Auxiliary device in intramedullary nail internal fixation operation

An auxiliary device, intramedullary nail technology, applied in the direction of internal fixator, surgery, fixator, etc., can solve the problem of difficult positioning of the nail entry point, the inability of the spiral blade to be accurately placed in the femoral neck at one time, etc.

Active Publication Date: 2018-01-02
高开拓
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide an auxiliary device in the intramedullary nail internal fixation operation to solve the difficulty in positioning the nail entry point of the PFNA in the internal fixation operation of the PFNA insertion device in the prior art, and the helical blade cannot be accurately positioned at one time. Problems with placement in the femoral neck

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  • Auxiliary device in intramedullary nail internal fixation operation
  • Auxiliary device in intramedullary nail internal fixation operation
  • Auxiliary device in intramedullary nail internal fixation operation

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Embodiment Construction

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention discloses an auxiliary device for intramedullary nail internal fixation, relates to the technical field of orthopedic minimally invasive surgical instruments, and solves the difficulty in positioning the nail entry point of PFNA with the existing insertion device, and the helical blade cannot be accurately inserted into the femur at one time. Problems in the neck. The auxiliary device in the intramedullary nail internal fixation operation of the present invention comprises: a positioning guide base plate and a guide wire positioning guide mechanism connected by a positioning rod assembly; The position of the inserted PFNA corresponds up and down, and the positioning guide substrate can be used to preliminarily determine the insertion position, depth, and diameter of the PFNA; the guide pin positioning guide mechanism can be used to further accurately determine the insertion position and depth of the PFNA and the helical blade; positioning The rod assembly can be used to adjust the insertion direction of the helical blade. The invention is mainly used in closed reduction and PFNA internal fixation treatment of femoral intertrochanteric fracture.

Description

technical field [0001] The invention relates to the technical field of orthopedic minimally invasive surgical instruments, in particular to an auxiliary device for intramedullary nail internal fixation. Background technique [0002] The incidence of intertrochanteric fractures accounts for about 3% to 4% of all fractures and about 35.7% of adult hip fractures. Population aging and osteoporosis are the main reasons for the high incidence of intertrochanteric fractures. With the development of population aging, the treatment of intertrochanteric fractures faces great challenges. [0003] At present, intramedullary nailing is commonly used in the treatment of femoral intertrochanteric fractures due to the uniform loading of the intramedullary nail, more reasonable mechanics, percutaneous operation, and less blood loss. Proxmial femoral nail antirotation (PFNA) is a new type of intramedullary nail, which is increasingly used because of its advantages of high fixation strength,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/90A61B17/72A61B17/76
CPCA61B17/72A61B17/74A61B17/88A61B2017/564A61B17/90
Inventor 高开拓毕荣修周松赵强
Owner 高开拓
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