COMPRESSIBLE CANNULA VALVE

• US 20190314624A1
• Filed: 05/30/2019
• Published: 10/17/2019
• Est. Priority Date: 01/27/2012
• Status: Active Grant

• Current Assignee: Carefusion 303 Incorporated (Becton, Dickinson & Co)
• Original Assignee: Carefusion 303 Incorporated (Becton, Dickinson & Co)
• Inventors: YEH, Jonathan
• Granted Patent: US 11,701,509 B2
• Time in Patent Office: Days
• CPC Class Codes: A61M 2039/2433 Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc
• CPC Class Codes: A61M 2039/263 where the fluid space within the valve is decreasing upon disconnection
• CPC Class Codes: A61M 2039/267 having a sealing sleeve around a tubular or solid stem portion of the connector
• CPC Class Codes: A61M 39/24 Check- or non-return valves
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24

Abstract

A needleless valve system includes a cannula comprising a cannula tip; a valve comprising a valve tip, wherein the valve is disposed around the cannula; and a housing comprising a housing tip, wherein the cannula tip, the valve tip, and the housing tip comprise a flat surface when the needleless valve system is in a sealed position.

Claims

1. A compressible cannula valve comprising:

a cannula comprising a cannula tip, a central lumen, and a radially extending opening in fluid communication with the central lumen;

a resiliently compressible valve comprising a valve tip, wherein the valve is disposed around the cannula and a protrusion of the valve is received radially within the radially oriented opening; and

a housing comprising an inner cavity, wherein cannula and valve are positioned in the inner cavity;

wherein when the valve changes from a sealed position to an open position, the valve deforms and withdraws the protrusion of the valve out of the opening.

2. The compressible cannula valve of claim 1, wherein the cannula and the valve are co-axially disposed in the housing.

3. The compressible cannula valve of claim 1, wherein the valve is configured to be compressed coaxially within the housing by a male luer.

4. The compressible cannula valve of claim 1, wherein the cannula comprises a radially oriented second opening.

5. The compressible cannula valve of claim 1, wherein the protrusion is radially extending.

6. The compressible cannula valve of claim 1, wherein the valve further comprises a shoulder disposed opposite the protrusion, wherein the shoulder is configured to resist withdrawal of the protrusion out of the opening by engaging an inner wall of the housing.

7. The compressible cannula valve of claim 6, wherein, in the sealed position, the shoulder and the protrusion are axially aligned with the radially oriented opening.

8. The compressible cannula valve of claim 1, wherein in the open position, the cannula tip extends through the valve tip.

9. The compressible cannula valve of claim 1, wherein an inner surface of the valve further comprises a circumferential configured for wiping a fluid off of an outer surface of the cannula.

10. The compressible cannula valve of claim 1, further comprising a base joined with the housing, wherein the cannula is formed in the base.

11. The compressible cannula valve of claim 1, wherein the cannula tip extends toward an opening of the housing.

12. A compressible cannula valve comprising:

a housing having a housing wall around a cavity and a housing opening;

a cannula having a base, a cannula tip extending within the cavity from the base toward the housing opening, and a lumen extending from the base to a radially oriented opening on a side of the cannula below the cannula tip; and

a resiliently compressible valve surrounding the cannula and having a valve tip, a shoulder, and a protrusion, the shoulder extending radially toward the housing wall and, when in a sealed position, the protrusion extending radially into the radially oriented opening;

wherein, in the sealed position, the valve tip is proximal to the cannula tip and the shoulder and the protrusion are axially aligned with the radially oriented opening.

13. The compressible cannula valve of claim 12, wherein in the sealed position, the cannula tip is surrounded by the valve such that the radially oriented opening is obstructed by the protrusion.

14. The compressible cannula valve of claim 12, wherein in the sealed position, the shoulder engages an inner surface of the housing wall to direct the protrusion into the radially oriented opening.

15. The compressible cannula valve of claim 12, wherein in an open position, the valve is compressed toward the base such that a fluid flow through the radially oriented opening is permitted.

16. The compressible cannula valve of claim 12, wherein in an open position, the cannula tip extends through the valve tip.

17. The compressible cannula valve of claim 12, wherein the cannula comprises a radially oriented second opening.

18. The compressible cannula valve of claim 12, wherein the valve is configured to be compressed within the housing by a male luer.

19. The compressible cannula valve of claim 12, wherein an inner surface of the valve further comprises a circumferential groove configured for wiping a fluid off of an outer surface of the cannula.

20. The compressible cannula valve of claim 12, wherein an outer surface of the valve further comprises a circumferential groove configured for wiping a fluid off of an inner surface of the housing wall.