IP Library › Granted Patent US 12,290,266
Granted Patent B2
US 12,290,266 · App. 18/066,989 · Granted May 6, 2025

Occlusion systems

Inventors: Anup Dasnurkar (Tokyo, JP); Brian Gray (Tokyo, JP); Maricela Walker (Tokyo, JP); Frida San (Tokyo, JP); Michael Martel (Tokyo, JP)
Assignee: Terumo Corporation
A61B17/12136A61B17/12109A61B2017/0065
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Quick Facts
Patent No.
US 12,290,266
App. No.
18/066,989
Granted
May 6, 2025
Kind
B2
Abstract

An occlusion device with particular utility in occlusion of left atrial appendages is described. The occlusion device embodiments utilize an inflatable balloon or expandable element used to occlude the treatment site.

Claims (31)

1. An occlusion device to occlude a treatment site comprising:

an elongated member comprising an inner passage;

a balloon detachable from the elongated member; and,

a porous membrane fixed to only a distal portion of the balloon, wherein the porous membrane is permeable or semi-permeable to an adhesive delivered through the inner passage of the elongated member.

2. The occlusion device of claim 1 , wherein the porous membrane defines a volume located only at the distal portion of the balloon.

3. The occlusion device of claim 2 , further comprising an inner tubular member having a distal end in communication with the volume defined by the porous membrane.

4. The occlusion device of claim 3 , wherein the distal end of the inner tubular member opens into the volume defined by the porous membrane.

5. The occlusion device of claim 3 , wherein the inner tubular member is removable from the balloon.

6. The occlusion device of claim 3 , further comprising a valve within the elongated member and through which the inner tubular member may be positioned through and removed from.

7. The occlusion device of claim 2 , wherein the porous membrane is bonded to the balloon to form a gap that creates the volume located only at the distal portion of the balloon.

8. The occlusion device of claim 7 , wherein the porous membrane comprises a plurality of pores sized and positioned to allow adhesive passage to primarily bond only the porous membrane with surrounding tissue.

9. The occlusion device of claim 8 , wherein the plurality of pores are sized between 10-180 microns.

10. The occlusion device of claim 1 , wherein the porous membrane is a PET spun microfiber.

11. The occlusion device of claim 1 , further comprising a detachment junction connected to the elongated member and detaching the balloon from the elongated member.

12. The occlusion device of claim 1 , wherein the balloon has a teardrop or conical shape when inflated.

13. An occlusion device to occlude a treatment site comprising:

an outer tubular member;

a balloon detachable from the outer tubular member;

a porous membrane fixedly connected to the balloon and defining an interior volume only at a distal portion of the balloon, wherein the porous membrane is permeable or semi-permeable to an adhesive; and,

an inner tubular member in communication with the interior volume to supply the adhesive within the interior volume.

14. The occlusion device of claim 13 , wherein the inner tubular member is removable from the balloon.

15. The occlusion device of claim 13 , further comprising a valve within the outer tubular member and through which the inner tubular member is positioned through and removed from.

16. The occlusion device of claim 13 , wherein the porous membrane is fixed to the balloon to form a gap with the balloon that creates the interior volume.

17. The occlusion device of claim 13 , wherein the porous membrane comprises a plurality of pores sized and positioned to allow adhesive movement to primarily bond only the porous membrane with surrounding tissue.

18. The occlusion device of claim 17 , wherein the plurality of pores are sized between 10-180 microns.

19. The occlusion device of claim 13 , wherein the balloon has a teardrop or conical shape when inflated.

20. An occlusion device to occlude a treatment site comprising:

an elongated member comprising an inner passage;

a balloon detachable from the elongated member; and,

a porous attachment means for adhesive delivery,

wherein the porous attachment means is fixed to only a distal portion of the balloon and wherein the porous attachment means is permeable or semi-permeable to an adhesive delivered through the inner passage of the elongated member.

Continuity (3)
Continuation 16672273 · Nov 1, 2019
Provisional Application 62754493 · Nov 1, 2018
Related Publication 20230190294A1 · Jun 22, 2023
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