Catheter TRIZ Cases

Braid wires in multi-arm catheters transmit electrical signals from distal electrodes, eliminating extra cabling to maintain minimal probe diameter.

A catheter core wire with ultrasound-driven longitudinal and transverse displacement capabilities.

Resolves irregular cardiac activation mapping by computing local conduction velocities from intersecting position and LAT planes without stable reference.

A sensing apparatus merges light-emitting, light-receiving, and image sensors to detect reflected signals for physiological data acquisition.

A mushroom-shaped axial electrode delivers ablation energy via a rounded head and stem structure.

Laser fiber rings resect damaged valve leaflets, reducing embolization risk during TAVR.

Automated MRR computation separates microvascular disease assessment from epicardial stenosis, resolving operator dependency.

Flexible extension shields catheter root from contamination while distributing leverage forces to prevent occlusion.

A multi-electrode catheter assembly integrates mapping and ablation electrodes on a flexible support member to detect tissue signals.

Segmenting the capsule body with a heat insulation part reduces heat exchange between low-temperature fluid and blood, maintaining atrial temperature stability.

Automated forced oscillation system quantifies respiratory impedance variability to predict acute airway events in patients.

Segmented shaft toggles between straight and angled configurations via tensioning band to enhance surgical instrument maneuverability.

A medical device with a pivotable handle and drive wire captures kidney stones efficiently.

Distributed dispensing holes along segmented lumens prevent tissue encapsulation blockage, extending operational life for reliable analyte sensing.

A catheter connection hub uses coaxial rotation to transition between unlocked and locked states for secure fluid coupling.

An automatic spring mechanism drives the lancet axially to ensure sterile single-use operation and prevents accidental needle sticks.

Segmented electrode assemblies with conductive gel enable continuous physiological monitoring while reducing skin irritation from prolonged wear.

A catheter with inflatable balloons and electrodes measures sphincter cross-sectional area to guide surgical wrapping.

Blood flow delivers a self-securing sensor to the heart, replacing invasive catheterization with continuous pressure monitoring.

A catheter thermocouple merges with the electrical feedline to serve as a pull wire for steering.

Dual drive members activate a tip guard that shields the needle cannula, resolving reliability complexity trade-offs in passive safety systems.

Reducing polarisation voltage from hundreds to few millivolts extends electrode life and enables continuous glucose monitoring.

An integral compression sleeve seals the proximal end of a valved catheter, preventing air embolism and blood loss during device access.

Segmented robotic arms navigate the urethra to resect anterior bladder tumors, resolving access limitations of rigid resectoscopes.

A locating device directs light radially through patient tissues to visualize a central venous catheter during insertion.

A tethered cryoablation handpiece uses a flexible liner to coat tissue, preventing perforation from rigid electrodes.

Optical coherence tomography monitors tissue structural density to resolve the trade-off between seal quality and device complexity.

A self-closing capping device with a living hinge mechanism automatically opens and closes medical access connectors, reducing microbial contamination risk.

Multi-wavelength ultrasound sensors enable continuous blood pressure monitoring via time-interleaved transducers.

An arch-shaped suspension system positions robotic catheters with precision using linear guide blocks.

A cryoengine generates sub-cooled supercritical nitrogen to deliver continuous flow through small diameter lumens.

A tensioner device links tibial and femoral bone cuts using collateral ligament tension to establish parallel resection surfaces.

A medical device handle uses cross-cut threads to mechanically couple a control element with pull wire mounting elements.

Single-site pulse wave analysis replaces complex dual-artery PWV testing to enable routine cardiovascular disease monitoring.

Radial contact member isolates optical pressure sensor from side stress, ensuring precise FFR measurements during vascular navigation.

A vacuum-powered collection module draws blood samples automatically.

A transdermal microneedle sensor samples tissue fluid to detect lactate concentration without invasive blood draws.

A tissue ablation probe integrates light sources and sensors to illuminate the treatment site and detect tissue properties.

Segmented shunt components allow intraoperative adjustment for patient anatomy while integrated sensors monitor blood flow to prevent thrombosis.

An EM transducer unit applies variable pressure to a skin area while measuring that pressure via an integrated sensor.

Multi-wavelength optical sensing detects blood volume to compensate for interference and maintain analyte measurement accuracy.

A sliding inner tube aligns with spaced openings in a fixed catheter sheath to measure vessel pressure at distinct locations.

Optical fibers deliver far UV-C wavelengths to disinfect indwelling medical devices, reducing nosocomial infection risks while preserving human microbiomes.

Adaptor links irrigation hose to handle support with a stop mechanism, preventing leakage and protecting hose material during cleaning.

Segmentation and preliminary action principles enable rapid, sterile calibration by mixing solid glucose with a pre-sterilized base solution at point of use.

A triggering mechanism detects electrodynamic field strength to automate analyte readings from an implanted sensor.

A tapered metallic tubular member uses a thinned wall section to enhance flexibility in medical devices.