Fixing device and method for fractures of anterior and posterior columns of acetabulum

A fixation device, anterior and posterior column technology, applied in the direction of the fixator, internal bone synthesis, external plate, etc., can solve the problems of limited blocking force in the square area of ​​the acetabulum, many potential complications, difficult bending and shaping, etc., to achieve postoperative Fewer potential complications, less traumatic arthritis of the hip joint, and a wide range of blocking effects

Inactive Publication Date: 2015-06-03
郭晓东
View PDF8 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a mechanical mismatch between the placement position of the steel plate and the displacement direction of the anterior and posterior column fractures, limited resistance to the quadrangular area of ​​the acetabulum, and difficulty in b...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fixing device and method for fractures of anterior and posterior columns of acetabulum
  • Fixing device and method for fractures of anterior and posterior columns of acetabulum
  • Fixing device and method for fractures of anterior and posterior columns of acetabulum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 2 As shown, the fixation device for anterior and posterior column fractures of the acetabulum according to the present invention includes: an arcuate border plate 1 and a pubic plate 2, both of which are plate-shaped structures with concavities and convexities of substantially the same thickness, made of medical stainless steel or titanium alloy become.

[0042] The arcuate edge steel plate 1 is an arc-shaped steel plate of equal width, which is bent to match the inner physiological curvature of the arcuate edge 13 . Both ends of the arcuate edge steel plate 1: one end is provided with the first screw hole D1 close to the superior pubic ramus 10 with the arcuate edge 13;

[0043] The arcuate edge steel plate 1 is provided with A hole, B hole, C hole and first screw hole D1 from outside to inside. The holes A, B and C are combined screw holes, and the first screw hole D1 is a connecting screw hole.

[0044] The side arm 3 of the posterior column is ben...

Embodiment 2

[0053] Such as image 3 As shown, the fixation device for anterior and posterior acetabular column fractures of the present invention is installed on the hip bone. The fixation devices for anterior and posterior column fractures of the acetabulum include: arcuate border plate 1 and pubic plate 2. Among them, the shapes of the arcuate border plate 1 and the pubic plate 2 are matched with the quadrangular area 9 of the acetabulum, the anterior column 7, and the posterior column 6, especially the physiological radians of the superior pubic ramus 10 and the medial surface of the arcuate border 13, and there is no need to carry out Pre-curved, easy to operate.

[0054] Referring to the physiological curvature between the inner side of the arcuate border 13 and the iliac fossa 5 , the arcuate border plate 1 is positioned on the inner side of the arcuate border 13 . Referring to the physiological radian of the inner side of the superior pubic ramus 10 , the pubic plate 2 is positio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a fixing device for fractures of anterior and posterior columns of acetabulum and a use method for the fixing device. The fixing device comprises an arcus marginalis steel plate, a pubis steel plate and a posterior column side wall, wherein the integral shape is matched with anatomical structures of the inner sides of the anterior and posterior columns of acetabulum; the arcus marginalis steel plate is matched with the structure of arcus marginalis, and extends toward fossa iliaca to form the posterior column side wall; the pubis steel plate is matched with the anatomical structure of the inner side of superior pubic ramus; a pubis side wall extends toward the upper surface of the superior pubic ramus at a position near pubic tubercle; a plurality of screw holes are formed in the arcus marginalis steel plate and the pubis steel plate; the arcus marginalis steel plate and the pubis steel plate are fixed at the acetabular dissection positions by planting screws. According to the fixing device and the method disclosed by the invention, the fractures of the upper parts of the anterior and posterior columns and a quadrilateral area of acetabulum can be stably fixed, so the quality of fracture reduction and internal fixation is improved.

Description

technical field [0001] The invention relates to the field of orthopedic medical instruments, more specifically, it relates to a fixation device for fractures of the anterior and posterior columns of the acetabulum. The invention also relates to the use method of the fixing device, which solves the technical problem of how to fix the fracture of the anterior and posterior columns of the acetabulum. Background technique [0002] Acetabular comminuted fractures have always been a difficult problem in trauma orthopedic treatment. The acetabulum is supported by an anterior column and a posterior column in an inverted "Y" shape. The two columns hug the acetabulum like a cradle and meet on the medial side to form the medial wall of the acetabulum, the quadrilateral area of ​​the acetabulum, also known as the narrow third Column, the role is to prevent the medial displacement of the hip joint. The purpose of acetabular surgery or non-surgical treatment is to restore the concentric...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61B17/80
CPCA61B17/80A61B17/8066
Inventor 郭晓东
Owner 郭晓东
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap