Title:
PACEMAKER DEVICE WITH IMPROVED ELECTRIC SIGNAL DETECTING FUNCTION
Document Type and Number:
Japanese Patent JPH08215322
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve the efficiency and robust of a detection system of a pacemaker device by a method wherein a intracardiac heart signal undergoes a non-straight noise filtering and then, an adaptive filtering to generate a specified output value. SOLUTION: IKEKG (intracardiac EKG) as electrical signal is supplied to an adaptive non-straight neuron noise filter AF1 through the input side of a detector. Then, instantaneously, a modeling of a nozzle pulse is performed to optimize a corresponding weight and filter coefficient and a signal DS overlapped with a noise pulse is outputted to an optimization filter MF. A correlation with an expected signal pattern is performed. Only when a corresponding QRS compound signal is detected, a higher value is set and adjusted and a short trigger pulse 15 is sent out to the output side of the detector to be utilized for a pulse of a pacemaker device pulse or suppression.
Inventors:
BUERUNAA EMU ESU HAUPUTOMAN
Application Number:
JP32328795A
Publication Date:
August 27, 1996
Filing Date:
December 12, 1995
Export Citation:
Assignee:
PACESETTER AB
International Classes:
A61B5/366; A61N1/368; A61N1/365; A61N1/37; G06F17/00; H03H21/00; (IPC1-7): A61N1/365
Attorney, Agent or Firm:
Toshio Yano (3 outside)