Multi-angle adjustment puncture fixator based on medical image guidance

Abstract

The invention discloses a multi-angle adjustment puncture fixator based on medical image guidance. The fixator comprises a base sleeve, an adjusting plate, a gear sleeve, a rotating shaft, a gear clamping plate, a fixed seat, a screw rod, a sliding block, a positioning arc plate I, a positioning arc plate II, a sliding plate and a middle positioning plate. The invention discloses the multi-angle adjustment puncture fixator based on medical image guidance. Firstly, a combined structure is adopted, so that installation and operation are convenient; secondly, longitudinal angle and transverse angle double-adjustment guide design is adopted, rapid positioning of multiple angles and degrees of freedom can be met, puncture accuracy is improved, clinical operation is facilitated, and the problemthat an assistant is needed for fixing a puncture needle during conventional needle biopsy is solved; and finally, the distance between the positioning arc plates can be adjusted in cooperation with alead screw structure, and adaptive adjustment can be conducted according to the sizes of the head, limbs and other areas of a patient. In conclusion, the fixator is high in practicability, stable, reliable and extremely high in application and popularization value.

Description

technical field [0001] The invention relates to a puncture fixture, in particular to a multi-angle adjustment puncture fixture based on medical image guidance. Background technique [0002] At present, the key technology of CT or MRI-guided puncture in major hospitals is that the puncture needle entry and the scanning level are at the same level, but because the scanning level is generally not more than 1 cm, the doctor will use the image scanning diagram according to the key technology. Determining the needle entry point and needle entry angle with the naked eye is often due to the thin scanning layer or the difference in the clinical experience and technical level of the doctor, resulting in the failure of needle tract puncture and even complications. [0003] According to the above, the Chinese published patent: combined puncture fixator under the guidance of medical images (patent number: 201821165518.0), there are many defects and shortcomings, as follows; [0004] 1. ...

AI Technical Summary

Problems solved by technology

[0004] 1. The angle positioning is simple, and it is impossible to realize multi-angle and multi-degree-of-freedom positioning according to the needs, so the practicality is greatly reduced;

[0005] 2. A fixed combined structure is adopted, so it is impossible to make adaptive adjustments according to the size range of the puncture site, which is very restrictive

[0006] 3. The stability is poor, it needs to be used in combination and fixed, the operation is complicated, and it also increases the difficulty of operation

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