Patent ID: 6163724
Filing Date: 2000-12-19
Classification: A61N

Abstract:
A sense amplifier system including electrical circuits implemented in an implantable pulse generating device to identify and process evoked response signals based on post-pace polarization signals, the sense amplifier system comprising:at least one lead electrode having a positive and negative polarity;a pre-amp circuit;a peak tracking circuit;a band-pass filter circuit;a rectifier circuit;a comparator circuit;a digital blanking/masking/processing circuit; anda microprocessor coupled to said pre-amp circuit;said pair of lead electrodes being positioned to sense said evoked response signals and being operably connected to said digital blanking circuit via said pre-amp circuit, said peak tracking circuit, said band pass filter circuit, said rectifier circuit and said comparator circuit to thereby yield a detectable bit for identification and processing by the microprocessor.