METHOD OF DELIVERING AN INTRAGASTRIC DEVICE FOR TREATING OBESITY

• US 20090164028A1
• Filed: 12/21/2007
• Published: 06/25/2009
• Est. Priority Date: 12/21/2007
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Wilson-Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Chen, Steve Kaipin
• Granted Patent: US 7,883,524 B2
• Time in Patent Office: Days
• US Class Current: 623/23.650
• CPC Class Codes: A61F 5/0036 Intragastrical devices
• CPC Class Codes: A61F 5/0089 Instruments for placement or removal

Abstract

An intragastric member and method of delivery thereof are described. Delivery of the intragastric member is enabled by partitioning the intragastric member into discrete bundles with retaining members that are circumferentially disposed along the longitudinal length of the intragastric member. Formation of the intragastric member into bundles facilitates controlled delivery into the gastric lumen. The use of suture ties enables deployment of the intragastric member into the gastric lumen. The distal ends of the suture ties are affixed to the bundles. Pulling on the proximal free end of each of the suture ties enables the corresponding bundles to be advanced distally along a delivery tube. The suture ties are pulled until each of the bundles slide off from the delivery tube and enter into the gastric lumen

Claims

1. An intragastric device for the treatment of obesity, the intragastric device comprising:

an intragastric member comprising a generally tubular sheet of material, the intragastric member partitioned into a first bundle and a second bundle disposed distal of the first bundle, the first and the second bundles formed by a first retaining member and a second retaining member, the second retaining member disposed distal of the first retaining member, the first and second bundles extending circumferentially to form a lumen;

a first suture tie and a second suture tie, the first suture tie comprising a first proximal end and a first distal end, the first proximal end being a first free end that extends within the lumen and the first distal end affixed to the first retaining member, the second suture tie comprising a second proximal end and a second distal end, the second proximal end being a second free end that extends within the lumen and the second distal end affixed to the second retaining member;

wherein the first suture tie comprises a first ratcheted element and the second suture tie comprises a second ratcheted element, the first and the second ratcheted elements adapted to cinch the first and the second bundles.

2. The intragastric device according to claim 1, wherein the intragastric member comprise a meshed sock-like structure.

3. The intragastric device according to claim 1, wherein the first and the second bundles are disposed onto a delivery tube.

4. The intragastric device according to claim 1, wherein the intragastric member has an apparent volume ranging between about 500 mL to about 1500 mL.

5. The intragastric device according to claim 3, wherein the first suture comprises a first proximal end that extends within the delivery tube and a second distal end that extends over the first bundle.

6. The intragastric device according to claim 1, wherein the second suture tie comprises a second proximal end that extends within the delivery tube and a second distal end that extends over the second bundle.

7. The intragastric device according to claim 1, the first and the second bundles movable between a first configuration and a second configuration.

8. The intragastric device according to claim 7, wherein the first configuration comprises the first and the second bundles being constrained about a delivery tube at discrete intervals.

9. The intragastric device according to claim 7, wherein the second configuration comprises the first and the second bundles being compressed.

10. The intragastric device according to claim 2, wherein the first and the second retaining members are interwoven about the mesh.

11. The intragastric device according to claim 2, wherein the first and the second suture ties are interwoven with the mesh.

12. An intragastric device for the treatment of obesity, the intragastric device comprising:

a delivery tube comprising a proximal end, a distal end, and a lumen extending there between;

an intragastric member comprising a generally tubular sheet of material, the intragastric member partitioned into a first bundle and a second bundle disposed distal of the first bundle, the first and the second bundles formed by a first retaining member and a second retaining member disposed distal of the first retaining member, the first and the second bundles being slidably disposed along the delivery tube and extending circumferentially about the delivery tube; and

a first suture tie and a second suture tie, the first suture tie comprising a first proximal end and a first distal end, the first proximal end being a first free end that extends within the lumen of the delivery tube and the first distal end affixed to the first retaining member, the second suture tie comprising a second proximal end and a second distal end, the second proximal end being a second free end that extends within the lumen of the delivery tube and the second distal end affixed to the second retaining member.

13. The intragastric device according to claim 12, wherein the first and the second bundles are in a compressed configuration when slidably removed from the delivery tube.

14. The intragastric device according to claim 12, the intragastric member further partitioned into a third bundle by a third retaining member, the third retaining member positioned distally of the second retaining member, the third bundle being slidably disposed along the delivery tube, and the third bundle extending circumferentially about the delivery tube.

15. The intragastric device according to claim 14, further comprising a third suture tie, the third suture tie comprising a third proximal end and a third distal end, the third proximal end being a third free end that extends within the lumen of the delivery tube and the third distal end affixed to the third retaining member.

16. A method of treatment of obesity in mammals, the method comprising the steps of:

(a) providing an intragastric member comprising a generally tubular sheet of material;

(b) securing the intragastric member onto a delivery tube with a retaining member, the retaining member extending circumferentially about the intragastric member to partition the intragastric member into a first and a second bundle, the second bundle positioned proximal of the first bundle;

(c) securing the retaining member with a suture tie comprising a proximal and a distal end, the proximal end being a free end that extends within a lumen and the distal end affixed to the retaining member, and

(d) pulling the proximal end of the suture tie in a proximal direction through the lumen so as to advance the first and the second bundles distally along the delivery tube.

17. The method according to claim 16, wherein the step of advancing the first and the second bundles distally comprises compressing the first and the second bundles at a distal end of the delivery tube.

18. The method according to claim 16, further comprising the step of:

(e) pulling the proximal end of the suture tie through the lumen until a proximal end of the first bundle distally moves past the distal end of the delivery tube into a gastric lumen.

19. The method according to claim 18, further comprising the step of:

(f) pulling the proximal end of the suture tie through the lumen until a proximal end of the second bundle distally moves past the distal end of the delivery tube into the gastric lumen.

20. The method according to claim 19, further comprising the step of:

(g) deploying a third bundle within the gastric lumen, wherein the first, the second, and the third bundles occupy a volume in the gastric lumen sufficient to prevent passing of the first, the second, and the third bundles through a pylorus; and

(h) cinching the first, the second, and the third bundles with one or more ratcheting elements.