Occlusive device with expandable member

Patent metadata

Field	Value
Publication number	US-11925356-B2
Application number	US-202117173549-A
Country	US
Kind code	B2
Filing date	Feb 11, 2021
Priority date	Dec 18, 2017
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

An example medical device for occluding the left atrial appendage includes an expandable member having a first end region, a second end region and an inflation cavity. The medical device also includes a plurality of spine members coupled to the expandable member, the plurality of spine members spaced circumferentially around an outer surface of the expandable member. Additionally, the medical device includes a valve member extending at least partially into the inflation cavity, wherein the plurality of spine members are configured to position the medical device within an opening of the left atrial appendage and wherein the expandable member is configured to expand and seal the opening of the left atrial appendage.

First claim

What is claimed is:

1. A medical device for occluding the left atrial appendage, comprising:
an expandable member defining a first end region with a distal end, a second end region and an inflation cavity;
a plurality of spine members coupled to the expandable member, the plurality of spine members spaced circumferentially around an outer surface of the expandable member, the spine members extend distally from the second region to the first region, and the spine members terminate prior to reaching the distal end; and
a valve member extending at least partially into the inflation cavity;
wherein the expandable member extends distal of the plurality of spine members;
wherein the plurality of spine members are configured to position the medical device within an opening of the left atrial appendage;
wherein the expandable member is configured to expand and seal the opening of the left atrial appendage.

2. The medical device of claim 1 , wherein the second end region includes a bottom surface and wherein at least a portion of each of the spine members is positioned along the bottom surface.

3. The medical device of claim 2 , wherein the expandable member includes a curved portion extending radially inward toward the longitudinal axis, and wherein the curved portion is configured to nest with the opening of the left atrial appendage.

4. The medical device of claim 1 , wherein a portion of each of the spine members is positioned along an outer surface of the expandable member.

5. The medical device of claim 1 , wherein the first end region of the expandable member extends toward a longitudinal axis of the medical device to form an apex.

6. The medical device of claim 1 , wherein the second end region includes a coating, and wherein the coating is designed to promote endothelial cell growth.

7. The medical device of claim 1 , further comprising a fixation member configured to anchor the medical device to a target tissue site of the left atrial appendage.

8. The medical device of claim 7 , wherein the fixation member includes a plurality of bristles projecting away from an outer surface of the expandable member.

9. The medical device of claim 7 , wherein the fixation member includes a barb projecting away from an outer surface of the expandable member.

Assignees

• Boston Scient Scimed Inc

Inventors

• Anderson James M
• Edgell John M
• Meregotte Jose A
• Larsen Steven R
• Raab David
• Hoffman Peter John
• Onushko David John

Classifications

• A61B17/1214 Primary

  Coils or wires · CPC title

• A61B17/0057

  Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect (sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009) · CPC title

• A61B17/12031

  complete occlusion · CPC title

• A61B17/12122 Primary

  within the heart (for closing a cardiac septal defect A61B17/0057) · CPC title

• A61B17/12136

  Balloons · CPC title