Guide Wires TRIZ Cases

Processing circuitry extracts characteristic sites from medical image data to determine catheter tip end direction along the insertion path.

Segmented jaw mechanism engages guide wire via spring-loaded biasing, resolving complexity trade-offs in surgical tool operation.

Segmented design exposes the nitinol core at the distal end for kink resistance while retaining the stainless steel sheath proximally to improve pushability.

An open-cell capturing member engages emboli without fragmenting them, preventing vessel dissection and hemorrhage while restoring blood flow.

Fiber optic guidewire transmits laser energy through a variable stiffness hypotube to ablate vascular obstructions.

A segmented guidewire combines a stainless steel core with a superelastic Nitinol tip to enhance pushability and flexibility.

Dual-blade micro-cutting machine uses optical feedback to cut non-conductive plastic stock, resolving precision limits of single-blade systems.

A coaxial electrosurgical probe delivers microwave energy for tissue coagulation while dispensing liquid medicine through a hollow inner conductor.

A tapered catheter body uses a composite structural support member to maintain navigability through tortuous vasculature.

A motorized guidewire manipulation device uses a tandem roller assembly to drive rotation and provide consistent traction.

A catheter control mechanism converts rotational motion into precise linear actuation to adjust the distal tip curvature.

Reversing the intraluminal member direction prevents vein entanglement and optimizes sclerosant delivery precision.

Embedded light sources enable visual identification of catheter opening positions through external photography.

A multi-guidewire sheath uses a rotating hub with wire-lock engagement points to secure independent guidewire positions within a single lumen.

Uneven helical patterns in the resin coating improve visibility and reduce frictional resistance against catheters by minimizing contact area.

Nested lumens and stiffening elements preserve axial stiffness while the braided sheath ensures circular symmetric bending for interventional procedures.

A guidewire shaft uses a composite distal segment combining a soft outer layer with a rigid inner core to achieve optimal torqueability and pushability.

Curved drive shaft expands effective cutting diameter to remove objects from larger body lumens.

Adjacent coil turns contact on the curved section outer side to prevent lesion fragment entrapment and improve passing performance through stenosis portions.

A guidewire design positions an optical pressure sensor at a distal offset to maintain flexibility during navigation.

An optically transmissive guide wire prevents back shadows during imaging, enabling clear visualization of blood vessel walls without blind spots.

Segmented openings enhance distal bending flexibility while a locking element prevents core wire separation during navigation.

A guide wire joint member connects a cylindrical member to the wire body using a gradually decreasing outer diameter profile.

A flexible multi-lumen endoscope integrates imaging and spray delivery for nasal insertion.

Adhesive-coupled rectangular substrate forms a tube for a wound coil, increasing sensitivity without enlarging device volume.

Helical ridges convert linear actuator motion into rotation, reducing friction during catheter insertion.

A catheter advancement device uses a protective capsule to shield the blood vessel wall during insertion.

An infrared illuminated guidewire transmits light through patient tissue to enable external camera detection of the distal end position.

Axial vibration from a voice coil actuator lowers insertion force and tissue deformation, enabling reliable vascular access in collapsed veins.

Imaging-controlled dual-blade cutting produces consistent beam widths for plastic and metal catheters, resolving conductivity limitations.

Optimizing side wire forming rate and flatness improves torque transmittability in medical manipulation devices.

A catheter system enables antegrade mitral valve deployment through a percutaneous left atrium route.

A coaxial guide wire uses a central conductive core wrapped in an insulating layer to transmit signals.

Mechanically interlocking serrations join stainless steel and nitinol guidewire sections, reducing stiffness discontinuities.

An integrated catheter combines an intravascular ultrasound sensor and a guide wire within a single shaft to unify imaging and treatment functions.

A variable stiffness wire guide adjusts flexibility via an inner coil and shaft element to navigate tortuous vessels without damaging linings.

Divergent coil pitches in space wound portions prevent strand engagement while improving plastic deformation properties for navigating tortuous vessels.

Segmented concentric tubes resolve strength versus adaptability contradictions for navigating tortuous vessels.

An adapter widens a saddle slit to merge the catheter onto a locked guidewire, maintaining treatment site access.

Rotating actuator drives translating assembly to position guide wire, reducing surgeon fatigue during transcatheter valve replacement.

Electroactive polymer sleeve adjusts hypotube compressive strength via ion insertion, resolving flexibility trade-offs.

A steerable intraluminal device features a guidewire tip capable of 360° deflection controlled by a handle mechanism.

Segmented guidewire connectors nest conductors within tubular walls, resolving stiffness trade-offs while enabling precise pressure measurement.

Electromagnetic tracking registers with 3D CT data to render virtual views, resolving registration difficulties in image-guided surgery.

Continuous reel-to-reel processing creates variable flexibility segments without discrete joints, eliminating fusion failures.

Segmented implantable catheters preserve venous patency and reduce thrombosis risk during repeated hemodialysis treatments.

Segmented elastomeric tubing transitions between open and sealed states to reduce friction during repeated catheter passage while maintaining blood sealing.

A guidewire management device uses a sterile barrier to protect the wire during advancement.

Translating the sensor within the lumen eliminates re-crossing lesions, reducing procedural time and complexity during stenosis assessment.

A guide wire apparatus detects fetal descent via a fixed-position sensor to provide real-time maternal feedback.