W. L. Gore & Associates, Inc.

Christopher S Michalak

Matthew A Johnson

Nathan K Mooney

An implantable medical device for sealing and repairing defects in a body tissue or for creating an anastomosis includes a frame and a covering material. In some embodiments, the frame includes a single continuously wound wire that defines an apposition portion, a defect-occupying portion, and a sealing portion. In some embodiments, the tissue-sealing and anastomosis devices provided herein are well-suited for use in the GI tract including the small bowel and colon. In some embodiments, a two-part frame construct facilitates independent tailoring of apposition forces and radial forces exerted on tissues by the two-part frame.

Occluder and anastomosis devices

A stent graft device that includes a frame, a cover material covering the frame, and an anchoring member having an adjustable geometry is provided. The anchoring member may be incorporated as part of the frame or coupled thereto. The anchoring member may be formed of a material having a tensile strength such that it can be bent, straightened, or otherwise changed in shape. Tissue growth over and/or around the anchoring member anchors the stent graft device within a lumen. During removal of the stent graft device, the geometry of the anchoring member changes to allow the anchoring member to be removed from the tissue growth along a removal path with minimal trauma. The design and/or shape of the anchoring member is not particularly limited so long as the anchoring member has an adjustable geometry that permits tissue overgrowth and subsequent removal from the tissue overgrowth with minimal trauma.

Stent graft device with anchoring members having adjustable geometries

A medical securing device that includes (1) a pointed tip and (2) a depth stop is provided. The depth stop includes an apex portion coupled to a trough portion. The depth stop limits the depth of penetration of the pointed tip into a wall of a body lumen. In one or more embodiment, the medical securing device may be constructed from a length of shape memory wire. Thus, during deployment, the medical securing device may spring away from a medical device to which the medical securing device is coupled such that the pointed tip makes contact with and punctures, to a limited depth, a body lumen wall. In various embodiments, a pair of barbs may be coupled to from an integral two pronged barb.

Devices and methods for limiting a depth of penetration for an anchor within an anatomy

This document describes intralumenal stent graft devices with integrated anchor members that are selectively deployable in situ. The deployment of the anchor members is also reversible, to thereby facilitate retrieval of the stent graft device. These stent graft devices are well-suited for sealing and repairing defects in a body lumen wall. Such defects can include, but are not limited to, aneurysms and lumen wall openings. In some embodiments, the intralumenal stent graft devices provided herein are well-suited for use in the GI tract including the colon. That is the case because the integrated anchor members provide the stent graft devices with a high level of migration resistance, whereby the stent grafts can remain resiliently located in a desired position within the GI tract despite the peristaltic movements of the GI tract.

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Elkton, MD, United States of America

Christopher S Michalak