Heart Stimulators TRIZ Cases
- ATP Train Pulse Count Based on Electrogram Propagation Time
A medical device system calculates electrogram propagation time to determine the number of pulses in an anti-tachycardia pacing train.
- External Pacemaker R-Wave Verification Display
Displaying cardiac voltage curves alongside VVT mode impulses allows operators to verify R-wave detection accuracy before delivering cardioversion shocks.
- PVC Detection in Cardiac Signals Using QRS Morphology Analysis
A cardiac monitor system calculates QRS scores and correlation coefficients to identify premature ventricular contractions.
- Managed Ventricular Pacing Protocol for AV Synchrony
Managed Ventricular Pacing protocol truncates blanking periods to promote intrinsic conduction and reduce excessive ventricular pacing.
- Multi-site Ventricular Pacing Refractory Period Management
Segmented refractory periods and adaptive protective intervals prevent arrhythmias during multi-site left ventricular pacing.
- Narrative Report Generation for Ambulatory Medical Devices
A processing circuit generates narrative reports from physiologic events using predefined text rules.
- Implantable Pulse Generator Electrode Positioning via Cardiac Signal Analysis
Statistical analysis of wavefront arrival times verifies electrode placement accuracy, reducing therapy delivery delays and improving diagnostic precision.
- Implantable Pacing Protocol for Intrinsic Ventricular Conduction
Dynamic AV delay adjustment promotes intrinsic ventricular conduction while maintaining atrioventricular synchrony during rate-responsive pacing.
- Atrial Nerve Stimulation for Ventricular Dyssynchrony
Atrial nerve stimulation creates ventricular dyssynchrony, allowing the left ventricle to fill before the right and improving cardiac output.
- Dual-Chamber Pacing for HFpEF Diastolic Restoration
A dual-chamber device delivers premature left atrial stimulation pulses to restore optimal cardiac sequencing.
- Extracorporeal Pressure Sensor for dp/dt Measurement
An extracorporeal pressure sensor measures arterial pressure rate-change to assess ventricular contractility without invasive intracardiac placement.
- Gradual Synchronization of Atrial and Ventricular Pacing Pulses
Gradually synchronizing atrial and ventricular paced pulses avoids vulnerable cardiac cycle regions, reducing inappropriate therapy incidence.
- Leadless Pacing Device Atrial Contraction Detection
A leadless pacing device uses a motion sensor to detect atrial contractions for synchronized ventricular stimulation.
- Cardiac Rhythm Management System Atrial Capture Detection
Dynamic pacing energy adjustment based on real-time capture detection prevents pacemaker mediated tachyarrhythmia and reduces battery drain.
- AV Conduction Check Scheduling for Implantable Pacemakers
Dynamic scheduling of atrial-ventricular conduction checks differentiates true from false positive detections, reducing unnecessary pacing mode switches.