Acoustic physiological sensor
US7479112B2 · kind B2 · utility
63Cited by
31References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2003 |
| Grant date | Jan 20, 2009 |
| Priority date | — |
| Expiry date | Dec 27, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3684
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This document describes, among other things, a body having at least one acoustically detectable property that changes in response to a change in a physiological condition, such as ischemia. The body is positioned with respect to a desired tissue region. At least one acoustic transducer is used to acoustically detect a change in physical property. In one example, the body is pH sensitive and/or ion selective. A shape or dimension of the body changes in response to pH and/or ionic concentration changes resulting from a change in an ischemia state. An indication of the physiological condition is provided to a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.