Multifunctional high-frequency cutter

Abstract

The invention discloses a multifunctional high-frequency cutter. The multifunctional high-frequency cutter comprises a head end assembly and a handle assembly, wherein the rear end of an outer sheathtube on the head end assembly is connected with a first handle; a spring tube is arranged in the outer sheath tube in a penetrating manner; an injection tube is arranged in the spring tube in a penetrating manner; the injection tube is fixedly connected with a second handle; the second handle moves back and forth and drives the injection tube to move back and forth; a conductive seat is arranged at the front part of the outer sheath tube in a penetrating manner, the front end of the spring tube is fixedly connected with the conductive seat, and the rear end of the spring tube is connected witha connector on an electrode seat; an O-shaped knife is further arranged at the front part of the outer sheath tube in a penetrating manner, and the O-shaped knife is provided with an inner cavity andcommunicates with the injection tube; and the injection tube moves back and forth and drives the O-shaped knife to stretch out of and retract into the front end of the outer sheath tube. The high-frequency cutter integrates the functions of cutting, marking, electrocoagulation and liquid spraying, so that a doctor can carry out corresponding operation according to needs, the time for replacing instruments is saved, and the operation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, and more particularly, to a multifunctional high-frequency cutter. Background technique [0002] With the extensive development of endoscopic therapy, traditional surgical operations in some fields are increasingly being replaced by endoscopic surgery. Endoscopic surgery has obvious advantages such as less trauma and fewer complications, such as endoscopic tissue biopsy. , Endoscopic mucosal resection (Endoscopic mucosal resection, EMR), Endoscopic submucosal dissection (Endoscopic submucosaldissection, ESD) and other common surgical procedures have also passed the test of time and have been widely used. As an essential surgical instrument, high-frequency electrocautery is used to strip the mucosa and achieve en bloc resection of the diseased tissue. [0003] The high-frequency electrosurgical knives on the market usually do not have a water injection function, and the mucus secreted...

AI Technical Summary

Problems solved by technology

The Chinese patent application publication No. CN109394335A discloses a high-frequency composite electric knife, which is a cutting and liquid spraying two-in-one device. It uses a sliding handle to conduct electricity and drive a push-pull knife rod through a steel rope to realize cutting and marking. Or the knife shaft will always be exposed, which poses a risk to the operation

[0005] The Chinese patent with the authorized publication number CN209107567U discloses a multi-functional high-frequency electrocution knife, which is a three-in-one instrument for electrocoagulation, injection and cutting. Among them, the electrocoagulation function adopts the clamping structure of the pliers cup, and its operation is cumbersome. The structure is more complex and the manufacturing cost is high

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