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US 12,721,976 B2Granted
Guidewire devices having shapeable tips and bypass cuts
AssigneeScientia Vascular, LLC
InventorsJohn A. Lippert, Edward J. Snyder, Clark C. Davis
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to guidewire devices having shapeable tips and effective torquability. A guidewire device includes a core having a proximal section and a tapered distal section. A tube structure is coupled to the core such that the tapered distal section extends into the tube structure. The tube structure includes a plurality of bypass cuts formed tangentially within the tube structure to increase the flexibility of the tube structure and to reduce the tendency of resilient forces from the tube structure to disrupt a shaped distal tip of the guidewire device.
Claims10
A guidewire device comprising:
- a core including a proximal section and a distal section;
- a tube structure coupled to the core such that the distal section of the core passes into the tube structure, the tube structure comprising a first section, a second section distal of the first section, and a third section distal of the second section;
- and
- an adhesive disposed at a distal end of the tube structure that couples the tube structure to the core, wherein the adhesive extends into the third section of the tube and is not disposed in the second section,
- wherein the tube structure includes a plurality of cuts extending transversely into the tube structure, each cut forming one or more beams defined by a remaining section of tube material, each beam connecting two adjacent rings of tube material,
- wherein the first section of the tube structure includes two or more beams between adjacent rings, the beams of the first section being arranged to avoid a preferred bending plane in the first section,
- wherein the second section of the tube structure includes a single beam between adjacent rings, the single beam being the only beam between each pair of adjacent rings of the second section, the beams of the second section being arranged to form a preferred bending plane in the second section,
- wherein the third section of the tube structure includes two or more beams between adjacent rings,
- wherein at least a portion of the distal section of the core passing through the second section of the tube is a flat ribbon having a major plane lying perpendicular to the preferred bending plane.
6 more elements
A guidewire device comprising:
- a core including a proximal section and a distal section;
- a tube structure coupled to the core such that the distal section of the core passes into the tube structure, the tube structure comprising a first section, a second section distal of the first section, and a third section distal of the second section;
- and
- an adhesive disposed at a distal end of the tube structure that couples the tube structure to the core, wherein the adhesive extends into the third section of the tube and is not disposed in the second section,
- wherein the tube structure includes a plurality of cuts extending transversely into the tube structure, each cut forming one or more beams defined by a remaining section of tube material, each beam connecting two adjacent rings of tube material,
- wherein the first section of the tube structure is a two-beam section with two beams between adjacent rings, the beams of the first section being arranged to avoid a preferred bending plane in the first section,
- wherein the second section of the tube structure is a one-beam section with a single beam between adjacent rings, the single beam being the only beam between each pair of adjacent rings of the second section, the beams of the second section being arranged to form a preferred bending plane in the second section,
- wherein the third section of the tube structure is a two-beam section with two beams between adjacent rings,
- wherein at least a portion of the distal section of the core passing through the second section of the tube is a flat ribbon having a major plane lying perpendicular to the preferred bending plane, and
- wherein a stiffness of the tube structure is continuous across a transition between the two-beam section of the first section and the one-beam section of the second sections.
7 more elements
Dependencies are inferred from the claim text.