Scanning mechanisms for imaging probe

A - Human Necessities – 61 – B

Patent

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Details

A61B 1/045 (2006.01) A61B 1/07 (2006.01) A61B 8/12 (2006.01) G01D 5/347 (2006.01)

Patent

CA 2675619

The present invention provides scanning mechanisms for imaging probes using for imaging mammalian tissues and structures using high resolution imaging, including high frequency ultrasound and/or optical coherence tomography. The imaging probes include adjustable rotational drive mechanism for imparting rotational motion to an imaging assembly containing either optical or ultrasound transducers which emit energy into the surrounding area. The imaging assembly includes a scanning mechanism having including a movable member configured to deliver the energy beam along a path out of said elongate hollow shaft at a variable angle with respect to said longitudinal axis to give forward and side viewing capability of the imaging assembly. The movable member is mounted in such a way that the variable angle is a function of the angular velocity of the imaging assembly.

La présente invention concerne des mécanismes de balayage destinés à l'utilisation de sondes d'imagerie pour l'imagerie de structures et de tissus de mammifères qui utilisent une imagerie à haute résolution, y compris la tomographie à ultrasons haute fréquence et/ou par cohérence optique. Les sondes d'imagerie incluent un mécanisme d'entraînement rotatif réglable destiné à transmettre un mouvement rotatif à un ensemble d'imagerie contenant des transducteurs optiques ou ultrasonores qui émettent une énergie dans la zone environnante. L'ensemble d'imagerie inclut un mécanisme de balayage comportant un élément mobile configuré pour délivrer le faisceau d'énergie le long d'un chemin situé hors dudit arbre creux allongé suivant un angle variable par rapport au dit axe longitudinal pour donner une capacité de visualisation vers l'avant et latérale de l'ensemble d'imagerie. L'élément mobile est monté de telle sorte que l'angle variable est fonction de la vitesse angulaire de l'ensemble d'imagerie.

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