Craniotomy device and method for brain surgery

Abstract

The invention provides a craniotomy device and method for brain surgery, comprising: a positioning sleeve, the positioning sleeve is provided with an adjusting hoop that is threadedly matched with the adjusting hoop, and a There is a scale, and a sliding sleeve with a clearance fit is provided outside the adjusting hoop, and a righting limit sleeve that is rotationally connected is provided at the lower part of the sliding sleeve, and a drill pipe is arranged inside the righting limit sleeve, and a universal leveling joint is provided at the lower end of the drill pipe in turn And the casing drill, the casing drill is provided with a suction seat. In the present invention, the contact surface between the strip-shaped annular teeth and the skull is small, and the fit with the skull surface is good, so that all the annular teeth are in uniform contact with the skull surface, and the vibration force is extremely small during drilling, which can smoothly The skull hole is drilled through, and the phenomenon of drill sticking will not occur, and the drilling process is relatively simple and smooth; at the same time, the righting limit sleeve drill will not invade the meninges, the difficulty of drilling on the skull is extremely low, and the drilling process is simpler easy to operate.

Description

technical field [0001] The invention relates to a craniotomy device and method for brain surgery. Background technique [0002] The brain is the most fragile organ of the human body. The skull surrounds the brain to form a hard protective barrier. The brain has hundreds of millions of neurons, and the communication between neurons relies on long axons to transmit information. During intracranial craniotomy, the cut scalp is rolled up to one side to expose the skull. After determining the position of the skull cut, three holes are drilled in the skull, and the three holes are distributed in a triangle. The space is cut step by step with a scalpel, so that a triangular bone flap is cut off from the skull to realize the opening of the skull. The arcs formed by the three holes form a good transition to the corners of the triangle at the three corners of the triangular bone flap, which is convenient for stress relief. [0003] In today's craniotomy, the drilling of the skull is...

AI Technical Summary

Problems solved by technology

[0003] In today's craniotomy, the drilling of the skull is an essential operation for the formation of the bone flap. However, when the skull is drilled upwards, the existing drills usually use a raised drill tip for good centering of the drilling. The tapered, tapered drill tip is easy to center when drilling, but the raised tapered tip will first invade the inside of the skull and invade the meninges when the hole is about to be drilled, especially the arachnoid or deeper pia mater However, although the use of a flat drill tip at the drill bit avoids the disadvantages of a tapered tip, it is not only difficult to center the hole at the initial stage when drilling with a flat drill tip, but also the holes on the skull Drill sticking is especially easy to occur when drilling is about to leak out. The main reason is that the parallelism between the plane of the drill tip and the plane at the bottom of the skull hole is poor. Be extra careful when drilling the craniotomy, because the difficulty factor in the drilling process of the extremely difficult craniotomy is greatly increased, and the whole process of drilling is more difficult; When the head is subjected to vibration, the brain collides with the inner wall of the skull, and the higher frequency vibration causes the brain to squeeze the inner wall of the skull to produce shock waves that tear or pull the axons of some neurons, which is easy to cause damage

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