Serpentine surgical instrument

Abstract

The present invention relates to a serpentine surgical instrument comprising a handheld end including a holding structure, a wrist structure, and a manipulation structure; a replaceable instrument detachably connected to the holding structure; and a sterile bag being operable to sleeve the outer surface of the holding structure and to be removed from the holding structure, and including a wrist-end loop, a sterile bag body and an instrument-end loop which are successively connected and communicated, wherein when the sterile bag is placed on the outer surface of the holding structure, the wrist-end loop of the sterile bag seals a joint between the manipulation structure and the wrist structure, and the instrument-end loop seals a joint between the replaceable instrument and the handheld end. The sterile bag sleeving the holding structure can seal the joint between the wrist structure and the manipulation structure and the joint between the replaceable instrument and the handheld end such that the handheld end can be sterilized during an operation to prevent post-operative sterilization and to avoid damage to internal components in the handheld end.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a serpentine surgical instrument. Background technique [0002] In the process of minimally invasive surgery, in order to achieve small wounds, achieve better therapeutic effects, and reduce damage to other tissues during the operation, surgical instruments with snake-shaped joints and endoscopes with snake-shaped joints are often used to Realize the avoidance of other organs during the operation. However, because the movement direction of the end of the traditional serpentine surgical instrument is opposite to the operation direction of the operation end, it increases the difficulty of the doctor's operation and increases the risk of surgery. [0003] The surgeon operates the hand-held end of the snake-shaped surgical instrument for surgery. In order to keep the operating area adjacent to the patient sterile, the reusable snake-shaped surgical instrument needs to be...

AI Technical Summary

Problems solved by technology

[0003] The surgeon operates the hand-held end of the snake-shaped surgical instrument for surgery. In order to keep the operating area adjacent to the patient sterile, the reusable snake-shaped surgical instrument needs to be cleaned and disinfected after the operation, but the drive of the electric-driven surgical instrument Devices, sensing devices, electrical connections, etc. usually cannot be sterilized using conventional methods, such as steam, heat, pressure or chemicals, etc. may cause damage to internal components

[0004] In addition, multiple serpentine surgical instruments with the same / different end effectors need to be prepared during the operation, which wastes resources and increases the burden on patients

However, most of the traditional replaceable serpentine surgical instruments are complex in design and expensive

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