CA2632479A1 - Obturator tips - Google Patents
Obturator tips Download PDFInfo
- Publication number
- CA2632479A1 CA2632479A1 CA002632479A CA2632479A CA2632479A1 CA 2632479 A1 CA2632479 A1 CA 2632479A1 CA 002632479 A CA002632479 A CA 002632479A CA 2632479 A CA2632479 A CA 2632479A CA 2632479 A1 CA2632479 A1 CA 2632479A1
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- CA
- Canada
- Prior art keywords
- surgical instrument
- dilating
- dilating member
- sides
- vertices
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
- A61B2017/3456—Details of tips blunt
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
- A61B2017/346—Details of tips with wings
Abstract
The present disclosure is directed towards a surgical dilating instrument for use in conjunction with a surgical portal device. The surgical dilating instrument disclosed herein includes an inventive dilating tip with a substantially polygonal cross-section that incorporates one or more raised atraumatic edge members.
Description
OBTURATOR TIPS
BACKGROUND
1. Technical Field [0001] The present disclosure is directed towards an instrument fur use in surzical procedures. More particularly, the present disclosure relates to an obturator or dilating device that includes an inventive dilatinQ tip for use with a suraical portal or access assembly, such as a trocar or cannula assembly, during endoscopic and laparoscopic procedures.
BACKGROUND
1. Technical Field [0001] The present disclosure is directed towards an instrument fur use in surzical procedures. More particularly, the present disclosure relates to an obturator or dilating device that includes an inventive dilatinQ tip for use with a suraical portal or access assembly, such as a trocar or cannula assembly, during endoscopic and laparoscopic procedures.
2. Background of Related Art [00021 Generally, endoscopic and laparoscopic surgical procedures are performed through surgical access devices that include narrow tubular sleeves or cannulas in an insufflated workspace inserted percutaneously into a patient through a small incision, puncture, or access point.
[00031 Initially, the incision or access point created is the tissue is very small so as to minimize both tissue trauma and the invasive nature of the procedure. However, to facilitate the insertion of the access device into the patient's tissue, it is often necessary to enlarge or dilate the access point using a surgical instrument such as an obturator, stylet, or trocar. Given the design of known surgical instrument tips, substantial force may be required to force the instrument through the access point and thereby dilate the opening, potentially resulting in damage or trauma to the tissue surrounding the access point as well as the internal surgical site.
Accordingly, there exists a need in the art for a surgical instrument that includes an improved tip which facilitates the dilation of a percutaneous access point and curtails the risk of tissue damage.
SUMMARY
The present disclosure relates to improvements in accessing body tissue during endoscopic procedures, laparoscopic procedures, and the like. In one embodiment, a surgical instrument for use with a surgical portal apparatus is disclosed that includes a dilating member disposed at a distal end of an elongate shaft that defines a longitudinal axis. The dilating member has an outer surface that includes at least one atraumatic edge member extending outwardly therefrom and proximally from a distal, substantially tip. In one embodiment, that at least one edge member extends at least partially along the elongate shaft of the instrument. In another embodiment, the dilating member has a substantially tapered profile.
The dilating member has a substantially polygonal cross-section that may be substantially triangular in one embodiment. In additional embodiments, the substantially polygonal cross-section includes at least two sides that are in substantially parallel relation, which may include a first set of sides and at least one additional set of sides, e.g. a second set of sides that define a plurality of vertices. The plurality of vertices may be either substantially angular or substantially rounded in configuration and may include at least one vertex that is less than or equal to 90 .
The elongate shaft of the instrument defines a centerpoint that is either substantially aligned with, or substantially offset from, the tip of the dilating member.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] The accompanying drawings, which are incorporated in, and constitute a part of this specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above and the detailed description of the embodiment(s) given below, serve to explain the principles of the disclosure, wherein:
[0005] FIG. 1 is a side perspective view of a surgical portal system in conjunction with a dilating instrument in accordance with the principles of the present disclosure;
[0006] FIG. 2 is a side perspective view of the dilating instrument of FIG. 1;
[0007] FIG. 3 is a front view of the dilating instrument of FIG. 1;
[0008] FIG. 4 is a side cross-sectional view of the dilating instrument of FIG. 1;
[0009] FIG. 5 is a side cross-sectional view of a dilating member disposed at a distal end of the dilating instrument of FIG. 1;
[00031 Initially, the incision or access point created is the tissue is very small so as to minimize both tissue trauma and the invasive nature of the procedure. However, to facilitate the insertion of the access device into the patient's tissue, it is often necessary to enlarge or dilate the access point using a surgical instrument such as an obturator, stylet, or trocar. Given the design of known surgical instrument tips, substantial force may be required to force the instrument through the access point and thereby dilate the opening, potentially resulting in damage or trauma to the tissue surrounding the access point as well as the internal surgical site.
Accordingly, there exists a need in the art for a surgical instrument that includes an improved tip which facilitates the dilation of a percutaneous access point and curtails the risk of tissue damage.
SUMMARY
The present disclosure relates to improvements in accessing body tissue during endoscopic procedures, laparoscopic procedures, and the like. In one embodiment, a surgical instrument for use with a surgical portal apparatus is disclosed that includes a dilating member disposed at a distal end of an elongate shaft that defines a longitudinal axis. The dilating member has an outer surface that includes at least one atraumatic edge member extending outwardly therefrom and proximally from a distal, substantially tip. In one embodiment, that at least one edge member extends at least partially along the elongate shaft of the instrument. In another embodiment, the dilating member has a substantially tapered profile.
The dilating member has a substantially polygonal cross-section that may be substantially triangular in one embodiment. In additional embodiments, the substantially polygonal cross-section includes at least two sides that are in substantially parallel relation, which may include a first set of sides and at least one additional set of sides, e.g. a second set of sides that define a plurality of vertices. The plurality of vertices may be either substantially angular or substantially rounded in configuration and may include at least one vertex that is less than or equal to 90 .
The elongate shaft of the instrument defines a centerpoint that is either substantially aligned with, or substantially offset from, the tip of the dilating member.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] The accompanying drawings, which are incorporated in, and constitute a part of this specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above and the detailed description of the embodiment(s) given below, serve to explain the principles of the disclosure, wherein:
[0005] FIG. 1 is a side perspective view of a surgical portal system in conjunction with a dilating instrument in accordance with the principles of the present disclosure;
[0006] FIG. 2 is a side perspective view of the dilating instrument of FIG. 1;
[0007] FIG. 3 is a front view of the dilating instrument of FIG. 1;
[0008] FIG. 4 is a side cross-sectional view of the dilating instrument of FIG. 1;
[0009] FIG. 5 is a side cross-sectional view of a dilating member disposed at a distal end of the dilating instrument of FIG. 1;
[0010] FIG. 6 is a longitudinal cross-sectional view of the dilating member taken along lines 6-6 of FIG. 5;
[0011] FIG. 7 is a front cross-sectional view of the dilating member taken along lines 7-7 of FIG. 5;
[0012] FIG. 8 is a front cross-sectional view of the dilating member taken along lines 8-8 of FIG. 5;
[0013] FIG. 9 is a front cross-sectional view of the dilating member taken along lines 9-9 of FIG. 5;
[0014] FIG. 10 is a front perspective view of the dilating member;
[0015] FIG. 11 is a side perspective view of an alternate embodiment of the dilating member;
100161 FIG. 12 is a side perspective view of the dilating member of FIG. 11;
[0017] FIG. 13 is a side cross-sectional view of the dilating member of FIG.
11;
[0018] FIG. 14 is a front view of the dilating member taken along lines 14-14 of FIG.
13;
[0019] FIG. 15 is a front view of the dilating member taken along lines 15-15 of FIG.
13;
[0011] FIG. 7 is a front cross-sectional view of the dilating member taken along lines 7-7 of FIG. 5;
[0012] FIG. 8 is a front cross-sectional view of the dilating member taken along lines 8-8 of FIG. 5;
[0013] FIG. 9 is a front cross-sectional view of the dilating member taken along lines 9-9 of FIG. 5;
[0014] FIG. 10 is a front perspective view of the dilating member;
[0015] FIG. 11 is a side perspective view of an alternate embodiment of the dilating member;
100161 FIG. 12 is a side perspective view of the dilating member of FIG. 11;
[0017] FIG. 13 is a side cross-sectional view of the dilating member of FIG.
11;
[0018] FIG. 14 is a front view of the dilating member taken along lines 14-14 of FIG.
13;
[0019] FIG. 15 is a front view of the dilating member taken along lines 15-15 of FIG.
13;
[0020] FIG. 16 is a longitudinal cross-sectional view of the dilating member taken along lines 16-16 of FIG. 13;
[0021] FIG. 17 is a front view of the dilating member of FIG. 11;
[0022] FIG. 18 is a side perspective view of another embodiment of the dilating member;
[0023] FIG. 19 is a side perspective view of the dilating member of FIG. 18;
[0024] FIG. 20 is a side cross-sectional view of the dilating member of FIG.
18;
100251 FIG. 21 is a front view of the dilating member taken along lines 21-21 of FIG.
20;
[0026] FIG. 22 is a front view of the dilating member taken along lines 22-22 of FIG.
20;
[0027] FIG. 23 is a longitudinal cross-sectional view of the dilating member taken along lines 23-23 of FIG. 20;
[0028] FIG. 24 is a front view of the dilating member of FIG. 18;
[00291 FIG. 25 is a front perspective view of another embodiment of the dilating member;
[0030] FIG. 26 is a side perspective view of the dilating member of FIG. 25;
[0031] FIG. 27 is a side cross-sectional view of the dilating member of FIG.
25;
[0032] FIG. 28 is a front view of the dilating member taken along lines 28-28 of FIG.
27;
[0033] FIG. 29 is a front view of the dilating member taken along lines 29-29 of FIG.
27;
[0034] FIG. 30 is a longitudinal cross-sectional view of the dilating member taken along lines 30-30 of FIG. 27;
[0035] FIG. 31 is a front view of the dilating member of FIG. 25; and [0036] FIG. 32 is a side perspective view of another embodiment of the dilating member incorporating at least one transparent window and defining a lumen therethrough configured and dimensioned for the internal receipt of an endoscope.
DESCRIPTION OF EMBODIMENTS
[0037] Specific embodiments of the presently disclosed apparatus will now be described in detail with reference to the foregoing figures, wherein like reference numerals identify similar or identical elements. In the figures and in the description which follows, the term "proximal", as is traditional will refer to the end of the apparatus or instrument of the present disclosure which is closest to the clinician, while the term "distal" will refer to the end of the device or instrument which is furthest from the clinician.
100381 Referring now to the drawings, FIG. 1 illustrates a surgical portal or access apparatus 10 and a dilating surgical instrument, member, or obturator 100 in accordance with the present disclosure.
[0039] At a proximal end, access apparatus 10 includes a housing 12 configured for the internal receipt of a seal or valve, as is known in the art. Extending distally from housing 12 is a shaft or cannula 16 having respective proximal and distal ends 18, 20 and defining a lumen 22 therethrough. Housing 12, distal end 20 of cannula 16, and the lumen 22 defined theretlirough are each dimensioned such that the dilating instrument 100 may pass therethrough.
[0040] As seen in FIG. 2, dilating instrument 100 has a proximal end 102, a distal end 104, and a shaft 106 disposed therebetween. At proximal end 102, dilating instrument 100 is coupled to a gripping member 108 that is configured and dimensioned to facilitate gripping by a clinician, operator, or surgeon. In one embodiment, the gripping member may include a cushioning member or portion that is configured to at least partially absorb the force applied to the gripping member by the clinician, as well as the impact of that force upon the clinician's hand, during the distal advancement of the dilating instrument through a patient's tissue. The cushioning member may be formed of any at material that is at least semi-resilient in nature including, but not limited to, polymers.
100411 The coupling between proximal end 102 and gripping member 108 may be either fixed or movable, e, g, pivotable, and may be either permanent or releasable.
[00421 Shaft 106 of dilating instrument 100 is an elongate member defining a diameter "171" and a length "Li", Diameter "D1", is of a suitable dimension such that shaft 106 does not significantly deform o- buckle under the influence of the force applied to thz gripping member by the clinician, as discussed above. "D1" may be any diameter substantially within the range of approYimately Smm to approximately 15mm, as is conventional in the art.
Lep_gth "LI" is of any dimension suitabl.e for the intended purpose of accessing a patient's tissue through the cannula of a surgical access apparatus. Disposed at distal end 104 of dilating instrument 100 is a dilating member 110.
[00431 Refelzing now to FIGS. 2-31, various embodiments of the dilating member will be discussed in detail. With respect to FIGS. 2-10 in particular, dilating member 110 has a proximal end 112, a distal end or tip 114, and an outer surface 116 that extends therebetween.
Dilating member 110 may be formed of any suitable biocompatible material, including but not limited to stainless steel, a biocompatible polymeric material all alike, and maybe either a solid member or at least partially hollow.
[0044) Proximal end 112 of dilating member 110 is associated with shaft 106.
In one embodiment, shaft 106 and proximal end 112 of dilating member 110 are integrally foimed such that dilating member 110 and shaft 106 are fixedly connected. In this embodiment, shaft 106 and proximal end 112 of dilating member 110 may be connected in any suitable manner including, but not limited to, the use of adhesives, monolithic formation, or welding. In an alternate embodiment, shaft 106 and proximal end 112 of dilating member 110 may be releasably connected through the use of any suitable structural mechanism, including but not limited to, a screw-type or interference-fit arrangement.
[0045] Outer surface 116 of dilating member 110 includes at least one atraumatic edge member 118 that extends outwardly therefrom. Edge member or members 118 extend proximally from tip 114 to proximal end 112 of dilating member 110 along the contour of outer surface 116. In one embodiment, edge member or members 118 may extend beyond proximal end 112 of dilating member 110 and at least partially along shaft 106 of dilating instrument 100.
Edge member or members 118 are substantially blunt, smooth protrusions from outer surface 116 that define at least one recessed portion 120 therebetween. Edge member or members 118 serve to lift the surrounding tissue (not shown) away from the at least one recessed portion 120 of the outer surface 116, thereby decreasing the surface area of the dilating member 110 that is in contact with the patient's tissue (not shown). By decreasing this surface area, any adhesion between the tissue (not shown) and the dilating member 110 that may otherwise occur during the insertion and distal advancement of dilating instrument 100 is substantially minimized.
[0046] In the embodiment shown in FIGS. 2-10, dilating member 110 includes three respective edge members 118-118" that define three respective recessed portions 120-120". In additional embodiments, as seen in FIGS. 11-24, dilating members 200 and 300 include four edge members 218-218"' and 318-318"', respectively. The present disclosure contemplates that dilating member 110 may include any number of edge members 118 suitable for the intended purpose of facilitating the distal advancement of the dilating instrument 100 and the dilation of a percutaneous access point.
[00471 Although edge members 118 of dilating member 110 are depicted as substantially blunt, the inclusion of one or more substantially incisive or sharp edge members, either in addition to or in place of the blunt edge members disclose above, are within the scope of the present disclosure.
[0048] In one aspect of the present disclosure, the at least one recessed portion 120 of outer surface 116 of dilating member 110 may include a plurality of indentations, scallops, or the like. These indentations further limit the surface area of the dilating member 110 that may contact the patient's tissue during use, thereby further minimizing any adhesion that may occur during the distal advancement of the dilating instrument 100 through a patient's tissue.
[0049] In one or more embodiments, the dilating member has a transverse cross-section 122 that is substantially polygonal, in that the cross-section incorporates a plurality of sides that may demonstrate a slight curvature. In the embodiment seen in FIGS. 1-8, the substantially polygonal cross-section 122 of dilating member 110 is substantially triangular, as cross-section 122 includes three sides 124-124". As seen in FIGS. 6-8, sides 124-124" of triangular cross-section 122 defines three vertices 126-126". Vertices 126-126" are substantially angular or pointed in configuration, but vertices that are substantially rounded or curved are within the scope of the present disclosure. By way of example, in one embodiment, as seen in FIGS. 24-25, dilating member 400 has a substantially triangular cross section 422 defining three vertices 426-426" that have a substantially rounded configuration.
[0050] In the embodiment seen in FIGS. 11-17, dilating member 210 may also have a substantially polygonal cross section 222 that includes a plurality of sides 224-224"' in substantially parallel relation. In particular, dilating member 210 includes a first pair of sides 224a, which includes substantially parallel sides 224 and 224", and a second pair of sides 224b, which includes substantially parallel sides 224' and 224"'. The points at which the first pair of sides 224a and the second pair of sides 224b intersect define four vertices 226-226"'. As seen in FIGS. 11-12 and 14-17, vertices 226-226"' are substantially rounded in configuration.
However, an embodiment including four angular or pointed vertices is also within the scope of the present disclosure. Vertices 226-226"' define four angles a which are each substantially equivalent to 90 such that polygonal cross-section 222 is substantially square in configuration.
In an alternate embodiment, as seen in FIGS. 18-24, vertices 326-3261" define a first pair of angles (3 which are less than 90 and a second pair of angles 0 which are greater than 90 such that polygonal cross-section 322 resembles an elongated "diamond".
[0051] In additional embodiments, the dilating member 210 may have a substantially polygonal cross-section 222 that includes any suitable number of sides 224, including but not limited to five or six. In these additional embodiments, the substantially polygonal cross-section 222 may be substantially pentagonal, hexagonal, etc., in configuration.
[0052] Referring back to the embodiment of FIGS. 1-8, dilating member 110 defines a diameter "D2" and a length "L2". Diameter "D2" decreases over length "LZ"such that dilating member 110 exhibits a substantially tapered profile "P". Diameter "D2"
decreases at an intermittent or variable rate over length "L2" such that the profile "P" of dilating member 110 includes one or more concave portions 128. In an alternate embodiment, the diameter of dilating member 110 may be constantly or consistently varied over its length such that dilating member 110 may exhibit a substantially conical profile.
[0053] As discussed above, dilating member 110 includes a tip 114. Tip 114 may be substantially blunt such that dilating instrument 110 substantially minimizes any tissue trauma during the insertion and the distal advancement thereof. An embodiment that incorporates a substantially incisive tip is also within the scope of the present disclosure, however. By incorporating an incisive tip, instrument 100 would obviate the need for an initial incision or puncture in the patient's tissue with a separate implement. As seen in FIGS. 1-8, tip 114 is substantially aligned with a centerpoint "C" of dilating member 110. In an alternate embodiment, however, tip 114 may be substantially offset from centerpoint "C".
[0054] Referring now to FIG. 32, dilating member 510 may include one or more transparent portions 528 such that light is permitted to pass into dilating instrument 500.
Transparent portions 528 may be formed of any suitable biocompatible material that is at least translucent. In this embodiment, dilating instrument 500 defines a lumen or cavity 530 at least partially therethrough that is configured and dimensioned to receive an endoscope or other suitable viewing instrument 600 such that a clinician may view a patient's tissue (not shown) throuUh endoscope 600 and the transparent portions 528 of dilating, instrument 500 during the insertion and distal ad~ancenient thereof. Further information re;=ardin, the use of optical or transparent materials in surQical access devices may be obtained through reference to commonly assiizned U.S. Paterit No. 6,685,630 to Sauer, et al.
[005-~] While the a'oove is a complete description of the embodim,:nts of the present disclosure, various alternatives, modifications and equivalents may be used.
Therefore, the above description should not be construed as limitina. but rather as illustrative of the principles of the disclosur;, n:ade herein. Those skilled in the art will envision other modifications Ntithin the scope and spirit of the claims appended hereto.
[0021] FIG. 17 is a front view of the dilating member of FIG. 11;
[0022] FIG. 18 is a side perspective view of another embodiment of the dilating member;
[0023] FIG. 19 is a side perspective view of the dilating member of FIG. 18;
[0024] FIG. 20 is a side cross-sectional view of the dilating member of FIG.
18;
100251 FIG. 21 is a front view of the dilating member taken along lines 21-21 of FIG.
20;
[0026] FIG. 22 is a front view of the dilating member taken along lines 22-22 of FIG.
20;
[0027] FIG. 23 is a longitudinal cross-sectional view of the dilating member taken along lines 23-23 of FIG. 20;
[0028] FIG. 24 is a front view of the dilating member of FIG. 18;
[00291 FIG. 25 is a front perspective view of another embodiment of the dilating member;
[0030] FIG. 26 is a side perspective view of the dilating member of FIG. 25;
[0031] FIG. 27 is a side cross-sectional view of the dilating member of FIG.
25;
[0032] FIG. 28 is a front view of the dilating member taken along lines 28-28 of FIG.
27;
[0033] FIG. 29 is a front view of the dilating member taken along lines 29-29 of FIG.
27;
[0034] FIG. 30 is a longitudinal cross-sectional view of the dilating member taken along lines 30-30 of FIG. 27;
[0035] FIG. 31 is a front view of the dilating member of FIG. 25; and [0036] FIG. 32 is a side perspective view of another embodiment of the dilating member incorporating at least one transparent window and defining a lumen therethrough configured and dimensioned for the internal receipt of an endoscope.
DESCRIPTION OF EMBODIMENTS
[0037] Specific embodiments of the presently disclosed apparatus will now be described in detail with reference to the foregoing figures, wherein like reference numerals identify similar or identical elements. In the figures and in the description which follows, the term "proximal", as is traditional will refer to the end of the apparatus or instrument of the present disclosure which is closest to the clinician, while the term "distal" will refer to the end of the device or instrument which is furthest from the clinician.
100381 Referring now to the drawings, FIG. 1 illustrates a surgical portal or access apparatus 10 and a dilating surgical instrument, member, or obturator 100 in accordance with the present disclosure.
[0039] At a proximal end, access apparatus 10 includes a housing 12 configured for the internal receipt of a seal or valve, as is known in the art. Extending distally from housing 12 is a shaft or cannula 16 having respective proximal and distal ends 18, 20 and defining a lumen 22 therethrough. Housing 12, distal end 20 of cannula 16, and the lumen 22 defined theretlirough are each dimensioned such that the dilating instrument 100 may pass therethrough.
[0040] As seen in FIG. 2, dilating instrument 100 has a proximal end 102, a distal end 104, and a shaft 106 disposed therebetween. At proximal end 102, dilating instrument 100 is coupled to a gripping member 108 that is configured and dimensioned to facilitate gripping by a clinician, operator, or surgeon. In one embodiment, the gripping member may include a cushioning member or portion that is configured to at least partially absorb the force applied to the gripping member by the clinician, as well as the impact of that force upon the clinician's hand, during the distal advancement of the dilating instrument through a patient's tissue. The cushioning member may be formed of any at material that is at least semi-resilient in nature including, but not limited to, polymers.
100411 The coupling between proximal end 102 and gripping member 108 may be either fixed or movable, e, g, pivotable, and may be either permanent or releasable.
[00421 Shaft 106 of dilating instrument 100 is an elongate member defining a diameter "171" and a length "Li", Diameter "D1", is of a suitable dimension such that shaft 106 does not significantly deform o- buckle under the influence of the force applied to thz gripping member by the clinician, as discussed above. "D1" may be any diameter substantially within the range of approYimately Smm to approximately 15mm, as is conventional in the art.
Lep_gth "LI" is of any dimension suitabl.e for the intended purpose of accessing a patient's tissue through the cannula of a surgical access apparatus. Disposed at distal end 104 of dilating instrument 100 is a dilating member 110.
[00431 Refelzing now to FIGS. 2-31, various embodiments of the dilating member will be discussed in detail. With respect to FIGS. 2-10 in particular, dilating member 110 has a proximal end 112, a distal end or tip 114, and an outer surface 116 that extends therebetween.
Dilating member 110 may be formed of any suitable biocompatible material, including but not limited to stainless steel, a biocompatible polymeric material all alike, and maybe either a solid member or at least partially hollow.
[0044) Proximal end 112 of dilating member 110 is associated with shaft 106.
In one embodiment, shaft 106 and proximal end 112 of dilating member 110 are integrally foimed such that dilating member 110 and shaft 106 are fixedly connected. In this embodiment, shaft 106 and proximal end 112 of dilating member 110 may be connected in any suitable manner including, but not limited to, the use of adhesives, monolithic formation, or welding. In an alternate embodiment, shaft 106 and proximal end 112 of dilating member 110 may be releasably connected through the use of any suitable structural mechanism, including but not limited to, a screw-type or interference-fit arrangement.
[0045] Outer surface 116 of dilating member 110 includes at least one atraumatic edge member 118 that extends outwardly therefrom. Edge member or members 118 extend proximally from tip 114 to proximal end 112 of dilating member 110 along the contour of outer surface 116. In one embodiment, edge member or members 118 may extend beyond proximal end 112 of dilating member 110 and at least partially along shaft 106 of dilating instrument 100.
Edge member or members 118 are substantially blunt, smooth protrusions from outer surface 116 that define at least one recessed portion 120 therebetween. Edge member or members 118 serve to lift the surrounding tissue (not shown) away from the at least one recessed portion 120 of the outer surface 116, thereby decreasing the surface area of the dilating member 110 that is in contact with the patient's tissue (not shown). By decreasing this surface area, any adhesion between the tissue (not shown) and the dilating member 110 that may otherwise occur during the insertion and distal advancement of dilating instrument 100 is substantially minimized.
[0046] In the embodiment shown in FIGS. 2-10, dilating member 110 includes three respective edge members 118-118" that define three respective recessed portions 120-120". In additional embodiments, as seen in FIGS. 11-24, dilating members 200 and 300 include four edge members 218-218"' and 318-318"', respectively. The present disclosure contemplates that dilating member 110 may include any number of edge members 118 suitable for the intended purpose of facilitating the distal advancement of the dilating instrument 100 and the dilation of a percutaneous access point.
[00471 Although edge members 118 of dilating member 110 are depicted as substantially blunt, the inclusion of one or more substantially incisive or sharp edge members, either in addition to or in place of the blunt edge members disclose above, are within the scope of the present disclosure.
[0048] In one aspect of the present disclosure, the at least one recessed portion 120 of outer surface 116 of dilating member 110 may include a plurality of indentations, scallops, or the like. These indentations further limit the surface area of the dilating member 110 that may contact the patient's tissue during use, thereby further minimizing any adhesion that may occur during the distal advancement of the dilating instrument 100 through a patient's tissue.
[0049] In one or more embodiments, the dilating member has a transverse cross-section 122 that is substantially polygonal, in that the cross-section incorporates a plurality of sides that may demonstrate a slight curvature. In the embodiment seen in FIGS. 1-8, the substantially polygonal cross-section 122 of dilating member 110 is substantially triangular, as cross-section 122 includes three sides 124-124". As seen in FIGS. 6-8, sides 124-124" of triangular cross-section 122 defines three vertices 126-126". Vertices 126-126" are substantially angular or pointed in configuration, but vertices that are substantially rounded or curved are within the scope of the present disclosure. By way of example, in one embodiment, as seen in FIGS. 24-25, dilating member 400 has a substantially triangular cross section 422 defining three vertices 426-426" that have a substantially rounded configuration.
[0050] In the embodiment seen in FIGS. 11-17, dilating member 210 may also have a substantially polygonal cross section 222 that includes a plurality of sides 224-224"' in substantially parallel relation. In particular, dilating member 210 includes a first pair of sides 224a, which includes substantially parallel sides 224 and 224", and a second pair of sides 224b, which includes substantially parallel sides 224' and 224"'. The points at which the first pair of sides 224a and the second pair of sides 224b intersect define four vertices 226-226"'. As seen in FIGS. 11-12 and 14-17, vertices 226-226"' are substantially rounded in configuration.
However, an embodiment including four angular or pointed vertices is also within the scope of the present disclosure. Vertices 226-226"' define four angles a which are each substantially equivalent to 90 such that polygonal cross-section 222 is substantially square in configuration.
In an alternate embodiment, as seen in FIGS. 18-24, vertices 326-3261" define a first pair of angles (3 which are less than 90 and a second pair of angles 0 which are greater than 90 such that polygonal cross-section 322 resembles an elongated "diamond".
[0051] In additional embodiments, the dilating member 210 may have a substantially polygonal cross-section 222 that includes any suitable number of sides 224, including but not limited to five or six. In these additional embodiments, the substantially polygonal cross-section 222 may be substantially pentagonal, hexagonal, etc., in configuration.
[0052] Referring back to the embodiment of FIGS. 1-8, dilating member 110 defines a diameter "D2" and a length "L2". Diameter "D2" decreases over length "LZ"such that dilating member 110 exhibits a substantially tapered profile "P". Diameter "D2"
decreases at an intermittent or variable rate over length "L2" such that the profile "P" of dilating member 110 includes one or more concave portions 128. In an alternate embodiment, the diameter of dilating member 110 may be constantly or consistently varied over its length such that dilating member 110 may exhibit a substantially conical profile.
[0053] As discussed above, dilating member 110 includes a tip 114. Tip 114 may be substantially blunt such that dilating instrument 110 substantially minimizes any tissue trauma during the insertion and the distal advancement thereof. An embodiment that incorporates a substantially incisive tip is also within the scope of the present disclosure, however. By incorporating an incisive tip, instrument 100 would obviate the need for an initial incision or puncture in the patient's tissue with a separate implement. As seen in FIGS. 1-8, tip 114 is substantially aligned with a centerpoint "C" of dilating member 110. In an alternate embodiment, however, tip 114 may be substantially offset from centerpoint "C".
[0054] Referring now to FIG. 32, dilating member 510 may include one or more transparent portions 528 such that light is permitted to pass into dilating instrument 500.
Transparent portions 528 may be formed of any suitable biocompatible material that is at least translucent. In this embodiment, dilating instrument 500 defines a lumen or cavity 530 at least partially therethrough that is configured and dimensioned to receive an endoscope or other suitable viewing instrument 600 such that a clinician may view a patient's tissue (not shown) throuUh endoscope 600 and the transparent portions 528 of dilating, instrument 500 during the insertion and distal ad~ancenient thereof. Further information re;=ardin, the use of optical or transparent materials in surQical access devices may be obtained through reference to commonly assiizned U.S. Paterit No. 6,685,630 to Sauer, et al.
[005-~] While the a'oove is a complete description of the embodim,:nts of the present disclosure, various alternatives, modifications and equivalents may be used.
Therefore, the above description should not be construed as limitina. but rather as illustrative of the principles of the disclosur;, n:ade herein. Those skilled in the art will envision other modifications Ntithin the scope and spirit of the claims appended hereto.
Claims (16)
1. A surgical instrument for use with a surgical portal apparatus comprising:
an elongate shaft having proximal and distal ends and defining a longitudinal axis;
and a dilating member disposed at the distal end of the elongate shaft, the dilating member having an outer surface that includes at least one atraumatic edge member, the at least one atraumatic edge member extending outwardly from the outer surface and proximally from a tip of the dilating member, wherein the dilating member has a substantially polygonal cross-section.
an elongate shaft having proximal and distal ends and defining a longitudinal axis;
and a dilating member disposed at the distal end of the elongate shaft, the dilating member having an outer surface that includes at least one atraumatic edge member, the at least one atraumatic edge member extending outwardly from the outer surface and proximally from a tip of the dilating member, wherein the dilating member has a substantially polygonal cross-section.
2. The surgical instrument of claim 1, wherein the substantially polygonal cross-section is substantially triangular.
3. The surgical instrument of claim 1, wherein the substantially polygonal cross-section includes at least two sides that are in substantially parallel relation.
4. The surgical instrument of claim 3, wherein the at least two sides include a first set of sides and at least one additional set of sides.
5. The surgical instrument of claim 4, wherein the first set of sides and the at least one additional set of sides define a plurality of vertices.
6. The surgical instrument of claim 5, wherein the plurality of vertices includes at least one vertex that is less than 90°.
7. The surgical instrument of claim 5, wherein the plurality of vertices includes at least one vertex that is equal to 90°.
8. The surgical instrument of claim 4, wherein the at least one additional set of sides comprises a second set of sides.
9. The surgical instrument of claim 5, wherein the plurality of vertices are substantially angular in configuration.
10. The surgical instrument of claim 5, wherein the plurality of vertices are substantially rounded in configuration.
11. The surgical instrument of claim 1, wherein the elongate shaft defines a centerpoint.
12. The surgical instrument of claim 11, wherein the tip of the dilating member is substantially aligned with the centerpoint.
13. The surgical instrument of claim 11, wherein the tip of the dilating member is substantially offset with respect to the centerpoint.
14. The surgical instrument of claim 1, wherein the at least one edge member extends at least partially along the elongate shaft.
15. The surgical instrument of claim 1, wherein the dilating member has a substantially tapered profile.
16. The surgical instrument of claim 1, wherein the tip of the dilating member is substantially blunt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US93281107P | 2007-06-01 | 2007-06-01 | |
US60/932,811 | 2007-06-01 |
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CA2632479A1 true CA2632479A1 (en) | 2008-12-01 |
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Family Applications (1)
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CA002632479A Abandoned CA2632479A1 (en) | 2007-06-01 | 2008-05-29 | Obturator tips |
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US (1) | US9028521B2 (en) |
EP (2) | EP2380512B1 (en) |
JP (2) | JP5420857B2 (en) |
AU (1) | AU2008202266B2 (en) |
CA (1) | CA2632479A1 (en) |
ES (1) | ES2375241T3 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008076340A2 (en) | 2006-12-15 | 2008-06-26 | Tyco Healthcare Group Lp | Trocar assembly with obturator design |
IT1395219B1 (en) * | 2009-05-19 | 2012-09-05 | Ab Medica Spa | SHUTTER FOR TROCAR AND ITS TROCAR. |
US8979883B2 (en) * | 2009-12-17 | 2015-03-17 | Covidien Lp | Obturator tip |
US8961552B2 (en) | 2010-09-21 | 2015-02-24 | Covidien Lp | Bladeless obturators and bladeless obturator members |
CA3052018A1 (en) * | 2011-10-18 | 2013-04-25 | Covidien Lp | Optical trocar system |
US9693802B2 (en) | 2012-06-06 | 2017-07-04 | Covidien Lp | Obturator tip with insufflation pathway |
US20140046357A1 (en) * | 2012-08-09 | 2014-02-13 | Cook Medical Technologies Llc | Dilation device |
US9308020B2 (en) | 2013-03-14 | 2016-04-12 | Cook Medical Technologies Llc | Tri-fluted vascular access needle |
JP6466400B2 (en) * | 2013-03-15 | 2019-02-06 | デピュイ・シンセス・プロダクツ・インコーポレイテッド | Observation trocar with integrated prism for use with angled endoscopes |
US20170105760A1 (en) * | 2015-10-15 | 2017-04-20 | Priscilla Flagler | Chest tube insertion guide and method of using the same |
US10722111B2 (en) | 2018-03-13 | 2020-07-28 | Covidien Lp | Optical trocar assembly |
US10736659B2 (en) | 2018-10-23 | 2020-08-11 | Covidien Lp | Optical trocar assembly |
US11357542B2 (en) | 2019-06-21 | 2022-06-14 | Covidien Lp | Valve assembly and retainer for surgical access assembly |
Family Cites Families (95)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2566738A (en) * | 1949-05-03 | 1951-09-04 | Addressograph Multigraph | Punching apparatus |
DE2157911C2 (en) * | 1970-12-11 | 1982-02-04 | Marc Edmond Jean van Bruxelles Hoorn | Surgical device for ligating internal structures |
US4513747A (en) * | 1982-10-25 | 1985-04-30 | Ethicon, Inc. | Hard tissue surgical needle |
US4654030A (en) * | 1986-02-24 | 1987-03-31 | Endotherapeutics | Trocar |
JPH0710264B2 (en) * | 1987-02-16 | 1995-02-08 | オリンパス光学工業株式会社 | Inner needle |
ES2065337T3 (en) * | 1987-10-13 | 1995-02-16 | United States Surgical Corp | TROCAR SET. |
US5372138A (en) * | 1988-03-21 | 1994-12-13 | Boston Scientific Corporation | Acousting imaging catheters and the like |
US5224952A (en) * | 1988-07-06 | 1993-07-06 | Ethicon, Inc. | Safety trocar |
US5057082A (en) * | 1988-11-04 | 1991-10-15 | Plastic Injectors, Inc. | Trocar assembly |
US4878485A (en) * | 1989-02-03 | 1989-11-07 | Adair Edwin Lloyd | Rigid video endoscope with heat sterilizable sheath |
US5169397A (en) * | 1990-02-08 | 1992-12-08 | Olympus Optical Co., Ltd. | Medical instrument |
DE4035146A1 (en) * | 1990-11-06 | 1992-05-07 | Riek Siegfried | INSTRUMENT FOR PENETRATING BODY TISSUE |
US5685820A (en) * | 1990-11-06 | 1997-11-11 | Partomed Medizintechnik Gmbh | Instrument for the penetration of body tissue |
US5250068A (en) * | 1990-11-30 | 1993-10-05 | Yakuouji Shinkiyu Chiryouin | Optical transmission type acupuncture needle |
US5350393A (en) * | 1992-01-06 | 1994-09-27 | Inbae Yoon | Safety trocar penetrating instrument |
US5224951A (en) * | 1991-02-19 | 1993-07-06 | Dexide, Inc. | Surgical trocar and spike assembly |
US5645076A (en) * | 1991-08-14 | 1997-07-08 | Yoon; Inbae | Automatic retractable safety penetrating instrument |
US5226890A (en) * | 1991-11-13 | 1993-07-13 | United States Surgical Corporation | Tissue gripping device |
US5290276A (en) * | 1992-02-06 | 1994-03-01 | Sewell Jr Frank | Rotatable laparoscopic puncturing instrument |
US5256149A (en) * | 1992-02-14 | 1993-10-26 | Ethicon, Inc. | Trocar having transparent cannula and method of using |
US5540711A (en) * | 1992-06-02 | 1996-07-30 | General Surgical Innovations, Inc. | Apparatus and method for developing an anatomic space for laparoscopic procedures with laparoscopic visualization |
US5354302A (en) * | 1992-11-06 | 1994-10-11 | Ko Sung Tao | Medical device and method for facilitating intra-tissue visual observation and manipulation of distensible tissues |
US5562696A (en) * | 1992-11-12 | 1996-10-08 | Cordis Innovasive Systems, Inc. | Visualization trocar |
US5385572A (en) * | 1992-11-12 | 1995-01-31 | Beowulf Holdings | Trocar for endoscopic surgery |
US5334150A (en) * | 1992-11-17 | 1994-08-02 | Kaali Steven G | Visually directed trocar for laparoscopic surgical procedures and method of using same |
US5372588A (en) * | 1992-11-24 | 1994-12-13 | Farley; Kevin | Trocar having blunt tip |
US5263937A (en) * | 1993-02-11 | 1993-11-23 | Shipp John I | Trocar with profile to reduce insertion force |
JP3297495B2 (en) * | 1993-05-27 | 2002-07-02 | キヤノン株式会社 | Fixing device |
US5370640A (en) * | 1993-07-01 | 1994-12-06 | Kolff; Jack | Intracorporeal catheter placement apparatus and method |
WO1995007053A1 (en) * | 1993-09-07 | 1995-03-16 | Invamed, Inc. | Safety shielded, reusable trocar |
US5467762A (en) * | 1993-09-13 | 1995-11-21 | United States Surgical Corporation | Optical trocar |
US5441041A (en) * | 1993-09-13 | 1995-08-15 | United States Surgical Corporation | Optical trocar |
US5478327A (en) * | 1993-10-18 | 1995-12-26 | Ethicon, Inc. | Surgical needle with decreased penetration |
USRE36434E (en) * | 1993-11-05 | 1999-12-07 | Hamlin; David | Endoscopic device |
US5408992A (en) * | 1993-11-05 | 1995-04-25 | British Technology Group Usa Inc. | Endoscopic device for intraoral use |
US5720761A (en) * | 1993-11-16 | 1998-02-24 | Worldwide Optical Trocar Licensing Corp. | Visually directed trocar and method |
US5609562A (en) * | 1993-11-16 | 1997-03-11 | Worldwide Optical Trocar Licensing Corporation | Visually directed trocar and method |
US5591191A (en) * | 1994-01-26 | 1997-01-07 | Kieturakis; Maciej J. | Surgical instrument and method for helically incising a pathway into the interior of the body |
US5445142A (en) * | 1994-03-15 | 1995-08-29 | Ethicon Endo-Surgery, Inc. | Surgical trocars having optical tips defining one or more viewing ports |
CA2149290C (en) * | 1994-05-26 | 2006-07-18 | Carl T. Urban | Optical trocar |
US5658306A (en) * | 1994-07-01 | 1997-08-19 | Archimedes Surgical, Inc. | Method for making additional incisions in laparoscopic surgery |
AU699844B2 (en) * | 1994-08-25 | 1998-12-17 | Ethicon Endo-Surgery, Inc. | Safety trocar |
DE4432673A1 (en) * | 1994-09-14 | 1996-03-21 | Bernd Klemm | Surgical instrument |
US5632717A (en) * | 1994-10-07 | 1997-05-27 | Yoon; Inbae | Penetrating endoscope |
JP2974121B2 (en) * | 1994-11-18 | 1999-11-08 | 矢崎総業株式会社 | Locking structure of short-circuit contact in connector |
US5591192A (en) * | 1995-02-01 | 1997-01-07 | Ethicon Endo-Surgery, Inc. | Surgical penetration instrument including an imaging element |
US5569291A (en) * | 1995-02-01 | 1996-10-29 | Ethicon Endo-Surgery, Inc. | Surgical penetration and dissection instrument |
US5569292A (en) * | 1995-02-01 | 1996-10-29 | Ethicon Endo-Surgery, Inc. | Surgical penetration instrument with transparent blades and tip cover |
US5738628A (en) * | 1995-03-24 | 1998-04-14 | Ethicon Endo-Surgery, Inc. | Surgical dissector and method for its use |
US5607441A (en) * | 1995-03-24 | 1997-03-04 | Ethicon Endo-Surgery, Inc. | Surgical dissector |
US5662673A (en) * | 1995-04-05 | 1997-09-02 | Kieturakis; Maciej J. | Surgical trocar and method for placing a trocar sleeve in a body wall |
US5980549A (en) * | 1995-07-13 | 1999-11-09 | Origin Medsystems, Inc. | Tissue separation cannula with dissection probe and method |
US5857999A (en) * | 1995-05-05 | 1999-01-12 | Imagyn Medical Technologies, Inc. | Small diameter introducer for laparoscopic instruments |
US5571133A (en) * | 1995-06-01 | 1996-11-05 | Yoon; Inbae | Penetrating instrument with sequential indication of entry into anatomical cavities |
US5968065A (en) * | 1995-07-13 | 1999-10-19 | Origin Medsystems, Inc. | Tissue separation cannula |
US5807338A (en) * | 1995-10-20 | 1998-09-15 | United States Surgical Corporation | Modular trocar system and methods of assembly |
US5772678A (en) * | 1995-10-20 | 1998-06-30 | Inlet Medical, Inc. | Retractable disposable tip reusable trocar obturator |
US5662613A (en) * | 1996-05-14 | 1997-09-02 | Astarita; Denis C. | Endoscopic instrument lock |
US5681323A (en) * | 1996-07-15 | 1997-10-28 | Arick; Daniel S. | Emergency cricothyrotomy tube insertion |
US5843115A (en) * | 1996-10-28 | 1998-12-01 | Morejon; Orlando | Trocar insertion device |
US6176824B1 (en) * | 1996-10-29 | 2001-01-23 | James M. Davis | Fiberoptically illuminated appliances |
US6119031A (en) * | 1996-11-21 | 2000-09-12 | Boston Scientific Corporation | Miniature spectrometer |
US5807317A (en) * | 1997-02-27 | 1998-09-15 | Microtek Medical, Inc. | Trocar with concave cutting surface |
US5817061A (en) * | 1997-05-16 | 1998-10-06 | Ethicon Endo-Surgery, Inc. | Trocar assembly |
US5957947A (en) * | 1997-07-18 | 1999-09-28 | Wattiez; Arnaud | Single use trocar assembly |
US5873889A (en) * | 1997-08-08 | 1999-02-23 | Origin Medsystems, Inc. | Tissue separation cannula with dissection probe and method |
JP3417263B2 (en) * | 1997-08-29 | 2003-06-16 | マニー株式会社 | Suture needle |
US5916232A (en) * | 1997-10-10 | 1999-06-29 | Applied Medical Resources Corporation | Asymmetrical obturator |
US6106539A (en) * | 1998-04-15 | 2000-08-22 | Neosurg Technologies | Trocar with removable, replaceable tip |
US6306053B1 (en) * | 1998-05-21 | 2001-10-23 | Liechty, Ii Victor Jay | Razor-edged cutting tip |
JP3725702B2 (en) * | 1998-07-16 | 2005-12-14 | オリンパス株式会社 | Ultrasonic trocar |
US6228059B1 (en) * | 1999-06-16 | 2001-05-08 | Denis C. Astarita | Endoscopic instrument locks |
IL147143A0 (en) * | 1999-06-22 | 2002-08-14 | Blanco Ernesto E | Safety trocar with progressive cutting tip guards and gas jet tissue deflector |
US6450992B1 (en) * | 1999-07-02 | 2002-09-17 | Smith & Nephew, Inc. | Cannula interface |
US6206823B1 (en) * | 1999-08-02 | 2001-03-27 | Ethicon Endo-Surgery, Inc. | Surgical instrument and method for endoscopic tissue dissection |
JP4318110B2 (en) * | 1999-08-26 | 2009-08-19 | マニー株式会社 | Medical suturing needle and method for producing medical suturing needle |
USD449887S1 (en) * | 2000-01-26 | 2001-10-30 | Genicon Lc | Combined obturator, cannula and valve assembly |
USD443360S1 (en) * | 2000-03-22 | 2001-06-05 | Dexterity Surgical Inc. | Distal end of obturator for a trocar |
WO2002001998A2 (en) * | 2000-05-16 | 2002-01-10 | Taut, Inc. | Penetrating tip for trocar assembly |
US6884253B1 (en) * | 2000-05-16 | 2005-04-26 | Taut, Inc. | Penetrating tip for trocar assembly |
US8398666B2 (en) | 2000-05-16 | 2013-03-19 | Teleflex Medical Incorporated | Penetrating tip for trocar assembly |
US6692467B2 (en) * | 2000-05-31 | 2004-02-17 | Taut, Inc. | Trocar assembly |
JP2002028165A (en) | 2000-07-14 | 2002-01-29 | Inprest Co Ltd | Puncture needle for trocar |
AUPQ941000A0 (en) * | 2000-08-14 | 2000-09-07 | Cooper, Michael | An endoscopic surgical device |
US6835201B2 (en) * | 2001-03-15 | 2004-12-28 | Neosurg Technologies, Inc. | Trocar |
US6989003B2 (en) | 2001-08-31 | 2006-01-24 | Conmed Corporation | Obturator and cannula for a trocar adapted for ease of insertion and removal |
US7686823B2 (en) * | 2001-09-24 | 2010-03-30 | Applied Medical Resources, Corporation | Bladeless obturator |
US6830578B2 (en) * | 2001-11-26 | 2004-12-14 | Neosurg Technologies, Inc. | Trocar |
US20040230217A1 (en) * | 2003-05-15 | 2004-11-18 | O'heeron Peter T. | Offset trocar piercing tip |
US6960164B2 (en) * | 2003-08-01 | 2005-11-01 | Neosurg Technologies, Inc. | Obturator tip for a trocar |
US9408592B2 (en) * | 2003-12-23 | 2016-08-09 | Senorx, Inc. | Biopsy device with aperture orientation and improved tip |
US7320694B2 (en) * | 2004-03-11 | 2008-01-22 | Coopersurgical, Inc. | Obturator tip |
US8070767B2 (en) * | 2005-01-28 | 2011-12-06 | Tyco Healthcare Group Lp | Optical penetrating adapter for surgical portal |
US20060264905A1 (en) * | 2005-05-02 | 2006-11-23 | Pulsar Vascular, Inc. | Improved Catheters |
EP2537477B1 (en) * | 2006-10-06 | 2014-12-03 | SurgiQuest, Incorporated | Visualization trocar |
-
2008
- 2008-05-22 AU AU2008202266A patent/AU2008202266B2/en not_active Ceased
- 2008-05-29 ES ES08251871T patent/ES2375241T3/en active Active
- 2008-05-29 EP EP11004282.7A patent/EP2380512B1/en active Active
- 2008-05-29 CA CA002632479A patent/CA2632479A1/en not_active Abandoned
- 2008-05-29 EP EP20080251871 patent/EP1997447B8/en active Active
- 2008-05-29 US US12/128,752 patent/US9028521B2/en active Active
- 2008-05-30 JP JP2008142983A patent/JP5420857B2/en not_active Expired - Fee Related
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2013
- 2013-01-21 JP JP2013008150A patent/JP2013066779A/en active Pending
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EP2380512A3 (en) | 2014-03-12 |
EP2380512B1 (en) | 2018-08-15 |
US20080300617A1 (en) | 2008-12-04 |
ES2375241T3 (en) | 2012-02-28 |
JP2008296027A (en) | 2008-12-11 |
AU2008202266A1 (en) | 2008-12-18 |
AU2008202266B2 (en) | 2013-09-12 |
EP2380512A2 (en) | 2011-10-26 |
JP2013066779A (en) | 2013-04-18 |
JP5420857B2 (en) | 2014-02-19 |
EP1997447B1 (en) | 2011-10-19 |
EP1997447A1 (en) | 2008-12-03 |
EP1997447B8 (en) | 2012-03-21 |
US9028521B2 (en) | 2015-05-12 |
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