Catheter TRIZ Cases

Hilbert transformation converts filtered pulse wave data into complex numbers, resolving fluctuating indices to provide constant physiological state values.

A motion sensor detects patient breathing patterns to identify double-movement-respiration-cycle events.

Computing a tissue metabolic score from NADH fluorescence and hemoglobin data detects oxygen balance divergence to prevent organ damage.

An injectate delivery system uses real-time flow sensors to calculate volume and guide injection technique for accurate cardiac output measurement.

Segmenting the shaft from a localized soft tip reduces urethral injury risk while maintaining structural integrity during complex navigation.

Correlating dual temperature signals identifies single fault conditions, reducing system complexity while maintaining patient safety.

A catheter with a split electrode sleeve uses discrete curved electrodes to maximize tissue contact and simplify assembly.

Segmented gas analysis at exertion stage endpoints determines maximum oxygen uptake and energy metabolism while reducing test duration and subject discomfort.

Segmenting high-pressure supply into multiple outlets via a flow distribution sleeve eliminates turbulence and cavitation during tissue ablation.

A clot removal device uses a proximal flow restrictor to capture emboli during delivery.

A catheter light source projects and receives optical signals to measure intensity ratios for real-time feedback.

A hygroscopic hydrogel electrolyte within a porous framework maintains ionic contact with a reference electrode.

A deflectable catheter segment uses interlocked corrugated layers to constrain movement within a specific sweeping plane.

A sterilization chamber uses UV-C radiation arrays to disinfect reusable urinary catheters.

Processor analyzes electrophysiological signals to guide catheter orientation toward improved signal correlation.

Segmented ribs reinforce a hollow cannula, preventing kinking and buckling while preserving flexibility for navigating non-linear blood vessels.

A facial skin evaluation system predicts deep blood vessel states using age and questionnaire data.

Grid-based estimation fills scalogram wedge regions to resolve motion artifacts in photoplethysmograph signals without increasing processing complexity.

A cryosurgical system uses a control mechanism to disconnect electrical components and initiate cooling operations during MRI signal exposure.

Optical fiber glove replaces subjective palpation with precise volume estimation, resolving measurement precision and ease of operation contradictions.

External catheter markings enable accurate placement verification in a training model, eliminating continuous fluoroscopy and reducing radiation exposure.

Fluorophore-based optical sensing replaces reference electrodes in glucose monitors, extending sensor longevity and improving measurement reliability.

A rapid exchange catheter with an asymmetrical filter design captures thrombi while enabling safe percutaneous delivery and retrieval.

Linear algebraic transformations resolve non-linear field distortions during coronary sinus-based mapping, ensuring accurate heart chamber reconstruction.

Detects spatial outliers via localized kernel gradients to resolve measurement precision trade-offs in complex anatomical geometries.

A diagnostic system calculates center of electrical activity from surface sensor data to generate three-dimensional models of cardiac conduction pathways.

A catheter probe assembly uses geodesic resistance to detect reentrant electrical patterns in the heart cavity.

Controller adjusts transducer activation based on shaft temperature to prevent thermal harm during intravascular tissue ablation.

A sensor carrier with conductive contacts electrically couples analyte sensors to testing equipment.

A multi-ply laminate bandage secures catheters and luer connectors using adhesive tabs to maintain optimal insertion angles.

An optic-based catheter assembly uses an optical sensor to detect changes in reflected light from an electrode surface for contact sensing.

An ATR sensor bolus measures dissolved carbon dioxide in rumen fluid, preventing pH sensor drift and acidosis.

A kinked flexible substrate subdivides its surface into interconnected outer surfaces to support multiple electrodes.

Dual-balloon catheters enable partial circumferential ablation while preventing unnecessary structural changes to vessel walls.

Bioabsorbable barbed microcatheters anchor in tissue to distribute therapeutic fluids, eliminating removal pain and wound disruption.

Separating sensors from contrast lumens prevents interference, enabling accurate gradient measurement during high-pressure injection.

Integrated drive units reduce device complexity and sterilization challenges by coupling directly to rotatable electrodes.

Segmenting the transducer within the vessel wall maintains measurement accuracy while eliminating endothelial injury and thrombosis risks.

Multi-resolution wavelet decomposition and morphological operations modify coefficients to reconstruct clean physiological signals.

A processing system generates vector fields from cardiac activation signals to determine optimized onset times based on template similarity.

Single atrial lead combines electrical and mechanical signals via spectrum transforms to resolve ventricular versus supraventricular tachycardia discrimination.

Processing unit subtracts analog voltages from demodulated signals to detect hidden organisms and measure precise distances.

An L-shaped anchor secures a sensory implant against the atrial septum, resolving fixation stability issues during long-term cardiac pressure monitoring.

Spring-loaded hub retracts needle automatically after injection, reducing device complexity while maintaining sterile handling reliability.

Replacing metal braids with resin-fixed aramid micro-tapes eliminates MRI interference while maintaining torque transmission.

Segmented needle arrays minimize tissue trauma while ensuring diagnostic accuracy during in vivo analysis.

A catheter system estimates its own transfer function using backscattered ultrasound data for accurate vascular tissue characterization.

A context-sensitive flow interrupter blocks urine backflow via a float valve, while vents and templates prevent airlocks and maintain monotonic gradients.