Catheter TRIZ Cases

Micro needles penetrate the epidermis to monitor interstitial fluid, eliminating pain from fingertip pricks and enzyme degradation.

Segmented couplings with self-latching locks isolate security from infusion flow, preventing illicit drug administration without obstructing medical fluids.

Pre-coating an evacuated tube interior with thrombin and citrate stabilizes the enzyme, accelerates clotting speed, and reduces fibrin levels in serum samples.

Camera detects finger shape and position to overlay commands on ultrasound images, resolving separation between practitioner and display.

A wearable wrist band integrates biometric sensors and a display to show real-time heart rate zone data directly on the device.

Dynamic calibration updates adjust sensor sensitivity using real-time data processing to maintain measurement accuracy.

A tubular stainless steel braid electrode provides continuous electrical contact with skin.

Thin sidewalls parallel to the antenna coil axis increase internal volume, resolving the trade-off between hermetic protection and link distance.

A guidewire optical connector uses a distal ferrule to coaxially align proximal and distal fibers for precise light transmission.

A medical tube holder integrates fluid pockets that discharge lubricant onto the tube surface when pressed by external force.

A robotic instrument driver uses radial drive wheels to orient catheters laterally beside the patient.

Anchoring devices adhere to skin lateral to the puncture site, preventing pistoning and dislodgment of percutaneous catheters.

Needles of varying lengths penetrate specific tissue depths to measure bio-marker concentrations, eliminating pain from repeated blood collection.

Longitudinal steerable tool uses proximal amplifier and distal attenuator regions to enable omni-directional movement through narrow spaces.

A glucose monitoring system estimates blood levels using interstitial fluid measurements and mathematical modeling.

A glucose sensor calibration method derives non-linear mappings between signal values and blood glucose concentration using temporal pairings.

Curved nozzle positions emitters to align light trajectories through ear canal tissue, resolving trajectory divergence between distant wavelengths.

A medical fixing device uses angled piercing tips on a bridge to anchor articles securely to skin.

Segmented memory areas protect blood glucose data from loss during power interruptions, ensuring reliable diabetes management.

An opaque optical isolation element surrounds sensor optics to block stray light and concentrate excitation signals on indicator molecules.

Electrical stimulation extends the lower esophageal sphincter high pressure zone length to create a stronger reflux barrier.

A transcutaneous analyte sensor uses a key mechanism to connect an electronics unit for continuous glucose monitoring.

Integrating penetrating members and test sensors into one removable cartridge reduces device bulk and operational complexity.

A catheter securement device uses a universal fitting to attach interchangeable active and passive technologies.

A neonatal pulse oximeter probe uses a compressible sponge band to secure the device on infant skin without causing pressure damage.

Medical system displays patient wellness status through visual trending indicators and rules-based engine calculations.

A handheld bodily fluid collection device incorporates electronic sensors and a vacuum mechanism to extract and measure samples.

Preformed distal segment abuts ascending aorta to stabilize the catheter tip, preventing dislodgment during right coronary artery procedures.

A biosensor cross-calibration method predicts and subtracts background currents using a reference sensor to stabilize readings.

Electrical and optical domain calibration suppresses radio frequency interference and photoacoustic artefacts, improving axial resolution.

A blood lancing device uses a tensioning mechanism to lock a drive spring for reliable reuse.

Analog processing circuit with DC voltage detecting module compensates optical signals to isolate vessel characteristics from skin noise.

An adjustable RF applicator directs energy pulses into tissue regions of interest to generate bipolar acoustic signals.

A blood flow simulator generates realistic pressure waveforms in test fluid using stored waveform files.

A removable optical fiber delivers therapeutic electromagnetic radiation through a catheter lumen to inactivate infectious agents.

A finger-activated lancet device uses a cantilever spring to pivot the puncturing element between retracted and extended positions.

Segmented adhesive dressing with hub-matching aperture secures insulin infusion sets, eliminating full removal to prevent water permeation and microbial growth.

Electromagnetic drive coil arrays energize internal sensor coils to calculate precise three-dimensional catheter orientation.

A therapeutic assembly sensor detects temperature and impedance changes within a vessel to determine renal arteriolar vasomotion.

Signal processing apparatus extracts physiological measures and outputs emotion status labels for robust estimation.

Segmented filters and a deflector intercept debris in the aortic arch, preventing embolic material from entering cerebral arteries during procedures.

Curved support structures anchor intraocular devices at three iridocorneal angle points, preventing dislodgment while avoiding visual axis interference.

Liquid spray dispersion inside a cryogenic balloon provides uniform cooling, resolving depth control challenges in Barrett's esophagus treatment.

Segmented guidewires and peelable sheaths reduce accidental filter displacement and shorten removal time by enabling rapid exchange without wire retraction.

A flexible capillary tube integrates a luer cap and needle to draw blood samples directly from catheter ports.