Multifunctional 3D printing internal fixation plate used for pelvic bone repair and preparation method thereof

Abstract

The invention relates to a multifunctional 3D printing internal fixation plate used for pelvic bone repair, and relates to the field of medical instruments. The structure comprises a main body portion, a hollow filling block, fixing holes, an acetabular bone graft portion and an extension plate. The main body portion and the extension plate are respectively provided with a plurality of fixing holes, the left part of the main body portion is connected to the hollow filling block, the bottom of the main body portion is connected to the left side of the acetabular bone graft portion, and the right side of the acetabular bone graft portion is connected to the top of the extension plate. A preparation method of the invention is capable of scanning to obtain CT images, establishing an integratedinternal fixation plate model, 3D-printing internal fixation plates, and coating with a bio-coating. The multifunctional 3D printing internal fixation plate used for pelvic bone repair integrates aninternal fixation plate, a surgical guide plate and a bone grafting function, and can achieve the effects of positioning, bone setting and bone grafting simultaneously. The hollow part can realize bone grafting function and promote the healing of fracture, bone crack and bone tissue defect. The preparation method of the invention can create the internal fixation plate.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a multifunctional 3D printed bone plate for pelvis repair and a manufacturing method thereof. Background technique [0002] Bone plate refers to the internal fixation device for plate-shaped fractures with holes. Clinically, it is often used in conjunction with bone screws or bone wires. The existing bone plates are all in the shape of a straight plate, such as the metal bone plate for osteosynthesis implants specified in the YY0017-2008 standard. In this standard, there are two types of metal bone plates: straight and special-shaped, but no matter what type it is The metal bone plate is in the shape of a plate and is in a plane. [0003] For skeletal problems such as pelvic fractures, bone cracks, and bone tissue defects, internal fixation is generally used at present, and bone plates are used as treatment tools. The doctor judges the patient's injury through X-rays, and then s...

AI Technical Summary

Problems solved by technology

The commercially available bone plate is a general-purpose bone plate, and its shape is generally a straight plate. During the operation, the doctor needs to position it according to experience, and temporarily bend it manually according to the shape of the patient's bone. The positioning is inaccurate; or the bone plate is broken due to excessive bending, resulting in waste of resources; or the shape of the patient's bone cannot be adapted after bending, which affects the treatment effect, and in severe cases leads to operation failure and secondary injury to the patient

In addition, the medical devices currently on the market have a single function, and corresponding medical devices are required for each function. For example, the implantation of autologous bone fragments requires additional fixation devices, and the operation steps are complicated and the operation time is long.

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