Novel symphysis pubis dissection bone fracture plate and design method thereof

A technology of pubic symphysis and design method, which is applied in the field of medical devices, can solve the problems of large surgical trauma, unfavorable recovery of patients, and poor stability, and achieve the effect of shortening operation time, reducing surgical trauma, and improving stability

Pending Publication Date: 2020-12-22
THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the common mechanism of Tile B1 type pelvic injury is the extrusion of the pelvis by force in the anteroposterior direction or the external rotation force of the hip joint. Under the action of external force, the pubic symphysis is separated, the upper and lower ramus of the pubic bone is fractured, and the pelvis is rotated and displaced outwards, that is, one-way Or bidirectional "turning book-like" injuries

Method used

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  • Novel symphysis pubis dissection bone fracture plate and design method thereof
  • Novel symphysis pubis dissection bone fracture plate and design method thereof
  • Novel symphysis pubis dissection bone fracture plate and design method thereof

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Embodiment 1

[0031]ReferenceFigure 1-2 , A new type of pubic symphysis anatomical bone plate, including a bone plate main body 1, characterized in that the two ends of the bone plate main body 1 are respectively connected with two bone plate arms 2, and the bone plate main body 1 has six first ellipses penetrating through it. Ordinary screw holes 4, two first circular locking screw holes 6 and one second elliptical ordinary screw hole 7 penetrate through the bone plate arm 2 respectively, and a plurality of first pre-bends are provided on the side of the bone plate arm 2 Slot 5, the side of the bone plate main body 1 is fixedly connected with a side arm structure;

[0032]Further, the side arm structure is either A-type side arm or B-type side arm;

[0033]Further, the long diameter specification of the first elliptical ordinary screw hole 4 is 6mm, and the short diameter specification is 4mm;

[0034]Further, the bone plate body 1 is slightly arched, and the width specification of the bone plate body 1 ...

Embodiment 2

[0051]ReferenceFigure 3-4The difference between this case and the real-time case 1 is that the side arm structure is a B-shaped structure, and the B-shaped side arm includes two second side arms 10 fixedly connected to the back side of the bone plate body 1. 10 is respectively penetrated with a third circular locking screw hole 11 and a fourth elliptical ordinary screw hole 12, the side of the second side arm 10 is provided with a third pre-bent groove 14;

[0052]Further, the length specification of the second side arm 10 is 12mm, the width specification is 10mm, and the thickness specification is 1.5mm. The long diameter specification of the fourth elliptical ordinary screw hole 12 is 6mm, the short diameter specification is 4mm, and the third round The diameter specification of the locking screw hole 11 is 3.5mm;

[0053]The other parts in this case are the same as those in case 1;

[0054]In this case, the vertical static analysis shows that the maximum displacement is 0.362mm, the maxim...

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Abstract

The invention discloses a novel symphysis pubis dissection bone fracture plate and a design method thereof, and relates to the field of medical apparatus and instruments. The novel symphysis pubis dissection bone fracture plate comprises a bone fracture plate main body, the two ends of the bone fracture plate main body are connected with two bone fracture plate supporting arms, six first oval common screw holes are formed in the bone fracture plate main body in a penetrating mode, two first round locking screw holes and a second oval common screw hole are formed in each bone fracture plate supporting arm in a penetrating mode, a plurality of first pre-bending grooves are formed in the side face of each bone fracture plate supporting arm, a side arm structure is fixedly connected to the side face of the bone fracture plate main body, and the bone fracture plate main body, the bone fracture plate supporting arms and side arms are integrally designed. According to the novel symphysis pubis dissection bone fracture plate and the design method thereof, the pelvis anterior ring injury can be stereoscopically fixed by means of the cooperative use of common screws and locking screws, and the fixing stability is greatly improved; and the bone fracture plate can assist the pelvis anterior ring in fracture reduction, shorten the operation time, reduce the operation wound and promote the accelerated rehabilitation of a patient through different designs of the size and the shape of the bone fracture plate.

Description

Technical field[0001]The invention relates to the field of medical equipment, in particular to a new type of pubic symphysis anatomical bone plate and a design method thereof.Background technique[0002]Tile B pelvic injury is characterized by unstable rotation, no significant displacement in the vertical direction, lateral displacement of more than 1 cm caused by rotation violence can be seen on the plain X-ray film, after clinical examination, special position X-ray plain film , CT and other examinations can be diagnosed. Rotational instability can be divided into two types: external rotation (type B1) and internal rotation (type B2). Among them, the common mechanism of Tile B1 pelvic injury is the anteroposterior violent squeezing of the pelvis or the external rotation of the hip joint. Under the action of external force, the pubic symphysis is separated, the upper and lower branches of the pubic bone are fractured, and the pelvis is rotated outwardly, that is, unidirectional. Or a...

Claims

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Application Information

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IPC IPC(8): A61B17/80
CPCA61B17/8066
Inventor 高仕长
Owner THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
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