System for heating instillation or transfusion liquids

• US 20050089319A1
• Filed: 09/03/2004
• Published: 04/28/2005
• Est. Priority Date: 09/01/2000
• Status: Abandoned Application

• Current Assignee: Michael Mitsunaga, Yoshiaki Yamamoto
• Original Assignee: Michael Mitsunaga, Yoshiaki Yamamoto
• Inventors: Yamamoto, Yoshiaki, Mitsunaga, Michael
• Application Number:
  US10/934,945
• Publication Number:
  US 20050089319A1
• Time in Patent Office: Days
• US Class Current: 392/467
• CPC Class Codes: A61M 5/44 having means for cooling or heating the devices or media

Abstract

A system for warming a fluid includes a fluid warmer having a housing that retains therein a heating element, and cartridge that is retained inside the housing and which receives heat from the heating element. The cartridge has a rigid plate having a first surface and a second opposing surface, with the plate having a meandering path provided therein. The cartridge also has a sheet of film that covers the first and second surfaces.

Claims

1. A cartridge for use in a fluid warmer, comprising:

a rigid plate having a first surface and a second opposing surface, the plate being heat conductive and having a meandering path provided therein; and

a sheet of film that completely covers the first and second surfaces.

2. The cartridge of claim 1, wherein the film is flexible.

3. The cartridge of claim 1, wherein the film is thin.

4. The cartridge of claim 1, wherein the meandering path comprises a plurality of alternating U-shapes.

5. The cartridge of claim 1, wherein the film is a single film that is wrapped around the plate.

6. The cartridge of claim 1, wherein the rigid plate is made of a non-DEHP plastic material.

7. The cartridge of claim 1, wherein the rigid plate and the film are made of a non-DEHP plastic material.

8. (canceled)

9. A cartridge for use in a fluid warmer, comprising:

a rigid plate having a first surface and a second opposing surface, the plate being heat conductive and having a meandering path provided therein;

a first sheet of film that covers the first surface; and

a second sheet of film that covers the second surface.

10. The cartridge of claim 9, wherein the film is flexible.

11. The cartridge of claim 9, wherein the film is thin.

12. The cartridge of claim 9, wherein the meandering path comprises a plurality of alternating U-shapes.

14. The cartridge of claim 9, wherein the rigid plate is made of a non-DEHP plastic material.

15. The cartridge of claim 9, wherein the films are made of a non-DEHP plastic material.

16. The cartridge of claim 14, wherein the films are made of a non-DEHP plastic material.

13. (canceled)

17. A system for warming a fluid, comprising:

a fluid warmer having a housing that retains therein a heating element,

said housing comprising an upper section and a lower section hingedly joined at one side of the upper and lower sections, said upper and lower sections adapted to rotatable open; and

a cartridge that is retained inside the housing and which receives heat from the heating element, comprising;

a rigid heat-conducting plate having a first surface and a second opposing surface, the plate having a meandering path provided therein; and

a sheet of heat-conducting film that covers the first and second surfaces, said film being adapted to receive heat from the heating element.

20. The system of claim 17, wherein the meandering path comprises a plurality of alternating U-shapes.

21. The system of claim 17, wherein the film is a single film that is wrapped around the plate.

24. The system of claim 17, wherein the fluid warmer includes:

a heating element; and

a contact plate which thermally couples the heating element with the film of the cartridge, wherein the contact plate has a plurality of separate regions.

26. The cartridge of claim 17, wherein the rigid plate and the film are made of a non-DEHP plastic material.

18. (canceled)

19. (canceled)

22. (canceled)

23. (canceled)

25. (canceled)

27. (canceled)

28. (canceled)

29-31. -31. (canceled)