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Auxiliary device for intramedullary fixation of femoral intertrochanteric fracture

A technology of trochanter and auxiliary device, which is applied in the field of medical equipment, can solve the problems that the greater trochanter cannot be fixed internally, the fixation effect is poor, and the gluteus medius is displaced by the fracture.

Pending Publication Date: 2020-04-10
首都医科大学附属北京潞河医院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current internal fixation devices lack effective fixation of the greater trochanter, which may result in the failure of effective internal fixation of the greater trochanter, and postoperative complications such as fracture displacement and weakness of the gluteus medius may occur
The existing protection plates for the greater trochanter are mainly fixed by means of ordinary locking plates, which do not take into account the special anatomical shape of the greater trochanter and the physiological factors of pulling multiple muscle insertion points, and the fixation effect is often poor

Method used

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  • Auxiliary device for intramedullary fixation of femoral intertrochanteric fracture
  • Auxiliary device for intramedullary fixation of femoral intertrochanteric fracture
  • Auxiliary device for intramedullary fixation of femoral intertrochanteric fracture

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention discloses an auxiliary device for intramedullary fixation of femoral intertrochanteric fracture. The auxiliary device comprises a fixation bone plate; the proximal end of the fixation bone plate is provided with a first connecting part for connecting a greater trochanter; the distal end of the fixation bone plate is provided with a second connecting part for connecting a femoral shaft; the fixation bone plate is provided with a sliding hole corresponding to a fracture intramedullary fixation device; and one end of a connecting piece passes through the sliding hole and is connected with the fracture intramedullary fixation device, wherein the boundary dimension of the other end of the connecting piece is larger than that of the sliding hole. According to the invention, the fixation bone plate and the fracture intramedullary fixation device can be connected into a whole, so that reconstruction of a femoral proximal outer side wall and the internal intramedullary fixation can be integrated, firm fixation of the greater trochanter can be realized, and failure of the intramedullary fixing device can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to an auxiliary device for intramedullary fixation of femoral intertrochanteric fractures. Background technique [0002] Intertrochanteric fractures are mainly fractures between the base of the femoral neck and the lesser trochanter, accounting for about 50% of hip fractures, and mainly occur in people with osteoporosis. Surgical internal fixation is the current gold standard in the treatment of intertrochanteric fractures, especially minimally invasive surgical fixation with intramedullary nails. However, the current internal fixation devices lack effective fixation of the greater trochanter, which may result in the failure of effective internal fixation of the greater trochanter, and postoperative complications such as fracture displacement and weakness of the gluteus medius may occur. The existing protection plates for the greater trochanter are mainly fixed by means of ...

Claims

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Application Information

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IPC IPC(8): A61B17/80A61B17/76A61B17/72
CPCA61B17/8061A61B17/72A61B17/746A61B17/744A61B2017/564
Inventor 张亚奎韩大成龙安华王雪飞
Owner 首都医科大学附属北京潞河医院
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