REMOVAL AND REPOSITIONING DEVICES

摘要

A gastrointestinal implant device includes a flexible, floppy sleeve, open at both ends, that extends into the duodenum. The device further includes a collapsible anchor coupled to the proximal portion of the sleeve. The device further includes a drawstring that is threaded through a proximal end of the anchor, and barbs that extend from the exterior surface of the anchor. The collapsible anchor can be a wave anchor. The drawstring can be used to collapse at least a proximal portion of the implant device. This is useful in removing or repositioning the implant device.

主权项

1. A device combining a positioning device for positioning an implantable device within a natural bodily lumen with the implantable device, comprising:
an endoscope defining a lumen, the endoscope providing an outer tube of the positioning device; an inner tube defining a lumen and adapted for insertion into the endoscope; an elongated member having a proximal end and a distal end, the elongated member slidably disposed within the lumen of the inner tube; a grasper disposed at the distal end of the elongated member, adapted to engage the implantable device to collapse at least a portion of the implantable device when operated; an atraumatic flared retrieval hood attached to and fitting over the distal end of the endoscope; and the implantable device, wherein the implantable device comprises:
a flexible, floppy sleeve, open at both ends, to extend into the duodenum;a collapsible anchor coupled to a proximal portion of the sleeve; anda drawstring threaded through a proximal end of the anchor and drawn into the inner tube by the grasper; at least a proximal portion of the anchor being captured within the retrieval hood.