A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/32 (2006.01) A61B 18/02 (2006.01) A61F 7/00 (2006.01) A61B 17/00 (2006.01)
Patent
CA 2252988
Cryosurgery method and device for performing traps myocardial revascularization are provided. The method includes: forming trans myocardial channels by cryoablating selected portions of the myocardial tissue. The cryosurgery device includes:(a) an operating member having an operating surface and a hollow; and a housing member connected thereto; (b) a first passageway extending along the device for providing high pressure gas to the operating member, the first passageway including a primary Joule Thomson heat exchanger in the form of a primary orifice located on the first passageway for enabling expansion of gas within the hollow of the operating member, thereby providing a desired temperature to the surface of the operating member; (c) a second passageway extending through the length of the housing member for evacuating gas from the operating tip to atmosphere; (d) a third passageway extending along a portion of the device and including a secondary Joule Thomson heat exchanger for providing a desired temperature to gas flowing through the first passageway. Method and device according to the present invention enable to form durable transmyocardial channels without causing considerable trauma to the myocardial tissue.
Ammar Rony
Bliweis Mordechai
Ofer Glinka
Sturlesi Gideon Even
Galil Medical Ltd
Robic
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