Mandibular oral cavity model with mandibular nerve canal and injection molding method

Abstract

The invention discloses a mandible oral cavity model with a mandible neural tube and an injection moulding method thereof. The mandible oral cavity model comprises soft tissue, a plurality of teeth, a lower jawbone, a tongue base and the mandible neural tube. The mandible neural tube is fixedly connected with the tongue base through a plurality of connection strengthening ribs; the tongue base, the mandible neural tube and the connection strengthening ribs integratedly form a sublingual part through a sublingual injection mold; the sublingual part and the lower jawbone integratedly form a lower jawbone sublingual combination part through a lower jawbone injection mold; the lower jawbone sublingual combination part and the soft tissue form a soft tissue plastic encapsulation part through a plastic encapsulation injection mold; and teeth are fixedly inserted in parodontium in tooth sockets respectively. The mandible oral cavity model with the mandible neural tube can fully meet the demand of clinical practice simulation; the injection moulding method thereof can improve production efficiency of the mandible oral cavity model; and under the condition of ensuring use function of a client, production efficiency can be improved to a degree that one set of mould can form 500 models within 24 hours a day.

Description

Technical field [0001] The invention relates to an oral mandibular practice model, in particular to a mandibular oral cavity model with a mandibular nerve tube and an injection molding method. Background technique [0002] The mandibular neural tube is an important feature in oral clinical treatment. Before the surgical treatment of the mandibular molars and premolars, the doctor must use various methods (mainly x-rays) to confirm the position of the mandibular neural tube before starting the operation to avoid the operation process. Invasion of the mandibular nerve tube damages the mandibular nerve and blood vessels. Therefore, most mandibular oral cavity models that simulate clinical practice require the characteristics of the mandibular neural tube. [0003] The existing mandibular nerve tube molding method of the mandibular oral cavity model is: fix the pre-formed mandibular canal shape parts in the silicone female mold, and then pour the liquid resin into the female mold, and...

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Problems solved by technology

[0003] The existing mandibular canal molding method of the mandibular oral model is: fix the preformed parts of the mandibular canal into the silicone female mold, then pour liquid resin into the female mold, and wait for curing to form. This molding method The disadvantage is that it needs to be implemented manually, the silicone mold for casting has a short service life and is expensive, the liquid resin for casting is expensive, the curing agent in it has a strong smell and is toxic, and it takes a long time to cure to stable dimensions. The mold can only produce 5 sets of models at most, so the final production efficiency is low and the production cost is high

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