US 6,602,208 B2 · Guidewire with tubular connector

Abstract

An improved guidewire for advancing a catheter within a body lumen which has a high strength proximal core section, a flexible distal core section preferably formed of pseudoelastic alloy and a connecting element to provide a torque transmitting coupling between the distal end of the proximal core section and the proximal end of the distal core section. The ends of the core sections are secured within the inner lumen of the connecting element by means of a hardened mass of bonding material. The wall of the connecting element is provided with an opening to facilitate the introduction of the hardenable bonding material in the pourable state into the inner lumen of the connecting element. Preferably at least one of the ends of the core sections are configured, e.g. enlarged in at least one dimension compared to an adjacent part of the core section, to develop a mechanical interlock within the mass of hardened material.

Claims14

Dependent claims

An elongated guidewire comprising:

an elongated core member having a proximal core section with proximal and distal ends and formed from a first material and a distal core section with proximal and distal ends and formed from a second material different than the first material, wherein at least one of the distal end of the proximal core section and the proximal end of the distal core section has at least one transverse dimension greater than a transverse dimension of a portion of an adjacent section;
a connecting element formed at least in part from a polymeric material and disposed on the distal end of the proximal core section and the proximal end of the distal core section and configured to produce a torque transmitting relationship between the distal end of the proximal core section and the proximal end of the distal core section;
wherein a hardenable material contained within the connecting element forms a mechanical interlock with the distal end of the proximal core section.

Dependencies are inferred from the claim text.

Guidewire with tubular connector

Life of this patent

Guidewire with tubular connector

Life of this patent

Abstract

Claims14