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A balloon electrode catheter for cavity tissue ablation

An electrode catheter and tissue ablation technology, which is applied in the parts of surgical instruments, medical science, surgery, etc., to achieve the effect of small side effects, compact and compact catheter structure design, and good prognosis

Active Publication Date: 2021-06-25
THE FIRST AFFILIATED HOSPITAL OF MEDICAL COLLEGE OF XIAN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is a lack of a safe and effective radical treatment technology for malignant tumors under ERCP conditions.

Method used

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  • A balloon electrode catheter for cavity tissue ablation
  • A balloon electrode catheter for cavity tissue ablation
  • A balloon electrode catheter for cavity tissue ablation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0051] First, determine the relative positions of the two balloons and the claw cage according to the differences in individual lesions obtained after the examination, and then fix the electrode loops b and c and the two balloons according to the above description. The balloon end of the catheter is in the figure 1 When it is in the retracted state, it can be placed in the reserved passage of the endoscope and enter the cavity along with the endoscope. The other end of the endoscope has a handle for human operation. There are two options for gas injection and liquid injection at the handle end . The endoscope operator probes the endoscope into the cavity and stops when it is about to reach the tumor. At this time, continue to push the handle of the catheter to make the catheter extend out of the front end of the endoscope and continue forward to reach the tumor tissue. Adjust the angle position so that the endoscope is in the position Visualize the position so that the tumor ...

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Abstract

The invention relates to a balloon electrode catheter for cavity tissue ablation. Including catheter a, catheter b arranged inside catheter a; the outer surface of catheter a is sequentially provided with electrode loop a, balloon b, electrode loop b, measuring electrode a, measuring electrode b, and electrode loop c from left to right , balloon a, electrode collar d; metal claw cage b is set between electrode collar a and electrode collar b; metal claw cage a is set between electrode collar c and electrode collar d; electrode collar b 1. The electrode collar c is fixedly connected with the catheter a; the electrode collar a and the electrode collar d can slide freely on the catheter a; the catheter b is a flexible hollow cylindrical tube, and the outer surface is provided with 4 equidistant helically wound wires; the wires are respectively Connect with electrode collar b, electrode collar c, measuring electrode a and measuring electrode b. The invention provides a balloon electrode catheter which can carry out safe and effective ablation and radical treatment for malignant tumors under the condition of ERCP.

Description

technical field [0001] The invention relates to the field of medical device equipment, and relates to a cavity discharge device embedded in an endoscope, in particular to a balloon electrode catheter for realizing non-thermal effect ablation of cavity tumors, especially malignant tumors in the bile duct. Background technique [0002] Liver, gallbladder, and pancreas tumors are the most common group of digestive system malignancies, and they are also the most aggressive and heterogeneous group of malignancies. Due to the complex anatomical relationship and important physiological functions of the liver, biliary system, and pancreas, the diagnosis and treatment of hepatobiliary and pancreatic-related diseases have always been the focus and difficulty of research. In terms of anatomical relationship, the intrahepatic capillary bile ducts gradually converge to form the left and right hepatic ducts, and then merge with the cystic duct at the hilum to form the common bile duct. Af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/12A61B18/14A61B2018/00261A61B2018/00577A61B2018/142
Inventor 吕毅胡良硕高忠权任冯刚高煦尧李青山
Owner THE FIRST AFFILIATED HOSPITAL OF MEDICAL COLLEGE OF XIAN JIAOTONG UNIV
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