Catheter TRIZ Cases

Radial protrusions on the catheter inner surface reduce frictional forces, preventing device fatigue and extending longevity without complex assembly.

A flexible fluid-cooled shaft removes heat from microwave energy cables, preventing unwanted thermal transfer to surrounding patient tissue.

Integrated adhesive strips on the catheter hub allow single-handed securement, eliminating the need for separate application steps and reducing procedural time.

A releasable retainer mechanism secures a bone filler delivery nozzle within a surgical cannula to maintain precise positioning during minimally invasive procedures.

A piezoelectric sensor measures mechanical stress on an ablation electrode to provide real-time contact pressure feedback.

A movable laser delivery member advances along a rail wire to ablate larger arterial blockages than fixed fiber tips allow.

A second analyte sensor uses data from a first sensor to establish calibration during an overlap period.

Integrating notification functions into the transceiver eliminates proximity constraints for user alarms.

A flexible cryoablation needle uses threaded liner pipes and annular protrusions to secure the catheter connection.

Air-pack sensors detect pulse wave frequency fluctuations to determine driver alcohol consumption states accurately.

Heated mapping electrodes thaw ice on sensors during cryotreatment to maintain signal clarity.

Segmented mounting units and overbandages reinforce adhesive bonds against dislodgement during vigorous exercise.

A subcutaneous sensor probe transmits analyte data via radio signals to a receiver for continuous monitoring.

Dynamic algorithm selection compensates for interstitial time lags and stabilizes calibration consistency in continuous glucose monitoring systems.

Light-transmitting catheters integrate treatment and dosimetry fibers to measure photosensitizer properties via spectrometry for precise light delivery.

A tapered slot balun suppresses outer surface currents on a microwave ablation antenna using a segmented conductive structure.

A tube joining device uses a cover-synchronized superimposing portion to align flexible tubes before fusing.

A method determines optimal measurement timing in the cardiac cycle by analyzing time curves of blood volume parameters to identify a sweet spot.

An adjustable catheter shaft system resolves the trade-off between adaptability to different access routes and device complexity by using a movable shuttle.

Offset spine loops position electrodes in a single plane while connecting off-plane, resolving interference during high-density mapping.

Handheld bladder health monitoring device with pressure sensors and processors attach to catheters for real-time data recording.

A flexible substrate integrates a low-power display and sensors directly on the skin surface.

Fiber Bragg grating sensors detect acceleration pulse waves to estimate blood glucose levels without invasive sampling.

A transcutaneous glucose sensor uses nested polymer encapsulation to protect embedded electronic circuitry from body fluids.

A blood lancing device uses a slide rail system to guide the lancet holder along a fixed path.

Thermal bridges connect conductive layers through a polymer substrate, resolving thermal resistance in flexible catheter tips.

Digital processing module corrects arterial blood pressure signals by characterizing hydraulic connection dynamics.

Left atrial pacing constricts the mitral valvular annulus during ventricular systole to improve valve leaflet coaptation.

A piezoelectric pulse sensor uses a thin film transistor array and induced electrode to generate multiple sensing signals from distinct wrist positions.

Time division multiplexing enables patient paging on a single frequency band, resolving conflicts between location tracking and limited spectrum availability.

A delay circuit adjusts timing between parallel photo diode signals to resolve skin contact interference and improve measurement precision.

A disposable cartridge merges lancing and analysis using wicking members to guide blood directly to sensors.

Simplified governing equation with two boundary conditions models analyte transport to resolve measurement precision and computational complexity trade-offs.

Segmented release liner with score lines allows single upward pull removal, reducing contamination risk and pull length during infusion device application.

Staggered durometer transitions in multi-layer outer jackets reduce buckling and kinking during tortuous vessel navigation.

A flexible patch with an LED matrix and photodetector row measures optical signals to calculate biological metrics.

A machine learning model predicts anesthetic depth using peripheral venous pressure waveforms.

Segmenting the lancet into a reusable shaft and disposable needle eliminates individual springs, reducing device complexity while maintaining hygiene.

An asymmetric dual-directional steerable catheter sheath navigates to left and right pulmonary veins by switching between distinct bent configurations.

An adhesive intermediary layer enables continuous glucose measurement through the skin barrier, eliminating mechanical finger pricks while maintaining accuracy.

Tapered fitting with scalloped joints reduces stress risers preventing catheter kinking during navigation.

Combining molybdenum filaments with stainless steel resolves the contradiction between kink resistance and flexibility in thin-walled catheters.

Extracting batteries via radio frequency power transfer eliminates device volume constraints and hazardous material risks in implantable biosensors.

Nested housing captures debris while rotating cutters remove plaque, preventing embolization and reducing vessel wall trauma.

Implantable device paces aortic tissue to reduce cardiac afterload, avoiding drug side effects while increasing cardiac output.

Universal hub engagement clips anchor catheters, eliminating skin excoriation from tape changes.

Segmented layers and local quality principles prevent migration while maintaining breathability.

A roll joint rotates a surgical end effector while a coiled conductor unwinds through a slip ring, resolving conductor entanglement that limits range of motion.

Segmented conductor loops on a rigid non-ferromagnetic stylet body resolve the trade-off between high-resolution signal acquisition and device complexity.