Container for microwave treatment of surgical instrument with arcing prevention

• US 5,607,612 A
• Filed: 10/07/1994
• Issued: 03/04/1997
• Est. Priority Date: 10/07/1994
• Status: Expired due to Term

• Current Assignee: Quiclave LLC
• Original Assignee: Quiclave LLC
• Inventors: Schiffmann, Robert F., Held, Jeffery S.
• Primary Examiner(s): Leung, Philip H.
• Application Number:
  US08/319,944
• Time in Patent Office: 879 Days
• Field of Search: 219/759, 219/762, 219/736, 219/728, 219/730, 219/710, 219/720, 422/21, 422/25
• US Class Current: 219/759
• CPC Class Codes: A61L 2/12 Microwaves
• CPC Class Codes: A61L 2/26 Accessories or devices or components used for biocidal treatment
• CPC Class Codes: H05B 6/6494 for cooking

Abstract

The present invention concerns a container for preventing arcing of a metal object placed therein and subjected to microwave radiation. The surgical instrument container has a first surface having an exterior surface and a support surface and a second surface attached to the bottom having an exterior surface and an inner surface facing the first surface. The support surface and the inner surface define a volume of space into which the surgical instrument is placed therein. The inner surface has a microwave-to-heat transducer that absorbs microwave radiation impinging on the exterior surface of the second surface and converts the absorbed microwave radiation to radiant energy. The microwave-to-heat transducer also prevents substantially all of the microwave radiation impinging on the exterior surface of the second surface from entering the volume of space.

Claims

1. A container for preventing arcing of a metal object placed therein and subjected to microwave radiation, said container comprising:

a first surface having an exterior surface and a support surface;

a second surface having an exterior surface and an inner surface facing said first surface, said second surface attached to said first surface wherein said support surface and said inner surface defining a volume of space into which said metal object is placed;

said inner surface comprises a microwave-to-heat transducer that comprises a first susceptor material and a microwave absorbing material positioned between said first susceptor material and said volume of space, wherein said microwave-to-heat transducer absorbs microwave radiation impinging on said exterior surface of said second surface and converts said absorbed microwave radiation to radiant energy, said microwave-to-heat transducer also prevents substantially all of said microwave radiation impinging on said exterior surface of said second surface from entering said volume of space.

2. The container of claim 1, said support surface comprises a microwave-to-heat transducer that absorbs microwave radiation impinging on said exterior surface of said first surface and converts said absorbed microwave radiation to radiant energy, said microwave-to-heat transducer also prevents substantially all of said microwave radiation impinging on said exterior surface of said first surface from entering said volume of space.

3. The container of claim 1, wherein said microwave absorbing material comprises a second susceptor material positioned between said first susceptor material and said volume of space.

4. The container of claim 1, comprising a bonding material to attach said first susceptor material to said second susceptor material.

5. The container of claim 1, wherein said microwave absorbing material comprises a magnetic material positioned between said first susceptor material and said volume of space.

6. The container of claim 5, wherein said magnetic material comprises iron oxide.

7. The container of claim 5, wherein said magnetic material comprises a ferrite.

8. The container of claim 1, wherein said exterior surface of said first surface comprises plastic.

9. The container of claim 1, wherein said exterior surface of said second surface comprises plastic.

10. The container of claim 1, wherein said first susceptor material absorbs a portion of said microwave radiation impinging on said exterior surface of said second surface and converts said absorbed microwave radiation to radiant energy, said first susceptor material transmits attenuated microwaves therethrough.

11. The container of claim 10, wherein said microwave absorbing material comprises a second susceptor material positioned between said first susceptor material and said volume of space, wherein said second susceptor material absorbs substantially all of said attenuated microwaves transmitted through said first susceptor material.

12. The container of claim 10, wherein said microwave absorbing material comprises a magnetic material positioned between said first susceptor material and said volume of space, wherein said magnetic material absorbs substantially all of said attenuated microwaves transmitted through said first susceptor material.

13. The container of claim 12, wherein said magnetic material comprises iron oxide.

14. The container of claim 12, wherein said magnetic material comprises a ferrite.

15. The container of claim 1, comprising an opening to said volume of space.

16. The container of claim 15, comprising a sealer to hermetically close said volume of space.

17. The container of claim 16, wherein said sealer comprises an adhesive.

18. The container of claim 1, comprising a tray placed upon said support surface.

19. The container of claim 18, wherein said tray comprises one or more compartments for receiving an instrument.

20. The container of claim 1, comprising a temperature sensitive label placed on said container.

21. The container of claim 20, wherein said temperature sensitive label changes color upon attainment of a predetermined temperature within said volume of space.

22. The container of claim 20, wherein said temperature sensitive label reveals indicia upon attainment of a predetermined temperature within said volume of space.

23. A surgical instrument bag for preventing arcing of a metallic surgical instrument placed therein and subjected to microwave radiation, said bag comprising:

a continuous surface having an inner surface defining a volume of space into which said surgical instrument is placed therein;

said inner surface comprises a microwave-to-heat transducer that comprises a first susceptor and a microwave absorbing material, wherein said microwave-to-heat transducer absorbs microwave radiation impinging on said continuous surface and converts said absorbed microwave radiation to radiant energy, said microwave-to-heat transducer also prevents substantially all of said microwave radiation impinging on said continuous surface from entering said volume of space.

24. The bag of claim 23, wherein said microwave absorbing material comprises a second susceptor.

25. The bag of claim 23, wherein said microwave absorbing material comprises a ferrite.

26. The bag of claim 25, wherein said ferrite comprises iron oxide.

27. The bag of claim 23, wherein said continuous surface comprises plastic.

28. The bag of claim 27, wherein said plastic allows viewing said surgical instruments contained within said volume of space.

29. The container of claim 23, comprising a tray placed upon said support surface.

30. The container of claim 29, wherein said tray comprises one or more compartments for receiving an instrument.

31. The container of claim 23, comprising a temperature sensitive label placed on said container.

32. The container of claim 31, wherein said temperature sensitive label changes color upon attainment of a predetermined temperature within said volume of space.

33. The container of claim 31, wherein said temperature sensitive label reveals indicia upon attainment of a predetermined temperature within said volume of space.

34. A surgical instrument cassette for preventing arcing of a metallic surgical instrument placed therein and subjected to microwave radiation, said cassette comprising:

a first surface;

a second surface attached to said first surface by a hinge, wherein said second surface pivots about said hinge from an open position to a closed position so that said first and second surfaces enclose a volume of space that contains said metallic surgical instrument;

said second surface comprises a microwave-to-heat transducer that comprises a first susceptor and a microwave absorbing material positioned between said first susceptor and said volume of space, wherein said microwave-to-heat transducer absorbs microwave radiation impinging on said second surface and converts said absorbed microwave radiation to radiant energy, said microwave-to-heat transducer also prevents substantially all of said microwave radiation impinging on said second surface from entering said volume of space.

35. The cassette of claim 34, said first surface comprises a microwave-to-heat transducer that absorbs microwave radiation impinging on said first surface and converts said absorbed microwave radiation to radiant energy, said microwave-to-heat transducer also prevents substantially all of said microwave radiation impinging on said first surface from entering said volume of space.

36. The cassette of claim 34, comprising a tray placed upon said first surface and within said volume of space.

37. The cassette of claim 36, wherein said tray comprises one or more compartments for receiving an instrument.

38. The cassette of claim 34, comprising a temperature sensitive label placed on said cassette.

39. The cassette of claim 38, wherein said temperature sensitive label changes color upon attainment of a predetermined temperature within said volume of space.

40. The cassette of claim 38, wherein said temperature sensitive label reveals indicia upon attainment of a predetermined temperature within said volume of space.

41. The cassette of claim 34, wherein said microwave absorbing material comprises a second susceptor.

42. The cassette of claim 34, wherein said microwave absorbing material comprises a ferrite.

43. The cassette of claim 42, wherein said ferrite material comprises iron oxide.