Biopsy device cannula seals

A biopsy device includes an elongated housing having a manifold, an outer cannula partially and slidably disposed in the manifold, and an inner cannula partially and slidably disposed in a lumen of the outer cannula. The biopsy device further includes an outer cannula seal disposed between the manif...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BURCHFIELD, Brent, GILLUM, Justin, DEFREITAS, Kenneth F, GIRGENTI, John
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CYLINDERS DIAGNOSIS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HUMAN NECESSITIES HYGIENE IDENTIFICATION LIGHTING MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE PISTONS SEALINGS SURGERY THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A biopsy device includes an elongated housing having a manifold, an outer cannula partially and slidably disposed in the manifold, and an inner cannula partially and slidably disposed in a lumen of the outer cannula. The biopsy device further includes an outer cannula seal disposed between the manifold and the outer cannula, the outer cannula seal including an interference ring portion disposed adjacent an inner surface of the manifold, a beaded ring portion that contacts an outer surface of the outer cannula, and a flexible portion extending between the interference ring portion and the beaded ring portion.