PubMed · 11441816
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
D M Carlton. 2000. Computer technology in dentistry.. https://pubmed.ncbi.nlm.nih.gov/11441816/
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
As a test of the applicability of modern bioengineering tools to pediatric surgery, we developed by computer-aided design (CAD) methods and evaluated a virtual reality (VR) model of laparoscopic pyloromyotomy (LP) and created a set of retractable hook instruments, called Pylorohooks. Our VR model of LP incorporated the infant's body wall, stomach, and hypertrophied pylorus as well as laparoscopic cannulas and two Pylorohooks. CAD software was used to design the 3-mm-diameter, retractable, double-pronged, minimally-traumatic hook instrument. A rapid prototype processor was employed to create a plastic model of the instrument. Surgical-grade stainless-steel prototypes were then manufactured and used in actual LPs. A working VR model was achieved. Following an initial correction in the angulation of the hooks, the instruments were successfully employed in nine consecutive LPs in infants weighing from 3.4 to 5.7 kg. VR and CAD thus proved instrumental in the development of a new LP approach. Because of increasing pressure to limit human and animal experimentation, computer-based bioengineering methods offer promising alternatives that are clearly applicable to pediatric surgery.
This paper describes a case study of a control system design for a batch pharmaceutical process. The ISA standard S88.01 batch control models and terminology were used as the main guidelines for the implementation. As the S88 is not a guide for how to apply the definitions/structures, etc., one of the main goals of our work was to create a methodology for decomposition of functional requirements in terms of S88 models and structures. This methodology was tested on a real problem, described in the case study. Also presented are some remarks on project methodology and Food and Drug Administration validation.
Explore the source record for details and available documents.