ECHOGENIC NEEDLE FOR BIOPSY DEVICE

摘要

A biopsy device comprises an elongate needle having a piercing tip, a lateral aperture, and one or more echogenic features. In some versions, a dimpled surface provides the one or more echogenic features. The dimples may be concave or convex. In some versions, the piercing tip comprises a blade, and the one or more echogenic features are provided by openings formed transversely through the blade. In some versions, the one or more echogenic features are provided by serrations of the blade. Such serrations may be jagged or rounded. In some versions, the piercing tip is multi-faceted, and the facets of the tip provide the one or more echogenic features. A coagulant may also be provided on the needle. The piercing tip of the needle may rotate relative to other portions of the needle to facilitate insertion of the needle in tissue.