Catheter
First Claim
1. A delivery catheter system comprising:
- a guidewire,an embolic protection filter comprising a tubular member for receiving the guidewire, anda delivery catheter,the delivery catheter comprising a catheter shaft, an engagement element and an operating element, the catheter shaft defining a proximal end, a distal end and a control lumen for the operating element;
the engagement element is attached to and extends distally from the catheter shaft, the engagement element comprising a proximal end, a distal end and a distal region adjacent the distal end;
a pod defining a reception space for the filter, the pod being slidable relative to the engagement element over the distal region of the engagement element upon operation of the operating element to facilitate deployment of the filter from within the reception space, the pod having a proximal end and a distal end; and
the engagement element is adapted for engaging the filter in the reception space upon sliding of the pod proximally relative to the engagement element;
wherein the engagement element defines a guidewire lumen therethrough for passage of the guidewire, the guidewire lumen being separate from the control lumen,the engagement element and the filter are not attached to and can move independently of the guidewire,the engagement element is slidable relative to the filter, the pod and the operating element,the guidewire is separate from the operating element, andthe engagement element is adapted to slide completely within the pod, such that the distal end of the engagement element is proximal of the distal end of the pod.
1 Assignment
0 Petitions
Accused Products
Abstract
A delivery catheter 200 for rapid exchange delivery of an embolic protection filter 301 over a guidewire 22, and rapid exchange deployment of the filter 301 at a desired site in a vasculature. The delivery catheter 200 comprises a catheter body 2, a restraining sheath 10 and an elongate pull wire 9. The catheter body 2 comprises a proximal hypotube portion 5 and a radially offset distal spring pusher 6. The restraining sheath 10 is movable in a sliding manner relative to the catheter body 2 upon retraction of the wire 9, and the distal end of the pusher 6 is engageable with the filter 301 in a reception space 11 upon retraction of the sheath 10 to deploy the filter 301 out of the reception space 11. The pusher 6 has a guidewire lumen 16 and a proximal guidewire opening 17 for passage of the guidewire 22 through the lumen 16 and out through the proximal guidewire opening 17 in a rapid exchange manner.
78 Citations
64 Claims
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1. A delivery catheter system comprising:
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a guidewire, an embolic protection filter comprising a tubular member for receiving the guidewire, and a delivery catheter, the delivery catheter comprising a catheter shaft, an engagement element and an operating element, the catheter shaft defining a proximal end, a distal end and a control lumen for the operating element; the engagement element is attached to and extends distally from the catheter shaft, the engagement element comprising a proximal end, a distal end and a distal region adjacent the distal end; a pod defining a reception space for the filter, the pod being slidable relative to the engagement element over the distal region of the engagement element upon operation of the operating element to facilitate deployment of the filter from within the reception space, the pod having a proximal end and a distal end; and the engagement element is adapted for engaging the filter in the reception space upon sliding of the pod proximally relative to the engagement element; wherein the engagement element defines a guidewire lumen therethrough for passage of the guidewire, the guidewire lumen being separate from the control lumen, the engagement element and the filter are not attached to and can move independently of the guidewire, the engagement element is slidable relative to the filter, the pod and the operating element, the guidewire is separate from the operating element, and the engagement element is adapted to slide completely within the pod, such that the distal end of the engagement element is proximal of the distal end of the pod. - 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, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
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Specification