Ultrasonic surgical instrument and control method thereof

Abstract

The invention discloses an ultrasonic surgical instrument and a control method thereof. The ultrasonic surgical instrument comprises a driving handle, a waveguide rod arranged in an inner sleeve in a sleeved mode and a tool bit assembly; the far end of the driving handle is connected with the near end of the waveguide rod; the far end of the waveguide rod is connected with the near end of the tool bit assembly; the ultrasonic surgical instrument further comprises a push-pull component, a motor and a transmission component; the near end of the push-pull component is connected with the motor; the far end of the push-pull component is movably connected with the near end of the transmission component; the far end of the transmission component is connected with the near end of the inner sleeve; when the tool bit assembly conducts a closing action, the motor drives the push-pull component to execute a pushing action and drives the transmission component to pull the inner sleeve to move towards the near end; and when the tool bit assembly performs an opening action, the motor drives the push-pull component to execute a pull-back action and drives the transmission component to push the inner sleeve to move towards the far end. According to the scheme, closing of the tool bit assembly in a traditional manual mode is changed into an electric automatic closing mode of the tool bit assembly, so that the problem that an operator consumes energy when closing a tool bit is greatly relieved.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an ultrasonic surgical instrument. Background technique [0002] Ultrasonic cutting hemostatic knife is a frequently used medical device used in thoracoabdominal surgery. At the same time, it can seal small blood vessels and significantly reduce intraoperative bleeding. Its cutting accuracy is high, and eschar and smoke are rarely generated. It is safe when separating and cutting near important organs and large blood vessels, and the system does not have current passing through the body. Conductive tissue damage can occur, increasing surgical safety. [0003] Among the ultrasonic surgical instruments and ultrasonic scalpel products currently on the market, such as figure 1 As shown, it mainly includes: a host (1), a drive handle (2), a cutter head (3) and a pedal (4) components. The main engine (1) is respectively connected with the pedal (4) and one end of the driving handl...

AI Technical Summary

Problems solved by technology

However, due to the change of the operation mode, not only does the user need to change the usage habits to adapt to the new cutter head assembly, but more importantly, when the cutter head assembly is closed, the operator still needs to use force to overcome the spring force of the spring, that is, the above solution only Solve the problem that the operator does not need to hold the cutter head assembly at all times, but does not solve the problem of the operator's power consumption when the cutter head assembly is initially closed

[0008] How to design an ultrasonic surgical instrument and its control method to solve the power consumption problem when the cutter head assembly is initially closed is a technical problem that those skilled in the art urgently need to solve

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