Head Electrodes TRIZ Cases

Using vascular catheter delivery and intracranial expansion, this electrode array reaches brain tissue without burr holes or craniotomy.

Alternating current between two deep brain stimulation electrodes preserves therapeutic effect while extending battery life by avoiding simultaneous supply.

HFS-evoked HFO and ECA signals guide faster, more precise brain electrode placement than trial-and-error implantation.

Detachable signal processor connectors simplify cochlear implant testing, diagnosis, and upgrades without disturbing cochlear tissue.

Continuous biomarker sensing in a hearing prosthesis predicts cochlea health changes and adjusts stimulation to help preserve residual hearing.

Wireless near-field power from an implanted battery keeps a removable cochlear earplug small while extending operation and avoiding frequent battery replacement.

Virtual CT-based implant planning interdigitates cranial and neurosurgical implants to lower extrusion risk and improve fit and cosmetic outcomes.

A flexible CMOS neural implant combines SPAD photodetectors and micro-LEDs to expand cortical imaging coverage while preserving spatial selectivity.

Adaptive brain-state modeling uses feedback and AI to tune stimulation and reduce over- or under-stimulation in traumatic brain injury.

Pre-inverted image signals from glasses-based photoreceptors help the occipital lobe process visual input with less adaptation, headache, and nausea.

EMG-guided closed-loop stimulation activates the genioglossus muscle noninvasively to keep the upper airway open and reduce OSA events.

Closely spaced electrodes create non-uniform fields for localized transfection with lower cumulative charge, reducing tissue damage.

An integrated middle-ear reservoir and electrode array improves cochlear stimulation while enabling controlled drug delivery to support hearing recovery.

MR thermometry tracks tissue heating during stimulation to infer electrode orientation despite MRI artifacts and lead movement.

Multi-frequency transcranial impedance with Hilbert-validated spectra estimates glymphatic flow during sleep without invasive neuroimaging.

Distal-end ASIC processing digitizes weak S-EEG signals at the electrode, cutting noise, wire count, and external hardware while enabling thermocoagulation.

Alternating monophasic cochlear implant pulses use charge-imbalance feedback to preserve fine time structure while maintaining safe stimulation.

A slideable implanted sheath keeps a pre-curved stimulation assembly straight during cochlear insertion, reducing trauma and preserving auditory function.

Wireless inductive powering through a removable intra-oral appliance enables reversible hypoglossal neurostimulation for OSA without CPAP burden.

A three-magnet rotatable assembly aligns with MRI fields to reduce torque and maintain cochlear implant headpiece retention through thick skin.

Patterned transpalpebral eye stimulation uses controlled waveforms and current density to improve retinal cell function with fewer side effects.

Anchored skull base sensors capture higher-quality deep brain signals without craniotomy, enabling less invasive outpatient monitoring.

An adhesive hydrogel neural interface improves selective nerve contact without continuous pressure, balancing compliance, adhesion, and signal quality.

A cranial implant cavity coils excess neurosurgical leads to reduce scalp bumps, protect wires, and simplify implantation.

A spherical contact surface and circular rim compress the eye before needle entry, reducing rotation and enabling precise single-operator electroporation.

Perforated conductive gels improve TTFields skin contact by adding airflow, reducing maceration and irritation while maintaining conductivity.

Bursted low-frequency and high-frequency electrical stimulation calms overactive neurons in acute ischemic stroke while limiting depolarization damage.

Patient-specific ML guidance predicts cochlear lead insertion speed, angle, and depth to improve placement and reduce intracochlear trauma.

Symmetrical stimulation with separate sensing electrodes enables adaptive therapy adjustment while reducing artifacts, side effects, and power use.

Variance across repeated stimulation signals reveals evoked neural potentials despite artifacts and limited bandwidth for closed-loop adjustment.

Optical pre-charging lets dark retinal implant pixels act as transient return electrodes, improving field confinement and reducing crosstalk.

A rotatable, interchangeable headpiece magnet improves cochlear implant retention while aligning safely with MRI fields.

Curved tubular needle guides part hair and align microneedles on the scalp for clearer visibility and more consistent RF penetration depth.

Moderate pulsed AC fields drive calcium uptake in tumor cells over long treatment periods while limiting thermal damage and electrostimulation.

Neural signals sensed through implantable DBS electrodes are compared with reference responses to track anesthesia depth and guide placement.

Curved tubular needle guides part hair and follow scalp contours to improve visibility and keep RF microneedle insertion depth accurate.

Real-time coil feedback adjusts cochlear stimulation current by sound frequency to improve neuron activation and extend battery life.

Multi-frequency impedance modeling and active discharge help implantable neurostimulators deliver precise therapy during MRI or EMI exposure.

Counteracting magnetically induced lead voltages helps an implantable hearing prosthesis avoid unwanted hearing perception during MRI exposure.

Cross-electrical and strain sensing in implanted tongue leads confirms stimulation response, enabling closed-loop OSA therapy with less muscle fatigue.

Color-detected frequency modulation lets a retinal stimulator add chromatic cues to monochrome prosthetic vision for better recognition and mobility.

Movement-linked signal selection lets deep brain stimulation stay within a therapeutic window, reducing side effects and power use.

Wearable inertial sensors and machine learning automate deep brain stimulation tuning to suppress tremor while minimizing power use.

Intracranial EEG segments and frequency-band power classification detect seizures during stimulation while reducing false positives.

An implant-generated electromagnetic field triggers local drug release from circulating biomaterial, raising inner-ear concentration while limiting toxicity.

ECAP and spread-of-excitation measurements estimate electrode distance to the modiolus, improving cochlear implant placement and hearing outcomes.

A retractable expandable nasal tip and shaft electrodes target turbinates and nerves precisely, reducing collateral damage and repeat repositioning.

Continuous biomarker monitoring in a hearing prosthesis predicts cochlea health changes and adjusts stimulation to preserve residual hearing.

Dual-camera image guidance aligns a guide needle with micron-scale electrode holes, enabling accurate flexible electrode implantation with less tissue damage.

Neuromodulation temporarily opens the blood-brain barrier to deliver drugs into brain tissue, then restores protection to limit side effects.