Catheter TRIZ Cases

A catheter device records evoked electrical and mechanical responses from the vessel wall to assess denervation completeness.

A saddle-shaped lancing tip gathers flesh toward the center to express blood through geometric pressure distribution.

A rotating cutting head catheter extends blades from a protective sheath to mechanically ablate refractory plaque.

Breathable film with a transparent window allows direct wound observation while maintaining a protective barrier against external contaminants.

A tap coupler and reflection mechanism detect optical fiber bends by monitoring reflected light power levels.

Asymmetric wire structure suppresses expansion body torsion, ensuring reliable force transmission for shunt hole enlargement.

Spatial mapping of torso-surface potential signals determines cardiac activation times, resolving narrow QRS detection gaps in CRT patient selection.

Nesting shaped printed circuit boards inside the hollow interior of an elongated shaft reduces device volume while maintaining electrical connectivity.

Optical and thermal imaging align to detect temperature asymmetry between contralateral joints for inflammation identification.

Variable wall thickness and a hemispherical distal end control product flow to minimize tissue trauma during cosmetic filler delivery.

Multi-frequency impedance analysis identifies electrochemical interference in glucose sensors by measuring charge transfer conductance and solution resistance.

Implanted tissue monitoring electrodes measure electrical impedance changes to detect anastomotic leaks in gastrointestinal surgery sites.

Polyesteramide copolymer coatings modify glucose sensor surfaces to enhance neovascularization and reduce collagen deposition.

An engaging mechanism restricts cutter rotation about the sheath axis to maintain precise tissue resection depth and direction.

Protrusion strips on the female connector engage lock ring notches to prevent over-tightening cracks and liquid leakage in medical transfusion lines.

A biological information measurement device evaluates pulse wave stability against body motion thresholds to determine valid data segments.

Segmented wire retainers and screw-driven translation resolve the trade-off between manufacturing simplicity and steering precision in steerable catheters.

Restraining members on the catheter shaft maintain consistent spline spacing during tissue contact, preventing misalignment and ensuring reliable operation.

Segmenting the coil body into fixed proximal and unfixed distal portions resolves the trade-off between structural stability and guide wire followability.

A sampling system estimates cardiac cycle phases to activate light sources only during systolic rise periods.

A variable mode pulse indicator disables or modifies pulse indications during high-noise events, preventing misinterpretation of inaccurate oximeter readings.

An exercise suit integrates soft elastomeric weights into lightweight fabric to provide full-body resistance during movement.

Matrix optical sensor arrangement compensates for physiological differences and positioning errors to ensure reliable pulse detection.

Dynamic sub-array reconfiguration resolves the contradiction between reducing switch complexity and maintaining spatial resolution in ultrasound probes.

Flexible vascular graft integrates piezoelectric elements to detect blood pressure and velocity signals directly on the substrate surface.

Non-coplanar membranes and segmented walls balance thermal expansion forces to maintain measurement accuracy in implantable sensors.

Dynamic slice orientation and RF saturation pulses suppress venous signals while maintaining arterial conspicuity.

Segmented balloon containment prevents coolant leakage while impedance monitoring detects fluid egress and optimizes lesion quality.

A diagnostic catheter assembly integrates temperature sensors with a processing console to capture physiological data.

Segmenting the cooling element inside the balloon stabilizes plaque morphology while maintaining maneuverability in small arteries.

Monitoring fluid flow rate through a uterine probe detects perforations, preventing injury to adjacent organs during ablation.

Extending the tip axially joins multiple shaft layers, preventing breakage at the boundary during vessel navigation.

Segmented components isolate the circuit board in a sealed enclosure, preventing sterilization radiation from damaging detection accuracy.

Directional antenna assembly directs microwave radiation into specific tissue volumes, minimizing damage to surrounding healthy cells during ablation.

Asymmetric thorax and leg electrodes measure impedance variations to eliminate common mode voltage and motion artifacts during abdominal breathing.

A vacuum source pulls liquid nitrogen through a probe, eliminating phasing delays and reducing setup time.

Integrated microfluidic channels move fluids via gravity and capillary forces, eliminating manual transfer steps.

A catheter strengthening element uses segmented metallic members connected by non-conductive coupling elements to transmit torque.

Expandable electrode array applies variable frequency RF energy to remodel atherosclerotic plaque tissue, avoiding mechanical trauma from balloon angioplasty.

Longitudinal emission and radial reception prevent direct light paths that falsify signals, ensuring accurate cerebral parameter measurement.

A holder with a cavity secures the catheter port while a wrench rotates the needleless connector.

Recesses on the elastic seal and ring facilitate material expulsion to minimize reflux and ensure smooth needle passage.

A prosthetic component integrates hermetically sealed electronics with a transmissive window to monitor synovial fluid parameters.

A wearable sensor system monitors physical parameters to trigger automated cognitive tests.

Thermo-conductive members cool and heat skin to boost capillary blood flow, resolving insufficient volume and lag time in alternate site glucose monitoring.

Helical multi-electrode arrays create deeper lesions while preventing overheating and vascular occlusion risks.

Undergarment with catheter slot guides tubing via slot connectors to prevent skin breakdown and leakage risks.

Dividing the release liner into separate pieces allows stepwise attachment of the adhesive layer, preventing skin wrinkles and microbacterial entry.

An integrated flow divider merges transmission line and cooling passages, reducing probe diameter while preventing overheating.