Special compound bone crusher for spinal surgery

Abstract

The present invention relates to the technical field of medical devices and also discloses a special compound bone crusher for spinal surgery. The special compound bone crusher for spinal surgery comprises an outer shell and a hydraulic rod, the outer shell is internally provided with a first gear, an outside of the first gear is engaged with second gears, outsides of the second gears are fixedlyconnected with third gears, outsides of the third gears are movably connected with a toothed bar, an outside of the toothed bar is movably connected with a first connecting rod, an outside of the first connecting rod is movably connected with a second connecting rod, and an outside of the second connecting rod is movably connected with a third connecting rod. Under interactions of the first gear,the second gears, the third gears, the toothed bar, the first connecting rod, the second connecting rod, the third connecting rod, a movable block, a rotating shaft, a fourth gear, fifth gears, a gearring and a cutter wheel, the rotating shaft can rotate under the action of the reciprocating motion of the toothed bar, so that a better rotating effect of the rotating shaft can be realized, and broken bones can be sufficiently crushed inside the outer shell through matching of the gears.

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.

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