Surgical fluid transfer apparatus

• US 20080082082A1
• Filed: 09/28/2007
• Published: 04/03/2008
• Est. Priority Date: 09/29/2006
• Status: Active Grant

• Current Assignee: Kpr U.S., LLC (Cardinal Health, Inc.)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Carlyon, James L., Schrader, Eugene, Salto, David J.
• Granted Patent: US 8,048,039 B2
• Time in Patent Office: Days
• US Class Current: 604/523
• CPC Class Codes: A61M 2039/261 where the fluid space within the valve is increasing upon disconnection
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 39/06 Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
• CPC Class Codes: A61M 39/22 Valves or arrangement of valves A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24
• CPC Class Codes: Y10S 604/905 Aseptic connectors or couplings, e.g. frangible, piercable

Abstract

A surgical fluid transfer apparatus for passage of fluids includes a hub defining a longitudinal axis and having an internal chamber, an elongated member extending from the hub and defining a longitudinal conduit and a closure valve disposed within the internal chamber of the hub. The closure valve is adapted for movement between a first position substantially sealing the internal chamber to prevent passage of fluids and a second position establishing a fluid passage within the hub to permit passage of fluids therethrough. The closure valve includes a valve housing having inner wall portions defining a general tapered internal bore and a seal member at least partially disposed within the tapered internal bore of the valve housing. The seal member defines a general tapered configuration and has an open condition permitting passage of an access instrument through the closure valve and into the longitudinal conduit of the elongated member and a closed condition in the absence of the access instrument. The inner wall portions of the valve housing cooperate with the seal member to permit the seal member to assume the closed condition thereof.

Claims

1. A surgical fluid transfer apparatus for passage of fluids, which comprises:

a hub defining a longitudinal axis and having an internal chamber;

an elongated member extending from the hub and defining a longitudinal conduit; and

a closure valve disposed within the internal chamber of the hub, the closure valve adapted for movement between a first position substantially sealing the internal chamber to prevent passage of fluids and a second position establishing a fluid passage within the hub to permit passage of fluids therethrough, the closure valve including a valve housing having inner wall portions defining a general tapered internal bore and a seal member at least partially disposed within the tapered internal bore of the valve housing, the seal member defining a general tapered configuration and having an open condition permitting passage of an access instrument through the closure valve and into the longitudinal conduit of the elongated member and a closed condition in the absence of the access instrument, the inner wall portions of the valve housing cooperating with the seal member to permit the seal member to assume the closed condition thereof.

2. The surgical apparatus according to claim 1 wherein the closure valve is adapted for longitudinal movement along the longitudinal axis between the first and second positions thereof.

3. The surgical apparatus according to claim 2 wherein the closure valve is normally biased toward the first position thereof.

4. The surgical apparatus according to claim 2 wherein the first position of the closure valve is a proximal position thereof and the second position of the closure valve is a distal position thereof.

5. The surgical apparatus according to claim 2 wherein the seal member defines inner seal portions adapted for displacement to permit passage of the access instrument when in the open condition of the seal member and to establish a substantial sealing relation with the access instrument introduced therethrough.

6. The surgical apparatus according to claim 5 wherein the seal member is adapted for longitudinal movement relative to the valve housing between an actuated position and an initial position corresponding to the open and closed conditions of the closure valve.

7. The surgical apparatus according to claim 6 wherein the inner wall portions of the valve housing defining the tapered internal bore are adapted cooperate with the seal member upon movement of the seal member to the initial position to substantially close the inner seal portions thereof.

8. The surgical apparatus according to claim 7 wherein the actuated position of the seal member is a distal longitudinal position and the initial position is a proximal longitudinal position.

9. The surgical apparatus according to claim 8 wherein the seal member is normally biased toward the proximal longitudinal position.

10. The surgical apparatus according to claim 1 wherein the valve housing is adapted to operatively engage an internal sealing wall of the hub when in the first position of the closure valve to substantially seal the internal chamber of the hub, and is adapted to operatively disengage the internal sealing wall when in the second position of the closure valve to establish the fluid passage.

11. The surgical apparatus according to claim 10 wherein the closure valve includes a valve gasket mounted to the valve housing, the valve gasket engaging the internal sealing wall of the hub to substantially seal the internal chamber of the hub.

12. The surgical apparatus according to claim 11 including a valve plunger proximal of the valve gasket and engageable with a connector positioned within the hub whereby advancement of the connector advances the valve plunger and the closure valve from the first position to the second position.

13. The surgical apparatus according to claim 12 valve plunger defines a slot, the slot being part of the fluid passage.

14. The surgical apparatus according to claim 11 wherein the valve housing is mounted within the internal chamber of the hub to define a fluid space between the valve housing and an inner wall defining the internal chamber, the fluid passage incorporating the fluid space.

15. A surgical apparatus for passage of fluids, which comprises:

a hub defining a longitudinal axis;

an elongated member extending distally from the hub and defining a longitudinal conduit; and

a closure valve mounted within the hub to define a fluid passage between the closure valve and the hub, the closure valve adapted for longitudinal movement from a proximal position substantially closing the fluid passage to prevent passage of fluids to a distal position opening the fluid passage to permit passage of fluids through the hub, the closure valve including a valve housing and an internal seal member mounted to the valve housing, the internal seal member defining an internal passage, the internal seal member being adapted for longitudinal movement relative to the valve housing between a first position whereby the internal passage of the seal member is in a substantially closed condition and a second position whereby the internal passage of the internal seal member receives an access instrument.

16. The surgical apparatus according to claim 15 wherein the seal member is normally biased toward the first position thereof.

17. The surgical apparatus according to claim 16 wherein the seal member defines a general tapered configuration and is received within a corresponding tapered internal bore of the valve housing, the seal member cooperating with wall portions of the valve housing defining the tapered internal bore upon movement of the seal member to the first position to substantially close the internal passage of the seal member.

18. The surgical apparatus according to claim 17 wherein the valve housing is adapted to engage an internal sealing wall within the hub when in the proximal position of the closure valve to close the fluid passage.

19. The surgical apparatus according to claim 18 wherein the closure valve is normally biased toward the proximal position.

20. The surgical apparatus according to claim 19 including a spring engageable with the internal seal member to normally bias the internal seal member to the first position corresponding to a proximal position of the internal seal member relative to the valve housing, to thereby normally bias the control valve to the proximal position thereof.

21. The surgical apparatus according to claim 20 wherein the spring is at least partially positioned about the seal member to normally bias the seal member in a radial inward direction to facilitate formation of the substantially closed position of the internal seal member.

22. The surgical apparatus according to claim 20 wherein the spring is integrally formed with the actual seal member.

23. The surgical apparatus according to claim 22 wherein the spring is generally C-shaped.

24. The surgical apparatus according to claim 19 wherein the valve housing includes a valve gasket, the valve gasket engaging the internal sealing wall when in the proximal position of the closure valve to close the fluid passage.