Interface pressure measurement device
US5838244A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1996 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Oct 8, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/1036
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interface pressure measurement device, comprising a sensor comprising two sensor sheets formed from thin flexible plastic material, each sensor sheet has a sensor area having flexible conductive ink printed thereon comprising a conductive surface with an electrical lead such that when the sensor sheets touch, an electrical contact is present forming a sensor switch, and the sensor also has sensor tubing. A digital device is connected to the sensor by the sensor tubing. The digital device comprises an enclosure, a push button, pressure transducer, signal conditioning, microcontroller with processor, analog-to-digital converter, memory, clock, display, buzzer and battery/power supply wherein the processor interrupts the battery/power supply current flow to shut off the digital device after a preset time. An inflator bulb having inflator tubing is connected to the digital device by the inflator tubing such that the inflator bulb is used to manually pump air through the digital device to the sensor whereby the pressure from the air in the sensor between the sensor sheets is sensed by the pressure transducer. When the microcontroller senses the opening of the sensor switch, the micro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.