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Femoral intramedullary nail device

A technology of intramedullary nailing and bone marrow, which is applied in the field of orthopedic internal fixation devices, can solve the problems of fracture end rotation, separation and displacement, waste of medical resources, and increased pain for patients, so as to achieve firm fixation of fracture ends, reduce length difficulty, and facilitate operation. convenient effect

Inactive Publication Date: 2016-03-16
赵文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In some known types of intramedullary nails, due to design defects, the fracture end will often rotate and be separated and displaced during and after the operation, the broken end will be unstable, and the intramedullary nail will be cut out of the femoral head. Re-operation to solve the above problems increases the suffering of patients and wastes medical resources

Method used

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  • Femoral intramedullary nail device
  • Femoral intramedullary nail device
  • Femoral intramedullary nail device

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that representation and description of components and processes that are not related to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the ar...

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Abstract

The invention discloses a femoral intramedullary nail device which comprises a main intramedullary nail, a tension screw, an anti-spin screw and a far-end locking nail. The main intramedullary nail comprises a hollow cylindrical nail rod, one end of the nail rod is provided with nail holes, and the nail holes are matched with the tension screw and the anti-spin screw; the other end of the nail rod is provided with one or more screw holes, and the far-end locking nail penetrates through the screw holes. According to the femoral intramedullary nail device, the tension screw can achieve length change and self-locking, and meanwhile a continuous and determined sliding compression effect is achieved, so that the difficulty in measuring the length of a tension nail in a surgery is reduced, the broken end of a fractured bone is firmly fixed, and the loosing phenomenon is prevented from occurring in the surgery and after the surgery. The femoral intramedullary nail device solves the problems that rotation of the broken end of the fractured bone is instable, and the intramedullary nail is cut out of caput femoris, the broken end of the fractured bone can achieve the purpose of continuous compression both in the surgery and after the surgery, separation of the broken end of the fractured bone in the surgery and after the surgery is effectively prevented, the purpose of promoting fracture healing is achieved, and the femoral intramedullary nail device is simple in structure and convenient to operate.

Description

technical field [0001] The invention relates to an orthopedic internal fixation device, in particular to an intramedullary nail device for treating femur fractures. Background technique [0002] When the metaphysis of the femur is fractured, internal fixation is usually used to fix the broken bone. Femoral intramedullary nail is one of the internal fixation methods. The common femoral intramedullary nail consists of a lag screw placed in the femoral head. The intramedullary nail placed in the femoral medullary cavity consists of three parts, the main nail and the distal locking nail, and is usually used for intertrochanteric and subtrochanteric fractures. In some known types of intramedullary nails, due to design defects, the fracture end will often rotate and be separated and displaced during and after the operation, the broken end will be unstable, and the intramedullary nail will be cut out of the femoral head. Re-operation to solve the above problems increases the suffe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/72
CPCA61B17/7216A61B17/7233A61B2017/564
Inventor 赵文赵天禧李红芹张孜君
Owner 赵文
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