Ultrasonic knife self-adaptive control method and system for finishing tissue shearing

Abstract

The invention discloses an ultrasonic knife self-adaptive control method and system for finishing tissue shearing. The ultrasonic knife self-adaptive control method comprises the steps that real-time working frequency value data of an ultrasonic knife is obtained to form a frequency change curve; function operation is carried out according to the obtained frequency value data to obtain a frequency change characteristic value; according to the frequency change characteristic value, the process of each stage of the ultrasonic knife is judged; and it is judged that the ultrasonic knife reaches a tissue shearing end point, and the control current of the ultrasonic knife is reduced at the time point and a shearing end prompt is generated. The ultrasonic knife self-adaptive control method has the beneficial effects that the tissue shearing end point is automatically judged according to the remarkable characteristics of the frequency, when the tissue shearing end point is reached, a doctor is reminded to end shearing, so that the operation pressure of the doctor is reduced, the control current of the ultrasonic knife is reduced, the knife is protected while the optimal operation effect is achieved, the knife abrasion is reduced, and the service life of the knife is prolonged.

Description

technical field [0001] The present invention relates to the field of medical devices, in particular to a control method and system for an ultrasonic scalpel, especially for an adaptive control method and system when the ultrasonic scalpel ends tissue shearing. Background technique [0002] Ultrasonic scalpel (abbreviated as ultrasonic scalpel) refers to further amplifying the ultrasonic vibration obtained through the piezoelectric converter (the electrical energy is transferred to the piezoelectric converter through the energy generator, and the electrical energy is converted into ultrasonic mechanical energy by the piezoelectric converter), And the amplified ultrasonic vibration is used by the head of the scalpel to cut and coagulate the soft tissue. Clinical use of this device enables lesion resection at lower temperatures and less bleeding, and ensures minimal lateral thermal damage to tissue. With the popularity of minimally invasive surgery, ultrasonic scalpel has beco...

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Problems solved by technology

In the process of using the ultrasonic scalpel in the prior art, the doctor simply relies on the observation of the doctor to judge whether the ultrasonic scalpel has finished cutting the tissue, which will cause a large error: if the cutting ends early, the operation will fail, and if the cutting is delayed, the jaws will not stop Worn pads reduce the life of the ultrasonic knife

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