Guide Wires TRIZ Cases

A mapping catheter electrically detects tissue activity to locate the phrenic nerve during cardiac procedures.

Segmented coil design improves torque transmissibility in narrow stenosis by preventing plastic deformation at the tip through local quality differentiation.

A guide wire employs a tubular joint member to cover core shaft connections, reducing rigidity gaps and preventing deformation at the joint part.

A steerable medical instrument uses optical fiber sensors to track distal tip placement within patient vasculature.

Segmenting the core wire into stiff and flexible sections reduces bending artefacts in intravascular measurements.

A spool element with a channel and handle dispenses coiled guidewires, reducing contamination risk during insertion.

A capture device enables guidewire passage through occluded vessels using controlled antegrade and retrograde tracking.

Inclined outer coil turns on a medical guide wire improve safety and operability by enabling passage through microchannels in completely occluded lesions.

Interlayer voids in stacked films resolve rigidity trade-offs, enabling easy bending through complex vessels.

Recessed core portions seat coiled members to eliminate solder bumps, reducing profile and improving navigation through tortuous vasculature.

Reflowed insulative elements bond electrical contacts in a proximal connector, preventing moisture ingress and ensuring reliable signal transmission.

Segmented guidewire design with polymer fiber optics enables precise blood pressure measurement while maintaining flexibility for vascular navigation.

A detachable tip microcatheter uses a thermoplastic sleeve to connect the distal tip to the catheter body.

Oppositely polar magnets at dual catheter tips align and pair lumens to guide guidewires, reducing hemorrhage risk from extravascular puncture.

A sensor mounting assembly aligns physiological sensors within an internal mount and external housing structure.

Matching strain parameters between superelastic and plastic core shafts prevents joint detachment under tensile load.

A catheter with a spiral drive shaft rotates a cutting member to remove obstructive objects from body lumens.

A guide wire tip uses alternating radiopaque and non-radiopaque coils to create a visible marker pattern under fluoroscopy.

A hydrodynamic catheter rotates eccentrically around an external guidewire to expand its treatment delivery footprint without increasing device diameter.

A coupling wire guide features a resilient distal tip that transitions between aligned and non-aligned positions to slide along a primary wire.

A tapered access assist device with microperforations facilitates smooth catheter navigation through vasculature.

A guidewire receiving member transmits torque to control a distal cap position within an intravascular delivery system.

An elastic member biases the cannula distally relative to the stability collet, preventing premature delivery and reducing waste caused by improper alignment.

Radial contraction of a flexible sleeve grips catheters securely, eliminating damage from excessive axial pressure during minimally invasive procedures.

A tissue-removing catheter uses a turbine to rotate the cutting element at high speeds.

An alignment adaptor with a central channel and slit design facilitates threading miniature vascular introducer sheaths over thin guidewires.

Coiled infusion catheter maintains sustained clot contact via shape memory recoil to resolve delivery and reliability trade-offs.

Switchable blocking means in the torque body enable precise positioning without axial removal, resolving stability versus accessibility trade-offs.

Segmenting the distal end into zones with varying radii of curvature resolves positioning accuracy trade-offs by reducing instrument-induced deflection.

Weakened points from buckling or bending stress lower flexural rigidity in the distal end piece, avoiding expensive grinding operations.

A guidewire locking device uses a channel with frictional surfaces to immobilize the wire.

Independent sheath and guidewire drivers resolve control precision versus device complexity contradictions in tortuous anatomy navigation.

Metal solder joins the guidewire core shaft and coil body to form a tapered distal tip, preserving mechanical strength against heat-induced annealing.

Embedded optical fibers detect guidewire curvature changes to predict structural fatigue, preventing kinking or breaking during vascular interventions.

Magnetic coupling aligns dual catheters to create a continuous channel, enabling secure filter grasping and controlled removal without fracture.

A vascular optical fiber guidewire uses a cladding layer to leak light for side illumination.

A guide wire uses a longitudinally movable outer coil to deploy an anchor member for secure positioning.

Crimped jacket end portions increase coil contact area, resolving weak attachment issues in intravascular sensor guide wire manufacturing.

Cross-linking a block copolymer with epoxy groups creates a durable network structure that maintains surface lubricity for sliding medical instruments.

A guide wire second shaft features a variable hardness portion that gradually decreases from the distal end to improve structural integrity.

A nested coil guidewire structure transmits torque through an inner and outer coil assembly surrounding a core shaft.

Radiopaque identification device improves guidewire visibility, reducing risk of unintended tissue damage during transseptal puncture.

A guide wire uses a flexible inner member to exert friction within the shaft, securing the actuation segment.

Segmented stranded wires merge to balance torque transmission with vessel navigation, preventing breakage at the distal tip.

A reentry catheter with side tubes advances a guidewire through an exit aperture to redirect the wire from a subintimal tract into a true lumen.

Electrical severing replaces mechanical detachment mechanisms, reducing procedural time and preventing microcatheter migration during aneurysm treatment.

A holding device secures elongated medical instruments using a resilient retention arm and seat to prevent longitudinal movement.