Intra-oral dental-image sensor system with multiple LEDS
US7891871B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2007 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Dec 1, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/4547
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to intraoral radiological dental image sensors, i.e. sensors placed in the mouth of a patient, an X-ray source being located outside the cheek of the patient in order to emit X-rays in the direction of the sensor. According to the invention, the image sensor is attached to a first end of a short electrical cable (22) of around 5 to 20 cm, a second end of which leaves the patient's mouth when the sensor is in the mouth, the second end carrying a light source (24) comprising light-emitting diodes that can be digitally modulated as a function of information coming from the sensor, the electrical cable being able to transmit an electrical control signal from the sensor to the diode for modulating the latter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.