Depth-adjustable annular bone saw and use method thereof

A circular and deep technology, applied in the field of medical equipment, can solve the problems of inconvenient operation, large cutting depth, and no safety measures, etc., and achieve the effects of convenient operation, avoiding excessive cutting, and high safety factor

Pending Publication Date: 2017-02-08
吴大怡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The operation is inconvenient, and it is necessary to observe the cutting depth while sawing the bone;
[0005] 2. Without insurance measures, it is easy to cause the cutting depth to be too large;

Method used

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  • Depth-adjustable annular bone saw and use method thereof
  • Depth-adjustable annular bone saw and use method thereof
  • Depth-adjustable annular bone saw and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figure 1-3 As shown, the adjustable-depth annular bone saw disclosed by the present invention includes a bone sawing cylinder 1, a spacer 2, and a connecting handle 3. The bone sawing cylinder 1 is cylindrical, and the top end of the bone sawing cylinder 1 is provided with annular serrations 11. , the bottom end of the bone sawing cylinder 1 is coaxially connected with the top end of the connecting handle 3, and the bottom end of the connecting handle 3 is provided with a hexagonal connecting portion 31, and the spacer 2 is screwed to the bone sawing cylinder 1, and the length of the spacer 2 is 0.5mm , 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm, 7.0mm, 7.5mm, 8.0mm, 8.5mm, 9.0 mm, 9.5mm or 10mm, threaded hole 13 is provided at the inner bottom of bone sawing cylinder 1, pad 2 includes cylindrical pad body 21, connecting end 22 adapted to threaded hole 13, bottom end of pad body 21 and connecting end 22 Coaxial fixed con...

Embodiment 2

[0043] On the basis of Embodiment 1, the structure of the spacer 2 is replaced by: the spacer 2 includes a screw 23 and a pipe body 24, the screw 23 is adapted to the threaded hole 13, the inner diameter of the pipe body 24 is larger than the diameter of the screw 23, and the pipe body The inner diameter of 24 is smaller than the diameter of the head of the screw 23, the screw 23 is a flat head screw, and the top surface of the pipe body 24 is adapted to the lower surface of the head of the screw 23.

[0044] The method of use is the same as that of the first embodiment, specifically in the first step, the screw 23 is used to pass through the pipe body 24 and screw into the threaded hole 13 .

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PUM

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Abstract

The invention discloses a depth-adjustable annular bone saw and a use method thereof and belongs to the field of medical instruments. The depth-adjustable annular bone saw comprises a saw bone drum, a cushion block and a connecting handle, wherein the saw bone drum is of cylindrical shape; annular saw teeth are arranged at the top of the saw bone drum; the bottom end of the saw bone drum is coaxially connected with the top end of the connecting handle; a hexagonal connecting part is arranged at the bottom end of the connecting handle; the cushion block is detachably mounted in the saw bone drum. The depth-adjustable annular bone saw can achieve the function of limiting the depth of the bone tissue cut by the bone saw by exchanging the cushion blocks in different lengths; the operation of sawing bone while observing the cutting depth is not required; the excessive cutting accident can be avoided; the operation is more convenient and the safety factor is higher.

Description

technical field [0001] The invention relates to a medical device, in particular to a circular bone saw with adjustable cutting depth. Background technique [0002] The existing medical circular bone saw only has a scale on the surface, that is, a mark showing the depth is provided outside the bone saw. In the process of specific cutting, the operator needs to carefully observe the depth of cutting. [0003] There are following deficiencies in the prior art: [0004] 1. The operation is inconvenient, and it is necessary to observe the cutting depth while sawing the bone; [0005] 2. Without insurance measures, it is easy to cause the cutting depth to be too large; [0006] 3. The logo is set on the outer surface of the bone saw, and when the bone is sawed, the rotation of the bone saw is not conducive to the operator's observation; Contents of the invention [0007] The purpose of the present invention is to provide a circular bone saw with adjustable depth, which can r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/14
CPCA61B17/14
Inventor 吴大怡
Owner 吴大怡
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