A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
A61N 1/365 (2006.01)
Patent
CA 2328455
A cardiac pacemaker includes circuitry which receives a raw impedance signal from the sensor leads of the pacemaker, derives data from the impedance signal that is descriptive of the impedance signal over an entire (or a large part of the) cardiac cycle, develops first order parameters which define that cycle, and provides these parameters to a microprocessor for control of the pacing signal. These parameters may also be used to determine other information about the functioning of the pacemaker. The present invention may also be applied to the determination of tachycardia of an intrinsically paced heart, as well as other applications.
L'invention porte sur un stimulateur cardiaque comportant des circuits qui reçoivent un signal brut d'impédance des conducteurs de détection du stimulateur, en tirent des données représentatives dudit signal pour la totalité ou la majeure partie du cycle cardiaque, puis élaborent des paramètres de premier ordre définissant le cycle qui sont transmis à un microprocesseur pour la commande du signal de rythme. Lesdits paramètres peuvent également servir à fournir d'autres informations sur le fonctionnement du stimulateur, à déterminer la tachycardie d'un coeur intrinsèquement stimulé, et à d'autres applications.
Deno D. Curtis
Pergola Nicholas F.
Sterling Daniel I.
Vautravers Alec
Gowling Lafleur Henderson Llp
Intermedics Inc.
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