Heart Stimulators TRIZ Cases
- Vagal Stimulation Synchronization for Ventricular Arrhythmia
A control module synchronizes vagal electrical stimulation with cardiac activity to treat ventricular arrhythmias.
- Wireless Recharging Leadless Pacemaker Battery
A rechargeable battery in a leadless pacemaker receives electromagnetic energy from an external transmitter via an implanted antenna.
- Wireless Pacemaker Using RF Microwave Coupling
RF microwave activated sensors transmit pacing charges through the skin to eliminate surgical complications from lead perforation and infection.
- Implantable Medical Device Pacing Pulse Detection and Blanking
A pace pulse detector identifies pacing signals to blank interference in sensed electrical data.
- Cardiac Resynchronization Therapy with Nested Endocardial-Epicardial Electrodes
Nested endocardial electrodes within an epicardial lead enable coordinated ventricular activation that mimics natural heart physiology.
- Optical Tissue Oxygenation Monitoring for Heart Failure Therapy
An optical sensor measures tissue oxygen saturation to evaluate heart failure therapy effectiveness.
- His-bundle pacing system with left-ventricular backup
His-bundle pacing system delivers concurrent left ventricular pulses to resolve dyssynchrony from conventional right ventricular apex pacing.
- Leadless Pacemaker Patient Device Secure Communication
A patient device splits communication control into an immutable security component and an updatable service interface.
- Implant System Wake-Up Device Power Mode Switching
A wake-up device switches an implant system between deep sleep and active modes using timer counts or external energy supply.
- Predictive Battery Service for Implantable Pulse-Count Therapy
A programmer proposes therapy parameters with known energy consumption to automatically determine a predicted elective service date for the power source.
- Elastically Deformable Base for Capsule Energy Harvesting
An elastically deformable base allows a medical capsule housing to move relative to the cardiac wall, enabling seismic mass energy harvesting.
- Implantable Device Clock Calibration via Telemetry Downlink
Periodic calibration routines adjust a low-power oscillator using an accurate external reference, reducing current drain below 60 nanoamperes.
- Leadless Pacemaker Conducted Communication
A leadless pacemaker delivers communication pulses through integrated electrodes to an external device.
- LV Capture Verification Algorithm for CRT Devices
Algorithm analyzes myocardial electrogram signals to verify left ventricular capture in cardiac resynchronization therapy.
- Implantable Device Unifying Cardiac and Neural Stimulation
A unified implantable device delivers both cardiac rhythm management and neural stimulation through shared hardware components.
- Sub-threshold Anodal Stimulation for Heart Failure
A sub-threshold anodal waveform strengthens cardiac contraction through membrane potential modulation.
- Cardiac Signal Validity Detection via Derivative Analysis
Derivative analysis filters artifacts from cardiac signals, improving depolarization detection accuracy without increasing processing complexity.
- Cross-Chamber Cardiac Capture Detection
Multi-chamber cardiac capture detection uses cross-chamber sensing during refractory periods to verify pacing pulse effectiveness.
- Cardiac Rhythm Management Device Extracardiac Capture Detection
Implantable medical device detects extracardiac capture via cardiac electrical signal analysis.
- Cardiac Pacing Mode Switching via Atrial Cycle Length Detection
A control circuit detects atrial cycle length changes to switch between synchronized and asynchronous ventricular pacing modes.
- ICD Sensitivity Testing via Simulated Cardiac Event Detection
A testing apparatus simulates cardiac event identification at varied sensitivity settings to report detection performance without reprogramming the implantable device.
- Implantable Device Ischemia Threshold Determination
Implantable medical device detects myocardial ischemia by increasing pacing rate until feedback occurs, enabling precise upper rate adjustment.
- Adaptive High-Output Pacing for Heart Failure
An implantable cardiac device optimizes stimulation parameters to maximize myocardial contractility.
- Implantable Pacing Configuration Optimization via Endocardial Acceleration
An implantable device extracts characteristic parameters from endocardial acceleration signals to generate a composite index for pacing configuration selection.
- Intermittent Stress Augmentation Pacing for Cardioprotection
A cardiac pacing device switches to a stress augmentation mode to vary depolarization patterns and increase mechanical stress in myocardial regions.
- Cardiac Device Adjusting AV and VV Delays via Hemodynamic Feedback
An implantable device adjusts atrioventricular and interventricular delays using real-time hemodynamic monitoring.
- AV Interval Selection in Implantable Pacemakers
Dynamic AV interval adjustment promotes intrinsic conduction while preventing hemodynamic suboptimality.
- Far-Field Electrogram Oversensing Detection
Far-field electrograms identify oversensed cardiac events to prevent inappropriate defibrillation shocks and support bradycardia pacing.
- IMD Atrioventricular Synchrony Assessment via Far-Field Ventricular Signals
An implantable medical device calculates atrioventricular synchrony metrics using far-field ventricular event signals detected by an accelerometer.
- Battery Case Electrode for Implantable Device Noise Isolation
A battery case functions as an electrode in implantable medical devices to reduce component count and device volume.
- Cardiac Device Apnea Compensation via Hemodynamic Feedback
Implantable cardiac devices adjust stimulation parameters using intracardiac impedance measurements to estimate myocardial contractility variations.
- Intermittent High-Energy Cardiac Stimulation for Heart Failure
Intermittent high-energy stimulation mimics exercise effects by triggering neurotransmitter release, improving cardiac function in patients unable to exercise.
- Atrioventricular Interval Optimization Algorithm for CRT Devices
An algorithmic approach predicts atrioventricular intervals using inter-atrial delay and left ventricular volume measurements.
- IMD Sensing Parameter Adjustment for MRI Interference
Adjusts IMD sensing parameters to separate noise from cardiac signals.
- Intracardiac Pacemaker P-Wave Sensing via Adjustable Filtering
An intracardiac pacemaker adjusts a sensing filter to increase the difference between P-waves and T-waves in cardiac signals.