Repairing tool for articular cartilage injuries

A technology for articular cartilage and tooling, applied in the field of medical devices, can solve problems such as removing a part of the articular cartilage, and achieve the effect of reducing the probability of removing normal cartilage tissue

Active Publication Date: 2019-10-18
NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the surgical planer is driven by a motor to rotate at a high speed to remove the corresponding tissue. It is generally used to remove calcified cartilage in the repair of articular cartilage damage. The disadvantage of the prior art is that the cut

Method used

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  • Repairing tool for articular cartilage injuries
  • Repairing tool for articular cartilage injuries
  • Repairing tool for articular cartilage injuries

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Embodiment Construction

[0035] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] like Figure 1-11 As shown, a repair tool for articular cartilage damage provided by an embodiment of the present invention includes a rod 1, the rod 1 includes a first section 1.1 and a second section 1.2, and the first section 1.1 is used to receive Driven by rotation, the end of the second section 1.2 is provided with a spherical head 1.21, and also includes an annular elastic sleeve 2, the end of the first section 1.1, the annular elastic sleeve 2 and the end of the second section 1.2 in sequence Socketing; the frictional resistance between the annular elastic sleeve 2 and the first section 1.1 is set within a preset range, when the resistance between the annular elastic sleeve 2 and the first section 1.1 is greater than the Within a ...

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Abstract

The invention discloses a repairing tool for articular cartilage injuries. The repairing tool comprises a rod piece, the rod piece comprises a first section and a second section, the first section isused for receiving rotation driving, the end of the second section is provided with a spherical head, the repairing tool further comprises an annular elastic cover, and the end of the first section, the annular elastic cover and the end of the second section are sleeved in sequence; friction resistance between the annular elastic cover and the first section is set to be within a preset range, andwhen the resistance between the annular elastic cover and the first section is larger than the preset range, the portion between the annular elastic cover and the first section is idle. According to the repairing tool for the articular cartilage injuries, the two ends and middle of the rod piece are connected through the annular elastic cover, when the resistance is large, the annular elastic cover decouples transmission, in this way, through reasonable pressure selection, the spherical head can get rid of injured cartilages, and gets stuck when meeting normal cartilages, and thus the probability that normal cartilage tissue is gotten rid of is lowered.

Description

technical field [0001] The invention relates to a medical device, in particular to a repair tool for articular cartilage damage. Background technique [0002] According to the statistics of the World Health Organization (WHO), there are currently 400 million people in the world suffering from joint diseases, of which more than 100 million are estimated to be in my country. At present, according to the degree of injury, the treatment methods for joint diseases include bone marrow stimulation, mosaic Plastic surgery, autologous chondrocyte transplantation, allogeneic chondrocyte transplantation, tissue engineering technology, artificial joint transplantation, etc. Patents such as CN20562191U, CN108201632A, CN108201635A, CN108478871A such as the authorized announcement number / application publication number all provide such treatment methods. [0003] In the prior art, no matter which of the above-mentioned treatment methods, it is necessary to clean up the diseased tissue on th...

Claims

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Application Information

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IPC IPC(8): A61B17/32A61B17/16
CPCA61B17/1659A61B17/32A61B2017/320008
Inventor 孟嘉包倪荣王一村孙文爽江辉袁涛钱洪李寅翠薛凯文张宇曹青刚赵建宁
Owner NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A
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