Prosthetic simulator with soft tissue modeling
US7823460B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2006 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Feb 16, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/44
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A virtual soft tissue control system that provides enhanced motion control to a prosthetic simulator machine. The control system advantageously adds a “virtual soft tissue” control scheme to a conventional control system, such as a digital proportional integral derivative (PID) controller, to algorithmically model the soft tissue constraints that would be encountered by the prosthesis within the human body, and account for these forces in driving the simulator. In another aspect, a prosthetic simulator comprises a prosthetic drive mechanism; a feedback control system that drives the prosthetic drive mechanism; and an iterative learning control system that determines an error from a previous iteration of motion of the drive mechanism and uses the error to determine a drive signal for a subsequent iteration of motion. In certain embodiments, the prosthetic simulator uses both a soft tissue model and an iterative learning control system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.