Intelligent device for lumbar vertebra interspinous dilation

Abstract

The invention discloses an intelligent device for lumbar vertebra interspinous dilation. The intelligent device comprises a dilator body, a base, a universal arm and a telescopic mechanism. The dilator body comprises dilating jaws, a parallel expander and a handle; the base is provided with a supporting arm, and the telescopic mechanism is slidably connected to the supporting arm through the universal arm and comprises a screw rod, a screw rod sleeve, a speed reducer and a driver; the screw rod is rotationally connected in the screw rod sleeve, an extending end of the screw rod is hinged to one grip of the handle, and the screw rod sleeve is fixedly connected with the other handle of the handle; the driver and the screw rod sleeve are fixedly connected, the driver is in transmission connection with the screw rod through the speed reducer, and the driver rotates to enable the screw rod to extend and retract between the two grips so as to drive the dilating jaws to open and close. Accurate control of an interspinous dilation angle is realized, the intelligence degree is raised, manual operations are reduced, and probability of artificial damages is lowered.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an intelligent device for opening the interspinous processes of the lumbar spine. Background technique [0002] Now the incidence of lumbar spondylosis is getting higher and higher. For sedentary people, lumbar spondylosis has gradually become an occupational disease, and diseases such as lumbar disc herniation and lumbar spinal stenosis are becoming more and more common. Currently, posterior lumbar laminectomy, lumbar intervertebral fusion, and pedicle fixation are used in clinical operations. After the lamina of the corresponding segment is resected during the operation, the dural sac needs to be retracted, and the intervertebral space in front of it should be processed from both sides of the dura mater from back to front. Most of the above-mentioned diseases are accompanied by osteophyte hyperplasia at the posterior border of the vertebral body, which will lead to n...

AI Technical Summary

Problems solved by technology

[0004] The aforementioned lumbar interspinous process distraction devices have deficiencies. For example, by manually stretching the interspinous processes and relying on experience to control the strength, the angle of distraction cannot be strictly controlled. Improper operation will cause artificial damage, and it is impossible to achieve precise numerical control.

In addition, when the lumbar interspinous process distraction device stretches the interspinous process, it needs to be held to maintain its balance. If the lumbar spinous process is only used to support the balance of the lumbar spinous process distraction device, it will cause serious damage to the lumbar spinous process. certain damage

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