Heart Stimulators TRIZ Cases

Transformers, capacitors, diodes, and inductors suppress induced currents during pulsed electric field cardiac ablation.

A detachable coupling forms a hermetic seal and fluid path, allowing gas-charge replacement without discarding the electrode base.

Multiple detectors and state switching balance atrial tracking reliability with power use to support AV synchrony in leadless pacemakers.

This ambulatory ECG approach integrates local driven grounds at each electrode to improve signal quality during continuous wear.

An intracardiac pacemaker uses motion-sensor metrics to switch atrial tracking and help prevent ventricular tachycardia.

This case uses VDD and supplementary pacing modes, VV delays, and hysteresis to manage atrial detection interference.

Multiple probe parameters are compared across time scales to identify implant lead failures and alert clinicians with fewer false alarms.

This case uses signal amplitudes and noise criteria to withhold tachyarrhythmia detection and therapy when EMI corrupts cardiac sensing.

External electrodes and threshold-based filtering isolate disturbances, enabling cleaner cardiac signals and more accurate activation times.

Clinician adjudication teaches episode algorithms to reduce false alerts and focus review on critical arrhythmia events.

Noise-baseline sensing and tiered preamble searches address signal variability when decoding conductive telemetry from multiple implants.

Multiple electrode signals use differential, sum, and pulse-width analysis to distinguish pacing pulses from ECG noise.

Noise baselines, tiered advertisement searches, and CRC framing improve conductive communication with multiple implantable devices.

The control circuit detects T-wave alternans and alternates ATP timing to target the excitable gap during ventricular tachycardia.

Weak atrial signals are separated into sub-windows to exclude contamination and guide more reliable ventricular pacing.

Spinal electrical activity and statistical modeling tailor stimulation intensity as posture changes, reducing noise and discomfort.

This case uses rate smoothing and post-sense intervals to limit abrupt ventricular rate changes during atrial-synchronous pacing.

Threshold crossings locate and remove cardiac signal disturbances, reducing false activation times for more precise therapy configuration.

The implantable system senses valid cardiac events and times diaphragm stimulation to improve filling and contraction without symptoms.

Universal connectors bridge permanent and temporary pacemaker wires for flexible compatibility.

ECG feedback and intrinsic search pacing help WCDs deliver transcutaneous therapy only when the patient's heart rate requires it.

A pulse sequence with at least 20% frequency deceleration helps terminate arrhythmias while reducing electrical energy and tissue damage.

Combine cardiac and impedance signals to monitor fluid status with less power.

CPRC adjusts cardiac pacing to respiratory pressure changes, helping break the cardiopulmonary cycle behind congestion and dyspnea.

This case uses sensor-guided pacing protocols to stimulate atrial and nearby autonomic tissues in drug-resistant hypertension.

Periodic vagus stimulation pauses during bradycardia and resumes with partial doses.

This case uses measured blood pressure to adapt subthreshold and supra-threshold right atrial stimuli for resistant hypertension.

This pacemaker case uses interval thresholds and AV delay adjustment to detect blanking-period tachycardia and reduce patient discomfort.

AA-interval variation triggers atrial messages only when needed, conserving aLP power while coordinating ventricular pacing.