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US 2014/0046216 A1Published application
Guidewire
AssigneeDevice Source, LLC
InventorsRobert A. Palme, JR., Gregory L. Townsend
Life of this patent
Estimating the term…
Abstract
A guidewire has a coil with a side of the coil winds having solid physical connections between the coil winds to prevent the connected coil wind side from expanding resulting from the application of force by an actuating member. The application of longitudinal force to the coil causes the unconnected coil wind side to expand while the connected side does not expand, resulting in the guidewire assuming a different configuration.
Claims20
A guidewire, comprising:
- a distal section having an expandable side and a non-expandable side, the distal section comprising a metallic coil defining a first central space and comprising a plurality of winds and an external flat section on the plurality of winds;
- a proximal section comprising a hollow member defining a second central space substantially coaxial with the first central space, the proximal section having less flexibility than the distal section;
- a metallic ribbon having a rectangular cross section attached to the external flat section at each of the plurality of winds;
- and
- an actuating member extending through the first central space and the second central space, the actuating member attached proximate a distal end of the distal section and capable of transferring longitudinal force to the coil.
2 more elements
A guidewire comprising:
- a distal section having a longitudinal axis and comprising a coil defining a central space extending along the longitudinal axis, the coil comprising a plurality of winds having an external flat section;
- and
- a ribbon having a rectangular cross section attached to the external flat section at each of the plurality of winds,
- wherein when viewed in a cross section taken orthogonal to the longitudinal axis, the coil has a radius, except in the external flat section, wherein the external flat section and the ribbon attached thereto present within the radius.
1 more element
A guidewire comprising:
- a distal section having a longitudinal axis and comprising a coil defining a central space extending along the longitudinal axis, the coil comprising a plurality of winds having an external flat section;
- and
- a ribbon having a rectangular cross section attached to the external flat section at each of the plurality of winds,
- wherein when viewed in a cross section taken orthogonal to the longitudinal axis, the coil is defined by a constant radius except in the external flat section.
1 more element
Dependencies are inferred from the claim text.