Delivery systems for embolic filter devices
First Claim
1. A method for delivering a filter device within a body vessel, comprising:
- providing a first guide wire having a proximal end and a distal end and a filter device mounted near the distal end, a sheath having a proximal end and a distal end and including a first lumen for receiving the filter device and a second lumen for receiving a second guide wire therethrough, the first lumen extending into the second lumen near the distal end of the sheath;
advancing the second guide wire into the area of interest within the body vessel;
advancing the filter device and sheath along the second guide wire for positioning the filter device within the area of interest in the body vessel;
retracting the sheath proximally from the filter device;
deploying the filter device within the body vessel; and
advancing an interventional device over the first guide wire to the area of interest,wherein the sheath has a length and the second lumen for receiving the second guide wire has a length substantially the same as the sheath.
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Accused Products
Abstract
A delivery system for an expandable filter device includes a dual lumen delivery sheath which has a lumen for receiving the expandable filter device and a lumen for receiving a primary guide wire. The primary guide wire is utilized to place the delivery sheath and expandable filter into the desired region of the patient'"'"'s vasculature via an over-the-wire or rapid-exchange arrangement. The delivery sheath can be protracted over the expandable filter device to allow the filter to be deployed within the patient'"'"'s vasculature at the desired location. The delivery system can be embodied in an alternative design in which the primary guide wire extends through a guide wire lumen located in an obturator which forms part of the expandable filter device. Again, the primary guide wire is utilized to maneuver the filter device into the desired area via an over-the-wire arrangement. A slit extending longitudinally along the length of the sheath facilitates the removal of the guide wire and delivery sheath from the patient'"'"'s vasculature.
792 Citations
14 Claims
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1. A method for delivering a filter device within a body vessel, comprising:
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providing a first guide wire having a proximal end and a distal end and a filter device mounted near the distal end, a sheath having a proximal end and a distal end and including a first lumen for receiving the filter device and a second lumen for receiving a second guide wire therethrough, the first lumen extending into the second lumen near the distal end of the sheath; advancing the second guide wire into the area of interest within the body vessel; advancing the filter device and sheath along the second guide wire for positioning the filter device within the area of interest in the body vessel; retracting the sheath proximally from the filter device; deploying the filter device within the body vessel; and advancing an interventional device over the first guide wire to the area of interest, wherein the sheath has a length and the second lumen for receiving the second guide wire has a length substantially the same as the sheath.
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2. A method for delivering a filter device within a body vessel, comprising:
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providing a first guide wire having a proximal end and a distal end and a filter device mounted near the distal end, a sheath having a proximal end and a distal end and including a first lumen for receiving the filter device and a second lumen for receiving a second guide wire therethrough; advancing the second guide wire into the area of interest within the body vessel; advancing the filter device and sheath along the second guide wire for positioning the filter device within the area of interest in the body vessel; retracting the sheath proximally from the filter device;
deploying the filter device within the body vessel; andadvancing an interventional device over the first guide wire to the area of interest, wherein the sheath includes perforations located near its distal end which causes at least a portion of the sheath to rupture as the sheath is retracted over the filter device. - View Dependent Claims (3)
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4. A method for delivering a filter device within a body vessel, comprising:
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providing a first guide wire having a proximal end and a distal end and a filter device mounted near the distal end, a sheath having a length defined by a proximal end which extends outside of the body vessel during use and a distal end, the sheath including a first lumen for receiving the filter device and a second lumen for receiving a second guide wire therethrough, the second lumen having a length substantially the same as the sheath; advancing the second guide wire into the area of interest within the body vessel;
advancing the filter device and sheath along the second guide wire for positioning the filter device within the area of interest in the body vessel;removing the second guide wire from the body vessel prior to deploying the filter device; retracting the sheath proximally from the filter device; deploying the filter device within the body vessel; and advancing an interventional device over the first guide wire to the area of interest. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification