Rapid exchange interventional devices and methods
First Claim
1. An interventional device for introduction through a vascular penetration to a treatment site in a vessel comprising:
- a catheter shaft having a proximal extremity, a distal extremity and an interventional element coupled to the distal extremity;
a guidewire tube having a proximal end, a distal end and a guidewire lumen therebetween configured to slidably receive a guidewire, the distal end being coupled to the distal extremity of the catheter shaft and the proximal end being separate from the catheter shaft; and
a collar having a distal portion with a distal end positionable in the vascular penetration and a proximal portion adapted to remain outside the vascular penetration, the collar having a first longitudinal passageway configured to slidably receive the proximal extremity of the catheter shaft without substantial leakage of blood therethrough, and a second longitudinal passageway configured to slidably receive the proximal end of the guidewire tube without substantial leakage of blood therethrough, wherein the first passageway is discrete from the second passageway from the distal end through at least part of the proximal portion, andwherein the proximal extremity of the catheter shaft and the guidewire tube each have a length sufficient to extend to the vascular penetration when the interventional device is positioned at the treatment site.
5 Assignments
0 Petitions
Accused Products
Abstract
Wire-guided interventional devices and methods are provided which enable faster and easier catheter exchanges. The interventional devices include a catheter shaft and a guidewire tube wherein the catheter shaft and the guidewire tube each have a length sufficient to extend to the vascular penetration when the interventional device is positioned at the treatment site. In some embodiments, a collar is disposed around the catheter shaft and guidewire tube that automatically inserts or removes the guidewire from the guidewire tube or automatically collapses or extends the guidewire tube as the catheter is introduced or withdrawn.
467 Citations
29 Claims
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1. An interventional device for introduction through a vascular penetration to a treatment site in a vessel comprising:
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a catheter shaft having a proximal extremity, a distal extremity and an interventional element coupled to the distal extremity; a guidewire tube having a proximal end, a distal end and a guidewire lumen therebetween configured to slidably receive a guidewire, the distal end being coupled to the distal extremity of the catheter shaft and the proximal end being separate from the catheter shaft; and a collar having a distal portion with a distal end positionable in the vascular penetration and a proximal portion adapted to remain outside the vascular penetration, the collar having a first longitudinal passageway configured to slidably receive the proximal extremity of the catheter shaft without substantial leakage of blood therethrough, and a second longitudinal passageway configured to slidably receive the proximal end of the guidewire tube without substantial leakage of blood therethrough, wherein the first passageway is discrete from the second passageway from the distal end through at least part of the proximal portion, and wherein the proximal extremity of the catheter shaft and the guidewire tube each have a length sufficient to extend to the vascular penetration when the interventional device is positioned at the treatment site. - 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, 27, 28, 29)
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Specification