Telemetering system for operating room and the like
US4356486A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1980 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Mar 24, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/903
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for telemetering data from a patient to a monitor permitting direct connection of patient's sensors and transducers to the monitor and permitting telemetering by radio or wire without requiring changes in transducer or monitor design or adjustment or calibration. A telemetering system which presents to the monitor a variable resistance identical to the varying resistance produced by a transducer at the patient. A temperature transmission channel wherein a thermistor resistance is connected in a bridge circuit which is balanced by successive trials of a set of resistors digitally selected by a counter and comparator. The code for the selected value which produces balance is transmitted to the monitor station where it is used to actuate an identical set of resistors to reproduce the input resistance value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.