Medical device including structure for crossing an occlusion in a vessel
First Claim
1. A method for crossing an occlusion in a vessel lumen of a patient, the method comprising:
- inserting a medical device into the vessel, the medical device including an elongated tubular member extending along a longitudinal axis and defining an inner lumen and having an outer surface, the elongated tubular member including a proximal section, a distal section, a proximal end, and a distal end, the distal section including a plurality of angled discontinuous slots disposed non-normal to the longitudinal axis defined therein, wherein the plurality of angled discontinuous slots form a generally spiral shaped pattern about the longitudinal axis, the spiral shaped pattern defined by the plurality of angled discontinuous slots generally defining one or more generally spiral shaped structures remaining as a part of the distal section of the elongated tubular member, the distal section having an outer diameter that is greater than an outer diameter of the proximal section;
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;
navigating the medical device to the occlusion such that the distal end of the elongated tubular member engages the occlusion;
applying a rotational force to the medical device such that the one or more spiral shaped structures or the plurality of angled discontinuous slots engages the occlusion and pulls at least a portion of the medical device through the occlusion.
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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
18 Claims
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1. A method for crossing an occlusion in a vessel lumen of a patient, the method comprising:
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inserting a medical device into the vessel, the medical device including an elongated tubular member extending along a longitudinal axis and defining an inner lumen and having an outer surface, the elongated tubular member including a proximal section, a distal section, a proximal end, and a distal end, the distal section including a plurality of angled discontinuous slots disposed non-normal to the longitudinal axis defined therein, wherein the plurality of angled discontinuous slots form a generally spiral shaped pattern about the longitudinal axis, the spiral shaped pattern defined by the plurality of angled discontinuous slots generally defining one or more generally spiral shaped structures remaining as a part of the distal section of the elongated tubular member, the distal section having an outer diameter that is greater than an outer diameter of the proximal section; 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; navigating the medical device to the occlusion such that the distal end of the elongated tubular member engages the occlusion; applying a rotational force to the medical device such that the one or more spiral shaped structures or the plurality of angled discontinuous slots engages the occlusion and pulls at least a portion of the medical device through the occlusion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for crossing an occlusion in a vessel lumen of a patient, the method comprising:
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inserting a medical device into the vessel, the medical device including an elongated tubular member extending along a longitudinal axis and defining an inner lumen and having an outer surface, the elongated tubular member including a proximal section, a distal section, a proximal end, and a distal end, the distal section including a plurality of first discontinuous slots defined therein, the plurality of first discontinuous slots being disposed at a non-normal angle relative to the longitudinal axis such that the plurality of first discontinuous slots forms a generally spiral shaped pattern about the longitudinal axis, the spiral shaped pattern defined by the plurality of first discontinuous slots generally defining one or more generally spiral shaped structures remaining as a part of the distal section of the elongated tubular member; 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; navigating the medical device to the occlusion such that the distal end of the elongated tubular member engages the occlusion; applying a rotational force to the medical device such that the one or more spiral shaped structures or the plurality of first discontinuous slots engages the occlusion and pulls at least a portion of the medical device through the occlusion. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification