Surgery – Instruments – Cyrogenic application
Reexamination Certificate
2010-07-29
2011-12-20
Peffley, Michael (Department: 3739)
Surgery
Instruments
Cyrogenic application
C606S024000
Reexamination Certificate
active
08080005
ABSTRACT:
A system for selectively cooling and warming a cryosurgical instrument using a dual phase cryogen, including: two sources of the cryogen, a first source storing liquid phase cryogen and having a first source heater therein that selectively converts at least some of the liquid phase cryogen into gaseous phase cryogen and a second source storing the gaseous phase cryogen; a cryogen delivery control section selectively delivering cryogen to the tip; a cryogen return path from the tip to the first and second sources; a cryogen return control section that includes a pump that pumps the returning cryogen to the second source; and a pressure control section including a first pressure sensor that senses a pressure in the first source, a second pressure sensor that senses a pressure in the second source, and a pressure regulator that regulates the pressure of the first source based on information from the pressure sensors.
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Berzak Nir
Lavochkin Nadav
Sharon Simon
Giuliani Thomas
IceCure Medical Ltd.
Peffley Michael
The Law Office of Michael E. Kondoudis
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