Fluid delivery system for hysteroscopic surgery

Details Fluid delivery system for hysteroscopic surgery Fluid delivery system for hysteroscopic surgery

A - Human Necessities

61

M

A61M 31/00 (2006.01) A61M 1/00 (2006.01) A61B 17/42 (2006.01) A61B 18/04 (2006.01) A61M 3/02 (2006.01)

Patent

CA 2186478

An open loop system for delivering fluid during hys- teroscopic surgery. The system includes first and second fluid conduits (12, 14) in fluid communication with the uter- ine cavity of a patient. First and second measuring devices (26, 28) are provided for measuring the amount of fluid flow- ing into and out of the uterus. The measuring devices (26, 28) produce electronic signals which are communicated to a controller (30) which uses them to calculate a value reflect- ing the difference in in-flow and out-flow. This difference is then compared with a preset value if the preset value is ex- ceeded, the surgeon knows the patient is absorbing too much fluid, and the procedure may be terminated.

Système d'alimentation en liquide fonctionnant en circuit ouvert pendant une intervention hystéroscopique. Ce système comprend un premier et un deuxième conduit de liquide en communication fluide avec la cavité utérine de la patiente. Un premier et un deuxième dispositif de mesure servent à mesurer la quantité de liquide pénétrant dans l'utérus et en sortant. Ces dispositifs produisent des signaux électroniques transmis à une unité de contrôle qui les utilise afin de calculer une valeur réfléchissant la différence entre l'entrée et la sortie de l'écoulement. Cette différence est ensuite comparée à une valeur prédéterminée; si la valeur prédéterminée est dépassée, le chirurgien est informé que la patiente absorbe trop de liquide et il peut mettre fin à l'intervention.

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