Ultrasonic surgical scalpel

Claim 1

An ultrasonic surgical scalpel comprising: handpiece defined by a casing having a rear end and a suction regulating mouth capable of being closed directly with a finger tip; an ultrasonic vibrator contained within said handpiece, which vibrator generates ultrasonic vibrations when applied with an alternating current; a horn connected to said vibrator so as to vibrate due to the vibrations generated by the vibrator, which horn comprises a suction nozzle having a leading end and a suction passage axially extending so as to open at the leading end in a non-axial direction of the horn to form a suction mouth; a flushingpipe provided along an extension surface of said suction nozzle for supplying a solution to around said suction mouth at the leading end of said suction nozzle, said flushing pipe being detachably retained by a joint portion formed on said casing and connected with a conduit through which said solution is fed to said flushingpipe; an elastic supporting member for supporting said horn at a point substantially one-fourth wavelength of the vibrations generated by said vibrator form a connection point at which said horn and vibrator are connected toe each other; and a connection member mounted where said supporting member is disposed, said connection member having a port connected to said suction passage in said suction nozzle, a port connected to a suction pipe extending outside through said rear ed of said casing, and a port connected to said suction regulating mouth, whereby a suction force is imparted to said suction passage in said suction nozzle through said suction pipe and regulatable by opening or closing said suction regulating mouth with the finger tip so that, when said suction regulating mouth is closed with the finger tip, said suction force in said suction passage is kept normal, and when said suction regulating mouth is open, said suction force in said suction passage is reduced.