CA2855202A1 - Interior needle stick guard stems for tubes - Google Patents
Interior needle stick guard stems for tubes Download PDFInfo
- Publication number
- CA2855202A1 CA2855202A1 CA2855202A CA2855202A CA2855202A1 CA 2855202 A1 CA2855202 A1 CA 2855202A1 CA 2855202 A CA2855202 A CA 2855202A CA 2855202 A CA2855202 A CA 2855202A CA 2855202 A1 CA2855202 A1 CA 2855202A1
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- Prior art keywords
- pathway
- ball
- socket
- stem
- barb
- 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
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/0003—Apparatus for the treatment of obesity; Anti-eating devices
- A61F5/0013—Implantable devices or invasive measures
- A61F5/005—Gastric bands
- A61F5/0053—Gastric bands remotely adjustable
- A61F5/0056—Gastric bands remotely adjustable using injection ports
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/0208—Subcutaneous access sites for injecting or removing fluids
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/0208—Subcutaneous access sites for injecting or removing fluids
- A61M2039/0226—Subcutaneous access sites for injecting or removing fluids having means for protecting the interior of the access site from damage due to the insertion of a needle
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1066—Tube connectors; Tube couplings having protection means, e.g. sliding sleeve to protect connector itself, shrouds to protect a needle present in the connector, protective housing, isolating sheath
Abstract
Generally described herein are apparatus, systems and methods related to a stem insertable into the access port tubing for the prevention of fluid leaks. More particularly, the stem or stems may be larger than the interior diameter of the access port tubing thereby providing a fluid seal to keep the fluid within the access port tubing. However, these fluid seals might not be absolute and may still allow a certain degree of leakage. In one embodiment, by including barbs which further presses against the interior diameter of the access port tubing, the sealing of the fluid may be substantially improved. The stem itself, while impenetrable by a needle, may still allow for bend flexibility of the access port tubing by employing a ball and socket joint for connecting to a next stem. In this manner, fluid leak prevention is improved while retaining the mobility of the access port tubing.
Description
INTERIOR NEEDLE STICK GUARD STEMS FOR TUBES
FIELD
-----[0001] The present invention generally relates to medical systems, devices and uses thereof for treating obesity and/or obesity-related diseases.
More specifically, the present invention relates to one or more stems for guarding against needle sticks as related to an access port used as a part of a gastric banding system implantable in a patient.
BACKGROUND
[0002] Adjustable gastric banding apparatus have provided an effective and substantially less invasive alternative to gastric bypass surgery and other conventional surgical weight loss procedures.
Despite the positive outcomes of invasive weight loss procedures, such as gastric bypass surgery, it has been recognized that sustained weight loss can be achieved through a laparoscopically-placed gastric band, for example, the LAP-BAND
(Allergan, Inc., Irvine, CA) gastric band or the LAP-BAND APO
(Allergan, Inc., Irvine, CA) gastric band.
Generally, gastric bands are placed about the cardia, or upper portion, of a patient's stomach forming a stoma that restricts food's passage into a lower portion of the stomach.
When the stoma is of an appropriate size that is restricted by a gastric band, food held in the upper portion of the stomach may provide a feeling of satiety or fullness that discourages overeating. Unlike gastric bypass procedures, gastric band apparatus are reversible and require no permanent modification to the gastrointestinal tract.
An example of a gastric banding system is disclosed in Roslin, et al., U.S. Patent Pub. No. 2006/0235448, the entire disclosure of which is incorporated herein by this specific reference.
FIELD
-----[0001] The present invention generally relates to medical systems, devices and uses thereof for treating obesity and/or obesity-related diseases.
More specifically, the present invention relates to one or more stems for guarding against needle sticks as related to an access port used as a part of a gastric banding system implantable in a patient.
BACKGROUND
[0002] Adjustable gastric banding apparatus have provided an effective and substantially less invasive alternative to gastric bypass surgery and other conventional surgical weight loss procedures.
Despite the positive outcomes of invasive weight loss procedures, such as gastric bypass surgery, it has been recognized that sustained weight loss can be achieved through a laparoscopically-placed gastric band, for example, the LAP-BAND
(Allergan, Inc., Irvine, CA) gastric band or the LAP-BAND APO
(Allergan, Inc., Irvine, CA) gastric band.
Generally, gastric bands are placed about the cardia, or upper portion, of a patient's stomach forming a stoma that restricts food's passage into a lower portion of the stomach.
When the stoma is of an appropriate size that is restricted by a gastric band, food held in the upper portion of the stomach may provide a feeling of satiety or fullness that discourages overeating. Unlike gastric bypass procedures, gastric band apparatus are reversible and require no permanent modification to the gastrointestinal tract.
An example of a gastric banding system is disclosed in Roslin, et al., U.S. Patent Pub. No. 2006/0235448, the entire disclosure of which is incorporated herein by this specific reference.
[0003] Over time, a stoma created by a gastric band may need adjustment in order to maintain an appropriate size, which is neither too restrictive nor too passive. Accordingly, prior art gastric band systems provide a subcutaneous fluid access port ("access port") connected to an expandable or inflatable portion of the gastric band. By adding fluid to or removing fluid from the inflatable portion by means of a hypodermic needle inserted into the access port, the effective size of the gastric band can be adjusted to provide a tighter or looser constriction.
[0004] Typically, the access port, and in particular, the tubing leading from the access port to a reservoir or the inflatable portion of the gastric band may be susceptible to a misdirected needle. That is, a misdirected needle may puncture the tubing and cause leaking of fluid out of the gastric banding system, which may eventually lead to reduced efficacy of the gastric band. In some scenarios, the entire gastric banding system may then need to be removed from the body or the physician may need to perform an operation to mend the punctured tube.
[0005] Exterior tubing shields have been used as one option to protect the tubing from puncturing from stray needles. However, tubing shields add bulk, which may in certain patients, reduce the biocompatibility of the tubing and/or reduce the comfort of the gastric banding system within the patient.
[0006] What is needed is an interior tubing protection system that can reduce the likelihood and/or severity of leaking while still maintaining the relatively less bulky tubing currently incorporated in gastric banding systems.
SUMMARY
SUMMARY
[0007] Generally described herein are apparatus, systems and methods related to a stem insertable into the access port tubing for the prevention of fluid leaks. More particularly, the stem or stems may be larger than the interior diameter of the access port tubing thereby providing a fluid seal to keep the fluid within the access port tubing. However, these fluid seals might not be absolute and may still allow a certain small degree of leakage.
In one embodiment, by including barbs which further press against the interior diameter of the access port tubing, the sealing of the fluid may be substantially improved.
The stem itself, while impenetrable by a needle under normal application of force, may still allow for bend flexibility of the access port tubing by employing a ball and a socket joint for connecting to a next stem.
In this manner, fluid leak prevention is improved while retaining the mobility of the access port tubing.
In one embodiment, by including barbs which further press against the interior diameter of the access port tubing, the sealing of the fluid may be substantially improved.
The stem itself, while impenetrable by a needle under normal application of force, may still allow for bend flexibility of the access port tubing by employing a ball and a socket joint for connecting to a next stem.
In this manner, fluid leak prevention is improved while retaining the mobility of the access port tubing.
[0008] In one embodiment, provided is an access port for use with a gastric band for the treatment of obesity.
The access port may comprise a housing enclosing a fluid reservoir, a conduit having a first end connected to the fluid reservoir and a bulbous second end, a tube having an inner surface defining a first pathway, a first end connected to the bulbous second end of the conduit and a second end connected to an inflatable portion of the gastric band.
The tube further having a first stem guard located within the first pathway of the tube and configured to prevent a first needle from passing therethrough.
The first stem guard may further include a first socket-shaped tail portion for receiving the bulbous second end of the conduit, a first ball-shaped head portion, a first shaft portion located between the first socket-shaped tail portion and the first ball-shaped head portion, the first shaft portion defining a second pathway for carrying fluid, and a first barb portion protruding from the first shaft portion and configured to extend into the inner surface of the tube.
The access port may comprise a housing enclosing a fluid reservoir, a conduit having a first end connected to the fluid reservoir and a bulbous second end, a tube having an inner surface defining a first pathway, a first end connected to the bulbous second end of the conduit and a second end connected to an inflatable portion of the gastric band.
The tube further having a first stem guard located within the first pathway of the tube and configured to prevent a first needle from passing therethrough.
The first stem guard may further include a first socket-shaped tail portion for receiving the bulbous second end of the conduit, a first ball-shaped head portion, a first shaft portion located between the first socket-shaped tail portion and the first ball-shaped head portion, the first shaft portion defining a second pathway for carrying fluid, and a first barb portion protruding from the first shaft portion and configured to extend into the inner surface of the tube.
[0009] In one embodiment, provided is a flexible tubing for carrying fluid between an access port and an inflatable portion of a gastric band.
The flexible tubing may comprise a body configured to have a first end attachable to a bulbous end of a conduit of the access port and a second end attachable to the inflatable portion, the body having an inner surface defining a first pathway for carrying fluid, and a first stem guard located within the first pathway of the body and configured to prevent a needle from passing therethrough.
The first stem guard may further include a first socket-shaped tail portion for receiving a bulbous second end of the conduit, a first ball-shaped head portion, a first shaft portion located between the first socket-shaped tail portion and the first ball-shaped head portion, the first shaft portion defining a second pathway for carrying fluid, and a first barb portion protruding from the first shaft portion and configured to extend into the inner surface of the body.
The flexible tubing may comprise a body configured to have a first end attachable to a bulbous end of a conduit of the access port and a second end attachable to the inflatable portion, the body having an inner surface defining a first pathway for carrying fluid, and a first stem guard located within the first pathway of the body and configured to prevent a needle from passing therethrough.
The first stem guard may further include a first socket-shaped tail portion for receiving a bulbous second end of the conduit, a first ball-shaped head portion, a first shaft portion located between the first socket-shaped tail portion and the first ball-shaped head portion, the first shaft portion defining a second pathway for carrying fluid, and a first barb portion protruding from the first shaft portion and configured to extend into the inner surface of the body.
[0010] In one embodiment, provided is a needle stem guard located internally within a first pathway of a flexible tubing for the prevention of leaks. The needle stem guard may comprise a socket-shaped tail portion for receiving a bulbous conduit connected to a fluid reservoir of an access port, a ball-shaped head portion, a shaft portion located between the first socket-shaped tail portion and the ball-shaped head portion, the shaft portion defining a second pathway for carrying fluid, and a barb portion protruding from the shaft portion.
BRIEF DESCRIPTION OF THE DRAWINGS
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The features, obstacles, and advantages of the present invention will become more apparent from the detailed description set forth below when taken in conjunction with the drawings, wherein:
[0012] FIG. 1 illustrates a gastric banding system including an access port according to an embodiment of the present invention.
[0013] FIG. 2A illustrates needle stick stem guards without barbs according to an embodiment of the present invention.
[0014] FIG. 2B illustrates a potential leak path utilizing the needle stick stem guards without barbs of FIG. 2A.
[0015] FIG. 3A illustrates how the inclusion of barbs to needle stick stem guards may prevent a potential leak path according to an embodiment of the present invention.
[0016] FIG. 3B illustrates needle stick stem guards with barbs according to an embodiment of the present invention.
[0017] FIG. 3C illustrates a close-up, cross-sectional view of a portion of FIG. 3A according to an embodiment of the present invention.
[0018] FIG. 3D illustrates an even closer view of a portion of FIG. 3A according to an embodiment of the present invention.
[0019] FIG. 3E illustrates a stem guard for attaching to a connector of an access port housing according to an embodiment of the present invention.
[0020] FIG. 3F illustrates a cross-sectional view of the stem guard of FIG. 3E according to an embodiment of the present invention.
[0021] FIG. 3G illustrates a stem guard for attaching to another stem guard according to an embodiment of the present invention.
[0022] FIG. 3H illustrates a cross-sectional view of the stem guard of FIG. 3G according to an embodiment of the present invention.
[0023] FIG. 4A illustrates needle stick stem guards with barbs according to an embodiment of the present invention.
[0024] FIG. 4B illustrates a close-up, cross-sectional view of a portion of FIG. 4A according to an embodiment of the present invention.
DETAILED DESCRIPTION
DETAILED DESCRIPTION
[0025] Apparatuses, systems and/or methods that implement the embodiments of the various features of the present invention will now be described with reference to the drawings.
The drawings and the associated descriptions are provided to illustrate some embodiments of the present invention and not to limit the scope of the present invention.
Throughout the drawings, reference numbers are re-used to indicate correspondence between referenced elements.
The drawings and the associated descriptions are provided to illustrate some embodiments of the present invention and not to limit the scope of the present invention.
Throughout the drawings, reference numbers are re-used to indicate correspondence between referenced elements.
[0026] FIG. 1 illustrates an implantable gastric banding system 105 used for the treatment of obesity. In the embodiment shown, a tube 125 and an access port 130 are used in the implantable gastric banding system 105, including a gastric band 110 configured to form a loop around a portion of a stomach 120 of a patient 100 to form a stoma. The gastric band 110 is preferably wrapped around the cardia or esophageal junction of the stomach 120 to restrict the flow of food passing from the upper portions of the stomach 120 to the lower portions of the stomach 120.
The restricted flow of food enhances the satiety signals sensed by the patient 100, which desirably reduces food consumption of the patient 100, which aids the patient 100 in losing weight.
The restricted flow of food enhances the satiety signals sensed by the patient 100, which desirably reduces food consumption of the patient 100, which aids the patient 100 in losing weight.
[0027] Over time, a physician may need to adjust the degree to which the gastric band 110 constricts the stomach. As such, the gastric band 110 may include an inflatable portion 115, which comprises an inflatable cuff that wraps around the stomach 120 of the patient 100.
The inflatable portion 115 may be filled with fluid.
The amount of fluid in the inflatable portion 115 defines the degree to which the gastric band 110 constricts the stomach 120 (e.g., a greater amount of fluid in the inflatable portion 115 will increase the constriction of the stomach 120).
A physician may adjust the amount of fluid in the inflatable portion 115 via the access port 130.
The inflatable portion 115 may be filled with fluid.
The amount of fluid in the inflatable portion 115 defines the degree to which the gastric band 110 constricts the stomach 120 (e.g., a greater amount of fluid in the inflatable portion 115 will increase the constriction of the stomach 120).
A physician may adjust the amount of fluid in the inflatable portion 115 via the access port 130.
[0028] The access port 130 is preferably fixed subcutaneously within the body of the patient 100, and is preferably fixed to body tissue including the interior muscle wall of the patient 100.
The tube 125 conveys fluid to and from the inflatable portion 115 via the access port 130.
One end of the tube 125 couples to the access port 130, and the other end of the tube 125 couples to the inflatable portion 115 of the gastric band 110.
The tube 125 conveys fluid to and from the inflatable portion 115 via the access port 130.
One end of the tube 125 couples to the access port 130, and the other end of the tube 125 couples to the inflatable portion 115 of the gastric band 110.
[0029] A physician inserts a syringe needle 150 into the patient's body to access the access port 130, and varies the amount of fluid in the inflatable portion 115 of the gastric band 110.
Generally, the physician must attempt to locate a septum 135 of the access port 130 to pass the syringe 150 needle through the septum 135.
The septum 135 must be penetrated by the syringe needle 150 to allow fluid to enter, or be removed from the access port 130. The physician will typically palpate the area around the access port 130 to locate the septum 135.
Generally, the physician must attempt to locate a septum 135 of the access port 130 to pass the syringe 150 needle through the septum 135.
The septum 135 must be penetrated by the syringe needle 150 to allow fluid to enter, or be removed from the access port 130. The physician will typically palpate the area around the access port 130 to locate the septum 135.
[0030] However, it may be difficult for the physician to properly locate the septum 135, because the access port 130 may be covered by many layers of skin and/or fat. Accordingly, it is possible the physician may not properly locate the septum 135, and may insert the syringe 150 needle in the wrong location.
The physician may errantly contact a portion of the tube 125 proximal to the access port 130.
The syringe needle 150 may puncture the tube 125, specifically the end of the tube 125 connected to the access port 130, and may cause fluid to leak from the gastric banding system 105. A surgical procedure may be necessary to repair the punctured tube 125, or replace the entire gastric banding system 105.
The physician may errantly contact a portion of the tube 125 proximal to the access port 130.
The syringe needle 150 may puncture the tube 125, specifically the end of the tube 125 connected to the access port 130, and may cause fluid to leak from the gastric banding system 105. A surgical procedure may be necessary to repair the punctured tube 125, or replace the entire gastric banding system 105.
[0031] By incorporating an apparatus to guard the tube 125 from leaking fluid, this undesirable result may be avoided or prevented.
[0032] FIG. 2A illustrates an access port system 200 having needle stick guard stems 230, 235, 240 deployed or positioned in an internal fluid pathway 225 to prevent the leaking out of fluid when a needle pricks or penetrates a flexible tubing 220 between an access port 205 and a gastric band (not shown). As shown, the needle stick guard stem 230 is connected to an access port connector 215, which in turn, serves as a fluid conduit between an internal fluid reservoir 240 of the access port 205 and the rest of the gastric band. The needle stick guard stem 230 is attached to another needle stick guard stem 235, which in turn is attached to the needle stick guard stem 240. As these needle stick guard stems 230, 235, 240 are positioned inside the internal fluid pathway 225, in one sense, they block or restrict the internal fluid pathway 225. However, the needle guard stems 230, 235 and 240 include stem portions that are hollowed out to serve as fluid conduits while protecting the hollow interior from leakage caused by needle puncturing.
In essence, the needle guard stems 230, 235 and 240 are able to fluidly couple the internal fluid reservoir 240 and the internal fluid pathway 225 by creating a substitute fluid pathway to allow fluid to travel from the fluid reservoir 240 to the internal fluid pathway 225, and vice versa.
In essence, the needle guard stems 230, 235 and 240 are able to fluidly couple the internal fluid reservoir 240 and the internal fluid pathway 225 by creating a substitute fluid pathway to allow fluid to travel from the fluid reservoir 240 to the internal fluid pathway 225, and vice versa.
[0033] Advantageously, by utilizing a plurality of short needle stick guard stems (as opposed to one long one), flexibility of the tubing 220 may be maintained.
As shown, the needle stick guard stem 240 leads to unprotected portions of the internal fluid pathway 225.
In practice, because physicians attempting to penetrate a septum 210 of the access port 205 are unlikely to miss by more than a few inches, additional needle stick guard stems may not be necessary.
However, additional needle stick guard stems may be employed if desired.
As shown, the needle stick guard stem 240 leads to unprotected portions of the internal fluid pathway 225.
In practice, because physicians attempting to penetrate a septum 210 of the access port 205 are unlikely to miss by more than a few inches, additional needle stick guard stems may not be necessary.
However, additional needle stick guard stems may be employed if desired.
[0034] Generally, the needle stick guard stems may prevent the needle from directly penetrating its shell and creating a large leak.
However, the fact that these needle stick guard stems mainly incorporate physical pressure (e.g., pressing against and/or slightly stretching the outer diameter of the internal fluid pathway 225) to provide sealing renders the needle stick guard stems susceptible to allowing leaks from the joints (i.e., the connection point between two adjacent needle stick stem guards).
However, the fact that these needle stick guard stems mainly incorporate physical pressure (e.g., pressing against and/or slightly stretching the outer diameter of the internal fluid pathway 225) to provide sealing renders the needle stick guard stems susceptible to allowing leaks from the joints (i.e., the connection point between two adjacent needle stick stem guards).
[0035] FIG. 2B illustrates examples of a potential leakage path 255 and which may result when a misdirected needle 250 penetrates the area proximal to the stem.
This potential leakage path 255 may allow fluid inside the gastric banding system to undesirably leak out potentially reducing the efficacy of the gastric banding system.
This potential leakage path 255 may allow fluid inside the gastric banding system to undesirably leak out potentially reducing the efficacy of the gastric banding system.
[0036] Accordingly, one or more barbs may be employed to prevent fluid passage from the joint to a puncture hole caused by a misdirected needle.
FIGS. 3A-3H illustrates an embodiment having needle stick stem guards that are less susceptible to allowing leaks from joints.
FIGS. 3A-3H illustrates an embodiment having needle stick stem guards that are less susceptible to allowing leaks from joints.
[0037] FIG. 3A illustrates a similar scenario as FIG. 2B, where the misdirected needle 250 penetrates the area proximal to a needle stick guard stem 335. However, due to the presence of a barb or protrusion 338, fluid from the joint created by a head portion 339 and a corresponding tail portion 341 is blocked from traveling along the exterior of the needle stick guard stem 335 and out a hole caused by the needle 250.
Accordingly, the addition of a barb or protrusion 338 provides an advantageous benefit of leak prevention.
Accordingly, the addition of a barb or protrusion 338 provides an advantageous benefit of leak prevention.
[0038] FIG. 3B illustrates a perspective view of a portion of a gastric banding employing the features of FIG. 3A. Here, needle stick guard stems 330, 335, 340 deployed or positioned in an internal fluid pathway 325 to prevent the fluid from leaking out of the gastric banding system when a needle pricks or penetrates the flexible tubing 320 connecting an access port 305 and a gastric band (not shown).
Each of the needle guard stems 330, 335, 340 includes a barb or protrusion portion 333, 338 and 343, respectively, directed to block a portion of the internal fluid pathway 325 in order to prevent fluid passage from a joint to a puncture hole caused by a misdirected needle in a manner similar to the illustration of FIG. 3A and the corresponding description, thereby increasing the leaking prevention capabilities.
Each of the needle guard stems 330, 335, 340 includes a barb or protrusion portion 333, 338 and 343, respectively, directed to block a portion of the internal fluid pathway 325 in order to prevent fluid passage from a joint to a puncture hole caused by a misdirected needle in a manner similar to the illustration of FIG. 3A and the corresponding description, thereby increasing the leaking prevention capabilities.
[0039] In addition, the needle guard stems 330, 335, 340 are slightly larger than the inner diameter of the internal fluid pathway 325 of the flexible tubing 320 and therefore press against the flexible tubing 320 to create a fluid seal.
[0040] FIG. 3C illustrates a close up, cross-sectional view of FIG. 3A. As shown from left to right, an access port connector 315 defining a fluid conduit 350 may include a bulbous conduit head 345 connectable to the first needle guard stem 330. More particularly, the head 345 fits into a tail portion 331 of the first needle guard stem 330.
The first needle guard stem 330, in addition to the tail portion 331, may include a shaft portion 332, a barb portion 333 and a head 334 portion.
The head portion 334 may fit into a tail portion 336 of the second needle guard stem 335 (in a manner that a ball may fit into a socket to create a flexible joint). The second needle guard stem 335 may also include a shaft portion 337, a barb portion 338 and a head portion 339.
Similarly, the head portion of 339 of the second needle guard stem 335 fits into a tail portion 341 of the third needle guard stem 340 to create another flexible joint.
The third needle guard stem 340 may also include a shaft portion 342, a barb portion 343 and a head portion 344. The stems 332, 337 and 342 may each be molded to include a cavity for transporting fluid, for example, internal fluid pathways 351, 352 and 353 for establishing a fluid path between the fluid conduit 350 and the internal fluid pathway 325.
The first needle guard stem 330, in addition to the tail portion 331, may include a shaft portion 332, a barb portion 333 and a head 334 portion.
The head portion 334 may fit into a tail portion 336 of the second needle guard stem 335 (in a manner that a ball may fit into a socket to create a flexible joint). The second needle guard stem 335 may also include a shaft portion 337, a barb portion 338 and a head portion 339.
Similarly, the head portion of 339 of the second needle guard stem 335 fits into a tail portion 341 of the third needle guard stem 340 to create another flexible joint.
The third needle guard stem 340 may also include a shaft portion 342, a barb portion 343 and a head portion 344. The stems 332, 337 and 342 may each be molded to include a cavity for transporting fluid, for example, internal fluid pathways 351, 352 and 353 for establishing a fluid path between the fluid conduit 350 and the internal fluid pathway 325.
[0041] The addition of barbs 333, 338 and 343 at the joint areas proximal to the location of the heads 334, 338 and 344 are located advantageously to prevent fluid passage from the joint to a punctured hole.
That is, the protruding aspects of the bulbous barb act as a shield to block the joint from being penetrated by a misdirected needle. In addition, since the barb portions 333, 338 and 343 significantly bulge out into the inner diameter of the tube, a better fluid seal is provided at the location of the barb portions 333, 338 and 343. In this manner, a leak may be limited to only existing fluid between two adjacent barbs since additional fluid cannot flow past the barbs and out of the puncture hole.
That is, the protruding aspects of the bulbous barb act as a shield to block the joint from being penetrated by a misdirected needle. In addition, since the barb portions 333, 338 and 343 significantly bulge out into the inner diameter of the tube, a better fluid seal is provided at the location of the barb portions 333, 338 and 343. In this manner, a leak may be limited to only existing fluid between two adjacent barbs since additional fluid cannot flow past the barbs and out of the puncture hole.
[0042] FIG. 3D further illustrate the relative diameters of a needle stick stem guard (e.g., needle stick stem guard 340) which serves to explain how fluid is passed between the fluid paths 325 and 353 while being blocked by barb portion 343 and how a fluid seal is created by a diameter 362 of the needle stick stem guard 340. As shown in FIG. 3C, the inner diameter of a tube 360 may be larger or equal to an inner diameter 361 of the fluid path 353.
However, the inner diameter 361 is less than the diameter 362 of the needle stick stem guard 340.
In this manner, any leaking of fluid as shown by arrow 371 is minimal.
The barb portion 343 further seals and/or blocks the fluid shown by arrow 371 as it protrudes even deeper into the flexible tubing 320.
Accordingly, fluid may travel between fluid pathway 325 and 353 without leaking out of the pathway.
However, the inner diameter 361 is less than the diameter 362 of the needle stick stem guard 340.
In this manner, any leaking of fluid as shown by arrow 371 is minimal.
The barb portion 343 further seals and/or blocks the fluid shown by arrow 371 as it protrudes even deeper into the flexible tubing 320.
Accordingly, fluid may travel between fluid pathway 325 and 353 without leaking out of the pathway.
[0043] FIG. 3E illustrates a close-up view of the first needle stem guard 330 and FIG. 3E illustrates a cross-sectional view of the first needle guard 330.
The fluid pathway of the first needle stem guard 351 is hidden from view in FIG. 3D (as it extends from the opening 370 of the head portion to the tail portion 331), but is revealed in FIG. 3E. The first needle stem guard 330 as described above may include the tail portion 331 for receiving the head 345 of the connector 315.
At one end, the tail portion 331 may have an opening with a first diameter sized to fit the head portion 345 and may taper down to a relatively smaller diameter corresponding to portion of the shaft portion 332 (which may still be slightly larger than an inner diameter of the fluid pathway, for example, fluid pathway 325).
The shaft portion 332 may lead to the barb portion 333 which bulges out beyond the outer diameter of the shaft portion 332. On the other side of the barb portion 333 may be the head portion 334 which includes a hole 370 for allowing fluid to enter and travel along the fluid pathway 351.
The fluid pathway of the first needle stem guard 351 is hidden from view in FIG. 3D (as it extends from the opening 370 of the head portion to the tail portion 331), but is revealed in FIG. 3E. The first needle stem guard 330 as described above may include the tail portion 331 for receiving the head 345 of the connector 315.
At one end, the tail portion 331 may have an opening with a first diameter sized to fit the head portion 345 and may taper down to a relatively smaller diameter corresponding to portion of the shaft portion 332 (which may still be slightly larger than an inner diameter of the fluid pathway, for example, fluid pathway 325).
The shaft portion 332 may lead to the barb portion 333 which bulges out beyond the outer diameter of the shaft portion 332. On the other side of the barb portion 333 may be the head portion 334 which includes a hole 370 for allowing fluid to enter and travel along the fluid pathway 351.
[0044] In one embodiment, the first needle guard 330 may be anywhere between about 0.5 centimeters to about 5 centimeters long as measured between the head portion 334 and the tail portion 331. Preferably, the first needle stem guard 330 may be between about 2 to 4 centimeters long.
[0045] The first needle stem guard 330 may be constructed out of any suitable biocompatible material including, but not limited to, titanium, stainless steel, polysulfone, PPSU, PEEK from Solvay, UHMWPE from Ticona, and any combination thereof.
[0046] FIGS. 3G and 3H illustrate an example of a stem guard other than the first needle stem guard 330 (e.g., stem guard 335 or 340). For ease of understanding, references will be made to the second needle stem guard 335 as attachable to the first needle stem guard 330, but the characteristics are also applicable to the third needle stem guard 340 or any other stem guards that may be desirably added.
As compared to the first needle stem guard 330, the second needle stem guard 335 has a tail portion 336 configured to be a different shape and size.
The reason for the difference is because the two tails, 331 and 336, respectively, may receive head that are shaped differently.
While the tail 331 is shown to be larger to accommodate for the larger connector head 345, other variations are possible (e.g., where the connector head is actually smaller than a head of the stem guards).
Indeed, besides the shape and size of the tail portion 336, the second stem guard 335 is virtually identical in size, functionality and material as the first stem guard 330.
In other words, the tail portion 336 of the second needle stem guard 375 may have an opening with a first diameter sized to fit the head 334 of the first needle stem guard 330 and may taper down to a relatively smaller diameter corresponding to the portion of the shaft portion 337 (which may still be slightly larger than an inner diameter of the fluid pathway, for example, fluid pathway 325). The shaft portion 337 may lead to the barb portion 338 which bulges out beyond the diameter of the shaft portion 337. On the other side of the barb portion 338 may be the head portion 339 which includes a hole 375 for allowing fluid to enter and travel along the fluid pathway 352 and through the fluid pathway 351 of the first needle stem guard 330. The dimensions of the shaft portion 337, the barb portion 338 and the head portion 339 may, in one embodiment, be identical to the dimensions of the shaft portion 332, the barb portion 333 and the head portion 334 of the first needle stem guard 330. Indeed, identical dimensioning of needle stem guards may allow for cheaper manufacturing and improved compatibility as the needle stem guards all couple to at least one other needle stem guard to produce a protected fluid path.
As compared to the first needle stem guard 330, the second needle stem guard 335 has a tail portion 336 configured to be a different shape and size.
The reason for the difference is because the two tails, 331 and 336, respectively, may receive head that are shaped differently.
While the tail 331 is shown to be larger to accommodate for the larger connector head 345, other variations are possible (e.g., where the connector head is actually smaller than a head of the stem guards).
Indeed, besides the shape and size of the tail portion 336, the second stem guard 335 is virtually identical in size, functionality and material as the first stem guard 330.
In other words, the tail portion 336 of the second needle stem guard 375 may have an opening with a first diameter sized to fit the head 334 of the first needle stem guard 330 and may taper down to a relatively smaller diameter corresponding to the portion of the shaft portion 337 (which may still be slightly larger than an inner diameter of the fluid pathway, for example, fluid pathway 325). The shaft portion 337 may lead to the barb portion 338 which bulges out beyond the diameter of the shaft portion 337. On the other side of the barb portion 338 may be the head portion 339 which includes a hole 375 for allowing fluid to enter and travel along the fluid pathway 352 and through the fluid pathway 351 of the first needle stem guard 330. The dimensions of the shaft portion 337, the barb portion 338 and the head portion 339 may, in one embodiment, be identical to the dimensions of the shaft portion 332, the barb portion 333 and the head portion 334 of the first needle stem guard 330. Indeed, identical dimensioning of needle stem guards may allow for cheaper manufacturing and improved compatibility as the needle stem guards all couple to at least one other needle stem guard to produce a protected fluid path.
[0047] Furthermore, the shape of the head of one needle stem guard is configured to be received by the shape of the tail of an adjacent needle stem guard in order to provide the "ball-and-socket" functionality and thereby allow pivoting of the respective, adjacent needle stem guards to maintain flexibility of the tubing within which the needle stem guards are positioned.
[0048] In newly designed access ports and/or other appropriate access ports, the connector leading out of the access port housing (e.g., the access port connector 315) may be designed to have a head that is shaped and dimensioned similarly to the head of the first needle stem guard, the second needle stem guard, the third needle stem guard, and so forth.
By conforming the head shape and dimension of the connector to be the same as the needle stem guards, all needle stem guards may be identical. In other words, this will eliminate the need for the first needle stem guard (e.g., first needle stem guard 335) interfacing with the connector (e.g., connector 315) to include a differently shaped and/or dimensioned tail.
By conforming the head shape and dimension of the connector to be the same as the needle stem guards, all needle stem guards may be identical. In other words, this will eliminate the need for the first needle stem guard (e.g., first needle stem guard 335) interfacing with the connector (e.g., connector 315) to include a differently shaped and/or dimensioned tail.
[0049] For example, FIGS. 4A and 4B illustrate an access port connector 415 having a head shaped and dimensioned to be similar to the head shape and dimension of needle stem guards 430, 435, and 440.
In this embodiment, manufacturing of only one interchangeable type of needle stem guard is possible.
In this embodiment, manufacturing of only one interchangeable type of needle stem guard is possible.
[0050] FIG. 4A illustrates one embodiment of needle stick guard stems 430, 435, 440 deployed or positioned in an internal fluid pathway 425 to prevent the leaking out of fluid when a needle pricks or penetrates a flexible tubing 420 between an access port 405 and a gastric band (not shown).
Each of the needle guard stems 430, 435, 440 may be identical.
Furthermore, each of the needle guard stems 430, 435, 440 includes a barb or protrusion portion 433, 438 and 443, respectively, directed to block a portion of the internal fluid pathway 425 in order to prevent fluid passage from a joint to a puncture hole caused by a misdirected needle, thereby increasing the leaking prevention capabilities.
Each of the needle guard stems 430, 435, 440 may be identical.
Furthermore, each of the needle guard stems 430, 435, 440 includes a barb or protrusion portion 433, 438 and 443, respectively, directed to block a portion of the internal fluid pathway 425 in order to prevent fluid passage from a joint to a puncture hole caused by a misdirected needle, thereby increasing the leaking prevention capabilities.
[0051] In addition, the needle guard stems 430, 435, 440 are slightly larger than the inner diameter of the internal fluid pathway 425 of the flexible tubing 420 and therefore press against the flexible tubing 420 to create a fluid seal.
[0052] FIG. 4B illustrates a close-up, cross-sectional view of FIG. 4A. As shown from left to right, an access port connector 415 defining a fluid conduit 450 may include a head 445 connectable to the first needle guard stem 430.
More particularly, the head 445 fits into a tail portion 431 of the first needle guard stem 430.
The first needle guard stem 430, in addition to the tail portion 431, may include a shaft portion 432, the barb portion 433 and a head 434 portion.
The head portion 434 may fit into a tail portion 436 of the second needle guard stem 435 (in a manner that a ball may fit into a socket to create a flexible joint). The second needle guard stem 435 may also include a shaft portion 437, the barb portion 438 and a head portion 439. Similarly, the head portion 439 of the second needle guard stem 435 fits into the tail portion 441 of the third needle guard stem 440 to create another flexible joint.
The third needle guard stem 440 may also include a shaft portion 442, the barb portion 443 and a head portion 444.
The shaft portions 432, 437 and 442 may each be molded to include a cavity for transporting fluid through, for example, internal fluid pathways 451, 452 and 453 for establishing a fluid path between fluid conduit 450 and the internal fluid pathway 425.
More particularly, the head 445 fits into a tail portion 431 of the first needle guard stem 430.
The first needle guard stem 430, in addition to the tail portion 431, may include a shaft portion 432, the barb portion 433 and a head 434 portion.
The head portion 434 may fit into a tail portion 436 of the second needle guard stem 435 (in a manner that a ball may fit into a socket to create a flexible joint). The second needle guard stem 435 may also include a shaft portion 437, the barb portion 438 and a head portion 439. Similarly, the head portion 439 of the second needle guard stem 435 fits into the tail portion 441 of the third needle guard stem 440 to create another flexible joint.
The third needle guard stem 440 may also include a shaft portion 442, the barb portion 443 and a head portion 444.
The shaft portions 432, 437 and 442 may each be molded to include a cavity for transporting fluid through, for example, internal fluid pathways 451, 452 and 453 for establishing a fluid path between fluid conduit 450 and the internal fluid pathway 425.
[0053] The addition of the barb portions 433, 438 and 443 at the joint areas proximal to the location of the heads 434, 439 and 444 are located advantageously to prevent fluid passage from the joint to a punctured hole. For example, the barb portions 433, 438 and 443 function to provide protection to the joint from a misdirected needle. That is, the protruding aspects of the barb act as a shield to block the joint from being penetrated by a misdirected needle.
In addition, since the barb portions 433, 438 and 443 significantly bulge out into the inner diameter of the tube, a better fluid seal is provided at the location of the barb portions 433, 438 and 443.
In this manner, a leak may be limited to only existing fluid between two adjacent barbs since additional fluid cannot flow past the barbs and out of the puncture hole.
In addition, since the barb portions 433, 438 and 443 significantly bulge out into the inner diameter of the tube, a better fluid seal is provided at the location of the barb portions 433, 438 and 443.
In this manner, a leak may be limited to only existing fluid between two adjacent barbs since additional fluid cannot flow past the barbs and out of the puncture hole.
[0054] Certain embodiments have been disclosed to clarify the concepts including the above structural configurations.
However, one skilled in the art will recognize that an endless number of implementations may be performed with the concepts herein. For example, the tube may be a catheter and may be used in other applications which require transferring fluid or gas.
However, one skilled in the art will recognize that an endless number of implementations may be performed with the concepts herein. For example, the tube may be a catheter and may be used in other applications which require transferring fluid or gas.
[0055] Unless otherwise indicated, all numbers expressing quantities of ingredients, volumes of fluids, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about." Accordingly, unless indicated to the contrary, the numerical parameters set forth in the specification and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by the present invention. At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical parameter should at least be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as possible.
Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
[0056] The terms "a," "an," "the" and similar referents used in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. Recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range.
Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context.
The use of any and all examples, or exemplary language (e.g., "such as") provided herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context.
The use of any and all examples, or exemplary language (e.g., "such as") provided herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
[0057] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member may be referred to and claimed individually or in any combination with other members of the group or other elements found herein.
It is anticipated that one or more members of a group may be included in, or deleted from, a group for reasons of convenience and/or patentability.
When any such inclusion or deletion occurs, the specification is deemed to contain the group as modified thus fulfilling the written description of all Markush groups used in the appended claims.
It is anticipated that one or more members of a group may be included in, or deleted from, a group for reasons of convenience and/or patentability.
When any such inclusion or deletion occurs, the specification is deemed to contain the group as modified thus fulfilling the written description of all Markush groups used in the appended claims.
[0058] Certain embodiments of this invention are described herein, including the best mode known to the inventors for carrying out the invention.
Of course, variations on these described embodiments will become apparent to those of ordinary skill in the art upon reading the foregoing description.
The inventor expects skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than specifically described herein.
Accordingly, this invention includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law.
Moreover, any combination of the above-described elements in all possible variations thereof is encompassed by the invention unless otherwise indicated herein or otherwise clearly contradicted by context.
Of course, variations on these described embodiments will become apparent to those of ordinary skill in the art upon reading the foregoing description.
The inventor expects skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than specifically described herein.
Accordingly, this invention includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law.
Moreover, any combination of the above-described elements in all possible variations thereof is encompassed by the invention unless otherwise indicated herein or otherwise clearly contradicted by context.
[0059] Furthermore, certain references have been made to patents and printed publications throughout this specification. Each of the above-cited references and printed publications are individually incorporated herein by reference in their entirety.
[0060] Specific embodiments disclosed herein may be further limited in the claims using consisting of or and consisting essentially of language.
When used in the claims, whether as filed or added per amendment, the transition term "consisting of" excludes any element, step, or ingredient not specified in the claims.
The transition term "consisting essentially of"
limits the scope of a claim to the specified materials or steps and those that do not materially affect the basic and novel characteristic(s). Embodiments of the invention so claimed are inherently or expressly described and enabled herein.
When used in the claims, whether as filed or added per amendment, the transition term "consisting of" excludes any element, step, or ingredient not specified in the claims.
The transition term "consisting essentially of"
limits the scope of a claim to the specified materials or steps and those that do not materially affect the basic and novel characteristic(s). Embodiments of the invention so claimed are inherently or expressly described and enabled herein.
[0061] In closing, it is to be understood that the embodiments of the invention disclosed herein are illustrative of the principles of the present invention.
Other modifications that may be employed are within the scope of the invention. Thus, by way of example, but not of limitation, alternative configurations of the present invention may be utilized in accordance with the teachings herein. Accordingly, the present invention is not limited to that precisely as shown and described.
Other modifications that may be employed are within the scope of the invention. Thus, by way of example, but not of limitation, alternative configurations of the present invention may be utilized in accordance with the teachings herein. Accordingly, the present invention is not limited to that precisely as shown and described.
Claims (21)
1. A gastric banding system for the treatment of obesity, the gastric banding system comprising:
an access port having an internal fluid reservoir and a conduit having a head;
a gastric band having an inflatable portion;
a tube having an inner surface defining a first pathway, the tube connecting the internal fluid reservoir to the inflatable portion; and a first stem guard located within the first pathway of the tube and configured to prevent a needle from passing therethrough, the first stem guard including:
a first socket-shaped tail portion for receiving the head of the conduit, a first ball-shaped head portion, a first shaft portion located between the first socket-shaped tail portion and the first ball-shaped head portion, the first shaft portion defining a second pathway for carrying fluid, and a first barb portion protruding from the first shaft portion and configured to extend into the inner surface of the tube.
an access port having an internal fluid reservoir and a conduit having a head;
a gastric band having an inflatable portion;
a tube having an inner surface defining a first pathway, the tube connecting the internal fluid reservoir to the inflatable portion; and a first stem guard located within the first pathway of the tube and configured to prevent a needle from passing therethrough, the first stem guard including:
a first socket-shaped tail portion for receiving the head of the conduit, a first ball-shaped head portion, a first shaft portion located between the first socket-shaped tail portion and the first ball-shaped head portion, the first shaft portion defining a second pathway for carrying fluid, and a first barb portion protruding from the first shaft portion and configured to extend into the inner surface of the tube.
2. The gastric banding system of claim 1 wherein an outer diameter of the first barb portion is greater than a diameter of the inner surface of the tube.
3. The gastric banding system of claim 1 wherein a flexible joint is created when the first socket-shaped tail portion receives the head of the conduit.
4. The gastric banding system of claim 2 further comprising:
a second stem guard located within the first internal fluid pathway of the flexible tubing, the second stem guard having:
a second socket-shaped tail portion at a first end of the second stem guard for receiving the ball-shaped head portion of the first stem guard, a second ball-shaped head portion at a second end of the second stem guard, a second shaft portion continuing the second internal fluid pathway between the first socket-shaped tail portion of the first stem guard and the second ball-shaped head portion of the second stem guard, the second internal fluid pathway being coupled to a portion of the first internal fluid pathway, and a second barb portion located between the second ball-shaped head portion and the second socket-shaped tail portion configured to block a portion of the first internal fluid pathway between the second barb portion and the first barb portion while allowing fluid to pass through the second internal fluid pathway.
a second stem guard located within the first internal fluid pathway of the flexible tubing, the second stem guard having:
a second socket-shaped tail portion at a first end of the second stem guard for receiving the ball-shaped head portion of the first stem guard, a second ball-shaped head portion at a second end of the second stem guard, a second shaft portion continuing the second internal fluid pathway between the first socket-shaped tail portion of the first stem guard and the second ball-shaped head portion of the second stem guard, the second internal fluid pathway being coupled to a portion of the first internal fluid pathway, and a second barb portion located between the second ball-shaped head portion and the second socket-shaped tail portion configured to block a portion of the first internal fluid pathway between the second barb portion and the first barb portion while allowing fluid to pass through the second internal fluid pathway.
5. The gastric banding system of claim 4 wherein the diameter of the second barb portion is greater than a diameter of the first internal fluid pathway at the location of the second barb portion.
6. The gastric banding system of claim 4 wherein a flexible joint is created when the second socket-shaped tail portion receives the ball-shaped head portion of the first stem guard.
7. The gastric banding system of claim 5 further comprising:
a third stem guard located within the first internal fluid pathway of the flexible tubing, the third stem guard having:
a third socket-shaped tail portion at a first end of the third stem guard for receiving the ball-shaped head portion of the second stem guard, a third ball-shaped head portion at a second end of the third stem guard, a third shaft portion continuing the second internal fluid pathway between the first socket-shaped tail portion of the first stem guard and the third ball-shaped head portion of the third stem guard, the second internal fluid pathway being coupled to a portion of the first internal fluid pathway, and a third barb portion located between the third ball-shaped head portion and the third socket-shaped tail portion configured to block a portion of the first internal fluid pathway between the third barb portion and the second barb portion while allowing fluid to pass through the second internal fluid pathway.
a third stem guard located within the first internal fluid pathway of the flexible tubing, the third stem guard having:
a third socket-shaped tail portion at a first end of the third stem guard for receiving the ball-shaped head portion of the second stem guard, a third ball-shaped head portion at a second end of the third stem guard, a third shaft portion continuing the second internal fluid pathway between the first socket-shaped tail portion of the first stem guard and the third ball-shaped head portion of the third stem guard, the second internal fluid pathway being coupled to a portion of the first internal fluid pathway, and a third barb portion located between the third ball-shaped head portion and the third socket-shaped tail portion configured to block a portion of the first internal fluid pathway between the third barb portion and the second barb portion while allowing fluid to pass through the second internal fluid pathway.
8. The gastric banding system of claim 6 wherein the diameter of the third barb portion is greater than a diameter of the first internal fluid pathway at the location of the third barb portion.
9. The gastric banding system of claim 6 wherein a flexible joint is created when the third socket-shaped tail portion receives the ball-shaped head portion of the second stem guard.
10. A flexible tubing for carrying fluid between an access port and an inflatable portion of a gastric band, the flexible tubing comprising:
a body configured to have a first end attachable to a bulbous end of a conduit of the access port and a second end attachable to the inflatable portion, the body having an inner surface defining a first pathway for carrying fluid; and a first stem guard located within the first pathway of the body and configured to prevent a needle from passing therethrough, the first stem guard including:
a first socket-shaped tail portion for receiving a bulbous second end of the conduit, a first ball-shaped head portion, a first shaft portion located between the first socket-shaped tail portion and the first ball-shaped head portion, the first shaft portion defining a second pathway for carrying fluid, and a first barb portion protruding from the first shaft portion and configured to extend into the inner surface of the body.
a body configured to have a first end attachable to a bulbous end of a conduit of the access port and a second end attachable to the inflatable portion, the body having an inner surface defining a first pathway for carrying fluid; and a first stem guard located within the first pathway of the body and configured to prevent a needle from passing therethrough, the first stem guard including:
a first socket-shaped tail portion for receiving a bulbous second end of the conduit, a first ball-shaped head portion, a first shaft portion located between the first socket-shaped tail portion and the first ball-shaped head portion, the first shaft portion defining a second pathway for carrying fluid, and a first barb portion protruding from the first shaft portion and configured to extend into the inner surface of the body.
11. The flexible tubing of claim 10 wherein the diameter of the first barb is greater than a diameter of the first pathway at the location of the first barb portion.
12. The flexible tubing of claim 10 wherein a flexible joint is created when the first socket-shaped tail portion receives the bulbous end of the conduit.
13. The flexible tubing of claim 10 further comprising:
a second stem guard located within the first pathway of the body, the second stem guard having:
a second socket-shaped tail portion for receiving the first ball-shaped head portion of the first stem guard, a second ball-shaped head portion, a second shaft portion located between the second socket-shaped tail portion and the second ball-shaped head portion, the second shaft portion further defining the second pathway for carrying fluid, and a second barb portion protruding from the second shaft portion and configured to extend into the inner surface of the body.
a second stem guard located within the first pathway of the body, the second stem guard having:
a second socket-shaped tail portion for receiving the first ball-shaped head portion of the first stem guard, a second ball-shaped head portion, a second shaft portion located between the second socket-shaped tail portion and the second ball-shaped head portion, the second shaft portion further defining the second pathway for carrying fluid, and a second barb portion protruding from the second shaft portion and configured to extend into the inner surface of the body.
14. The flexible tubing of claim 13 wherein the diameter of the second barb portion is greater than a diameter of the first pathway at the location of the second barb portion.
15. The flexible tubing of claim 13 wherein a flexible joint is created when the second socket-shaped tail portion receives the ball-shaped head portion of the first stem guard.
16. A needle stem guard located internally within a first pathway of a flexible tubing for the prevention of leaks, the needle stem guard comprising:
a socket-shaped tail portion for receiving a bulbous conduit connected to a fluid reservoir of an access port, a ball-shaped head portion, a shaft portion located between the first socket-shaped tail portion and the ball-shaped head portion, the shaft portion defining a second pathway for carrying fluid, and a barb portion protruding from the shaft portion.
a socket-shaped tail portion for receiving a bulbous conduit connected to a fluid reservoir of an access port, a ball-shaped head portion, a shaft portion located between the first socket-shaped tail portion and the ball-shaped head portion, the shaft portion defining a second pathway for carrying fluid, and a barb portion protruding from the shaft portion.
17. The needle stem guard of claim 16, wherein the diameter of the barb is greater than a diameter of the first pathway at the location of the barb.
18. The needle stem guard of claim 16, wherein a flexible joint is created when the socket-shaped tail receives the bulbous conduit.
19. The needle stem guard of claim 16, wherein a distance between the socket-shaped tail and the ball-shaped head is 2.0 centimeters - 4.0 centimeters.
20. The needle stem guard of claim 16, wherein the socket-shaped tail, the ball-shaped head, the shaft and the barb are all constructed out of biocompatible materials.
21. An access port for use with a gastric band for the treatment of obesity, the access port comprising:
(A) a housing enclosing a reservoir;
(B) a conduit having a first end connected to the reservoir and a bulbous second end;
(C) a tube with an inner surface defining a first pathway and having a first end connected to the bulbous second end of the conduit and a second end connected to an inflatable portion of the gastric band; and (D) a first stem guard located within the first pathway of the tube and configured to prevent a needle with a normal application of force from passing therethrough, the first stem guard including:
(i) a first socket-shaped tail portion for receiving the bulbous second end of the conduit, (ii) a first ball-shaped head portion, (iii) a first shaft portion located between the first socket-shaped tail portion and the first ball-shaped head portion, the first shaft portion defining a second pathway for carrying fluid, and (iv) a first barb portion protruding from the first shaft portion and extending into the inner surface of the tube.
(A) a housing enclosing a reservoir;
(B) a conduit having a first end connected to the reservoir and a bulbous second end;
(C) a tube with an inner surface defining a first pathway and having a first end connected to the bulbous second end of the conduit and a second end connected to an inflatable portion of the gastric band; and (D) a first stem guard located within the first pathway of the tube and configured to prevent a needle with a normal application of force from passing therethrough, the first stem guard including:
(i) a first socket-shaped tail portion for receiving the bulbous second end of the conduit, (ii) a first ball-shaped head portion, (iii) a first shaft portion located between the first socket-shaped tail portion and the first ball-shaped head portion, the first shaft portion defining a second pathway for carrying fluid, and (iv) a first barb portion protruding from the first shaft portion and extending into the inner surface of the tube.
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US13/296,634 US8858421B2 (en) | 2011-11-15 | 2011-11-15 | Interior needle stick guard stems for tubes |
US13/296,634 | 2011-11-15 | ||
PCT/US2012/063830 WO2013074342A1 (en) | 2011-11-15 | 2012-11-07 | Interior needle stick guard stems for tubes |
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US10779980B2 (en) | 2016-04-27 | 2020-09-22 | Synerz Medical, Inc. | Intragastric device for treating obesity |
CN107049572A (en) * | 2017-01-24 | 2017-08-18 | 武汉市瑞达源科技有限公司 | A kind of adjusting means and method for being used to adjust the injection port position of implanting tissue |
KR101887096B1 (en) | 2017-03-07 | 2018-08-09 | 주식회사 메디튤립 | Subcutaneous venous access port and apparatus for ejecting drug having the same |
KR102085062B1 (en) | 2018-02-13 | 2020-03-05 | 주식회사 메디튤립 | Blood vessel access port and method of manufacturing the same |
KR102194322B1 (en) | 2019-05-21 | 2020-12-22 | 주식회사 메디튤립 | Blood vessel access port |
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- 2012-11-07 WO PCT/US2012/063830 patent/WO2013074342A1/en active Application Filing
- 2012-11-07 KR KR1020147016002A patent/KR20140091062A/en not_active Application Discontinuation
- 2012-11-07 AU AU2012339910A patent/AU2012339910A1/en not_active Abandoned
- 2012-11-07 CA CA2855202A patent/CA2855202A1/en not_active Abandoned
- 2012-11-07 EP EP12799372.3A patent/EP2779962A1/en not_active Withdrawn
- 2012-11-07 CN CN201280062374.5A patent/CN103997992B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2779962A1 (en) | 2014-09-24 |
AU2012339910A1 (en) | 2014-05-29 |
CN103997992B (en) | 2016-03-09 |
CN103997992A (en) | 2014-08-20 |
US8858421B2 (en) | 2014-10-14 |
US20130123573A1 (en) | 2013-05-16 |
WO2013074342A1 (en) | 2013-05-23 |
KR20140091062A (en) | 2014-07-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Discontinued |
Effective date: 20171107 |