Portable device for monitoring electrocardiographic signals...

Details Portable device for monitoring electrocardiographic signals... Portable device for monitoring electrocardiographic signals...

A - Human Necessities

61

B

A61B 5/05 (2006.01) A61B 5/02 (2006.01) A61N 1/08 (2006.01)

Patent

CA 2567769

Embodiments of the present invention are directed to a physiological monitoring device which is configured to record signals that reflect blood flow and/or blood pressure, and which may also record ECG signals. In one embodiment, a portable monitoring device comprises a plurality of impedance electrodes configured to be coupled to a patient's body and to generate an AC current with an electrical field to detect local electrical impedance of a portion of the patient's body encompassed by the electrical field, the local electrical impedance being a surrogate measure of local blood flow of the portion of the patient's body. At least a portion of the portable monitoring device is configured to be insertable subcutaneously into the patient's body.

Dans divers modes de réalisation, La présente invention concerne un dispositif de surveillance physiologique conçu pour enregistrer des signaux correspondant à la circulation sanguine et/ou la tension artérielle ainsi que des signaux ECG. Dans un mode de réalisation, un dispositif de surveillance portable comprend une pluralité d'électrodes d'impédance conçues pour être raccordées au corps du patient et générer un courant alternatif avec un champ électrique permettant de détecter l'impédance électrique locale d'une partie du corps du patient prise dans ledit champ électrique, l'impédance électrique locale étant une mesure connexe de la circulation sanguine locale dans cette partie du corps. Une partie au moins du dispositif de surveillance portable est conçue pour être insérée sous la peau.

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