IV fluid warmer

• US 5,408,576 A
• Filed: 10/28/1992
• Issued: 04/18/1995
• Est. Priority Date: 10/28/1992
• Status: Expired due to Term

• Current Assignee: Medical Products, Inc. (Novatek International Incorporated)
• Original Assignee: Robert A. Bishop
• Inventors: Bishop, Robert A.
• Primary Examiner(s): Walberg, Teresa J.
• Application Number:
  US07/967,434
• Time in Patent Office: 902 Days
• Field of Search: 392/470, 392/443, 392/444, 219/385, 219/386, 219/387, 219/521, 219/528
• US Class Current: 392/470
• CPC Class Codes: A61M 5/445 the media being heated in the reservoir, e.g. warming bloodbags

Abstract

A cabinet structure is specially adapted for receiving a plurality of IV fluid bags. When IV bags are placed inside this cabinet structure, the user turns on a power switch to begin a very specific and controlled heating cycle. A temperature indicator on the front of the cabinet allows the user to ascertain when the desired temperature has been reached. When an IV bag is desired for use, it is removed directly from the side of the cabinet through an opening approximately the size of the IV bag. A temperature sensor inside the bag compartment allows for automatic regulation of the temperature of a pad of heating filaments located along the back face of the inside the cabinet. The heating elements are covered by a rubber layer to protect the bags from melting. The cabinet structure can be fastened to any IV pole, hung on the side of an anesthesia cart or be mounted directly to a wall.

Claims

1. A fluid warming apparatus comprising:

a cabinet structure adapted to receive a plurality of fluid containers, said cabinet structure having an access opening in one wall thereof for individual removal of the plurality of fluid containers, said access opening being permanently open;

a thin multilayered heating pad covering one side of an internal wall of said cabinet structure;

a sensor located within a portion of said heating pad for sensing the temperature of said pad;

a thermostat controller contained within said cabinet structure and connected to said heating pad for regulating the temperature of said pad;

a digital temperature indicator located externally on said cabinet structure and connected to said heating pad to provide a visual temperature indication; and

,

an on/off switch for providing power to said thermostat controller to start a preset heating cycle to warm said plurality of fluid containers.

2. A fluid warming apparatus as per claim 1, wherein said fluid containers are IV fluid containers.

3. A fluid warming apparatus as per claim 1, wherein said thin multilayered heating pad comprises a rubber outer layer, an internal metallic array of heating elements and a multilayered pressure sensitive adhesive backing.

4. A fluid warming apparatus as per claim 3, wherein said sensor is located beneath said rubber outer layer.

5. A fluid warming apparatus as per claim 1, wherein said thermostatic controller is located in a separate compartment in said cabinet structure, separating it from the heating pad assembly.

6. A fluid warming apparatus as per claim 5, wherein said thermostatic controller is preset to a temperature range of 102°

-105°

F. (38°

-40°

C.).

7. A fluid warming apparatus as per claim 1, wherein said cabinet structure is adapted to receive up to 5 fluid containers.

8. A fluid warming apparatus as per claim 1 wherein said sensor is located adjacent said opening in said side wall.

9. A fluid warming apparatus as per claim 1 wherein said cabinet structure includes a securing means for mounting the apparatus in an upright position.

14. A fluid warming apparatus as per claim 9, wherein said cabinet structure is adapted to receive up to 5 fluid containers.

10. A fluid warming apparatus comprising:

a cabinet structure including front, back, top, bottom and side walls forming an enclosure with an opening in one of said side walls for removal of fluid containers one at a time, said top wall being openable to allow for insertion of a plurality of containers;

a thin multilayered heating pad covering one side of an internal wall of said cabinet structure;

a sensor located within a portion of said heating pad adjacent said opening in said side wall for sensing the temperature of said pad;

a thermostat controller connected to said heating pad for regulating the temperature of said pad; and

,

an on/off switch for providing power to said thermostat controller to start a preset heating cycle to warm said plurality of fluid container.

11. A fluid warming apparatus as per claim 10, wherein said thin multilayered heating pad comprises a rubber outer layer and internal metallic array of heating elements and a multilayered pressure sensitive adhesive backing.

12. A fluid warming apparatus as per claim 10, wherein said sensor is located beneath said rubber outer layer.

13. A fluid warming apparatus as per claim 10, wherein said thermostatic controller is located in a separate compartment in said cabinet structure, separating it from the heating pad assembly.

15. A fluid warming apparatus as per claim 10 wherein said cabinet structure includes a securing means for mounting the apparatus in an upright position.

16. A fluid warming apparatus as per claim 10, wherein said thermostatic controller is preset to a temperature range of 102°

-105°

F. (38°

-40°

C.).