Femur neck side hole drainage pressure reducing hollow tension screw system

A femoral neck, hollow technology, applied in the direction of suction pumping system, suction device, internal bone synthesis, etc.

Active Publication Date: 2015-11-25
BEIJING FULE SCI & TECH DEV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the multi-screw internal fixation of femoral neck fractures in the joint capsule, the existing screws and technology can only solve the stability problem of the broken end of the fracture, but for the increase of intracapsular an...

Method used

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  • Femur neck side hole drainage pressure reducing hollow tension screw system
  • Femur neck side hole drainage pressure reducing hollow tension screw system
  • Femur neck side hole drainage pressure reducing hollow tension screw system

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Embodiment Construction

[0011] In order to make the objectives and technical solutions of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0012] Reference Figure 1 to Figure 3 As shown, the present invention provides a femoral neck side hole drainage and decompression hollow lag screw system. The femoral neck side hole drainage and decompression hollow lag screw system includes a femoral neck side hole drainage and decompression hollow lag screw 1, a single-head external negative Pressure drainage device 2 and multi-head external negative pressure drainage device 3. The left end of the femoral neck side hole drainage and decompression hollow lag screw 1 adopts a self-tapping nail head 4 design, and the outer side of the left end of the nail body is a wide pitch thread 5. The outer side of the right end is smooth and unthreaded. The left side of the right end of the nail tail 6 is a variable-diameter narrow pit...

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Abstract

The invention relates to a femur neck side hole drainage pressure reducing hollow tension screw system, in particular to a system used for femur neck fracture and femoral head osteonecrosis, and belongs to the field of medical appliances. The femur neck side hole drainage pressure reducing hollow tension screw system is applicable to bone surgeries, and comprises a femur neck side hole drainage pressure reducing hollow tension screw (1), a single-head external connection negative pressure drainage device (2) and a multi-head external connection negative pressure drainage device (3), wherein drainage pressure reducing side holes (11) are uniformly distributed in the screw body part of the femur neck side hole drainage pressure reducing hollow tension screw (1) and are communicated with a screw body hollow tubular structure (10); a threaded hole (9) formed inside the right side of the screw tail of the femur neck side hole drainage pressure reducing hollow tension screw can be matched with external joint screw threads (12) of the single-head external connection negative pressure drainage device (2); and the external connection negative pressure drainage device is realized.

Description

Technical field [0001] The invention relates to a hollow lag screw system for drainage and decompression of a femoral neck side hole, in particular to femoral neck fractures and femoral head necrosis, belongs to the field of medical instruments and is suitable for orthopedic operations. Background technique [0002] Femoral neck fractures can occur in all age groups, but it is most common in the elderly over 50 years old, and there are more women than men. Because it often occurs on the basis of osteoporosis, traumatic violence can be less severe. And young and middle-aged femoral neck fractures are often caused by greater violence. Femoral neck fractures have high disability and mortality rates, and have become one of the main threats leading to the decline in the quality of life or death of the elderly. According to the anatomical location: Many authors have divided femoral neck fractures into three types according to the anatomical location of the fracture: subhead type, tra...

Claims

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Application Information

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IPC IPC(8): A61B17/68A61B17/86A61M1/00
CPCA61B17/683A61B17/8605A61B17/863A61B17/864A61B2017/564A61M1/0023
Inventor 贾永建宋洁富荆志振闫桂花缪国帅
Owner BEIJING FULE SCI & TECH DEV
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