Pulse oximetry sensor
US5339810A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 1993 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | May 3, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6838
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An oximetry sensor constructed including first and second opposed shell members for engaging the opposite sides of a patient's finger. A coupler releasably connects a pair of LEDs to the first member for projecting light through the finger and a light detector is mounted on the other member for detecting unabsorbed light transmitting through the finger. One of the shell members is mounted for sliding movement on the other for engaging the opposite sides of the patients finger and a coupler retains the shell members in position. In a first embodiment, the LED's are directly releasably coupled to the first member and in a second embodiment a fiber optic cable releasably couples the LED's to the first member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.