Catheter TRIZ Cases

Segmented fabric wraps stabilize external tubes via nested anchoring, reducing infection risks from accidental patient manipulation.

Frequency domain conversion and band pass filtering isolate physiological signals from motion artifacts in oscillometric data.

A hermetically sealed implantable sensor detects glucose levels via wireless telemetry.

Concentric optical sensors positioned within a narrow arc eliminate reflected light noise from transmissive windows, improving blood flow measurement accuracy.

A device constructs a noise reference from segmented physiological signals to filter motion artifacts using adaptive techniques.

Bioluminescent cells transmit optical signals through body tissues for implantable device communication.

Expandable stent anchors catheter tube in tissue via elastic radial force, preventing displacement during long-term nutrient delivery.

Dual coaxial tubes rotate and slide to adjust curvature, resolving fixed-shape limitations in vascular procedures.

Conductivity electrodes measure microneedle insertion depth, maintaining reliable retention while reducing invasiveness.

A flexible plaster medical sensor assembly uses an adhesive flap attached between the measuring and contact parts for secure skin attachment.

Radial openings in a soft cannula distribute fluid pressure to reduce injection pain while mitigating kinking risks.

Rotational activation aligns an external retraction chamber with a rearwardly biased mechanism, eliminating forward force and preventing needle-stick injury.

Evaluation unit monitors counter electrode potential to detect malfunctions, preventing electrode damage and ensuring measurement reliability.

A malleable surgical clamp adapts its shape to reach complex anatomies while conducting ablation energy for precise transmurality assessment.

Encapsulating steering wires between inner and outer braids prevents delamination from the internal lumen while preserving torque transmission.

Automated prick nanoelectronics device deploys biomarker-marked microneedles to measure biological signals at user-defined intervals.

A breakaway IV valve uses a spring-loaded washer to seal fluid apertures upon disconnection.

A steerable catheter handle uses a transversely movable slide bar to lock the steering lever position.

Inflatable cryoballoon catheter delivers targeted cooling to the vagus nerve through the gastric wall.

A single probe merges multiple analyte and physical sensors to reduce device complexity while maintaining measurement precision.

Segmented adhesive strip isolates light-tight sealing from skin contact, resolving the trade-off between measurement precision and microcirculation disruption.

Hinged packaging maintains a collapsed drainage portion to reduce volume while preserving sterility and ease of use.

Segmented fixation resists circumferential compression while preventing tissue necrosis, enabling easy removal.

Segments measurements into low, mid, and high frequencies using interdigital and coplanar waveguide electrodes to eliminate non-glucose tissue interference.

Trigger mechanism blocked until cap removal prevents accidental activation during blood sampling.

A physiological monitoring method derives respiratory parameters from pulse interval noise in the time domain to estimate energy consumption.

Replacing coil springs with magnetic attraction and repulsion controls plunger motion, preventing oscillation that causes multiple skin punctures.

A detachable drainage conduit made from water-degradable material connects to a urinary catheter for safe fluid transfer.

A medical insertion device guides a penetrating member through linear movement constrained by stationary and moving housing components.

A patient monitoring system extracts derived value data sets from photoplethysmograph signals to generate an arrhythmia indicator.

Rolling a circular sector absorbent element creates a funnel that collects urine while preventing leakage and infection risks.

Segmented spine segments with dedicated irrigation tubes control pore size and flow direction to minimize blood stagnation during cardiac ablation.

A wearable device detects user actions by analyzing target blood flow information through spectral analysis techniques.

An implantable biosensor uses an antenna to receive radio frequency waves for wireless power and transmit backscatter signals encoding measurement results.

A computer system quantifies fetal risk by scoring concurrent non-reassuring characteristics in heart rate variability, accelerations, decelerations, and uterine activity.

Segmented basket catheter resolves coverage versus precision trade-off to localize rotor cores.

A multi-directional catheter guard uses friction material to resist lateral movement on tubing.

A locking stabilizer uses a torque-actuated gripper to secure an indwelling catheter shaft without direct wound contact.

A forehead sensor detects scattered electromagnetic wavelengths to identify venous pulsations in forehead tissue.

Capillary action in the collector automates fluid uptake, eliminating manual expression errors and contamination risks.

Gradual durometer transitions in polymeric catheter tubing resolve contradictions between manufacturing simplicity and torque control reliability.

A sensor insertion device uses a switching mechanism to coordinate two urging members for needle movement.

A base housing integrates a pressure sensor unit and electronics on a printed circuit board connected to an exchangeable catheter.

A segmented on-body sensor housing combines rigid electronics protection with soft skin-contact layers to resolve mechanical contradictions in continuous glucose monitoring devices.

Ablation catheter uses patterned mirror reflectivity to detect axial and lateral forces via optical fibers.

Segmented sensor layers coupled via a flexible midlayer resolve the thickness versus comfort trade-off in multianalyte monitoring devices.

A wireless intracranial pressure monitor uses an in-catheter wire to transmit sensor signals, eliminating external physical wiring.

Segmented pin and sleeve mechanism decouples insertion from retention, preventing leakage in wet surgical environments.

An angled ball lens corrects sheath-induced astigmatism, balancing beam profiles for improved image quality in medical imaging systems.

A controller monitors electrical current flowing from an ultrasound probe to detect residual disinfectants in connector terminals.