Guide Wires TRIZ Cases

A flexible infusion flow guidewire system with rearwardly directed jet orifices delivers high-pressure fluid streams.

Catheter actuator replaces mechanical cables with electronic control, reducing diameter and improving navigation through narrow body lumens.

An elastic body in the drive mechanism generates restoring force to advance guide wires through occluded vascular segments.

Pre-forming a distal knuckle resists further advancement into microscopic vessels and reduces load on the blood vessel wall.

Segmented wire guide core wire anchors in body vessels to maintain position, resolving axial stiffness versus diameter trade-offs.

A guide wire core combines stainless steel and Ni-Ti alloy segments to transmit torque while bending at the distal end.

A re-entry catheter flap redirects a guidewire through a side port, eliminating complex tool exchanges during chronic total occlusion crossing.

A coiled guidewire carrier transitions to a linear state, multiplying slider movement into extended wire advancement.

A flexible guide wire extension attaches to a shape memory polymer actuator to enhance maneuverability through tortuous vascular paths.

A catheter-mounted fluid jet prong cuts arterial dissection septums laterally, reducing heart stress and organ dysfunction from open surgery.

Integrating a battery into the disposable sensor guide wire eliminates manual replacement and ensures consistent power supply during intravascular measurements.

A valve insertion device uses a pressure sensor to detect fluid dynamics near the outflow of an intraluminal passage.

Segmenting the outer coil into tapered and uniform sections prevents interference with the inner coil, maintaining flexibility during insertion.

Distinct melting points in brazing members prevent thermal deformation of the distal-most end during assembly, ensuring reliable shape retention.

A resilient loop tip deforms to navigate tortuous medical vessels while maintaining a stable path.

A guide wire projection tapers toward the proximal end to maintain structural integrity with the resin coating layer.

Segmented drive mechanism separates axial propulsion from rotational torque delivery, resolving independent motion control trade-offs.

Helical coloring on the guide wire surface absorbs light to eliminate halation and improve endoscopic visibility.

Dual-blade micro-cutting machine shapes polymer stock into medical guidewires, resolving manufacturing precision issues from stock material imperfections.

Segmented bearings enable controlled locking of wire catheters, resolving trade-offs between manipulation ease and device complexity.

A braided support structure integrates fragile conductive wires into the catheter shaft, protecting them from electrostatic damage during assembly.

A steerable catheter tip uses a circumferential V-shaped void to guide multiple embedded guidewires through a control shell.

Flexible printed circuit board suspends pressure sensor to isolate torsional forces and stabilize distal pressure measurements.

Slotted internal and external tubes enable multi-directional bending via axial movement, eliminating pull wires while maintaining torque transmission.

Break-away discontinuities in a double-ended wire guide allow segmenting the device during procedures to reduce inventory complexity.

A steerable guide wire features an expandable assembly and pivotable joint to deliver temporary vessel occlusion.

Abutting portions on the catheter body contact the aortic inner wall to suppress heart-induced vibrations and maintain consistent impedance.

A multi-layer torque coil embeds signal conductors within helically wound filars to transmit electrical signals between proximal and distal ends.

Integrated stiffening stylet prevents kinking in unsupported distal regions while maintaining guidewire compatibility through nested packaging.