RapidNAM: generative manufacturing approach of nasoalveolar molding devices for presurgical cleft lip and palate treatment
Autor: | Florian D. Güll, Andrea Rau, Franz X. Bauer, Markus Eblenkamp, Erich Wintermantel, Denys J. Loeffelbein, Klaus-Dietrich Wolff, Johannes Gattinger, M. Schönberger |
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Rok vydání: | 2017 |
Předmět: |
business.industry
Computer science Manufacturing process Cleft Lip Alveolar process Biomedical Engineering Dentistry Alveolar arch 030206 dentistry Molding (process) Cleft Palate User-Computer Interface 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure Bilateral cleft lip 030220 oncology & carcinogenesis Alveolar Process medicine Humans Treatment strategy business Envelope (motion) Fixation (histology) |
Zdroj: | Biomedical Engineering / Biomedizinische Technik. 62:407-414 |
ISSN: | 1862-278X 0013-5585 |
Popis: | Nasoalveolar molding (NAM) is an accepted treatment strategy in presurgical cleft therapy. The major drawbacks of the treatment listed in the literature relate to the time of the treatment and the coordination of the required interdisciplinary team of therapists, parents, and patients. To overcome these limitations, we present the automated RapidNAM concept that facilitates the design and manufacturing process of NAM devices, and that allows the virtual modification and subsequent manufacture of the devices in advance, with a growth prediction factor adapted to the patient’s natural growth. The RapidNAM concept involves (i) the prediction of three trajectories that envelope the fragmented alveolar segments with the goal to mimic a harmonic arch, (ii) the extrusion from the larger toward the smaller alveolar segment along the envelope curves toward the harmonic upper alveolar arch, and (iii) the generation of the NAM device with a ventilation hole, fixation pin, and fixation points for the nasal stents. A feasibility study for a vector-based approach was successfully conducted for unilateral and bilateral cleft lip and palate (CLP) patients. A comparison of the modified target models with the reference target models showed similar results. For further improvement, the number of landmarks used to modify the models was increased by a curve-based approach. |
Databáze: | OpenAIRE |
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