Personalized maxillofacial bone fracture plate based on 3D printing technology and manufacturing method thereof

Abstract

The invention relates to a personalized maxillofacial bone fracture plate based on a 3D printing technology. The personalized maxillofacial bone fracture plate comprises an upper bone fracture plate, a connecting plate and a lower bone fracture plate which are sequentially connected; one end of the upper bone fracture plate is vertically connected with one end of the connecting plate; one end of the lower bone fracture plate is vertically connected with the other end of the connecting plate; the upper bone fracture plate comprises one or more connecting units connected in sequence; each connecting unit comprises a fixing plate and a matching plate; one end of each fixing plate is connected with the corresponding matching plate; a fixing hole is formed in each matching plate; the end, away from the corresponding matching plate, of each fixing plate is connected with the connecting plate; and the lower bone fracture plate and the upper bone fracture plate are the same in structure. The personalized maxillofacial bone fracture plate is integrally formed, the personalized maxillofacial bone fracture plate has an anatomical surface type matched with a bone surface, an upper jawbone and a lower jawbone can be accurately fixed, and meanwhile, the manufacturing cost can be reduced, the step of bending the bone fracture plates in an operation is omitted, and adverse consequences such as metal fatigue, coating falling-off and stress concentration and the like are avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a personalized maxillofacial bone plate based on 3D printing technology and a manufacturing method thereof. Background technique [0002] Metal bone plates are widely used in maxillofacial surgery. At present, commercial titanium alloy bone plates are mainly used in clinical practice, which have the characteristics of high biocompatibility and superior mechanical properties. However, due to the irregular shape and complex anatomical structure of the maxillofacial region, the position of the jaw bone in some operations is variable and the angle is complex. In clinical practice, it is often necessary to bend the commercial bone plate to match the bone surface, but it is often Doesn't work well enough to achieve a good fit. In addition, the bent bone plate produces metal fatigue, coating peeling, and stress concentration, which leads to loosening of the bone plate, fracture...

AI Technical Summary

Problems solved by technology

However, the Ti-6Al-4V alloy has high strength, and the finished titanium plate is difficult to undergo secondary processing such as bending, which is difficult to meet the application in the field of oral and maxillofacial surgery.

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