Granted Patent B2

US 12,653,537 · App. 17/692,007 · Granted Jun 16, 2026

Inventor: Troy Thornton (San Francisco, CA)

Assignee: Cardio -Renal Solutions, Inc.

A61B17/12036A61B17/12022A61B17/12109A61F2/07A61F2/90A61F2002/068A61F2/2418A61F2220/0016A61F2220/0075A61F2250/001A61F2250/0013A61F2250/0039

Abstract

Claims (21)

1 . A blood flow control device comprising:

a catheter adapted to be advanced into a blood vessel to a blood flow control site within the blood vessel, the catheter including a lumen disposed therein in communication with a port in a sidewall of the catheter;

an expandable anchor supported by the catheter, the expandable anchor being adapted to expand to engage a wall of the blood vessel, the expandable anchor comprising a blood impermeable wall defining an adjustable blood flow path extending through the expandable anchor from a proximal opening to a distal opening, the catheter being entirely disposed outside of the adjustable blood flow path, the expandable anchor further comprising at least one catheter attachment element slidably disposed within the lumen via the port and configured to permit at least one end of the expandable anchor to move longitudinally with respect to the catheter when the expandable anchor expands or collapses; and

a flow control element supported by the catheter, the flow control element being adapted to change a dimension of the adjustable blood flow path to change a rate of blood flow through the adjustable blood flow path.

2 . The blood flow control device of claim 1 , wherein the adjustable blood flow path of the expandable anchor is disposed at the distal opening such that the distal opening has a smaller open area than an open area of the proximal opening.

3 . The blood flow control device of claim 1 , wherein the adjustable blood flow path of the expandable anchor is disposed between the proximal opening and the distal opening.

4 . The blood flow control device of claim 1 , wherein the expandable anchor is disposed on an exterior side of the catheter at a distal section of the catheter such that the catheter is outside of the anchor.

5 . The blood flow control device of claim 1 , wherein the at least one catheter attachment element is disposed at a proximal end of the expandable anchor.

6 . The blood flow control device of claim 1 , wherein the at least one catheter attachment element is disposed at a distal end of the expandable anchor.

7 . The blood flow control device of claim 1 , wherein the expandable anchor comprises a self-expandable scaffold.

8 . The blood flow control device of claim 1 , wherein the blood impermeable wall comprises a blood impermeable covering disposed on at least one of an interior surface and an exterior surface of the expandable anchor and surrounding the adjustable blood flow path.

9 . The blood flow control device of claim 1 , further comprising an anchor collapse control element supported by the catheter and adapted to reduce a dimension of the expandable anchor to facilitate placement of the expandable anchor in a sheath.

10 . The blood flow control device of claim 9 , wherein the anchor collapse control element is supported by the catheter outside of the adjustable blood flow path.

11 . The blood flow control device of claim 9 , further comprising an anchor collapse actuator disposed at a proximal section of the catheter and adapted to actuate the anchor collapse control element.

12 . The blood flow control device of claim 9 , wherein the anchor collapse control element is adapted to reduce a cross-sectional dimension of a proximal end of the expandable anchor.

13 . The blood flow control device of claim 12 , wherein the anchor collapse control element comprises a line slidingly disposed in a plurality of loops on the proximal end of the expandable anchor and extending proximally through a lumen of the catheter.

14 . The blood flow control device of claim 13 , wherein the loops are integral with the expandable anchor.

15 . The blood flow control device of claim 1 , further comprising a blood flow control actuator disposed at a proximal section of the catheter and adapted to actuate the flow control element.

16 . The blood flow control device of claim 1 , wherein the flow control element is supported by the catheter outside of the adjustable blood flow path.

17 . The blood flow control device of claim 1 , wherein the flow control element comprises a cinching line extending proximally from the expandable anchor and adapted to reduce a diameter of at least a portion of the expandable anchor.

18 . The blood flow control device of claim 1 , wherein the expandable anchor is fixedly attached to the catheter.

Assignments (1)

Continuity (2)

References Cited (45)