Patent ID: 7666180
Filing Date: 2010-02-23
Classification: A61B,A61F

Abstract:
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.