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Assembly tool used for bone nail

A technology of bone nails and holding parts, applied in the direction of nails, application, U-shaped nails, etc., can solve the problems of slippage, inconvenience for doctors, and difficult removal of bone nails, etc., to achieve the effect of ensuring stable force and reliable assembly

Inactive Publication Date: 2018-09-14
SHENZHEN CORLIBER SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in clinical operations, since the strength of the improved absorbable material itself is still low compared with metal, it is easy to cause slippery wires during use.
Once a slip occurs, it will be difficult for the doctor to remove the failed bone nail, which brings inconvenience to the doctor

Method used

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  • Assembly tool used for bone nail
  • Assembly tool used for bone nail
  • Assembly tool used for bone nail

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Experimental program
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Embodiment Construction

[0028] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the same reference numerals are given to the same components, and repeated descriptions are omitted. In addition, the drawings are only schematic diagrams, and the ratio of dimensions between components, the shape of components, and the like may be different from the actual ones.

[0029] It should be noted that the terms "comprising" and "having" and any variations thereof in the present invention, such as a process, method, system, product or device that includes or has a series of steps or units, are not necessarily limited to the clearly listed instead, may include or have other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

[0030] figure 1 It is a schematic diagram showing the state when the fitting tool for the bone screw according to the embodiment of the presen...

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Abstract

The invention provides an assembly tool used for a bone nail. The bone nail is equipped with a perforating hole and multiple grooves which are arranged along the length direction. The assembly tool comprises a holding part, multiple support feet and a positioning column. The multiple support feet are arranged along the length direction of the holding part in the manner of extending from the holding part. The multiple support feet are distributed on the outer periphery of the holding part and match the multiple grooves of the bone nail. The positioning column is arranged between all the supportfeet along the length direction of the holding part in the manner of extending from the holding part. Additionally, the positioning column can be nested into the perforating hole of the bone nail. Along the radial direction of the bone nail, the thicknesses of the support feet are no bigger than the depths of the grooves. Through the holding part, the multiple support feet arranged by the holdingpart and the positioning column, the multiple superhot feet and the positioning column are nested into corresponding parts of the bone nail. Therefore, the bone nail is stably stressed. Problems arising from inhibition of the assembly tool such as sliding screws of the bone nail and breakage of the bone nail are avoided. Therefore, the assembly tool is used for reliably assembling the bone nail.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an assembly tool for bone nails. Background technique [0002] In daily life, cruciate ligament injury is one of the common sports injuries. The tear of the cruciate ligament will directly affect the patient's ability to exercise. Improper treatment will lead to instability of the knee joint, secondary articular cartilage damage, and ultimately affect the function of the knee joint. At present, cruciate ligament reconstruction using bone nails under arthroscopy is one of the main treatment methods for cruciate ligament injuries. The tendon is fixed in the bone tunnel through bone nails to ensure the healing of the tendon and prevent the tendon from moving in the bone tunnel and causing the tunnel to expand. [0003] The earliest clinical use was non-absorbable metal bone nails. The advantages of metal bone nails are high material strength and firm fixation. However, metal b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/064A61B90/00
CPCA61B17/0642A61B90/08A61B2090/08021A61B2017/00831A61B2017/0648
Inventor 王玉珏赵金忠蒋佳孙杨
Owner SHENZHEN CORLIBER SCI
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