Guide Wires TRIZ Cases

Segmented electro-active polymer actuators induce localized vibrations to resolve orientation ambiguity in ultrasound imaging.

Controller switches drive mechanism modes to free stuck atherectomy burrs while preventing vessel wall damage.

A copper alloy lead wire with a low-friction insulating layer enables smooth insertion into small-diameter medical tubes.

Nested conductors maintain electrical connectivity while the electroactive polymer enables infinite rotation for navigating tortuous lumen geometries.

Segmented jacket apertures allow entrapped air to escape, ensuring complete wetting of the intravascular sensor element.

Segmented corewire stiffness and composite coil construction balance support capability with navigation ease, reducing kinking while accessing sinus ostia.

A customized alignment device guides intermittent urinary catheters into the urethral orifice, resolving insertion difficulty for female patients.

An articulating jaw device rotates to grasp tissue and delivers thermal energy for vessel welding.

A tapered guide catheter with a hydrophilic inner surface facilitates smooth wire passage, resolving placement difficulties caused by strictures.

Thermal reflow fuses a polymer jacket to a tapered core wire, maintaining longitudinal stiffness while enabling navigation through narrow vasculature.

A segmented guide wire core uses a superelastic alloy distal section and rigid proximal section joined by welding.

An uneven noble metal plating layer on the guidewire coil body increases solder wettability to prevent core shaft separation.

Segmented tubular member with varying ring widths distributes stress, resolving the trade-off between flexibility and structural integrity.

A curved distal section redirects the piercing stylet after septum puncture, preventing inadvertent contact with surrounding biological walls during deployment.

An integrated guide wire insertion device combines an injection unit with a transfer mechanism to enable precise catheter placement.

Bifurcated proximal housing merges distal lumens to eliminate guide wire interference while maintaining over-the-wire flexibility.

A guide wire uses a spiral coil with a smaller intermediate portion to curve at desired positions.

A self-expanding guide wire integrates radio-opaque markers and electronic sensors to provide real-time spatial feedback during vascular navigation.

Hydrophilic silicone coating minimizes pressure drift by reducing bubble retention, enhancing measurement accuracy.

Movable connection pieces enable transverse insertion of electronic components, resolving the trade-off between functional capability and device complexity.

A flexible placement tool guides a drainage tube through a lateral opening and central lumen to reach body cavities.

A gripper uses opposing components to compress elongated members for secure holding.

A catheter guidewire integrates a fluid channel within the core wire to enable targeted liquid delivery through the distal helix tip.

Asymmetric coil sheath cross-section reduces wire elastic deformation and frictional resistance, enhancing endoscope bending maneuverability.

A sphincterotome device with multiple lumens enables simultaneous guidewire manipulation during endoscopic procedures.

A guidewire integrates a CMOS sensor and objective lens into its inserting portion for real-time internal visualization.

A flexible guidewire uses a tapered hollow tube and external tubular spring to maintain structural integrity.

A radial capacitive pressure sensing structure detects blood vessel pressure changes using a flexible membrane and conductive member.

A sensor guide wire jacket features apertures and slots to allow fluid passage while supporting a suspended sensor element.

A guidewire safety device grips the wire automatically via a spring-loaded collet integrated into the catheter hub.

Grooves in the transition portion reduce rigidity changes, preventing twisting and buckling while ensuring effective torque transmission.

A guidewire anchoring mechanism secures an indwelling urinary catheter through a collapsible section that transitions between insertion and anchored states.

A guidewire capture sheath with an eccentric cone directs wires into catheters while maintaining blood flow.

An adjustment mechanism manages wire tension via a twisted multi-lumen tube, resolving instability from loosening or excessive force.

A tubular member uses temperature-dependent phase transitions to provide superelastic navigation through tortuous anatomy.

Segmented wave cuts prevent winding and unwinding, enabling 1:1 torque response in tortuous vasculature.

Nested microsensors inside flexible tubular members maintain guidewire pushability and steerability while enabling real-time tracking.