Craniotomy cutter for craniotomy

Abstract

The invention discloses a cranial milling cutter for craniotomy, which comprises a shell, and a split drive device is provided extending through the inner cavity of the shell to the left, and a cranial drill is fixedly connected to the left end of the split drive device. A driving device is fixedly connected, and the driving device drives the split drive device to rotate, the right side of the housing is fixedly connected with a water cooling system, the bottom of the housing is fixedly connected with a handle, and the left side of the handle is provided with a A first control module and a second control module. Through the improvement of the milling cutter head in the present invention, the taiji-shaped protrusion can cut grooves on the bone, and the taiji-shaped protrusion ensures the stability of the milling cutter head, avoiding the sliding of the milling cutter head during the craniotomy operation, thereby The safety and stability of the operation are increased, and the Taiji-shaped protrusion also increases the speed of slotting, and can ensure that the bone chips are discharged to the outside, which is convenient for the processing of the bone chips.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a skull milling cutter for craniotomy. 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. [0003] 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 dri...

AI Technical Summary

Problems solved by technology

[0003] 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 drilling method starts, the skull is hard and spherical. The contact between the ring drill and the skull surface is not complete, so it is easy to slip, which may easily cause soft tissue injury and affect the opening operation. In addition, after the hole is made, the cut skull will not be easy to take out from the hole. ;

[0004] When trephine drilling, the bone chip particles produced by the existing drilling knife are relatively large, and the cutting surface is rough. If the large particle bone chip enters the brain and is not cleaned, it will have a certain impact on the postoperative operation and has hidden dangers. In addition, when bone debris remains on the cutting surface, it will also affect the cutting. When the bone debris accumulates in a certain place, it will cause errors in the skull cutting, and the high-speed rotating equipment is not easy to grasp, which increases the operation. Risk;

[0005] During cutting, heat will be generated due to the friction between the high-speed rotating drill and the skull. The main reason for the poor heat generation is due to the friction between the drill and the skull. In addition, the contact time between the drill and the skull is too long. Generally, labor-saving The way of flushing with water, the existing way requires the cooperation of external personnel, which affects the efficiency of the operation;

[0006] After the positioning hole is made, it is necessary to use a cutting knife, that is, a milling cutter, to cut between the two holes. The existing method uses two types of equipment for cutting, which increases the cost of the operation, and the existing milling cutter is in use. It is also not easy to control, and there are risks in use

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