Sensor material for use in detection of electrically conductive fluids
US5790036A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Sep 17, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus for detecting the presence of electrically conductive fluids, including urine and other body fluids such as exudate from wounds, includes a pair of spaced-apart electrodes covered by absorbent material, together with a housing containing a signaling device which produces a palpable vibration, a sound, a light, or a radio signal when fluid in the absorbent material provides a conductive path between the electrodes. Spring contacts on the housing provide reliable connections with the electrodes and also serve to attach the housing of the signaling device to structure supporting the absorbent material, and may also be used to attach the absorbent material to the housing in embodiments where the housing is otherwise supported. Disposable sensing pad material which is comfortably soft and flexible can be produced in indefinite lengths with moisture-previous outer layers and an inner layer of absorbent thermally-weldable material. Encoded signals from many such sensors can be identifiably related to and recorded so as to be machine-retrievable together with other patient data and analyzed statistically by a computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.