Guide Wires TRIZ Cases

A tethered mesh capturer contains intracranial emboli during retrieval, preventing distal particle migration while enabling safe vessel recanalization.

A spring-loaded torque device grips guidewires via a slidable actuator, reducing manual effort and preventing wire damage during procedures.

An asymmetric interlocking structure at the coil body base prevents detachment during insertion.

A dual-curved catheter navigates the aortic arch via radial artery access to reach both ascending and descending aorta through rotation.

An expandable cannula transitions from a collapsed profile to full diameter, enabling percutaneous cardiac support while reducing hemolysis risk.

Co-drawing distinct metals creates a robust core that embeds conductors, reducing assembly complexity and enhancing durability during coronary interventions.

An asymmetric shaft with arcuate projections reduces contact area and operation resistance in winding blood vessels while maintaining torque transmission.

Hydrophilic guidewire and internal lubrication port reduce friction during urethral navigation, preventing tissue trauma and false passages.

Integrating a distal pressure sensor with a wireless display unit eliminates bulky separate components to enable portable intravascular stenosis diagnosis.

A catheter handle uses a traveler mechanism to move an outer sheath along the longitudinal axis for controlled implant deployment.

A semi-tubular shaft transitions between open and closed configurations to secure medical instruments within a u-channel.

A reinforced multi-filar conductor bundle integrates high-strength filars with conductive copper strands to maintain electrical integrity within medical guidewires.

A slotted tubular member with segmented coating gaps enhances medical device flexibility and lubricity.

Fluororesin coating with embedded particulate matter forms surface protrusions on a medical guide wire to lower frictional resistance.

Segmented guide wire coils apply distinct tensile forces to prevent plastic deformation at sharp bends while preserving torque transmission.

Spirally twisted wires in the guidewire core distribute bending loads to prevent permanent deformation while maintaining structural strength.

Segmented baskets expand radially to form a cage around the clot, reducing vessel wall injury risk.

Elongate medical device transitions from flexible delivery to rigid shape using tension members and locking mechanisms.

A wire lock assembly secures medical guides via a non-linear pathway and snap-fit mechanism.

A sensor guide wire applies a polymer layer to its distal tip region to enhance surface smoothness and maneuverability within the body.

A guide wire distal end joint disperses radiopaque material to enhance X-ray visibility.

Segmented support portions maintain axial alignment while allowing independent coil rotation, resolving operability issues in stenosed vessels.

A tracking system overlays a virtual ray on CT scans to visualize sensor orientation and position during nasal procedures.

Three tapered facets on the piercing head create clean incisions that prevent septum relaxation, facilitating catheter passage.

A catheter uses shape memory polymers to adjust stiffness dynamically for navigation.

Nested flexible tubes joined at strategic points prevent plastic deformation in small vessels, ensuring accurate insertion.

Textured expansion apparatus prevents slippage during catheter insertion for stable device positioning.

Segmented polyurethane sponge strands nest within a drainage tube to resolve airway blockage risks during endoscopic placement.

Melted resin bonds the core and coil wires of a guidewire, eliminating tapered ends to reduce manufacturing complexity while maintaining flexibility.

Laser etching on the hypotube improves torque response while maintaining flexibility, resolving the trade-off between device portability and mechanical control.

Medical guide wires use electrochemical coloring and colored bands to create distinct visual markers for component identification.

A twisted flat ribbon wire forms an undulating circumferential profile on a medical guidewire tip to deliver precise tactile feedback during navigation.

A medical guide wire uses a combined truncated cone core to increase torsional moment at the distal end.

Cured sodium silicate coatings on guidewires eliminate PTFE delamination risks while maintaining surface lubricity.

Instrument uses visual feedback markings to resolve blind insertion errors and improve placement accuracy in deep anatomical sites.

Cold-worked Ni-Ti-Nb alloy stabilizes the martensitic phase to resolve low elastic modulus and poor torqueability in pseudo-elastic guide wires.

A medical guide wire uses a tapered helical coil to transmit rotational force and maintain structural integrity during navigation.

A pressure sensing guidewire integrates an optical fiber and deflectable polymer membrane to detect intravascular blood pressure.

Porous coil gaps anchor the guide wire distal end fixed portion, preventing solder flow while maintaining tensile strength.

Catheter-based thermal ablation creates a fistula between artery and vein, restoring blood flow without invasive surgical dissection.

Nested catheter components with dual sensors measure proximal and distal pressures to calculate fractional flow reserve without adenosine.

Strategic laser cuts improve kink resistance in stainless steel hypotubes, reducing manufacturing costs compared to nitinol alternatives.

A guide wire uses a thin coating film with alternating linear marker and resin portions to enhance visibility.

A guidewire uses a double coil structure to protect the core shaft while maintaining high torsional stiffness.

Heat treatment degrades superelasticity in the distal part, enabling reshaping while maintaining flexibility and strength.

Tangential bypass cuts in a guidewire tube reduce resilient forces, maintaining shaped distal tips during navigation.

Elongated slots in the tube wall redistribute stress to resolve the trade-off between pushability and vessel navigation.

Strain hardening reduces superelasticity in a nitinol guide wire tip to enable permanent finger shaping.