FLUID DELIVERY SYSTEM HAVING A PLURALITY OF RESILIENT PRESSURIZING CHAMBERS

• US 20080071220A1
• Filed: 11/20/2007
• Published: 03/20/2008
• Est. Priority Date: 03/04/2005
• Status: Active Grant

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Kalafut, John, Reilly, David, Rhinehart, Edward, Hack, Dennis
• Granted Patent: US 8,133,205 B2
• Time in Patent Office: Days
• US Class Current: 604/153
• CPC Class Codes: A61M 2205/128 with incorporated valves
• CPC Class Codes: A61M 2206/22 eliminating pulsatile flows, e.g. by the provision of a dampening chamber
• CPC Class Codes: A61M 5/002 Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics needle protection, e.g. caps, A61M5/3202; for sharps A61B50/3001
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1422 with double acting or multiple pistons
• 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 5/16881 Regulating valves on-off valves, e.g. clamps A61M39/28

Abstract

A fluid delivery system includes a fluid container, two or more pressurizing chambers in fluid connection with the fluid container, a drive mechanism in operative connection with the two or more pressurizing chambers to pump fluid from the fluid container and an outlet in fluid connection with the two or more pressurizing chambers. Each of the two or more pressurizing chambers is formed from a flexible, resilient material that is adapted to be compressed to pressurize fluid therewithin.

Claims

1. A fluid delivery system comprising:

a fluid container;

a pumping mechanism comprising two or more pressurizing chambers in fluid connection with the fluid container, each of the two or more pressurizing chambers being formed from a flexible, resilient material that is adapted to be compressed to pressurize fluid therewithin;

a drive mechanism in operative connection with the two or more pressurizing chambers of the pumping mechanism to pump fluid from the fluid container; and

an outlet in fluid connection with the two or more pressurizing chambers.

2. The fluid delivery system of claim 1, further comprising two or more tubing segments in fluid connection between the two or more pressurizing chambers and the fluid container to place the two or more pressurizing chambers in fluid connection with the fluid container.

3. The fluid delivery system of claim 1, further comprising a check valve in fluid connection with the outlet to prevent contaminants from entering into the pumping mechanism.

4. The fluid delivery system of claim 1, further comprising two or more first valves disposed in the two or more pressurizing chambers between the fluid container and the outlet, the two or more first valves adapted to allow flow from the fluid container into the two or more pressurizing chambers but to prevent flow from the two or more pressurizing chambers into the fluid container.

5. The fluid delivery system of claim 4, further comprising two or more second valves disposed in the two or more pressurizing chambers between the two or more first valves and the outlet, the two or more second valves adapted to allow flow from the two or more pressurizing chambers into the outlet but to prevent flow from the outlet into the two or more pressurizing chambers.

6. The fluid delivery system of claim 1, further comprising a manifold in fluid connection with the two or more pressurizing chambers and a tubing segment in fluid connection with the fluid container and the manifold to place the two or more pressurizing chambers in fluid connection with the fluid container.

7. The fluid delivery system of claim 6 wherein the tubing segment comprises a connector that cooperates with a cooperating connector on the fluid container to place the two or more pressurizing chambers in fluid connection with the fluid container.

8. The fluid delivery system of claim 7 wherein the connector on the tubing segment is a piercing member and the cooperating connector on the fluid container is a pierceable septum.

9. The fluid delivery system of claim 1 wherein the two or more pressurizing chambers comprises three pressurizing chambers.

10. The fluid delivery system of claim 1 wherein the fluid container comprises an inlet port through which additional fluid or another fluid can be delivered into the fluid container.

11. The fluid delivery system of claim 1 wherein the fluid container comprises one or more outlet ports through which fluid can be delivered to a destination other than the pumping mechanism.

12. The fluid delivery system of claim 1 wherein the pumping mechanism is permanently in fluid connection with the fluid container.

13. The fluid delivery system of claim 1 wherein the drive mechanism comprises two or more drive members that cooperate with the two or more pressurizing chambers, respectively, to pressurize fluid within the two or more pressurizing chambers.

14. The fluid delivery system of claim 13 wherein the drive members are driven in a reciprocating manner to compress the respective pressurizing chambers in an alternating, timed sequence to provide substantially continuous fluid flow from the outlet.

15. The fluid delivery system of claim 13 wherein the drive mechanism further comprises a closure that is adapted to be moved between an open position and a closed position of the drive mechanism.

16. The fluid delivery device of claim 1 wherein the flexible material of the two or more pressurizing chambers is suitably resilient such that recovery of the flexible material creates a pressure difference between the two or more pressurizing chambers and the fluid container suitable to draw fluid from the fluid container into the two or more pressurizing chambers.

17. The fluid delivery system of claim 1, further comprising at least one tubing set that is adapted to be connected to the outlet.

18. The fluid delivery system of claim 17 wherein the at least one tubing set comprises a plurality of disposable tubing sets that are connected to the outlet sequentially to allow injection of fluid from the fluid container into multiple patients.

19. The fluid delivery system of claim 18 wherein the outlet comprises a swabable connector that is adapted to be cleaned after a disposable tubing set has been removed therefore and prior to connection of another disposable tubing set thereto.

20. A fluid delivery system comprising:

at least one inlet connectable to a fluid container;

at least two resilient pressurizing chambers in fluid connection with the at least one inlet, each of the at least two pressurizing chambers being formed from a flexible material that can be compressed to pressurize fluid within the at least two pressurizing chambers;

a common outlet in fluid connection with the at least two pressurizing chambers;

at least two inlet valves, each in fluid connection with a respective one of the at least two pressurizing chambers between the fluid container and the common outlet, the at least two inlet valves being operable to allow fluid to enter the at least two pressurizing chambers from the fluid container but to prevent fluid from flowing from the at least two pressurizing chambers into the fluid container; and

at least two outlet valves, each in fluid connection with a respective one of the at least two pressurizing chambers between the at least two pressurizing chambers and the common outlet, the at least two outlet valves being operable to allow fluid to enter the common outlet from the at least two pressurizing chambers but to prevent fluid from flowing from the common outlet into the at least two pressurizing chambers.