CT guided percutaneous lung puncture space auxiliary positioning device

Abstract

The invention provides a CT guided percutaneous lung puncture auxiliary positioning device. The positioning device comprises a base module, an X axis horizontal moving module, a Y axis horizontal moving module, a Z axis vertical lifting module, an alpha axis attitude adjustment module and a beta axis attitude adjustment module connected with each other sequentially. A puncture needle passes through the centers of the alpha axis and the beta axis. When the rotation angles of the alpha axis and the beta axis are adjusted, the coordinates of the axes remain unchanged. By adjusting the X module, the Y module and the Z module, the coordinates of the centers of the alpha axis and the beta axis can be adjusted. The device is convenient for the space auxiliary positioning of the puncture needle in the percutaneous lung puncture operation process, and the lung of a patient can be scanned under the CT by the auxiliary device. The accurate adjustment function greatly improves the accuracy rate and success rate of the puncture operation, and has a broad application prospect for the other similar puncture operation.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a space-assisted positioning device for CT-guided percutaneous lung puncture with controllable coordinates and postures. Background technique [0002] At present, the clinical diagnostic methods for lung lesions include bronchoscopy, thoracoscopy, and percutaneous lung biopsy, but bronchoscopy only has a high diagnostic value for central lesions, and thoracoscopic biopsy has a higher diagnostic accuracy , but the operation trauma is relatively large, the incidence of complications is high, and there are certain limitations. However, the current clinical application of percutaneous lung puncture is far less extensive than that of fiberoptic bronchoscopy, mainly for the following reasons: [0003] 1. Traditionally, lung puncture is considered to be an invasive examination, which is poorly accepted by patients and their families. [0004] 2. Possible complications of pneum...

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Problems solved by technology

[0003] 1. It is traditionally believed that lung puncture is an invasive examination, which is poorly accepted by patients and their families

[0004] 2. Possible complications of pneumothorax and bleeding

[0005] 3. The operation is relatively difficult, requiring experienced respiratory or radiologists to operate, and the failure rate is high

[0006] 4. Lack of convenient and accurate auxiliary positioning device

[0007] In the traditional puncture method, when the puncture needle needs CT positioning after puncture into the lung, it cannot be fixed, causing the puncture needle to swing with the patient's breathing, and the needle insertion angle is easy to change, which may cause puncture failure or even Complications such as bleeding and pneumothorax

[0008] After searching, Xia Haibao et al. published the paper "Development of CT-guided Lung Puncture Positioning Device" in "China Digital Medicine", describing a puncture positioning device that can operate in two degrees of freedom, but the positioning of the puncture needle is five The complex spatial positioning of the degree of freedom, so the device cannot adjust the spatial coordinate position, and there are no direct parameters to quickly and accurately determine the direction of needle insertion and the location of the lesion

[0009] The utility model invention patent with the application number CN201521064681.4 has invented a vertical mobile puncture robot. The robot adopts a wheeled mobile mode and has a large size. It cannot move with the CT bed into the CT tomography machine for online detection. Does not describe how to implement bootstrapping in conjunction with CT

[0010] At present, there is no description or report of the similar technology of the present invention, and no similar data at home and abroad have been collected yet.

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