Patent ID: 8740809
Filing Date: 2014-06-03
Classification: A61B

Abstract:
1. A biopsy device, comprising: a coring cannula having a longitudinal axis and a shaft centered on the axis; a stylet having a tip containing at least one blade and a central passage; a localization needle having a channel and being slidably disposed within the central passage; a drive mechanism for rotating the cannula; a guide element having a first end and a second end and being slidably disposed within the channel of the localization needle, the guide element being movable between a first position to a second position within the localization needle; and a locking member formed at the second end of the guide element, the locking member including a locking end and a tail end, the locking end having an unlocking configuration and a locking configuration, the locking end being in the unlocking configuration and contained within the localization needle when the guide element is in the first position, the locking end being in the locking configuration and being outside the localization needle when the guide element is in the second position, the tail end being fixedly coupled to the second end of the guide element, wherein the locking member is configured to allow the locking member to be decoupled from the guide element when the locking end is outside of the localization needle.