Catheter TRIZ Cases

A two-compartment package uses vapor transfer and a hygroscopic draw element to hydrate hydrophilic catheters without direct liquid contact.

Selective switching between sterile water and saline helps control ablation zone size and peak temperature while reducing energy loss in tissue.

Historical confidence scores guide which PPG light sources and sensing elements activate next, improving detection reliability while cutting power use.

A hub-and-cover catheter housing stabilizes the catheter without direct pressure, improving site visibility and reducing contamination risk.

Context-based bounds, trend classification, and parameter history cut false positives and improve anomaly detection accuracy in time-series metrics.

A cover tube fixed outside the coil stabilizes the curving axis, preventing kinking and preserving pushability during catheter bending.

A welded containment ring covers the cut braid end and encapsulates the pull wire to prevent sharp edges, separation, and shaft kinking.

Electrical potential and impedance sensing locate the heart chamber transition zone for more accurate ablation electrode placement.

Combined PPG and laser flow signals separate low vascular compliance from low cardiac output in peripheral perfusion monitoring.

External sensors and magnetic tracking improve anastomosis placement accuracy through small conduits while reducing invasive delivery and complications.

Dual coil sensors and coaxial iterative computation improve basket catheter strip and electrode tracking under nonlinear magnetic distortion.

Angled bridging structures in the choke maintain electrical connection while letting coolant pass, enabling compact, flexible microwave ablation probes.

Thin film extrusion and ribbon-based shaft assembly create lower-profile catheters with larger lumens and tighter wall tolerances.

Touch-guided bedside pressure analysis visualizes vessel waveforms and ratios to assess stenosis without hyperemic agents or workflow delays.

A soft sealing sheath and stabilizing support collect urine comfortably and use vacuum drainage to limit spills and contamination.

Impedance sensors on inflatable manometry catheters provide objective, simultaneous pelvic organ images to quantify prolapse for surgical planning.

Flexible spline frames let a high-density catheter expand in the heart while reducing strain and maintaining consistent electrode-tissue contact.

An eccentric wheel and torsional drive combine insertion and retraction in one mechanism, cutting actuator complexity while keeping cannula motion controlled.

Reflective light-guide paths and an elastic skin interface help wearable pulse sensing maintain optical alignment and reduce motion noise.

A reinforced proximal retaining feature prevents secondary catheter deformation and separation during flush advancement in vascular access.

Masking on an implantable optical window absorbs internally reflected and ambient light, improving physiological sensing accuracy.

Alternating red and infrared light with different readout periods improves fingerprint, vein, and blood oxygen detection accuracy.

Velocity-derived motion filtering targets low-motion catheter positions to reduce cardiac and respiratory artifacts in electro-anatomical mapping.

A partial cover lip over an arcuate channel keeps medical devices accessible while reducing spring-out, sterility loss, and handling damage.

Independent working electrodes at different tissue depths detect errors, cut glucose sensing delay, and extend sensor life.

Periodic EIT, NIR, and ultrasound sensing tracks tissue changes after catheterization to detect internal bleeding early and trigger alerts.

Real-time impedance sensing sets ablation voltage to match epicardial fat thickness, improving target penetration while protecting muscle tissue.

Cooling channels and steerable catheter placement enable microwave ablation in hard-to-reach lung tissue while limiting heat damage along the path.

Redundant working electrodes use resistance and calibration values to fuse one optimal glucose reading while reducing finger-stick calibration.

Template-based beat detection aligns cardiac signals with position data to map changing arrhythmias more accurately in real time.

An expandable LAA closure framework with an internal sensor and threaded release improves thrombus blocking while limiting tissue damage.

Fluid-coupled MEMS sensor assemblies on a flexible catheter improve circumferential esophageal pressure mapping for swallowing diagnostics.

A laterally bending cryogenic needle targets sensory nerves to relieve osteoarthritis pain with minimal invasiveness and fewer drug side effects.

Periodic EIT, NIR, or ultrasound sensing tracks tissue changes at a catheter access site to alert early internal bleeding or hematoma formation.

Real-time OCT mapping guides cerebrovascular implant sizing and deployment, reducing perforation and small artery blockage during aneurysm treatment.

A double-clad fiber separates treatment and sensor lasers in time and space, preserving endoscope flexibility and monitoring accuracy.

A tapered optical fiber improves laser energy coupling in balloon lithotripsy while generating localized plasma pulses to fracture vascular lesions.

A separate touch GUI remotely adjusts ICE imaging parameters while reducing cables, equipment footprint, and control burden in tight procedure rooms.

By extracting far-field unipolar EP signals, this case estimates ventricular scar depth and severity without relying on MRI.

By isolating unipolar far-field signals, this case maps ventricular scar depth and distribution to guide ablation without MRI.

Two working electrodes with different activity levels and a timed signal handoff improve analyte sensor run-in, interferent rejection, and longevity.

A thermally conductive liner improves cryoablation heat transfer to form continuous cardiac lesions and reduce pulmonary vein reconnection.

A concave first blade surface lowers tip angle and puncture resistance, helping catheter needles enter vessels more smoothly with less pain.

Automatic vessel extraction checks whether a selected needle or catheter fits the target vessel and guides insertion angle in real time.

Ablation electrodes with slot-mounted temperature sensors let one basket catheter map, ablate, and monitor tissue in a single insertion.