resectoscope bipolar electrodes

Abstract

A bipolar electrode for a resectoscope, comprising two metal sleeves (12), an insulating casing (11), a twin-core conductor wire (19), a semi-ring positive electrode (13), a loop electrode (14), two ceramic insulating tubes (15) and terminals (18). The front sections of the two metal sleeves (12) are branched and arranged at a distance; and the rear sections thereof are arranged to abut to each other side by side, and the insulating casing (11) is provided at the periphery of the rear section. The front ends of the two metal sleeves (12) are fixedly connected to the two ends of the semi-ring positive electrode (13) by means of the two insulating tubes (15) respectively, and the tail ends thereof are provided with the terminal (18). One conductor wire in the twin-core conductor wire (19) is electrically connected to the metal sleeve (12), and the other conductor wire penetrates into the metal sleeve (12) and is electrically connected to the positive electrode (13) at the front end. The loop electrode (14) comprises two metal tubes which are respectively arranged at the front parts of the two metal sleeves (12) and electrically connected to the metal sleeves (12), and the exterior of the rear sections of the two metal tubes of the loop electrode (14) and the front sections of the metal sleeves (12) are wrapped in an insulating layer sleeve (31). The bipolar electrode is safe and reliable, and has an improved operation effect.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an electrode used in a resectoscope for minimally invasive surgery. Background technique [0002] Prostatic hypertrophy and hyperplasia are common diseases with a high incidence rate in middle-aged and elderly men, and surgical resection is the most effective treatment. The traditional open surgery is to make an incision in the patient's lower abdomen, and then cut the bladder to take out the prostate, which will cause great damage to the normal physiological structure of the urethra. Moreover, most of the benign prostatic hyperplasia is the elderly, they are often accompanied by other serious diseases, and it is difficult to tolerate the trauma caused by open surgery. Pay attention to. Transurethral resectoscope resection of the prostate was invented in developed countries in Europe and the United States. Since this operation does not require surgery on the human body ...

AI Technical Summary

Problems solved by technology

[0007] Although the rationality and precision of the existing bipolar electrode structure have reached a fairly high level, there are still certain defects, mainly as follows: Figure 4 As shown, during the operation, when the bipolar electrode moves back and forth relative to the endoscope 20, since the diameter of the metal mirror rod 25 of the endoscope is close to the distance between the two return electrodes 14, and the distance between the two return electrodes 14 Between, it is easy to touch, such as Figure 4 Contacts in 100

When the operation is performed, the return electrode 14 is charged, so it is prone to leakage, and there is a certain potential safety hazard

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