CA2710755A1 - Delivery system for intragastric bag - Google Patents
Delivery system for intragastric bag Download PDFInfo
- Publication number
- CA2710755A1 CA2710755A1 CA2710755A CA2710755A CA2710755A1 CA 2710755 A1 CA2710755 A1 CA 2710755A1 CA 2710755 A CA2710755 A CA 2710755A CA 2710755 A CA2710755 A CA 2710755A CA 2710755 A1 CA2710755 A1 CA 2710755A1
- Authority
- CA
- Canada
- Prior art keywords
- outer member
- bag
- bundles
- delivery system
- suture
- 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.)
- Granted
Links
- 230000002496 gastric effect Effects 0.000 claims abstract 11
- 238000000034 method Methods 0.000 claims abstract 9
- 239000011324 bead Substances 0.000 claims 8
- 208000008589 Obesity Diseases 0.000 claims 5
- 235000020824 obesity Nutrition 0.000 claims 5
- 239000003550 marker Substances 0.000 claims 2
- 238000012544 monitoring process Methods 0.000 claims 2
- 206010004542 Bezoar Diseases 0.000 claims 1
- 241000124008 Mammalia Species 0.000 claims 1
- 230000001079 digestive effect Effects 0.000 claims 1
- 235000012489 doughnuts Nutrition 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 210000001187 pylorus Anatomy 0.000 claims 1
- 238000000638 solvent extraction Methods 0.000 claims 1
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
- A61F5/0089—Instruments for placement or removal
-
- 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
- A61F5/0036—Intragastrical devices
Abstract
A delivery system (100) for introducing a bundled intragastric bag (130) into a gastric lumen (150) are described. The delivery system includes a pushing mechanism movable between an unexpanded and expanded configuration.
The pushing mechanism (196) in its expanded configuration pushes each of the bundles (310) of the bag into the gastric lumen. A suture (170, 180) strand is periodically pulled during the procedure to help create doughnut- shaped bundles. Another suture strand extends between a proximal button and distal button of the deployed assembly to maintain the doughnut- shaped bundle structure.
The pushing mechanism (196) in its expanded configuration pushes each of the bundles (310) of the bag into the gastric lumen. A suture (170, 180) strand is periodically pulled during the procedure to help create doughnut- shaped bundles. Another suture strand extends between a proximal button and distal button of the deployed assembly to maintain the doughnut- shaped bundle structure.
Claims (27)
1. A delivery system for introducing an obesity device into a gastric lumen, comprising:
an overtube including a proximal end and a distal end;
an inner member having a first distal end;
an outer member including a second distal end, the outer member slidably disposed over the inner member, the outer member comprising a pushing mechanism disposed at the second distal end, the pushing mechanism moveable between an expanded configuration and an unexpanded configuration, wherein the pushing mechanism in the expanded configuration is adapted to push an incremental length of the obesity device into the gastric lumen; and an intragastric bag disposed over the outer member, the intragastric bag comprising a plurality of bundles.
an overtube including a proximal end and a distal end;
an inner member having a first distal end;
an outer member including a second distal end, the outer member slidably disposed over the inner member, the outer member comprising a pushing mechanism disposed at the second distal end, the pushing mechanism moveable between an expanded configuration and an unexpanded configuration, wherein the pushing mechanism in the expanded configuration is adapted to push an incremental length of the obesity device into the gastric lumen; and an intragastric bag disposed over the outer member, the intragastric bag comprising a plurality of bundles.
2. The delivery system of claim 1, further comprising a first suture strand looped through a suture bead and extending to a distal button of the device, the first suture strand being affixed to the distal button disposed at a distal end of the obesity device; and a second suture strand looped through the suture bead and proximally extending along the inner member, the second suture strand terminating at a first free end and a second free end at a proximal end of the inner member.
3. The delivery system of claim 1, wherein the obesity device is disposed over the outer member, the obesity device partitioned into a plurality of bundles by a plurality of retaining elements.
4. The delivery system of claim 1, wherein the pushing mechanism comprises a balloon.
5. The delivery system of claim 1, wherein the pushing mechanism comprises a plurality of segments disposed about the second distal end of the outer member, the second distal end of the outer member being fixedly connected to the first distal end of the inner member.
6. The delivery system of claim 5, wherein the first and the second distal ends are fixedly connected by a heat bond.
7. The delivery system of claim 1, wherein a plurality of retaining elements are disposed circumferentially about the intragastric bag to form the plurality of bundles.
8. The delivery system of claim 7, wherein the plurality of retaining elements comprises o-ring elements.
9. The delivery system of claim 5, wherein each of the plurality of segments in the expanded configuration span a lateral length greater than a diameter of each of a plurality of retaining elements.
10. The delivery system of claim 4, wherein the balloon in the expanded configuration has a diameter larger than a diameter of each of a plurality of retaining elements.
11. The delivery system of claim 8, wherein the outer member comprises a plurality of markings, wherein the plurality of markings help to visually determine the incremental length that the plurality of bundles are pushed into the gastric lumen, and further wherein the plurality of markings help to visually determine the incremental length that the pushing mechanism in the unexpanded configuration is being retracted.
12. The delivery system of claim 8, further comprising an air pump connected to a tuohy borst adaptor for injecting air into each of the plurality of bundles.
13. A method for introducing an intragastric bag into a gastric lumen, comprising the steps of:
(a) providing a delivery system comprising:
an overtube including a proximal end and a distal end;
an inner member having a first distal end;
an outer member including a second distal end, the outer member slidably disposed over the inner member, the outer member comprising a pushing mechanism disposed at the second distal end, the pushing mechanism moveable between a expanded configuration and an unexpanded configuration; wherein the pushing mechanism in the expanded configuration spans a distance sufficient to push an incremental length of the bag into the gastric lumen;
(b) partitioning the intragastric bag into a plurality of bundles with a plurality of retaining elements, the plurality of retaining elements being disposed circumferentially about the plurality of bundles, the plurality of retaining elements being spaced apart a predetermined distance from each other;
(c) loading the intragastric bag over the outer member;
(d) proximally pulling the outer member through a first retaining element from the plurality of retaining elements with the pushing mechanism being configured in the unexpanded configuration and positioned in the bag proximal and adjacent to the first retaining element;
(e) expanding the pushing mechanism;
(f) moving the outer member in a distal direction so as to push the first retaining element from the plurality of retaining elements and a first bundle of the plurality of bundles into the gastric lumen.
(a) providing a delivery system comprising:
an overtube including a proximal end and a distal end;
an inner member having a first distal end;
an outer member including a second distal end, the outer member slidably disposed over the inner member, the outer member comprising a pushing mechanism disposed at the second distal end, the pushing mechanism moveable between a expanded configuration and an unexpanded configuration; wherein the pushing mechanism in the expanded configuration spans a distance sufficient to push an incremental length of the bag into the gastric lumen;
(b) partitioning the intragastric bag into a plurality of bundles with a plurality of retaining elements, the plurality of retaining elements being disposed circumferentially about the plurality of bundles, the plurality of retaining elements being spaced apart a predetermined distance from each other;
(c) loading the intragastric bag over the outer member;
(d) proximally pulling the outer member through a first retaining element from the plurality of retaining elements with the pushing mechanism being configured in the unexpanded configuration and positioned in the bag proximal and adjacent to the first retaining element;
(e) expanding the pushing mechanism;
(f) moving the outer member in a distal direction so as to push the first retaining element from the plurality of retaining elements and a first bundle of the plurality of bundles into the gastric lumen.
14. The method of claim 13, further comprising the steps of:
(g) unexpanding the pushing mechanism; and (h) proximally pulling the outer member through a second retaining element from the plurality of retaining elements such that the pushing mechanism is configured in the unexpanded configuration and positioned in the bag proximal and adjacent to the second retaining element from the plurality of retaining elements;
(i) expanding the pushing mechanism;
(j) moving the outer member in a distal direction; and (k) pushing the second retaining element from the plurality of retaining elements so as to push a second bundle of the plurality of bundles into the gastric lumen.
(g) unexpanding the pushing mechanism; and (h) proximally pulling the outer member through a second retaining element from the plurality of retaining elements such that the pushing mechanism is configured in the unexpanded configuration and positioned in the bag proximal and adjacent to the second retaining element from the plurality of retaining elements;
(i) expanding the pushing mechanism;
(j) moving the outer member in a distal direction; and (k) pushing the second retaining element from the plurality of retaining elements so as to push a second bundle of the plurality of bundles into the gastric lumen.
15. The method of claim 13, wherein step (d) further comprises visually monitoring a location of a first marker located about the outer member to determine how far to proximally pull back the outer member.
16. The method of claim 13, wherein step (f) further comprises visually monitoring a location of a second marker located about the outer member to determine how far to distally push the outer member.
17. The method of claim 13, further comprising the steps of:
(g) providing a first suture strand looped through a suture bead and extending to a distal button of the device, the first suture strand being affixed to the distal button disposed at a distal end of the bag; and a second suture strand looped through the suture bead and proximally extending along the inner member, the second suture strand terminating at a first end and a second free end at a proximal end of the inner member;
(h) injecting air into the first bundle; and (i) pulling the first and the second free ends of the second suture strand such that the first bundle forms a first collapsed doughnut-shaped configuration within the gastric lumen.
(g) providing a first suture strand looped through a suture bead and extending to a distal button of the device, the first suture strand being affixed to the distal button disposed at a distal end of the bag; and a second suture strand looped through the suture bead and proximally extending along the inner member, the second suture strand terminating at a first end and a second free end at a proximal end of the inner member;
(h) injecting air into the first bundle; and (i) pulling the first and the second free ends of the second suture strand such that the first bundle forms a first collapsed doughnut-shaped configuration within the gastric lumen.
18. The method of claim 13, further comprising the steps of:
(l) providing a first suture strand looped through a suture bead and extending to a distal button of the device, the first suture strand being affixed to the distal button disposed at a distal end of the bag; and a second suture strand looped through the suture bead and proximally extending along the inner member, the second suture strand terminating at a first end and a second free end at a proximal end of the inner member;
(m) injecting air into a second bundle; and (n) pulling the first and the second free ends of the second suture strand such that the second bundle forms a second collapsed doughnut-shaped configuration within the gastric lumen, the second bundle being adjacent to the first bundle.
(l) providing a first suture strand looped through a suture bead and extending to a distal button of the device, the first suture strand being affixed to the distal button disposed at a distal end of the bag; and a second suture strand looped through the suture bead and proximally extending along the inner member, the second suture strand terminating at a first end and a second free end at a proximal end of the inner member;
(m) injecting air into a second bundle; and (n) pulling the first and the second free ends of the second suture strand such that the second bundle forms a second collapsed doughnut-shaped configuration within the gastric lumen, the second bundle being adjacent to the first bundle.
19. The method of claim 17, further comprising the step of:
(i) withdrawing the outer member;
(j) threading the first suture strand through a proximal button; and (k) snapping the proximal button to the suture bead.
(i) withdrawing the outer member;
(j) threading the first suture strand through a proximal button; and (k) snapping the proximal button to the suture bead.
20. The method of claim 19, further comprising the steps of:
(l) incising the first and the second free ends of the second suture strand from the proximal button; and (m) removing the second suture strand.
(l) incising the first and the second free ends of the second suture strand from the proximal button; and (m) removing the second suture strand.
21. An intragastric bag comprising a digestive-resistant material in a configuration sufficiently large to prevent the intragastric bag from passing through a mammal's pylorus, wherein the intragastric bag is configured to function as an artificial bezoar, and further wherein the bag comprises a plurality of doughnut-shaped bundles, each of the plurality of doughnut-shaped bundles having atramautic rounded edges.
22. The intragastric bag of claim 21, wherein each of the plurality of doughnut shaped bundles is interconnected by a suture strand, the suture strand being affixed to a proximal button and a distal button.
23. The intragastric bag of claim 22, wherein the proximal button is secured to a suture bead.
24. The intragastric bag of claim 22, wherein the bag comprises retaining elements that partition the bag into the plurality of doughnut-shaped bundles.
25. The intragastric bag of claim 22, wherein each of the plurality of the doughnut-shaped bundles comprises a flattened disc-shaped bundle.
26. The intragastric bag of claim 22, each of the plurality of doughnut-shaped bundles being stacked against each other in a direction substantially perpendicular to the suture strand.
27. The intragastric bag of claim 21, wherein each of the plurality of doughnut-shaped bundles is inflatable and compressible.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/965,531 US8016851B2 (en) | 2007-12-27 | 2007-12-27 | Delivery system and method of delivery for treating obesity |
US11/965,531 | 2007-12-27 | ||
PCT/US2008/086975 WO2009085747A1 (en) | 2007-12-27 | 2008-12-16 | Delivery system for intragastric bag |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2710755A1 true CA2710755A1 (en) | 2009-07-09 |
CA2710755C CA2710755C (en) | 2012-12-04 |
Family
ID=40436384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2710755A Active CA2710755C (en) | 2007-12-27 | 2008-12-16 | Delivery system for intragastric bag |
Country Status (7)
Country | Link |
---|---|
US (1) | US8016851B2 (en) |
EP (1) | EP2224888B1 (en) |
JP (1) | JP5276117B2 (en) |
AT (1) | ATE550002T1 (en) |
AU (1) | AU2008343329B2 (en) |
CA (1) | CA2710755C (en) |
WO (1) | WO2009085747A1 (en) |
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JP2011508630A (en) | 2011-03-17 |
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AU2008343329A1 (en) | 2009-07-09 |
EP2224888A1 (en) | 2010-09-08 |
WO2009085747A1 (en) | 2009-07-09 |
CA2710755C (en) | 2012-12-04 |
EP2224888B1 (en) | 2012-03-21 |
JP5276117B2 (en) | 2013-08-28 |
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