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Lumbar spondylolisthesis lifting force real-time monitoring device and using method thereof

A real-time monitoring and lumbar spondylolisthesis technology, applied in the field of medical devices, can solve the problems of screw pulling out, decrease in biomechanical strength, and increase the risk of nerve damage, and achieve the effect of avoiding screw pulling out

Pending Publication Date: 2021-02-12
BEIJING JISHUITAN HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the difference in the stiffness, bone density, and intervertebral space release degree of the patient's spondylolisthesis, the pulling force of the screw required to reset the spondylolisthesis is also different. If the spondylolisthesis is reset by force, the screw will often be pulled out.
Once the screw is pulled out, the biomechanical strength will be significantly reduced after the screw is reinserted, and the risk of nerve injury will also increase

Method used

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  • Lumbar spondylolisthesis lifting force real-time monitoring device and using method thereof

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Embodiment Construction

[0024] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but only to illustrate the essence of the technical solutions of the present invention.

[0025] It should be noted that all directional indications (such as proximal end, distal end, front end, rear end, head end, tail end, etc.) in this embodiment are only used to explain the relative positional relationship and movement of various components in general operating postures. , that is, the side close to the operator is called the proximal end, rear end or tail end, and the side away from the operator is called the far end, front end or head end; if the operating posture changes, the directional indication also changes accordingly c...

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Abstract

The invention discloses a lumbar spondylolisthesis lifting force real-time monitoring device and a using method thereof. The lumbar spondylolisthesis lifting force real-time monitoring device comprises a lifting rod part, a fixed knob rod part, a lifting force monitoring system and a screwdriver part, wherein the interior of the lifting rod part is hollow; the fixed knob rod part is inserted intothe lifting rod part from a rear end of the lifting rod part, the fixed knob rod part comprises a first knob rod and a second knob rod which are rotationally connected with each other, and the secondknob rod is in threaded fit in the lifting rod part; the lifting force monitoring system comprises a hollow knob assembly and a monitoring assembly, the hollow knob assembly is connected to a tail endof the second knob rod, and the monitoring assembly is connected with the hollow knob assembly; the screwdriver part is movably arranged in the fixed rotary knob rod part and the hollow rotary knob assembly in a penetrating mode, a head end of the screwdriver part can move in the fixed rotary knob rod part in the axial direction, and a tail end of the screwdriver part is located outside the hollow rotary knob assembly.

Description

technical field [0001] The invention relates to a real-time monitoring device for lifting and pulling force of spondylolisthesis and a using method thereof, belonging to the technical field of medical devices. Background technique [0002] Lumbar spondylolisthesis is a common disease in spinal surgery. When conservative treatment fails, surgical treatment is required. Although spondylolisthesis reduction is not the ultimate goal of lumbar spondylolisthesis surgery, spondylolisthesis reduction has the advantages of increasing the area of ​​bone graft fusion, restoring the physiological curvature of the lumbosacral spine, and the load-bearing curve. As part of the treatment, anatomical reduction is achieved or as close as possible. However, due to the difference in the stiffness, bone density, and intervertebral space release degree of the patient's spondylolisthesis, the pulling force of the screw required to reset the spondylolisthesis is also different. If the spondylolist...

Claims

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Application Information

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IPC IPC(8): A61B17/88
CPCA61B17/88A61B17/8869A61B2562/0247
Inventor 郎昭朱志斌唐强吴静晔孙宇庆田伟
Owner BEIJING JISHUITAN HOSPITAL
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