Femoral intramedullary nail and femurutilizing the femoral intramedullary nail

A bone marrow and internal nail technology, which is applied in the field of orthopaedic internal fixation devices, can solve the problems of radiation damage to both doctors and patients, large damage to the limbs and thighs, and complicated installation operations, so as to shorten installation time, reduce installation difficulty, and operate simple and convenient. Effect

Active Publication Date: 2017-10-24
JIAOZUO XINGANG MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The self-locking device at the upper end of the intramedullary nail design has a complex structure and excessive damage to the femur of the limbs, and has no effect on the fracture.
There is also a kind of interlocking intramedullary nail. Although it has the advantages of anti-rotation and stable fixation, the structure of this nail is complicated, the installation operation is complicated, the technical requirements are high, and it needs to be operated under X-ray, which is also harmful to both doctors and patients. radiation damage

Method used

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  • Femoral intramedullary nail and femurutilizing the femoral intramedullary nail
  • Femoral intramedullary nail and femurutilizing the femoral intramedullary nail

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Embodiment Construction

[0018] Specific embodiments of the present invention will be described in further detail below based on the accompanying drawings. It should be understood that the description of the embodiments of the present invention here is not intended to limit the protection scope of the present invention.

[0019] see figure 1 and figure 2 , which is a schematic structural view of a femur 100 using a femoral intramedullary nail provided by the present invention. The femur 100 using the femoral intramedullary nail includes a femoral head 10 and a femoral intramedullary nail 20 inserted in the femoral head 10 . It should be noted that the femoral head 10 also includes many other muscle bodies, such as periosteum, bone marrow, bone, etc., and tissues attached to the bone, such as blood vessels, nerves, etc. Since it is not the focus of the present invention, it is neither described in detail nor shown in the drawings.

[0020] The femoral head 10 is a bone of a human lower leg, which ...

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Abstract

The invention relates to a femoral intramedullary nail and a femurutilizing the femoral intramedullary nail. The femur comprises a femoral head and the femoral intramedullary nail. The femoral intramedullary nail comprises a main nail, a core nail and anti-rotary blades. The main nail comprises a nail head and a nail rod. The nail head and the nail rod internally comprise a communicating hollow cavity. A free end of the nail rod comprises at least two blade guide grooves. The core rod is accommodated into the hollow cavity. Each anti-rotary blade comprises a connecting rod, at least two bearings and at least two blades. Free ends of the at least two blades are respectively accommodated into the at least two blade guide grooves. The anti-rotary blades are inserted into the femoral head. Given that the anti-rotary blades are inserted into the femoral head, there is no need to have a collimation device in vitro. In this sense, installation difficulty is lowered and installation time is shortened while fixation failure of the traditional locking mode is avoided. Safety and effectiveness are improved.

Description

technical field [0001] The invention relates to an orthopedic internal fixation device, in particular to a femoral intramedullary nail and a femur using the femoral intramedullary nail. Background technique [0002] Among the orthopedic medical devices in the prior art, there is a self-locking anti-rotation intramedullary nail, which is generally a quincunx-shaped intramedullary nail. The quincunx-shaped outer nail has a complex structure, poor anti-rotation performance, and a small application range. It is quite inconvenient to cooperate the installation and operation of the flanks of the inner nail and the outer nail. It is difficult to ensure the proper setting position of the effective locking expansion point of the inner and outer nails, so that the self-locking force is small. Sometimes the self-locking effect of the intramedullary nail is not strong. The self-locking device at the upper end of the intramedullary nail design has a complex structure and excessive dama...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/72A61B17/74
CPCA61B17/72A61B17/7233A61B17/74A61B17/744A61B2017/564
Inventor 宋合新王迎举洪念国高雁行郝攀峰宋小花
Owner JIAOZUO XINGANG MEDICAL EQUIP
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