A Method for the Rapid Prototyping of Custom Contoured Cushions Matthew B. Parkinson and Jane E. Huggins ASME Advances in Bioengineering, 51, 2001. Decubitous ulcers (“pressure sores”) are a significant concern for people using wheelchairs. In fact, results published by the University of Kansas [1] indicate that over half of those using wheelchairs will develop a pressure sore at some point. This susceptibility is due to the conditions under which these ulcers develop: shear stress and pressure work together to cut off the blood supply to the surface tissue, which subsequently dies. Heat and moisture can increase the likelihood of this necrosis and the rate at which it occurs. Although sores can develop quickly (onset can occur in as few as fifteen minutes), they may take months to heal. Appropriate seat cushion selection helps to mitigate the causative factors [2]. In particular, custom-contoured cushions (CCC) can offer dramatic improvements. Research has shown that CCC’s offer the best distribution of pressure and reduction of shear stress, reducing these factors by as much as 80% [3]. CCC’s are not commonly used, however, because the cost and time involved in design, manufacture, and delivery are prohibitive. The obstacles of cost, time, and inconvenience, can be overcome by applying masscustomization and rapid-prototyping principles to the process used to create CCC’s. This involves automating the basic steps of the process: creating an electronic representation of the seating surface and machining that surface using a computer-controlled (CNC) mill. Similar systems have been put in place to automate a variety of processes, from the creation of custom orthotics for footwear to the design and creation of impeller wheels [4]. Such a system would be capable of producing a suitable custom-contoured cushion in minutes or hours rather than weeks or months. abs2001_05

A Method for the Rapid Prototyping of Custom ...

A Method for the Rapid Prototyping of Custom Contoured Cushions ... Such a system would be capable of producing a suitable custom-contoured cushion in.

11KB Sizes 6 Downloads 212 Views

Recommend Documents

architecture for rapid prototyping of visual controllers
100ms a n d the ro b ot contro ll er h ad a perio d of 3.33ms . The w ho l e s y ...... PC. Digital camera and interface card. PC. I/O Card. Ethernet Card. Standard.

Epub Rapid Viz: A New Method for the Rapid ...
The method is not designed to help you become a master illustrator, but rather a visual thinker and communicator. Emphasizing speed and simplicity, the Rapid Viz method breaks down drawing to the essentials, teaching the fundamental techniques of gra

Lean thinking and rapid prototyping: towards a shorter ...
3D CAD models were first used for visualization ... tools and a 3D printing process; 3D model produc- .... of a description that drives rapid prototyping tools.

Rapid Urban Prototyping for Innovation Districts -
will explore a data-drive, evidence-based approach to modeling and simulating ... will gain experience with data collection, data visualization, and dynamic.

A Flow Cytometry Method for Rapid Detection and ...
was developed as an automated instrument for routine testing ... Phone: 61-2-98508157. .... a single instrument for numerous rapid microbiological assay.

rapid prototyping principles and applications pdf
Page 1 of 1. File: Rapid prototyping principles and. applications pdf. Download now. Click here if your download doesn't start automatically. Page 1 of 1.