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.

A probe with measurement sensors draws through a tube to record pressure data at various locations.

Opposite winding binding tape stabilizes electrical characteristics and straight-advancing properties in reduced diameter catheter wires.

A guide wire distal end flat portion shapes the second core shaft perpendicular to the joint part, preventing torsion during bending.

Integrating the coil directly onto the core wire eliminates brazing irregularities while variable cross-sections allow precise bending rigidity control.

A microcatheter guidewire unit uses two wires of different rigidity to probe and drill through vascular occlusions.

A dual-blade micro-cutting machine controls cutting processes to produce consistent guidewire dimensions.

Tapered distal portions and microperforations release fluid to propel the catheter, reducing friction and eliminating the shelf effect at vessel ledges.

An everted flexible membrane captures emboli without fragmentation, preventing vessel dissection and hemorrhage while restoring blood flow.

A deflectable stylet integrates a bend-enhancing region and control member to resolve the trade-off between flexibility and precision in cardiac catheters.

Embedding contrast particles in a non-metallic composite rod enables visibility in magnetic resonance imaging without inducing heating artifacts.

Traction wires connected to a rotary casing adjust the guidewire output portion angle, enabling stable navigation through complex anatomical corners.

Resin filling between inner and outer coils prevents mutual interference, maintaining flexibility while avoiding deformation.

Non-convex safety wires contact the mandrel tip to stop protrusion through the coil during vascular navigation.

Rotatable lever applies guidewire tension to maintain catheter tip deflection, preventing slippage during medical procedures.

Segmented wire guide uses a flexible proximal portion to collapse through an endoscope accessory port.

A hollow stranded-wire coil surrounds the core shaft to improve resilience, preventing residual angles after bending for smoother operation.

Integrated tissue disruption and vacuum suction mechanisms draw endometrial samples into the sheath, improving specimen accuracy while reducing procedure time.

Orientation blocks in the input device determine catheter tip orientation, resolving insufficient precision in complex surgical procedures.

Slant-faced convex and concave wire ends allow the medical coil to approach each other under compression, reducing tissue load and preventing buckling.

A stylet core uses varying wire strand counts and twist patterns to modulate stiffness along its length.

Segmented pusher wires with varying stiffness reduce detachment zone bending and micro-catheter kickback during embolic coil deployment.

An external guide system positions and orients percutaneous bone wires using independent six-degree-of-freedom control mechanisms.

Segmented catheter shaft buckles at controlled force to prevent cardiac tissue perforation during electrophysiology procedures.

A multichannel cannula guides a stabilizing wire to deliver substances directly into bone fractures.

Conical guide portion urges wire into concentric contact with pusher, preventing withdrawal during drill bit exchanges.

A catheter delivery guidewire clamp secures the wire during rapid exchange procedures.