Patent ID: 6734893
Filing Date: 2004-05-11
Classification: A61B

Abstract:
An endoscopy illumination system for supplying an illumination light for endoscopy purposes with a light-emitting element and an electronic control unit comprising:(a) a light-emitting element, being detachable, connected to said electronic control unit and detachably attached to the tip of an elongated part insertable into a human body comprising an endoscope, a tip-mounted CCD or CMOS camera, said light-emitting element being directed to the object of examination, said light-emitting element comprising light emitting diodes over-modulatable in a pulsed mode, and said pulses comprising frequency-associated pulses for stroboscopy use; (b) an electronic control unit comprising: (ba) a movement-detection circuit for detecting a movement of an object of examination from signals supplied from an external source comprising microphone-related signals or electroglottography-related signals, said movement detection circuit being attached to or integrated within said electronic control unit, where said movement-related signals are further processed; (bb) a delay circuit integrated within said electronic control unit, delaying pulses in a pulsed trigger signal with a controlable phase delay from 0Â° to 360Â° in relation to the movements of the object of examination, said delayed pulse trigger signal directly or indirectly activating said light-emitting element, comprising pulsed flashing modes for stroboscopy, for example to illuminate for â€˜motionlessâ€™ phase-locked or â€˜slow-motionâ€™ imaging C.