Patent
Guiding member with deflectable tip
TLDR
In this paper, a guiding member for vascular catheters, particularly dilatation catheter for angioplasty procedures having a deflectable tip, is described, where the core wire is secured to the coil at a location distally of the expanded section but proximally to the distal tip of the coil.Abstract:
The invention is directed to a guiding member for vascular catheters, particularly dilatation catheters for angioplasty procedures having a deflectable tip. The guiding member generally includes an elongated core wire (11) having a tapered distal portion (14), a coil (13) encasing at least part of the tapered distal portion of a core wire. The coil has an expanded section (16), and a reference member (18) disposed therein which is secured to the coil proximally and distally of the expanded coil section. The core wire is secured to the coil at a location distally of the expanded section but proximally to the distal tip of the coil. Relative axial movement between the core wire and the coil causes expansion or contraction of the expanded coil section which results in tip deflection.read more
Citations
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Patent
Steerable medical device
TL;DR: In this article, an elongate steerable implement (10, 45, 60, 76) is dislcosed, which may be either a steerable guidewire or catheter for coronary angioplasty applications.
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References
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Patent
Steerable guidewire with deflectable tip
TL;DR: In this paper, the authors present a steerable guidewire which consists of flexible tubing having proximal and distal ends and inner and outer surfaces, a helically wound flexible spring coil having proximities, the proximal end of the spring coil being attached to the flexible tubing and the distal end of a spring coil comprising stretched coils.
Patent
Floppy guide wire with opaque tip
TL;DR: In this paper, a flexible elongate flexible element with a cylindrical proximal portion, a tapered intermediate portion and a flattened distal portion is secured to a substantially radiopaque material.
Patent
Small diameter steerable guidewire with adjustable tip
TL;DR: In this paper, a small diameter steerable guidewire for cardiovascular surgical procedures or the like is provided with a means by which the curvature at the distal tip of the guidance can be adjustable by control applied at the proximal end of the guide.
Patent
Multi-mode guidewire
Alvaro E. Arenas,Caius C. Hooker +1 more
TL;DR: The multi-mode guidewire selectively allows the creation of varying degrees of flexibility at varying locations of the guidewires as mentioned in this paper, which can be used to advance a catheter.
Patent
Variable stiffness guide wire
TL;DR: In this paper, a guide wire capable of being adjusted to provide variable stiffness for catheterizing arterial branches comprises an elongated helical wire coil with a plurality of core wires contained within and joined to the outer wire coil at their distal ends; at their proximal ends there is a handle having two elements which are movable relative to each other connected respectively to the inner core wires and to the wire coil.