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.

Tin-zinc solder resolves joining strength issues between tungsten components, preventing separation during medical procedures.

Nested guidewires allow stiffness adjustment without exchange, reducing procedure time and perforation risk.

A magnetically controllable medical device uses platinum cobalt alloys to enable precise remote navigation through tortuous vasculature.

Magnets on the guide wire catheter and blood pump distal tip align within the vasculature, reducing crossing profile and preventing heart valve trauma.

A detection indicator uses fluorescent dyes to change emission color upon contact with gastric fluid.

Integrated finger drive mechanism advances catheters through housing to enable single-handed needle control and reduce procedural complexity.

Spring-loaded collet fingers enable single-handed guidewire manipulation, eliminating the need for two-handed operation during complex vascular procedures.

Helical groove drum anchors guidewires to prevent slippage during insertion, enabling precise rotation in tortuous anatomy.

A dual medical guide wire uses an actuated guiding device to form precise curves at the distal ends for improved navigation.

Varied coil cross sections improve torque response while a radiopaque inner coil ensures visibility during navigation.

A segmented guide wire employs a flexible flat wire spring section to dissipate forces, reducing puncture risk and kinking in tubular medical probes.

A U-shaped guide wire directs an endoscope and surgical instrument into the pericardial cavity along separate paths.

Segmented cannula and articulated members resolve flexibility versus torsional rigidity trade-offs in medical wire guides.

A guidewire converter slides over an existing wire and locks via a collet to change diameter.

A medical device handle uses a sealing member and drainage tube to manage fluid flow around the drive shaft while preventing leakage.

Segmented dipole and loop antennas enable simultaneous tip and shaft visualization to prevent vessel puncture during interventional procedures.

A catheter tube with a dual chirality helix converts linear motion into rotational motion at the distal end.

A medical guide wire holder uses deflection members and contact surfaces to exert frictional resistance for secure retention.

A micro-fabricated medical device uses a non-helical cut pattern with distributed fenestrations to provide flexibility.

A mandrel extracts the centering function during coil formation, eliminating off-axis placement that causes unpredictable steering whipping.

Segmented design navigates tortuous paths while delivering impact force to clear vascular occlusions.