Transvascular Endocardial Electrodes TRIZ Cases

Temporary water-soluble coatings on catheter liners reduce bond angles, facilitating air bubble evacuation from the lumen during medical procedures.

Diagonally spaced electrodes on an intravenous lead create diverse electrical field vectors to resolve limited stimulation efficacy in coronary vasculature.

A flared catheter inner surface accommodates pacemaker retrieval misalignment while a spring-biased capture member and vacuum source facilitate disengagement.

Segmenting the conducting arrangement into a proximal coil and tapered distal section reduces insertion diameter while maintaining MRI compatibility.

An electro-anatomical model simulates the mammalian His bundle to facilitate pacing lead implantation training.

A retrieval tool guide establishes a radial offset between its distal opening and the catheter receptacle to facilitate device snaring.

Segmented test ranges on a multi-pole left ventricular lead reduce time required to identify capture thresholds while maintaining measurement accuracy.

A medical device controller processes accelerometer and chemical sensor signals to determine patient posture.

Anchoring members feature compound curved structures that shift between delivery and deployed configurations for secure attachment.

A buckling catheter sidewall aligns its distal opening with an implanted pacemaker, resolving MRI compatibility and retrieval difficulty.

A cardiac lead with a continuously deflectable distal tip navigates coronary sinus branches, resolving steerability limits in flexible leads.

Segmented tips with inward radiused edges cut fibrotic tissue while preventing lead wrap, avoiding expensive laser equipment.

Magnetic transducers on opposite sides of a catheter joint measure deflection to prevent tissue perforation from excessive pressure.

A downsized left ventricular lead uses a fixed helical anchor to provide stable fixation in the coronary sinus.

A pivotable arm intrudes into a channel to frictionally abut an electrical lead, securing the cable within the anchor body.

A modified DVI pacemaker adjusts pacing intervals to prevent atrial tachycardia.

Sputtered porous platinum-iridium coatings boost electrochemical capacitance while minimizing catalytic side effects and iridium oxidation.

A leadless pacemaker uses pressure sensors to determine optimal pacing intervals.

An implantable medical device switches between multiple wireless communication modes to maintain reliable data transfer.

A coronary stimulation lead uses a sliding microcable secured by a coupling mechanism to establish reliable electrical connections.

A bipolar stimulation system uses an intravascular catheter and an extracorporeal electrode patch to generate a robust electric field for phrenic nerve activation.

A steerable guide wire assembly uses an actuator to apply differential push-pull forces on segmented wire portions for precise distal deflection.

A torque limiter mechanism restricts radial force transmission to prevent tissue damage during leadless medical device anchoring.

Longitudinal compression of a defibrillation coil section reduces peak MRI heating by ensuring circumferential contact between adjacent turns.

A segmented implant delivered via the coronary sinus reduces mitral annular circumference without compressing the adjacent coronary artery.

An integrated sheath on a cardiac lead folds back under tensile force to separate from scar tissue, reducing extraction risk.

A helical fixation member features a chisel tip facing the center axis to pierce tissue along the lead advancement path.

A control circuit selects threshold test modes using shared or independent sensing electrodes to determine minimum pacing energy.

Frequency modulation during the pulse width achieves targeted cardiac depolarization while minimizing extraneous skeletal muscle activation.

A pacing lead conversion tool constrains the connector pin relative to the lead body using friction fits within a central lumen.

A leadless pacemaker uses a piezoelectric device on its housing to generate electrical energy from heart pressure changes.

An electrically floating heat spreader conducts thermal energy away from a resonant inductor, preventing RF-induced heating at the header assembly.

A leadless pacemaker transmits diagnostic data through body tissue using conductive pulses selected from multiple electrode subsets.

A cardiac device switches left ventricular pacing modes to match changing conduction paths.

An implantable medical device uses a lead in the internal thoracic vein for atrial sensing and communicates with a leadless pacemaker.

Tines with preset curvatures enable secure tissue penetration and easy retrieval, resolving the trade-off between reliable fixation and device removal.

A multi-site pacing system uses heart sound detection to optimize electrode configuration and timing for cardiac resynchronization therapy.

Implantable hydrophones isolate targeted cardiac sounds from physiological noise interference to improve detection precision.

A torque limiter couples a delivery catheter to a leadless capsule, preventing tissue damage from excessive rotation during cardiac anchoring.

A leadless pacing device deploys a helical tip to anchor directly into cardiac tissue via a specialized delivery catheter.

A segmented cardiac lead combines defibrillation electrodes with a flexible distal section for precise left bundle branch pacing.

A telescopic microcatheter system adjusts electrode positions within the coronary venous network to optimize cardiac stimulation.

A helically wound wire fixation element secures electrodes in tortuous coronary veins, enabling precise left ventricular pacing while minimizing tissue damage.

A medical electrode uses a thick porous tantalum or iridium coating on a base metal substrate to deliver electrical stimulation.

Outer shaft adjusts electrode depth to enable dual chamber pacing while reducing tissue ingrowth and clotting risks.

Radially symmetric electrode placement on a flexible catheter maintains stable tissue contact, resolving navigability versus precision trade-offs.

A virtual sports gaming system simulates live events using real-time data feeds to display authentic competitive outcomes.

A pulse voltage regulator switches to direct supply coupling during RF interference.

Dynamic catheter curvature improves snare orientation in complex anatomy, reducing total retrieval time.