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Self-adaptive high-frequency bipolar constant-current pulse source for surgical tissue electric welding anastomosis

An self-adaptive, bipolar technology, applied in the field of surgical medicine, can solve the problems of single mode, low degree of intelligence, difficult to change tissue mode and parameter adjustment, etc., to improve life and reliability, realize intelligence, Achieving an adaptive effect

Pending Publication Date: 2022-08-09
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing high-frequency electric field biological tissue welding equipment has a single mode and a low degree of intelligence. It is difficult to adapt the mode change and parameter adjustment to different tissues, which limits the application range of the equipment, and the judgment of the degree of welding is very important. Physician's clinical experience has a certain dependence
In addition, existing biological tissue welding equipment works in constant power mode or constant voltage mode, and does not use constant current mode, which is an output mode more suitable for biological tissue welding

Method used

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  • Self-adaptive high-frequency bipolar constant-current pulse source for surgical tissue electric welding anastomosis
  • Self-adaptive high-frequency bipolar constant-current pulse source for surgical tissue electric welding anastomosis
  • Self-adaptive high-frequency bipolar constant-current pulse source for surgical tissue electric welding anastomosis

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Embodiment Construction

[0032] The present invention will be further described below with reference to the specific drawings and examples.

[0033] figure 2 It is the circuit diagram of the constant current pulse generating module. It includes five switch tubes 201 , 202 , 203 , 204 and 205 , a freewheeling diode 211 , an energy storage inductor 221 , a pulse output port 231 , and a DC input port 241 . Among them, the energy storage inductor 221, the DC input port 241, and the five switch tubes 201-205 together form the charging circuit of the energy storage inductor 221; the energy storage inductor 221, the freewheeling diode 211, the sampling resistor 231, and the four switch tubes 202-205 form The full bridge structure and the output port 231 together constitute the discharge loop of the energy storage inductor 221 . Specifically, first, the system inputs the drive signal to control all five switches 201 to 205 to be turned on, and the input DC source charges the energy storage inductor 221 thr...

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Abstract

The invention belongs to the technical field of surgical medicine, and particularly relates to a self-adaptive high-frequency bipolar constant-current pulse source system suitable for an electrosurgical tissue welding anastomosis operation. The system comprises a direct current power supply module, a constant current pulse generation module, an overvoltage protection module, a feedback module, a central control module and an output module. The system can effectively perform welding, anastomosis and the like on the biological tissues on the premise of causing as little damage to the biological tissues as possible, has an adaptive control mode for different biological tissues, can judge whether welding is completed or not in the welding process, automatically decides whether to terminate the welding process or not, and improves the welding efficiency. And therefore, intelligent automatic welding is realized.

Description

technical field [0001] The invention belongs to the technical field of surgical medicine, in particular to an adaptive high-frequency bipolar constant current pulse source suitable for electrosurgical tissue welding and anastomosis. Background technique [0002] Tissue suture is an extremely important part of surgery. Traditional suturing techniques generally use silk threads, leather staples, etc. for manual suturing. However, these traditional methods generally have the disadvantages of obvious wounds, slow recovery, and susceptibility to infection, and the operation is complicated, which has high requirements for doctors' surgical skills. The existence of these disadvantages may cause some complications, with certain risks. [0003] The high-frequency electric field biological tissue welding technology mainly acts on the biological tissue through the high-frequency electric field, so that the tissue cells undergo electroporation, thereby the protein is precipitated, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12
CPCA61B18/1206A61B18/1233A61B2018/126A61B2018/00589A61B2018/00642A61B2018/00696A61B2018/0072A61B2018/00732A61B2018/00875Y02B70/10
Inventor 刘克富徐建志杨行健赵晖邱剑
Owner FUDAN UNIV