Lumbar posterior surgery distraction device convenient to install and position

Abstract

A lumbar posterior surgery distraction device convenient to install and position comprises an operating bed, two horizontally-arranged arc-shaped rods are arranged above the operating bed, each arc-shaped rod is installed on the operating bed through a set of adjusting and locking devices, a first guide rail is installed on the bottom face of each arc-shaped rod, and a first sliding block with a locking function is arranged on the lower portion of each first guide rail; a retractor is installed at the lower end of the first sliding block, and two sets of positioning opening devices are arranged between the two arc-shaped rods and can move in the length direction of the arc-shaped rods to adjust the distance between the two arc-shaped rods. The mode that the retractor is matched with the vertebral sections of a patient is adopted, the two adjacent vertebral sections are slowly distracted, so that the vertebral section distracting effect is achieved, meanwhile, the two vertebral sections are distracted and fixed in the whole operation process through matching of the two positioning distracting devices and the adjusting locking device, the stability of vertebral section distracting is guaranteed, and meanwhile, distraction can be conducted more accurately, and manual fixing is not needed.

Description

technical field [0001] The invention belongs to the field of lumbar spine surgery equipment, in particular to a distraction device for posterior lumbar spine surgery which is convenient for installation and positioning. Background technique [0002] With the improvement of living standards, lumbar spine disease has become a more common disease at present, and lumbar posterior interbody fusion is a kind of orthopedic spinal fusion surgery, which requires the use of lumbar posterior retractor The operation can only be performed by stretching the two adjacent lumbar vertebral segments. However, in the prior art, most of the medical staff manually perform the stretching operation. Nowadays, there are many cases of lumbar spine bending and deformation, and there are few posterior lumbar distraction devices that can address the deviation of the vertebral segments. Therefore, it is more difficult to operate the posterior lumbar spine, and the workload of the medical staff during th...

AI Technical Summary

Problems solved by technology

[0002]With the improvement of living standards, lumbar spine disease has become a relatively common disease, and the posterior lumbar interbody fusion is a kind of orthopedic spine surgery. Fusion surgery requires the use of a lumbar posterior retractor to spread the two adjacent lumbar vertebrae before the operation can be performed. It is not high, and the range of distraction is difficult to grasp, and the operation is difficult. At the same time, there are many cases of lumbar spine bending and deformation, and there are few posterior lumbar distraction devices that can address the deviation of the vertebral segments. Therefore, the posterior lumbar distraction operation is difficult It is more difficult, and the workload of the medical staff during the whole operation is greater

Images