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Multi-purpose bone harvesting device

A technology of a bone part and a cylindrical body is applied in the field of multi-purpose bone extracting devices, which can solve the problems of inability to locate the bone extractor, poor bone extracting effect, easy scratching of the iliac bone surface, etc., and achieves good sawing effect and bone extracting effect. Good, simple structure

Active Publication Date: 2017-01-11
江苏道道新医疗科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned solution solves the problem of poor bone harvesting effect to a certain extent, but this solution still exists: the problem that the bone harvester cannot be positioned and the surface of the ilium is easily scratched

Method used

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  • Multi-purpose bone harvesting device
  • Multi-purpose bone harvesting device
  • Multi-purpose bone harvesting device

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as Figure 1-4 As shown, the multi-purpose bone-taking device includes a cylindrical body 1, a positioning rod 2 and a bone-taking shovel body 3. The front end of the cylindrical body 1 is provided with several circumferentially distributed sawtooth bodies 11, and the rear end of the cylindrical body 1 There is a torsion mechanism that can drive the cylindrical body 1 to rotate. The cylindrical body 1 has a central channel 12 that penetrates axially and can be inserted into the positioning rod 2 and the bone-taking shovel body 3 respectively. The front end of the positioning rod 2 has a The positioning cone tip 21 exposed at the front end of the cylindrical body 1 in the central passage 12, the rear end of the positioning rod 2 has a force-bearing part 22 for bearing external forces, and the bone-taking shovel body 3 inclu...

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Abstract

The invention relates to a multi-purpose bone harvesting device, and aims to solve the problems such as poor effect of bone harvesting of the existing bone harvester. The device comprises a cylindrical body, a positioning rod and a bone harvesting shovel body, wherein the end part of the front end of the cylindrical body is provided with a plurality of serrate bodies which are circumferentially distributed; the rear end of the cylindrical body is provided with a torsion mechanism; the cylindrical body is provided with a central passage which axially runs through and in which the positioning rod and the bone harvesting shovel body can be inserted respectively; the front end of the positioning rod is provided with a positioning conical tip which is exposed out of the front end of the cylindrical body when the positioning rod is inserted into the central passage; the rear end of the positioning rod is provided with a stress part for bearing an external acting force; the bone harvesting shovel body comprises a rod body and a shovel head which is arranged at the front end of the rod body and is provided with a bone storage part. The device has the advantages that the sawing effect is good, the bone harvester can be positioned, skidding phenomenon is not caused easily during sawing, the surface of ilium is not scratched easily, the bone harvesting effect is good, the sawed bone can be quickly cut off from the ilium body and taken out, and multiple bone harvesting processes are realized without drawing out the cylindrical body.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a multipurpose bone harvesting device. Background technique [0002] During orthopedic surgery, it is sometimes necessary to take cancellous bone from the patient's ilium for bone transplantation. Existing bone extractors generally include an outer cylinder for bone extraction, and incisors are arranged at the front end of the outer cylinder for bone extraction. , when the bone harvesting outer cylinder is rotated, the incisors at the front end cut the bone and make it into a cylinder, and the cut cancellous bone is accommodated in the bone cavity of the bone harvesting outer cylinder. The existing practice is to directly take out the bone harvester from the ilium. Under normal circumstances, the cylindrical cancellous bone in the outer cylinder of the bone harvester will be disconnected from the main part of the ilium. After the outer cylinder of the bone har...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/14A61B17/56
CPCA61B17/14
Inventor 郭开今焦亚桂陈宏亮焦大勇
Owner 江苏道道新医疗科技有限公司
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