Electrotherapy TRIZ Cases

Parallel I/Q chopper-stabilized paths suppress out-of-band noise and reconstruct telemetry signals despite phase mismatch.

In situ DAC calibration compares source and sink currents to prevent mismatch drift, toxic buildup, and loss of stimulation accuracy.

Automatic gain control limits body-sound and wearer-voice vibrations in implanted microphones while preserving desired sound sensitivity and avoiding clipping.

A buffered level-translated switch circuit routes high-voltage pulse currents with galvanic isolation, low power use, and reduced waveform distortion.

A calibration arrangement compares p-type and n-type DAC currents to correct drift, maintain source-sink matching, and reduce toxic buildup.

Using external voltage threshold detection instead of a reed switch cuts internal current draw and extends battery life in signal generation.

Periodic reference-clock calibration corrects low-power IMD clock drift and trim error while keeping total clocking current drain below 60 nA.

Non-active bus wires are reused as parallel power paths and shields to reduce crosstalk and voltage drop in memory chip wiring.

Dynamic gain control lowers excessive self-voice and body-vibration signals in an implanted microphone while preserving desired sound sensitivity.

Calibration with dual DACs, differential amplification, and attenuation corrects offsets and non-linearity for precise low-level magnetic fields.

Different voltage-dependent oscillator frequencies expose short supply disturbances quickly, helping secure circuits block manipulation and data exposure.

A dual ring oscillator detects foldover as frequency drops past a voltage threshold, helping regulators stop unsafe scaling and save power.

SMR resonators with Bragg reflectors replace bulky SAW and FBAR filters in implant RF telemetry, cutting size, loss, and manufacturing complexity.

Phase-shifted pulses power retinal biochip regions in turn, matching refractory timing to raise solar-cell output efficiency and protect eye structure.

A comparator and toggle-disable circuit verifies authorized OMC sources before enabling power, blocking unsupported attachments.

Porous dielectric powder and auxiliary electrodes create pulsating high voltage for stable corona discharge and higher negative ion concentration.

Applying external voltage to selected terminals replaces reed-switch control, reducing internal current draw and preserving battery life.

A conductive metallic layer and LEDs combine phototherapy with TENS, EMS, RF, and galvanic treatment in one wearable format.

Patient activity profiles let neurostimulation programs adjust and reschedule automatically, improving therapy timing and reducing side effects.

Frequency tuning keeps voltage constant to adjust skin sensation, enabling effective EMS and heating with less discomfort for sensitive users.

Actual battery draw is compared with projected usage to flag early depletion from seal breaches, faulty circuitry, or software faults.

Actuated sensors and an inflatable chest body reduce torso air gaps and acoustic noise, improving lung sound capture for personalized mucus therapy.

A symmetric charge-balanced AC waveform avoids rectified DC discomfort while sustaining neural entrainment for anxiety, depression, and insomnia.

Disease-specific vagus nerve pulse patterns treat inflammation and glucose disorders while avoiding implant surgery risks.

MRI-based electric field modeling and machine learning personalize brain stimulation dosing to improve treatment consistency across patients.

Combining Peltier heating and cooling with pulse electrodes, this case shows how one massager delivers alternating thermal massage and passive muscle exercise.

Electrode voltage feedback adjusts stimulation and recovery currents to limit residual charge during high-frequency neural stimulation.

A sealed adapter links cardiac devices to heart wires, enabling ambulatory pacing while maintaining stable electrical contact and blocking fluid entry.

Counter electrode current triggers the implant sensing circuit only after implantation, cutting standby power, parts count, and shelf-life loss.

Insulated planar conductive regions create localized evanescent fields in tissue while limiting direct current, side effects, and bulky RF setups.

Alternating cold compress cooling with micro-current and RF stimulation reduces skin heating discomfort while improving firming and pore-shrinking effects.

A dual-blade lateral retractor uses flat dilation, 360-degree neuromonitoring, and built-in lighting to reduce muscle and nerve damage.

Submaximal nerve stimulation enables comfortable postoperative neuromuscular monitoring while preserving early recurarization detection.

Segmented insulated coils and cooling raise magnetic flux and pulse rates for noninvasive muscle contraction with lower heat and eddy-current loss.

Varying intra-burst pulse frequencies suppress pathological brain rhythms through synaptic depression while limiting disruption of normal brain activity.

A funneled insertion tool guides IPGs and wiring into thin pouches with less manual contact, lowering contamination and damage risk.

A one-step solid-phase ceramic composition enables TTF electrodes with high dielectric constant and low loss while blocking conductive current.

Encrypted and unencrypted random-number checks block unauthorized wireless programmers from changing implantable medical device settings.

A convolutional encoder-decoder emulates cochlear, inner-hair-cell, and auditory-nerve processing fast enough for real-time hearing aids.

A low-energy RF pulse followed by a higher pulse lowers skin impedance to heat deeper layers while keeping the stratum corneum intact.

Activity sensing shifts therapy between normal, activity, and reduced-power modes to limit misalignment, discomfort, and wasted power.

Patient-specific electrode frequency mapping matches cochlear anatomy while handling channel limits to improve speech recognition.

Coordinated acoustic and vibrotactile stimulation suppresses synchronous neuronal activity while reducing annoying sound side effects.

Sequential multi-frequency electrical stimulation targets mutating bacteria and viruses without waiting for new drugs or vaccines.

Real-time posture and calf activity sensing estimates venous pressure and triggers NMES to reduce pooling in chronic venous insufficiency.

Combined cutaneous and subcutaneous CO2 delivery with electrical stimulation helps sustain all five regenerative phases and improve tissue repair.

A shaped actuator and linear rails turn rotary motion into controlled chest compression, reducing sudden impact injuries during CPR.

A floating piezoelectric mount isolates implantable alarm components from enclosure forces to preserve sound quality and signal reliability.

Slew-rate and amplitude thresholds help IMDs separate true cardiac events from electrode contact loss, EMI, and MRI-induced disturbances.

Conductive hermetic vias in a thin biocompatible substrate replace bulkier feedthrough parts, blocking fluid ingress in miniaturized implants.