Adhesive occlusion systems

Patent metadata

Field	Value
Publication number	US-12023035-B2
Application number	US-202117169177-A
Country	US
Kind code	B2
Filing date	Feb 5, 2021
Priority date	May 25, 2017
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

System and methods of delivering adhesive material are described for occluding target locations within a patient. The systems include a catheter configured to deliver adhesive to a target location and one or more of a light source to harden the adhesive, a retention structure to contain the adhesive prior to curing, a balloon to occupy a target location, and an open cell foam plug to occupy a target location.

First claim

What is claimed is:

1. An occlusion device for treatment of a medical condition, comprising:
an elongated conduit having at least one passage between its proximal end and distal end, the elongated conduit conveying an inflation fluid; and
an inflatable balloon detachably connected to a distal portion of the conduit; the balloon being in communication with the at least one passage of the conduit to convey the inflation fluid to inflate the balloon;
wherein a distal region of the inflatable balloon comprises a plurality of pores;
wherein, in a non-inflated configuration, an adhesive is within an interior region of the inflatable balloon; and,
wherein, in an inflated configuration, at least a portion of the adhesive is delivered through at least some of the plurality of pores.

2. The occlusion device of claim 1 , wherein the distal region of the inflatable balloon comprises a porous membrane including the plurality of pores.

3. The occlusion device of claim 1 , further comprising a retention structure positioned proximal of the inflatable balloon.

4. The occlusion device of claim 3 , wherein the retention structure comprises a mesh braided device.

5. The occlusion device of claim 3 , wherein the retention structure comprises a metallic frame.

6. The occlusion device of claim 3 , wherein the retention structure comprises a polymeric structure.

7. The occlusion device of claim 3 , further comprising a light source insertable within the at least one passage so as to react with the adhesive.

8. The occlusion device of claim 3 , wherein the retention structure includes a detachment system for detaching the retention structure from the elongated conduit.

9. The occlusion device of claim 8 , wherein the detachment system is comprised of a thermal detachment system.

10. The occlusion device of claim 8 , wherein the detachment system is comprised of an electrolytic detachment system.

11. The occlusion device of claim 8 , wherein the detachment system is comprised of a mechanical detachment system.

12. The occlusion device of claim 3 , wherein the retention structure is positioned at or near the distal end of the elongated conduit.

13. The occlusion device of claim 1 , further comprising one or more check valves to prevent backflow as the inflatable balloon is inflated.

14. The occlusion device of claim 13 , wherein the one or more check valves are located in the conduit.

15. The occlusion device of claim 1 , further comprising a threaded detachment assembly removably connecting the inflatable balloon to the conduit.

16. The occlusion device of claim 15 , wherein the detachment assembly includes a threaded male portion engaged with a threaded female portion, such that rotation of the conduit detaches the conduit from the inflatable balloon.

17. An occlusion device, comprising:
a delivery means for conveying an inflation fluid, the delivery means having at least one passage between its proximal end and distal end; and
an inflation means in fluid communication with the at least one passage; and,
wherein a distal region of the inflation means comprises a plurality of pores;
wherein, in a non-inflated configuration, an adhesive is within an interior region of the inflation means;
wherein, in an inflated configuration, at least a portion of the adhesive is delivered through at least some of the plurality of pores.

18. The occlusion device of claim 17 , further comprising a retention means positioned proximal of the inflation means.

Assignees

• Terumo Corp

Inventors

• Dasnurkar Anup
• O'Leary Shawn
• Walker Maricela D
• Gray Brian
• Martel Michael

Classifications

• A61B17/12181

  formed by fluidized, gelatinous or cellular remodelable materials, e.g. embolic liquids, foams or extracellular matrices · CPC title

• A61B17/12113

  within an aneurysm · CPC title

• A61B17/12109 Primary

  in a blood vessel · CPC title

• A61B2017/12068

  detachable by heat · CPC title

• A61B2017/12063

  electrolytically detachable · CPC title