Surgery – Instruments – Cyrogenic application
Patent
1996-06-24
2000-03-21
Dvorak, Linda C. M.
Surgery
Instruments
Cyrogenic application
606 21, 606 22, A61B 1736
Patent
active
060397306
ABSTRACT:
The present invention pertains to an apparatus for cryosurgery. The apparatus comprises a cryoneedle having a diameter less than 3.2 mm. The apparatus is also comprised of a thermal insulation shell disposed about a portion of the cryoneedle for reduction of heat transfer from surrounding tissues or freezing prevention of surrounding tissues during application of the cryoneedle with the shell. The cryoneedle and shell are configured for insertion into a body of a patient. The present invention pertains to a method for freezing tissues. The method comprises the steps of bringing into contact a cryoneedle having a diameter of less than 3.2 mm with a patient's body. Next, there is the step of flowing the cryofluid through the cryoneedle.
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Julian Thomas Benjamin
Rabin Yoed
Wolmark Norman
Allegheny-Singer Research Institute
Dvorak Linda C. M.
Kearney Rosiland
Schwartz Ansel M.
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