Adult tricorn frontal angle puncture guide and positioning device

Abstract

The invention provides an adult tricorn frontal angle puncture guide and positioning device. The adult tricorn frontal angle puncture guide and positioning device comprises a CT machine, positioning parallel rods, a square sliding chute, a horizontal angle ruler, a longitudinal graduation ruler and a horizontal holding rod, wherein the positioning parallel rods comprise four fixing rods which areparallel to each other and are in the Z direction, and the direction vertical to the Z direction and the median sagittal line is the X direction; the square sliding chute is fixed on the positioning rods, the front-back direction is the X direction, the left-right direction is the Y direction, the horizontal angle ruler and the longitudinal graduation ruler can perform translation motion along theY direction and the X direction of the sliding chute, the distance between a length simulation sliding chute of a slider at the tail end of each parallel positioning rod to the punctured brain surface is adjusted to be 2.5cm, the middle of the horizontal angle ruler is 0 degree, and radians of a circle with the radius being 2.5cm are simulated towards the two sides. According to the device provided by the invention, a CT axial plate is utilized for finding out the puncture point of the tricorn frontal angle, the distance d between the puncture point and the median line is measured, and the angle deviating towards the inside is calculated by utilizing the formula: (2.5-d)x12 degrees, the deflection angles of the positioning device and a puncture catheter on the horizontal angle ruler are adjusted, and thus the puncture direction of the puncture catheter is determined.

Description

technical field [0001] The patent of the present invention relates to a guiding and positioning device for puncture of the frontal angle of the lateral ventricle, and specifically relates to the stereoscopic auxiliary positioning of the puncture direction of the frontal angle of the lateral ventricle. Background technique [0002] Puncture of the frontal angle of the lateral ventricle is a commonly used method in neurosurgical treatment such as hemorrhage, hydrocephalus, and intracranial pressure after trauma. The puncture point is usually 11-12cm behind the nasion and 2.5cm lateral to the midline. Then judge and locate the required puncture direction, and finally use the puncture needle to puncture from the extracranial to the ventricle through the forehead puncture point. [0003] However, when neurosurgeons perform puncture direction positioning, sometimes the acupuncture direction is not parallel to the sagittal plane of the patient's head, and there is a certain angle....

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the patent of the present invention is that the puncture positioning equipment of the lateral ventricle and frontal horn in the prior art is expensive, or the equipment is large in size, the preoperative and intraoperative operation methods are complicated, and the blind puncture direction is judged by the lack of reference objects, which leads to puncture Low direction accuracy increases the problem of iatrogenic injury to patients

Images