HEMOSTATIS VALVE

An introducer sheath assembly having an improved valve assembly (10) including at least three elastic disc shaped membranes (30). A first membrane (32) has a circular hole (38) through the center to sealingly receive a catheter while a second membrane (34) has a center hole (40) smaller than the hol...

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Bibliographische Detailangaben
Hauptverfasser:	ROBERT L. GUEST, ALEXANDER S. WITHERS
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung:	An introducer sheath assembly having an improved valve assembly (10) including at least three elastic disc shaped membranes (30). A first membrane (32) has a circular hole (38) through the center to sealingly receive a catheter while a second membrane (34) has a center hole (40) smaller than the hole (38) in the first membrane (32) to sealingly receive a guidewire. The second membrane (34) also has at least one slit (42) through the hole (40) to accomodate passage of the larger catheter through the second membrane (34). A third membrane (36) contains at least one slit (44) through its center to seal the valve assembly (10) in the absence of a guide wire or catheter.