Catheter TRIZ Cases

Segmented fluid paths isolate calibration from bodily fluids, reducing anticoagulant administration and blood volume removal during medical monitoring.

A Huber needle assembly uses a spring-loaded tip block and cable restraint to secure the bent needle within the housing.

A left atrial appendage occluder integrates a cryoablation portion to freeze tissue and form an annular isolation band.

Dynamic control target interpolation compensates for body tissue deformation, resolving measurement precision errors in non-invasive blood pressure monitoring.

Automated physiological sensing replaces unreliable self-reporting by comparing sensor data against target conditions to detect treatment deviations early.

Extracting core Doppler functionality into a handheld unit resolves the trade-off between clinical-grade measurement precision and bulky equipment size.

A multi-channel blood collection device draws fluid via capillary action and transfers samples into containers using vacuum pressure.

Near-infrared illumination visualizes the sizing tube position while a one-way valve prevents sticking during sleeve gastrectomy procedures.

A photobiological measurement apparatus calculates cerebral activity using a single light-transmitting probe as a universal reference signal.

A penetrable absorber container links to package walls via a movable device.

A catheter securement device uses a movable strap to retain tubing within a tubular channel, reducing skin irritation from chafing.

A flexible catheter with a rotating cutter removes occlusive plaque from blood vessels.

Inductive coils measure three-dimensional force vectors through electromagnetic induction, resolving contact verification accuracy issues.

Segmented detectors filter low-confidence signals to prevent memory exhaustion from false positives while maintaining diagnostic accuracy.

Integrating optical sources with microelectrodes eliminates manual assembly alignment, enabling tether-free implantation.

Variable density spiral sampling combined with compressed sensing reconstructs high-quality myocardial strain images while reducing acquisition time.

An image processing apparatus corrects contrast agent concentrations in myocardium tissue and arterial blood using baseline pixel values.

A multi-electrode catheter array uses self-expanding nitinol coils to maintain stable contact with the atrial wall.

An electroanatomical mapping system computes a slow conduction metric from local activation timing data to generate dynamic visualizations of cardiac wavefront propagation.

Dual artificial neural networks map 3D blood vessel geometry to hemodynamic characteristics for rapid clinical assessment.

A fiber-optic laser apparatus emits radiation through a cystoscope to ablate bladder tissue.

A magnetic guide tip attaches to endoscopic staplers, enabling precise navigation around arteries and veins.

Orthogonal sensor coils detect magnetic distortions from metallic objects, correcting catheter positioning errors in medical procedures.

Proximal and distal magnetic arrays on catheters provide tactile feedback for precise vessel alignment, reducing the invasiveness of fistula formation.

Radar system segments signal processing into data buffer, status classifier, and detector to resolve reliability versus ease of operation contradiction.

A retrieval shaft with a capture mechanism moves emboli into an expandable collection basket.

Segmented modules with flexible interconnects eliminate gaps between arrays, maintaining resolution while enabling individual module replacement.

A catheter shaping wire transitions from a circular distal profile to a rectangular proximal geometry to enhance 1:1 torque transfer.

A catheter connector packing uses delayed projection contact to distribute pressure evenly along the tube.

Etched multi-point fiber Bragg grating sensors increase pressure sensitivity while maintaining small diameter for medical applications.

A system estimates anaerobic threshold using heart rate and external workload data.

Processing intracardiac electrograms into a velocity vector map resolves spatial resolution limits in locating cardiac rhythm disorder sources.

An integrated needle member measures myocardial stiffness through puncture resistance, temperature, and color data to simplify infarction detection analysis.

Segmenting the connector into a low-profile wearable unit and a distinct mating component resolves alignment challenges while maintaining mechanical stability.

Functionalized polyvinyl chloride polymer incorporates amino acids to increase hydrophilicity and flexibility.

SMART membranes maintain constant analyte flux to minimize sensor response variability caused by temperature sensitivity.

A flexible pressure transmitting membrane housing enables reversible deformation to compensate for internal liquid volume changes in implantable sensor devices.

A flow impedance restricts ablation medium velocity to prevent blood suction into the catheter during vacuum operation.

Diverging pullwires concentrate forces at the tip while distributing loads proximally, reducing shaft muscling and improving tracking consistency.

Segmenting sensing into a disposable accessory resolves the trade-off between measurement precision and device complexity in cardiac ablation.

Dynamic filtering adjusts parameters based on the rate of change to handle varying sensor sensitivities without increasing processing complexity.

Continuous wavelet transforms convert photoplethysmograph signals into scalograms for respiratory effort extraction.

A blood volume correction factor adjusts near-infrared spectroscopy signals to measure mitochondrial capacity accurately.

A cap assembly with a plunger and resilient valve displaces fluid within a lock solution syringe.

An infrared detection unit identifies amide absorption peaks to determine organic matter presence and organism viability in samples.

Calibrating intravascular pressure sensors at the point of use with aortic pressure data eliminates factory calibration drift and redundant manufacturing steps.

Segmented anchors deploy via the catheter lumen to secure instruments without sutures, reducing tissue trauma during removal.

A dermal patch lancet moves needles from an undeployed to a deployed position using spring mechanisms.