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Intramedullary nail special for children and use method thereof

An intramedullary nail and children's technology, which is applied in the field of intramedullary fixation devices for femoral fractures in children, can solve the problems of not being able to adapt to the characteristics of children's femoral growth plates and meet actual needs, and achieve the effects of easy alignment, convenient fixation, and convenient operation

Active Publication Date: 2021-06-08
SHANDONG PROVINCIAL HOSPITAL AFFILIATED TO SHANDONG FIRST MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The intramedullary nails in the prior art are designed for adults and cannot adapt to the characteristics of the femoral growth plate in children and cannot meet the actual needs

Method used

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  • Intramedullary nail special for children and use method thereof
  • Intramedullary nail special for children and use method thereof
  • Intramedullary nail special for children and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] As shown in Figure-7, a special intramedullary nail for children includes a nail sleeve 5 and a nail core 3. The distal end of the nail core 3 is provided with a locking hole 1. The distal end of the nail core 3 is driven into the femur 2 and passes through the femur 2. In the growth plate of the lower end, a Kirschner wire 4 or screw is inserted into the locking hole at the epiphysis 10—a screw with 6 cores 3, and the distal end of the nail sleeve 5 is driven into the medullary of the femur 2 from the greater trochanter at the proximal end of the femur to reach the metaphysis. After the growth plate 9, the nail sleeve 5 is set on the nail core 3, the proximal part of the nail sleeve 5 is placed outside the femur 2, the nail sleeve 5 is provided with a locking hole 2, and the screw 6 is driven through the skin into the locking hole 2 to lock the nail sleeve 5.

[0037] Applied to fractures of the distal femur 2 in children, it can be extended, anti-rotation, and locked,...

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Abstract

The invention discloses an intramedullary nail special for children, which comprises a nail sleeve and a nail core, the far end of the nail core is provided with a first locking hole, the far end of the nail core is driven into the femoral marrow and penetrates through the growth plate at the lower end of the femur, a kirschner wire or a screw is driven at the epiphysis to enter the first locking hole to lock the nail core, the far end of the nail sleeve is driven into the femoral marrow from the greater trochanter at the proximal end of the femur to reach the metaphysis without passing through the growth plate, the nail sleeve is sleeved on the nail core, the near end part of the nail sleeve is arranged outside the femur, a second locking hole is formed in the nail sleeve, and a screw is screwed into the second locking hole through the skin to lock the nail sleeve. The intramedullary nail is applied to the distal femoral fracture of children, can be extended, prevented from rotating and locked, and can fix the fracture and retain the normal growth function of the growth plate.

Description

technical field [0001] The invention belongs to the technical field of intramedullary fixation devices for femur fractures in children, in particular to a special intramedullary nail for children. Background technique [0002] Distal femur fracture in children is a relatively common injury in children. Due to the particularity of the growth plate in the distal femur in children, it is difficult to treat in clinical practice. [0003] The intramedullary nails in the prior art are designed for adults and cannot adapt to the characteristics of the femoral growth plate of children and cannot meet the actual needs. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a special intramedullary nail for children, which can be extended, anti-rotation, and locked, and can not only fix the fracture, but also retain the growth plate. normal growth function. [0005] A special intramedullary nail applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/72
CPCA61B17/72A61B17/7225A61B17/7283
Inventor 李天友朱立超王延宙
Owner SHANDONG PROVINCIAL HOSPITAL AFFILIATED TO SHANDONG FIRST MEDICAL UNIVERSITY
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