Catheter TRIZ Cases

Real-time feedback from evoked neural responses ensures complete nerve destruction during renal denervation procedures.

Coextruding conductive and dielectric materials simplifies manufacturing complexity and reduces production costs for multi-electrode analyte sensors.

Composite phospholipid and hydrophilic excipient coatings prevent drug detachment from balloon surfaces while enabling sustained release at target sites.

Voltage gradient mapping reconstructs remote anatomical structures from intrabody probe measurements, resolving signal attenuation in non-contact imaging.

Temporary vessel constriction captures embolic debris, addressing insufficient capture capacity of standard devices for larger peripheral lesions.

A liquid-resistant dressing uses concentric adhesive strips separated by a gap to contain and detect fluid infiltration.

Segmented collapsible body and expandable distal framework resolve structural integrity versus tissue contact contradictions in cardiac mapping.

Resilient nitinol frames bias the end effector toward expansion, enabling full contact with complex cardiac geometries for accurate EP mapping.

A glucose sensor uses an optical waveguide and detection chamber to measure near-infrared light absorption in dialysate.

Unscented Kalman filter calculates calibration factors from electrode signals for stable glucose readings.

Integrated rotating spool and gear mechanism simplifies internal routing while maintaining catheter neutrality during bi-directional switchover.

A thermoformed PET package uses segmented cavities to house individual medical device components for independent user access.

A tubular guiding member with a helically wound support structure enhances catheter flexibility and visibility.

A wheeled platform with a swingable arm mechanism positions an imaging element to prevent collisions during movement while maintaining structural integrity.

Color-coded indicators display time differences between local activations on heart surface maps for intuitive visualization.

Processing circuitry computes curved three-dimensional surfaces from catheter electrode voltage values to render dynamic cardiac activation waves.

Spring-biased pivoting shields cover used needles automatically upon tube insertion, eliminating manual activation steps and reducing needle stick injury risks.

A cannula sensing system integrates biosensors into the tubing to detect blood biomarkers during fluid infusion.

A three-way connector links a large and small dialysate supply bag to reduce device complexity while maintaining treatment reliability.

Adaptive spectral line enhancer isolates heartbeat components from motion artifacts using autocorrelation and gain adjustments for accurate frequency analysis.

A flexible substrate sensor probe detects analytes in interstitial fluid, resolving the trade-off between continuous monitoring precision and user comfort.

Segmented catheter shafts resolve rigidity-flexibility trade-offs by assigning distinct mechanical properties to proximal and distal portions.

A catheter distal portion with an asymmetric flattened wall biases the active region against tissue while a porous conductor delivers RF energy through portholes.

Segmented shaft geometry and a central spacer prevent sensor contact with vessel walls, ensuring accurate blood pressure readings.

A lateral trigger biases a bow spring to extend a puncturing tip within a housing.

A catheter sensor detects and quantifies analytes in peritoneal fluid via a main control unit.

Gaussian process regression fills incomplete signal data points in cardiac mapping catheters, generating reliable activation maps with confidence levels.

Mapping system traces electrical signal propagation through iterative bipole identification to resolve complex arrhythmia patterns.

An elastic divider separates the implantation hole while a waterproof seal prevents liquid ingress for stable subcutaneous monitoring.

Single probes integrate biochemical and physical sensors to resolve automation limits in diabetes management.

Spectral shape analysis resolves skin pigmentation and motion artifacts to improve measurement precision in optical blood monitoring.

A sensor catheter detects pelvic floor muscle position to guide patient exercises.

Engineered substrate roughness enhances water retention and adherence of hydrophilic coatings, resolving osmotic drying issues in medical devices.

A blood pressure display device allows medical staff to manually adjust pulse wave amplitudes for reliable measurement calculation.

A weighted gelatin capsule carries an absorbent cotton string through the digestive tract to measure acidity levels externally.

Rotary body and threaded sliders displace wires for precise distal bending, resolving insufficient manipulation control in complex body cavities.

Deformable couplers join optical fibers in pressure sensing guidewires, reducing signal disruption during medical interventions.

A bio signal measuring apparatus analyzes pulse signal bandwidth to determine heartbeat periods.

Rotating drive wing prevents lancet re-extension, eliminating contamination risks from accidental reuse.

Optical coefficient transfer compensates for hermetic sealing stress, reducing device complexity and power consumption in implantable pressure sensors.

Molding the reflective surface eliminates mechanical polishing deformities that scatter laser energy and reduce beam uniformity.

Segmenting the introducer and cryoprobe resolves the strength versus cooling efficiency contradiction, enabling thinner shafts that freeze unwanted tissue.

Real-time contact force measurement predicts lesion integrity to prevent isolation line gaps in atrial fibrillation treatment.

Fluorescent dye excitation enables real-time AVM visualization during surgery, replacing expensive CT or MRI systems.

Maximizing antenna coil area within a constrained implant volume improves wireless communication link distance while maintaining hermetic sealing integrity.

Segmented base with antiseptic agents reduces bloodstream infections by allowing easy dressing changes without disrupting the catheter.

An inflatable balloon provides thermal insulation around a freezing element, preventing damage to adjacent healthy tissues during cryoablation procedures.

A display control unit superimposes pre-acquired CT calcified region images onto fluoroscopic frames to resolve heartbeat-induced alignment deviations.