MULTI-UTILITARIAN MICROCATHETER SYSTEM AND METHOD OF USE
First Claim
1. A catheter device comprising:
- a proximal shaft member having a proximal end and a distal end;
a distal shaft member having a proximal end and a distal end;
an expandable member having a distal end connected to the proximal end of the distal shaft member and a proximal end connected to the distal end of the proximal shaft member; and
a variable-length member that extends through the expandable member and is transitionable between a) a short configuration having a first axial length and b) a long configuration having a second axial length longer than said first axial length;
the expandable member assuming an expanded configuration when the variable-length member is in its short configuration and a contracted configuration when the variable length member is in its short configuration.
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Accused Products
Abstract
A device for performing therapeutic or diagnostic procedures within the cerebrovasculature includes a catheter having a distal portion, a proximal portion and a lumen extending therebetween, the catheter including an expandable region for engaging the vessel wall, thrombus, atheroma, or other structures. The device further includes an elongate stretching member, which can be a guidewire, insertable longitudinally through the lumen of the catheter, the elongate stretching member being configured for stretching at least a portion of the catheter and causing the expandable region to transition from an expanded state to a collapsed state, and wherein the elongate stretching member is retracted proximally relative to the catheter causes the expandable region to transition from the radially collapsed state to a radially, or laterally expanded state.
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Citations
62 Claims
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1. A catheter device comprising:
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a proximal shaft member having a proximal end and a distal end; a distal shaft member having a proximal end and a distal end; an expandable member having a distal end connected to the proximal end of the distal shaft member and a proximal end connected to the distal end of the proximal shaft member; and a variable-length member that extends through the expandable member and is transitionable between a) a short configuration having a first axial length and b) a long configuration having a second axial length longer than said first axial length; the expandable member assuming an expanded configuration when the variable-length member is in its short configuration and a contracted configuration when the variable length member is in its short configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 35, 36, 38, 39, 40, 41, 42, 43, 56, 57, 58, 59, 60, 61, 62)
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- 27. A catheter device according to 25 wherein the lumen has an opening within the expandable member so that substance delivered through the lumen may flow out of the opening within the expandable member.
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28. A catheter device according to 25 wherein the lumen has an opening within the expandable member so that a device advanced through the lumen may advance out of the opening within the expandable member.
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44. A method of performing therapy within the cerebrovasculature of a patient comprising:
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advancing a guidewire and guide catheter system into the cerebrovasculature from a percutaneous access point in the femoral or iliac arteries; removing the guidewire from the guide catheter system; inserting a guidewire into the lumen of a microcatheter to collapse a mesh near the distal end of the microcatheter; advancing a microcatheter through the guide catheter to a target region within the cerebrovasculature; withdrawing the guidewire from the microcatheter to expand the mesh within a cerebrovasculature; and performing therapy or diagnosis within the cerebrovasculature. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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Specification