Guide Wires TRIZ Cases

Binder-bound ferrite granules replace sintered cores, enabling a 0.9 mm or smaller probe coil with usable magnetic permeability.

A core wire fixing member keeps exposed wires precisely spaced for electrode bonding, improving compact connection reliability and moisture sealing.

Transverse translation engages guidewire contacts at once, reducing blade wear, easing handling, and lowering breakage risk.

Ferrite granules packed into a tiny coil tube raise magnetic permeability, enabling sub-150 micron probes for navigation in small vessels.

A transversely moving connecting element engages guidewire contacts without longitudinal friction, reducing blade wear and breakage risk.

A flexible and stiff magnetic micro-robot steers guidewires through wide vessel angles without buckling or guidewire replacement.

Ferrite powder granules inside a thin coil probe boost magnetic sensitivity, enabling sub-150 micron navigation in small vessels and lung extremities.

A translating two-piece connector secures an electronic guidewire while allowing detachment for better handling and lower breakage risk.

Variable laser-cut pitch and cut length give intravascular tubes distal flexibility and proximal torque transmission for tortuous anatomy.

Tapered laser-cut tube slots help a guidewire reach tighter bending radii without kinking while preserving torsional rigidity and tensile strength.

Solid-phase joining with controlled crystal grain distribution strengthens the Ni-Ti guide wire joint to resist bending and improve torque transmission.

Staged force during resistance welding stabilizes solid-state joining of nitinol and stainless steel, improving weld strength and consistency.

Varying laser-cut pitch and cut length along an intravascular tube improves distal flexibility, torque transfer, and structural integrity.

Tapered laser-cut tube slots form rings and beams that let a guidewire bend tightly without kinking while preserving torque and tensile strength.

A follow-up force after resistance heating joins nitinol and stainless steel guide wire segments in solid state, improving weld consistency.

Dimples on the distal solder joint improve fibrous CTO penetration while preserving guidewire steerability, support, and tactile feedback.

Electrical current plus follow-up axial force joins nitinol and stainless steel guide wire segments with less melting risk and a smaller heat-affected zone.

Dimples on the distal solder joint improve fibrous CTO engagement while preserving torque response, steerability, and distal support.

A radiopaque inner coil and flexible outer coil improve distal support, fluoroscopic visibility, and steerability in tortuous vessels.

A support platform and spring-linked angled cutter head shape thin guide wires to accurate bend angles and lengths with less manual error.

Gradual core tapering and a radiopaque inner coil improve fluoroscopic tip tracking, steerability, and distal support in tortuous vessels.

Cold-worked linear pseudoelastic Ni-Ti makes a guidewire tip shapeable, durable, and solderable for navigating tortuous anatomy.

A nickel-alloy transition tube joins Nitinol and stainless steel hypotubes to avoid brittle welds while preserving torque, flexibility, and a consistent lumen.

Torquing a flat wire coil on a solid core mandrel creates tension that shrinks the inner diameter, reduces radial gap, and prevents coil jumping.

Cold-worked linear pseudoelastic Ni-Ti lets a guide wire tip be shaped and soldered while resisting permanent deformation in tortuous vessels.

Cold-worked linear pseudoelastic Ni-Ti makes the guidewire distal section shapeable for tortuous anatomy while preserving kink resistance and torque transmission.

Mechanical anchoring and polymer covering secure multilayer torque coils without solder or brazing, avoiding core heat damage while preserving flexibility.

A follow-up force during resistance welding joins nitinol and stainless steel with a larger weld nugget, lower heat impact, and better kink resistance.

Laser-welded Nitinol and stainless steel or MP35N hypotubes balance stiffness, torque transmission, and kink resistance while keeping diameters consistent.

A stranded medical manipulation rope uses controlled forming rate and flattened spiral side wires to improve torque transfer while limiting friction damage.

Oval side wires with controlled flatness improve torque transmission and flexibility in medical manipulation ropes while limiting energy loss.

A low-impedance body electrode and current-limited feedback cancel intra-body sensor interference while keeping patient current safe.

A distal coil with region-specific filar diameters balances flexibility and stiffness to navigate tortuous anatomy while minimizing buckling.

A multilayer lubricating coating improves adhesion and sliding durability on flexible medical instruments without sacrificing bendability.

Dual-pass cutting rounds beam edges in intravascular members, reducing weak points to improve flexibility, fatigue life, and cut accuracy.

An in-situ shape-changing guide wire anchors within tortuous vessels to improve traction, placement stability, and large-device delivery.

A support member, collapsible sleeve, and translation handle let clinicians check VAD patency one-handed without removing the device.

A deformable accessory with frictional apertures keeps guidewires and catheters separated, reducing twisting, entanglement, and accidental movement.

Dual sleeves, a sterile barrier, and a thumb wheel let one hand feed and retrieve a guidewire while reducing contamination and damage.

A dual-coil guide wire localizes distal bending under vessel resistance, reducing proximal kink spread while preserving flexibility and torquability.

An expandable guide wire compresses a variably flexible distal catheter section to hold a stable curve for navigation through tortuous vessels.

A primer-backed conductive coating creates a reliable sphincterotome return path on hydrophobic catheter surfaces without blocking lumen visibility.

A magnetized martensitic stainless steel distal shaft enables accurate in-body position detection without added coils, bulk, or external fields.

A flexible dilator with staged stiffness and guidewire support enables stable transseptal puncture while preserving sheath curvature and reducing device exchanges.

A steerable tapered dilator guides a delivery catheter over one guidewire, reducing exchanges while preserving payload and navigation in tortuous vessels.

Reinforcement learning generates vascular branch training data so control models can guide instruments precisely while reducing practitioner radiation exposure.

An offset operation wire lets one guidewire vary bending and stiffness inside vessels, reducing wire exchanges and manual tip shaping.

A loosely wound guidewire coil with tuned pitch and diameter ratios prevents distal-end set and wire radial shift during repeated shaping.

A reverse-curve guidewire reduces delivery device contact during valve withdrawal while preserving precise implant positioning and stability.

A flexible distal guidewire segment disperses tenting force and stays parallel to the myocardium for safer epicardial access.

An angled through-hole and joined entry member strengthen the loop portion, improving structural stability and lesion handling.

Longitudinal drive and guide rollers create line contact that reduces medical wire slip during translation and axial rotation.

Vacuum- or pressure-driven shaft rigidization reduces GI looping, improving endoscope advancement and precise access in curved anatomy.

A curved asymmetric distal protrusion improves guide wire penetration in hard lesions by rotating to cut resistance while protecting vessel walls.

Vacuum suction pulls the pericardium away from the heart, enabling controlled percutaneous drainage with lower cardiac injury risk.

A guidewire with a curved deflection section directs the tip into the superficial femoral artery.

A guide wire distal portion uses a rectangular cross section to maintain column strength during vascular navigation.

An electromechanical actuator generates multimodal vibrations and rotational movements to reduce frictional forces during guidewire advancement.