Distraction device for minimally invasive surgery

Abstract

The invention relates to the technical field of medical instruments, in particular to a distraction device for minimally invasive surgery. The distraction device for the minimally invasive surgery comprises a first rack, a first-direction distraction mechanism and second-direction distraction mechanisms, wherein the first-direction distraction mechanism is vertically installed on the first rack and can move or be locked on the first rack in the first direction perpendicular to the arrangement direction of the first rack; the second direction mechanisms are vertically mounted on the first rackand can move or be locked on the first rack along a second direction parallel to the arrangement direction of the first rack; and two second-direction distraction mechanisms are symmetrically arrangedalong the first-direction distraction mechanism. According to the distraction device for the minimally invasive surgery, the first-direction distraction mechanism and the second-direction distractionmechanisms are convenient to adjust, the adjusting process is stable, the distraction effect on a minimally invasive incision is good, only a local structure can be replaced after local damage, and materials are saved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a distraction device for minimally invasive surgery. Background technique [0002] In the technical field of minimally invasive spinal surgery, minimally invasive spinal surgery has the advantages of small incision, less trauma, and quick recovery, which is the development trend of spinal surgery; For intervertebral disc decompression surgery, only a small channel is needed to open the surgical field of view and perform surgical operations. [0003] Due to the small surgical incision, minimally invasive surgery will have many difficulties in its implementation, such as: limited field of view, limited light source, limited operable space, etc. In order to carry out minimally invasive surgery more smoothly, the current spinal minimally invasive hand mainly establishes a channel by opening the mechanism, expands and improves the surgical field of view at the bottom of t...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a distraction device for minimally invasive surgery, which overcomes the inconvenient adjustment of the position of the distraction mechanism in the aforementioned prior art, the lack of stability in the adjustment process of the distraction mechanism, and the distraction effect on the incision. Inadequate, unreasonable setting of the structure of the spreading mechanism, when the partial damage of the spreading mechanism needs to be replaced as a whole, etc.

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