Gastric Restrictor Assembly And Method Of Use

• US 20100145472A1
• Filed: 02/17/2010
• Published: 06/10/2010
• Est. Priority Date: 05/20/2005
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Holsten, Henry E., Viola, Frank
• Granted Patent: US 8,114,010 B2
• Time in Patent Office: Days
• US Class Current: 623/23.650
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 2017/07214 Stapler heads
• CPC Class Codes: A61B 2017/081 Tissue approximator A61B2017/1103, A61B17/8866 take precedence
• CPC Class Codes: A61F 5/0079 Pyloric or esophageal obstructions
• CPC Class Codes: A61F 5/0086 using clamps, folding means or the like

Abstract

A gastric restrictor assembly for positioning within the digestive tract, e.g., stomach, of a patient to treat obesity is disclosed. The gastric restrictor assembly includes an attachment mechanism for attaching the assembly within a body lumen and a valve assembly for adjusting the diameter of a throughbore defined by valve assembly. The gastric restrictor includes first and second actuators which can be actuated transorally for operating the attachment mechanism and the valve assembly.

Claims

1-28. -28. (canceled)

29. A gastric restrictor assembly comprising:

a housing;

a valve assembly supported within the housing, the valve assembly defining a throughbore through the housing and being actuable to selectively adjust an area of the throughbore;

an attachment mechanism supported by the housing, the attachment mechanism having at least one fastening element and being actuable to move the at least one fastening element to a position securing the gastric restrictor assembly to an inner wall of a lumen;

a first actuator supported on the housing and operatively associated with valve assembly, the first actuator being positioned to be transorally actuable to operate the valve assembly to selectively adjust the area of the throughbore; and

a second actuator supported on the housing and operatively associated with the attachment mechanism, the second actuator being positioned to be transorally actuable to move the at least one fastening element to a position securing the gastric restrictor assembly to an inner wall of a lumen.

30. A gastric restrictor assembly according to claim 29, wherein the at least one fastening element includes a plurality of arcuate hoops positioned about the housing, the hoops being movable from a first position located substantially within the housing to a second position extending from the housing.

31. A gastric restrictor assembly according to claim 30, wherein each of the hoops includes an arcuate body having a tip configured to penetrate body tissue.

32. A gastric restrictor assembly according to claim 31, wherein each of the hoops includes an arcuate body having a series of teeth formed thereon.

37. A gastric restrictor assembly comprising:

a housing;

a valve assembly supported within the housing, the valve assembly defining a throughbore through the housing and being actuable to selectively adjust an area of the throughbore;

an attachment mechanism supported by the housing, the attachment mechanism having at least one fastening element and being actuable to move the at least one fastening element to a position securing the gastric restrictor assembly to an inner wall of a lumen;

a first actuator supported on the housing and operatively associated with valve assembly, the first actuator being positioned to be transorally actuable to operate the valve assembly to selectively adjust the area of the throughbore; and

a second actuator supported on the housing and operatively associated with the attachment mechanism, the second actuator being positioned to be transorally actuable to move the at least one fastening element to a position securing the gastric restrictor assembly to an inner wall of a lumen,

the throughbore having a configuration selected from the group consisting of a rectangular configuration;

a square configuration; and

an oblong configuration.

38. A gastric restrictor assembly according to claim 37, wherein the at least one fastening element includes a plurality of arcuate hoops positioned about the housing, the hoops being movable from a first position located substantially within the housing to a second position extending from the housing.

39. A gastric restrictor assembly according to claim 38, wherein each of the hoops includes an arcuate body having a tip configured to penetrate body tissue.

40. A gastric restrictor assembly according to claim 39, wherein each of the hoops includes an arcuate body having a series of teeth formed thereon.

41. A gastric restrictor assembly according to claim 37, wherein the valve assembly includes a plurality of vanes which can be selectively repositioned transorally by the first actuator to change the area of the valve assembly throughbore.

42. A gastric restrictor assembly according to claim 42, wherein the valve assembly further includes a first stationary member and a second movable member, the plurality of vanes being pivotally secured to the first stationary member, and the second movable member being movable between a first position and a second position to change the area of the throughbore.

43. A gastric restrictor assembly according to claim 42, wherein the second movable member includes a plurality of cam members and each of the plurality of vanes includes a slot dimensioned to receive one of the plurality of cam members.

44. A gastric restrictor assembly according to claim 43, wherein the second movable member includes a rotatable ring, the rotatable ring having a plurality of gear teeth positioned to engage an actuator rotatably supported on the housing.