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US 2021/0330943 A1Published application
Coil reinforced superelastic guidewire
AssigneeAbbott Cardiovascular Systems Inc.
InventorRobert Charles Hayzelden
Life of this patent
Estimating the term…
Abstract
A guidewire formed from a superelastic material has a proximal section and a distal section. In order to improve torque and pushability in the proximal section, a first wire is wound clockwise onto the proximal section to form a first coil and a second wire is wound counterclockwise onto the first coil to form a second coil.
Claims19
A guidewire, comprising:
- an elongated core wire formed from a superelastic material;
- the elongated core wire having a proximal section and a distal section;
- a first multifilar wire wound in a clockwise direction onto the proximal section of the elongated core wire to form a first multifilar coil;
- a second multifilar wire wound in a counterclockwise direction onto the first multifilar coil to form a second multifilar coil;
- and
- a polymer cover over the second multifilar coil and the proximal section of the elongated core wire to attach the first multifilar coil and the second multifilar coil to the elongated core wire.
3 more elements
A guidewire, comprising:
- an elongated core wire formed from a superelastic material;
- the elongated core wire having a distal section and a proximal section;
- a first wire wound in a clockwise direction onto the proximal section to form a first coil and a second wire wound in a counterclockwise direction onto the first coil to form a second coil;
- and
- a polymer cover over the second coil and the proximal section of the elongated core wire to attach the first coil and the second coil to the elongated core wire.
2 more elements
A guidewire, comprising:
- an elongated hollow tubing formed from a superelastic material;
- the elongated hollow tubing having a proximal section and a distal section;
- a first multifilar wire wound in a clockwise direction onto the proximal section of the elongated hollow tubing to form a first multifilar coil;
- a second multifilar wire wound in a counterclockwise direction onto the first multifilar coil to form a second multifilar coil;
- and
- a polymer cover over the second multifilar coil and the proximal section of the elongated hollow tubing to attach the first multifilar coil and the second multifilar coil to the elongated hollow tubing.
3 more elements
Dependencies are inferred from the claim text.