Transvascular Endocardial Electrodes TRIZ Cases

A polyimide-coated nitinol composite wire is shape-set after winding to improve flexural fatigue life while preserving electrical isolation.

Delayed impedance measurement after His bundle pacing uses R-wave timing to improve contractility sensing and physiologic stimulation.

Automatic switching between unipolar and bipolar impedance sensing improves ADC range and supports reliable His bundle pacing measurements.

Selecting a His bundle lead configuration triggers an alert so pacemaker parameters match ventricular conduction pacing and avoid unsafe settings.

A metal coating on implantable electrodes strengthens adhesive bonding to insulation, improving durability under mechanical and chemical stress.

A timed blanking interval after atrial sensing helps separate His bundle and ventricular signals, avoiding incorrect pacing inhibition.

Selective side openings in insulated wires enable flush electrode joining without cutting the conductor, improving conductivity and service life.

A metal coating on the electrode connection segment strengthens adhesive bonding to insulation and helps implantable devices withstand harsh bodily environments.

A one-piece attachment feature improves leadless pacemaker delivery and retrieval by transmitting torque precisely while reducing strain and tissue damage.

A rigid monolithic attachment feature improves leadless pacemaker delivery and retrieval by transmitting torque precisely while reducing strain and battery heat damage.

Timed blanking and separate atrial and His bundle sensing improve signal classification and prevent incorrect inhibition of His bundle pacing.

A delayed post-pulse measurement window enables impedance sensing from a His bundle electrode while preserving electrogram capture and contractility assessment.

Ball bearings integrated into the catheter tip isolate torque from linear motion, shortening rigid length for better steerability and pacemaker placement.

An integrated distal catheter bearing isolates torque from linear motion, reducing rigid length for smoother pacemaker positioning and fixation.

A swaged outer cable over an inner coil cuts wind up and unloading, improving torque transfer for accurate leadless pacemaker delivery.

Swaging an outer cable over an inner coil reduces wind up and improves torque transfer for biostimulator delivery through tortuous vessels.

A slip-based torque limiter releases built-up removal torque in leadless pacemaker retrieval, reducing device damage and tissue injury.

A two-wire implant probe bus manages electrode selection and sensor feedback to avoid inappropriate stimulation and improve pacing reliability.

Acoustic-powered septal wall stimulators anchor in the left ventricle to target bundle conduction and restore ventricular synchrony.

Real-time P-wave and QRS metrics switch pacing modes to preserve atrioventricular and ventricular synchrony as conduction disorders change.

Coronary sinus electrodes compare left and right atrial signal stability to identify flutter origin before extensive mapping, reducing risk and time.

A flexible tether and rod-tube release mechanism simplifies leadless pacemaker delivery and retrieval while avoiding complex retention tolerances.

A helix mount alignment range guides leadless biostimulator fixation to improve cardiac anchoring while reducing dislodgement and tissue damage.

Intrinsic P-wave and QRS monitoring switches pacing modes to preserve ventricular synchrony and improve heart function in multi-chamber implants.

Mode-specific communication shifts more power draw to rechargeable implants, extending non-rechargeable leadless pacing life.

Deep tines and shallow septal electrodes improve His bundle pacing precision while maintaining fixation and electric field strength.

Activity-sensing pacing adjusts heart rate to patient demand in HFpEF, improving cardiac output and exercise tolerance without fixed-rate limits.

A flexible high-density electrode array maps and ablates tissue while maintaining contact on contoured myocardium to shorten procedures.

Left-ventricular activation timing and morphology help confirm conduction system pacing, detect loss of capture, and guide stimulation adjustment.

Automated grading of pacing-induced cardiac activations replaces manual signal review to assess electrode placement reliability during mapping.

Only electrodes with sufficient tissue contact are used to build a clearer 3D heart map, reducing false walls and procedure time.

A pivotable electrode arm angles a leadless biostimulator toward the septal wall for left bundle branch pacing while reducing heart structure interference.

High-speed switching and passive filtering isolate cardiac electronics from induced currents and common-mode voltages during pulsed ablation.

Real-time traction and countertraction sensing helps keep lead extraction forces within safe limits to reduce tissue injury and lead damage.

A braided polyimide or PET liner shields the conductor from oxidation, preserving cardiac lead integrity and supporting later extraction.

Overlapping elongate electrode members increase intracardiac transducer density for more precise lesion formation and electrical mapping.

Separating the header and housing enables accurate septal electrode placement while reducing interference with heart structures and repeat attempts.

A locking docking cap and flexible grasper secure leadless pacemakers during delivery and retrieval, reducing release risk and procedure burden.

Separate header and housing delivery enables accurate left bundle branch pacing while reducing interference with nearby heart structures.

An expandable frame anchors the biostimulator outside the heart so septal wall pacing avoids structural interference and fatigue risk.

A needle-guided flexible microwire lead uses branching retention to improve heart wall contact while reducing implantation trauma.

A self-supporting sensing extension lets a leadless pacer detect cardiac activity in another chamber while avoiding lead complications.

A multi-wire coil and direct mechanical coupling reduce conductor fatigue and profile while enabling more electrodes in endovascular therapy.

A biocompatible insulator on the implant housing isolates tissue contact to prevent electrode shorting and preserve wireless communication.

A looped tether transport mechanism secures a leadless pacemaker during delivery, then releases it by pull-through to cut complexity and improve reliability.

Hook-shape side electrodes and a reinforced linking wire help maintain cardiac tissue contact for stable dual-chamber bundle pacing.

Left-ventricular activation timing and morphology help confirm conduction system pacing and guide pacing adjustment or CRT transition.

Automatic grading of pacing-induced cardiac activations cuts manual signal review and gives immediate feedback on electrode capture reliability.

Backstop filaments and a helix fixation element help a leadless cardiac biostimulator resist unscrewing, reduce dislodgement, and simplify implantation.

By combining far-field and near-field R-wave sensing, one ventricular lead can time CCM safely and also support ICD therapy.

A dedicated bypass line routes pacing signals around the DAC, enabling immediate delivery while the main path handles multiple electrocardiac signals.

Multiple secondary coils and a non-conductive hermetic housing improve wireless recharging of epicardial pacemakers while limiting tissue heating.

Spring-biased capture members expand to engage misaligned device housings, enabling secure retrieval without damaging the implant or requiring excessive force.