Devices for fluid flow through body passages

• US 10,136,987 B2
• Filed: 12/27/2016
• Issued: 11/27/2018
• Est. Priority Date: 04/20/2006
• Status: Active Grant

• Current Assignee: Inari Medical, Inc.
• Original Assignee: LLimflow GmbH
• Inventors: Dickinson, Robert Julian, Pacey, Andrew Robert, Rothman, Martin Terry
• Primary Examiner(s): Stewart, Jason-Dennis
• Application Number:
  US15/390,925
• Publication Number:
  US 20170105834A1
• Time in Patent Office: 700 Days
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/00252 for by-pass connections, i.e. connections from heart chamber to blood vessel or from blood vessel to blood vessel
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/064 with special features to facilitate anastomotic coupling anastomosis of natural blood vessels A61B17/11
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2002/072 Encapsulated stents, e.g. wire or whole stent embedded in lining
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2250/001 for adjusting a diameter
• CPC Class Codes: A61F 2250/0017 differing in yarn density
• CPC Class Codes: A61F 2250/0029 differing in bending or flexure capacity
• CPC Class Codes: A61F 2250/0031 made from both resorbable and non-resorbable prosthetic parts, e.g. adjacent parts
• CPC Class Codes: A61F 2250/0039 differing in diameter
• CPC Class Codes: A61M 1/3613 Reperfusion, e.g. of the coronary vessels, e.g. retroperfusion
• CPC Class Codes: A61M 1/3655 Arterio-venous shunts or fistulae
• CPC Class Codes: A61M 27/002 Implant devices for drainage of body fluids from one part of the body to another intraocular A61F9/00781; middle ear A61F11/202

Abstract

A device includes a first end portion, a second end portion, an intermediate portion between the first end portion and the second end portion, and a graft material coupled to at least the intermediate portion. The first end portion has a first end diameter. The second end portion has a second end diameter larger than the first end diameter. The intermediate portion tapers between the first end portion and the second end portion. A method of diverting fluid flow from a first passage to a second passage comprising deploying the device in a third passage between the first passage and the second passage, expanding the first end portion against sidewalls of the first passage, and expanding the second end portion against sidewalls of the second passage.

Claims

1. A device comprising:

a longitudinal axis;

a first end portion having a terminal first end diameter, the first end portion having a first length along the longitudinal axis, the first end portion being self-expanding;

a second end portion having a second end diameter smaller than the terminal first end diameter, the second end portion being substantially cylindrical, the second end portion having a second length along the longitudinal axis, the second end portion being self-expanding;

an intermediate portion between the first end portion and the second end portion, the intermediate portion tapering between the first end portion and the second end portion, the intermediate portion having a third length along the longitudinal axis, the first end portion being frustoconical, the first end portion tapering between the terminal first end diameter and the intermediate portion; and

a graft material coupled to at least the intermediate portion, the device configured to provide fluid flow between a first passage in which the first end portion is anchored and a second passage in which the second end portion is anchored.

2. The device of claim 1, wherein each of the first end portion, the second end portion, and the intermediate portion comprises cut struts.

3. The device of claim 1, wherein the first length is between 5 mm and 70 mm.

4. The device of claim 1, wherein the device has a fourth length including the first length, the second length, and the third length, and wherein the first length is 3% to 47% of the fourth length.

5. The device of claim 1, wherein the first end portion comprises a first density, the second end portion comprises a second density, and the intermediate portion comprises a third density less than the second density, wherein each of the first end portion, the second end portion, and the intermediate portion are self-expanding, wherein each of the first end portion, the second end portion, and the intermediate portion comprises cut struts, wherein the first length is between 5 mm and 70 mm, wherein the device has a fourth length including the first length, the second length, and the third length, and wherein the first length is 3% to 47% of the fourth length.

6. The device of claim 1, wherein the terminal first end diameter is between 4 mm and 10 mm.

7. The device of claim 1, wherein the second end diameter is between 2 mm and 8 mm.

8. The device of claim 1, wherein the intermediate portion is deformably expandable.

9. The device of claim 1, wherein each of the first end portion, the second end portion, and the intermediate portion is self-expanding, wherein each of the first end portion, the second end portion, and the intermediate portion comprises cut struts, wherein the first length is between 5 mm and 70 mm, wherein the device has a fourth length including the first length, the second length, and the third length, and wherein the first length is 3% to 47% of the fourth length.

10. A device comprising:

a longitudinal axis;

a first end portion having a terminal first end diameter, the first end portion having a first length along the longitudinal axis;

a second end portion having a second end diameter smaller than the terminal first end diameter, the second end portion being substantially cylindrical, the second end portion having a second length along the longitudinal axis;

an intermediate portion between the first end portion and the second end portion, the intermediate portion tapering between the first end portion and the second end portion, the intermediate portion having a third length along the longitudinal axis, the first end portion being frustoconical, the first end portion tapering between the terminal first end diameter and the intermediate portion,

the device configured to provide fluid flow between a first passage in which the first end portion is anchored and a second passage in which the second end portion is anchored.

11. The device of claim 10, further comprising a graft material coupled to at least the intermediate portion.

12. The device of claim 10, wherein each of the first end portion, the second end portion, and the intermediate portion are self-expanding.

13. The device of claim 10, wherein each of the first end portion, the second end portion, and the intermediate portion comprises cut struts.

14. The device of claim 10, wherein the first length is between 5 mm and 70 mm.

15. The device of claim 10, wherein the device has a fourth length including the first length, the second length, and the third length, and wherein the first length is 3% to 47% of the fourth length.

16. The device of claim 10, wherein the first end portion comprises a first density, the second end portion comprises a second density, and the intermediate portion comprises a third density less than the second density, wherein each of the first end portion, the second end portion, and the intermediate portion are self-expanding, wherein each of the first end portion, the second end portion, and the intermediate portion comprises cut struts, wherein the first length is between 5 mm and 70 mm, wherein the device has a fourth length including the first length, the second length, and the third length, and wherein the first length is 3% to 47% of the fourth length.

17. The device of claim 10, wherein the terminal first end diameter is between 4 mm and 10 mm.

18. The device of claim 10, wherein the second end diameter is between 2 mm and 8 mm.

19. The device of claim 10, wherein the intermediate portion is deformably expandable.

20. The device of claim 10, wherein each of the first end portion, the second end portion, and the intermediate portion is self-expanding, wherein each of the first end portion, the second end portion, and the intermediate portion comprises cut struts, wherein the first length is between 5 mm and 70 mm, wherein the device has a fourth length including the first length, the second length, and the third length, and wherein the first length is 3% to 47% of the fourth length.