METHODS AND APPARATUS FOR ADVANCING A DEVICE FROM ONE BODY LUMEN TO ANOTHER
First Claim
Patent Images
1. A method for advancing a device from a first body lumen to a second body lumen, said method comprising:
- advancing a guidewire through the first body lumen to a target location;
penetrating the guidewire distally through a wall of the first body lumen at the target site and into the second body lumen through a wall thereof;
expanding an anchor on the guidewire within the second body lumen;
pulling the guidewire proximally to apply tension to the guidewire and to engage the expanded anchor against the wall of the second body lumen and draw said wall against the wall of the first body lumen; and
advancing a tool over the guidewire from the first body lumen and into the second body lumen while tension remains applied to the guidewire.
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Accused Products
Abstract
A guidewire has a guidewire body with a distal end and a proximal end. A balloon or other tissue anchor is disposed at or near the distal end of the guidewire, and the guidewire may be used to draw two layers of tissue into apposition by placing the guidewire through a tissue penetration, deploying the tissue anchor, and drawing proximally on the guidewire body. Optionally, the guidewire may include deployable blades for enlarging a tissue penetration as the guidewire is advanced therethrough.
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Citations
39 Claims
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1. A method for advancing a device from a first body lumen to a second body lumen, said method comprising:
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advancing a guidewire through the first body lumen to a target location; penetrating the guidewire distally through a wall of the first body lumen at the target site and into the second body lumen through a wall thereof; expanding an anchor on the guidewire within the second body lumen; pulling the guidewire proximally to apply tension to the guidewire and to engage the expanded anchor against the wall of the second body lumen and draw said wall against the wall of the first body lumen; and advancing a tool over the guidewire from the first body lumen and into the second body lumen while tension remains applied to the guidewire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A guidewire comprising:
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a guidewire body having a distal end and a proximal end; an expansible anchor near said distal end of the guidewire body; and a blade disposed adjacent to the expansible anchor on the guidewires, said blade having a retracted configuration within the guidewire body and a deployed configuration having a cutting edge extending outside of the guidewire body. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A guidewire comprising:
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a guidewire body having a distal end and a proximal end; an expansible anchor near said distal end of the guidewire body, said expansible anchor having a retracted configuration which conforms to an external surface of the guidewire body and an expanded configuration that has a distal surface and a proximal surface, wherein the proximal surface has a peripheral edge and a concavity within the peripheral edge, wherein the peripheral edge can be drawn proximally against a tissue surface so that the concavity defines a working space around the guidewire body. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification