Guidewire assembly with intertwined core wire
AssigneeAcclarent, Inc.
InventorsGeorge L. Matlock, Henry F. Salazar
Life of this patent
Estimating the term…
Abstract
An apparatus and method of manufacture includes a helical wire coil and a core wire. The core wire has a first wire portion and a second wire portion. The first wire portion of the core wire extends through the helical wire coil. The second wire portion of the core wire is intertwined with the first helical wire coil to fixedly secure the core wire relative to the first helical wire coil. The core wire is formed from a first material that is non-extensible. The core wire is fixedly secured relative to a distal portion of the helical wire coil such that the core wire inhibits longitudinal elongation of the helical wire coil along a longitudinal coil axis.
Claims20
An apparatus, comprising:
- a first helical wire coil having a first outer diameter;
- and
- a core wire having a first wire portion and a second wire portion, wherein the first wire portion of the core wire extends through the first helical wire coil, wherein the second wire portion of the core wire comprises a second helical wire coil having a second outer diameter that is configured such that the second helical wire coil is radially intertwined with the first helical wire coil to fixedly secure the core wire relative to the first helical wire coil, wherein the core wire is formed from a first material that is non-extensible,
- wherein the core wire is fixedly secured relative to a distal portion of the first helical wire coil such that the core wire inhibits longitudinal elongation of the first helical wire coil along a longitudinal coil axis.
An apparatus, comprising:
- a proximal wire coil, wherein the proximal wire coil is helical;
- a distal wire coil, wherein the distal wire coil is helical and interlocked with the proximal wire coil such that the proximal and distal wire coils form a double helix configuration extending along a longitudinal coil axis, wherein the distal wire coil defines a helical space;
- and
- a core wire having a first wire portion and a second wire portion, wherein the first wire portion of the core wire extends through the proximal wire coil, wherein the second wire portion of the core wire has a core helical wire coil having a second outer diameter that is configured such that the core helical wire coil is radially intertwined in the helical space with the distal wire coil such that the core helical wire coil is received within the helical space and engaged with the distal wire coil to inhibit movement of the core helical wire coil relative to the distal wire coil and fixedly secure the core wire relative to the distal wire coil, wherein the core wire is formed from a first material that is non-extensible,
- wherein the core helical wire coil is fixedly secured relative to a distal portion of the distal wire coil such that the core wire inhibits longitudinal elongation of the proximal wire coil and the distal wire coil along a longitudinal coil axis.
Dependencies are inferred from the claim text.