Catheter TRIZ Cases

Controlled trimer content prevents surface dulling while maintaining water repellency in thermoplastic polyurethane catheters.

A blood pressure measurement device applies high-frequency cuff pressure oscillation to detect artery volume signal inflection points.

Compliant separator ring distances tubular socket probes from adjacent digits to ensure stable signal acquisition.

A processor-implemented initiation module regulates closed-loop entry using real-time sensor calibration factors and timestamp data.

Separate lumens in the bifurcated cannula prevent cross-contamination between infused fluids and extracted blood samples, eliminating repeated skin punctures.

A recompression unit increases pressure of expanded refrigerant gas to enable reuse within a closed loop.

Embedding the coil between lumen surfaces prevents sensor interference while maintaining structural rigidity during bending.

A processor calculates cardiac output using airway pressure and photoplethysmogram ratios from a blood volume sensor.

A glucose monitoring system models transport latency between interstitial fluid and blood plasma to estimate concentrations accurately.

An asymmetric braid with mixed tensile wires allows controlled bend deformation at bifurcations, reducing insertion time.

A cryogenic applicator delivers fluid through a barrel to a rolling head for skin treatment.

A multi-sensor blood pressure apparatus selects the optimal measurement site based on detected sphygmus wave characteristics.

Dual-directional coils in the catheter tube resolve torque transmission bottlenecks for flexible insertion.

A catheter positioning sled uses modular plates and motors to manipulate actuators across multiple axes for precise device control.

A flexible elongated shaft carries a semicircular positioning member to guide placement against the ectocervix.

Segmented catheter design merges rotating tip and real-time imaging to reduce vessel trauma during occlusion crossing.

Magnetic sensors on a catheter probe process cardiac signals within each cycle to update electroanatomical maps, eliminating fluoroscopy radiation exposure.

Segmented flexible layers enable continuous skin-worn monitoring while minimizing discomfort through integrated user feedback mechanisms.

Fabric sleeve with apertures secures catheters while preventing patient access to reduce infection risk.

A fluid management system uses bidirectional pumping to enable continuous lactate monitoring.

A vacuum pressure regulator uses a flexible member to modulate blood flow through a variable orifice geometry.

A magnetic tracking system estimates fluoroscope interference using a reaction field model to calculate true probe position.

A one-piece blow-molded package holds catheters in a spiral lumen with integrated luer retainers and loading tubes.

Varying spine lengths distribute tissue contact along a helical path, preventing continuous circumferential pressure that causes vein stenosis.

Centralized steering reduces mechanical complexity and operator error by merging nested catheters into a single unit with pre-formed curves.

A photoacoustic image generation apparatus detects insert tip position and wave output intensity to verify hardware functionality.