Dual endovascular filter and methods of use
First Claim
1. A method of filtering and capturing particles in the vasculature, comprising the steps of:
- providing delivery device with a filter device positioned therein, the filter device comprising a frame and first and second filter portions secured to the frame, wherein the frame has a folded configuration whereby the first and second filter portions are folded by pivoting about an axis positioned between portions of the first and second filter portions closest to each other and a deployed configuration;
advancing the delivery device through a first vessel;
deploying the filter device from the delivery device;
with the delivery device positioned in the first vessel, positioning the first filter portion relative to the first vessel such that particles traveling into the first vessel will be trapped in the first filter portion and that an open portion of the first filter portion faces forward away from the delivery device;
with the delivery device positioned in the first vessel, positioning the second filter portion relative to a second vessel such that particles traveling into the second vessel will be trapped in the second filter portion and that an open portion of the second filter portion faces forward away from the delivery device; and
pivoting the first and second filter portions toward one another about the axis to bring the open portions of the first and second filter portions towards each other to capture the particles trapped in the first and second filter portions.
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Accused Products
Abstract
Blood filter devices and methods of use is describe herein. Present invention pertains to a method of filtering and capturing particles in a vasculature of a patient that comprises steps of introducing a delivery device, which has a filter assembly placed therein, through a first vessel. The filter assembly comprises a first filter portion and second filter portion that open and closes with respect to each other via a pivot axis extending perpendicular to a longitudinal axis of delivery catheter. Upon deployment of the filter assembly the first filter portion is positioned relative to the first vessel such that particles traveling into the first vessel will be trapped in the first filter portion, and positioning the second filter portion relative to the second vessel such that particles traveling into the second vessel will be trapped in the second filter portion. After capturing the particles in the respective filters, first and second filter portions pivot towards one another to close the filter assembly in order to be retrieved back into the delivery device for removal from the vasculature of the patient.
188 Citations
9 Claims
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1. A method of filtering and capturing particles in the vasculature, comprising the steps of:
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providing delivery device with a filter device positioned therein, the filter device comprising a frame and first and second filter portions secured to the frame, wherein the frame has a folded configuration whereby the first and second filter portions are folded by pivoting about an axis positioned between portions of the first and second filter portions closest to each other and a deployed configuration; advancing the delivery device through a first vessel; deploying the filter device from the delivery device; with the delivery device positioned in the first vessel, positioning the first filter portion relative to the first vessel such that particles traveling into the first vessel will be trapped in the first filter portion and that an open portion of the first filter portion faces forward away from the delivery device; with the delivery device positioned in the first vessel, positioning the second filter portion relative to a second vessel such that particles traveling into the second vessel will be trapped in the second filter portion and that an open portion of the second filter portion faces forward away from the delivery device; and pivoting the first and second filter portions toward one another about the axis to bring the open portions of the first and second filter portions towards each other to capture the particles trapped in the first and second filter portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification