Wearable position or motion sensing systems or methods
US7980141B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2008 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Mar 22, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/168
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wearable system of one or more body position or motion sensors can include a flexible sensing element to be coupled to or worn on a body. When straight, the flexible sensing element defines a longitudinal axis. It includes a lumen carrying a flowable substance, such as a liquid, gas, or gel. A measurable parameter of the flowable substance, such as pressure, volume, or flow, provides an indication of a longitudinal axial bending, twisting, or elongation, such as due to movement of at least one body part to which the sensing element is coupled. The lumen is coupled to a transducer by at least one conduit for the flowable substance. The transducer converts the measurable parameter of the flowable substance into a transducer output signal indicative of the longitudinal axial bending, twisting, or elongation of the sensing element, from which body part position or movement information can be derived.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.