Endoscopic imaging with indication of gravity direction

Details Endoscopic imaging with indication of gravity direction Endoscopic imaging with indication of gravity direction

A - Human Necessities

61

B

A61B 1/04 (2006.01) G02B 21/36 (2006.01) G02B 23/12 (2006.01)

Patent

CA 2541759

A method is disclosed for presenting an indicator of the upright orientation of an endoscopic image. An electronic rotation pick-up means is fixed to the housing of an endoscope. The electronic rotation pick-up means produces signals indicating rotations of the endoscope. A microprocessor uses these signals to calculate the difference between the upright image orientation and the actual image orientation. The calculation includes factors to account for endoscope roll, endoscope pitch, and endoscope viewing direction. The upright indicator is displayed on a video display device along with the endoscopic image.

La présente invention concerne une méthode de présentation d'une indication de l'orientation verticale d'une image endoscopique. Un dispositif électronique de détection de rotation est fixé au logement d'un endoscope. Ledit détecteur de rotation génère des signaux indiquant les rotations de l'endoscope. Un microprocesseur utilise ces signaux pour calculer la différence entre l'orientation verticale de l'image et l'orientation réelle de celle-ci. Les calculs comprennent les facteurs à prendre en compte pour les mouvements de roulis, de tangage et d'orientation de visionnement de l'endoscope. L'indicateur d'orientation verticale est affiché sur un appareil d'affichage vidéo avec l'image endoscopique.

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