Method for locally incremental flexibly forming metal fixing bone plate and bending and twisting forming tool

Abstract

The invention discloses a method for locally incremental flexibly forming a metal fixing bone plate and a bending and twisting forming tool. The forming method adopts a three-dimensional model reconstruction technology to obtain a three-dimensional CAD digital model of a fractured injured position of a pet, and the bending and twisting forming tool is intelligently controlled to complete the locally incremental forming of the fixing bone plate to realize the automatic integrated flexible forming of the metal fixing bone plate; and the bending and twisting forming tool comprises a fixing body,the fixing body is symmetrically connected with a left forming body and a right forming body, and the left forming body and the fixing body are connected through a spherical connecting block and the right forming body and the fixing body are connected by a spherical connecting block; the left forming body and the right forming body are provided with notches capable of passing through the bone plate. The metal fixing bone plate is more suitable for being attached to the bone at the fractured injured position than the manual adjustment, the function of two hand tools is realized by the bending and twisting forming tool, and the efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of advanced material forming, and in particular relates to a method for local incremental flexible forming of a metal fixing bone plate and a bending and twisting forming tool. Background technique [0002] In order to relieve the pressure of life and obtain spiritual comfort, the feeding scale of small pets has gradually increased, which has led to the continuous growth of the pet medical market. Fractures are a common condition in pet medical care. Usually, the treatment of fractures requires the use of PRCL (Point-contact Reconstruction Compression Locking) locking bone plates for fixation. Screws are then implanted to keep them close to the bone. The surface of the injured bone is a space curved surface with a complex profile, so different bone plates with complex profiles are required for fixation for different injured bones. In the traditional way, this kind of bone plate needs to be manually adjuste...

AI Technical Summary

Problems solved by technology

In the traditional way, this type of bone plate needs to be manually adjusted to achieve three types of deformations: in-plane bending, bending, and torsion to fit the injured bone. On the one hand, the three types of deformation require at least two types of tools (each type of tool requires two tools to work at the same time) for adjustment, and the efficiency is low

[0003] Flexible forming technologies such as single-point progressive forming and multi-point forming based on advanced numerical control technology have been applied in one-time and personalized human medical customization such as ankle orthoses and skull repairs (among them, the bone used in ankle orthoses The plate is a non-porous light plate, and the bone plate used for skull repair is a small-hole mesh plate), but it has not been used in pet fracture treatment, mainly because the bone plate used in pet fracture treatment is in a thin strip shape, approximately one-dimensional structure, and the mesh is large (used For implanting screws), at present, flexible forming technologies such as single-point progressive forming and multi-point forming are difficult to be directly applied to the treatment of pet fractures.

Images