System and method for anchoring stomach implant

• US 20080208355A1
• Filed: 09/14/2007
• Published: 08/28/2008
• Est. Priority Date: 09/15/2006
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Stack, Richard S., Athas, William L.
• Granted Patent: US 9,314,361 B2
• Time in Patent Office: Days
• US Class Current: 623/23.65
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 2017/0404 Buttons
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0437 the barbs being resilient or spring-like
• CPC Class Codes: A61B 2017/0464 for soft tissue
• CPC Class Codes: A61B 2017/0647 having one single leg, e.g. tacks
• CPC Class Codes: A61F 5/0003 Apparatus for the treatment of obesity; Anti-eating devices surgical instruments or methods for treatment of obesity, devices specially adapted therefor A61B17/00; hollow or tubular parts of organs A61F2/04
• CPC Class Codes: A61F 5/0013 Implantable devices or invasive measures
• CPC Class Codes: A61F 5/0036 Intragastrical devices
• CPC Class Codes: A61F 5/0069 in the wall of the stomach

Abstract

A gastric implant system includes a gastric implant such as a restrictive pouch or a gastric balloon, an anchor passable through the mouth and stomach and further through the stomach wall into engageable with abdominal wall tissue. When the anchor is engaged to abdominal wall tissue, the stomach wall and abdominal wall are brought into contact with one another such that a proximal portion of the anchor extends into the stomach interior while a distal portion of the anchor remains engaged to the abdominal wall. A locking element coupled to the proximal section of the anchor is used to maintain contact between the stomach wall and abdominal wall. The gastric implant is advanced through the oral cavity into the stomach and is coupled to the anchor.

Claims

1. A method of anchoring a stomach implant, comprising the steps of:

introducing an anchor transorally into a stomach;

passing the anchor through a wall of the stomach and engaging the anchor to an abdominal wall, a portion of the anchor remaining within the stomach;

positioning a stomach implant within the stomach; and

coupling the stomach implant to the portion of the anchor within the stomach.

2. The method of claim 1, further including positioning the stomach wall and abdominal wall into contact with one another.

3. The method of claim 2, further including retaining contact between the stomach wall and abdominal wall using an element on the portion of the anchor within the stomach.

4. The method of claim 2, further including allowing tissue growth to occur between the stomach wall and abdominal wall.

5. The method of claim 4, wherein the stomach implant is coupled to the anchor after allowing tissue growth to occur.

6. The method of claim 1, wherein passing the anchor includes piercing the stomach wall using the anchor.

7. The method of claim 1, wherein the method includes positioning the anchor within a hollow needle, and wherein passing the anchor includes piercing the stomach wall using the hollow needle.

8. The method of claim 1, wherein engaging the anchor to the abdominal wall includes engaging the anchor and fascia of the abdominal wall.

9. The method of claim 1, wherein positioning a stomach implant includes positioning a flow restrictive device.

10. The method of claim 1, wherein positioning a stomach implant includes positioning a gastric space occupier.

11. A gastric implant system, comprising:

a cannula extendable through a mouth into a stomach;

an anchor;

a gastric implant; and

instructions for use instructing the user to extend the cannula through a mouth in to a stomach, pass an anchor through the cannula and through a stomach wall and to engage the anchor to an abdominal wall with a portion of the anchor extending into the stomach, and to couple the gastric implant to the portion of the implant extending into the stomach.

12. The gastric implant system of claim 11, wherein the gastric implant is a restrictive orifice for treatment of obesity.

13. The gastric implant system of claim 11, wherein the gastric implant is an obstructive orifice for treatment of obesity.

14. The gastric implant system of claim 11, wherein the anchor includes a lock, and wherein the instructions for use include instructions to bring the stomach wall into contact with the abdominal wall, and engage the lock within the stomach to maintain contact between the stomach wall and the abdominal wall.

15. The gastric implant system of claim 14, wherein the anchor includes an distal tissue engaging element and a proximal portion proportioned to extend through a stomach wall and into a stomach when the distal portion is engaged with abdominal wall tissue, and wherein the lock includes a collar slidable on the proximal portion into abutment with stomach wall tissue and lockable to the proximal portion to retain the collar position in abutment with the stomach wall.

16. The gastric implant of claim 11, further including a tether coupled to the anchor, the tether proportioned to extend from the proximal section through the esophagus and stomach and out of the oral cavity when the anchor is engaged with abdominal wall tissue.

17. The gastric implant of claim 15, wherein the gastric implant is attachable to the collar.

18. The gastric implant of claim 11, further including a detachable spacer between the collar and the tissue engaging element.

19. A gastric implant system including:

a gastric implant;

an anchor having a distal portion engageable with abdominal wall tissue within a living body, and a proximal section proportioned to extend from the distal portion, through a stomach wall and into a stomach when the distal portion is engaged with abdominal wall tissue; and

a locking element coupled to the proximal section of the anchor, the locking element having an unlocked position in which the locking element is moveable relative to the anchor into a position in abutment with an interior surface of a stomach wall, and a locked position in which the locking element engages a portion of the anchor.

20. The implant system of claim 19, wherein the gastric implant is a restrictive implant for treating obesity.

21. The implant system of claim 20, wherein the gastric implant is an obstructive implant for treating obesity.

22. The implant system of claim 19, wherein the distal portion of the anchor includes an expandable tip section.

23. The implant system of claim 19, further including a tether coupled to the proximal section, the tether proportioned to extend from the proximal section through the esophagus and stomach and out of the oral cavity when the anchor is engaged with abdominal wall tissue.

24. The implant system of claim 19, wherein the proximal section includes an elongate member and wherein the locking element includes a collar slidable on the elongate member.

25. The implant system of claim 24, wherein the collar is lockable to features on the elongate member.