An ultrasonic scalpel device for bone surgery

Abstract

The invention relates to an ultrasonic cutter device used for bone operations. The ultrasonic cutter device comprises a control unit, a longitudinal ultrasonic actuator, a transverse ultrasonic actuator, an ultrasonic transducer and a cutter. The cutter is connected with the ultrasonic transducer, the longitudinal ultrasonic actuator and the transverse ultrasonic actuator drive the ultrasonic transducer to conduct longitudinal compound vibration and transverse compound vibration under the control of the control unit and transfer generated ultrasonic wave energy to the cutter. According to the ultrasonic cutter device, by using the longitudinal compound vibration and the transverse compound vibration of the ultrasonic transducer, the bone cutting efficiency of the ultrasonic bone cutter is improved; the longitudinal compound vibration and the transverse compound vibration of the ultrasonic transducer are achieved through driving of the corresponding actuators respectively, the structure of the part, held by the hand of an operator, of an instrument is simplified, the size is reduced, and the reliability is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of bone cutting in surgical operations, and in particular relates to an ultrasonic scalpel device for bone surgery. Background technique [0002] Many bone cutting operations require the use of precision cutting instruments, such as traditional bone electric saws, electric drills, and pneumatic saws and drills, which use electricity or compressed gas as power for bone cutting respectively. When cutting with this instrument, the cutter head generally rotates or swings at a high speed, which is difficult for the operator to operate and may cause accidental injury to the patient. [0003] Patent US4188952 and patent ZL200410070138.5 disclose two devices for cutting human bones using power ultrasonic technology. The device disclosed in the patent US4188952 can only cut bones, and the efficiency of removing large bones is obviously reduced. The device disclosed in patent ZL200410070138.5 utilizes the rotation o...

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Problems solved by technology

The device disclosed in patent ZL200410070138.5 utilizes the rotation of the motor to drive the ultrasonic vibration system to realize composite ultrasonic vibration. Although the efficiency of removing large pieces of bone has been improved, the structure of the motor rotation and control device is complicated, which increases the volume and weight of the instrument held by the operator. Make it prone to fatigue and misoperation during surgery, and damage the normal tissue of the patient

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