Hand drill for brain surgery and bone surgery

Abstract

The present invention relates to a hand drill for brain surgery and bone surgery. The hand drill comprises an upper cover and a lower cover, a connecting rod is arranged in the lower cover, surface ofone end of the connecting rod is provided with knurls, the surface knurl end of the connecting rod is provided with a left-hand helical tooth in a pressing-manner, the other end of the connecting rodis connected with a clamping head through a screw tooth M6, a twist drill is arranged at one end of the clamping head, a handle drives the connecting rod to rotate through the left-hand helical tooth, the handle is provided with 35 teeth, the left-hand helical tooth is provided with 10 teeth, the handle rotates for one circle, and the twist drill rotates for 3.5 circles. The hand drill is simplein structure, convenient to use, lower in cost, easy for a sterilization treatment, easy in control of depths, forces and drilling speeds of drilled holes, and free of vibration in the operation process and risks of burning human body tissues near the drilled holes.

Description

technical field [0001] The invention relates to a medical device, in particular to a hand drill for brain surgery and orthopedic surgery. Background technique [0002] Electric drills are often used in various operations in brain surgery and orthopedics. At present, most of the practical surgical electric drills basically have no limit or positioning mechanism. Other human injuries; in addition, the electric drill rotates faster, the drill bit heats up too fast, and the phenomenon of burning human tissues near the drill hole often occurs during the operation; the strong vibration of the electric drill during the operation is extremely harmful to the human body, especially in brain surgery. When the local intracranial pressure increases, the vibration aggravates the edema and destruction of the brain tissue, and promotes the occurrence of cerebral herniation. Strong vibration may cause bleeding in fragile intracranial lesions. Cause the thrombus to fall off and cause bleedin...

AI Technical Summary

Problems solved by technology

[0002] Electric drills are often used in various operations in brain surgery and orthopedics. At present, most of the practical surgical electric drills basically have no limit or positioning mechanism. Other human injuries; in addition, the electric drill rotates faster, the drill bit heats up too fast, and the phenomenon of burning human tissues near the drill hole often occurs during the operation; the strong vibration of the electric drill during the operation is extremely harmful to the human body, especially in brain surgery. When the local intracranial pressure increases, the vibration aggravates the edema and destruction of the brain tissue, and promotes the occurrence of cerebral herniation. Strong vibration may cause bleeding in fragile intracranial lesions. Cause the thrombus to fall off and cause bleeding again. For the doctor's operation, the vibration will lead to poor hand feeling feedback during the doctor's operation, resulting in a decrease in surgical accuracy; moreover, due to electronic structure problems, it is difficult to achieve complete aseptic treatment of the electric drill

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