Catheter deflection anchor
AssigneeMedtronic Ablation Frontiers LLC
InventorsMark Allen BENSCOTER, Stuart Brahm KOZLICK, Jeremy David DANDO
Life of this patent
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Abstract
A system and method for anchoring a round catheter pull wire within the distal end of a catheter. A steering deflection mechanism includes a pull ring having a plurality of apertures and one or more receiving slots. The method includes affixing one or more round pull wires to the one or more receiving slots of the pull ring. The shape of the round wire and manner of affixing the wire to the pull ring provide a steering assembly that can withstand greater pull forces while maintaining design integrity.
Claims20
A catheter steering device, the device comprising:
- a substantially annular band having an outer surface and an inner surface and defining a receiving slot that extends between the outer surface and the inner surface, the receiving slot being sized to longitudinally receive a portion of wire having a circular cross section.
A catheter steering assembly, the assembly including:
- a catheter pull wire having a distal end, a proximal end, and a length therebetween, the distal end, the proximal end, and the length each having a circular cross section;
- and
- a continuous annular band including an inner face and an outer face and defining at least one receiving slot extending between the inner face and the outer face, the at least one receiving slot being sized to receive the distal end of the catheter pull wire.
A catheter steering assembly, the assembly including:
- a catheter pull wire having a distal end, a proximal end, and a length therebetween, the distal end including a substantially spherical knob defining a maximum diameter, the proximal end and the length each having a circular cross section defining a diameter that is less than the maximum diameter of the substantially spherical knob;
- and
- a continuous annular band defining a keyhole-shaped receiving slot, a widest part of the keyhole-shaped receiving slot being sized to receive the substantially spherical knob of the distal end of the catheter pull wire.
Dependencies are inferred from the claim text.