Patient motion monitoring system for proton therapy

Details Patient motion monitoring system for proton therapy Patient motion monitoring system for proton therapy

A - Human Necessities

61

N

A61N 5/00 (2006.01) A61N 5/10 (2006.01)

Patent

CA 2365838

A patient motion monitoring system (102) for use in a proton therapy center (100) is disclosed. The patient monitoring system (102) includes a plurality of position detector assemblies (162) with each position detector assembly (162) being constructed of a flexibly rigid support arm (132) attached to a position sensor (130). Each support arm (132) of the plurality of position detector assemblies (162) is detachably mounted to a supporting structure so as to allow the corresponding position sensor (130) to be positioned adjacent a patient (104) who is receiving proton therapy. Furthermore, each position sensor (130) of the plurality of position detector assemblies (162) generates a position signal that is indicative of the distance between a front surface of the position sensor, and an adjacent surface of the patient. The patient motion monitoring system (102) further includes a controller (160) which is adapted to receive each position signal from the plurality of position detector assemblies (162), a display (144), and an alarm (148) to indicate if a patient has moved out of position.

Cette invention concerne un système de surveillance des mouvements du patient (102) pour centre de thérapie protonique (100). Ce système de surveillance (102) comprend une pluralité d'ensembles de détection de position (162) composés chacun d'un bras support moyennement rigide (132) fixé à un détecteur de position (130). Chacun des bras supports (132) des ensembles de détection de position (162) est monté amovible sur une structure porteuse pour que le détecteur de position (130) correspondant puisse être placé contre le patient (104). De plus, chacun des détecteurs de position (130) des ensembles de détection (162) émet un signal de position renseignant sur la distance entre une surface frontale du détecteur et une surface adjacente du corps du patient. En outre, le système de surveillance des mouvements du patient (102) comprend une unité de commande (160) conçue pour recevoir chacun des signaux de position en provenance des divers ensembles de détection de position (162), un affichage (144) et une alarme (148) qui se déclenche si le patient a changé de position.

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