Methods and apparatus for accessing and treating body lumens
First Claim
1. A method for forming a second access penetration in a wall of a body lumen having a first access penetration in said wall, said method comprising:
- introducing a penetrating device inwardly through the first access penetration into the body lumen;
positioning a penetrating element of the penetrating device at a target site in the lumen; and
advancing the penetrating element outwardly through the wall of the lumen and overlying tissue to form the second access penetration.
6 Assignments
0 Petitions
Accused Products
Abstract
Access to blood vessels and other body lumens is provided from spaced-apart access penetrations. A penetrating device is introduced through a first access penetration to a target site within the body lumen and then used to penetrate outwardly from the body lumen to an external surface on an organ or the patient'"'"'s skin. A guidewire may then be deployed through the penetrating device, and the penetrating device removed to leave the guidewire in place. Catheters and other interventional and diagnostic devices may then be introduced to the target site from either or both of the first and second access penetrations over the same guidewire.
152 Citations
41 Claims
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1. A method for forming a second access penetration in a wall of a body lumen having a first access penetration in said wall, said method comprising:
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introducing a penetrating device inwardly through the first access penetration into the body lumen;
positioning a penetrating element of the penetrating device at a target site in the lumen; and
advancing the penetrating element outwardly through the wall of the lumen and overlying tissue to form the second access penetration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 40)
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10. A method for positioning a guidewire in a body lumen, said method comprising:
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positioning a guide tube between a first access penetration and a second access penetration into the body lumen;
passing a guidewire through the guide tube, and withdrawing the guide tube to leave the guidewire in place. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 41)
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19. A method for intervening at a target site in a body lumen, said method comprising:
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positioning a guidewire between a first access penetration and a second access penetration into the body lumen;
introducing a first device through the first access location over the guidewire to the target site;
introducing a second device through the second access location over the guidewire to the target site; and
intervening at the target site using at least one of the devices. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A device for positioning a filament in a body lumen, said device comprising:
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a catheter which can be introduced through a first access penetration into the body lumen; and
means advancable from the catheter for creating a second access penetration and providing a filament path between said first and second access penetrations. - View Dependent Claims (34, 35, 36, 37, 38, 39)
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Specification