Control method for detection and protection of high-frequency surgical equipment

Abstract

The invention relates to a control method for detection and protection of high-frequency surgical equipment, and belongs to the technical field of medical products such as high-frequency electric knives and radio-frequency knives. The method comprising the following steps: step 1, acquiring a voltage signal Vout of a current human tissue, a current signal Iout of the current human tissue and a resistance signal dout of a current starting resistor, and acquiring a pat voltage signal through an oscillation feedback circuit; step 2, judging whether a single-pole output mode or a double-pole output mode is adopted according to whether the dout signal is in a high level or not or whether a double-pole pedal outputs or not, and if the dout signal is in the single-pole output mode, executing step 3; and if yes, executing the step 12. The safety of the negative plate can be ensured, and the timely blood coagulation requirement can be met; and the bipolar coagulation device is suitable for a pedal mode and an automatic control mode during bipolar coagulation, can output small power to coagulate when two forceps tips are short-circuited or two ends of the forceps detect low resistance values, and can cut off the output when coagulation is completed in a self-starting mode.

Description

technical field [0001] The invention relates to a control method for detection and protection of high-frequency surgical equipment, and belongs to the technical field of medical products such as high-frequency electric knife and radio-frequency knife. Background technique [0002] At present, the high-frequency electric knife on the market is divided into two types in terms of negative plate (neutral electrode) detection: [0003] (1) It can only simply detect whether the negative plate is well connected, but cannot detect whether it is well pasted and the pasting area. When the negative plate falls off to be smaller than the safe area, burns will occur at the negative plate. [0004] (2) It can detect the sticking area, but it can only detect good and no alarm, and if it is not good, it will alarm and disconnect the output. It can only detect two points. When the negative plate is pasted well, it will output normally; when the pasted area falls off to a safe area, it will ...

AI Technical Summary

Problems solved by technology

[0003] (1) It can only simply detect whether the negative plate is well connected, but cannot detect whether it is well pasted and the pasting area. When the negative plate falls off to less than the safe area, burns will occur on the negative plate

[0004] (2) It can detect the paste area, but it can only detect good and no alarm, and if it is not good, it will alarm and disconnect the output

[0007] Currently commercially available high-frequency electrosurgical units have almost no measures for bipolar protection. When bipolar devices are used, it is easy to accidentally touch the tip of the tweezers. At this time, it is equivalent to a short circuit of the device, and the current is very large, which will damage the device and the host of the device. sexual influence

[0008] When using the current electric knife on the market to carry out bipolar coagulation for blood coagulation, no matter using foot pedal control or self-starting control, when the tweezers accidentally touch a short circuit, the two ends of the tweezers will generate instantaneous high-voltage high-frequency electricity. Under the power output, a high-voltage arc will be generated at both ends of the tweezers, which is a hidden danger for doctors, nurses and patients, and may easily affect the operation.

[0009] (2) The electric knife on the market does not have bipolar automatic disconnection output function

[0010] And novice doctors are not proficient in using bipolar, and cannot accurately determine whether blood vessels are completely coagulated, so we designed a method for bipolar protection and control according to market demand

[0011] (3) The electric knife on the market will not output the corresponding low power according to the low impedance value, but will only output according to the current set power, which will cause unnecessary harm to the patient

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