Radiopaque fibers and filtration matrices
First Claim
1. A medical device comprising a three dimensional filtration matrix having a deployment configuration with a relatively low profile relative to an axis and a filtering configuration with a relatively large profile relative to the axis, the three-dimensional filtration matrix comprising a radiopaque material.
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Accused Products
Abstract
Medical devices with radiopaque three dimensional filtration matrices provide for improved visualization of the device within a vessel. In some embodiments, the three dimensional filtration matrix comprises fibers, such as surface capillary fibers. Visualization of the three dimensional filtration matrix provides for an evaluation of the proper deployment of the three dimensional filtration matrix. Radiopaque surface capillary fibers can be advantageously incorporated into other medical devices. Radiopaque surface capillary fibers can be formed by extrusion of a radiopaque polymer or polymer composite.
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Citations
26 Claims
- 1. A medical device comprising a three dimensional filtration matrix having a deployment configuration with a relatively low profile relative to an axis and a filtering configuration with a relatively large profile relative to the axis, the three-dimensional filtration matrix comprising a radiopaque material.
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12. A filtration device comprising a guide structure and a filter element comprising a radiopaque composition operably connected to the guide structure, the filter element having a delivery configuration and a deployed configuration with a profile that extends outward from the guide structure relative to the delivery configuration, the filter element having an x-ray image in its deployed configuration with a peak intensity greater than the peak intensity of the x-ray image in its delivery configuration when the x-ray source is oriented perpendicular to the axis aligned through the center of the vessel at the filter.
- 13. A method for filtering flow within a vessel of a patient, the method comprising visualizing the interface of a filter element with the vessel to determine if the filter is properly deployed, wherein the filter element comprises a three dimensional filtration matrix.
- 19. A medical device comprising a surface capillary fiber comprising a biocompatible, radiopaque material.
- 22. A method for forming a radiopaque biocompatible fiber, the method comprising extruding a radiopaque, biocompatible material to form a fiber, the radiopaque, biocompatible material comprising a polymer.
Specification