A human body puncture positioner

Abstract

The invention discloses a human body puncture positioning device, which comprises four connecting rods, a positioning plate and a positioning bracket, wherein the four connecting rods are connected movably in sequence; a locking device is arranged at each movable connecting position; the positioning bracket is provided a sleeve which is sleeved at the movable end of a fourth connecting rod, and is rotationally connected with the fourth connecting rod; one side of the positioning bracket is provided with the fixing plate which is provided with an arc-shaped groove; one side of the positioning plate is rotationally connected to the positioning bracket; one end of the other side of the positioning plate is locked in the arc-shaped groove of the fixing plate of the positioning bracket; the circle center of the arc-shaped groove is collinear with one side of the positioning plate which is rotationally connected to the fixing bracket; and a locking device is arranged at each rotating position. Due to the structures of the rotatable positioning bracket and the rotatable positioning plate which is connected with the rotatable positioning bracket, puncture positioning is simple and easy to operate, accurate puncture positioning in any spatial three-dimensional direction can be performed, the difficulty of puncture operation is greatly lowered, and the pain of a patient in an operation process is greatly relieved.

Description

technical field [0001] The invention is a medical device, in particular to a human body puncture positioner. Background technique [0002] At present, the method of percutaneous puncture is often used clinically to diagnose and treat diseases. clinically. During the puncture process, accurate positioning plays a decisive role in the success rate of puncture. In the past, doctors usually used experience to find the puncture location and directly inserted the puncture needle into the lesion. This operation was inaccurate and often required several times to find the exact location of the lesion. It was prone to deviations in needle insertion and affected the treatment effect. With the continuous development of medical imaging technology, percutaneous puncture under the guidance of CT has now appeared. Determining the puncture point and puncture depth through the guidance of CT imaging equipment greatly improves the accuracy and safety of puncture, but because CT guidance is ...

AI Technical Summary

Problems solved by technology

Determining the puncture point and puncture depth through the guidance of CT imaging equipment greatly improves the accuracy and safety of puncture, but because CT guidance is not real-time, after the CT scanner gives the angle and depth of the puncture needle, It is still necessary for the surgeon to judge based on experience and operate with a puncture needle in hand. Due to the deviation of the position and direction of the doctor's gesture, it is impossible to accurately locate and find the optimal surgical depth, and repeated punctures are required.

[0003] In response to the above problems, people have recently developed some puncture positioners, puncture racks, etc. For example, the Chinese invention patent application with application number 201010127718.9 discloses such a puncture positioning device, such as figure 1 As shown, it includes a bed board 1 and a puncture template support 2 located on the bed board 1, and a puncture template 3 installed on the puncture template support 2, and the puncture template support 2 includes an upper upper bracket 2A and a lower base 2B, the upper support 2A can move up and down relative to the base 2B and be locked to adjust the height of the puncture template 3, and the base 2B of the puncture template support 2 can slide and lock along the length direction of the base 2B Tight, the puncture template 3 can slide and rotate along the upper bracket 2A in the width direction of the bed board 1, the puncture positioning device improves the accuracy of puncture to a certain extent, but the puncture positioning operation is complicated and cannot be Arbitrary positioning in the three-dimensional direction of space, it cannot be accurately positioned in the direction of rotation, and it cannot be well matched with the surface of the human body

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