CA2150905A1 - Catheter having a multiple durometer - Google Patents
Catheter having a multiple durometerInfo
- Publication number
- CA2150905A1 CA2150905A1 CA002150905A CA2150905A CA2150905A1 CA 2150905 A1 CA2150905 A1 CA 2150905A1 CA 002150905 A CA002150905 A CA 002150905A CA 2150905 A CA2150905 A CA 2150905A CA 2150905 A1 CA2150905 A1 CA 2150905A1
- Authority
- CA
- Canada
- Prior art keywords
- proximal
- catheter
- distal
- medial
- portions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0141—Tip steering devices having flexible regions as a result of using materials with different mechanical properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0057—Constructional details of force transmission elements, e.g. control wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0136—Handles therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
- A61B1/3132—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes for laparoscopy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
- A61M2025/015—Details of the distal fixation of the movable mechanical means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
Abstract
The catheter (20) has a housing (29) of such a size as to be readily held in the hand of the user, and a tubular proximal por-tion (41') connected to and extending from the housing. The proximal portion is formed of a flexible polymeric material. The dis-tal portion (43') is coaxial with and is adjacent to the proximal portion. The distal portion is also formed of a flexible polymeric material and it has substantially the same outer circumference as the proximal portion. The distal portion is more flexible than the medial portion (42'). A pair of control wires (51, 52) extend longitudinally through the proximal and distal portions and par-allel to the axis of the coaxial portions for bending the flexible portions in response to movement of the control wires. A control is carried by the housing for controlling the movement of the control wires to thereby bend the flexible portions and remotely ma-nipulate the catheter within a human body.
Description
W094/09843 2 1 5 0 9 0 5 PCT/US93/032~
CA,~h, ~:K HAVING A MULTIPLE DURONETER
Relate~ APPlication~
This application is related to copending U.S.
Patent Application Serial No. 07/908,403 filed on July 6, 1992.
Field Of The Invention This invention relates to medical catheters, and more particularly to a catheter having an elongated tube of variable hardness.
Back~Lo~l-d Of The Invention Various commercially available endoscopes and catheters exist for introducing into body vessels or cavities a variety of surgical tools, fluids, and other materials, such as radiographic contrast materials, angioplasty balloons, fiberoptic scopes, laser lights, and cutting instruments. Also, various t~c-hn;ques and systems have been developed for guiding or steering the catheters in the body vessels or cavities for use of these tools, fluids, and other materials. Therapeutic treatments may be made by inserting surgical instruments or fluid through a treatment channel of the endoscope or catheter.
Several devices have been developed for controlling movement in a portion of the catheter by use of wiring systems or linked segments within the catheter. Examples of these devices may be seen in U.S. Patent 3,948,251 by Hosono entitled "Flexible Tube Endoscope"; U. S. Patent 4,279,245 by Takagi et al.
W094/09~3 ~ PCT/US93/032 -~ 2-entitled "Flexible ~ube"; U.S. Patent 5,058,568 by Irion, et al. entitled "Flexible Endoscope"; U.S.
Patent 4,844,053 by Dittrich entitled "Flexible Tubular Device"; U. S. Pa_ent 4,753,222 by Morishita entitled "Endoscopic Flexible Tube"; U.S. Patent 4,580,551 by Siegmund, et al. entitled "Flexible Plastic Tube for Endoscopes And The Like"; and, U.S. Patent No.
4,911,148 by Sosnowski, et al. entitled "Deflectable End Endoscope With Detachable Flexible Shaft Assembly".
Other devices have been developed which control the movement of the catheter by insertion of an instrument into a channel or lumen of the catheter.
Examples of such devices may be seen in U.S. Patent 922,985 by Wappler entitled "Endoscope"; U.S. Patent 15 4,390,012 by Mizumoto entitled "Rigid Type Endoscope";
U.S. Patent 4,577,621 by Patel entitled "Endoscope Having Novel Proximate and Distal Portions"; U.S.
Patent 4,587,972 entitled "Device For Diagnostic And Therapeutic Intravascular Intervention"; U.S. Patent 20 4,625,713 by Hiraoka entitled "rnstrument Incorporated In A Resectoscope"; U.S. Patent 4,745,908 by Wardie entitled "Inspection Instrument With Flexible Shaft Having Deflection Compensation Means"; U.S. Patent 4,748,969 by Wardle entitled "Multi-Lumen Core 25 Deflecting Endoscope": and U.S. Patent 4,793,326 by Shishido entitled "Endoscope Having Insertion End Guide Means". These devices, although illustrating various control techn;ques, do not provide ease of insertion and control to the hand of the physician or user.
Other catheters using various other control tech~iques may be seen in U.S. Patent Number 3,892,228 by Mitsui entitled "Apparatus For Adjusting The Flexing Of ~he Bending Section Of An Endoscope"; U.S. ~atent 4,483,326 by Yamaka, et al. entitled "Curvature Control 35 MechAni.~m In Endoscopes": U.S. Patent 4,543,090 by McCoy entitled "Steerable and Aimable Catheter"; U.S.
W~94/09843 2 1 5 0 9 o ~ PCT/US93/03264 Patent 4,815,450 by Patel entitled "Endoscope Having Variable Flexibility"; U. S. Patent 4,890,602 by Hake entitled "Endoscope Construction with Means For Controlling Rigidity and Curvature of Flexible Endoscope Tube"; U.S. Patent 4,906,230 by Maloney, et al. entitled "Steerable Catheter Tip"; and, U.S. Patent 4,893,613 by Hake entitled "Endoscope Construction With Means For Con~rolling Rigidity And Curvature Of Flexible Endoscope Tube". These prior control systems attempted to control portions of the catheter by inserting instruments therein or inserting wires or other control mechanisms within a tube of the catheter.
Like the other devices, however, the mech~;cms for controlling the catheters are often awkward and bulky for insertion and control purposes.
Thus, there is still a need for a catheter imaging apparatus that allows for ease of insertion into the body vessel or cavity and also provides control and manipulation of the catheter while simultaneously using surgical tools, such as fiberoptic scopes or the like, and fluids needed for medical operations to thereby allow the physician to positionally locate, isolate, and view problem areas within the body vessel or cavity.
Summary Of The Invention Therefore an object of the present invention is to provide a catheter that can be more easily inserted into a vessel or cavity of the human body and provide control and flexibility for the user. The catheter of the invention advantageously provides an elongate tube having portions of varying durometer hardness to improve the ease of insertion into a body vessel or cavity and also provide improved control of the catheter.
These and other objects, features, and advantages of the present invention are set forth more fully below. In particular, the catheter has a housing of such a size as to be readily held in the hand of the user, and a tubular proximal portion connected to and exten~;ng from the housing. The proximal portion is formed of a flexible polymeric material. The distal portion is coaxial with and adjacent to the proximal portion. The distal portion is also formed of a flexible polymeric material and has substantially the same outer circumference as the proximal portion. The distal portion is more flexible than the proximal portion. A pair of Control Wires, extend longitudinally through the proximal and distal portions and parallel to the axis of the coaxial portions for bending the flexible portions in response to movement of the control wires. A control wheel is carried by the housing for controlling the movement of the control wires to thereby bend the flexible portions and remotely manipulate the catheter within a human body.
Brief De~cription Of The Drawin~s Some of the objects and advantages of the present invention having been stated, others will become apparent as the description proceeds when taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a perspective view of the catheter having a multiple durometer hardness according to the present invention;
FIG. 2 is an enlarged view of the control wheel and control wires of the catheter according to the present invention;
FIG. 3 is a top plan view of the catheter with parts broken away for clarity showing the flexible distal portion being more flexible than a proximal portion of the elongate tube;
FIG. 4 is a top plan view of a catheter illustrating the movement of the proximal, medial and W094/09843 2 1 5 ~ 9 0 ~ PCT/US93/03~
d~stal portions of the elongate tube in response to the con~rol wheel;
FIG. 5 is a top plan view of another em~odiment of the catheter having proximal, medial, and distal portions of an elongate tube and illustrating the flexibility of the movement of these portions;
FIG. 6 is an enlarged cross-sectional view taken along line 6-6 of FIG. 5 illustrating the working lumens and the control wires, as well as illustrating the similar outer circumference of the elongate tube of the catheter;
FIG. 7 is an enlarged cross-sectional view of another embodiment of the elongate tube of the catheter having additional control wires on each side of the working lumens for further control of the catheter;
FIG. 8 is an enlarged top end view of the catheter from the distal portion;
FIG. 9 is an enlarged side plan view of the distal portion of the catheter;
FIG. lO is an enlarged side plan view of a distal portion of a catheter having dashed lines for indicating the working lumens and the wires within the distal portion; and FIG. 11 is an enlarged cut away view of distal portion illustrating the insertion of the control wires within the catheter.
DescriPtion Of A Preferred Embo~iment The present invention now will be described more fully hereinafter with reference to the accompanying drawings in which a preferred embodiment of the invention is shown. Like numners refer to like elements throughout.
Referring now to the drawings, FIG. 1 is a perspective view of the catheter broadly designated at 20 having multiple durometer hardness. The catheter 20 has a housing 30 of such a size as to be readily held W094/09843 PCT/US9s/032 2 l5 o9a5 -6-in the hand of a user. The catheter 20 has an elongate tube 40 connected to the housing 30 and exten~ing from an end 29 thereof. The elongate tube ~0 is formed of a material having sufficient stiffness to maintain the elongate tube ~0 along a substantialI`y straight axis in the absence of an external force applied thereto. The housing 30 has access ports 31, 32 for permitting access to a pair of working lumens~5, ~6 (shown in FIG. 6) within the opposite end 28 of the elongate tube 40. An access port 34 within the housing 30 also provides access to one of the lumens ~5 or ~6 for a fiberscope or the like.
FIGS. 2-5, illustrate the controlled movement of the flexible portions of the catheter 20 having variable hardness. FIG. 2 is an enlarged view of the control means shown in the form of control wheel 35 carried by the housing 30 and having stem portions 36, 37 connected thereto. Means for adjusting the flexibility of the elongated tube ~0, shown in the form of control wires 51, 52, engage the stem portions 36, 37 of the control wheel 35 to bend thereby manipulate various flexible portions of the elongate tube 40 of a catheter 20. The ccntrol wires 51, 52 cross and wrap around the stem portions 36, 37 as illustrated in FIG.
2 and attach to a portion of the housing 30. It will be apparent that various other attaching or engaging locations may also be used, such as attaching the wires 51, 52 to the control wheel 35 in some manner.
FIG. 3 illustrates a top plan view of the catheter 20 with parts broken away for clarity and showing the proximal portion ~1, the medial portion 42, and a distal portion ~3. The phantom view and the directional arrow illustrate the controlled movement of the distal portion 43 of the catheter 20. The movement of the distal portion 43 of the catheter 20 without the medial 42 or the proximal 41 portions moving ~ w~ 94~0g843 ~ 1 5 0 9 ~ 5 PCT/US93/03264 illustrates the multiple durometer or hardness aspects of the polymeric material of the catheter. The elongate tube ~0 is typically formed of one type of polymeric material, preferably a thermoplastic such as polyurethane, but other polymeric materials apparent to those skilled in the art may also be used.
FIG. 4 further illustrates how the medial 42 and proximal ~1 portions bend more and are more flexible than the catheter movement illustrated in FIG.
CA,~h, ~:K HAVING A MULTIPLE DURONETER
Relate~ APPlication~
This application is related to copending U.S.
Patent Application Serial No. 07/908,403 filed on July 6, 1992.
Field Of The Invention This invention relates to medical catheters, and more particularly to a catheter having an elongated tube of variable hardness.
Back~Lo~l-d Of The Invention Various commercially available endoscopes and catheters exist for introducing into body vessels or cavities a variety of surgical tools, fluids, and other materials, such as radiographic contrast materials, angioplasty balloons, fiberoptic scopes, laser lights, and cutting instruments. Also, various t~c-hn;ques and systems have been developed for guiding or steering the catheters in the body vessels or cavities for use of these tools, fluids, and other materials. Therapeutic treatments may be made by inserting surgical instruments or fluid through a treatment channel of the endoscope or catheter.
Several devices have been developed for controlling movement in a portion of the catheter by use of wiring systems or linked segments within the catheter. Examples of these devices may be seen in U.S. Patent 3,948,251 by Hosono entitled "Flexible Tube Endoscope"; U. S. Patent 4,279,245 by Takagi et al.
W094/09~3 ~ PCT/US93/032 -~ 2-entitled "Flexible ~ube"; U.S. Patent 5,058,568 by Irion, et al. entitled "Flexible Endoscope"; U.S.
Patent 4,844,053 by Dittrich entitled "Flexible Tubular Device"; U. S. Pa_ent 4,753,222 by Morishita entitled "Endoscopic Flexible Tube"; U.S. Patent 4,580,551 by Siegmund, et al. entitled "Flexible Plastic Tube for Endoscopes And The Like"; and, U.S. Patent No.
4,911,148 by Sosnowski, et al. entitled "Deflectable End Endoscope With Detachable Flexible Shaft Assembly".
Other devices have been developed which control the movement of the catheter by insertion of an instrument into a channel or lumen of the catheter.
Examples of such devices may be seen in U.S. Patent 922,985 by Wappler entitled "Endoscope"; U.S. Patent 15 4,390,012 by Mizumoto entitled "Rigid Type Endoscope";
U.S. Patent 4,577,621 by Patel entitled "Endoscope Having Novel Proximate and Distal Portions"; U.S.
Patent 4,587,972 entitled "Device For Diagnostic And Therapeutic Intravascular Intervention"; U.S. Patent 20 4,625,713 by Hiraoka entitled "rnstrument Incorporated In A Resectoscope"; U.S. Patent 4,745,908 by Wardie entitled "Inspection Instrument With Flexible Shaft Having Deflection Compensation Means"; U.S. Patent 4,748,969 by Wardle entitled "Multi-Lumen Core 25 Deflecting Endoscope": and U.S. Patent 4,793,326 by Shishido entitled "Endoscope Having Insertion End Guide Means". These devices, although illustrating various control techn;ques, do not provide ease of insertion and control to the hand of the physician or user.
Other catheters using various other control tech~iques may be seen in U.S. Patent Number 3,892,228 by Mitsui entitled "Apparatus For Adjusting The Flexing Of ~he Bending Section Of An Endoscope"; U.S. ~atent 4,483,326 by Yamaka, et al. entitled "Curvature Control 35 MechAni.~m In Endoscopes": U.S. Patent 4,543,090 by McCoy entitled "Steerable and Aimable Catheter"; U.S.
W~94/09843 2 1 5 0 9 o ~ PCT/US93/03264 Patent 4,815,450 by Patel entitled "Endoscope Having Variable Flexibility"; U. S. Patent 4,890,602 by Hake entitled "Endoscope Construction with Means For Controlling Rigidity and Curvature of Flexible Endoscope Tube"; U.S. Patent 4,906,230 by Maloney, et al. entitled "Steerable Catheter Tip"; and, U.S. Patent 4,893,613 by Hake entitled "Endoscope Construction With Means For Con~rolling Rigidity And Curvature Of Flexible Endoscope Tube". These prior control systems attempted to control portions of the catheter by inserting instruments therein or inserting wires or other control mechanisms within a tube of the catheter.
Like the other devices, however, the mech~;cms for controlling the catheters are often awkward and bulky for insertion and control purposes.
Thus, there is still a need for a catheter imaging apparatus that allows for ease of insertion into the body vessel or cavity and also provides control and manipulation of the catheter while simultaneously using surgical tools, such as fiberoptic scopes or the like, and fluids needed for medical operations to thereby allow the physician to positionally locate, isolate, and view problem areas within the body vessel or cavity.
Summary Of The Invention Therefore an object of the present invention is to provide a catheter that can be more easily inserted into a vessel or cavity of the human body and provide control and flexibility for the user. The catheter of the invention advantageously provides an elongate tube having portions of varying durometer hardness to improve the ease of insertion into a body vessel or cavity and also provide improved control of the catheter.
These and other objects, features, and advantages of the present invention are set forth more fully below. In particular, the catheter has a housing of such a size as to be readily held in the hand of the user, and a tubular proximal portion connected to and exten~;ng from the housing. The proximal portion is formed of a flexible polymeric material. The distal portion is coaxial with and adjacent to the proximal portion. The distal portion is also formed of a flexible polymeric material and has substantially the same outer circumference as the proximal portion. The distal portion is more flexible than the proximal portion. A pair of Control Wires, extend longitudinally through the proximal and distal portions and parallel to the axis of the coaxial portions for bending the flexible portions in response to movement of the control wires. A control wheel is carried by the housing for controlling the movement of the control wires to thereby bend the flexible portions and remotely manipulate the catheter within a human body.
Brief De~cription Of The Drawin~s Some of the objects and advantages of the present invention having been stated, others will become apparent as the description proceeds when taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a perspective view of the catheter having a multiple durometer hardness according to the present invention;
FIG. 2 is an enlarged view of the control wheel and control wires of the catheter according to the present invention;
FIG. 3 is a top plan view of the catheter with parts broken away for clarity showing the flexible distal portion being more flexible than a proximal portion of the elongate tube;
FIG. 4 is a top plan view of a catheter illustrating the movement of the proximal, medial and W094/09843 2 1 5 ~ 9 0 ~ PCT/US93/03~
d~stal portions of the elongate tube in response to the con~rol wheel;
FIG. 5 is a top plan view of another em~odiment of the catheter having proximal, medial, and distal portions of an elongate tube and illustrating the flexibility of the movement of these portions;
FIG. 6 is an enlarged cross-sectional view taken along line 6-6 of FIG. 5 illustrating the working lumens and the control wires, as well as illustrating the similar outer circumference of the elongate tube of the catheter;
FIG. 7 is an enlarged cross-sectional view of another embodiment of the elongate tube of the catheter having additional control wires on each side of the working lumens for further control of the catheter;
FIG. 8 is an enlarged top end view of the catheter from the distal portion;
FIG. 9 is an enlarged side plan view of the distal portion of the catheter;
FIG. lO is an enlarged side plan view of a distal portion of a catheter having dashed lines for indicating the working lumens and the wires within the distal portion; and FIG. 11 is an enlarged cut away view of distal portion illustrating the insertion of the control wires within the catheter.
DescriPtion Of A Preferred Embo~iment The present invention now will be described more fully hereinafter with reference to the accompanying drawings in which a preferred embodiment of the invention is shown. Like numners refer to like elements throughout.
Referring now to the drawings, FIG. 1 is a perspective view of the catheter broadly designated at 20 having multiple durometer hardness. The catheter 20 has a housing 30 of such a size as to be readily held W094/09843 PCT/US9s/032 2 l5 o9a5 -6-in the hand of a user. The catheter 20 has an elongate tube 40 connected to the housing 30 and exten~ing from an end 29 thereof. The elongate tube ~0 is formed of a material having sufficient stiffness to maintain the elongate tube ~0 along a substantialI`y straight axis in the absence of an external force applied thereto. The housing 30 has access ports 31, 32 for permitting access to a pair of working lumens~5, ~6 (shown in FIG. 6) within the opposite end 28 of the elongate tube 40. An access port 34 within the housing 30 also provides access to one of the lumens ~5 or ~6 for a fiberscope or the like.
FIGS. 2-5, illustrate the controlled movement of the flexible portions of the catheter 20 having variable hardness. FIG. 2 is an enlarged view of the control means shown in the form of control wheel 35 carried by the housing 30 and having stem portions 36, 37 connected thereto. Means for adjusting the flexibility of the elongated tube ~0, shown in the form of control wires 51, 52, engage the stem portions 36, 37 of the control wheel 35 to bend thereby manipulate various flexible portions of the elongate tube 40 of a catheter 20. The ccntrol wires 51, 52 cross and wrap around the stem portions 36, 37 as illustrated in FIG.
2 and attach to a portion of the housing 30. It will be apparent that various other attaching or engaging locations may also be used, such as attaching the wires 51, 52 to the control wheel 35 in some manner.
FIG. 3 illustrates a top plan view of the catheter 20 with parts broken away for clarity and showing the proximal portion ~1, the medial portion 42, and a distal portion ~3. The phantom view and the directional arrow illustrate the controlled movement of the distal portion 43 of the catheter 20. The movement of the distal portion 43 of the catheter 20 without the medial 42 or the proximal 41 portions moving ~ w~ 94~0g843 ~ 1 5 0 9 ~ 5 PCT/US93/03264 illustrates the multiple durometer or hardness aspects of the polymeric material of the catheter. The elongate tube ~0 is typically formed of one type of polymeric material, preferably a thermoplastic such as polyurethane, but other polymeric materials apparent to those skilled in the art may also be used.
FIG. 4 further illustrates how the medial 42 and proximal ~1 portions bend more and are more flexible than the catheter movement illustrated in FIG.
3. This flexibility depends on the hardness characteristics of the polymeric material used to form the various portions ~1, 42, 43 of the elongate tube ~0. For forming the elongate tube 40 of the catheter 20, the polymeric material is extruded having characteristics such to form the elongate tube ~o having cross-sectional profiles as illustrated in FIGS.
6 or 7. The extruding process provides the formation of the proximal ~1, medial 42, and/or distal ~3 portions having varying hardness by use of polymeric material such as polyurethane having different durometer characteristics. Typically, the proximal 41, medial 42, and distal ~3 portions have substantially the same outer circumference throughout the elongate tube ~0. The extrusions are cut to the desired length and are joined using adhesive, sonic welding, or radio frequency ("RF") welding. Other various joining techniques, such as solvent bonding, apparent to those skilled in the art may also be used. The lumens ~6, 47 are kept in line by using a mandrel of the proper size to ensure proper alignment. In addition, molding or other tube forming techn;ques, as well as the extruding discussed herein, may be used to form the various tube portions 41, ~2, ~3. If the tube portions are molded, various hardening t~chn;ques apparent to those skilled in the art may also be used to form the varying flexibility of the tube portions.
2~9~
FIG. 5 illustrates another embodiment of the catheter 20~ taken from the top plan view with parts broken away for clarity illustrating controlled movement of the tubular coaxial proximal ~1', medial 42', and distal ~1' portions. In this embodiment, the control wires 51 and 52 are able to move the distal portion at a greater angular attitude than the medial portion ~2' as illustrated by the directional arrows.
The embodiment of FIGS. 3-5 use the control wires 51, 52 to change the angular attitude of the distal 43 and medial 42 portions from the substantial straight axis to thereby remotely manipulate these portions by use of the control wheel 35. It will be apparent to those skilled in the art that various other means may be used to control the movement of the various portions 41, 42, 43 of the elongate tube ~0 or remotely manipulate the wires or the like. Further, the control wires may only extend into various portions ~ 2, or 43 of the elongate tube ~0 for changing the angular attitude of 2Q the medial ~2 or proximal ~1 portions from the substantially straight axis separately from any changes in the angular attitude of the distal portion to thereby manipulate the medial 42 or the proximal portion.
FIGS. 6 and 7 illustrate the location of the working lumens ~6, 47 ext~n~;ng parallel to the axis of the coaxial proximal 41 medial and distal ~3 portions and the control wires 51, 52 within the elongate tube 40. FIG. 6 is an enlarged cross sectional view taken along line 6-6 of FIG. 5. FIG. 6 illustrates that working lumens ~6, 47, of the catheter 20. It also illustrates the location of the control wires 51, 52 in the preferred embodiment. As previously discussed the various portions 41, 42, 43, of the elongate tube 20 have substantially the same outer circumference and are jointed at ends thereof by one or more of the various W O 94/09843 2 1 ~ O 9 0 ~ PC~r/US93/03264 t~chniques described above. FIG 7. is a cross-sectional view similar to FIG. 6 of another embodiment of the catheter 20' having control wires 51', 52', S3', 5~ to provide additional control of the catheter 20. This embodiment can be used to separately change the angular attitude of the various portions 41, ~2, ~3 of the elongate tube ~0. The control wires 53', 54', for example, may only extend longit~l~;nAlly into the medial portion ~2 to thereby separately bend and manipulate that portion of the catheter 20 with respect to the distal portion 43.
FIGS. 8-11 illustrate views of the distal portion 43 of the catheter 20 and the construction thereof. FIG. 8 is a top plan view of the distal portion 43 of the catheter 20 illustrating the working lumens 46, ~7, for access of a fiberoptic scope or the like into a vessel or cavity of the human body. FIG. 9 is a side plan views illustrating one of the lumens 47.
FIG. 10 is another side plan views having phantom views of the location of the lumens 46, 47 and the control wires 51, 52.
FIG. 11 is an enlarged cross-sectional view illustrating the insertion of control wires 51, 52, prior to forming the tip of the distal portion 43 to thereby form a converging tip as illustrated in FIGS.
8-10 for ease of insertion and access into and through a body vessel, cavity, skin or tissue. The control wires 51, 52 are inserted into the wire channels of the various portions ~1, 42, 43 and looped through the distal portion 43. The wires 51, 52 are held under tension as the distal portion 43 is inserted into a tipping die. The die is heated and shaped to form the convergent tip and then cooled to form the tip of the flexible distal portion 43 as illustrated in FIGS. 8-10. The wires 51, 52 preferably need to be fixed tothe elongate tube 40 in some manner so that the W094/09843 PCT/US93/032 ~
2~ S -10-movement of the control wheel 35 or the like moves the wires 51, 52 to thereby bend and manipulate the flexible portions of the catheter 20. Numerous t~chn; ques can be used to fix the wires 51, 52 to the elongate tube ~0 such as RF welding or sonic welding ends of the wires 51, 52 to a portion, such as the distal portion ~3 of the elongate tube ~0. As illustrated in the preferred embo~;~ent of FIG. 11, the looping of the wires 51, 52 through the wire channels in the distal portion 43 secures the wires to a portion of the elongate tube 40 and also reduces the slippage of the wires as the wires 51, 52 are moved longitll~in~lly with respect to one another to bend the various portions ~ 2, ~3 of the elongate tube ~0.
In the drawings and specification, there have been disclosed typical preferred embodiments of the invention and, although specific terms are employed, they are used in a generic and descriptive sense only and not for the purposes of limitation, the scope of the invention being set forth in the following claims.
6 or 7. The extruding process provides the formation of the proximal ~1, medial 42, and/or distal ~3 portions having varying hardness by use of polymeric material such as polyurethane having different durometer characteristics. Typically, the proximal 41, medial 42, and distal ~3 portions have substantially the same outer circumference throughout the elongate tube ~0. The extrusions are cut to the desired length and are joined using adhesive, sonic welding, or radio frequency ("RF") welding. Other various joining techniques, such as solvent bonding, apparent to those skilled in the art may also be used. The lumens ~6, 47 are kept in line by using a mandrel of the proper size to ensure proper alignment. In addition, molding or other tube forming techn;ques, as well as the extruding discussed herein, may be used to form the various tube portions 41, ~2, ~3. If the tube portions are molded, various hardening t~chn;ques apparent to those skilled in the art may also be used to form the varying flexibility of the tube portions.
2~9~
FIG. 5 illustrates another embodiment of the catheter 20~ taken from the top plan view with parts broken away for clarity illustrating controlled movement of the tubular coaxial proximal ~1', medial 42', and distal ~1' portions. In this embodiment, the control wires 51 and 52 are able to move the distal portion at a greater angular attitude than the medial portion ~2' as illustrated by the directional arrows.
The embodiment of FIGS. 3-5 use the control wires 51, 52 to change the angular attitude of the distal 43 and medial 42 portions from the substantial straight axis to thereby remotely manipulate these portions by use of the control wheel 35. It will be apparent to those skilled in the art that various other means may be used to control the movement of the various portions 41, 42, 43 of the elongate tube ~0 or remotely manipulate the wires or the like. Further, the control wires may only extend into various portions ~ 2, or 43 of the elongate tube ~0 for changing the angular attitude of 2Q the medial ~2 or proximal ~1 portions from the substantially straight axis separately from any changes in the angular attitude of the distal portion to thereby manipulate the medial 42 or the proximal portion.
FIGS. 6 and 7 illustrate the location of the working lumens ~6, 47 ext~n~;ng parallel to the axis of the coaxial proximal 41 medial and distal ~3 portions and the control wires 51, 52 within the elongate tube 40. FIG. 6 is an enlarged cross sectional view taken along line 6-6 of FIG. 5. FIG. 6 illustrates that working lumens ~6, 47, of the catheter 20. It also illustrates the location of the control wires 51, 52 in the preferred embodiment. As previously discussed the various portions 41, 42, 43, of the elongate tube 20 have substantially the same outer circumference and are jointed at ends thereof by one or more of the various W O 94/09843 2 1 ~ O 9 0 ~ PC~r/US93/03264 t~chniques described above. FIG 7. is a cross-sectional view similar to FIG. 6 of another embodiment of the catheter 20' having control wires 51', 52', S3', 5~ to provide additional control of the catheter 20. This embodiment can be used to separately change the angular attitude of the various portions 41, ~2, ~3 of the elongate tube ~0. The control wires 53', 54', for example, may only extend longit~l~;nAlly into the medial portion ~2 to thereby separately bend and manipulate that portion of the catheter 20 with respect to the distal portion 43.
FIGS. 8-11 illustrate views of the distal portion 43 of the catheter 20 and the construction thereof. FIG. 8 is a top plan view of the distal portion 43 of the catheter 20 illustrating the working lumens 46, ~7, for access of a fiberoptic scope or the like into a vessel or cavity of the human body. FIG. 9 is a side plan views illustrating one of the lumens 47.
FIG. 10 is another side plan views having phantom views of the location of the lumens 46, 47 and the control wires 51, 52.
FIG. 11 is an enlarged cross-sectional view illustrating the insertion of control wires 51, 52, prior to forming the tip of the distal portion 43 to thereby form a converging tip as illustrated in FIGS.
8-10 for ease of insertion and access into and through a body vessel, cavity, skin or tissue. The control wires 51, 52 are inserted into the wire channels of the various portions ~1, 42, 43 and looped through the distal portion 43. The wires 51, 52 are held under tension as the distal portion 43 is inserted into a tipping die. The die is heated and shaped to form the convergent tip and then cooled to form the tip of the flexible distal portion 43 as illustrated in FIGS. 8-10. The wires 51, 52 preferably need to be fixed tothe elongate tube 40 in some manner so that the W094/09843 PCT/US93/032 ~
2~ S -10-movement of the control wheel 35 or the like moves the wires 51, 52 to thereby bend and manipulate the flexible portions of the catheter 20. Numerous t~chn; ques can be used to fix the wires 51, 52 to the elongate tube ~0 such as RF welding or sonic welding ends of the wires 51, 52 to a portion, such as the distal portion ~3 of the elongate tube ~0. As illustrated in the preferred embo~;~ent of FIG. 11, the looping of the wires 51, 52 through the wire channels in the distal portion 43 secures the wires to a portion of the elongate tube 40 and also reduces the slippage of the wires as the wires 51, 52 are moved longitll~in~lly with respect to one another to bend the various portions ~ 2, ~3 of the elongate tube ~0.
In the drawings and specification, there have been disclosed typical preferred embodiments of the invention and, although specific terms are employed, they are used in a generic and descriptive sense only and not for the purposes of limitation, the scope of the invention being set forth in the following claims.
Claims (36)
1. A catheter for easily inserting into a vessel or cavity of the human body to thereby provide improved flexibility and manipulation of a portion of the catheter within the vessel or cavity, said catheter comprising:
an elongate tube formed of a material having sufficient stiffness to maintain said elongate tube along a substantially straight axis in the absence of an external force applied thereto, said elongate tube having a distal portion and a proximal portion, each of said portions having substantially the same outer circumference, and said distal portion being more flexible than said proximal portion.
an elongate tube formed of a material having sufficient stiffness to maintain said elongate tube along a substantially straight axis in the absence of an external force applied thereto, said elongate tube having a distal portion and a proximal portion, each of said portions having substantially the same outer circumference, and said distal portion being more flexible than said proximal portion.
2. A catheter according to Claim 1, further comprising a medial portion of said elongate tube between said distal and proximal portion, said medial portion being more flexible than said proximal portion and less flexible than said distal portion.
3. A catheter according to Claim 2, wherein said proximal, medial, and distal portions are welded together at ends thereof.
4. A catheter according to Claim 1, wherein said distal portion of said elongate tube converges to form a tip for ease of access into and through a body vessel, cavity, skin, or tissue.
5. A catheter according to Claim 1, further comprising means within said elongate tube for changing the angular attitude of said distal portion from said substantially straight axis to thereby remotely manipulate said distal portion of said catheter.
6. A catheter according to Claim 1, further comprising means within said elongate tube for changing the angular attitude of said proximal portion from said substantially straight axis separately from any changes in the angular attitude of said distal portion to thereby manipulate said medial portion of said catheter.
7. A catheter according to Claim 1, further comprising a wire extending longitudinally through said elongate tube for controlling a change in the angular attitude of said distal portion from said substantially straight axis to thereby remotely manipulate said distal portion of said catheter.
8. A catheter according to Claim 1, further comprising a housing of such a size as to be readily held in the hand of a user and connected to said proximal portion of said elongate tube to thereby provide control and manipulation of said elongate tube.
9. A catheter according to Claim 1, wherein said material forming said elongate tube is a polymeric material.
10. A catheter according to Claim 1, wherein said proximal and distal portions are welded together at common ends thereof.
11. A catheter for easily inserting into a vessel or cavity of the human body to thereby provide improved flexibility and manipulation of a portion of the catheter within the vessel or cavity, said catheter comprising:
a tubular proximal portion formed of a flexible polymeric material;
a tubular medial portion coaxial with and adjacent said proximal portion, and formed of a flexible polymeric material, said medial portion having substantially the same outer circumference as said proximal portion, and said medial portion being more flexible than said proximal portion; and a tubular distal portion coaxial with and adjacent said medial portion and on the opposite end of said medial portion from said proximal portion, and formed of a flexible polymeric material, said distal portion having substantially the same outer circumference as said medial portion and said proximal portion, and said distal portion being more flexible than said medial portion.
a tubular proximal portion formed of a flexible polymeric material;
a tubular medial portion coaxial with and adjacent said proximal portion, and formed of a flexible polymeric material, said medial portion having substantially the same outer circumference as said proximal portion, and said medial portion being more flexible than said proximal portion; and a tubular distal portion coaxial with and adjacent said medial portion and on the opposite end of said medial portion from said proximal portion, and formed of a flexible polymeric material, said distal portion having substantially the same outer circumference as said medial portion and said proximal portion, and said distal portion being more flexible than said medial portion.
12. A catheter according to Claim 11, wherein said proximal, medial, and distal portions are formed from a single type of polymeric material.
13. A catheter according to Claim 12, wherein said flexible polymeric material is a thermoplastic polymer.
14. A catheter according to Claim 12, wherein said flexible polymeric material is polyurethane.
15. A catheter according to Claim 11, wherein said proximal, medial, and distal portions are separate pieces joined to form a single elongate tube.
16. A catheter according to Claim 11, further comprising a pair of lumens extending parallel to the axis of said coaxial proximal, medial, and distal portions, for providing a working channel from said proximal portion of said catheter to said distal portion.
17. A catheter according to Claim 16, further comprising a pair of control wires extending longitudinally through said proximal, medial, and distal portions and parallel to the axis of said coaxial portions for bending and thereby manipulating said flexible portions when said control wires are moved longitudinally with respect to one another.
18. A catheter according to Claim 17, wherein each of said control wires extends longitudinally from said proximal portion, through said medial portion, and into said distal portion, looped within said distal portion and extending longitudinally from said distal portion, through said medial portion, and into said proximal portion to thereby reduce slippage of said control wires as said wires are moved longitudinally with respect to one another.
19. A catheter according to Claim 11, further comprising four control wires extending longitudinally through said proximal, medial, and distal portions and parallel to the axis of said coaxial portions for bending and thereby manipulating said flexible portions when said control wires are moved with respect to one another.
20. A catheter according to Claim 19, wherein said control wires comprise two pairs of wires, each of said control wires extending longitudinally from said proximal portion, through said medial portion, and into said distal portion, looped within said distal portion and extending longitudinally from said distal portion, through said medial portion, and into said proximal portion to thereby reduce slippage of said control wires as said wires are moved longitudinally with respect to one another.
21. A catheter according to Claim 11, wherein said proximal, medial, and distal portions are welded together at respective common ends thereof.
22. A catheter for easily inserting into a vessel or cavity of the human body to thereby provide improved flexibility and manipulation of a portion of the catheter within the vessel or cavity, said catheter comprising:
a housing of such a size as to be readily held in the hand of a user;
a tubular proximal portion connected to and extending from said housing, said proximal portion formed of a flexible polymeric material;
a tubular distal portion coaxial with and adjacent to said proximal portion, and formed of a flexible polymeric material, said distal portion having substantially the same outer circumference as said medial portion and said proximal portion, and said distal portion being more flexible than said proximal portion;
control wires extending longitudinally through said proximal and distal portions and parallel to the axis of said coaxial portions for bending said flexible portions in response to movement of said control wires;
and means carried by said housing for controlling the movement of said wires to thereby bend said flexible portions and remotely manipulate said catheter within a human body.
a housing of such a size as to be readily held in the hand of a user;
a tubular proximal portion connected to and extending from said housing, said proximal portion formed of a flexible polymeric material;
a tubular distal portion coaxial with and adjacent to said proximal portion, and formed of a flexible polymeric material, said distal portion having substantially the same outer circumference as said medial portion and said proximal portion, and said distal portion being more flexible than said proximal portion;
control wires extending longitudinally through said proximal and distal portions and parallel to the axis of said coaxial portions for bending said flexible portions in response to movement of said control wires;
and means carried by said housing for controlling the movement of said wires to thereby bend said flexible portions and remotely manipulate said catheter within a human body.
23. A catheter according to Claim 22, further comprising a tubular medial portion coaxial with and adjacent said proximal portion and said distal portion, and formed of a flexible polymeric material, said medial portion having substantially the same outer circumference as said proximal portion and said distal portion, and said medial portion being more flexible than said proximal portion and less flexible than said distal portion.
24. A catheter according to Claim 23, further comprising a pair of lumens extending parallel to the axis of said coaxial proximal, medial, and distal portions, for providing a working channel from said proximal portion of said catheter to said distal portion.
25. A catheter according to Claim 24, wherein said pair of lumens extend into said housing for accessing said lumens therefrom.
26. A catheter according to Claim 22, wherein said wire control means comprises a rotating control wheel engaging a portion of each of said control wires so that rotation of said control wheel moves said wires and thereby changes the angular attitude of said distal portion of said elongate tube.
27. A catheter according to Claim 22, further comprising a pair of control wires extending longitudinally through said proximal, medial, and distal portions and parallel to the axis of said coaxial portions for bending and thereby manipulating said flexible portions when said control wires are moved longitudinally with respect to one another.
28. A catheter according to Claim 27, wherein each of said control wires extends longitudinally from said proximal portion, through said medial portion, and into said distal portion, looped within said distal portion and extending longitudinally from said distal portion, through said medial portion, and into said proximal portion to thereby reduce slippage of said control wires as said wires are moved longitudinally with respect to one another.
29. A catheter according to Claim 22, further comprising four control wires extending longitudinally through said proximal, medial, and distal portions and parallel to the axis of said coaxial portions for bending and thereby manipulating said flexible portions when said control wires are moved with respect to one another.
30. A catheter according to Claim 29, wherein said control wires comprise two pairs of wires, each of said control wires extending longitudinally from said proximal portion, through said medial portion, and into said distal portion, looped within said distal portion and extending longitudinally from said distal portion, through said medial portion, and into said proximal portion to thereby reduce slippage of said control wires as said wires are moved longitudinally with respect to one another.
31. A method of forming a catheter having a multiple durometer hardness for easily inserting into a vessel or cavity of the human body to thereby provide improved flexibility and manipulation of a portion of the catheter within the vessel or cavity, comprising the steps of:
welding together elongate coaxial tube portions formed of a polymeric material and having substantially the same outer circumference and variable flexibility with respect to each other to thereby provide improved flexibility and manipulation of a portion of the catheter within the vessel or cavity.
welding together elongate coaxial tube portions formed of a polymeric material and having substantially the same outer circumference and variable flexibility with respect to each other to thereby provide improved flexibility and manipulation of a portion of the catheter within the vessel or cavity.
32. A method of forming a catheter according to Claim 31, wherein the step of welding comprises radio frequency welding.
33. A method of forming a catheter according to Claim 31, wherein the step of welding comprises sonic welding.
34. A catheter according to Claim 31, further comprising the step of extruding said polymeric material to form said tube portions of varying flexibilities prior to said welding step.
35. A method of forming a catheter according to Claim 31, further comprising the steps of:
forming a distal tube portion from a polymeric material; and forming a proximal tube portion from a polymeric material and having substantially the same outer circumference as the distal tube portion, prior to said welding step.
forming a distal tube portion from a polymeric material; and forming a proximal tube portion from a polymeric material and having substantially the same outer circumference as the distal tube portion, prior to said welding step.
36. A method of forming a catheter according to Claim 31, further comprising the step of forming a convergent tip of portion of a tube for ease of access into and through a body vessel, cavity, skin or tissue.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/970,490 US5399164A (en) | 1992-11-02 | 1992-11-02 | Catheter having a multiple durometer |
US970,490 | 1992-11-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2150905A1 true CA2150905A1 (en) | 1994-05-11 |
Family
ID=25517023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002150905A Abandoned CA2150905A1 (en) | 1992-11-02 | 1993-04-06 | Catheter having a multiple durometer |
Country Status (5)
Country | Link |
---|---|
US (3) | US5399164A (en) |
EP (2) | EP1334743A3 (en) |
AU (1) | AU673361B2 (en) |
CA (1) | CA2150905A1 (en) |
WO (1) | WO1994009843A1 (en) |
Families Citing this family (154)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5857996A (en) | 1992-07-06 | 1999-01-12 | Catheter Imaging Systems | Method of epidermal surgery |
DE4320962C2 (en) * | 1993-06-24 | 1997-04-17 | Osypka Peter | Catheter made of a flexible plastic tube |
US6406453B1 (en) | 1995-04-26 | 2002-06-18 | Medtronic Xomed, Inc. | Composite ventilation tube |
WO1996034646A1 (en) * | 1995-05-01 | 1996-11-07 | Medtronic Cardiorhythm | Dual curve ablation catheter and method |
USD398986S (en) | 1996-01-16 | 1998-09-29 | Catheter Imaging Systems, Inc. | Handle interface for steerable catheter |
US5860953A (en) | 1995-11-21 | 1999-01-19 | Catheter Imaging Systems, Inc. | Steerable catheter having disposable module and sterilizable handle and method of connecting same |
US6007531A (en) | 1995-11-21 | 1999-12-28 | Catheter Imaging Systems, Inc. | Steerable catheter having disposable module and sterilizable handle and method of connecting same |
USD405881S (en) | 1996-01-16 | 1999-02-16 | Catheter Imaging Systems, Inc. | Handle for steerable catheter |
US6398776B1 (en) | 1996-06-03 | 2002-06-04 | Terumo Kabushiki Kaisha | Tubular medical device |
US5755664A (en) * | 1996-07-11 | 1998-05-26 | Arch Development Corporation | Wavefront direction mapping catheter system |
US5855567A (en) * | 1996-08-22 | 1999-01-05 | Scimed Life Systems, Inc. | Catheter management system |
AU4357697A (en) * | 1996-08-23 | 1998-03-06 | Matt D. Pursley | Apparatus and method for nonextrusion manufacturing of catheters |
US5730734A (en) * | 1996-11-14 | 1998-03-24 | Scimed Life Systems, Inc. | Catheter systems with interchangeable parts |
US6146355A (en) * | 1996-12-30 | 2000-11-14 | Myelotec, Inc. | Steerable catheter |
US6213974B1 (en) | 1996-12-30 | 2001-04-10 | Visionary Biomedical, Inc. | Steerable catheter having segmented tip and one-piece inlet housing, and method of fabricating same |
US5938653A (en) * | 1997-06-09 | 1999-08-17 | Scimed Life Systems, Inc. | Catheter having controlled flexibility and method of manufacture |
US5921956A (en) * | 1997-09-24 | 1999-07-13 | Smith & Nephew, Inc. | Surgical instrument |
US6077258A (en) * | 1997-10-03 | 2000-06-20 | Scimed Life Systems, Inc. | Braided angiography catheter having full length radiopacity and controlled flexibility |
US5908413A (en) * | 1997-10-03 | 1999-06-01 | Scimed Life Systems, Inc. | Radiopaque catheter and method of manufacture thereof |
US5891110A (en) * | 1997-10-15 | 1999-04-06 | Scimed Life Systems, Inc. | Over-the-wire catheter with improved trackability |
US6048338A (en) * | 1997-10-15 | 2000-04-11 | Scimed Life Systems, Inc. | Catheter with spiral cut transition member |
US6036682A (en) | 1997-12-02 | 2000-03-14 | Scimed Life Systems, Inc. | Catheter having a plurality of integral radiopaque bands |
US6251092B1 (en) * | 1997-12-30 | 2001-06-26 | Medtronic, Inc. | Deflectable guiding catheter |
US6295990B1 (en) | 1998-02-03 | 2001-10-02 | Salient Interventional Systems, Inc. | Methods and systems for treating ischemia |
US6622367B1 (en) * | 1998-02-03 | 2003-09-23 | Salient Interventional Systems, Inc. | Intravascular device and method of manufacture and use |
US7879022B2 (en) | 1998-02-06 | 2011-02-01 | Medrad, Inc. | Rapid exchange fluid jet thrombectomy device and method |
US9586023B2 (en) | 1998-02-06 | 2017-03-07 | Boston Scientific Limited | Direct stream hydrodynamic catheter system |
US6517515B1 (en) | 1998-03-04 | 2003-02-11 | Scimed Life Systems, Inc. | Catheter having variable size guide wire lumen |
US6113579A (en) | 1998-03-04 | 2000-09-05 | Scimed Life Systems, Inc. | Catheter tip designs and methods for improved stent crossing |
US6198974B1 (en) * | 1998-08-14 | 2001-03-06 | Cordis Webster, Inc. | Bi-directional steerable catheter |
US6591472B1 (en) * | 1998-12-08 | 2003-07-15 | Medtronic, Inc. | Multiple segment catheter and method of fabrication |
US6264630B1 (en) | 1998-12-23 | 2001-07-24 | Scimed Life Systems, Inc. | Balloon catheter having an oscillating tip configuration |
US6709429B1 (en) * | 2000-01-19 | 2004-03-23 | Scimed Life Systems, Inc. | Intravascular catheter with multiple axial fibers |
US6942654B1 (en) | 2000-01-19 | 2005-09-13 | Scimed Life Systems, Inc. | Intravascular catheter with axial member |
US6171295B1 (en) | 1999-01-20 | 2001-01-09 | Scimed Life Systems, Inc. | Intravascular catheter with composite reinforcement |
US6374476B1 (en) * | 1999-03-03 | 2002-04-23 | Codris Webster, Inc. | Method for making a catheter tip section |
US6355027B1 (en) | 1999-06-09 | 2002-03-12 | Possis Medical, Inc. | Flexible microcatheter |
US6783510B1 (en) * | 1999-07-08 | 2004-08-31 | C.R. Bard, Inc. | Steerable catheter |
US6508804B2 (en) | 1999-07-28 | 2003-01-21 | Scimed Life Systems, Inc. | Catheter having continuous lattice and coil reinforcement |
US20030032896A1 (en) * | 2000-09-25 | 2003-02-13 | Vance Products, Inc., D/B/A/ Cook Urological, Inc. | Microvolume embryo transfer system |
US6572536B1 (en) | 1999-11-05 | 2003-06-03 | Visionary Biomedical, Inc. | Autoclavable flexible fiberscope |
CA2395924C (en) * | 2000-01-06 | 2008-11-18 | Raymond L. Bedell | Steerable fiberoptic epidural balloon catheter and scope |
ATE363312T1 (en) | 2000-03-23 | 2007-06-15 | Cook Inc | CATHETER INTRODUCTION SLEEVE |
US6530897B2 (en) * | 2000-04-28 | 2003-03-11 | Mahase Nardeo | Steerable medical catheter with bendable encapsulated metal spring tip fused to polymeric shaft |
US6881209B2 (en) * | 2000-05-25 | 2005-04-19 | Cook Incorporated | Medical device including unitary, continuous portion of varying durometer |
US6623504B2 (en) | 2000-12-08 | 2003-09-23 | Scimed Life Systems, Inc. | Balloon catheter with radiopaque distal tip |
US20060009740A1 (en) * | 2001-08-28 | 2006-01-12 | Michael Higgins | Multiple lumen catheter having a soft tip |
US7201763B2 (en) * | 2001-10-24 | 2007-04-10 | Boston Scientific Scimed, Inc. | Distal balloon waist material relief and method of manufacture |
US6923787B2 (en) * | 2001-12-20 | 2005-08-02 | Scimed Life Systems, Inc. | Catheter having an improved balloon-to-catheter bond |
US7306574B2 (en) * | 2002-01-17 | 2007-12-11 | Optivia Medical, Llc | Steerable dilatation system, dilator, and related methods for stepped dilatation |
US7653438B2 (en) | 2002-04-08 | 2010-01-26 | Ardian, Inc. | Methods and apparatus for renal neuromodulation |
US8774913B2 (en) | 2002-04-08 | 2014-07-08 | Medtronic Ardian Luxembourg S.A.R.L. | Methods and apparatus for intravasculary-induced neuromodulation |
US8150519B2 (en) | 2002-04-08 | 2012-04-03 | Ardian, Inc. | Methods and apparatus for bilateral renal neuromodulation |
US7029467B2 (en) * | 2002-07-16 | 2006-04-18 | Edwards Lifesciences Corporation | Multiple lumen catheter having a soft tip |
US6999809B2 (en) * | 2002-07-16 | 2006-02-14 | Edwards Lifesciences Corporation | Central venous catheter having a soft tip and fiber optics |
JP4418366B2 (en) | 2002-08-13 | 2010-02-17 | ウィルソン−クック・メディカル・インコーポレーテッド | ERCP catheter with removable handle for basket-compatible basket |
US20040034333A1 (en) * | 2002-08-19 | 2004-02-19 | Seese Timothy M. | Dialysis catheters with optimized user-friendly connections |
US7147627B2 (en) | 2002-08-21 | 2006-12-12 | Hollister Incorporated | Bowel management system |
US20110172644A1 (en) * | 2002-12-04 | 2011-07-14 | Zanoni Michael S | Multi layer coextruded catheter shaft |
EP1596761B1 (en) * | 2003-02-14 | 2015-06-17 | Salviac Limited | Stent delivery and deployment system |
US7182745B2 (en) * | 2003-03-25 | 2007-02-27 | Boston Scientific Scimed, Inc. | Retaining stent |
US20040199052A1 (en) | 2003-04-01 | 2004-10-07 | Scimed Life Systems, Inc. | Endoscopic imaging system |
WO2004091471A2 (en) * | 2003-04-04 | 2004-10-28 | Berger, Constance, F. | Apparatus for heating bottles and method of manufacturing same |
US7632288B2 (en) | 2003-05-12 | 2009-12-15 | Boston Scientific Scimed, Inc. | Cutting balloon catheter with improved pushability |
US7758604B2 (en) * | 2003-05-29 | 2010-07-20 | Boston Scientific Scimed, Inc. | Cutting balloon catheter with improved balloon configuration |
US20060129091A1 (en) | 2004-12-10 | 2006-06-15 | Possis Medical, Inc. | Enhanced cross stream mechanical thrombectomy catheter with backloading manifold |
AU2004268620B2 (en) * | 2003-09-02 | 2010-12-02 | Abbott Laboratories | Delivery system for a medical device |
US7794489B2 (en) * | 2003-09-02 | 2010-09-14 | Abbott Laboratories | Delivery system for a medical device |
US7780716B2 (en) * | 2003-09-02 | 2010-08-24 | Abbott Laboratories | Delivery system for a medical device |
US7922654B2 (en) | 2004-08-09 | 2011-04-12 | Boston Scientific Scimed, Inc. | Fiber optic imaging catheter |
AU2005228956B2 (en) | 2004-03-23 | 2011-08-18 | Boston Scientific Limited | In-vivo visualization system |
US11819192B2 (en) | 2004-03-23 | 2023-11-21 | Boston Scientific Scimed, Inc. | In-vivo visualization system |
US7754047B2 (en) | 2004-04-08 | 2010-07-13 | Boston Scientific Scimed, Inc. | Cutting balloon catheter and method for blade mounting |
US7566319B2 (en) | 2004-04-21 | 2009-07-28 | Boston Scientific Scimed, Inc. | Traction balloon |
US7572244B2 (en) | 2004-08-02 | 2009-08-11 | Medrad, Inc. | Miniature cross stream thrombectomy catheter |
WO2006044059A2 (en) * | 2004-09-11 | 2006-04-27 | The Board Of Trustees Of The Leland Stanford Junior University | Method and apparatus for modeling the modal properties of optical waveguides |
US7744585B2 (en) * | 2004-09-29 | 2010-06-29 | Boston Scientific Scimed, Inc. | Catheter with directed flow design |
US20060100492A1 (en) * | 2004-10-29 | 2006-05-11 | Medtronic, Inc. | Intra-esophageal catheter |
US7291158B2 (en) * | 2004-11-12 | 2007-11-06 | Boston Scientific Scimed, Inc. | Cutting balloon catheter having a segmented blade |
US8038691B2 (en) | 2004-11-12 | 2011-10-18 | Boston Scientific Scimed, Inc. | Cutting balloon catheter having flexible atherotomes |
US7744574B2 (en) * | 2004-12-16 | 2010-06-29 | Boston Scientific Scimed, Inc. | Catheter tip to reduce wire lock |
US20060184191A1 (en) | 2005-02-11 | 2006-08-17 | Boston Scientific Scimed, Inc. | Cutting balloon catheter having increased flexibility regions |
US7553305B2 (en) * | 2005-06-09 | 2009-06-30 | Enpath Medical, Inc. | Push-pull wire anchor |
US7695496B2 (en) | 2005-06-10 | 2010-04-13 | Depuy Spine, Inc. | Posterior dynamic stabilization Y-device |
WO2007005799A1 (en) | 2005-06-30 | 2007-01-11 | Abbott Laboratories | Delivery system for a medical device |
US9445784B2 (en) * | 2005-09-22 | 2016-09-20 | Boston Scientific Scimed, Inc | Intravascular ultrasound catheter |
US20080188793A1 (en) | 2007-02-06 | 2008-08-07 | Possis Medical, Inc. | Miniature flexible thrombectomy catheter |
US8012117B2 (en) * | 2007-02-06 | 2011-09-06 | Medrad, Inc. | Miniature flexible thrombectomy catheter |
US7729782B2 (en) * | 2005-11-15 | 2010-06-01 | Medtronic, Inc. | Delivery catheter |
US7647124B2 (en) * | 2005-11-15 | 2010-01-12 | Medtronic, Inc. | Delivery catheter |
US8162878B2 (en) * | 2005-12-05 | 2012-04-24 | Medrad, Inc. | Exhaust-pressure-operated balloon catheter system |
US11026822B2 (en) | 2006-01-13 | 2021-06-08 | C. R. Bard, Inc. | Stent delivery system |
US8808346B2 (en) | 2006-01-13 | 2014-08-19 | C. R. Bard, Inc. | Stent delivery system |
GB0615658D0 (en) | 2006-08-07 | 2006-09-13 | Angiomed Ag | Hand-held actuator device |
WO2008045877A2 (en) * | 2006-10-10 | 2008-04-17 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Electrode tip and ablation system |
US8926577B2 (en) | 2006-10-17 | 2015-01-06 | C. R. Bard, Inc. | Waste management system |
EP2476384B1 (en) * | 2006-11-22 | 2015-11-04 | Applied Medical Resources Corporation | Trocar cannula with atraumatic tip |
US8974418B2 (en) * | 2007-06-12 | 2015-03-10 | Boston Scientific Limited | Forwardly directed fluid jet crossing catheter |
US20080319386A1 (en) * | 2007-06-20 | 2008-12-25 | Possis Medical, Inc. | Forwardly directable fluid jet crossing catheter |
GB0713497D0 (en) | 2007-07-11 | 2007-08-22 | Angiomed Ag | Device for catheter sheath retraction |
US8777912B2 (en) * | 2007-07-22 | 2014-07-15 | C. R. Bard, Inc. | Waste management system |
US20090093794A1 (en) * | 2007-10-03 | 2009-04-09 | Tyco Healthcare Group Lp | Bolus tube assembly |
US8114144B2 (en) * | 2007-10-17 | 2012-02-14 | Abbott Cardiovascular Systems Inc. | Rapid-exchange retractable sheath self-expanding delivery system with incompressible inner member and flexible distal assembly |
WO2009079539A1 (en) * | 2007-12-17 | 2009-06-25 | Medrad, Inc. | Rheolytic thrombectomy catheter with self-inflation distal balloon |
US8167809B2 (en) | 2007-12-20 | 2012-05-01 | Silicon Valley Medical Instruments, Inc. | Imaging probe housing with fluid flushing |
EP2227285A4 (en) | 2007-12-26 | 2013-07-31 | Medrad Inc | Rheolytic thrombectomy catheter with self-inflating proximal balloon with drug infusion capabilities |
DE112009000700T5 (en) | 2008-03-20 | 2011-02-10 | Medrad, Inc. | Hydrodynamic direct current catheter system |
WO2009137712A1 (en) | 2008-05-07 | 2009-11-12 | Guided Delivery Systems Inc. | Deflectable guide |
ATE529151T1 (en) * | 2008-06-16 | 2011-11-15 | Greatbatch Ltd | BIDIRECTIONAL ASYMMETRIC STEERING SHELL |
US20100160862A1 (en) * | 2008-12-22 | 2010-06-24 | Cook Incorporated | Variable stiffness introducer sheath with transition zone |
US8652129B2 (en) | 2008-12-31 | 2014-02-18 | Medtronic Ardian Luxembourg S.A.R.L. | Apparatus, systems, and methods for achieving intravascular, thermally-induced renal neuromodulation |
US8808345B2 (en) * | 2008-12-31 | 2014-08-19 | Medtronic Ardian Luxembourg S.A.R.L. | Handle assemblies for intravascular treatment devices and associated systems and methods |
US20100198056A1 (en) * | 2009-01-20 | 2010-08-05 | Mariel Fabro | Diagnostic catheters, guide catheters, visualization devices and chord manipulation devices, and related kits and methods |
WO2010085456A1 (en) | 2009-01-20 | 2010-07-29 | Guided Delivery Systems Inc. | Anchor deployment devices and related methods |
DE102009013312A1 (en) * | 2009-03-18 | 2010-09-23 | Richard Wolf Gmbh | Ureterorenoscope |
US9168047B2 (en) * | 2009-04-02 | 2015-10-27 | John T. To | Minimally invasive discectomy |
US20100262079A1 (en) * | 2009-04-13 | 2010-10-14 | Tyco Healthcare Group Lp | Bendable veress needle assembly |
US8870863B2 (en) | 2010-04-26 | 2014-10-28 | Medtronic Ardian Luxembourg S.A.R.L. | Catheter apparatuses, systems, and methods for renal neuromodulation |
US8652033B2 (en) * | 2010-09-23 | 2014-02-18 | Karl Storz Endovision, Inc. | Video stylet with directable tip |
GB201017834D0 (en) | 2010-10-21 | 2010-12-01 | Angiomed Ag | System to deliver a bodily implant |
US9084610B2 (en) | 2010-10-21 | 2015-07-21 | Medtronic Ardian Luxembourg S.A.R.L. | Catheter apparatuses, systems, and methods for renal neuromodulation |
EP2632376B1 (en) | 2010-10-25 | 2020-02-12 | Medtronic Ardian Luxembourg S.à.r.l. | Catheter apparatuses having multi-electrode arrays for renal neuromodulation |
US9521990B2 (en) | 2011-05-11 | 2016-12-20 | Acist Medical Systems, Inc. | Variable-stiffness imaging window and production method thereof |
US20130023859A1 (en) * | 2011-07-21 | 2013-01-24 | Tyco Healthcare Group Lp | Articulating Links with Middle Link Control System |
GB201119734D0 (en) * | 2011-11-16 | 2011-12-28 | Gyrus Medical Ltd | Surgical instrument |
US10905851B2 (en) | 2012-03-23 | 2021-02-02 | Acist Medical Systems, Inc. | Catheter sheath and methods thereof |
US8888773B2 (en) | 2012-05-11 | 2014-11-18 | Medtronic Ardian Luxembourg S.A.R.L. | Multi-electrode catheter assemblies for renal neuromodulation and associated systems and methods |
US9044575B2 (en) | 2012-10-22 | 2015-06-02 | Medtronic Adrian Luxembourg S.a.r.l. | Catheters with enhanced flexibility and associated devices, systems, and methods |
WO2014066439A1 (en) | 2012-10-22 | 2014-05-01 | Medtronic Ardian Luxembourg Sarl | Catheters with enhanced flexibility |
US9066726B2 (en) | 2013-03-15 | 2015-06-30 | Medtronic Ardian Luxembourg S.A.R.L. | Multi-electrode apposition judgment using pressure elements |
US20140276605A1 (en) * | 2013-03-15 | 2014-09-18 | Furqan Tejani | Catheter for vascular interventions |
US9357984B2 (en) | 2013-04-23 | 2016-06-07 | Covidien Lp | Constant value gap stabilizer for articulating links |
EP2996754B1 (en) | 2013-05-18 | 2023-04-26 | Medtronic Ardian Luxembourg S.à.r.l. | Neuromodulation catheters with shafts for enhanced flexibility and control and associated devices and systems |
US20150126852A1 (en) * | 2013-11-01 | 2015-05-07 | Covidien Lp | Positioning catheter |
US11666309B2 (en) | 2013-12-19 | 2023-06-06 | Acist Medical Systems, Inc. | Catheter sheath system and method |
EP4059563B1 (en) | 2014-01-27 | 2023-09-27 | Medtronic Ireland Manufacturing Unlimited Company | Neuromodulation catheters having jacketed neuromodulation elements and related devices |
CN105960213B (en) | 2014-02-06 | 2020-07-07 | 圣犹达医疗用品心脏病学部门有限公司 | Elongate medical device including a beveled ring electrode and a variable shaft |
US10736690B2 (en) | 2014-04-24 | 2020-08-11 | Medtronic Ardian Luxembourg S.A.R.L. | Neuromodulation catheters and associated systems and methods |
EP3265004B1 (en) | 2015-03-05 | 2023-06-28 | Ancora Heart, Inc. | Devices of visualizing and determining depth of penetration in cardiac tissue |
US10583270B2 (en) | 2016-03-14 | 2020-03-10 | Covidien Lp | Compound curve navigation catheter |
US10531787B2 (en) * | 2016-07-28 | 2020-01-14 | Cook Medical Technologies Llc | Steerable multilumen catheter shaft |
EP3509471B1 (en) * | 2016-09-09 | 2021-06-30 | Entellus Medical, Inc. | Wireless endoscope |
US10898684B2 (en) * | 2016-09-23 | 2021-01-26 | Sanovas Intellectual Property, Llc | Non-buckling steerable catheter |
KR102010491B1 (en) * | 2017-04-03 | 2019-08-13 | 아이메디컴(주) | Steerable catheter |
AU2019218098A1 (en) * | 2018-02-12 | 2020-08-13 | 510 Kardiac Devices, Inc. | Improved steerable introducer sheath assembly |
US11707819B2 (en) | 2018-10-15 | 2023-07-25 | General Electric Company | Selectively flexible extension tool |
US11702955B2 (en) | 2019-01-14 | 2023-07-18 | General Electric Company | Component repair system and method |
US11692650B2 (en) | 2020-01-23 | 2023-07-04 | General Electric Company | Selectively flexible extension tool |
US11752622B2 (en) | 2020-01-23 | 2023-09-12 | General Electric Company | Extension tool having a plurality of links |
US11613003B2 (en) * | 2020-01-24 | 2023-03-28 | General Electric Company | Line assembly for an extension tool having a plurality of links |
US11628272B2 (en) * | 2020-02-05 | 2023-04-18 | Medtronic Vascular, Inc. | Modular catheter |
US11371437B2 (en) | 2020-03-10 | 2022-06-28 | Oliver Crispin Robotics Limited | Insertion tool |
US20230397929A1 (en) * | 2020-10-09 | 2023-12-14 | Scuola Superiore Di Studi Universitari E Di Perfezionamento Sant'anna | Device for endoscopically delivering a therapeutic substance |
US11654547B2 (en) | 2021-03-31 | 2023-05-23 | General Electric Company | Extension tool |
Family Cites Families (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US922985A (en) * | 1908-03-26 | 1909-05-25 | American Cystoscope Makers Inc | Endoscope. |
US3265200A (en) * | 1964-10-22 | 1966-08-09 | Gen Electric | Packaging device |
SE325986B (en) * | 1965-07-05 | 1970-07-13 | T Almen | |
US3470876A (en) * | 1966-09-28 | 1969-10-07 | John Barchilon | Dirigible catheter |
US3625200A (en) * | 1969-08-26 | 1971-12-07 | Us Catheter & Instr Corp | Controlled curvable tip member |
US3773034A (en) * | 1971-11-24 | 1973-11-20 | Itt Research Institute | Steerable catheter |
US3892228A (en) * | 1972-10-06 | 1975-07-01 | Olympus Optical Co | Apparatus for adjusting the flexing of the bending section of an endoscope |
US3948251A (en) * | 1972-10-25 | 1976-04-06 | Olympus Optical Co., Ltd. | Flexible tube endoscope |
JPS5582884A (en) * | 1978-12-19 | 1980-06-21 | Olympus Optical Co | Flexible tube and its manufacture |
JPS5586435A (en) * | 1978-12-22 | 1980-06-30 | Olympus Optical Co | Endoscope |
JPS55138434A (en) * | 1979-04-17 | 1980-10-29 | Olympus Optical Co | Hard endoscope |
US4515592A (en) * | 1980-05-13 | 1985-05-07 | Arrow International, Inc. | Catheter shield |
US4327723A (en) * | 1980-05-13 | 1982-05-04 | Arrow International, Inc. | Catheter shield |
US4483326A (en) * | 1981-04-21 | 1984-11-20 | Kabushiki Kaisha Medos Kenkyusho | Curvature control mechanism in endoscopes |
US4417886A (en) * | 1981-11-05 | 1983-11-29 | Arrow International, Inc. | Catheter introduction set |
JPS5993513U (en) * | 1982-12-14 | 1984-06-25 | オリンパス光学工業株式会社 | Transurethral prostate dissection device |
US4543090A (en) * | 1983-10-31 | 1985-09-24 | Mccoy William C | Steerable and aimable catheter |
US4758222A (en) * | 1985-05-03 | 1988-07-19 | Mccoy William C | Steerable and aimable catheter |
US4587972A (en) * | 1984-07-16 | 1986-05-13 | Morantte Jr Bernardo D | Device for diagnostic and therapeutic intravascular intervention |
US4580551A (en) * | 1984-11-02 | 1986-04-08 | Warner-Lambert Technologies, Inc. | Flexible plastic tube for endoscopes and the like |
US4577621A (en) * | 1984-12-03 | 1986-03-25 | Patel Jayendrakumar I | Endoscope having novel proximate and distal portions |
US4644960A (en) * | 1985-09-23 | 1987-02-24 | Arrow International, Inc. | Device for making electrical connection to an electrolyte, and system employing same |
JPS62139626A (en) * | 1985-12-13 | 1987-06-23 | オリンパス光学工業株式会社 | Flexible tube for endoscope |
US5061273A (en) * | 1989-06-01 | 1991-10-29 | Yock Paul G | Angioplasty apparatus facilitating rapid exchanges |
US4793326A (en) * | 1986-12-08 | 1988-12-27 | Olympus Optical Co., Ltd. | Endoscope having insertion end guide means |
DE3714141A1 (en) * | 1987-04-28 | 1988-11-17 | Storz Karl Gmbh & Co | FLEXIBLE TUBULAR ELEMENT |
US4748969A (en) * | 1987-05-07 | 1988-06-07 | Circon Corporation | Multi-lumen core deflecting endoscope |
US4745908A (en) * | 1987-05-08 | 1988-05-24 | Circon Corporation | Inspection instrument fexible shaft having deflection compensation means |
US4906230A (en) * | 1987-06-30 | 1990-03-06 | Baxter Travenol Laboratories, Inc. | Steerable catheter tip |
US4834710A (en) * | 1987-10-08 | 1989-05-30 | Arrow International Investment Corporation | Catheter shield and test structure |
US4893613A (en) * | 1987-11-25 | 1990-01-16 | Hake Lawrence W | Endoscope construction with means for controlling rigidity and curvature of flexible endoscope tube |
US4890602A (en) * | 1987-11-25 | 1990-01-02 | Hake Lawrence W | Endoscope construction with means for controlling rigidity and curvature of flexible endoscope tube |
US4815450A (en) * | 1988-02-01 | 1989-03-28 | Patel Jayendra I | Endoscope having variable flexibility |
DE3817915C2 (en) * | 1988-05-26 | 1997-08-28 | Storz Karl Gmbh & Co | Flexible endoscope |
US5004456A (en) * | 1989-03-10 | 1991-04-02 | Arrow International Investment Corporation | In-dwelling catheter |
US4911148A (en) * | 1989-03-14 | 1990-03-27 | Intramed Laboratories, Inc. | Deflectable-end endoscope with detachable flexible shaft assembly |
SE8902630L (en) * | 1989-07-31 | 1991-02-01 | Radi Medical Systems | CATS, CONTROL AND COMBINATION THEREOF |
JPH0358402U (en) * | 1989-10-13 | 1991-06-06 | ||
US5125906A (en) * | 1990-11-02 | 1992-06-30 | Arrow International Investment Corporation | Hand-held device for feeding a spring wire guide |
EP0489937B1 (en) * | 1990-12-07 | 1995-06-21 | Willy Rüsch Ag | Medical instrument with steerable tip |
US5267573A (en) * | 1992-11-13 | 1993-12-07 | Oakley, Inc. | Guidewire extender |
-
1992
- 1992-11-02 US US07/970,490 patent/US5399164A/en not_active Expired - Lifetime
-
1993
- 1993-04-06 WO PCT/US1993/003264 patent/WO1994009843A1/en not_active Application Discontinuation
- 1993-04-06 AU AU42795/93A patent/AU673361B2/en not_active Ceased
- 1993-04-06 CA CA002150905A patent/CA2150905A1/en not_active Abandoned
- 1993-04-06 EP EP03075997A patent/EP1334743A3/en not_active Ceased
- 1993-04-06 EP EP93912137A patent/EP0680355A1/en not_active Withdrawn
-
1994
- 1994-09-19 US US08/308,142 patent/US5624397A/en not_active Expired - Lifetime
-
1995
- 1995-01-13 US US08/372,641 patent/US5542924A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5399164A (en) | 1995-03-21 |
US5542924A (en) | 1996-08-06 |
AU4279593A (en) | 1994-05-24 |
US5624397A (en) | 1997-04-29 |
EP1334743A2 (en) | 2003-08-13 |
AU673361B2 (en) | 1996-11-07 |
EP0680355A1 (en) | 1995-11-08 |
EP1334743A3 (en) | 2004-01-02 |
WO1994009843A1 (en) | 1994-05-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5399164A (en) | Catheter having a multiple durometer | |
US5497785A (en) | Catheter advancing guidewire and method for making same | |
US5372587A (en) | Steerable medical device | |
EP1942975B1 (en) | Steerable catheter devices and methods of articulating catheter devices | |
US5820592A (en) | Angiographic and/or guide catheter | |
US5498239A (en) | Catheter placement by pressurizable tubular guiding core | |
US5318526A (en) | Flexible endoscope with hypotube activating wire support | |
US5114414A (en) | Low profile steerable catheter | |
US5292305A (en) | Double-lumen angioscopy catheter | |
US5718680A (en) | Catheter system with push rod for advancement of balloon along guidewire | |
CN106455939B (en) | Mechanism for holding small drive wire on spool | |
US4960411A (en) | Low profile sterrable soft-tip catheter | |
EP0377656B1 (en) | Catheter for balloon angioplasty | |
EP0361314B1 (en) | Guiding catheter with controllable distal tip | |
EP0452402B1 (en) | Steerable medical device | |
CA1266215A (en) | Steerable catheter | |
US6146339A (en) | Guide wire with operator controllable tip stiffness | |
US8608649B2 (en) | In-vivo visualization system | |
US20070282358A1 (en) | Steerable medical instrument | |
JPH0444555B2 (en) | ||
US11103679B2 (en) | Steerable catheters and methods for making them | |
US5388590A (en) | Catheter exchange device | |
JP2022512850A (en) | Support structure for medical equipment and its manufacturing method | |
JPH0329669A (en) | Therapeutic catheter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Discontinued |