pH and CO.sub.2 sensing device and method of making the same
US4536274A · kind A · utility
69Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1983 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | Apr 18, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/4925
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A transcutaneous blood carbon dioxide sensor together with a method for making such a sensor and for making electrodes used in the sensor. The sensor comprises a palladium/palladium oxide junction type electrode and a silver/silver halide junction type electrode applied to an electrically nonconductive substrate, partially coated with an insulative dielectric and partially coated with a polymeric membrane material including a bound electrolyte, the polymeric membrane material being permeable to carbon dioxide. The Pd/PD0 electrode was made cathodic prior to terminating the electro-oxidizing conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.