Catheter TRIZ Cases

See how force sensors in a seat capture ballistocardiogram signals to measure aortic pulse wave

See how a medical cooling system integrates with central fluid networks, using compression, ads

See how seat-integrated force sensors capture BCG signals to measure aortic pulse wave velocity

Force sensors in a patient bed use FFT signal analysis to track breathing, heart rate, and seizures without continuous staff attendance.

Natural bio-photon detection measures blood flow without external stimulus, reducing tissue interference and enabling real-time remote monitoring.

Multiple working electrodes consume interfering substances and regenerate silver halide to improve implantable glucose sensing accuracy and life.

Multi-material 3D printing embeds open magnetic coils in ceramic bulk to improve catheter location and force sensing while enabling mass production.

A socket-surrounding ESD protective unit dissipates static charge during transport and assembly, protecting biosensors and internal circuits.

A protruding curved substrate keeps the emitter and receiver closer to the body, improving signal-to-noise ratio while lowering power use.

A dual-electrode implantable biosensor consumes interfering substances and regenerates silver halide to improve glucose accuracy and service life.

An integrated implanting device places a physiological sensor in one press, reducing assembly steps, pain, and sterile handling time.

An internal protection unit shorts sensor electrodes above a voltage threshold to block harmful current without adding bulky safety parts.

A plug-receptacle interface pierces a sterile drape to carry optical and electrical signals for PICC and CVC monitoring without contamination.

Titanium oxide and silicone resin fine particles help silicone cable sheaths resist UV-C cracking while preserving flexibility and slidability.

A shaped microwave field uses radiating, shaping, and dielectric elements to conform to irregular uterine cavities and avoid shaft heating.

Optical power delivery replaces coaxial cables in ablation antennas, boosting distal power while reducing thermal loss and burn risk.

Wing portions and slide grooves keep the insertion needle parallel during stroke, reducing oblique biosensor insertion and host discomfort.

A conductive mesh ground plane reflects RF power away from the body, extending analyte sensor antenna range without enlarging the wearable.

A disposable sleeve shields electrophysiology catheter cables from blood splatter and sterilization damage, preserving cable reuse.

Optical power and light-based signal readout enable untethered cell-scale sensors that avoid electrode motion artifacts in neural monitoring.

A switch-box safety circuit detects DC leakage from catheter amplifier circuits and cuts power immediately to protect heart electrical activity.

Flexible radiating and shaping elements conform to irregular uterine cavities, reducing cervical dilation and improving endometrial ablation coverage.

Monolithic 3D-printed coils replace manual ferrite-core assembly, enabling compact magnetic sensing for accurate catheter location and force detection.

3D-printed open magnetic coils fit narrow catheters while improving location and force sensing accuracy and reducing manufacturing defects.

Multi-material 3D printing forms coil windings, magnetic core, and insulation together to simplify fabrication of sensitive coils for narrow medical devices.

Multi-material 3D printing integrates longitudinal and transverse coils to deliver compact, sensitive catheter position and force sensing.

Electrochemical cell expansion directly drives the drug reservoir, enabling precise infusion with less sensitivity to temperature, pressure, and complex mechanics.

Cyclic measurement and replenishment voltages restore silver halide in compact biosensor electrodes, extending stable glucose monitoring with less implantation burden.

Fuses audio, scene, physiological, and vibration signals to detect in-vehicle threats and trigger timely safety responses in shared rides.

Optical power and light-based signal readout remove tethered electrodes, enabling cell-scale wireless sensing of neural and chemical signals.

Multiple electrodes remove interfering substances and regenerate silver halide to keep implantable glucose sensing accurate and stable over time.

Two working electrodes use different voltages and materials to consume interferants and improve glucose signal accuracy in biofluid sensing.

A segmented counter electrode and reagent layer reduce interference and silver halide loss for longer, more accurate continuous glucose monitoring.

Alternating measurement and replenishment voltages restore silver halide in a micro biosensor, extending CGM life without larger implants.

A second working electrode consumes electroactive interferants, helping the glucose sensing electrode deliver more accurate biofluid measurements.

Distributed counter electrodes regenerate silver halide to reduce interference, extend sensor life, and keep implanted glucose readings stable.

Cyclic replenishment voltage regenerates silver halide on the counter electrode, extending CGM stability without a larger implant.

Cyclic measurement and replenishment voltages restore silver halide in micro biosensors, extending CGM life without larger implants.

Dual BLE and NFC communication modes switch signal feed points to keep analyte data transmission stable in continuous monitoring.

Plastic stretching of ultra-thin insulated wires reduces end bending in multicore catheter cables and improves terminal processing workability.

An elastic holder and waterproof seal stabilize an implanted sensor, blocking blood reflux and liquid ingress without harming detection sensitivity.

A sealed implantable sensor holder uses a divider and blocking structure to prevent liquid ingress and blood reflux while preserving sensitivity.

A segmented holder with a blocking element and thin waterproof seal keeps an implanted sensor stable while shielding detection sensitivity from external liquids.

Periodic measurement and replenishment potentials regenerate silver halide, extending glucose biosensor life without a longer implant.

An expandable linear-spine basket with a retention hub simplifies electrode assembly and improves cardiac tissue contact for IRE ablation.

Selective dielectric removal and surface patterning raise indwelling CGM sensor sensitivity while keeping the sensor compact and insulated.

A tuned fluororesin blend and stress-strain window help heat-shrink tubes tear lengthwise while resisting bursting during diameter expansion.

A lumen-and-notch set screw secures catheter pull wires more consistently, easing inspection and reducing operator-dependent assembly variation.

A notched wrapping set screw secures catheter pull wires with simpler assembly, easier inspection, and more consistent steering performance.

Spacers on the mandrel keep internal coils aligned during extrusion, simplifying cannula production while improving wall uniformity and tip formation.

Non-crosslinked PEBA heat shrink tubing enables equal-half tearing and easy removal while still forming tight catheter bonds.

A fluororesin blend with controlled stress-strain behavior keeps tearable heat-shrink tubes from bursting during diameter expansion.

Automated removal and tray sorting move pull wire assemblies after laser welding, cutting handling damage and separating parts by joint quality.

A basket catheter uses integrated cylindrical electrodes and insulating jackets to simplify assembly and deliver precise IRE ablation with lower thermal risk.

An actuator-guided tube support keeps the blood draw catheter aligned inside the introducer to prevent deflection, kinking, and failed collection.

An integrated plunger lock simplifies CGM applicator assembly, enables automation, and prevents shipment in an inoperable state.

A dissolvable piercing tip and hardened membrane let a blunt continuous analyte sensor insert directly while reducing tissue trauma.

Automated OCT lumen morphology analysis identifies vessel borders, estimates vascular resistance, and simulates stent placement effects.

A rigid interposer with legs, wire guidance, and integrated traces cuts moisture ingress and bulk in invasive biosensors.

Opposite-direction continuum bending replaces bulky wire drives, improving flexibility, movement coverage, and miniaturization for surgical tools.

A buckle on a parallel slider securely fixes an analyte detection device, then releases it automatically to simplify installation and removal.

Preheating the MOS breath sensor from user-state signals cuts perceived test delay while avoiding continuous heating energy waste.

By holding the mold at sterilizing temperature during encapsulation, the embedded lancet needle is sterilized without damaging the plastic body.

Optical chemical sensors track creatinine, potassium, and sodium in real time to deliver personalized diet guidance without invasive sampling.

Exposed braid grooves let structural elements lock directly to the catheter shaft, improving stability, steering response, and profile consistency.

Semi-automatic master console control coordinates robotic arm pose adjustment and catheter actuation to reduce manual surgical complexity.

Windows in the polymer jacket expose the braid to lock structural elements in place, improving catheter steering without stiffness jumps.

Real-time catheter tracking registers heart motion to the beam system, improving cardiac ablation accuracy while reducing risk to nearby tissue.

A helical-groove shroud and translating slider protect the luer connection from touch contamination, lowering peritonitis risk in PD.

Spatial electrode analysis isolates common far field components across catheter electrodes to reveal cleaner local cardiac signals.

Magnetic retention, a leaf spring retraction mechanism, and a pull-tab improve sensor insertion reliability and reduce applicator mechanical failure.

A bed-anchored load cell tracks urine bag weight continuously, cutting manual checks and sending output data and alerts to caregivers.

Segmented microneedle arrays improve analyte measurement reliability while reducing skin pain, defects, and coating damage during fabrication.

Laser-cut slots, mesh drainage, and IBOA-free adhesive improve skin breathability, reduce irritation, and extend analyte sensor wear time.

A collapsible planar tip with spaced flexible circuits improves electrode contact on irregular cardiac tissue while reducing friction and breakage risk.

Microwave energy and catheter cooling create bronchial nerve lesions while keeping the mucosa below injury temperature.

Direct fluidic tip actuation moves concentric tubes near their ends to cut buckling, torsional windup, and MRI workspace limits.

A magnetic suction attachment reaches tortuous vessels faster, grips the thrombus, and enables safer retrieval with less vessel interaction.

A membrane-covered cylindrical catheter simplifies spine assembly, improves electrode alignment, and increases tissue contact for cardiac mapping and ablation.

A tube stabilization patch and adjustable garment constrain catheter pistoning and lateral motion to reduce tissue trauma and infection risk.

Integrated lock interfaces, cap features, and crush ribs improve sensor insertion accuracy while reducing premature retraction and tissue trauma.

Incremental oropharyngeal electrical stimulation quantifies sensory thresholds to diagnose dysphagia and track recovery without invasive exams.

An elastic tapered connector improves capillary tube insertion feedback, retention, and sealing to reduce leakage in small-animal blood collection.

Selective pacing around a multi-electrode catheter uses signal correlation to narrow the search area and localize VT targets with less catheter movement.

Wider electrode spacing, external coil placement, and ferrite shielding improve implantable impedance sensing in healthy tissue beyond scar tissue.

A one-way valve and plunger measure and transfer small blood volumes in a closed path, reducing overdraw, backflow, and contamination.

A dual-filter catheter captures emboli in cerebral vessels through independently controlled sheaths, simplifying deployment and retrieval.

A wavelength-sweep interlock stops unsafe laser operation, supporting deeper OCT imaging while reducing ocular hazard risk.

Thin semi-permeable membranes and enzyme loading limit diffusion lag and amperage decay for glucose monitoring up to two years.

An adhesive base and pivotable retainer stabilize catheters during movement while reducing dislodgment, skin irritation, and urethral strain.