EMBOLIC FILTERS HAVING MULTIPLE LAYERS AND CONTROLLED PORE SIZE

The invention provides a device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient's body including a filter element. The filter element is expandable from a collapsed configuration to an expanded configuration. When the filter element is in th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KUSLEIKA, RICHARD, OSLUND, JOHN, CLUBB, THOMAS
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	The invention provides a device for filtering emboli from blood flowing through a lumen defined by the walls of a vessel in a patient's body including a filter element. The filter element is expandable from a collapsed configuration to an expanded configuration. When the filter element is in the expanded configuration, the average pore size is from 30 to 300 microns and the standard deviation of the pore size is less than 20 percent of the average pore size. The filter element has two or more filtering layers, each filtering layer having pores, and each filtering layer being adjacent to at least one other filtering layer.