System for managing delivery of contrast media

• US 5,569,208 A
• Filed: 08/01/1995
• Issued: 10/29/1996
• Est. Priority Date: 08/01/1995
• Status: Expired due to Fees

• Current Assignee: Merit Medical Systems, Inc.
• Original Assignee: Merit Medical Systems, Inc.
• Inventors: Woelpper, William R., Stoker, Ronald L., Young, Richard L.
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): ELGART, VANITHA M
• Application Number:
  US08/509,926
• Time in Patent Office: 455 Days
• Field of Search: 604/251, 604/254, 604/258, 604/183, 604/246, 604/248, 604/83, 251/98, 251/111, 251/101, 137/587, 137/589
• US Class Current: 604/183
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1412 Burettes, measuring cylinders for laboratory use B01L3/02

Abstract

A system for managing delivery of contrast media from a contrast media source to a patient. The system includes a chamber for receiving fluid from the contrast media source in a controlled manner. Attached at one end of the chamber is an inlet line and, at the opposite end, an outlet line. Disposed in the outlet line is a valve. The valve provides a first position which permits the flow of contrast media through the line. The valve further provides a second position which permits flow of fluid from the point of the valve toward the patient, while at the same time venting the system at the point of the valve.

Claims

1. A system adapted for managing delivery of contrast media from a contrast media source to a manifold assembly which includes a syringe for injection from the manifold to a patient comprising:

a. chamber means for receiving fluid from a contrast media source said chamber means having an inlet port at one end thereof and an outlet port at art opposite end thereof;

b. an inlet line adapted for connection at one end thereof to a contrast media source, said inlet line connected at art opposite end thereof to said inlet port of said chamber means;

c. an outlet line connected at one end thereof to said outlet port of said chamber means, said outlet line adapted for connection at an opposite end thereof to a manifold assembly; and

d. a valve means disposed in said outlet line for controlling the flow of contrast media therethrough and comprising a means for venting to atmosphere, said valve means further comprising a handle means having a first position which permits flow of fluid through the line without venting to atmosphere, said handle means having a second position which permits fluid flow toward a patient while at the same time venting the system to atmosphere through said means for venting.

2. A contrast media delivery system as defined in claim 1 further comprising a deflector means disposed within said chamber means near said inlet port for routing fluid entering said chamber means down the sides of said chamber means.

3. A contrast media delivery system as defined in claim 2 further comprising a membrane and detent means disposed on an inner surface of said deflector means for preventing sealing engagement of said membrane with said deflector means.

4. A contrast media delivery system as defined in claim 1 further comprising a vent means for venting said chamber means and positioned thereon, said vent means having a first and second side, said first side having a button having first position and a second position thereby closing said vent when said button is in said first position and opening said vent when said button is in said second position, said second side having a filter which allows for venting therethrough.

5. A vent means as defined in claim 4 said vent means having a cage means attached thereto for preventing external occlusion of said vent.

6. A system adapted for managing delivery of contrast media from a contrast media source to a manifold assembly which includes a syringe for injection from the manifold to a patient comprising:

a. chamber means for receiving fluid from a contrast media source said chamber means having an inlet port at one end thereof and an outlet port at an opposite end thereof;

b. an inlet line adapted for connection at one end thereof to a contrast media source, said inlet line connected at an opposite end thereof to said inlet port of said chamber means;

c. an outlet line connected at one end thereof to said outlet port of said chamber means, said outlet line adapted for connection at an opposite end thereof to a manifold assembly;

d. a first valve means disposed in said inlet line for controlling the flow of contrast media therethrough and comprising a means for venting to atmosphere, said first valve means further comprising a handle means having a first position which permits flow of fluid through the line without venting to atmosphere, said handle means having a second position which permits fluid flow toward a patient while at the same time venting the system to atmosphere through said means for venting; and

e. a second valve means disposed in said outlet line for providing alternative control of the flow of contrast media therethrough and comprising a means for venting to atmosphere, said second valve means further comprising a handle means having a first position which permits flow of fluid through the line without venting to atmosphere, said handle means having a second position which permits fluid flow toward a patient while at the same time venting the system to atmosphere through said means for venting.

7. A contrast media delivery system as defined in claim 6 further comprising a deflector means disposed within said chamber means near said inlet port for routing fluid entering said chamber means down the sides of said chamber means.

8. A contrast media delivery system as defined in claim 7 further comprising a membrane and detent means disposed on an inner surface of said deflector means for preventing sealing engagement of said membrane with said deflector means.

9. A contrast media delivery system as defined in claim 6 further comprising a vent means for venting said chamber means and positioned thereon, said vent means having a first and second side, said first side having a button having first position and a second position thereby closing said vent when said button is in said first position and opening said vent when said button is in said second position, said second side having a filter which allows for venting therethrough.

10. A vent means as defined in claim 9 said vent means having a cage means attached thereto for preventing external occlusion of said vent.

11. A system adapted for managing delivery of contrast media from a contrast media source to a manifold assembly which includes a syringe for injection from the manifold to a patient comprising:

a. chamber means for receiving fluid from a contrast media source, said chamber means having an inlet port at one end thereof and an outlet port at an opposite end thereof;

b. an inlet line adapted for connection at one end thereof to a contrast media source, said inlet line connected at an opposite end thereof to said inlet port of said chamber means;

c. an outlet line connected at one end thereof to said outlet port of said chamber means, said outlet line adapted for correction at an opposite end thereof to a manifold assembly; and

d. a valve means having a side port for venting to atmosphere, said valve means being disposed in said outlet line for controlling the flow of contrast media therethrough, said valve means further comprising a handle means having a first position which permits flow of fluid through the line without venting to atmosphere, said handle means having a second position which permits fluid flow toward a patient while at the same time venting the system to atmosphere through said side port.

12. A contrast media delivery system as defined in claim 11 further comprising a deflector means disposed within said chamber means near said inlet port for routing fluid entering said chamber means down the sides of said chamber means.

13. A contrast media delivery system as defined in claim 12 further comprising a membrane and detent means disposed on an inner surface of said deflector means for preventing sealing engagement of said membrane with said deflector means.

14. A contrast media delivery system as defined in claim 11 further comprising a vent means for venting said chamber means and positioned thereon, said vent means having a first and second side, said first side having a button having first position and a second position thereby closing said vent when said button is in said first position and opening said vent when said button is in said second position, said second side having a filter which allows for venting therethrough.

15. A vent means as defined in claim 14 said vent means having a cage means attached thereto for preventing external occlusion of said vent.

16. A system adapted for managing delivery of contrast media from a contrast media source to a manifold assembly which includes a syringe for injection from the manifold to a patient comprising:

a. chamber means for receiving fluid from a contrast media source said chamber means having an inlet port at one end thereof and an outlet port at an opposite end thereof;

b. an inlet line adapted for connection at one end thereof to a contrast media source, said inlet line connected at an opposite end thereof to said inlet port of said chamber means;

c. an outlet line connected at one end thereof to said outlet port of said chamber means, said outlet line adapted for correction at an opposite end thereof to a manifold assembly;

d. a first valve means having a side port for venting to atmosphere, said valve means being disposed in said inlet line for controlling the flow of contrast media therethrough, said first valve means further comprising a handle means having a first position which permits flow of fluid through the line without venting to atmosphere, said handle means a second position which permits fluid flow toward a patient while at the same time venting the system to atmosphere through said side port; and

e. a second valve means having a side port for venting to atmosphere, said valve means being disposed in said outlet line for providing alternative control of the flow of contrast media therethrough, said second valve means further comprising a handle means having a first position which permits flow of fluid through the line without venting to atmosphere, said handle means having a second position which permits fluid flow toward a patient while at the same time venting the system to atmosphere through said side port.

17. A contrast media delivery system as defined in claim 16 further comprising a deflector means disposed within said chamber means near said inlet port for routing fluid entering said chamber means down the sides of said chamber means.

18. A contrast media delivery system as defined in claim 17 further comprising a membrane and detent means disposed on an inner surface of said deflector means for preventing sealing engagement of said membrane with said deflector means.

19. A contrast media delivery system as defined in claim 16 further comprising a vent means for venting said chamber means and positioned thereon, said vent means having a first and second side, said first side having a button having first position and a second position thereby closing said vent when said button is in said first position and opening said vent when said button is in said second position, said second side having a filter which allows for venting therethrough.

20. A vent means as defined in claim 19 said vent means having a cage means attached thereto for preventing external occlusion of said vent.

21. A system adapted for managing delivery of contrast media from a contrast media source to a manifold assembly which includes a syringe for injection from the manifold to a patient comprising:

a. chamber means for receiving fluid from a contrast media source said chamber means having an inlet port at one end thereof and an outlet port at an opposite end thereof, said chamber means further comprising;

i. a cylindrical body member having a first end with an interior portion and an exterior portion, and a second end with an interior portion and an exterior portion;

ii. a membrane slidably located within said cylindrical body member;

iii. an inlet port means for connecting to an inlet line positioned on said exterior portion of said first end;

iv. a vent means positioned on said exterior portion of said first end for venting said chamber means;

v. a deflection means positioned on said interior portion of said first end for deflecting fluid down a wall of said cylindrical body member as it enters said chamber means;

vi. a plurality of detents positioned on said interior portion of said first end whereby seating of said membrane in said first end is prevented;

vii. a nipple means positioned on said interior portion of said second end for ensuring said membrane seats with said interior portion of said second end thereby to prevent fluid flow; and

viii. an outlet connection means positioned on said exterior portion of said second end for connecting to an inlet line;

b. an inlet line adapted for connection at one end thereof to a contrast media source, said inlet line connected at an opposite end thereof to said inlet port of said chamber means;

c. an outlet line connected at one end thereof to said outlet port of said chamber means, said outlet line adapted for connection at an opposite end thereof to a manifold assembly;

d. a first valve means having a side port for venting to atmosphere, said valve means being disposed in said inlet line for controlling the flow of contrast media therethrough, said first valve means further comprising a handle means having a first position which permits flow of fluid through the line without venting to atmosphere, said handle means having a second position which permits fluid flow toward a patient while at the same time venting the system to atmosphere through said side port; and

e. a second valve means having a side port for venting to atmosphere, said valve means being disposed in said outlet line for providing alternative control of the flow of contrast media therethrough, said second valve means further comprising a handle means having a first position which permits flow of fluid through the line without venting to atmosphere, said handle means having a second position which permits fluid flow toward a patient while at the same time venting the system to atmosphere through said side port.