Pressure actuated valve with improved biasing member

Patent metadata

Field	Value
Publication number	US-10500329-B2
Application number	US-201514857962-A
Country	US
Kind code	B2
Filing date	Sep 18, 2015
Priority date	Jun 27, 2003
Publication date	Dec 10, 2019
Grant date	Dec 10, 2019

Abstract

A valve for controlling material flow through a catheter, comprises a first flexible member including a first moveable element, wherein, when the first moveable element is in the open position, material may flow past the first flexible member through a first lumen of the catheter and, when the first moveable element is in the closed position, flow through the first lumen is prevented and a first biasing member coupled to the first flexible member for biasing the first moveable member toward the closed position.

First claim

What is claimed:

1. A valve comprising:
a flexible member comprising a first moveable element, a second movable element, and at least one biasing member;
wherein the first moveable element and the second moveable element are configured to move from a closed position to an open position when subjected to a fluid pressure greater than a predetermined threshold level;
wherein the first moveable element and the second moveable element are configured to remain in the closed position when the fluid pressure is less than the predetermined threshold level; and
wherein the at least one biasing member is configured to bias the first moveable element and the second moveable element towards the closed position.

2. The valve of claim 1 , wherein the predetermined threshold level of fluid pressure is 44 mmHG.

3. The valve of claim 2 , wherein the first moveable element comprises a first edge and the second moveable element comprises a second edge.

4. The valve of claim 1 , wherein the valve is configured to be sized to fit within a flow passage of a catheter hub.

5. The valve of claim 4 , wherein the flexible member is substantially an elliptical shape.

6. The valve of claim 5 , wherein the flexible member comprises a major axis.

7. The valve of claim 6 , wherein the first movable element and the second movable element are configured to be substantially parallel to the major axis.

8. The valve of claim 1 , wherein the valve is configured to allow a flow rate of up to 350 ml/min.

9. The valve of claim 8 , wherein the at least one biasing member is integrally formed within the flexible member.

10. The valve of claim 9 , wherein the at least one biasing member comprises two biasing members both comprised of a plastic material.

11. The valve of claim 9 , wherein the at least one biasing member comprises two biasing members both comprised of a metal material.

12. The valve of claim 9 , wherein the at least one biasing member is configured to control the amount of force biasing the first moveable element and the second moveable element towards the closed position.

13. A valve comprising:
a flexible member comprising a first moveable element, a second movable element, and a biasing member;
wherein the first moveable element and the second moveable element are configured to move from a closed position to an open position when subjected to a fluid pressure greater than a predetermined threshold level;
wherein the first moveable element and the second moveable element are configured to remain in the closed position when the fluid pressure is less than the predetermined threshold level; and
wherein the biasing member is configured to control the amount of force biasing the first moveable element and the second moveable element towards the closed position.

14. The valve of claim 13 , wherein the predetermined threshold level of fluid pressure is 44 mmHG.

15. The valve of claim 14 , wherein the flexible member is substantially an elliptical shape.

16. The valve of claim 15 , wherein the flexible member comprises a major axis.

17. The valve of claim 16 , wherein the first movable element, the second movable element, and the biasing member are configured to be substantially parallel to the major axis.

18. A valve comprising:
a flexible member comprising a first moveable element, a second movable element, and a biasing member;
wherein the first moveable element and the second moveable element are configured to move from a closed position to an open position when subjected to a fluid pressure greater than a 44 mmHG;
wherein the first moveable element and the second moveable element are configured to remain in the closed position when the fluid pressure is less than 44 mmHG;
wherein the biasing member is configured to bias the first moveable element and the second moveable element towards the closed position; and
wherein the flexible member is substantially elliptically shaped comprising a major axis.

19. The valve of claim 18 , wherein the first movable element, the second movable element, and the biasing member are configured to be substantially parallel to the major axis.

20. The valve of claim 19 , wherein the flexible member further comprises a slit.

Assignees

• Angiodynamics Inc

Inventors

• Weaver Karla
• Cuthane Jim

Classifications

• A61M2039/2433

  Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc · CPC title

• A61M2025/0031

  characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment · CPC title

• F16K15/147

  the closure elements having specially formed slits or being of an elongated easily collapsible form · CPC title

• Y10T137/7882

  Having exit lip · CPC title

• A61M25/0028

  characterized by features relating to at least one lumen located at the proximal part of the catheter, e.g. alterations in lumen shape or valves (catheter hubs A61M25/0097) · CPC title