Bendable tissue removing instrument with mapping function

Abstract

The present invention relates to a medical bendable tissue removing instrument with a mapping function. The bendable tissue removing instrument comprises a bendable unit, a rotating shaft and an adjustment straight tube; the bendable unit comprises a fixed bended angle portion at a far-end portion; the fixed bended angle portion is prepared by elastic materials; the rotating shaft is installed in the bendable unit, and a far end of the rotating shaft is connected with a tissue removing head; and the adjustment straight tube sleeves the bendable unit. The bendable tissue removing instrument also comprises a protection device and a mapping device; the protection device comprises a protection cover, a protection control member and a control handle; the protection cover is arc sheet shaped; a near end of the protection cover is connected with a far end of the protection control member; the far end portion of the protection control member is flexible and has an annular structure; the control handle can be operated to enable the protection cover to axially move or rotate; the mapping device comprises a mapping electrode; and the mapping electrode is disposed on the protection cover and is connected with a mapping handle through an electrode wire. The angle of the tissue removing head can be adjusted, a side surface of the tissue removing head is provided with the protection cover, and the protection cover is provided with the mapping electrode for keeping away from tissue not required to be removed.

Description

technical field [0001] The invention relates to the technical field of spinal canal stenosis decompression instruments, in particular to a medical adjustable bending tissue removal instrument with a mapping function. Background technique [0002] As we grow older, human tissues often proliferate and degenerate, resulting in narrowing of the spinal canal or nerve root canal, resulting in compression of the cauda equina nerve or nerve root, resulting in numbness, pain, and even paralysis in severe cases. During spinal surgery, it is necessary to grind or cut the patient's hyperplastic or degenerated tissue to reduce the compression of the tissue on the nerve, thereby alleviating and eliminating its impact. [0003] In the prior art, such as the international patent application with patent publication number WO2014 / 041540A1, a power handle is used to drive the grinding head to rotate for grinding, and the working sheath on the outer layer of the drive shaft is an unadjustable f...

AI Technical Summary

Problems solved by technology

[0004] Since multiple surgical sites often need to be ground in one spinal surgery, and these sites are relatively deep, it is difficult for a fixed-shaped working sheath to go deep into multiple designated sites through a minimally invasive surgical channel; especially the shape of the grinding site is relatively complicated , it is difficult to control the grinding head to adapt to the shape for grinding

In addition, the instrument has a protective cover, but the protective cover is fixed relative to the instrument. Different operations have different requirements for the direction and presence of the protective cover, and it is difficult to adapt to different surgical situations.

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