Patent ID: 7997796
Filing Date: 2011-08-16
Classification: A61B

Abstract:
1. An intra-oral X-ray imaging arrangement, which includes a control system, a radiation source which is arranged in connection with a jointed arm construction, a sensor and a wireless image data transmission link for transmitting at least image data detected by the sensor to a device other than said sensor, a transmitter of said image data transmission link being arranged in connection with the sensor, and a receiver of said image data transmission link at least in functional connection with said device other than the sensor, wherein the imaging arrangement further includes a wireless power transmission link or said image data transmission link is arranged to function also as a wireless power transmission link, and wherein said control system of the imaging arrangement is arranged to supply the sensor with energy via said power transmission link or via said image data transmission link functioning as a power transmission link in connection with an imaging event and wherein the arrangement includes a means for transmitting a signal from the sensor as a response to the sensor and a transmitter of the power transmission link, being located within the operating range of the power transmission link, and a means for synchronising the operations of said power transmission link and radiation source (i) so that irradiation cannot be started if the control system of the imaging arrangement has no information on the receiver of the power transmission link arranged to the sensor being located within the operating range of the power transmission link or (ii) so that irradiation cannot be started before a signal has been received from the sensor that its charge level is sufficient according to a pre-set limit value in view of the power transmission speed used for performing at least one imaging event.