Claims
- 1. A covering for treating tissue, the covering comprising:a flexible attachment having an upper surface and a lower surface and an opening for facing tissue to be treated; a layer spanning the upper surface, over the opening; an attachment portion proximate the lower surface; and a heater supported by the layer, over the opening, for maintaining a temperature in a range from 38° C. to 46° C.
- 2. The covering of claim 1, wherein the opening extends from the lower surface to the upper surface.
- 3. The covering of claim 1, in which the heater is an active heater.
- 4. The covering of claim 1, in which the heater is selected from the group containing warm water pads, chemical heating pads, and phase-change salt pads.
- 5. The covering of claim 1, further including a controller connected to the heater for causing the heater to maintain the temperature in the range.
- 6. The covering of claim 5, in which the heater is an active heater.
- 7. The covering of claim 6, which the heater is an electrical heater.
- 8. The covering of claim 1, further including means on the layer for receiving the heater.
- 9. The covering of claim 1, in which the attachment portion is a ring.
- 10. The covering of claim 9, in which the ring is a sealing ring.
- 11. The covering of claim 10, in which the sealing ring is made of a polymeric foam material.
- 12. The covering of claim 1, in which the layer is a polymeric film material.
- 13. The covering of claim 12, in which the polymeric film material is a material selected from the group containing cellulose, cellulose acetate, polyethylene, polyvinyl chloride, polyurethane, and polypropylene.
- 14. The covering of claim 1, in which the layer is gas permeable.
- 15. The covering of claim 1, further including a pocket for retaining the heater at the layer.
CROSS REFERENCES TO RELATED CO-PENDING APPLICATIONS
This application is a continuation of U.S. patent application Ser. No. 09/491,921, filed on Jan. 27, 2000, now U.S. Pat. No. 6,241,698, which issued on Jun. 5, 2000 which is a continuation of U.S. patent application Ser. No. 09/272,028, filed on Mar. 18, 1999, now U.S. Pat. No. 6,071,254 which issued on Jun. 6, 2000, which is a continuation of U.S. patent application Ser. No. 08/786,714, filed on Jan. 21, 1997, now U.S. Pat. No. 5,954,680 which issued on Sep. 21, 1999, which is a continuation-in-part application of U.S. patent application Ser. No. 08/356,325, filed Feb. 21, 1995, now abandoned, which is a 35 U.S.C. § 371 application of PCT international application Ser. No. PCT/US93/05876, filed Jun. 18, 1993, which is a continuation-in-part of, and claims priority from, U.S. patent application Ser. No. 07/900,656, filed Jun. 19, 1992, now abandoned.
This application is related to U.S. patent application Ser. No. 08/785,794, filed Jan. 21, 1997, now U.S. Pat. No. 5,986,163 which issued Nov. 16, 1999 titled NORMOTHERMIC HEATER WOUND COVERING and U.S. patent application Ser. No. 08/786,713, filed Jan. 21, 1997 now U.S. Pat. No. 5,964,723 which issued Oct. 12, 1999, titled NORMOTHERMIC TISSUE HEATING WOUND COVERING.
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Continuations (2)
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09/491921 |
Jan 2000 |
US |
Child |
09/771792 |
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Parent |
09/272028 |
Mar 1999 |
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09/491921 |
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US |
Continuation in Parts (2)
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08/356325 |
Feb 1995 |
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08/786714 |
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07/900656 |
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08/356325 |
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US |