Control device and system for controlling an actuated prosthesis
US7867284B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Nov 11, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/7685
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and a control system are used for determining a portion of locomotion and a phase of locomotion portion in view of controlling an actuated prosthesis in real time. The method comprises receiving a data signal from a plurality of main artificial proprioceptors, obtaining a first and a second derivative signal for each data signal, obtaining a third derivative signal for at least one of the data signals, using a set of first state machines to select one state among a plurality of possible states for each artificial proprioceptor with the corresponding data and derivative signals, generating the phase of locomotion portion using the states of the main artificial proprioceptors; and using a second state machine to select the portion of locomotion among a plurality of possible portions of locomotion using events associated to the data signals. It is particularly well adapted for an actuated, above-knee leg prosthesis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.