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.
Claims19
A guidewire device including a shapeable tip, the guidewire device comprising:
- a core including a proximal section and a distal section;
- and
- a shapeable tube structure coupled to the core such that the distal section of the core passes into the tube structure, the tube structure including a first section and a second section distal to the first 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 and the second section of the tube structure includes a single beam between adjacent rings,
- wherein a thickness of a most proximal ring of the second section is greater than a thickness of a most distal ring of the first section, and
- wherein a stiffness of the tube structure is continuous across a transition between the first and second sections.
A guidewire device including a shapeable tip, the guidewire device comprising:
- a core including a proximal section and a distal section;
- and
- a tube structure coupled to the core such that the distal section of the core passes into the tube structure, the tube structure including a first section, a second section distal to the first section, and a third section distal to 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 each pair of adjacent rings,
- wherein the second section of the tube structure includes only a single beam between each pair of adjacent rings, and
- wherein the third section of the tube structure includes two or more beams between each pair of adjacent rings.
A guidewire device including a shapeable tip, the guidewire device comprising:
- a core including a proximal section and a distal section;
- and
- a shapeable tube structure coupled to the core such that the distal section of the core passes into the tube structure, the tube structure including a first section, a second section distal to the first section, and a third section distal to 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 second section of the tube structure includes a single beam between adjacent rings, and the third section includes two or more beams between adjacent rings,
- wherein a stiffness of the tube structure is continuous across a transition between the first and second sections, and
- wherein a thickness of a most proximal ring of the second section is greater than a thickness of a most distal ring of the first section.
Dependencies are inferred from the claim text.