Anti-thrombus filter having enhanced identifying features
First Claim
1. A removable filter for capturing thrombi in a body vessel and having enhanced identifying features and reduced endothelium, the filter comprising:
- a plurality of struts having first ends attached together, each strut having an arcuate segment extending from the first end to an anchoring hook, the struts being configured to move between an expanded state for engaging the anchoring hooks with the body vessel and a collapsed state for filter retrieval or delivery, the struts having an anti-blood clot portion disposed thereon for reduced thrombi in the body vessel;
a hub configured to axially house the first ends, the hub comprising a wall disposed about the struts to attach the first ends together, the wall including an outer surface having an echogenic portion thereon for ultrasound detection; and
a retrieval hook having a free end housed in the hub, the retrieval hook extending oppositely from the struts to an arcuate portion having a radiopaque portion thereon for enhanced placement and removal of the filter in the body vessel.
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0 Petitions
Accused Products
Abstract
A removable filter for capturing thrombi in a body vessel. The filter has anti-thrombogenic, echogenic, and radiopaque features. The features of the filter provide for enhanced identifying and reduced endotheliosis in a body vessel of a patient. Generally, the anti-thrombogenic feature is preferably a fibrinolytic coating disposed on the filter to decrease the accumulation of fibrin thereon. The echogenic feature preferably is comprised of marks formed on the filter that give rise to reflections of ultrasound waves during ultrasonography. The radiopaque feature is preferably a polymeric coating, ceramic coating, or noble metal coating applied on the filter for enhanced fluoroscopy.
102 Citations
20 Claims
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1. A removable filter for capturing thrombi in a body vessel and having enhanced identifying features and reduced endothelium, the filter comprising:
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a plurality of struts having first ends attached together, each strut having an arcuate segment extending from the first end to an anchoring hook, the struts being configured to move between an expanded state for engaging the anchoring hooks with the body vessel and a collapsed state for filter retrieval or delivery, the struts having an anti-blood clot portion disposed thereon for reduced thrombi in the body vessel;
a hub configured to axially house the first ends, the hub comprising a wall disposed about the struts to attach the first ends together, the wall including an outer surface having an echogenic portion thereon for ultrasound detection; and
a retrieval hook having a free end housed in the hub, the retrieval hook extending oppositely from the struts to an arcuate portion having a radiopaque portion thereon for enhanced placement and removal of the filter in the body vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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- 13. A removable filter for capturing thrombi in a body vessel and having enhanced identifying and reduced endothelium features, the filter comprising an anti-blood clot portion disposed thereon for reduced thrombi in the body vessel, an echogenic portion formed thereon for ultrasound detection during ultrasonography, and a radiopaque portion disposed thereon for enhanced placement and removal of the filter in the body vessel.
Specification