Self-priming solution lines and a method and system for using same

• US 6,036,680 A
• Filed: 01/27/1997
• Issued: 03/14/2000
• Est. Priority Date: 01/27/1997
• Status: Expired due to Fees

• Current Assignee: Baxter International Inc.
• Original Assignee: Baxter International Inc.
• Inventors: Balteau, Patrick, Horne, Peter, Henaut, Eric J., Ling, Michael T. K.
• Primary Examiner(s): Stright, Jr., Ronald
• Assistant Examiner(s): Cho, David J.
• Application Number:
  US08/789,109
• Time in Patent Office: 1,142 Days
• Field of Search: 604/403, 604/412, 604/413, 604/414, 604/415, 604/905
• US Class Current: 604/414
• CPC Class Codes: A61M 2005/1403 Flushing or purging
• CPC Class Codes: A61M 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14

Abstract

A system, a method and administration lines are provided for self-priming of a solution delivery system. The administration lines are arranged such that resultant forces acting on the lines create different forces applied on each lumen resulting in solution flowing in one of the lumen undergoing a higher isostatic pressure. The lumens forming the administration line may be formed from concentric tubings or formed from separate tubings extending varied lengths into the solution container. As a result, automatic priming of the administration line and the solution delivery system is provided.

Claims

1. A system for self-priming a fluid delivery system, the system comprising:

a container having an interior holding a solution;

a chamber having an interior;

a first lumen in fluid communication with the solution in the interior of the container wherein a first end of the first lumen extends into the interior of the container and into the solution and a second end of the first lumen extends into the interior of the chamber, the first end of the first lumen having a first cross sectional area; and

a second lumen in fluid communication with the solution in the interior of the container wherein a first end of the second lumen extends into the container and into the solution a distance greater than the first end of the first lumen, a second end of the second lumen extends into the interior of the chamber, the first end of the second lumen having a second cross sectional area, the second cross sectional area being less than the first cross sectional area, wherein when the container is disposed vertically above the chamber, both the first and second lumens and the chamber will be primed with the solution and any gas disposed in the first and second lumens and the chamber will be forced upward through the second lumen into the container.

2. The system of claim 1 wherein the first lumen and the second lumen are integrally formed having a common wall separating the first lumen from the second lumen.

3. The system of claim 1 wherein the second lumen is concentrically located within the first lumen.

4. The system of claim 1 wherein the first lumen and the second lumen share a common wall and are non-symmetrical with respect to the wall.

5. The system of claim 1 wherein the first lumen is remotely situated from the second lumen.

6. The system of claim 1 further comprising:

a first port to which the first lumen is attached; and

a second port to which the second lumen is attached wherein the second port extends from the container a distance greater than the first port.

7. The system of claim 1 wherein the first lumen and the second lumen are integrally formed and the first end of each of the lumens are beveled to form an angled tip in the interior of the container.

8. The system of claim 1 further comprising:

a clamp separating the chamber into two areas.

9. An administration line for connecting between a container having an interior holding a solution and a chamber having an interior, the administration line comprising:

a first lumen having a first end and a second end wherein the first end extends into the interior of the container and into the solution and the second end extends into the interior of the chamber to provide fluid communication between the container and the chamber, the first end of the first lumen having a first cross sectional area; and

a second lumen having a first end and a second end wherein the first end of the second lumen extends into the container and into the solution a distance greater than the first end of the first lumen, the second end extends into the interior of the chamber to provide fluid communication between the container and the chamber, the first end of the second lumen having a second cross sectional area, the second cross sectional area being less than the first cross sectional area, wherein when the container is disposed vertically above the chamber, both the first and second lumens and the chamber will be primed with the solution and any gas disposed in the first and second lumens and the chamber will be forced upward through the second lumen into the container.

10. The administration line of claim 9 wherein the first lumen and the second lumen are integrally formed.

11. The administration line of claim 9 wherein the first lumen and the second lumen are remotely situated.

12. The administration line of claim 9 wherein the first lumen and the second lumen are concentrically arranged with the second lumen extending through the first lumen.

13. The administration line of claim 9 wherein the first lumen and the second lumen share a common wall and are non-symmetrical with respect to the wall.

14. The administration line of claim 9 wherein the first lumen and the second lumen are integrally formed and the first end of each of the lumens are beveled to form an angled tip in the interior of the container.

15. A method for self-priming of a fluid delivery system, the method comprising the steps of:

providing a container having an interior holding a solution;

providing a first lumen having a first end in fluid communication with the solution in the interior of the container; and

providing a second lumen having a first end in fluid communication with the solution in the interior of the container wherein the first end of the second lumen extends into the interior of the container and into the solution a distance greater than the first end of the first lumen extends into the interior of the container and into the solution, the first end of the first lumen having a first cross sectional area, the first end of the second lumen having a second cross sectional area, the second cross sectional area being less than the first cross sectional area;

providing a chamber in fluid communication with the first lumen and the second lumen wherein the chamber is situated remotely from and vertically below the container such that solution from the container flows through the first lumen and the second lumen to the chamber and air or gas flows from the chamber and first and second lumens through the second lumen and into tire container.

16. The method of claim 15 wherein the first lumen and the second lumen are integrally formed.

17. The method of claim 15 wherein the first lumen and the second lumen are remotely situated.

18. The method of claim 15 wherein the first lumen and the second lumen share a common wall and are nonsymmetrical with respect to the wall.

19. The method of claim 15 wherein the first lumen and the second lumen are concentrically arranged with the second lumen extending through the first lumen.