Catheter TRIZ Cases

An intraocular implant uses an optical interrogation system to measure pressure.

A blood pressure monitor obtains atmospheric pressure readings to calculate a zero value for recalibrating an internal sensor without removal.

An integrated needle guide aligns a fragile sensor wire with an insertion needle, preventing lateral bending and breakage during skin puncture.

A cardiac rhythm management system adjusts ventilation sensor rate response factors using measured tidal volume data.

Replacing complex external sensors, a deformable conductive mesh on an inflated balloon maps internal geometry through electrical impedance variations.

Pivotal movement of the catheter tube relative to the handle enables comfortable self-catheterization while minimizing leakage risks.

Segmented magnetic stylets resolve the stiffness-flexibility contradiction by applying local quality principles to navigate complex vascular paths.

A dual sensor bio-pressure transponder uses gain correction to measure intracranial fluid pressure.

Deployable subcutaneous anchors secure catheters without sutures, enabling skin cleaning and inspection at the insertion site.

Rotating dispensing member advances stacked test strips through an opening, increasing storage capacity without enlarging the device.

A removable electromagnetic radiation conduction system delivers therapeutic light through a catheter lumen to inactivate infectious agents.

Segmented adhesive islands distribute shear loads to prevent catheter dislodgment and reduce infection risks during wound care.

A dual-sided coagulation device applies electromagnetic energy to cardiac tissue surfaces.

A flexible multimodal sensor integrates electrochemical and electrophysiological sensing electrodes on a single substrate to acquire real-time physiological signals.

A self-adhering flexible electronics patch follows skin contours to prevent early detachment and inflammation during continuous glucose monitoring.

Self-locking modules automatically engage upon catheter displacement to prevent movement while minimizing radial pressure on the tube wall.

A guidewire lumen bushing restricts debris entry into the guidewire lumen, maintaining stable aspiration pressure during interventional material removal.

Segmented catheter rotation reduces vascular trauma by allowing the distal tip to self-orient through tortuous paths without excessive force.

A medical introducer sheath combines proximal braid and distal coil reinforcements to distribute radial forces during stent deployment.

Conductive polymer film with immobilized anchor molecules adsorbs opioids to alter electrochemical properties.

A glucose meter detects alternative site tests using integrated sensors to store analyte concentrations with specific markers.

A wearable heartbeat sensor paired with a smartphone processor generates periodic auditory output synchronized to the subject's heartbeats.

Expansile hydrogel filaments eliminate metallic support members, reducing beam hardening artifacts during CT imaging.

A set connector assembly uses a movable graspable portion to transition between locked and unlocked positions.

Triangular fixation member with resilient polymeric material maintains device stability while minimizing tissue trauma during implantation.

Segmented guiding catheter navigates curved coronary arteries while minimizing vessel wall damage and thrombus risk during device delivery.

Continuous glucose sensors display directional arrows showing rate of change to reduce glycemic event risks through timely insulin therapy decisions.

A catheter transformer removes direct current offset from analog cardiac signals to generate a zero-volt reference for precise ADC sampling.

Engaging member extends optical fiber plug for mobile position sensor detection, eliminating manual reattachment estimation errors.

Segmented lumens generate laminar flow to prevent turbulence, while Venturi suction recaptures refluxed embolic beads.

An implantable sensor uses electrical impedance to monitor physiological parameters.

Inflection point creates asymmetric heating pattern to reduce collateral tissue damage.

Segmenting the irrigation function into a perforated tube preserves electrode structural integrity while preventing tissue charring during ablation.

A securement device uses microhooks to anchor medical lines directly to skin.

A blood vessel visualization apparatus adjusts light distribution angles by position to achieve uniform luminance across the imaging area.

Kinetic cyclic voltammetry segments potential ramps to extract kinetic maps, resolving background interference in complex electrochemical environments.

Movable spines on a medical probe expand to contact pulmonary veins, reducing procedure time by eliminating repeated repositioning.

Combining thermal, radar, visual, and acoustic datasets improves detection accuracy while reducing screening time.

Segmented microelectrodes enable continuous non-invasive tear fluid monitoring, eliminating the need for invasive blood sampling.

A system monitors the negative component of unipolar electrograms to detect signal changes during cardiac procedures.

A wakefulness maintaining apparatus supplies awakening stimuli based on detected drowsiness events.

An energy delivery catheter creates surgical perforations via superior vena cava access to bypass femoral vein contraindications.

A continuous glucose monitor applies a pre-determined gain function to sensor signals.

Dielectric buffering stabilizes wavelength in varying tissue types, enabling a large spherical ablation zone with predictable geometry.

An implantable device transmits aqueous humor to a contact lens sensor, enabling accurate non-invasive glucose monitoring without invasive blood draws.

Nested optical components within a flexible substrate enable accurate vessel detection without increasing instrument complexity.

Predefined fold locations on a catheter mapping balloon maintain predictable electrode positioning during expansion, resolving navigation accuracy trade-offs.

A myocardial excitation determining apparatus processes intracardiac electrocardiogram data into visualized pseudo action potential waveforms for automated analysis.

A metallic catheter shaft uses a tapered geometry and wall apertures to achieve targeted flexibility.