Methods and systems for determining physiologic...

Details Methods and systems for determining physiologic... Methods and systems for determining physiologic...

A - Human Necessities

61

B

A61B 18/18 (2006.01) A61M 29/02 (2006.01)

Patent

CA 2624792

A method and apparatus for treating abnormal mucosa in the esophagus is disclosed, such that the depth of the treated tissue is controlled. The depth of ablation is controlled by monitoring the tissue impedance and/or the tissue temperature. A desired ablation depth is also achieved by controlling the energy density or power density, and the amount of time required for energy delivery. A method and apparatus is disclosed for measuring an inner diameter of a body lumen, where a balloon is inflated inside the body lumen at a fixed pressure.

L~invention divulgue un procédé et un appareil de traitement des anomalies de la muqueuse AEsophagienne permettant de vérifier l~épaisseur du tissu traité. La profondeur d~ablation est contrôlée par la surveillance de l~impédance et de la température du tissu. La profondeur d~ablation voulue est atteinte en surveillant la densité de l~énergie ou la densité de puissance, ainsi que la durée requise pour fournir l~énergie voulue. Un procédé et un appareil sont divulgués qui permettent la mesure du diamètre interne d~une lumière corporelle pendant le gonflage à une pression fixe d~un ballonnet à l~intérieur de la lumière.

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