High-precision positioning puncture mechanism for CT puncture guide and use method thereof

Abstract

The invention discloses a high-precision positioning puncture mechanism for CT puncture guiding. The high-precision positioning puncture mechanism comprises a connecting cavity, a third rotating shaft, a fourth rotating shaft, a worm, a worm gear, a rack, a rotating part, a bilateral rack, a clamping plate, a first rotating rod and a second rotating rod. The device can replace manual work to accurately position a marked part in actual use, so that a puncture needle can directly face the marked part through self-adjustment, positioning is more accurate, the puncture depth can be better controlled, sampling safety and accuracy are guaranteed, the labor intensity of medical staff is reduced, and high practicability is achieved; the upper part of the puncture needle can be sealed while the puncture needle is fixed through the linkage mechanism, so that the puncture needle is in a sealed state in an actual puncture process, sterile sampling is ensured, subsequent cleaning is convenient, and the overall operation is convenient. The problem that sampling errors or errors are caused due to the fact that the puncture position is still prone to deviation when a diagnosis and treatment physician conducts puncture sampling manually is solved.

Description

technical field [0001] The invention belongs to the field of CT diagnosis and treatment, and in particular relates to a high-precision positioning puncture mechanism for CT puncture guidance and a use method thereof. Background technique [0002] With the continuous development of science and technology, the application of CT examination in the medical field is becoming more and more extensive. CT examination is a more advanced medical imaging examination technology in modern times. CT examinations generally include plain scan CT, enhanced CT scan, and cisternal contrast CT. CT scans a layer of a certain thickness of a certain part of the human body with an X-ray beam. The X-rays that pass through this layer are received by the detector and converted into visible light, which is converted from photoelectricity into an electrical signal, and then passed through an analog / digital converter (analog / digitalconverter) into digital and input to computer for processing. [0003...

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Problems solved by technology

[0006] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a high-precision positioning puncture mechanism for CT puncture guidance and its use method, which solves the problem of marking the target position after CT scanning in the prior art, and subsequently passing diagnosis and treatment. Manual puncture sampling by doctors is still prone to puncture position deviation, resulting in sampling errors or errors

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