Linear slide valve for CVC access

• US 5,454,792 A
• Filed: 04/18/1994
• Issued: 10/03/1995
• Est. Priority Date: 04/19/1993
• Status: Expired due to Term

• Current Assignee: Hyprotek, Inc.
• Original Assignee: Hyprotek, Inc.
• Inventors: Tennican, Patrick O., Phipps, L. Myles, Michaelsen, Russell A.
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): VANOVER, PERRY
• Application Number:
  US08/229,004
• Time in Patent Office: 533 Days
• Field of Search: 604/83, 604/87, 604/88, 604/183, 604/185, 604/191, 604/30, 604/36, 604/38, 604/62, 604/64, 604/89, 604/91, 604/173, 604/187, 604/188, 604/218, 604/232, 604/240, 604/258, 604/249, 137/605, 137/625.11, 137/625.4, 251/326
• US Class Current: 604/191
• CPC Class Codes: A61M 2005/1403 Flushing or purging
• CPC Class Codes: A61M 39/02 Access sites
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/1408 in parallel, e.g. manifolds, sequencing valves access sites A61M39/02; tube connectors A61M39/10
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: A61M 5/19 having more than one chamber , e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly surgical glue applicators A61B17/00491
• CPC Class Codes: F16K 11/0655 with flat slides
• CPC Class Codes: Y10T 137/86501 Sequential distributor or collector type

Abstract

A catheter access system comprises and integrally molded base sheet which forms first and second opposed slide valve walls. The slide valve walls form an upwardly-open longitudinal valley therebetween. An elongated sliding member is received for slidable movement within the longitudinal valley. A plurality of slide valve inlet ports extend through the first slide valve wall. A slide valve outlet port extends through the second slide valve wall. A plurality of syringes are mounted on the integrally-molded base sheet for fluid communication with the slide valve inlet ports. The elongated sliding member is movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port. The sliding member has a plurality of sliding member passageways corresponding to the slide valve inlet ports. The passageways are positioned so that they each connect between their corresponding slide valve inlet ports and the slide valve outlet port at the different discrete longitudinal positions of the elongated sliding member.

Claims

1. A catheter access system comprising:

a slide valve, the slide valve having elongated slide valve walls, the slide valve walls having a plurality of slide valve inlet ports extending therethrough and having a slide valve outlet port extending therethrough;

a plurality of syringes having syringe outlet apertures in fluid communication with the slide valve inlet ports;

the slide valve including an elongated sliding member which is received for linear sliding movement along a longitudinal axis within the slide valve walls between the slide valve inlet ports and the slide valve outlet port, the elongated sliding member being movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port;

the elongated sliding member having a plurality of sliding member passageways corresponding to the slide valve inlet ports, each of the sliding member passageways connecting between its corresponding slide valve inlet port and the slide valve outlet port at a corresponding different discrete longitudinal position of the elongated sliding member; and

the collective sliding member passageways defining a series of mutually exclusive courses through the sliding member from the inlet ports to the outlet port to restrict mixing of fluids from different syringes, the inlet ports forming inlet orifices which are in sliding engagement with the elongated sliding member, the inlet orifices being longitudinally spaced from each other at a first regular pitch, the sliding member passageways being longitudinally spaced from each other at a second regular pitch that is different from the first regular pitch.

2. A catheter access system comprising:

a slide valve, the slide valve having elongated slide valve walls, the slide valve walls having a plurality of slide valve inlet ports extending therethrough and having a slide valve outlet port extending therethrough;

a plurality of syringes having syringe outlet apertures in fluid communication with the slide valve inlet ports;

the slide valve including an elongated sliding member which is received for linear sliding movement along a longitudinal axis within the slide valve walls between the slide valve inlet ports and the slide valve outlet port, the elongated sliding member being movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port;

the elongated sliding member having a plurality of sliding member passageways corresponding to the slide valve inlet ports, each of the sliding member passageways connecting between its corresponding slide valve inlet port and the slide valve outlet port at a corresponding different discrete longitudinal position of the elongated sliding member;

the collective sliding member passageways defining a series of mutually exclusive courses through the sliding member from the inlet ports to the outlet port to restrict mixing of fluids from different syringes;

the slide valve outlet port forms a corresponding outlet port orifice;

the elongated sliding member has a sliding surface which is in sliding abutment with the outlet port orifice;

the sliding member passageways have open terminations along the sliding member sliding surface, each such open termination being positioned to align with the outlet port orifice at at least one of the discrete longitudinal positions of the elongated sliding member;

wherein the open terminations comprise elongated channels formed in the sliding member along the sliding member sliding surface and in sliding abutment with the outlet port orifice.

3. A catheter access system comprising:

a slide valve, the slide valve having elongated slide valve walls, the slide valve walls having a plurality of slide valve inlet ports extending therethrough and having a slide valve outlet port extending therethrough;

a plurality of syringes having syringe outlet apertures in fluid communication with the slide valve inlet ports;

the slide valve including an elongated sliding member which is received for linear sliding movement along a longitudinal axis within the slide valve walls between the slide valve inlet ports and the slide valve outlet port, the elongated sliding member being movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port;

the elongated sliding member having a plurality of sliding member passageways corresponding to the slide valve inlet ports, each of the sliding member passageways connecting between its corresponding slide valve inlet port and the slide valve outlet port at a corresponding different discrete longitudinal position of the elongated sliding member;

the collective sliding member passageways defining a series of mutually exclusive courses through the sliding member from the inlet ports to the outlet port to restrict mixing of fluids from different syringes;

the slide valve outlet port forms a corresponding outlet port orifice;

the elongated sliding member has a sliding surface which is in sliding abutment with the outlet port orifice;

the sliding member passageways have open terminations along the sliding member sliding surface, each such open termination being positioned to align with the outlet port orifice at at least one of the discrete longitudinal positions of the elongated sliding member;

the slide valve inlet ports form corresponding inlet port orifices, the slide valve outlet port forming a corresponding outlet port orifice;

the elongated sliding member has first and second sliding surfaces, the first sliding surface being in sliding abutment with the inlet port orifices, the second sliding surface being in sliding abutment with the outlet port orifice;

the sliding member passageways extend through the elongated sliding member from the first sliding surface to the second sliding surface, the passageways having first and second open terminations along the first and second sliding surfaces, respectively;

each of the first open terminations being positioned to align with a corresponding one of the inlet port orifices at a corresponding one of the discrete longitudinal positions of the elongated sliding member;

each of the second open terminations being positioned to align with the outlet port orifice at at least one of the discrete longitudinal positions of the elongated sliding member;

wherein the second terminations comprise elongated channels formed along the second sliding surface.

4. A catheter access system comprising:

a slide valve, the slide valve having elongated slide valve walls, the slide valve walls having a plurality of slide valve inlet ports extending therethrough and having a slide valve outlet port extending therethrough;

a plurality of syringes having syringe outlet apertures in fluid communication with the slide valve inlet ports;

the slide valve including an elongated sliding member which is received for linear sliding movement along a longitudinal axis within the slide valve walls between the slide valve inlet ports and the slide valve outlet port, the elongated sliding member being movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port;

the elongated sliding member having a plurality of sliding member passageways corresponding to the slide valve inlet ports, each of the sliding member passageways connecting between its corresponding slide valve inlet port and the slide valve outlet port at a corresponding different discrete longitudinal position of the elongated sliding member; and

the collective sliding member passageways defining a series of mutually exclusive courses through the sliding member from the inlet ports to the outlet port to restrict mixing of fluids from different syringes,

a wall surface formed by at least one of the elongated slide valve walls, the slide valve outlet port forming a corresponding outlet port orifice in the wall surface;

the elongated sliding member having a sliding surface which is in sliding abutment with the wall surface and the outlet port orifice;

the sliding member passageways having open terminations along the sliding member sliding surface, each such open termination being positioned to align with the outlet port orifice at at least one of the discrete longitudinal positions of the elongated sliding member;

wherein the open terminations comprise elongated channels formed along the sliding member sliding surface.

5. A catheter access system comprising:

a slide valve, the slide valve having elongated slide valve walls, the slide valve walls having a plurality of slide valve inlet ports extending therethrough and having a slide valve outlet port extending therethrough;

a plurality of syringes having syringe outlet apertures in fluid communication with the slide valve inlet ports;

the slide valve including an elongated sliding member which is received for linear sliding movement along a longitudinal axis within the slide valve walls between the slide valve inlet ports and the slide valve outlet port, the elongated sliding member being movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port;

the elongated sliding member having a plurality of sliding member passageways corresponding to the slide valve inlet ports, each of the sliding member passageways connecting between its corresponding slide valve inlet port and the slide valve outlet port at a corresponding different discrete longitudinal position of the elongated sliding member; and

the collective sliding member passageways defining a series of mutually exclusive courses through the sliding member from the inlet ports to the outlet port to restrict mixing of fluids from different syringes;

first and second wall surfaces formed by the elongated slide valve walls, the slide valve inlet ports forming corresponding inlet port orifices in the first wall surface, the slide valve outlet port forming a corresponding outlet port orifice in the second wall surface;

the elongated sliding member having first and second sliding surfaces, the first sliding surface being in sliding abutment with the first wall surface and the inlet port orifices, the second sliding surface being in sliding abutment with the second wall surface and the outlet port orifice;

the sliding member passageways extending through the elongated sliding member from the first sliding surface to the second sliding surface, the passageways having first and second open terminations along the first and second sliding surfaces, respectively;

each of the first open terminations being positioned to align with a corresponding one of the inlet port orifices at a corresponding one of the discrete longitudinal positions of the elongated sliding member and being positioned to be sealed by the first wall surface at other discrete longitudinal positions of the elongated sliding member;

each of the second open terminations being positioned to align with the outlet port orifice at at least one of the discrete longitudinal positions of the elongated sliding member;

wherein the second terminations comprise elongated channels formed along the second sliding surface.

6. A catheter access system comprising:

a slide valve, the slide valve having elongated slide valve walls, the slide valve walls having a plurality of slide valve inlet ports extending therethrough and having a slide valve outlet port extending therethrough;

a plurality of syringes having syringe outlet apertures in fluid communication with the slide valve inlet ports;

the slide valve including an elongated sliding member which is received for linear sliding movement along a longitudinal axis within the slide valve walls between the slide valve inlet ports and the slide valve outlet port, the elongated sliding member being movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port;

the elongated sliding member having a plurality of sliding member passageways corresponding to the slide valve inlet ports, each of the sliding member passageways connecting between its corresponding slide valve inlet port and the slide valve outlet port at a corresponding different discrete longitudinal position of the elongated sliding member; and

the collective sliding member passageways defining a series of mutually exclusive courses through the sliding member from the inlet ports to the outlet port to restrict mixing of fluids from different syringes;

wherein one of the discrete longitudinal positions of the elongated sliding member is a syringe vent position, the elongated sliding member having vent passageways which are positioned to connect from the slide valve inlet ports to ambient atmosphere when the elongated sliding member is in its syringe vent position.

7. A catheter access system comprising:

a slide valve, the slide valve having elongated slide valve walls, the slide valve walls having a plurality of slide valve inlet ports extending therethrough and having a slide valve outlet port extending therethrough;

a plurality of syringes having syringe outlet apertures in fluid communication with the slide valve inlet ports;

the slide valve including an elongated sliding member which is received for linear sliding movement along a longitudinal axis within the slide valve walls between the slide valve inlet ports and the slide valve outlet port, the elongated sliding member being movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port;

the elongated sliding member having a plurality of sliding member passageways corresponding to the slide valve inlet ports, each of the sliding member passageways connecting between its corresponding slide valve inlet port and the slide valve outlet port at a corresponding different discrete longitudinal position of the elongated sliding member; and

the collective sliding member passageways defining a series of mutually exclusive courses through the sliding member from the inlet ports to the outlet port to restrict mixing of fluids from different syringes;

wherein the outlet port comprises an outlet tube physically connected to and extending from the elongated sliding member and moveable therewith, each of the passageways communicating through the elongated sliding member with the outlet tube.

8. A catheter access system comprising:

an integrally molded base sheet forming first and second opposed slide valve walls extending therefrom, the slide valve walls forming an upwardly-open longitudinal valley therebetween;

a plurality of slide valve inlet ports extending through the first slide valve wall;

a slide valve outlet port extending through the second slide valve wall;

a plurality of syringes mounted on the integrally-molded base sheet for fluid communication with the slide valve inlet ports;

an elongated sliding member which is received for linear sliding movement within the longitudinal valley formed by the first and second slide valve walls, the elongated sliding member being movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port;

the elongated sliding member having a plurality of sliding member passageways corresponding to the slide valve inlet ports, each of the sliding member passageways connecting between its corresponding slide valve inlet port and the slide valve outlet port at a corresponding different discrete longitudinal position of the elongated sliding member.

9. A catheter access system as recited in claim 8, wherein the collective sliding member passageways define a series of mutually exclusive courses through the sliding member from the inlet ports to the outlet port to restrict mixing of fluids from different syringes.

10. A catheter access system as recited in claim 8, the inlet ports forming inlet orifices which are in sliding engagement with the elongated sliding member, the inlet orifices being longitudinally spaced from each other at a first regular pitch along the first slide valve wall, the sliding member passageways being longitudinally spaced from each other at a second regular pitch that is different from the first regular pitch.

11. A catheter access system as recited in claim 8, the outlet port forming an output orifice along the second slide valve wall which is in sliding engagement with the elongated sliding member, each of the sliding member passageways being positioned to align with the outlet port orifice at at least one of the discrete longitudinal positions of the elongated sliding member.

12. A catheter access system as recited in claim 8 and further comprising retaining lips formed along the opposed slide valve walls to retain the sliding member within the longitudinal valley.

13. A catheter access system as recited in claim 8 wherein the longitudinal valley is synclinal, the elongated sliding member being wedge-shaped to fit within the longitudinal valley.

14. A catheter access system as recited in claim 8 wherein the longitudinal valley is synclinal, the elongated sliding member being a solid wedge-shaped body, the sliding member passageways being formed therethrough.

15. A catheter access system as recited in claim 8 and further comprising:

a valley surface formed by the first slide valve wall, the slide valve inlet ports forming corresponding inlet port orifices in the valley surface;

the elongated sliding member having a sliding surface which is in sliding abutment with the valley surface and the inlet port orifice;

the sliding member passageways having open terminations along the sliding member sliding surface, each such open termination being positioned to align with a corresponding one of the inlet port orifices at a corresponding one of the discrete longitudinal positions of the elongated sliding member and being positioned to be sealed by the valley surface at other discrete longitudinal positions of the elongated sliding member.

16. A catheter access system as recited in claim 15 wherein:

the inlet port orifices are spaced longitudinally from each other along the valley surface at a first regular pitch;

the open terminations are spaced longitudinally from each other along the sliding member sliding surface at a second regular pitch;

the first and second regular pitches are different from each other so that no more than a single one of the open terminations is aligned with an inlet port orifice at any single discrete longitudinal position of the elongated sliding member.

17. A catheter access system as recited in claim 8 and further comprising:

a valley surface formed by the second slide valve wall, the slide valve outlet port forming a corresponding outlet port orifice in the valley surface;

the elongated sliding member having a sliding surface which is in sliding abutment with the valley surface and the outlet port orifice;

the sliding member passageways having open terminations along the sliding member sliding surface, each such open termination being positioned to align with the outlet port orifice at at least one of the discrete longitudinal positions of the elongated sliding member.

18. A catheter access system as recited in claim 17 wherein the open terminations comprise elongated channels formed along the sliding member sliding surface against the valley surface, the valley surface sealing against the elongated channels.

19. A catheter access system as recited in claim 8 and further comprising:

first and second opposed valley surfaces formed by the opposed slide valve walls;

the slide valve inlet ports forming corresponding inlet port orifices in the first valley surface, the slide valve outlet port forming a corresponding outlet port orifice in the second valley surface;

the elongated sliding member being having first and second sliding surfaces, the first sliding surface being in sliding abutment with the first valley surface and the inlet port orifices, the second sliding surface being in sliding abutment with the second valley surface and the outlet port orifice;

the sliding member passageways extending through the elongated sliding member from the first sliding surface to the second sliding surface, the passageways having first and second open terminations along the first and second sliding surfaces, respectively;

each of the first open terminations being positioned to align with a corresponding one of the inlet port orifices at a corresponding one of the discrete longitudinal positions of the elongated sliding member and being positioned to be sealed by the first valley surface at other discrete longitudinal positions of the elongated sliding member;

each of the second open terminations being positioned to align with the outlet port orifice at at least one of the discrete longitudinal positions of the elongated sliding member.

20. A catheter access system as recited in claim 19 wherein the open terminations comprise elongated channels formed along the sliding member sliding surface against the second valley surface, the second valley surface sealing against the elongated channels.

21. A catheter access system as recited in claim 8 wherein one of the discrete longitudinal positions of the elongated sliding member is a syringe vent position, the elongated sliding member having vent passageways which are positioned to connect from the slide valve inlet ports to ambient atmosphere when the elongated sliding member is in its syringe vent position.

22. A catheter access system as recited in claim 8 wherein the outlet port comprises an outlet tube physically connected to and extending from the elongated sliding member, each of the passageways communicating through the elongated sliding member with the outlet tube.

23. A catheter access system comprising:

a supporting base;

first and second opposed slide valve walls extending from the supporting base, the opposed slide valve walls forming a longitudinal valley therebetween;

a plurality of slide valve inlet ports extending through the first slide valve wall to form corresponding inlet port orifices, the inlet port orifices being spaced longitudinally from each other at a first regular pitch;

a slide valve outlet port extending through the second slide valve wall to form a corresponding outlet port orifice;

a plurality of syringes mounted on the supporting base for fluid communication with the slide valve inlet ports;

an elongated sliding member which is received for linear sliding movement within the longitudinal valley, the elongated sliding member being movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port;

the elongated sliding member having first and second sliding surfaces, the first sliding surface being in sliding abutment with the first slide valve wall and the inlet port orifices, the second sliding surface being in sliding abutment with the second slide valve wall and the outlet port orifice;

the elongated sliding member having a plurality of sliding member passageways extending therethrough, the passageways having first open terminations along the first sliding member sliding surface corresponding to the slide valve inlet ports, the passageways having second open terminations along the second sliding member sliding surface to communicate with the outlet port orifice;

the first open terminations being spaced longitudinally from each other along the sliding member sliding surface at a second regular pitch;

the first and second regular pitches being different from each other, a single one of the first open terminations being aligned with one of the inlet port orifices at different discrete longitudinal positions of the elongated sliding member.

24. A catheter access system as recited in claim 23 and further comprising retaining lips formed along the opposed slide valve walls to retain the sliding member within the longitudinal valley.

25. A catheter access system as recited in claim 23 wherein the longitudinal valley is synclinal, the elongated sliding member being wedge-shaped to fit within the longitudinal valley, the sliding member passageways being formed through the elongated sliding member.

26. A catheter access system as recited in claim 23 wherein the outlet port comprises an outlet tube connected to and extending from the elongated sliding member, each of the passageways communicating through the elongated sliding member with the outlet tube.

27. A catheter access system as recited in claim 23 wherein the open terminations comprise elongated channels formed along the second sliding surface of the sliding member against the second slide valve wall, the second slide valve wall sealing against the elongated channels.

28. A catheter access system comprising:

a slide valve having first and second opposed slide valve walls, the slide valve walls forming an upwardly-open longitudinal valley therebetween;

a plurality of slide valve inlet ports extending through the first slide valve wall;

a slide valve outlet port extending through the second slide valve wall;

a plurality of syringes mounted on the integrally-molded base sheet for fluid communication with the slide valve inlet ports;

an elongated sliding member which is received for linear sliding movement within the longitudinal valley formed by the first and second slide valve walls, the elongated sliding member being movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port; and

the elongated sliding member having a plurality of sliding member passageways corresponding to the slide valve inlet ports, each of the sliding member passageways connecting between its corresponding slide valve inlet port and the slide valve outlet port at a corresponding different discrete longitudinal position of the elongated sliding member; and

the longitudinal valley being synclinal, the elongated sliding member being wedge-shaped to fit within the longitudinal valley.

29. A catheter access system as recited in claim 28 and further comprising retaining lips formed along the opposed slide valve walls to retain the sliding member within the longitudinal valley.

30. A catheter access system as recited in claim 28 wherein the outlet port comprises an outlet tube physically connected to and extending from the elongated sliding member and moveable therewith, each of the passageways communicating through the elongated sliding member with the outlet tube.