Medical device including structure for crossing an occlusion in a vessel
First Claim
1. A medical guidewire comprising:
- an elongated non-coiled tubular member extending along a longitudinal axis and defining an inner lumen and having an outer surface, the tubular member including a proximal section, a distal section, a proximal end, and a distal end;
the distal section including a plurality of angled slots defined therein that form a generally spiral shaped pattern about the longitudinal axis, the distal section having an outer diameter;
wherein the plurality of angled slots are disposed at a non-normal angle relative to the longitudinal axis; and
the proximal section having an outer diameter that is less than the outer diameter of the distal section;
wherein the inner lumen is at least partially disposed within each of the proximal and distal sections;
wherein the elongated non-coiled tubular member includes a distal tip member attached at the distal end such that the inner lumen has a closed distal end.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical device, such as a guidewire, catheter, or the like, that includes an elongated tubular member that includes a plurality of angled slots defined in at least a distal section thereof. The plurality of angled slots can form a generally spiral shaped pattern about the longitudinal axis of the tubular member, and can be useful, for example, in aiding a user of the device in crossing an occlusion in a vessel of a patient. In some embodiments, the distal section of the tubular member may have an outer diameter that is greater than the outer diameter of a proximal section of the tubular member. In some embodiments, a proximal section of the tubular member may include a plurality of slots defined therein, for example, that may be configured to increase the lateral flexibility of the tubular member.
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Citations
30 Claims
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1. A medical guidewire comprising:
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an elongated non-coiled tubular member extending along a longitudinal axis and defining an inner lumen and having an outer surface, the tubular member including a proximal section, a distal section, a proximal end, and a distal end; the distal section including a plurality of angled slots defined therein that form a generally spiral shaped pattern about the longitudinal axis, the distal section having an outer diameter; wherein the plurality of angled slots are disposed at a non-normal angle relative to the longitudinal axis; and the proximal section having an outer diameter that is less than the outer diameter of the distal section; wherein the inner lumen is at least partially disposed within each of the proximal and distal sections; wherein the elongated non-coiled tubular member includes a distal tip member attached at the distal end such that the inner lumen has a closed distal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A medical guidewire comprising:
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an elongated tubular member extending along a longitudinal axis and defining an inner lumen and having an outer surface, the tubular member including a proximal section, a distal section, a proximal end, and a distal end; a plurality of first slots defined in at least a portion of the distal section of the tubular member, the first slots being disposed at a non-normal angle relative to the longitudinal axis such that the slots form a generally spiral shaped pattern about the longitudinal axis; and a plurality of second slots defined in at least a portion of the proximal section of the tubular member that are configured to increase the lateral flexibility of the tubular member, the second slots being disposed at an angle relative to the longitudinal axis that is different from the angle of the first slots; wherein the elongated tubular member includes a distal tip member attached at the distal end such that the inner lumen has a closed distal end. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A guidewire for crossing an occlusion in a vessel lumen of a patient, the guidewire comprising:
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an elongated tubular member extending along a longitudinal axis and defining an inner lumen and having an outer surface, the tubular member including a proximal section, a distal section, a proximal end, and a distal end, at least a portion of the tubular member including a plurality of slots defined therein that are configured to increase the lateral flexibility of the tubular member; and means for engaging the occlusion and pulling at least a portion of the guide wire through the occlusion when a predetermined twisting motion is applied to the guidewire; wherein the distal section has an outer diameter, and the proximal section has a generally constant outer diameter that is less than the outer diameter of the distal section; wherein the inner lumen is at least partially disposed within each of the proximal and distal sections; wherein the elongated tubular member includes a distal tip member attached at the distal end such that the inner lumen has a closed distal end.
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Specification