Catheter TRIZ Cases

Automated seed localization combines cone beam CT and ultrasound imaging for real-time verification of prostate brachytherapy placement.

Segmented packaging with pull tabs advances catheters through textured sleeves, enabling independent insertion for users with limited hand function.

A computing system retrieves historical waveform data to determine preferred parameters for patient therapeutic devices.

A composite nociception index calculates analgesia levels from electroencephalogram, impedance cardiography, and heart rate variability data.

An expandable introducer sheath transitions from a compact profile to accommodate larger medical devices during percutaneous procedures.

A hybrid catheter combines magnetic and impedance sensors to correlate position coordinates with electrical measurements.

Guidewire markings resolve sensor placement errors in short renal arteries, ensuring accurate pulse wave velocity derivation.

A thoracic garment secures electromagnetic transducers against the skin using a dedicated pressure applying element.

Spanning arms engage an annular recess on a circular hub, allowing rotation without decoupling and reducing leakage risk.

A nonplanar catheter end effector substrate with sloped faces and dual electrode groups modulates stiffness along its length.

A catheter connector integrates a silicone oil reservoir to deliver lubricant directly into the luminal interior upon assembly.

A flexible catheter uses near critical fluid flow to create continuous cardiac lesions.

Segmented extraction ports use disposable sealing elements to isolate fluid interfaces, preventing cross-contamination across multiple treatments.

An ice ball anchors a linear ablation catheter, solving unstable positioning on slippery heart walls.

Reusable urinary catheter kit uses a disinfecting chamber to sterilize the device, reducing waste while managing system complexity.

An external auditor device senses physiological signals and operation data to generate a device audit indicator.

A medical hose uses interlocking braid and coil layers to resist axial compression.

Electrode arrays measure dielectric medium conductivity to determine balloon occlusion status, eliminating X-ray fluoroscopy and contrast agent requirements.

Nested elastic package serves as drainage tube, eliminating separate components and assembly complexity.

A retractable inflatable bone tamp uses a movable inner shaft to pull the balloon into an outer catheter.

A catheter tip electrode integrates light emitters and detectors to measure tissue contact area via optical spectroscopy.

A blood sampling device uses a pneumatic catalyst system to automatically express fluid from lancing sites.

Room-temperature stable enzyme flush clears enteral feeding tube blockages without chemical inhibitors or refrigeration.

A wearable device detects pulse volume curves via electromagnetic waves.

Segmented electrode catheter arms conform to complex dissection walls, resolving poor shape followability in conventional designs.

A neurovascular catheter uses a preset curve to orient its distal tip within vessel curvature.

Segmented light receivers and arithmetic processing cancel oxygen saturation interference, improving blood flow measurement accuracy.

A unitary medical penetrating device features a molded structure with variable wall thickness for controlled deformation.

An in vivo potential measurement device amplifies electric signals from organ contact sites to evaluate catheter balloon positioning.

A pulse wave detector uses a folded-back band with multiple engaging portions to secure the housing on the wrist.

A single-piece molded sensor element integrates an optically transparent coupling part to transmit electromagnetic radiation between the sensor area and external detectors.

Telescopic extension of the radiating section tailors ablation volume and pattern, preventing unintended damage to healthy tissue during surgery.

Periodic controller activation reduces power consumption while maintaining measurement precision for slow-changing interstitial fluid analytes.

Breathing maneuvers replace pharmacological stress agents to measure myocardial oxygenation changes, eliminating patient exposure to harmful factors.

A catheter securement system uses a retainer and clamp to hold the medical article in position upon the patient body.

A surgical probe features a laterally translating end effector to position therapeutic energy delivery against the posterior nasal cavity wall.

Segmented sensor modules nested in a biocompatible shell measure defecation forces to resolve precision versus complexity trade-offs.

An allocation system monitors biometric data to determine provider states for optimal service matching.

Radial compression secures the tube stem while a one-way valve prevents gastric reflux, reducing accidental dislodgment risks.

An implantable device calculates the coronary perfusion index using blood pressure reflection wave timing and diastolic peak pressure.

Continuous double layer capacitance monitoring detects electrode hydration status, reducing stabilization time and extending sensor life.

Segmented signal processing suppresses static reflections to amplify motion artifacts, resolving measurement precision and reliability contradictions.

A therapeutic apparatus unfolds optical fiber bundles radially to deliver light irradiation within curved body portions.

Real-time ECG analysis detects ectopic activity to prevent high-voltage pulse delivery during vulnerable cardiac phases, reducing fibrillation risk.

Segmenting the transmitter from the disposable battery base eliminates recharge fire hazards while maintaining continuous glucose monitoring duration.

A cryoablation system uses distributed temperature sensors to monitor tissue cooling and adjust coolant flow for precise lesion formation.

A catheter tip element transitions between rigid and flexible configurations via internal pressure adjustments.

An expandable centering member positions a vascular filter within the vessel lumen, resolving tortuous anatomy constraints.