Method for using cryogenic agents for treating skin lesions
OwnerRonald A. McDowinventor
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Abstract
A method for cryogenically treating skin lesions employing a device for applying cryogenic refrigerant in a liquid pool contacting the area of the skin lesion at a temperature and for a time such that permanent, irreversible rupture of the cellular membrane of the skin cells occurs, wherein the device employs a synthetic plastic foam applicator at the distal end of a tube which may be connected to an aerosol or pressurized container containing the cryogenic refrigerant.
Claims20
A method of cryogenically treating a lesion on the surface of skin comprising the steps of:
- (a) releasing at least an effective amount of a cryogenic agent from an aerosol or pressurized container in a manner such that the cryogenic agent accumulates into a synthetic plastic foam applicator,
- (b) contacting the skin surface of a lesion with the synthetic plastic foam applicator having the accumulated cryogenic agent for a period of time sufficient to permit the cryogenic agent to reduce the temperature of the skin lesion tissue to a temperature to freeze the skin tissue such that permanent, irreversible rupture of cellular membranes of cells of the skin lesion occurs while the cryogenic agent is evaporating,
- (c) subsequently removing the synthetic plastic foam applicator from the skin surface after liquid cryogenic agent has evaporated, and
- (d) thereafter permitting the frozen skin tissue of the skin lesion to slowly thaw.
A method of cryogenically treating a lesion on the surface of skin comprising the steps of:
- (a) releasing at least an effective amount of a cryogenic agent from an aerosol or pressurized container into a hollow supply tube attached at one end to said container so that said cryogenic agent accumulates into a synthetic plastic foam applicator located at a distal end of said supply tube,
- (b) contacting the skin surface of a lesion with the synthetic plastic foam applicator having the accumulated cryogenic agent for a period of time sufficient to permit the cryogenic agent to reduce the temperature of the skin lesion tissue to a temperature to freeze the skin tissue such that permanent, irreversible rupture of cellular membranes of cells of the skin lesion occurs while the cryogenic agent is evaporating,
- (c) subsequently removing the synthetic plastic foam applicator from the skin surface after liquid cryogenic agent has evaporated, and
- (d) thereafter permitting the frozen skin tissue of the skin lesion to slowly thaw.
Dependencies are inferred from the claim text.