Fabrication method for fracture fixator

Abstract

The invention discloses a fabrication method for a fracture fixator, which includes the following steps: scanning the fracture and the corresponding healthy-side part of a patient, and acquiring initial data; adopting three-dimensional software to convert the initial data into a three-dimensional model, so that a skeleton model at the fracture and the corresponding healthy-side part of the patient is obtained; utilizing the three-dimensional software to carry out a fixation analysis on the skeleton model at the fracture and design a fracture fixator model; preparing bioactive artificial bone material; converting the designed fracture fixator model into a rapid prototyping file format, and feeding the prepared bioactive artificial bone material as prototyping material into a rapid prototyping machine to produce the fracture fixator. The invention has the advantage that the rapid prototyping technique, the three-dimensional computer design and the bioactive artificial bone material are combined to fabricate degradable fracture fixators adapted to different parts and different degrees of individualized shape designs.

Description

technical field [0001] The invention belongs to the technical field of biomedical materials, and in particular relates to a method for making a fracture fixation frame. Background technique [0002] At present, there are two ways to fix the fracture site of fracture patients: external fixation and internal fixation. External fixation is splint fixation or plaster fixation. There are some problems in this method: 1. Materials such as steel plates are likely to cause rejection by the human body and cannot be fused with human tissues; 2. It is impossible to know the best shape of the required fixation frame before the operation. The fixation frame is difficult to be close to the fracture site, and the fixation is not firm enough; 3. After the patient recovers, another operation is required to remove the implanted steel plate and other fixation frames, which increases the pain of the patient. [0003] Since the rapid prototyping process was invented by Charles of 3D System Inc ...

AI Technical Summary

Problems solved by technology

[0002] At present, there are two ways to fix the fracture site of patients with fractures: external fixation and internal fixation. External fixation is splint fixation or plaster fixation. There are some problems in this method: 1. Materials such as steel plates are likely to cause rejection by the human body and cannot be fused with human tissue; 2. It is impossible to know the best shape of the required fixation frame before the operation. It is difficult for the fixation frame to be close to the fracture site, and the fixation is not stable enough; 3. After the patient recovers, another operation is required to remove the implanted steel plate and other fixation frames, which increases the pain of the patient

However, there is no report on the application of this technology to the production of fracture fixation frames.