Abstract: Cryosurgery may be performed by a microinvasive technique employing a novel cryosurgical probe. It is very thin, very long, and highly flexible. These characteristics are achieved by a construction consisting of a tube within a tube with no intermediate supporting elements therebetween. The probe is capable of being passed through a blood vessel and into the heart without external guidance other than the blood vessel itself.
Type:
Grant
Filed:
November 14, 1988
Date of Patent:
April 28, 1992
Assignee:
Frigitronics, Inc.
Inventors:
Clifford E. Potocky, Ronald M. Callanan, Raymond L. Goudreau
Abstract: A medical dressing is provided which is adapted to perform as a synthetic skin for the therapy and protection of skin wounds such as burns, donor sites for skin grafting, ulcers, and the like. In a preferred embodiment, the medical dressing is transparent, thin and flexible, elastomeric and conformable. The preferred medical dressing comprises a laminate of a thin layer of non-porous segmented polyurethane cohesively secured to a thin layer of thrombogenic reticulated foam.