Guide tube for punching of intramedullary nail and punching device

A technology for intramedullary nails and guide tubes, which is applied in the field of guide tubes and drilling devices, and can solve the problems of circumferential deflection of guide tubes, inability to maintain consistent intramedullary nail holes, and inability to lock the distal end accurately.

Inactive Publication Date: 2017-11-21
SHANGHAI MICROPORT MEDICAL (GROUP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a guide tube and a drilling device for intramedullary nail drilling, to solve the problem that the position of the existing guide tube is only axially positioned, so that during the drilling process, the guide tube will have a circumferential The deflection cannot be consistent with the intramedullary nail hole, so that the distal end cannot be locked accurately

Method used

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  • Guide tube for punching of intramedullary nail and punching device
  • Guide tube for punching of intramedullary nail and punching device
  • Guide tube for punching of intramedullary nail and punching device

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Embodiment Construction

[0028] The guide tube and drilling device for drilling intramedullary nails proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In particular, due to the different content to be highlighted in each drawing, different proportions are often adopted.

[0029] In this document, whether expressly stated or not, all numerical values ​​are assumed to be modified by the term "about". In the context of using numerical values, the term "about" generally refers to a range of values ​​that one of ordinary skill in the art would consider equivalent to the recited value (ie,...

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Abstract

The invention provides a guide tube for punching of an intramedullary nail and a punching device. The guide tube comprises a guide tube main body and a flexible bulge structure located at the far end. The punching device comprises the guide tube and a flexible drill. The flexible drill is located in the guide tube and used for penetrating through a nail hole in the intramedullary nail and then punching on a skeleton. According to the guide tube for punching of the intramedullary nail and the punching device, the nail hole can be found rapidly through the flexible bulge structure, meanwhile radial positioning is achieved, and thus the problems that an existing guide tube is only axially positioned, consequently, in the drilling process, the guide tube is deflected circumferentially and cannot keep consistent with the nail hole of the intramedullary nail, and thus the far end cannot be accurately locked are solved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a guide tube and a drilling device for drilling holes in intramedullary nails. Background technique [0002] Interlocking intramedullary nailing is a common treatment method for tubular fractures. It is to drill transverse holes in the bone marrow and insert transverse screws to lock the proximal or distal end of the fracture with the intramedullary nail to control the shortening and rotation of the fracture. Wait for the shift. Interlocking intramedullary nails are firmly fixed to avoid the occurrence of axial and rotational deformities of fractures. [0003] At present, the more common technology is intramedullary nail aiming technology. Its technical principle is that the lower end of the intramedullary nail connecting frame is fixedly connected with the intramedullary nail, the upper end of the intramedullary nail connecting frame is fixedly connected with the ri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/17A61B17/16
CPCA61B17/1725A61B17/164
Inventor 汪振姚遥耿芳李俊菲罗七一
Owner SHANGHAI MICROPORT MEDICAL (GROUP) CO LTD
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