Steerable guide wire with torsionally stable tip
OwnerThomas Ressemann, Pete Keith +3inventors
InventorsThomas Ressemann, Pete Keith, Steven Willard, Peter Ness, Steven Hackett
Life of this patent
Estimating the term…
Abstract
A steerable guide wire includes a core wire having a proximal end and a distal end. A braided filament is affixed to the distal end of the core wire. An outer coil surrounds at least a portion of the core wire and the braided filament. A proximal end of the braided filament is secured to a distal end of the coil. By locating the braided filament in the distal tip portion of the guide wire, a guide wire is provided that is highly flexible, has a high degree of tensile integrity, and is highly steerable, even in tortuous vasculature. Filter and balloon catheters having braided filaments at the distal end are also described.
Claims43
A guide wire comprising:
- a core wire having a proximal end and a distal end;
- a braided filament disposed at the distal end of the core wire;
- and
- a coil surrounding at least a portion of the core wire and the braided filament.
A method for placing a guide wire in a vessel;
- comprising the steps of:
- providing a guide wire comprising a core wire having a proximal end and a distal end, a braided filament disposed at the distal end of the core wire;
- and a coil surrounding at least a portion of the core wire and the braided filament;
- and
- advancing the guide wire into the vessel.
25-28. (canceled)
A guide wire comprising:
- a core wire having a proximal end and a distal region, the distal region having a segment that comprises a slotted segment with repeating alternating first and second regions, wherein the first region has a first cross-sectional width and wherein the second region has a second cross-sectional width, wherein the first cross-sectional width is smaller than the second cross-sectional width;
- and
- a coil surrounding at least a portion of the core wire.
30-45. (canceled)
A method for placing a guide wire in a vessel;
- comprising the steps of:
- providing a core wire having a proximal end and a distal region, the distal region having a segment that comprises a slotted segment with repeating alternating first and second regions, wherein the first region has a first cross-sectional width and wherein the second region has a second cross-sectional width, wherein the first cross-sectional width is smaller than the second cross-sectional width, and a coil surrounding at least a portion of the core wire;
- and
- advancing the guide wire into the vessel.
47-50. (canceled)
A guide wire comprising:
- a core wire having a proximal end and a distal end;
- an elongate tubular member having a proximal end, a distal end, and a lumen therebetween, wherein at least a portion of the core wire is disposed within the lumen of the elongate tubular member;
- and
- a coil surrounding at least a portion of the core wire and the elongate tubular member.
52-70. (canceled)
A method for placing a guide wire in a vessel;
- comprising the steps of:
- providing a core wire having a proximal end and a distal end, an elongate tubular member having a proximal end, a distal end, and a lumen therebetween, wherein at least a portion of the core wire is disposed within the lumen of the elongate tubular member, and a coil surrounding at least a portion of the core wire and the elongate tubular member.;
- and
- advancing the guide wire into the vessel.
72-75. (canceled)
A medical device comprising:
- an elongate tubular member having a proximal end, a distal region, a balloon disposed on the distal region, and an inflation lumen communicating with the balloon and extending proximally from the balloon;
- a braided filament extending distally from the distal region of the elongate tubular member;
- and
- a coil surrounding at least a portion of the braided filament.
77-88. (canceled)
A method for treating a lesion in a vessel, comprising the steps of:
- providing a medical device comprising:
- an elongate tubular member having a proximal end, a distal region, a dilatation balloon disposed on the distal region, and an inflation lumen communicating with the dilatation balloon and extending proximally from the dilatation balloon;
- a braided filament extending distally from the distal region of the elongate tubular member;
- and
- a coil surrounding at least a portion of the braided filament;
- advancing the medical device into the vessel;
- locating the dilatation balloon within the lesion;
- and
- expanding the dilatation balloon to dilate the lesion.
(canceled)
A method for treating a lesion in a vessel, comprising the steps of:
- providing a medical device comprising:
- an elongate tubular member having a proximal end, a distal region, an occlusion balloon disposed on the distal region, and an inflation lumen communicating with the occlusion balloon and extending proximally from the occlusion balloon;
- a braided filament extending distally from the distal region of the elongate tubular member;
- and
- a coil surrounding at least a portion of the braided filament;
- advancing the medical device into the vessel;
- locating the occlusion balloon distal the lesion;
- and
- expanding the occlusion balloon to occlude the vessel.
92-93. (canceled)
A medical device comprising:
- an elongate tubular member having a proximal end, a distal region, an expandable filter disposed on the distal region, and an actuation mechanism operable to expand the expandable filter;
- a braided filament extending distally from the distal region of the elongate tubular member;
- and
- a coil surrounding at least a portion of the braided filament.
95-104. (canceled)
A method for treating a vessel having a lesion, comprising the steps of:
- providing a medical device comprising:
- an elongate tubular member having a proximal end, a distal region, an expandable filter disposed on the distal region, and an actuation mechanism operable to expand the expandable filter;
- a braided filament extending distally from the distal region of the elongate tubular member;
- and
- a coil surrounding at least a portion of the braided filament;
- advancing the medical device into the vessel;
- locating the expandable filter distal the lesion;
- and
- operating the actuation mechanism to expand the expandable filter.
106-107. (canceled)
Dependencies are inferred from the claim text.