Manifold with check valve positioned within manifold body

• US 6,099,511 A
• Filed: 03/19/1999
• Issued: 08/08/2000
• Est. Priority Date: 03/19/1999
• Status: Expired due to Term

• Current Assignee: Merit Medical Systems, Inc.
• Original Assignee: Merit Medical Systems, Inc.
• Inventors: Devos, Gilles J., Lampropoulos, Fred P., Padilla, William
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US09/273,033
• Time in Patent Office: 508 Days
• Field of Search: 604/246, 604/247, 604/248, 604/30, 604/32, 604/82, 604/83, 604/236, 604/183, 604/184
• US Class Current: 604/246
• CPC Class Codes: A61M 2039/229 Stopcocks
• 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 5/1408 in parallel, e.g. manifolds, sequencing valves access sites A61M39/02; tube connectors A61M39/10

Abstract

A manifold has a manifold body defining a fluid flow pathway therethrough. The manifold body has a plurality of valves, at least one of which is a check valve. The manifold is coupled at one end to a syringe or other fluid delivery means and to an opposing end to a catheter or other fluid receiving means. By being positioned within the manifold body, the check valve is reinforced and stabilized within the manifold.

Claims

1. A manifold, comprising:

a manifold body having a proximal end and a distal end, the manifold body defining a fluid flow pathway extending between the proximal and distal ends of the manifold body, the manifold body including a plurality of valves, at least one valve having (i) housing means for defining first, second and third fluid flow passageways, each of said passageways intersecting in a common passageway intersection cavity; and

(ii) valving means situated within the intersection cavity for responding to a pressure laden fluid within one passageway to open another passageway and simultaneously close yet another passageway;

means for coupling the proximal end of the manifold body in fluid communication with fluid delivery means for delivering fluid to the manifold body; and

means for coupling the distal end of the manifold body in fluid communication with means for receiving fluid flowing from the fluid flow pathway of the manifold body.

2. A manifold as recited in claim 1, wherein the valving means comprises means for responding to a pressure laden fluid within the first passageway to selectively open the second passageway and simultaneously close the third passageway, such that fluid in the first passageway flows from the first passageway, through the intersection cavity, and into the second passageway without entering the third passageway, wherein the valving means also responds to a pressure laden fluid flowing into the intersection cavity from the second passageway to seal the first passageway and to open the third passageway.

3. A manifold as recited in claim 1, wherein one of the valves of the manifold body comprises a stopcock-actuated valve.

4. A manifold as recited in claim 3, wherein the manifold body further comprises means for coupling the housing means of the at least one valve to the stopcock-actuated valve such that the stopcock-actuated valve is in fluid communication with the third passageway of the housing means.

5. A manifold as recited in claim 1, further comprising support means coupled to the housing means of the at least one valve for supporting the housing means.

6. A manifold as recited in claim 5, wherein the support means comprises the manifold body including a seat coupled to housing means.

7. A manifold as recited in claim 5, wherein the support means comprises a support member coupled to the housing means.

8. A manifold as recited in claim 7, wherein the support member comprises a rigid support plate.

9. A manifold, comprising:

a manifold body having a proximal end and a distal end, the manifold body defining a fluid flow pathway extending between the proximal and distal ends of the manifold body, the manifold body including a check valve, a second valve, and means for coupling the check valve to the second valve such that the check valve is in fluid communication with the second valve;

means for coupling the proximal end of the manifold body in fluid communication with fluid delivery means for delivering fluid to the manifold body; and

means for coupling the distal end of the manifold body in fluid communication with means for receiving fluid flowing from the fluid flow pathway of the manifold body.

10. A manifold as recited in claim 9, wherein the means for coupling the check valve to the second valve comprises a tube coupled between the second valve and the check valve.

11. A manifold as recited in claim 10, wherein the tube is integrally coupled between the second valve and the check valve.

12. A manifold as recited in claim 9, wherein the second valve comprises a stopcock-actuated valve.

13. A manifold as recited in claim 9, wherein the check valve is coupled to the fluid delivery means.

14. A manifold as recited in claim 9, wherein the manifold body further comprises a third valve;

and (ii) means for coupling the second and third valves such that the second and third valves are in fluid communication.

15. A manifold as recited in claim 9, wherein the check valve comprises a main valve chamber and a plurality of ports coupled to the main valve chamber.

16. A manifold as recited in claim 15, further comprising support means coupled to the main valve chamber of the check valve for supporting the main valve chamber of the check valve.

17. A manifold as recited in claim 16, wherein the support means comprises the manifold body including a seat coupled to the main valve chamber of the check valve.

18. A manifold as recited in claim 16, wherein the support means comprises a support member coupled to (i) the means for coupling the check valve to the second valve and (ii) the main valve chamber of the check valve.

19. A manifold as recited in claim 16, wherein the support means comprises a rigid support plate coupled to the second valve and the main chamber of the check valve.

20. A manifold as recited in claim 9, wherein the check valve has

(i) a housing defining a first fluid flow passageway, a second fluid flow passageway, and a third fluid flow passageway, each of said passageways intersecting in a common passageway intersection cavity;

and

(ii) valving means situated within the intersection cavity for responding to a pressure laden fluid within the first passageway to selectively open the second passageway and simultaneously close the third passageway, such that fluid in the first passageway flows from the first passageway, through the intersection cavity, and into the second passageway without entering the third passageway, wherein the valving means also responds to a pressure laden fluid flowing into the intersection cavity from the second passageway to seal the first passageway and to open the third passageway.

21. A catheter manifold, comprising:

(i) a manifold body having a proximal end and a distal end, the manifold body defining a fluid flow pathway extending between the proximal and distal ends of the manifold body, the manifold body including;

(A) a first valve having

(1) a housing defining a first fluid flow passageway, a second fluid flow passageway, and a third fluid flow passageway, each of said fluid flow passageways intersecting in a common passageway intersection cavity; and

(2) valving means situated in the intersection cavity for responding to a pressure laden fluid within the first passageway to selectively open the second passageway and simultaneously close the third passageway, such that fluid in the first passageway flows from the first passageway, through the intersection cavity, and into the second passageway without entering the third passageway, wherein the valving means also responds to a pressure laden fluid flowing into the intersection cavity from the second passageway to seal the first passageway and to open the third passageway; and

(B) a second valve coupled to the first valve such that the third passageway of the first valve is in fluid communication with the second valve;

(ii) means for coupling the proximal end of the manifold body in fluid communication with fluid delivery means for delivering fluid to the manifold body; and

(iii) means for coupling the distal end of the manifold body in fluid communication with a catheter.

22. A manifold as recited in claim 21, wherein the first valve comprises a check valve.

23. A manifold as recited in claim 21, wherein the second valve comprises a stopcock-actuated valve.

24. A catheter manifold, comprising:

(i) a manifold body having a proximal end and a distal end, the manifold body defining a fluid flow pathway extending between the proximal and distal ends of the manifold body, the manifold body including;

(A) a check valve having a main valve chamber; and

(B) a second valve coupled to the check valve such that the check valve is in fluid communication with the second valve; and

(ii) means for coupling the proximal end of the manifold body in fluid communication with fluid delivery means for delivering fluid to the manifold body; and

(iii) means for coupling the distal end of the manifold body in fluid communication with a catheter.

25. A manifold as recited in claim 24, further comprising support means coupled to the main valve chamber of the check valve for supporting the main valve chamber of the check valve.

26. A manifold as recited in claim 25, wherein the support means for supporting the main valve chamber of the check valve comprises a support member coupled to the second valve and the main valve chamber of the check valve.

27. A manifold as recited in claim 26, wherein the support means for supporting the main valve chamber of the check valve comprises a rigid support plate.

28. A manifold as recited in claim 25, wherein a tube is coupled to the check valve and the second valve such that the second valve is in fluid communication with the check valve.

29. A manifold as recited in claim 28, wherein the support means for supporting the main valve chamber of the check valve comprises the manifold body including a seat coupled to the main valve chamber of the check valve and to the tube.

30. A manifold as recited in claim 28, wherein the support means for supporting the main valve chamber of the check valve comprises a support member coupled to the tube and the main valve chamber of the check valve.

31. A manifold as recited in claim 28, wherein the support means for supporting the main valve chamber of the check valve comprises a rigid support plate coupled to the tube and the main valve chamber of the check valve.

32. A manifold as recited in claim 31, wherein the rigid support plate is coupled at one end thereof to the manifold body, and wherein the support means further comprises a beam coupled to an opposing end of the rigid support plate along the longitudinal axis thereof.

33. A manifold as recited in claim 28, wherein the support means for supporting the main valve chamber of the check valve comprises

a seat configured to receive a portion of the main valve chamber of the check valve, the seat being coupled to the tube;

and

a rigid support plate coupled to the tube and the seat.

34. A catheter manifold, comprising:

(i) a manifold body having a proximal end and a distal end, the manifold body defining a fluid flow pathway extending between the proximal and distal ends of the manifold body, the manifold body including;

(A) a check valve having a main valve chamber;

(B) a stopcock-actuated valve; and

(C) a tube coupling the check valve to the stopcock-actuated valve such that the check valve in fluid communication with the stopcock-actuated valve; and

(ii) means for coupling the proximal end of the manifold body in fluid communication with fluid delivery means for delivering fluid to the manifold body; and

(iii) means for coupling the distal end of the manifold body in fluid communication with a catheter.

35. A catheter manifold as recited in claim 34, wherein the tube is integrally coupled between the check valve and the stopcock-actuated valve.