Heart Stimulators TRIZ Cases
- Notch Filter EMI Detection in Extra-Cardiovascular ICDs
A notch filter establishes a noise threshold for cardiac electrical signals to detect electromagnetic interference.
- Ventricular Pacemaker Rate Smoothing for Atrial Synchronization
A ventricular pacemaker schedules pacing pulses using a rate smoothing interval derived from ventricular event intervals.
- Implantable Heart Monitor Detecting Diastolic Dysfunction
An implantable heart monitor derives stroke volume from impedance measurements to track cardiac status automatically.
- Biventricular Cardiac Stimulator Automatic Switching Control
A programmable automatic switch adapts pacemaker timer control between right and left ventricular modes based on detected stability parameters.
- Leadless Pacing Device Mode Switching for Atrial Undersensing
A leadless pacing device switches between synchronous and asynchronous modes to manage heart rhythm.
- Hardware State Machine for Low-Power Cardiac Pacing
A hardware state machine executes pacing decisions via a brady table to reduce power consumption in implantable medical devices.
- CRT Pacing Mode Switching for Atrial Arrhythmia Detection
Implantable medical device switches between sequential and simultaneous CRT pacing modes to enhance atrial event sensing.
- Multi-Electrode Cardiac Resynchronization System
Multiple implanted electrodes stimulate distinct cardiac regions to resolve asynchrony and improve hemodynamic performance.
- Implantable Tachycardia Characterization Using Dominant Frequency Analysis
A system analyzes electrogram dominant frequency to characterize tachycardia and guide treatment selection.
- Acoustically Triggered Therapy Delivery for Cardiac Resynchronization
An implantable medical device system uses acoustic trigger signals to synchronize pacing pulses across heart chambers without physical leads.
- Ambulatory Medical Device Location-Based Mode Switching
Geographic location triggers ambulatory medical device mode transitions, reducing battery drain while maintaining clinical data availability.
- Wearable Tremor Device with Dissipating Stimulus Area
A wearable device uses sensors to detect tremors and deliver electrical stimulation through a dissipating portion that expands the effective stimulus area.
- Intracardiac Pacemaker Atrial Tracking via Motion Sensor
A motion sensor detects atrial systolic events in an intracardiac ventricular pacemaker to enable synchronized pacing.
- Cardiac Pacing Therapy for Diastolic Heart Failure
Cardiac pacing therapy slows the base heart rate below intrinsic levels to improve left ventricular filling and cardiac output.
- Leadless Pacemaker Respiration-Phase Modulation
A leadless pacemaker adjusts pacing rates based on detected respiration phases using integrated impedance sensors.
- Heart Sound Metrics for Conduction System Pacing
Controller circuit generates heart sound metrics from electrostimulation to select optimal pacing locations.
- Paired PESP Pacing for Contractility Disequilibrium
Independent interpulse intervals in paired postextrasystolic potentiation pacing rebalance weakened and intact ventricle contractilities.
- Implantable Cardiac Monitor Safe Heart Rate Zone
An implantable cardiac monitoring system maintains a safe heart rate zone to alert clinicians and patients when limits are exceeded.
- Renal Nerve Neuromodulation System for Reversible Hypertension Treatment
A renal nerve neuromodulation system delivers adjustable electrical pulses to modulate nerve branches.
- Selective Heart Pacing Using AV Delay Sub-Space Analysis
An implantable device measures AV delays and physiological parameters to generate decision support for selective pacing.
- Overmolded Electronics Module Hermetic Sealing
Depositing a conformal metallic layer over potting material achieves hermetic sealing, reducing device volume and extending battery life in leadless implants.
- Dynamic Safety Margin Algorithm for Cardiac Pacing
A cardiac pacing algorithm dynamically adjusts safety margins based on historical capture threshold variability to conserve battery energy.
- Neurostimulation Therapy Optimization via Session Log
Clinician programmer records patient ratings to organize effective neurostimulation programs, reducing trial-and-error programming time.
- Implantable Vagus Nerve Neurostimulator with Helical Electrodes
Implantable vagus nerve neurostimulator delivers bi-directional electrical stimulation through helical electrodes to modulate autonomic nervous system activity.