Electric craniotomy annular drill bit with depth limiter, and using method thereof

Abstract

The invention discloses an electric craniotomy annular drill bit with a depth limiter, and a using method thereof, and belongs to the field of medical instruments. A detachable centering drill is installed at the circle center position of the electric craniotomy annular drill bit, the drill bit end of the centering drill is higher than the plane where the annular drill tooth end is located, a threaded rod is arranged between the annular drill bit and the cutter handle, the threaded rod is in threaded connection with a depth limiting positioner, the depth limiting positioner is arranged on the periphery of the annular drill bit, a depth locking nut is arranged on the screw rod at the rear end of the depth limiter, and depth scales are engraved on the periphery of the annular drill bit. According to the electric craniotomy annular drill bit with the depth limiter, the electric drill is used for cutting the skull through a small gap, craniotomy time is shortened, the cutting depth is accurately controlled, healing between the skull and the slice in the growth process after operation is shortened, and postoperative rehabilitation time is shortened.

Description

technical field [0001] The invention relates to a circular drill and a using method thereof, in particular to an electric craniotomy circular drill with a depth limiter and a using method thereof, belonging to the field of medical instruments. Background technique [0002] Brain lesions are common clinical diseases, including intracranial tumors, intracranial infection, increased intracranial pressure, encephalitis, cerebral hemorrhage, cerebral ischemia, cerebral infarction, brain tumor, cerebral palsy, effusion, cerebrovascular malformation, medulla oblongata Paralysis, etc. [0003] Mild cases can cause dizziness, nausea, insomnia, memory loss, dementia, depression, moderate cases can cause aphasia, limb impairment, and severe cases can cause hemiplegia, loss of consciousness, vegetative state, and even death. [0004] Especially for diseases such as cerebral hemorrhage and brain tumor, it is necessary to implement rescue treatment in a short period of time, otherwise it...

AI Technical Summary

Problems solved by technology

[0008] At present, in craniotomy operations, electric craniotomy drills are mostly used together with milling cutters or bow-shaped hand-operated trephine drills. The former drills a large hole and the gap between the skull slices is large, which is not conducive to the growth and connection between the skull slices and the skull after reset. Poor depth control. The latter tool uses a circular drill bit. This tool has an eccentric force during the drilling process, which may easily cause the drill bit to be eccentric during rotation, thereby causing the gap between the circular opening drill to increase, which is not conducive to the repositioning of the skull slice. The growth connection between the skulls. In addition, it takes 20-30 minutes to open the craniotomy. The operation is laborious and time-consuming, which will reduce the physical strength of the doctor during the operation. It is a disadvantage for doctors who operate for a long time. Moreover, during the craniotomy process, the positioning of the skull cutting depth is poor, and there is a certain risk

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