Portable circuit and method for performing a time study and analysis of bodily characteristics
US4748562A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1986 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Sep 19, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/1473
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A portable circuit and method for performing a time study and analysis of bodily ionic characteristics as esophageal pH includes a transducer 11 for measuring pH and generating a proportional analog signal and an interface 12 for converting this signal into a representative digital signal including offset and gain controls 23,24 for permitting correction for transducer 11 calibration drift during the study period. A processor 14 receives and stores all digital signals for rapid transmission to a data analysis after the study period is ended. Esophageal pH values are measured and stored for a plurality of pre-study and post-study known conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.