Abstract: Disclosure is made of a cryogenic ultrasonic scalpel comprising a housing, an ultrasonic source installed in said housing, a cutting means to which ultrasonic vibrations are supplied from the ultrasonic source via a transformer, a tubular heat exchanger featuring inlet and outlet pipes for the supply and removal of the refrigerant and providing the required low-temperature action on the tissue being dissected, and thermal insulation between said cutting means and said tubular heat exchanger.

Abstract: A cryogenic-and-ultrasonic scalpel includes a body, a source of ultrasonic vibrations positioned within the body, a hollow, frusto conical transformer connected to the source of ultrasonic vibrations, and a tubular heat exchanger for supplying refrigerant to the scalpel blade and draining the same therefrom the heat exchanger including inner and outer fluidly intercommunicating coaxial tubes, with the blade and the transformer connected to the outer tube, and ultrasonic vibrations being imparted to the outer tube and then to the blade through the transformer, and with refrigerant supplied through the inner tube, out from holes in the outer tube onto the inner side of the blade, and drained through the outer tube.

Abstract: A cryogenic-and-ultrasonic scalpel comprises a body, a source of ultrasonic vibrations accommodated in the body, a transformer connected to the source of ultrasonic vibrations, and a tubular heat exchanger adapted for refrigerant to admitted to and withdrawn from the scalpel blade, the heat exchanger being accommodated in the body and made as at least two intercommunicating coaxial tubes. The blade and the vibration transferring member are connected to the outside tube, ultrasonic vibrations being imparted to the outside tube and further to the blade through the transformer.