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Medical bone drill

A bone drill and drill bit technology, applied in the field of medical devices, can solve the problems of easily scratching the epidermis, wasting operation time, patient pain, etc., and achieves the effect of controllable speed and depth of hole turning, short operation time, and less pain for patients

Active Publication Date: 2014-03-26
WEIHAI WEICHUANG MEDICAL DEVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in clinical operations, there are three types of bone drills used: electric bone drill, hand-operated bone drill and hand-cone drill. The electric bone drill is composed of a shell, a motor, a transmission device and a drill chuck. Located in the housing, the motor is fixedly connected to the drill chuck through the output shaft of the transmission device. Its disadvantages are: the electric bone drill is not easy to sterilize, expensive, difficult to control, and easy to operate; the manual bone drill needs two hands to operate , the operation is extremely inconvenient; the hand awl drill needs to use a lot of force when drilling, and the speed is too slow, which wastes the operation time and causes pain to the patient
Moreover, the depth positioning devices used by these three bone drills move together with the drill bit, which is easy to scratch the epidermis

Method used

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Embodiment 1

[0028] as attached figure 1 The illustrated embodiment 1: a medical bone drill, including a housing 1, a drill bit 2, a rotating shaft 3, a one-way bearing 4, a driving wheel 31, a forward rotation bevel gear 7, a small bevel gear 9, a return spring 10 and a trigger 14, The rear part of the drill bit 2 is fixedly connected with the housing 1 through the bearing. The housing 1 is in the shape of a pistol. The housing is fixed by the left housing and the right housing. Forward rotating bevel gear 7 and one-way bearing 4, the two ends of rotating shaft 3 are respectively connected with housing 1, one-way bearing 4 is fixed in the driving wheel 31, and the corresponding driving wheel 31 side is provided with small bevel gear 9, small bevel gear 9 is fixedly connected with the drill bit 2, the lower end of the drive wheel 31 is fixedly connected with the trigger 14, and the trigger 14 is connected with the housing 1 through the return spring 10, so that the trigger 14 automaticall...

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Abstract

The invention relates to the technical field of medical instruments, in particular to a medical bone drill. The medical bone drill comprises a shell and a drill bit. The medical bone drill is characterized in that a rotating shaft, a one-way bearing, a drive wheel, a forward bevel gear, a bevel pinion, a reset spring and a trigger are arranged; the back portion of the drill bit is fixedly connected with the shell through the bearing, the shell is in a gun shape, the rotating shaft is arranged in the shell, the forward bevel gear and the one-way bearing are arranged on the rotating shaft, the two ends of the rotating shaft are respectively connected with the shell, the one-way bearing is fixed in the drive wheel, the bevel pinion is arranged on one side corresponding to the drive wheel, the bevel pinion is fixedly connected with the drill bit, the lower end of the drive wheel is fixedly connected with the trigger, and the trigger is connected with the shell through the reset spring. Through the adoption of the structure, the medical bone drill has the advantages of being simple in structure, controllable in drilling speed and drilling depth, convenient to control and short in operation time, and pains of patients are fewer.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a medical bone drill. Background technique [0002] At present, in clinical operations, there are three types of bone drills used: electric bone drill, hand-operated bone drill and hand-cone drill. The electric bone drill is composed of a shell, a motor, a transmission device and a drill chuck. Located in the housing, the motor is fixedly connected to the drill chuck through the output shaft of the transmission device. Its disadvantages are: the electric bone drill is not easy to sterilize, expensive, difficult to control, and easy to operate; the manual bone drill needs two hands to operate , The operation is extremely inconvenient; the hand awl drill needs to use a lot of strength when drilling, and the speed is too slow, which wastes the operation time and causes pain to the patient. Moreover, the depth positioning devices adopted by these three kinds of bone dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/16
CPCA61B17/16A61B17/1624A61B17/1633
Inventor 朱亮洪
Owner WEIHAI WEICHUANG MEDICAL DEVICES CO LTD
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