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A kind of ultrasonic knife resonant frequency tracking automatic reset method and equipment

A resonant frequency and automatic reset technology, which is applied in medical science, surgery, diagnosis, etc., can solve the problems of large vibration damping of the cutter head, difficulty in cutting, and rise of resonant frequency, so as to achieve continuous and efficient work and avoid the effect of machine over-range work

Active Publication Date: 2020-04-07
ZHUHAI WEIERKANG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the user exerts too much vertical pressure on the jaws of the ultrasonic knife or the longitudinal pressure on the bony knife head, the vibration damping of the knife head is too large, and when the load capacity of the ultrasonic knife is exceeded, the output effect becomes poor.
During the use of the traditional ultrasonic knife with frequency tracking, if the vibration damping of the cutter head is too large, it is easy to cause the resonance frequency to rise rapidly. Once the resonance frequency exceeds the frequency range that the ultrasonic vibration system can track, the machine will alarm and stop working. It is necessary to re-sweep and lock the frequency. If this process is repeated, it will make it difficult to cut in, or the cut-in efficiency will be low.

Method used

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  • A kind of ultrasonic knife resonant frequency tracking automatic reset method and equipment
  • A kind of ultrasonic knife resonant frequency tracking automatic reset method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 2 As shown, an ultrasonic knife resonant frequency tracking and automatic reset method, the specific steps are:

[0029] S1: Sweep to obtain the initial resonance frequency of the ultrasonic knife vibration system;

[0030] S2: Monitor the working resonance frequency of the ultrasonic knife vibration system in real time, and judge whether the working resonance frequency of the ultrasonic knife vibration system is consistent with the following frequency of the ultrasonic knife driving system; when the ultrasonic knife is working, the following frequency of the ultrasonic knife driving system is always the same The working resonant frequency of the vibration system is consistent, so that the working efficiency of the ultrasonic knife can be maximized;

[0031] S3: If the working resonant frequency of the ultrasonic knife vibration system exceeds the maximum value of the following frequency of the ultrasonic knife driving system, the operator is prompted t...

Embodiment 2

[0038] The ultrasonic knife includes the driving system of the ultrasonic knife and the vibration system of the ultrasonic knife. The vibration system of the ultrasonic knife is composed of a transducer, a horn and a cutter head. The transducer and the horn are collectively called the vibrator of the ultrasonic knife. Fixed, the transducer converts the electrical energy of the power supply into mechanical energy of vibration, the horn amplifies the displacement or speed of mechanical vibration by concentrating ultrasonic energy on a small area, and the cutter head radiates sound energy; the shape of the jaw or cutter head is It is formulated according to the surgical method and surgical needs.

[0039] When the ultrasonic knife is working, an attribute of the ultrasonic knife vibration system 5 is the working resonant frequency, but this property is not a fixed value. Changes; when pressure is applied to the cutter head of the ultrasonic knife, the operating resonance frequenc...

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Abstract

Disclosed are an ultrasonic knife resonant frequency tracking automatic reset method and a device thereof. The specific steps are: obtaining an initial resonance frequency of an ultrasonic knife vibration system by means of a frequency sweep; monitoring the working resonance frequency of the ultrasonic knife vibration system in real time; if the working resonance frequency of the ultrasonic knife vibration system exceeds a maximum value of a follow frequency of an ultrasonic knife drive system, prompting an operator that the knife head damping of the ultrasonic knife is too large, re-assigning an initial resonance frequency of the ultrasonic knife drive system or a frequency near the initial resonance frequency of the ultrasonic knife vibration system; reducing the knife head damping to make the working resonance frequency return to within a frequency range of the ultrasonic knife drive system; and adjusting the voltage and current of the ultrasonic knife vibration system so that the follow frequency of the ultrasonic knife drive system is again kept consistent with the working resonance frequency of the ultrasonic knife vibration system. Further disclosed is an ultrasonic knife device, which is mainly used to prevent the ultrasonic knife device from repeatedly stopping working due to an excessive resonance frequency of the ultrasonic knife device, and to ensure the working efficiency of the ultrasonic knife device.

Description

technical field [0001] The invention relates to a frequency tracking automatic reset method and its equipment, in particular to an ultrasonic scalpel resonant frequency tracking automatic reset method and its equipment. Background technique [0002] When using the ultrasonic scalpel equipment, the force applied by the user is different, and there is a large inconsistency and uncontrollable. When the vertical pressure exerted by the user on the jaws of the ultrasonic knife or the longitudinal pressure on the bony knife head is too large, the vibration damping of the knife head is too large, and when the load capacity of the ultrasonic knife is exceeded, the output effect becomes poor. During the use of the traditional ultrasonic knife with frequency tracking, if the vibration damping of the cutter head is too large, it is easy to cause the resonance frequency to rise rapidly. Once the resonance frequency exceeds the frequency range that the ultrasonic vibration system can tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/32
CPCA61B17/320068A61B2017/00017A61B2560/0266
Inventor 胡善云丘永洪梁泳强
Owner ZHUHAI WEIERKANG BIOTECH