Catheter TRIZ Cases

A biological state image positions figures along axes to show sympathetic and parasympathetic predominance levels.

Segmented valve assembly with biasing element eliminates dead space and prevents air embolism during repeated guidewire access.

Helical pull wire paths distribute mechanical stress during rotation, preventing sudden whipping movements and pull wire breakage.

Infrared catheter sensors measure inner surface temperatures directly, resolving inaccessible pipe defects.

A bi-static radar system uses a transmitter pod and remote receiver to detect heart rate and respiration rates from reflected electromagnetic signals.

Segmenting the sensor unit reduces device complexity while maintaining health monitoring reliability through periodic wireless data transmission.

A shape memory alloy introducer transitions configuration to enable transcutaneous sensor implantation, reducing mechanical complexity and patient trauma.

An impedance bridge generates a tissue type map from multi-frequency measurements, resolving positioning accuracy issues during minimally invasive procedures.

Mechanical interlocking mechanism secures stretch resistant embolic coils within a delivery catheter for precise vascular deployment.

Dual finger sensors measure pulse transit time to calculate blood pressure, eliminating cuff calibration complexity.

Spline interpolation corrects systematic measurement errors from sensor impedance differences, ensuring accurate catheter shape visualization.

Expandable loop members in the catheter end effector resolve the contradiction between rigid mapping precision and atraumatic advancement through vasculature.

Diffusion of therapeutic agents from a polymer coating mitigates infusion site inflammation, enabling fourteen-day continuous insulin delivery.

Curved anchor channels increase surface friction to prevent device movement while maintaining fluid flow and signal transmission.

Segmenting cardiac monitoring into distributed electrode arrays measures cross-valve impedance to diagnose valve diseases without continuous power drain.

A glucose sensor signal analysis system assesses reliability using principal component analysis to detect non-physiological anomalies in monitoring data.

An elastic fixation device with a segmented adhesive base and protective cap stabilizes wing needles while preventing skin irritation and displacement.

Low voltage direct current measures electrical conductance changes to assess sudomotor function and skin blood flow.

Electronic pressure gauge measures femoral artery compression force with digital precision.

Segmented elastomeric band manages IV tubing to eliminate adhesive residue and infection risk.

A micro-needle patch measures LH and progesterone in interstitial fluid to resolve the delay between serum levels and urine detection.

Collimated laser beams project onto kidney stones, enabling the processor to determine precise depth from image displacement without complex mechanical probes.

Addressable transmitters use magnetic field gradients to shift resonance frequencies for precise spatial localization of implanted microscale sensors.

Cantilever beam projection separates lancet holder protuberances to enlarge the central aperture, resolving jamming risks during one-handed lancet ejection.

A 3D cardiac surface mapping system detects wave fronts and determines conduction velocity across distributed nodes.

Tear tab and dissolvable cover enable easy emptying for users with limited dexterity.

A mixed coil catheter uses a single support cord coiled around an inner liner to maintain a minimized outer diameter, reducing vessel trauma during navigation.

An adjustable compliant end effector uses electromagnetic absorbing particles to resolve the trade-off between stretchability and microwave energy absorption.

A retinal imaging system calculates the arteriovenous ratio to estimate intracranial pressure without physical contact.

Puller wires deflect the basket assembly to resolve maneuverability and stability contradictions in atrial mapping.

Integrated controller coordinates endovascular catheter cooling with fluid delivery to prevent life-threatening complications during therapeutic hypothermia.

Plastic film tube packaging forms a closed sterile accommodation space and reservoir, reducing manufacturing complexity while maintaining sterility.

Protective smartphone case housing a glucose monitor with independent power supply, eliminating phone battery drain.

A tubular device liner with a pre-applied coating simplifies catheter assembly and reduces manufacturing complexity.

Liquid perfluorocarbon refrigerant in a low-pressure catheter stabilizes unstable plaque without gas emboli risks or excessive cell destruction.

A thermally transmissive snare creates a uniform lesion during left atrial appendage ligation.

A display control device generates visualization data from intracardiac electrocardiograms to map myocardium excitation states.

An elastic object biases the puncture needle to retract behind a skin contact part, eliminating disposal injury risks while maintaining operational ease.

A flexible catheter tip with rectangular cross-section understructures conforms to cardiac tissue contours for stable electrode contact.

In-mold curing of curable conductive polymer forms elastomeric elements within sensor base plate recesses, eliminating short circuits from porous sponge rubber.

Processor analyzes arterial oscillations via fractal and spectral methods to calculate regulatory system activity indicators.

A pressure sensor mounted on a microcatheter shaft uses an intermediary deformable member to isolate the device from bending forces.

A Y-type connector uses a high slidability sliding member at the merging point to facilitate smooth catheter insertion.

Compressible cavity retains catheter laterally while adhesive backing secures device to skin without suturing.

Processor transforms virtual rays into parameter space to determine intersection points with quadrics for rapid electroanatomical map rendering.

Fusing EEG, hemoglobin, and blood flow data reduces false positives from electrode artifacts while maintaining high detection accuracy.

Relocating the scanner to the proximal end simplifies the distal structure, enabling easier sterilization while maintaining high-resolution imaging capability.

Radially expandable support frames center a neuromodulation catheter within renal vessels to stabilize fluid-delivery needles.

Real-time image analysis detects catheter geometry deviations and flow anomalies, generating alerts to prevent vessel injuries during remote procedures.

A winged medical needle device uses a segmented holding mechanism with annular grooves to secure the cannula during puncturing and storage.