CT positioning puncture angle guider

Abstract

The invention relates to a CT positioning puncture angle guider. The CT positioning puncture angle guider comprises an angle adjusting mechanism and a needle clamping mechanism, wherein the angle adjusting mechanism comprises a main rod, a movable rod and a connecting rod; the movable rod is inserted into the main rod; the movable rod is rotationally connected with one end of the needle clamping mechanism through the connecting rod, and the other end of the needle clamping mechanism is rotationally connected with one end of the main rod; a sliding column is connected to the movable rod; a sliding groove is formed in the main rod; and the sliding column can slide along the sliding groove. A spiral body rotating relative to the main rod is arranged outside the main rod in a sleeving mode, the sliding column penetrates through the spiral body, by rotating the spiral body, the spiral body can push the sliding column to slide along the sliding groove while rotating, and therefore the movable rod slides in the axis direction of the main rod and sequentially drives the connecting rod and the needle clamping mechanism to act, and angle adjustment of the needle clamping mechanism is achieved. The CT positioning puncture angle guider is simple in structure, capable of achieving cross-layer operation, high in flexibility and capable of facilitating surgical operation and improving the puncture position precision.

Description

technical field [0001] The invention relates to the technical field of CT puncture, in particular to a CT positioning puncture angle guide. Background technique [0002] At present, when medical personnel perform CT positioning and puncture operations, they need to first determine the location of the lesion through CT, and then judge the required needle point position and angle through the doctor's clinical experience, and finally the medical personnel use the puncture guide to perform the puncture operation. [0003] Existing angled puncture guides generally use a planar template structure or a 3D printed template structure to guide the puncture. Among them, there are multiple puncture holes on the planar template structure, and the puncture needle is inserted into the lesion area through the puncture holes. Since the planar template structure is a planar shape, when guiding the puncture, the puncture needle can only be inserted vertically into the lesion area, and cross-la...

AI Technical Summary

Problems solved by technology

Among them, there are multiple puncture holes on the planar template structure, and the puncture needle is inserted into the lesion area through the puncture holes. Since the planar template structure is a planar shape, when guiding the puncture, the puncture needle can only be inserted vertically into the lesion area, and cross-layer operation cannot be realized. And the planar template structure is a whole, it can only be removed after the treatment operation is completed in all positions, and the flexibility is poor

The structure of the 3D printing template is to perform 3D scanning on the lesion part of the human body in advance before the patient undergoes CT puncture surgery, so as to print out the template corresponding to the position of the lesion, that is, the position and angle of the puncture are determined in advance, although the flexibility is higher than that of the planar template structure , but in the actual operation, it is inevitable that the patient's lying position is different from that of the 3D scanning, and the patient's human body undergoes a series of changes during the waiting period, which will easily lead to the puncture position and angle on the 3D printing template Actual deviation, low precision, and poor flexibility

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