Skull drill bit capable of stopping upon penetrating and skull drill

Abstract

The invention discloses a skull drill bit capable of stopping upon penetrating and a skull drill. The skull drill bit capable of stopping upon penetrating comprises a drill bit body, an amplitude-change pole, a connecting column, a reset spring, ejector heads, ejection head springs, elastic pins, an upper shell and a lower shell, wherein a center hole, a reset spring hole and a receding hole are sequentially formed in the connecting column; the reset spring is arranged in the reset spring hole; a disc part of the amplitude transformer is arranged in the receding hole and used for compressing the reset spring; a slender rod part of the amplitude-change pole is arranged in the center hole; the connecting column is further provided with a plurality of pin holes; ejection head holes communicating with the pin holes are formed in the end, close to the disc part, of the connecting column; the ejection heads are arranged in the ejection head holes; the ejection head springs are arranged in the pin holes; the elastic pins are arranged at the ends, away from the disc part, of the pin holes to press the ejection head springs; the drill bit is arranged at the end, close to the disc part, of the connecting column at an interval and provided with grooves matched with the tips of the ejection heads, and the connecting column and the drill bit are connected through the upper shell and the lower shell. When the drill bit drills through the skull, the drill bit stops rotating automatically, and the meninx is prevented from being injured when the drill bit drills through the skull.

Description

technical field [0001] The invention relates to the technical field of skull drills, in particular to a drilling drill bit and a skull drill with a self-stopping function. Background technique [0002] Increased intracranial pressure, craniocerebral injury, intracranial tumor, cerebrovascular disease, intracranial infection and other diseases are one of the killers that have been endangering human life and health for a long time. Brain surgery is an important means to cure such diseases. The primary principle in surgery is to preserve nerve tissue and reduce side damage and infection. Surgical power devices play a key role in brain surgery. Surgical power system refers to a surgical device that can provide the power, control and operating instruments required for surgery, reduce the work intensity of doctors, and achieve precise surgical operations. [0003] The outer layer of the human brain is covered by hair and skin. Under the scalp is the protective skull, and under th...

AI Technical Summary

Problems solved by technology

However, the existing skull drill is shut down by the operator based on experience and hand feeling. The risk of error is extremely high. The drill bit often damages the dura mater, and even penetrates into the central area of ​​brain function, resulting in a serious surgical accident with a high mortality rate.

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