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Internal fixator of interamedullary nail jined with steel plate

A fixation device and intramedullary nail technology, applied in the field of bone trauma fixation devices, can solve problems such as inapplicability and inability to treat intercondylar comminuted fractures, and achieve the benefits of recovery and maintenance, early joint movement, and good mechanical stability. Effect

Inactive Publication Date: 2002-01-09
苏继承 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Experimental and clinical results show that the retrograde interlocking intramedullary nail has achieved good curative effect, but it cannot be applied to cases of comminuted intercondylar fractures of the femur and distal end, because there is no device for treating comminuted intercondylar fractures

Method used

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  • Internal fixator of interamedullary nail jined with steel plate
  • Internal fixator of interamedullary nail jined with steel plate
  • Internal fixator of interamedullary nail jined with steel plate

Examples

Experimental program
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Embodiment Construction

[0008] Specific implementation of intramedullary nail combined with plate internal fixation device (see figure 1 , 2 ), the proximal end and the distal end of the retrograde interlocking intramedullary nail 2 are respectively provided with two threaded holes, the middle of the locking nail 3 is threaded, and the locking nail 3 passes through the threaded holes of the femur 1 and the intramedullary nail 2 to lock, and lock The nail 3 passes through the femoral condyle 6 and is locked with the threaded screw hole of the intramedullary nail 2, and two inverted ","-shaped condyle steel plates 4 and 4 are fixed between the two sides of the femoral condyle 6 and the caps of the locking nails 3 and 5. The shape matches the shape of the femoral condyle, the locking nail 5 passes through two inverted "," shaped condyle plates 4 and is locked with the femoral condyle 6, and the two inverted "," shaped condyle plates leave locking nail holes 7 for standby (see figure 2 ).

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Abstract

An internal fixator of intramedullary nail joined with steel plate is disclosed. Said intramedullary nail has two screw holes at its near and far ends. A locking nail has spiral thread and is matched with said two screw holes of intramedullary nail for locking them together after it passes through femur, femur condyle and two steel plate. Its advantages include good mechanical stability, high effect on preventing shift between fractural bone segments, and promoting healing.

Description

1. Technical field [0001] The invention relates to the technical field of bone trauma fixation devices, in particular to an intramedullary nail combined with a steel plate internal fixation device for the treatment of comminuted fractures of the distal end of the femur and intercondyle. 2. Background technology [0002] At present, distal femoral fractures and intercondylar comminuted fractures are serious injuries that are difficult to treat, and the incidence of complications such as nonunion, delayed union, and functional limitation of the knee joint is relatively high. According to clinical data reports, the incidence of nonunion of distal femoral fractures is as high as 20%. In recent years, due to the development and application of AO technology and new internal fixation materials, the incidence of distal femoral nonunion has decreased. The retrograde interlocking intramedullary nail of AO technology is a commonly used device for the treatment of distal femoral fractu...

Claims

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Application Information

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IPC IPC(8): A61B17/68
Inventor 齐涛苏继承吴强李沁芬孙淑芳
Owner 苏继承
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