Electric surgical instrument

Abstract

The invention relates to an electric surgical instrument. The electric surgical instrument comprises a cutting suture part and a handheld part, wherein the handheld part comprises a switching assembly; the switching assembly is engaged with a driving assembly to obtain power input; the switching assembly comprises a shaft, a first gear and an output switching part; the output switching part comprises a second motor, a transmission rod and an engagement piece; the output switching part is coupled to a first gear; the switching assembly is engaged with the driving gear through the driving assembly; the switching engagement piece enables the switching assembly in a first output mode or a second output mode. The electric surgical instrument can realize closure, percussion and reset of a nail bin assembly through a high-power first motor. The structure complexity of the electric surgical instrument is reduced and the cost is saved. Meanwhile, switching of the output mode is realized througha low-power second motor, an initial driving state can be set, and an insurance structure for preventing mis-percussion is formed.

Description

technical field [0001] The invention relates to a medical surgical instrument, in particular to an electric surgical instrument. The electric surgical instrument has an annular staple cartridge and an annular nail abutment seat, and can be an electric tubular stapler or an electric anorectal stapler. Background technique [0002] In surgery, staplers are usually used to resect tissues and seal wounds. Staplers include linear cutting staplers, tubular staplers, endoscopic linear cutting staplers, etc. These staplers can be used to resect diseased tissues of the lung, intestine, and stomach while sealing the wound. During the operation, the end effector of the stapler clamps and squeezes the tissue, then cuts the tissue with a cutting knife, and quickly sutures the wound with staples. The use of the stapler shortens the operation time, improves the success rate of the operation, and recovers quickly after the operation. [0003] The currently used stapler mainly has two ki...

AI Technical Summary

Problems solved by technology

During the entire firing process, the hand provides support and pressing forces, and it is easy to cause the shake of the stapler caused by the shaking of the hand

For the anorectal stapler and tubular stapler, although the firing process is completed by pressing the handle once, there is still the problem of uneven force applied during the entire firing process when the handle is pressed with the grip force of the human hand

Insufficient stable and uneven manual firing force will affect the final staple forming effect, resulting in defects in the staple forming, and the cutting wound surface of the cutting knife is not smooth

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