Portable positioning device for intracerebral cathetering

Abstract

The invention discloses a portable positioning device for intracerebral cathetering in neurosurgery. In cerebral hemorrhage or other brain diseases, the surgery application range of intracerebral cathetering is wide. Most of diseases of people suffering from the brain diseases are sudden onset; in the emergency surgery, the lesions are roughly positioned according to a preoperative computed tomography (CT) film under the general condition, free-hand puncturing is performed, and the cathetering path, direction and depth cannot be accurately controlled. The positioning device can find the level reached by cathetering through CT according to the principle that distances between all points on a spherical surface and a sphere center are equal, and the position of a catheter to be placed in the brain is adjusted to the angle that the sphere center of the positioning device and the puncturing direction can be changed front and back and left and right, and the cathetering depth is the radius of the sphere, so that the device can accurately reach the puncturing point. The positioning device is convenient to operate in intracerebral cathetering surgery such as intracranial hematoma puncturing, ventricular puncturing, and brain abscess puncturing, and can position the lesions accurately, and improve the achievement ratio of surgery. The portable positioning device is convenient to operate and practical in the encephalic cathetering in brain surgery and has wide popularization and application prospect.

Description

technical field [0001] The invention belongs to a positioning instrument for intracerebral tube operation in brain surgery, which is convenient, practical and accurate during the intracerebral tube operation. It belongs to the field of medical equipment. Background technique [0002] Cerebral catheterization is a common surgical method in brain surgery, and it is often used for cerebral hemorrhage, ventricular hemorrhage, brain abscess and other diseases. Such patients are generally emergency patients with serious conditions. Generally, according to the preoperative CT film and the patient's body surface landmarks, rough positioning and manual puncture are performed, and the catheterization path, direction and depth of the catheterization cannot be precisely controlled; especially When the scalp puncture point and the implanted tube in the brain are not on the same CT scan level (such as lateral ventricle puncture), when the tube needs to form a certain angle with the skull...

AI Technical Summary

Problems solved by technology

[0003] At present, the clinical positioning methods for brain surgery catheterization: ①Lateral ventricle catheterization: Generally, a hole is drilled 2.5 cm away from the midline 2 cm before the coronal suture, and the direction of catheter placement is the line connecting the inner canthus on the same side and the bilateral external auditory canals. The intersection point, the depth of catheterization is 5-8cm, and it can be adjusted according to experience for different groups of people; ②Cerebral hemorrhage hematoma cavity puncture: Generally, when the puncture is performed at the same level of CT scan, the scalp puncture point and catheter depth can be determined according to the CT scan, but sometimes due to drilling The displacement of the hole may lead to inaccurate puncture; sometimes in order to avoid important intracranial functional areas, when the scalp puncture point and the position of the intracranial tube are not on the same CT scanning plane, or when the tube requires a certain angle, the puncture tube is often added during measurement. The accuracy of puncture tube placement is not guaranteed, and the effect is not good; ③brain stereotaxic puncture: This operation requires wearing a headgear before the operation, and then punctures the tube after positioning and scanning in the CT room. Although the surgical positioning is accurate, the The operation process is cumbersome and takes a long time, so it is not suitable for patients who are critically ill, unconscious, and irritable

However, clinically most patients with catheterization are patients with cerebral hemorrhage. They are critically ill, unconscious, restless, and are not suitable for stereotaxic puncture. They need a convenient, fast and accurate locator. Catheter insertion surgery provides protection for bleeding and other emergency patients

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