Linkage structure of an endoscope apparatus

Abstract

The invention discloses a linkage structure of an endoscope apparatus. The linkage structure comprises a handle part, a sheath pipe, a flow guiding pipe, a traction wire, a cutting knife and an injection needle, wherein the handle part comprises a first handle, a second handle, an injection pipe and an electrode pipe; the electrode pipe and the injection pipe are arranged in a handle side cover of the handle part; an end cap is also arranged at the front end of the handle side cover; an electrode is fixed to the end cap; the electrode pipe and/or the traction wire penetrates through the end cap; an electrode is in contact conductance with the electrode pipe and/or the traction wire through an electric brush; the flow guiding pipe penetrates through the handle and is fixedly connected with an injection handle; the injection handle moves backwards and forwards to drive the flow guiding pipe to move backwards and forwards; the electrode is fixed on the end cap at the front end of the handle part; besides, an injection opening of the injection pipe is formed in the rear end of the handle part; a driven piece does not have load brought by other connection, so that when the apparatus is used, the grasping part can be sufficiently avoided, the interference to an operator is reduced, the movement load of the apparatus mechanisms is reduced, and the difficulty of realizing the technology is reduced.

Description

technical field [0001] The invention relates to a multifunctional linkage structure for endoscopic instruments, more specifically, it relates to a linkage structure for endoscopic instruments. Background technique [0002] In recent years, with the development of endoscopic technology, endoscopic tissue biopsy, endoscopic mucosal resection, and endoscopic mucosal dissection have been widely used. The discovery, diagnosis and treatment of the disease have played a key role. At present, the commonly used devices on the market are mainly single-function high-frequency electric cutting devices, single-function electrocoagulation devices, and single-function endoscopic injection devices; a small number of manufacturers provide devices that combine electric cutting and electrocoagulation, and very few The device provided by the manufacturer integrates the functions of electric resection and injection. However, the latter often adopts the method of separately controlling the movi...

AI Technical Summary

Problems solved by technology

Its focus is on the special design of the multi-functional opening at the far end of the device. In addition, its electrodes and injection ports are located on the moving parts, which will lead to difficulties in product realization due to excessive push / pull resistance, and the operator may be affected by the interface connection. The interference of components affects the surgical action or has to interrupt the normal surgical action to adjust the posture

In addition, the connection of a single gear and a single belt in this design makes it difficult to cooperate when the strokes required by different functions are different.

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