Catheter TRIZ Cases

A body fluid analysis assembly positions a patient's finger to align a lancet and measurement strip automatically.

Nested drive and imaging shafts maintain small crossing profile while providing real-time optical coherence tomography for precise plaque removal.

A stretch-resistant thread connects directly to a conductive wire in the embolic coil conveying device.

Composite amorphous fluoroplastic membranes block saliva acid interference while maintaining rapid gas transport for accurate tissue pCO2 measurement.

Implantable device monitors intrathoracic impedance using dynamic thresholds derived from left atrial pressure and NYHA class data.

Laminated electrodes face opposite directions to prevent electrical contact during cutting, improving glucose measurement stability.

Tapered geometry maximizes bonding surface area and prevents leaks in medical fluid handling systems.

Inflatable cuff and ring secure radial sheath position during cardiac catheterization procedures.

Polymeric catheter tube maintains consistent stiffness and flexibility across varying temperatures.

Automated die heating replaces manual torch operations to eliminate operator variability and ensure consistent catheter tip geometry.

Rotating handle drives cam mechanism to retract lancet carrier, reducing charging force and simplifying assembly.

Asymmetric coupling geometry prevents misconnections in medical devices by blocking incompatible interfaces.

An integrated antimicrobial dressing combines a transparent film with an embedded antimicrobial member to secure catheters.

Lever arms pivot to surround the catheter hub, eliminating adhesive tape that causes skin excoriation.

A temperature measurement probe uses non-contact infrared sensors to map tissue heat during cardiac procedures.

Apparel integrates optical sensors with accelerometers to suppress motion harmonics, maintaining measurement precision while conserving battery life.

Replacing mechanical sensors with image processing reduces device complexity while maintaining measurement precision for cardiac ablation safety.

Anatomically shaped silicone cap prevents urethral erosion by distributing traction forces and eliminating fluid buildup under the device.

Handheld optoacoustic probe emits multi-wavelength light through fetal skull to detect acoustic pressure from blood oxygenation.

Continuous analyte sensors calculate the rate of change by applying noise detection and smoothing algorithms, enabling timely glycemic event detection.

Segmented orifice stations generate high-pressure fluid jets that penetrate deep into thrombi, reducing procedure time compared to low-pressure weeping methods.

A remotely controlled robotic system manipulates standard catheters using modular handle controllers to position medical devices within the body.

Single-operator catheter handle combines steering and therapy controls to reduce operational complexity.

An internal warming fluid circulation system thaws adhered thermally-transmissive regions, eliminating manual saline application and reducing procedure time.

Dual magnetic coil sensors on a catheter distal end detect field gradients to compute physical dimensions.

Variable thermal conductivity hose wall dissipates electrode heat while preventing body heat from preheating the cooling fluid.

Integrated electrode assemblies on deformed spines eliminate soldering, reducing thermal injury risk during irreversible electroporation.

A flexible sensor mat detects interface pressures between a patient and the support surface to provide real-time data on pressure distribution.

A pulse oximeter detects venous pulsation using multiple near-infrared wavelengths to isolate arterial signals.

A thermal shunt member removes heat from an ablation electrode via conduction, preventing overheating during radiofrequency tissue treatment.

Metallic stop members with insulating layers prevent electrical shorts while maintaining precise jaw spacing for reliable tissue sealing.

Flat pull wires and braided wire assemblies reduce outer diameter while maintaining torque transmission for navigating tortuous vascular paths.

An embedded reference sensor inside selective encapsulation compensates for environmental drift, stabilizing measurement precision in dynamic conditions.

Periodic electrical stimulation of the lower esophageal sphincter reduces transient relaxation symptoms without complex sensing mechanisms.

A single-mode optical fiber probe uses low-coherence interferometry to obtain depth-resolved backscattering signals from tissue.

A semiconductor analyte sensor uses a conductive core and cladding to form an electrochemical pathway for continuous monitoring.

A virtual catheter model transforms spline-sensor coordinates into a 3D grid to locate rotational cardiac sources.

Automated contour detection algorithms reconstruct 3-D structural models from ultrasonic data, reducing manual intervention time.

A feeding tube with esophageal electrodes applies alternating current to detect lung fluid accumulation via voltage measurements.

A piercing member protection device uses a deformable bias flange locking arrangement to enclose the sharp tip within nested cylindrical members.

Outer sleeve reinforcement prevents flexible shaft deformation under high pressure, enabling precise fluid delivery through narrow endoscope channels.

Predictive prospective modeling estimates blood glucose concentration using sensitivity profiles and baseline models for consistent factory calibration.

Asymmetric strand distribution in a braid layer resolves the trade-off between torque rigidity and interlayer adhesion.

A device analyzes volatile organic compounds and liquid biomolecules from breath condensate to provide comprehensive health data.

A blood sampling system decouples a coaxial drive spring during the return phase to damp oscillations and prevent multiple body piercings.

Hemodynamic signal monitoring adjusts anti-tachyarrhythmia pacing timing to prevent ventricular tachyarrhythmia acceleration to fibrillation.

A bladder assessment system analyzes mean spectral power and weighted average frequency of pressure signals to quantify detrusor muscle activity.

Independent illumination and receiving optical fibers separate excitation and fluorescence paths, resolving energy loss in shared guides.