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Medical swing saw

A saw blade and swing shaft technology, which is applied in the field of hand-held medical swing saws, can solve the problems of easy sliding, wear and tear of the shift fork and swing shaft, and low strength, so as to avoid frictional contact, improve transmission efficiency, and prolong service life. Effect

Inactive Publication Date: 2007-09-12
苏州华盛医疗器械有限公司
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AI Technical Summary

Problems solved by technology

The current medical oscillating saw in the prior art usually includes an eccentric shaft connected to the motor. The eccentric shaft drives the swinging shaft to swing back and forth through a shift fork. It is easy to be damaged, so the service life of the medical oscillating saw is short; in addition, when the medical oscillating saw is running at high speed, the wear between the shift fork and the oscillating shaft is serious, and it is easy to slip, which reduces the transmission efficiency

Method used

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  • Medical swing saw

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Embodiment Construction

[0010] Accompanying drawing 1 and accompanying drawing 2 are a preferred embodiment of the present invention, a kind of medical oscillating saw, comprise: shell 1, the motor 2 that is arranged in the shell 1, the rotor part that is eccentrically arranged on the motor 2 An eccentric shaft 4 , a swing shaft 6 and a saw blade 7 fixedly connected to the swing shaft 6 .

[0011] Wherein, the axis line of the swing shaft 6 is perpendicular to the axis line of the eccentric shaft 4, and a shift fork 61 is integrally arranged coaxially on the swing shaft 6, and one end of the shift fork 61 is fixedly arranged on the swing shaft 6 coaxially. The other end of the fork 61 has a groove 611; the rotor part of the motor 2 is fixedly connected with the main shaft 41, the eccentric shaft 4 is eccentrically arranged on one end of the main shaft 41, the eccentric shaft 4 is sleeved with a bearing 5, and the bearing 5 The inner ring is fixed on the eccentric shaft 4, and the outer ring of the be...

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Abstract

The medical oscillating saw includes one casing, one motor with one eccentric rotor shaft, one oscillating shaft with axis perpendicular to the eccentric rotor shaft, one saw blade fixed onto the oscillating shaft, and one shifter fork with one end set on the oscillating shaft and the other end with one notch holding at least one part of the eccentric rotor shaft. During operation, the rotating eccentric rotor shaft drives one end of the shifter fork to oscillate, so that the other end of the shifter fork drives the saw blade to oscillate and cut via the rotating shaft. Compared with available technology, the medical oscillating saw of the present invention has the advantages of high strength, smooth driving, and long service life.

Description

technical field [0001] The invention belongs to the field of medical instruments, in particular to a hand-held medical pendulum saw. Background technique [0002] In orthopedic surgery, it is often necessary to use a saw to remove the patient's broken bone tissue. During cutting, in order to avoid excessive bleeding of the patient, the smaller the wound, the better. This requires the medical pendulum saw to be used in a smaller High-speed swing cutting within the stroke. The medical oscillating saws in the prior art usually include an eccentric shaft connected to the motor. The eccentric shaft drives the oscillating shaft to swing back and forth through a shift fork. It is easy to be damaged, so the service life of the medical oscillating saw is short; in addition, when the medical oscillating saw is running at high speed, the wear between the shift fork and the oscillating shaft is serious, and sliding is easy to occur, which reduces the transmiss...

Claims

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Application Information

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IPC IPC(8): A61B17/14
Inventor 任朴鲁仁义
Owner 苏州华盛医疗器械有限公司
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