Embolic protection system
First Claim
Patent Images
1. A catheter having an expansible internal reception space for receiving an embolic protection filter and for transporting the filter through a vasculature;
- and the catheter comprising a treatment device to facilitate treatment of a site in a vasculature,wherein the catheter has an outer tubular body and an inner member extending at least partially through the outer body, the outer body having an expansible distal tip, and the inner member being movable proximally relative to the outer body from an introduction configuration to a retrieval configuration to facilitate retrieval of an embolic protection filter into the reception space;
the inner member has a proximal end and a distal end, the proximal end of the inner member has a first constant diameter, and the distal end of the inner member has a second constant diameter, the first constant diameter being larger than the second constant diameter;
a distal tip of the inner member tapers distally inwardly, the inwardly tapering distal tip of the inner member being located on the inner member at a location distal of the treatment device during the introduction configuration, the treatment device is mounted on the distal end of the inner member, and a diameter of the distal tip is greater than the second constant diameter;
the filter is separate from and slidable relative to the inner member and the outer tubular body;
a distal end of the distal tip provides a proximal stop for the filter;
the distal tip is adapted to slide completely within the outer body in the introduction configuration; and
the distal tip comprises an engagement element adapted for retrieval of the filter.
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Accused Products
Abstract
A catheter system 1 has an internal reception space for an embolic protection filter 10 to enable the filter 10 to be transported through a vasculature 20 and a treatment means such as a stent 15 to facilitate treatment. The catheter system may be used for retrieval of a filter 10 and stenting of a lesion with a stent 15. The procedure may also involve post dilatation using an on-board balloon 16.
32 Citations
33 Claims
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1. A catheter having an expansible internal reception space for receiving an embolic protection filter and for transporting the filter through a vasculature;
- and the catheter comprising a treatment device to facilitate treatment of a site in a vasculature,
wherein the catheter has an outer tubular body and an inner member extending at least partially through the outer body, the outer body having an expansible distal tip, and the inner member being movable proximally relative to the outer body from an introduction configuration to a retrieval configuration to facilitate retrieval of an embolic protection filter into the reception space; the inner member has a proximal end and a distal end, the proximal end of the inner member has a first constant diameter, and the distal end of the inner member has a second constant diameter, the first constant diameter being larger than the second constant diameter; a distal tip of the inner member tapers distally inwardly, the inwardly tapering distal tip of the inner member being located on the inner member at a location distal of the treatment device during the introduction configuration, the treatment device is mounted on the distal end of the inner member, and a diameter of the distal tip is greater than the second constant diameter; the filter is separate from and slidable relative to the inner member and the outer tubular body; a distal end of the distal tip provides a proximal stop for the filter; the distal tip is adapted to slide completely within the outer body in the introduction configuration; and the distal tip comprises an engagement element adapted for retrieval of the filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
- and the catheter comprising a treatment device to facilitate treatment of a site in a vasculature,
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23. A method for carrying out a procedure at a treatment site in a vasculature comprising the steps of
providing an embolic protection device; -
deploying the embolic protection device distal of the treatment site; providing a procedural catheter comprising a tubular member having an expansible distal space housing a medical device; advancing the procedural catheter to the treatment site; deploying the medical device from the procedural catheter at the treatment site; retrieving the embolic protection device into the procedural catheter, wherein the procedural catheter has an inner member, and an expansible distal tip of the inner member tapers distally inwardly; and the inwardly tapering distal tip of the inner member being located on the inner member at a location distal of the medical device during advancement of the procedural catheter to the treatment site, wherein the inner member has a proximal end and a distal end, the proximal end of the inner member has a first constant diameter, and the distal end of the inner member has a second constant diameter, the first constant diameter being larger than the second constant diameter and a diameter of the distal tip is greater than the second constant diameter, the medical device is mounted on the distal end of the inner member, the embolic protection device is separate from and slidable relative to the inner member, a distal end of the distal tip provides a proximal stop for the embolic protection device, and the distal tip slides completely within the tubular member when the embolic protection device is retrieved, and the embolic protection device is retrieved into the procedural catheter by engaging the embolic protection device with gripping formations on the distal tip and then pulling proximally on the inner member. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification