Transvascular Endocardial Electrodes TRIZ Cases

Degraded insulating coating exposes distal cutting edge, concentrating RF energy to dissect fibrotic tissue around medical leads in fluid environments.

Titanium and diamond coatings on a cardiac lead act as a heat sink to prevent tissue damage during MRI exposure without adding complex circuits.

Pivoting covers resolve insertion force trade-offs by securing leads without migration.

Resilient arms frictionally engage terminal pins to secure cardiac leads, minimizing tissue entanglement risks.

A biostimulator uses coaxial helical fixation elements with differential axial stiffness to engage cardiac tissue securely.

A multi-filar coil on a non-conducting core raises inductance to minimize excitation heating from MRI radio-frequency fields.

Segmented catheter design with braided control lines reduces mechanical failure risk while enabling precise lesion formation.

A dual catheter neuromodulation system delivers targeted parasympathetic and sympathetic stimulation to the vasculature.

Laser-cut splice openings on a crimp connector penetrate insulation during assembly, reducing manufacturing costs and scrap from misplacement.

Ambulatory device fuses multiple physiologic signal metrics to dynamically determine optimal pacing parameters for cardiac resynchronization therapy.

A helically curved sheath shaft stabilizes electrode positioning in the heart septum.

Nested shield layers within implantable medical leads dissipate radiofrequency energy, preventing tissue heating during MRI scans.

System harvests power from cardiac signals to deliver pacing pulses, eliminating invasive transvenous leads while maintaining rhythm regulation.

A temporary pacemaker integrates an auxiliary battery and photovoltaic panel to extend operational time.

Segmented sheaths and nested deployment receptacles resolve invasiveness risks while securing accurate placement of intravascular implants.

Rotating helical anchors engage polymer-coated mesh to stabilize leads without penetrating vessel walls, enabling repositioning.

Porous microstructures trap lubricant to minimize contact area and prevent isolation failure in moving medical devices.

Rolling a coated thin sheet into a sleeve creates tubular devices with inner lubricious surfaces.

A capsule housing a tunable charge amplifier isolates circuitry from tissue growth, maintaining measurement accuracy in chronic applications.

Offset electrodes determine lead roll to correct field heterogeneities and improve localization accuracy.

Wireless recharging reduces battery volume, resolving the contradiction between device longevity and implantation ease by allowing periodic energy replenishment.

Segmented acute-angle fingers distribute traction across multiple contact points, preventing lead distortion or breakage during extraction.

A polymeric cardiac lead surface coated with a biological monolayer that recruits endothelial cells to prevent thrombus formation on left-sided implants.

An implantable medical system reconfigures therapy vectors using alternate electrodes to maintain power drain.

A steerable catheter with a sub-catheter enables telescopic extension of an intracardiac capsule for precise ventricular positioning.

Integrated sensing coils reduce lead breakage by merging magnetic field detection with pressure measurement.

A cardiac lead uses a pre-biased curved section and retaining member to position an electrode on the interatrial septum.

An active fixation member secures the lead tip within cardiac veins while the intermediary catheter resolves advancement difficulties in tortuous pathways.

An LC high-pass filter with a saturating ferromagnetic inductor protects telemetry units from MRI-induced voltages.

A collapsible coil element grips cardiac leads via elastic expansion to enable secure mechanical engagement.

Segmenting the housing from the pacing electrode via a flexible extension prevents interference with heart structures during left bundle branch pacing.

A cardiac resynchronization therapy device measures interventricular conduction delay using combined bipolar and unipolar endocardial electrogram signals.

Radially compressive forces from the elastic body member grip therapy delivery elements, preventing displacement during patient movement.

Conductive sleeve head redirects high frequency current away from the tip electrode to an energy dissipating structure.

Barrel cam mechanisms control blade rotation and extension to slice fibrous tissue, preventing jamming in scarred vascular areas.

Integrated leadless pacemaker with segmented electrodes and anchors navigates via guide wire to treat arrhythmias without cumbersome external leads.

A single lead implantable cardiac device senses electrical signals along two distinct vectors to identify qualifying heart beats.

Dual handles span a wire member that wraps around the proximal lead end, preventing lateral cable protrusion and tissue trauma during extraction.

A single-pass pacing lead delivers atrial and ventricular stimulation through four electrodes positioned for left ventricular activation.

Automated ranking of left ventricular pacing vectors using capture thresholds and hemodynamic efficacy.

Real-time impedance feedback identifies the target depth proximate the left bundle branch, preventing septal perforation during lead implantation.

Replacing ePTFE with porous polyethylene lowers processing temperature while maintaining tissue ingrowth prevention through controlled pore sizes.

Specific pulse parameters of 5-10V and 5-10 msec improve excitatory signal conduction to terminate arrhythmias while minimizing tissue damage.

Processing circuitry identifies cross-chamber capture via sensed electrical activity to adjust pacing parameters and reduce tissue trauma.

Localized protrusions on the implantable medical device housing reduce migration while providing a grip for forceps extraction.