Cryosurgical instrument reservoir

摘要: A cryosurgical instrument employing a standard, doublewalled, metal vacuum bottle or dewer has collar metallurgically bonded to the top of near mouth thereof provide machined threads for releasably engaging delivery and control portion reservoir instrument. The provides additional strength support where two walls are joined each other. vent is provided in bottom cap dewer. valve directly cryogen line connected by stem fulcrumed operating handle (the subject division thereof); 360° fulcrum used, permit rotating thumb finger operation with either right left hand, as desired; rotation also rotates so assist freeing it from crystalline adhesion which may result moisture ambient air. In one embodiment, cam surface can be positioned wherever desired cause locked into on position, regardless its position rotation. adjustable relationship between motion valve.