Catheter TRIZ Cases

An implantable ocular glucose sensor measures aqueous humor concentration via electrochemical or volume-responsive mechanisms.

An elastic reinforcement element within the tubular shaft prevents permanent deformation and kinking when the catheter remains stored in a curled disposition.

A pressure-sensing guidewire measures the pressure gradient across a vessel lesion using saline injection to simulate hyperemia.

Hooks and floss bind strips into a strap with movable portions that reduce tubing displacement during patient movement.

Pressure sensors monitor ventricular capture loss during cardiac resynchronization therapy to adjust electrical stimulation.

Segmented Nitinol splines with a continuous distal tip enable precise 3D electroanatomical mapping, reducing atrial fibrillation ablation risks.

Variable braid configurations resist compressive forces from pullwires, maintaining axial stiffness while allowing lateral flexibility for steering.

A catheter pressure sensor measures intra-abdominal pressure by detecting fluid pressure changes within the bladder.

A flexible PVC medical tube features a superimposed styrene-butadiene block copolymer layer to enhance adhesion with connection parts.

A modular catheter adapter uses a coil structure to create an interference fit within the parent module lumen for secure attachment.

A compressible dielectric allows the outer conductor distal end to transition diameter, resolving impedance mismatches that reduce energy delivery efficiency.

Pressure ratio calculation assesses stenosis severity without hyperemic agents by removing irregular heartbeat cycles from proximal and distal pressure data.

A high resolution manometry system creates three-dimensional pressure distributions to detect rectal and esophageal diseases.

Segmenting electrical impedance signals into absolute and phase components enables continuous cardiac output detection without invasive catheters or probes.

A hand-operated catheter advancement device uses reciprocating one-way valves to grip and advance flexible medical tubes.

A near infrared spectrophotometric sensor assembly uses two detectors at distinct distances to capture light signals from biological tissue.

A flexible electrode catheter applies unipolar voltage signals to detach and dissolve thrombus material within blood vessels.

Segmented valve design eliminates stagnation zones while maintaining liquid-tight seal integrity.

A wireless pH measuring device transmits data from the esophagus using a hollow body and exposed electrodes.

A blood pressure measurement apparatus detects arm rest flexure to inform users of incorrect posture via visual display feedback.

A medical instrument bending mechanism constrains operating line routing through a deviation preventive member, preventing thermal expansion breakage.

Fan portion creates barrier at aneurysm neck to inhibit blood flow and prevent agent leakage during injection.

Flexible echo times and Dixon separation eliminate fat signals without multiple acquisitions, reducing scan time for first pass imaging.

An oval cross-sectional sharp reduces peak insertion force and minimizes subcutaneous trauma during sensor deployment.

An expandable cryogenic balloon conforms to uneven cardiac tissue surfaces to create wide-area myocardial lesions.

An electrochemical sensor uses an insulating layer overlapping electrode pad edges to shield conductive traces from mechanical stress.

A retrieval basket integrates a laser catheter to direct energy at acute angles for material fragmentation.

Core wires regulate adjacent arm members to prevent concentration during rotation, ensuring accurate potential measurement.

An aviation health monitoring system adjusts pulse oximetry check intervals based on altitude data to reduce pilot workload while preventing hypoxia.

A transducer-activation system coordinates concurrent RF power delivery to distinct electrode subsets.

A microcatheter system uses an internal Luer lock mechanism to join extensions while maintaining a constant internal diameter.

Continuous radial acquisition with non-rigid motion correction reconstructs coronary arteries in high spatiotemporal resolution.

A biological fluid collection tube merges lancing and sample capture into one unit.

Segmented protector uses an inclined part to bias an extended part, occluding the tube and preventing blood leakage during disposal.

Alignment grooves and protrusions prevent connection part collision during transmitter assembly, protecting biosensor integrity.

Phosphorescent microparticles in a barcode hydrogel enable multiplexed sensing of oxygen and glucose without electrochemical interferents.

Segmented electrodes on a rotatable catheter reduce procedural steps by eliminating frequent repositioning during nerve ablation.

Continuous helical bi-component fiber sleeve improves catheter torqueability and kink resistance in tortuous vascular paths.

Variable insertion speeds and factory calibration eliminate spurious readings and reduce calibration time for continuous glucose monitoring.

A balloon catheter with integrated pressure sensors extracts gastric motility data to drive automated feeding flow rate adjustments.

A multi-angulated catheter navigates complex aortic angles to reach the left ventricle from the radial approach.

Automated visual characteristic detection reduces false positives in home-based cardiac monitoring, improving patient safety.

Controlling entanglement unit thickness to 9 μm or less enables straight tearing and secure fitting while minimizing thermal damage to internal articles.

A transcutaneous glucose sensor uses a keyed modular interface to resolve the trade-off between continuous monitoring frequency and device complexity.

Segmented multi-spine catheters map cardiac electrical activity, eliminating ionizing radiation exposure and reducing procedure duration.

Multi-stage signal processing separates amplified channels by gain to filter movement noise and improve measurement precision.

A wearable monitoring device combines an optical sensor and accelerometer to generate real-time vital sign signals.

A catheter handle uses a rack gear to move slidable racks and pull steering wires for precise deflection control.

A mounting part defines the position of a tubular hoop relative to a light receiving part to measure laser intensity.