Guider for guiding puncture by using streaking formed on CT (Computerized Tomography) image

Abstract

The invention provides a guider for guiding the puncture by using streaking formed on a CT (Computerized Tomography) image. The guider comprises a guiding device, a universal support rod and a base, wherein one end of the guiding device is connected with one end of the universal support rod; the other end of the universal support rod is connected with the base; the guiding device comprises an angle indicating device and a needle holding guiding pipe device; the angle indicating device can be used for adjusting and indicating an included angle between a puncture needle and an X axis as well as an included angle between the puncture needle and a Y axis; and the needle holding guiding pipe device can be used for clamping puncture needles with different diameters. According to the guider disclosed by the invention, due to the utilization of focus position parameters determined by CT detection and a formulated the puncture scheme, the puncture scheme is simulated to carry out firstly by adjusting the position of the universal support rod and the angle indicating device and using the needle holding guiding pipe device to clamp the puncture needle; and the passage of the puncture is verified by using the streaking of the puncture needle formed on the CT image, thus improving the accuracy, the safety and the efficiency of the puncture and reducing the radiated quantity of patients.

Description

technical field [0001] The invention relates to a guide for clamping a puncture needle, in particular to a guide for puncture guidance using tail shadows formed on CT images, and belongs to the field of medical instruments. Background technique [0002] When a lesion occurs inside the human body, it is sometimes necessary to use a puncture to biopsy or treat the lesion. Usually, the orientation of the lesion and the skin positioning point and the depth of the puncture needle are measured by means of an instrument such as a CT scanning device. First, the position of the lesion is measured on a certain cross-sectional level of the human body, and the best needle insertion position is selected in this level. The angle of the needle entry plane, the three-dimensional conformation of the needle entry angle and the needle entry depth are used to determine the precise location of the lesion and the puncture needle. Although the CT scanning device can accurately determine the three...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a guide that uses the tail shadow formed on the CT image for puncture guidance, verify the feasibility of the puncture plan in advance, and solve the low positioning accuracy of the puncture guidance The problem

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