Guiding member for vascular catheters with a flexible link distal section
First Claim
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1. An elongated guiding member for a vascular catheter comprising:
- (a) an elongated core member having a tapered distal portion;
(b) a flexible length of interfitting links, each link having a base with an aperture and a plurality of arms which extend from the base and which have means to engage an adjacent link, with the distal portion of the core member extending through the apertures provided in the bases; and
(c) means to secure at least one end of the flexible length of interfitting links to the core member.
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Abstract
A guidewire or guiding element for vascular catheters, particularly balloon dilatation catheters having an elongated core member with a tapered distal portion with a flexible length of interfitting links on the tapered distal portion. The individual links generally comprise a base with an aperture therein and a plurality of upwardly extending arms with the ends of the arms bent inwardly toward the longitudinal axis of the flexible length to engage the base of an adjacent link. Improved flexibility and torquability are provided by the flexible length of interfitting links.
131 Citations
16 Claims
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1. An elongated guiding member for a vascular catheter comprising:
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(a) an elongated core member having a tapered distal portion; (b) a flexible length of interfitting links, each link having a base with an aperture and a plurality of arms which extend from the base and which have means to engage an adjacent link, with the distal portion of the core member extending through the apertures provided in the bases; and (c) means to secure at least one end of the flexible length of interfitting links to the core member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An elongated torquing member, comprising:
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(a) an elongated core member; (b) a flexible length of interfitting links, each link having a base with an aperture and a plurality of arms which extend from the base and which have means to engage the base of an adjacent link with the core member extending through the apertures provided in the bases thereof; and (c) means to secure at least one end of the flexible length of interfitting links to the core member. - View Dependent Claims (13, 14, 15, 16)
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Specification