A special composite bone crusher for spinal surgery

Abstract

The invention relates to the technical field of medical instruments, and discloses a special composite bone crusher for spinal surgery, which includes a shell and a hydraulic rod. The inside of the shell is movably connected with a gear one, and the outside of the gear one is meshed with a gear two. The external fixed connection of gear two is gear three, the external movable connection of gear three is connected with gear rod, the external movable connection of gear rod is connected with connecting rod one, the external movable connection of connecting rod one is connected with connecting rod two, and the external movable connection of connecting rod two There are three connecting rods, through the interaction between gear one, gear two, gear three, gear rod, connecting rod one, connecting rod two, connecting rod three, movable block, rotating shaft, gear four, gear five, ring gear and cutter wheel Under the action, the rotating shaft can be rotated under the action of the reciprocating motion of the gear rod, so that a better rotating effect of the rotating shaft can be achieved, and the cooperation of multiple gears can make the broken bone inside the shell fully broken.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a special composite bone crusher for spinal surgery. Background technique [0002] The medical bone crusher is to chop the bone into very small particles of broken bone. The size of the particle meets the requirements of use. The broken bone is mainly used as a filler between the bone and the bone in the operation. It is currently known that the common spinal fusion operation You need to use broken bones. The spine is composed of different vertebral bodies connected by an intervertebral disc in the front and two small joints in the back. These joints allow the spine to bend and twist. With age or after trauma, these joints may wear or degenerate, thus Pain occurs. In spinal fusion surgery, it is necessary to chop up the bones taken from other parts of the patient, and the obtained bone particles are used for filling and supporting between adjacent vertebrae, so that...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the present invention provides a special composite bone crusher for spinal surgery, which has the advantages of high efficiency and precise grinding, and solves the problem of uneven bone particles caused by manual grinding of bone. There will be discomfort in the patient, which is not conducive to the postoperative recovery of the patient. Even today, there are professional grinding devices for grinding the broken bones, but the polished bones will be different from the actual bone due to the imprecise grinding device. There will be a certain gap in the requirements, which will affect the normal operation of the operation and the recovery of patients after surgery.

Images