Gastric restrictor assembly and method of use
First Claim
Patent Images
1. 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 and 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,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,wherein each of the hoops includes an arcuate body having a series of teeth formed thereon, andwherein the attachment mechanism further includes a drive member, the drive member including a helical thread which is positioned to mesh with the teeth of each of the hoops, the drive member being movable to move the helical thread in relation to the hoop teeth to advance each of the hoops from the first position to the second position.
2 Assignments
0 Petitions
Accused Products
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.
264 Citations
25 Claims
-
1. 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 and 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, 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, wherein each of the hoops includes an arcuate body having a series of teeth formed thereon, and wherein the attachment mechanism further includes a drive member, the drive member including a helical thread which is positioned to mesh with the teeth of each of the hoops, the drive member being movable to move the helical thread in relation to the hoop teeth to advance each of the hoops from the first position to the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for restricting a portion of the digestive tract comprising the following steps:
-
i) positioning a gastric restrictor assembly within a portion of the digestive tract, the gastric restrictor assembly including a valve assembly defining a throughbore and an attachment mechanism including at least one fastening element for securing the gastric restrictor assembly within the digestive tract; and ii) actuating the attachment mechanism to secure the gastric assembly within the digestive tract, 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, wherein each of the hoops includes an arcuate body having a series of teeth formed thereon, and wherein the attachment mechanism further includes a drive member, the drive member including a helical thread which is positioned to mesh with the teeth of each of the hoops, the drive member being movable to move the helical thread in relation to the hoop teeth to advance each of the hoops from the first position to the second position. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. 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; and an attachment mechanism supported by the housing, the attachment mechanism having at least one fastening element and being actuable to move the fastening element to a position securing the gastric restrictor assembly to an inner wall of a lumen, 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, wherein each of the hoops includes an arcuate body having a series of teeth formed thereon, and wherein the attachment mechanism further includes a drive member, the drive member including a helical thread which is positioned to mesh with the teeth of each of the hoops, the drive member being movable to move the helical thread in relation to the hoop teeth to advance each of the hoops from the first position to the second position. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
-
Specification