Compound bone crusher used for spine surgery

Abstract

The invention discloses a compound bone crusher used for the spine surgery. A hydraulic cylinder is arranged on a bone crushing box, a mounting plate is fixedly arranged at the inner top of the bone crushing box, hydraulic telescopic rods connected with the hydraulic cylinder are symmetrically arranged on the mounting plate, a bone crushing and pressing plate is connected between the bottom ends of the hydraulic telescopic rods, a feeding port with a sealing cover is formed in a grinding cylinder, connecting blocks are arranged at the two sides of the grinding cylinder, connecting shafts are movably arranged between the connecting blocks and fixed side plates, a driving motor is connected to one connecting shaft, a sterilization and separation device is arranged at the portion, located between the fixed side plates, below the grinding cylinder, supporting legs are symmetrically arranged below a shell, and a fixed baseboard is connected between the supporting legs and the bottoms of thefixed side plates; and fixing nails are symmetrically arranged at the outer sides of the connecting blocks and are detachably connected with the inner wall of the bone crushing box, and limiting blocks are fixedly arranged below the connecting blocks. The compound bone crusher has the advantages that the device is simple in structure, crushed bone after crushing is unlikely to produce corner angles or spikes, and is free of powder, and the cleanliness and hygiene of the crushed bones are guaranteed.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a composite bone crushing device for spinal surgery. Background technique [0002] The medical bone crusher, as the name suggests, cuts the bone into very small particles of broken bone. The particle size meets the requirements of use. The broken bone is mainly used for filling between bones in surgery. Currently, the common spinal fusion surgery is known. 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. At this time, it is necessary to stabilize the arthritic part of the spine through drugs or surgery. If physical and drug treatments cannot control the pain, surgery is required. However, the stability established by various ...

AI Technical Summary

Problems solved by technology

[0003] Although other suitable crushed bones can be ground into the same shape as the mold bone, this crushing mechanism relies on crushing under pressure and crushing by the crushing blade, which will cause the surface of the crushed bone particles to be sharp and thorny, and the crushed bone particles Without grinding, cutting and screening, the particle size is inconsistent, and the inclusion of debris also affects the effect of bone crushing particles for filling support between adjacent vertebrae

Images