Medical brain drill

Abstract

The invention belongs to the technical field of medical instruments for surgery and particularly relates to a medical brain drill. The medical brain drill is characterized by further comprising a limiting device, the limiting device is provided with a drill bit limiting hole and a drilling machine connecting rod, one end of the drill bit penetrates through the drill bit limiting hole to be fixedly connected with the limiting device, the other end of the drill bit is fixedly connected with the drilling machine connecting rod, a thread is arranged at the front end of the drill bit, an iron drill bit connecting shaft is arranged at the front end of a drilling machine, a groove matched with the drilling machine connecting rod is formed in the center of the iron drill bit connecting shaft, a magnet is arranged in the groove, a sterile sleeving bag is arranged out of the drilling machine, an elastic opening is formed in the sterile sleeving bag and located in the iron drill bit connecting shaft, and the drill bit is located on the exterior of the elastic opening. The medical brain drill has the advantages that the medical brain drill does not need to be used in cooperation with a positioning device of a stereotactie surgery instrument, potential dangers caused by invalidation of the limiting device are eliminated, and the medical brain drill is safer and more reliable; the drill bit is connected with the drilling machine through magnetic force, dismounting and mounting are convenient, and the drill bit cannot disengage from the drilling machine in the surgery process.

Description

technical field [0001] The invention belongs to the technical field of surgical medical instruments, in particular to a medical brain drill. Background technique [0002] During craniotomy, a drill is usually used to make a hole in the solid skull. When in use, the drill bit needs to be installed on the drilling machine first. In the prior art, the connection between the two often uses a threaded structure to screw the drill bit into the connecting part of the front end of the drilling machine. This connection method is easy to loosen the drill bit and the drilling machine during the operation. As a result, the depth of drilling into the skull is uncertain, which easily leads to operation failure, endangers the life safety of the patient, and is inconvenient to assemble and disassemble. When the drilling rig is in use, it will be covered with cloth temporarily, and only the drill bit will be exposed outside. During operation, it is easy to stir the cloth into the drilling r...

AI Technical Summary

Problems solved by technology

However, this structure is only to prevent the failure of the limit device, and it cannot play this role by itself, nor can it be used alone. It still needs to be used in conjunction with the stereotaxic surgical instrument.

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