Three-dimensional positioning device for thoracolumbar pedicle

Abstract

The invention provides a three-dimensional positioning device for the pedicle of thoracolumbar vertebrae, which includes a vehicle body assembly, a rotating assembly and a positioning assembly. The first end is fixed. In the rotating assembly, the two ends of the rotating plate are respectively connected with the first ends of the first rotating shaft and the second rotating shaft, and the second ends of the first fixed platform and the second rotating shaft are respectively connected with the second ends of the rotating platform bracket , the first end of the second rotating platform is connected with the second fixed platform. In the positioning assembly, the first ends of the first lead screw moving assembly and the second lead screw moving assembly are respectively fixed with the first end and the second end of the inner surface of the connecting plate, and the second end of the first lead screw moving assembly and The positioning needle assembly is fixedly connected, and the second end of the second lead screw moving assembly is fixedly connected with the puncture needle assembly. The invention can satisfy the puncture needle operation on both sides of the lumbar vertebrae of the patient under the condition that the vehicle body does not move, and has the advantage of high flexibility.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a three-dimensional positioning device for pedicles of thoracic and lumbar vertebrae. Background technique [0002] During the traditional thoracolumbar puncture, experienced professional surgeons usually determine the thoracolumbar puncture site, angle and skin surface puncture position based on experience. There are subjective uncertainties. Repeated fluoroscopy is required during the operation, increasing the radiation dose of the user and prolonging the Once the puncture deviation occurs, it will lead to serious complications and directly affect the quality of the operation. In view of this practical problem, considering the actual situation of thoracolumbar puncture and combining with the operation process, a three-dimensional positioning device for thoracolumbar pedicles that can assist surgeons to perform positioning and puncture is designed. [0003] Most of the ...

AI Technical Summary

Problems solved by technology

[0003] Most of the thoracic and lumbar pedicle positioning devices in the current technology use positioning nets or derivatives that are close to the user's skin for fixed points, and it is difficult to truly position, especially for angle and skin position control capabilities are still based on experience. Unable to be precise and standardized

The positioning devices in a small number of documents need to be fixed on the railings on both sides of the bed or placed directly on both sides of the bed, which is very cumbersome to use and poor in mobility

Moreover, the support parts on both sides of the locator are difficult to ensure that the fixed positions are on the same horizontal line when fixing both sides of the hospital bed, thus affecting the accuracy of the required puncture position; in addition, the support parts on both sides of the device in the prior art need to be synchronized Placed on both sides of the operating bed, the mobility is poor, and the patient's vertebral body scoliosis or rotational deformity is not considered, so the applicability of the positioning device described in the prior art is limited

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