Unreamed intramedullary nail used for treating femur fracture and having minimally invasive and supporting functions

A technique for femoral fracture and intramedullary nail, which is applied in the field of non-reaming intramedullary nails to achieve the effects of preventing nail retraction, avoiding hip shortening, and avoiding rotation

Inactive Publication Date: 2018-02-09
NANFANG HOSPITAL OF SOUTHERN MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the stable fixation of intertrochanteric fractures requires the functions of medial support and anti-rotation at the same time. The existing intramedullary nails cannot solve these two problems at the same time. Therefore, it is necessary to design an intramedullary nail with both anti-rotation and medial support Can effectively reduce the failure rate of fractures and improve the prognosis
None of the existing intramedullary nails can solve the effects of fixation stability and avoiding hip shortening at the same time

Method used

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  • Unreamed intramedullary nail used for treating femur fracture and having minimally invasive and supporting functions
  • Unreamed intramedullary nail used for treating femur fracture and having minimally invasive and supporting functions

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Embodiment Construction

[0026] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0027] Such as figure 1 and figure 2 As shown, the unreamed intramedullary nail with minimally invasive and supporting functions for treating femoral fractures includes a main nail 1, a first bone nail 21, a second bone nail 22, a third bone nail 23 and a locking nail 3;

[0028] The proximal end of one end of the main nail 1 is provided with three nail holes, which are respectively a first nail hole 11, a second nail hole 12 and a third nail hole 13;

[0029] The first bone nail 21 , the second bone nail 22 and the third bone nail 23 are respectively arranged in the first nail hole 11 , the second nail hole 12 and the third nail hole 13 ;

[0030] The second bone nail 22 and the third bone nail 23 are arranged crosswise, and the first bone nail 21, the second bone nail 22 and the third bone nail...

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Abstract

The invention discloses a unreamed intramedullary nail used for treating femur fracture and having minimally invasive and supporting functions. The nail comprises a main nail, a first bone nail, a second bone nail, a third bone nail and a locking nail; three nail holes are formed in the near end of one end of the main nail and are the first nail hole, the second nail hole and the third nail hole respectively; the first bone nail, the second bone nail and the third bone nail are arranged inside the first nail hole, the second nail hole and the third nail hole respectively; the second bone nailand the third bone nail are arranged in an intersected mode, and the first bone nail, the second bone nail and the third bone nail form a triangular stable structure; the main nail is provided with aspiral blade portion, a fourth nail hole is formed in the spiral blade portion, and the locking nail is arranged in a fourth nail hole. The nail is used for treating the femur near-end fracture and has the minimally invasive and supporting functions.

Description

technical field [0001] The invention relates to the field of orthopedic medical devices, in particular to an unreamed intramedullary nail with minimally invasive and supporting functions for treating femoral fractures. Background technique [0002] The incidence of hip fractures in the elderly is high, and the fatality rate within 1 year is about 25%. Among them, the incidence of intertrochanteric fractures accounts for 50% of hip fractures. The mainstream of its treatment is intramedullary nailing. During the operation, the main nail needs to be implanted after reaming. Reaming will increase the bleeding, and the hidden blood loss can reach 1500ml, which becomes the main factor of postoperative hemodynamic instability in the elderly. Increased postoperative mortality, while reaming can also increase the possibility of pulmonary embolism. If the intramedullary nail is inserted directly after the opening, theoretically it can effectively reduce the possibility of hidden bloo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/72A61B17/74
CPCA61B17/7241A61B17/725A61B17/744
Inventor 余斌张晟肖亮星曾浪勇
Owner NANFANG HOSPITAL OF SOUTHERN MEDICAL UNIV
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