Reverse tapered guidewire and method of use
First Claim
Patent Images
1. A method of delivering an intravascular medical device to a body lumen of a patient, comprising:
- advancing a guidewire through an access site on the patient into the lumen of a blood vessel, the guidewire having a proximal region and a distal region, wherein the proximal region has a cross-sectional diameter smaller than a cross sectional diameter of the distal region;
advancing an intravascular device over at least the proximal region of the guidewire into the lumen of the blood vessel;
performing an operation at a treatment site within the patient with the intravascular device;
withdrawing the intravascular device from the patient; and
introducing the same or a different intravascular device over the proximal segment of the guidewire.
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Abstract
A reverse tapered guidewire may comprise a proximal segment and a distal segment. The proximal segment may have a cross-sectional diameter smaller than a cross-sectional diameter of the distal segment. The guidewire may be inserted through an access site on a patient. A medical device may be advanced over the proximal segment of the guidewire. After the medical device is withdrawn from the patient, the guidewire may be used to re-access the site.
210 Citations
28 Claims
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1. A method of delivering an intravascular medical device to a body lumen of a patient, comprising:
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advancing a guidewire through an access site on the patient into the lumen of a blood vessel, the guidewire having a proximal region and a distal region, wherein the proximal region has a cross-sectional diameter smaller than a cross sectional diameter of the distal region;
advancing an intravascular device over at least the proximal region of the guidewire into the lumen of the blood vessel;
performing an operation at a treatment site within the patient with the intravascular device;
withdrawing the intravascular device from the patient; and
introducing the same or a different intravascular device over the proximal segment of the guidewire. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of providing access to a blood vessel of a patient, comprising:
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advancing a guidewire through an access site in the patient'"'"'s tissue and through an incision in a lumen of a blood vessel, the guidewire having a proximal region and a distal region, wherein the proximal region has a cross-sectional diameter smaller than a cross sectional diameter of the distal region;
holding a proximal portion of the wire outside of the patient to maintain the position of the distal region of the guidewire within the incision in the blood vessel;
advancing a medical device over the proximal region of the guidewire until it abuts the beginning of the larger diameter distal region; and
moving the guidewire and the medical device distally through the patient'"'"'s tissue past the incision in the body lumen. - View Dependent Claims (9, 10, 11)
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12. A method of performing a medical procedure, comprising:
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delivering a guidewire into a patient, the guidewire having a proximal segment and a distal segment, wherein the proximal segment has a smaller diameter than that of the distal segment, such that the proximal segment extends outside the patient after the guidewire is delivered; and
advancing a medical device over the guidewire into the patient. - View Dependent Claims (13, 14)
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15. A method of placing at least one suture, comprising:
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inserting a guidewire into a body opening, the guidewire comprising a proximal segment and a distal segment, the proximal segment having a smaller diameter than the distal segment;
advancing a suture delivery device at least partially over the proximal segment of the guidewire to the opening;
applying at least one suture to the opening using the suture delivery device; and
withdrawing the suture delivery device from the patient'"'"'s body over the guidewire while retaining the guidewire within the body opening. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A guidewire, comprising:
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a proximal segment and a distal segment, wherein the proximal segment has a smaller diameter than that of the distal segment;
wherein the proximal segment has a substantially constant diameter and substantially consistent mechanical properties from a proximal end of the guidewire to a transition between the proximal and distal segments. - View Dependent Claims (26, 27, 28)
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Specification