US 12,508,012 B2 · Retrievable access valve

Abstract

Medical devices and methods for making and using medical devices are disclosed. An example medical device may include an access valve that may be retrieved after implantation. The access valve may include a frame having a lumen, a self-expandable member extending through the lumen, and an elastic membrane extending through the lumen and a second end of the frame to releasably seal the lumen. The access valve may releasably attach to a wall of a patient and releasably seal an opening through the wall. The access valve may be attached to the wall by placing the frame adjacent the wall, extending the self-expandable member through the opening in the wall, and expanding the self-expandable member such that the self-expandable member applies a first force against the wall and a second force opposite the first force against the frame to sandwich the wall between the self-expandable member and the frame.

Claims20

Dependent claims

A method of inserting an access device across a stomach wall, the method comprising:

advancing an access device to a target location on the stomach wall, the access device being expandable from a collapsed delivery configuration to an expanded implanted configuration, the access device including a cylindrical body region, a first expandable member disposed adjacent a first end of the cylindrical body region, and a second expandable member disposed adjacent a second end of the cylindrical body region;
and
inserting the cylindrical body region through the stomach wall and expanding the access device including the first expandable member, the cylindrical body region, and the second expandable member, wherein expanding the first expandable member results in a portion of the first expandable member rolling over on itself and extending toward the second end of the cylindrical body, wherein the first expandable member applies a compressive force in a first axial direction toward the second expandable member and the second expandable member applies a compressive force in a second axial direction toward the first expandable member.

A method of inserting an access device across a stomach wall, the method comprising:

inserting a guidewire into a patient's stomach and through the stomach wall at a target location;
advancing a self-expanding access device over the guidewire to the target location, the access device being expandable from a collapsed delivery configuration to an expanded implanted configuration, the access device including a cylindrical body region, a first expandable member disposed adjacent a first end of the cylindrical body region, and a second expandable member disposed adjacent a second end of the cylindrical body region;
and
inserting the cylindrical body region through the stomach wall and expanding the access device including the first expandable member, the cylindrical body region, and the second expandable member, such that the first expandable member is positioned inside the stomach, the second expandable member is positioned outside the stomach, and the cylindrical body region extends across the stomach wall, wherein during expansion a portion of the second expandable member curls radially outward away from the cylindrical body region and then towards the first expandable member.

1 more element

Dependencies are inferred from the claim text.

Retrievable access valve

Life of this patent

Retrievable access valve

Life of this patent

Abstract

Claims20