Methods and apparatus for bypassing arterial obstructions and/or performing other transvascular procedures
First Claim
1. A method for revascularization, said method comprising the steps of:
- a) choosing a first location on a blood vessel that has a lumen containing blood having a pO2 of at least 50; and
b) forming a passageway that extends outside of said lumen and between said first location and a second location on a blood vessel, such that said blood will flow through said passageway, said passageway being formed by i) providing a passageway-forming catheter device that comprises an elongate flexible catheter body having a tissue-penetrating element passable therefrom;
ii) inserting said catheter body into the blood vessel lumen and positioning said catheter body within the blood vessel lumen such that the tissue-penetrating element is located adjacent the location at which said passageway is to be formed; and
iii) passing said tissue-penetrating element from said catheter body so as to form said passageway such that blood will flow from the first location through the passageway and to the second location.
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Accused Products
Abstract
Methods, devices, and systems for a) revascularization and/or b) performing other medical procedures at vascular or non-vascular intracorporeal locations within a mammalian body. The methods generally comprise the formation of at least one extravascular passageway from a blood vessel to a vascular or non-vascular target location. In the revascularization methods the extravascular passageway is utilized for blood flow. In the medical procedure methods the extravascular passageway is utilized as a conduit for accessing or performing procedures at the vascular or non-vascular target location. Also disclosed are catheter devices and systems which are useable to form the extravascular passageways of the invention, as well as apparatus for modifying, maintaining and/or closing such extravascular passageways.
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Citations
7 Claims
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1. A method for revascularization, said method comprising the steps of:
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a) choosing a first location on a blood vessel that has a lumen containing blood having a pO2 of at least 50; and
b) forming a passageway that extends outside of said lumen and between said first location and a second location on a blood vessel, such that said blood will flow through said passageway, said passageway being formed by i) providing a passageway-forming catheter device that comprises an elongate flexible catheter body having a tissue-penetrating element passable therefrom;
ii) inserting said catheter body into the blood vessel lumen and positioning said catheter body within the blood vessel lumen such that the tissue-penetrating element is located adjacent the location at which said passageway is to be formed; and
iii) passing said tissue-penetrating element from said catheter body so as to form said passageway such that blood will flow from the first location through the passageway and to the second location. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification