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Osteotomy device for precisely determining width

A width and osteotomy technology, applied in medical science, surgical sawing, surgery, etc., to achieve the effect of large joint thickness, precise width, and easy clamping

Pending Publication Date: 2019-03-22
SHANGHAI FIRST PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no osteotomy device that can precisely adjust the distance between the saw blades through the knob to achieve fixed width osteotomy and quantitative bone defect osteotomy, and has a reliable structure.

Method used

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  • Osteotomy device for precisely determining width
  • Osteotomy device for precisely determining width
  • Osteotomy device for precisely determining width

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Please refer to the attached figure 1 , with figure 1 It is a structural schematic diagram of an osteotomy device for precisely determining the width of the present invention. The osteotomy device with precise width determination includes a joint 1, a movable saw blade 2, a fixed saw blade 3, a movable block 4, a fine-tuning knob 5, a movable sleeve 6, a fixed sleeve 7, a screw rod 8, and a locking bolt 9; The joint 1 is Y-shaped, the front end is a conversion slot 10, and the end branch is two ends. Among them, the upper branch 11 is provided with a locking bolt 9 in the middle of the inner side, and the lower branch 12 is connected to the fixed saw blade 3. One-piece structure; the movable saw blade 2 is a Z-shaped structure, divided into a short end and a long end, and the long end has serrations; the movable block 4 is provided with a U-shaped groove, and the short end of the movable saw blade 2 can be Embedded in a U-shaped groove; the fixed sleeve 7 is a cylindr...

Embodiment 2

[0036] Please refer to the attached image 3 , with image 3 It is an enlarged schematic diagram of the knob of a precise width-determining osteotomy device of the present invention. The structure of the precise width-determined osteotomy device of this embodiment is basically the same as that of the embodiment 1, the difference is that the movable sleeve 6 is engraved with scale values; the described The scale value is engraved on the fixed sleeve 7, so when adjusting, first read the main ruler from the lower edge of the movable sleeve 6 at the position of the fixed sleeve 7, and then move from the horizontal line on the fixed sleeve 7. The number of divisions on the casing 6 can be read as a fraction less than one circle, and when the two are added together, the distance value between the movable saw blade 2 and the fixed saw blade 3 makes the adjustment more accurate.

[0037] The precise width-determined osteotomy device of the present invention has convenient adjustment...

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Abstract

The invention relates to an osteotomy device for precisely determining width. The osteotomy device for precisely determining width comprises a joint, a movable saw blade, a fixing saw blade, a movableblock, a fine adjustment knob, a movable sleeve, a fixing sleeve, a screw rod and a locking bolt, wherein the front end of the joint is a conversion groove, and the tail end is bifurcated into two ends; the movable saw blade has a Z-shaped structure; a U-shaped groove is formed in the movable block; the fixing sleeve has a through cylindrical structure; the upper part of the movable sleeve is ina cylindrical structure, and the lower part is in a hollow conical frustum structure; the fine adjusting knob has a cylindrical structure, and is connected to the top of the screw rod through threads;and the screw rod body is arranged at the center of the fixing sleeve. The device has the advantages that the adjustment is convenient, the structure is reliable, the distance between the saw bladescan be accurately adjusted through the knob to realize osteotomy with fixed width and quantitative bone defect osteotomy.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an osteotomy device for precisely determining the width. Background technique [0002] Oscillating saws are often used in surgical procedures for cutting bone. When in use, a saw blade is installed on the body of the pendulum saw, and the saw blade is driven to swing through a transmission mechanism to perform cutting operations. But in practice, sometimes it is necessary to meet the special osteotomy thickness according to the thickness of the strip saw blade. The common thickness: 0.7mm, 1.2mm, etc. For example, in orthopedic treatment research, it is necessary to accurately make fracture models in animal models. If a fracture seam with a width of 1.5mm is to be created, it is necessary to find a 1.5mm saw blade from a large number of saw blades. If it is a special size The saw blade needs to be specially customized, and there is no time-saving and convenient adju...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/16A61B17/14
CPCA61B17/14A61B17/1657A61B2017/564
Inventor 邓国英李元超范娇姣李春霖王琦
Owner SHANGHAI FIRST PEOPLES HOSPITAL
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