Catheter TRIZ Cases

Segmented inner support catheter with differentiated stiffness sections enhances navigation through complex vascular anatomy.

Differentiating band stretchability resolves the conflict between easy attachment and position stability, preventing sensor displacement over the ulna.

A cryoablation balloon circulates low-pressure liquid refrigerant through a closed-loop system for precise tissue freezing.

Multi-pass light paths and secondary source filtering resolve interference from ambient light and movement in blood oxygen sensing.

A safety blood lancet device uses a cantilever hook to constrain the carrier until the safety cap is removed.

Computes virtual electrograms from multi-dimensional catheters to select specific bipole orientations, resolving interpretation complexity.

Clover-shaped anchors secure pulmonary artery implants without damaging vessel walls by conforming to anatomical contours.

A medical device analyzes blood oxygen saturation signals to identify desaturation patterns for physiological condition detection.

Segmented catheter probe with expandable radiation section minimizes heat loss and vascular wall damage during perivascular autonomic nerve ablation.

Recessed base portion aligns with vein to reduce mechanical force while contoured surfaces prevent catheter kinking and contamination.

A sensor assembly integrates a sealing ring around contact pads to detect analytes in body fluids.

A wireless sensor reader generates spike-shaped pulses to excite LC sensors for ring-down signal detection.

A wearable bio-electromagnetic sensor uses a toroidal magnet to induce fields for non-contact physiological monitoring.

A system co-registers physiological measurements with angiographic images to identify vessel regions of interest.

A catheter sensor core uses ferromagnetic windings to concentrate magnetic fields and amplify signal gain within a compact medical device.

Analyte sensor calibration system detects signal attenuation to delay reference measurement until stability is reached.

Guide sleeve ramp twists insertion component to ensure full subcutaneous sensor placement despite skin bulging.

Protrusions on the catheter exterior disrupt thrombi, allowing controlled aspiration that reduces procedural time and tissue damage risk.

Flexible protecting net shields rigid RF electrode array from organ inner walls, preventing tissue scratching while accommodating bladder volume changes.

Circuitry purifies raw fluorescence signals from implantable glucose sensors by removing offset and distortion.

Segmented conductive anchors prevent electromagnetic interference with wireless physiological monitoring signals.

A sensor insertion device establishes electrical conduction by rotating a control unit to engage a base structure.

Adapter with male screw and cut-out part prevents rotation in blood sampling holders, ensuring needle stability during collection.

Organic reinforcing fibers in polyurethane tubes improve kink resistance while allowing clean cutting for injection port connection.

Segmenting the sampling device with a separating medium enables analyte enrichment while preventing clogging and air bubble formation.

An implantable biosensor uses light source arrays and detectors to capture reflected signals for precise neural tissue monitoring.

Lock tabs engage housing apertures to prevent catheter dislodgement and reduce infection risk.

Movable shielding on flexible tubing covers the needle cannula, resolving bulk and weight issues that obstruct vision and cause discomfort.

Asymmetric volumetric median filtering reduces speckle noise in three-dimensional optical coherence tomography by incorporating out-of-plane measurements.

A wearable device broadcasts non-visible light pulses to transmit encoded identity data between portable social clients.

Segmented curved probe shaft enables precise nerve ablation, resolving trade-offs between maneuverability and treatment reliability in rhinitis care.

A t-bar anchor with a transverse extension and ferrule connects to a puller wire, sustaining higher pulling forces during cardiac ablation.

A polyamide resin with specific linear aliphatic units achieves balanced breaking strength and elongation for medical device applications.

An anti-pull-out lock mechanism secures a catheter using radial restraining members, reducing leakage and dislodgement risks while allowing maneuverability.

Intravascular oximeter resolves device size constraints to enable real-time stroke detection and brain injury monitoring.

Pivoting caps with flexible seals maintain sterility under compression forces while allowing easy opening for users with limited dexterity.

Radiating tip portion varies relative permeability across frequencies to reduce physical length, enabling rapid heating of large tissue volumes.

A blood collection tube holder uses a discharge needle displacement member to retract the venipuncture needle into the device body.

Elastomeric anchoring member with pull tabs and T-shaped strap secures catheters to flexible adhesive base.

A microvolume 3-way stopcock with a T-shaped rotatable flow control member minimizes fluid-path dead space in blood sampling systems.

A data processing system determines glucose trends by comparing sensor signals against predetermined tolerance parameters.

An integrated supercapacitor stores charge generated by glucose oxidation in the enzyme layer, eliminating external power needs while extending device lifespan.

A separable link connects body-monitoring modules to enable continuous analyte sampling via microneedles.

Segmenting receivers with a phantom layer isolates motion artifacts, allowing the processor to subtract distortions and stabilize blood pulse waveforms.

Analyzing simultaneous skin surface and endovascular ECG signals replaces X-ray guidance, reducing radiation exposure while improving placement accuracy.

A sensor retainer couples a physiological characteristic sensor to an inserter frame for secure attachment during implantation.

Wavelet transform decomposes photoplethysmogram signals to extract respiration data, eliminating the need for additional respiratory sensors.

A switch activator synchronizes power supply with actuator movement in continuous analyte meters.

Segmenting the ascending phase of a dilution curve eliminates recirculation errors, enabling accurate calculation of circulatory fill status.

Radially expanding tubular insulation member supports ablation electrodes on its outer surface within a blood vessel lumen.