CT (Computed Tomography) guided assistant positioning puncture device

Abstract

The invention provides a CT (Computed Tomography) guided assistant positioning puncture device. The CT guided assistant positioning puncture device comprises a C-shaped support working arm, a C-shapedsupport connecting rod, a C-shaped support standby arm, an assistant positioning device, an assistant positioning camera, a puncture terminal, an angle adjusting device, an image processing and display system, a control system, a dedicated trolley and a dedicated correction device, wherein the C-shaped support working arm and the C-shaped support standby arm are connected to form a C-shaped support; a track sliding block is arranged in a track under the C-shaped support; the track sliding block is connected with the angle adjusting device; the other end of the angle adjusting device is connected with the puncture terminal; puncture operation is executed by the puncture terminal; the assistant positioning camera is arranged on a ceiling right above a CT bed and is used for assistant positioning on a puncture zone by combining the assistant positioning device. The CT guided assistant positioning puncture device provided by the invention is high in positioning accuracy and good in puncture accuracy, the puncture operation can be automatically completed under the control of the control system, error caused by human factors can be reduced, and the safety is increased.

Description

technical field [0001] The invention relates to the technical field of CT puncture guidance, in particular to an automated medical device for assisting percutaneous puncture to reach deep lesions under the guidance of CT. Background technique [0002] CT-guided percutaneous puncture is an important method for obtaining pathological materials from deep lesions in human organs for diagnosis or local treatment of certain diseases, such as percutaneous lung biopsy, percutaneous microwave therapy of liver tumors, etc. The percutaneous lesion puncture technique not only requires the puncture needle to accurately reach the target lesion, but also avoids damage to large blood vessels or other important structures and organs along the puncture path. At present, in this technology, the operator usually determines the puncture position and angle based on the CT cross-sectional scan image based on the sense of space, and manually punctures after local anesthesia. During the puncture pro...

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Problems solved by technology

[0003] This method has the following disadvantages: 1. Manual puncture requires the operator to have a superb sense of space and skilled technology. For small lesions or central lesions, especially near the heart, large blood vessels or other important organs, the accuracy of this method is insufficient. and the risk is extremely high

2. The operator needs to run back and forth between the scanning room and the image room. The lungs and lesions in the lungs are displaced with the breathing movement of the patient, especially the lower half of the lungs, which affects the accuracy of puncture.

3. The CT scan is a cross-section, and the puncture direction is adjusted left and right. For small lesions, especially those next to blood vessels or under the cover of ribs, the puncture needle needs to be adjusted head-to-foot, but these puncture routes span many A CT cross-sectional view, its accuracy and risk of vascular injury are difficult to grasp

[0006] 2. Guidance by collimator: calculate the puncture angle after CT scanning, and use the collimator to guide the puncture to avoid human estimation errors. It is still large; the fixed collimator is currently inconvenient to move, and it is mostly used to assist puncture after determining the puncture path, but the position of the collimator needs to be adjusted before puncture, and the accuracy is not high

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