Catheter TRIZ Cases

Synchronizing intravascular pressure sensing with external ultrasound velocity detection calculates pulse wave velocity to predict renal denervation success.

Extending a flexible electrode assembly through catheter shaft openings resolves the contradiction between mechanical stability and tissue contact flexibility.

A catheter injects transparent fluid to displace blood and enable optical coherence tomography imaging of vessel walls.

A video processing system extracts videoplethysmographic signals from skin surface images to identify cardiac rhythm patterns.

Segmented catheter hub with integrated wings eliminates tape use, reducing time for securing devices while preventing kinking.

A wireless system tracks keystrokes and heart rate variability using channel state information reflections.

A method registers medical instruments with pre-acquired 3D image data sets synchronized to patient ECG signals for precise spatial tracking.

Flexible clips secure sensors to the nasal columella, reducing sympathetic innervation noise and improving signal separation.

A laser catheter with a slanted light emergence surface directs beams for precise vessel wall cutting.

A wrist-mounted photoplethysmography device detects blood volume changes to evaluate human stress levels.

An offset connector pushes the spring-loaded valve body open upon insertion, eliminating manual operation errors and ensuring reliable urine drainage.

Fixed cameras and projectors measure surgical dimensions via triangulation, removing moving parts that increase device complexity.

Array of biosensors with varying calibration curves determines analyte concentration through comparative signal analysis.

An arc-shaped blade cuts catheters to custom lengths while eliminating sharp edges that cause tissue trauma and bacterial accumulation.

Segmenting the securement device into a fixed base and movable coupling layer prevents skin damage from repeated adhesive removal during adjustments.

An implanted fluorophore sensor detects analyte signals through external optics without invasive sampling.

A catheter securement device uses a retainer with grooves and abutment surfaces to mechanically anchor medical articles.

Segmented fluidic modules process samples locally to reduce data response time while maintaining measurement precision.

Integrated suction and irrigation device manages surgical smoke while reducing manufacturing complexity.

An adjustable locking element blocks a sensor bracket to resolve the trade-off between secure placement and easy detachment.

A mobile plethysmographic device generates photoplethysmograph signals to detect heart anomalies.

A slider mechanism loads energy storage to transition a sensor assembly into an electronics housing, preventing deformation and optimizing depth.

A compact handheld interface processes distal and proximal pressure signals to calculate fractional flow reserve directly.

A handheld device applies a calibrated spring against the anus to measure voluntary push strength, replacing subjective assessment with objective pressure data.

Multilayer filters separate overlapping excitation and emission spectra in analyte sensors, preventing light contamination that causes inaccurate readings.

An esophageal catheter positions temperature sensors along its insertion element to detect atrial tissue heat via thermal conduction.

Segmented magnetic design guides electrodes precisely while reducing manufacturing complexity.

Machine learning analyzes gait acceleration to detect peripheral artery disease, replacing complex vascular lab equipment with wearable sensors.

Tenons and mortises in the interlock assembly prevent marker band dislodgement while fenestrations enhance hoop strength against ovalization.

Segmenting stiffness and flattening the tip resolves positioning precision versus organ movement adaptability.

Hook and loop fasteners on an anchor pad secure a catheter, eliminating adhesive tape contamination risks.

Automated OCT image processing detects stent struts and calculates malapposition distances, compensating for blooming artifacts to ensure accurate deployment.