Guide Wires TRIZ Cases

Eccentric recesses in a pull wire ring guide ancillary elements past the distal end without obstructing the main lumen.

A transseptal guidewire with a pre-formed curved distal tip navigates the fossa ovalis to perforate the intra-atrial septum.

A proximally oriented cavity captures residual clots during retrieval, preventing distal emboli migration while maintaining vessel patency.

Segmented guidewire with expandable element spans left ventricle apex to prevent perforation risk during transcatheter aortic valve implantation.

A catheter guide wire embeds granular material to form radio-opaque and transparent zones for vascular length measurement.

Offset steering lumens and embedded stabilization elements create intersecting planes that resist lateral deflection during navigation.

Segmenting the plunger into a body and elastic seal valve prevents air leakage, enabling pre-installed guidewire placement for precise control.

Segmented engaging members distribute pressure to prevent lumen deformation while the actuator enables single-handed repositioning.

A clot encasement device uses a central stabilizer to manipulate and sequester vascular obstructions within capture members.

Coupled translation modules enable independent movement of flexible medical elements while maintaining synchronization across multiple drive paths.

Segmented intersecting filaments create a grid marker that distinguishes rotation from axial movement, resolving steerability ambiguity.

Asymmetric sleeve structure directs optical fiber guidewire bending, improving maneuverability in small vessels.

Segmented guidewires prevent kinking and vessel perforation during total occlusion crossing.

A locking member joins stainless steel and Nitinol guide wire sections through mechanical interlocking, resolving welding incompatibility.

An operation member changes the interval between wire rods in the inner coil, resolving the trade-off between navigability and stenosis detection.

Segmented tube walls with a nested elastic sleeve enable easy guidewire removal while preventing tissue damage from open slit edges.

An angled sensor carrier replaces fluoroscopy with electromagnetic tracking, enabling precise blood pump positioning without radiation exposure.

A medical assistance device uses a rotating length adjustment unit to wind or unwind an elongated body for precise reach control.

Replacing corrosive flux soldering with adhesive bonding eliminates manufacturing complexity and device failure risks in intravascular guide wires.

Reciprocating one-way gripping valves advance catheters through tissues while preventing buckling and maintaining a sterile field during insertion.

A medical guide wire uses a eutectic alloy to join the core wire and helical spring body.

A flexible distal portion with a stretch-resistant tube prevents elongation during navigation, ensuring stability in tortuous anatomy.

A three-dimensional atraumatic guidewire tip distributes stress across cardiac structures using spherical or oblong coil geometries.