Disposable pulse oximeter sensor
US5469845A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1993 |
| Grant date | Nov 28, 1995 |
| Priority date | — |
| Expiry date | Sep 13, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A conformable sensor which uses a flexible substrate, preferably a polyester strip is disclosed. The emitter and detector are mounted on one portion of the strip with conductive traces connecting to them. The second portion of the strip is folded over to cover the emitter and detector and traces, with openings for the emitter and detector. A conductive coating is applied to the strip to provide shielding from electromagnetic interference. Preferably, a second portion of the strip, which folds over the first portion, also has a Faraday shield covering the opening over the detector. The detector and emitter semiconductor chip die (rather than use encapsulated chips) may be mounted directly on the polyester strip so that it is in contact with one of the conductive traces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.