Sensor positioning aid and method
US5372132A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1992 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | Jul 9, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/245
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sensor positioning aid includes a concavely curved transparent dish having a shape congruent with a lower surface of a sensor, and locating means on the dish for establishing external reference positions in relation to the dish. The locating means preferably includes a rim around the dish and markings on the dish. The positioning aid is placed at a selected location on the head, and the sensor is aligned to the head by aligning it to the rim of the positioning aid. The positioning aid is removed, and the head translated in relation to the sensor to place it closely adjacent to the sensor, without reorienting the sensor. The placement aid is removed and measurements are taken using the sensor. If necessary, the sensor is thereafter reoriented by reference to the markings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.