Devices, methods and systems for counterpulsation and blood flow conduit connection

Patent metadata

Field	Value
Publication number	US-9919086-B2
Application number	US-201615241590-A
Country	US
Kind code	B2
Filing date	Aug 19, 2016
Priority date	Aug 11, 2011
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A blood flow conduit includes a first conduit portion defining a first portion of a lumen; and a second conduit portion defining a second portion of a lumen. At least one of the first or second conduit portions may include a tip portion and the other of the first or second conduit portions may include an enlarged area.

First claim

What is claimed is:

1. A blood flow conduit, comprising:
a first conduit portion defining a first portion of a lumen; and
a second conduit portion defining a second portion of the lumen;
wherein:
at least one of the first or second conduit portions includes a tip portion and the other of the first or second conduit portions includes an enlarged area, the tip portion extending at least partially into the enlarged area in a manner designed to prevent contact between the tip portion and an inner wall of the enlarged area as blood flows through the lumen; and
the tip portion includes an inner wall with a surface roughness less than a surface roughness of the inner wall of the enlarged area.

2. The blood flow conduit of claim 1 , wherein the tip portion is formed from at least one material selected from the group consisting of metals or polymers, and the enlarged area is formed from a material that promotes tissue or cell ingrowth.

3. The blood flow conduit of claim 1 , wherein the tip portion is formed from at least partially from silicone, and the enlarged area is formed from a fabric or textile.

4. The blood flow conduit of claim 1 , wherein the enlarged area is formed in at least two pieces adapted to be affixed together during a surgical procedure.

5. The blood flow conduit of claim 1 , wherein the tip portion is part of a blood pump.

6. The blood flow conduit of claim 1 , wherein the first and second conduit portions are configured to be affixed together during a surgical procedure.

7. The blood flow conduit of claim 1 , wherein the first and second conduit portions are configured to be affixed together and to a pump during a surgical procedure.

8. The blood flow conduit of claim 1 , further comprising a washer affixed around the tip portion.

9. A blood flow assist system, comprising:
a blood pump: and
a blood flow conduit as set forth in claim 1 .

Assignees

• Abiomed Inc

Inventors

• Dowling Robert
• Kung Robert T V
• Spence Paul
• Siess Thorsten
• Spanier Gerd
• Gratz Eric
• Hastie Caitlyn

Classifications

• A61B17/11

  for performing anastomosis; Buttons for anastomosis · CPC title

• A61M25/0074

  Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable · CPC title

• A61F2250/0026

  differing in surface structures · CPC title

• A61B2017/1135

  End-to-side connections, e.g. T- or Y-connections · CPC title

• A61M2206/10

  Flow characteristics · CPC title