Electric craniotomy drill bit

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an electric craniotomy drill bit. The electric craniotomy drill bit comprises a drill barrel, a clamping rod is fixedly connected to the top of the drill barrel and driven by a drilling and digging unit, and a core drill for positioning is fixedly connected to the inside of the drill barrel; a cylindrical protective cover sleeves the drill barrel, three sliding holes are evenly distributed in the circumference of the bottom of the protective cover, a fixed drill rod is rotationally connected to theinside of each sliding hole, and each fixed drill rod is driven by a driving unit to rotate; the clamping rod penetrates through the protective cover and is in sliding and sealing connection with theprotective cover; and the end, which is located outside the protective cover, of the clamping rod is fixedly connected with a limiting ring, and a first spring sleeves the portion, which is located between the limiting ring and the protective cover, of the clamping rod. According to the electric craniotomy drill bit, positioning is carried out through the three-point type fixed drill rods, sliding of the drill barrel is reduced, and then damage of a craniotomy drill to the head of a patient is relieved.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, in particular to an electric craniotomy drill bit. Background technique [0002] Craniotomy, also known as craniotomy, is a type of cranial surgery, which refers to the use of mechanical equipment to open the patient's skull to perform some unconventional treatments. The procedure of opening the patient's skull is usually to locate the positioning holes at three points in the area, and then use a milling cutter to cut between the positioning holes to remove the skull. This process often uses a skull milling cutter and a drilling drill. Both the knife and the drill are craniotomy instruments commonly used in neurosurgery. During brain surgery, the high-speed rotating milling unit is used to cut open the skull. When positioning the three holes, it is necessary to cut a hole in the skull. The existing operation method directly uses trephine drilling. However, when the trepanation drilli...

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Problems solved by technology

[0004] In order to make up for the deficiencies in the prior art, it solves the difficulty in positioning the drill bit of the craniotomy drill in the prior art, which makes the drill bit easy to slip off, thereby damaging other head parts, and at the same time, when the drill bit penetrates the skull, the intracranial pressure changes suddenly, thereby making the local cerebral cortex The problem of damage caused by deformation, an electric craniotomy drill bit proposed by the present invention

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