Bone crushing device for spinal fusion surgery

Abstract

The invention belongs to the technical field of spinal fusion, in particular to a bone crushing device for spinal fusion surgery, and provides the following scheme that the bone crushing device comprises a base, supporting plates are fixedly connected to the two ends of the outer wall of the top of the base, and the outer walls of the opposite sides of the two supporting plates are fixedly connected with the same bone crushing box; the outer walls of the tops of the two supporting plates are fixedly connected with the same top frame, and the outer wall of the bottom of the top frame is fixedly connected with two second air cylinders. According to the bone crushing device, the collecting assembly is arranged, after bone crushing operation is finished, bone is retreated through the retreatment assembly, then the bone is guided to the position above the collecting frame through a net rack and a flow guide plate, in the descending process, the bone is in contact with a contact buffer rod arranged in the collecting frame, and the descending height of crushed bone is shortened; therefore, the gravitational potential energy of descending is reduced, it is ensured that after falling into the collecting frame, the garbage is not damaged due to collision and collected through the collecting assembly, and convenience and high efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of spinal fusion, in particular to a bone crushing device for spinal fusion operations. Background technique [0002] The development of spinal fusion has a history of nearly a hundred years. Only a small number of intervertebral disc herniation or spinal canal stenosis without dysfunction caused by spondylolisthesis is reserved for fusion; The fusion surgery used for dysfunction caused by spondylolisthesis degeneration of the spine is to make the original spinal movable segments no longer moveable and grow into a whole. It is usually applied when the stability of the spine is damaged or when correction is required, and it needs to be combined with internal fixation. [0003] In the existing spinal fusion surgery, the bone needs to be crushed by the bone crushing device. The normal crushing device is to place the bone in the crushing blade for crushing operation. Thoroughly, however, there are relatively s...

AI Technical Summary

Problems solved by technology

[0003] In the existing spinal fusion surgery, the bone needs to be crushed by the bone crushing device. The normal crushing device is to place the bone in the crushing blade for crushing operation. Thoroughly, however, there are relatively strict standards for the size of the bone fragments used in the existing spinal fusion process. The existing bone fragmentation device processed too many fragments of bone that could not be directly used for spinal fusion operations, resulting in fragmentation of this part. The bone is discarded, resulting in the loss of bone crushing, reducing the use value of the bone crushing device

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