| 摘要 |
A biopsy device includes a cutting cannula mechanism having a cutting cannula and an inner stylet mechanism having an inner stylet coaxial with the cutting cannula. A cocking mechanism is configured to cock the cutting cannula mechanism and the inner stylet mechanism by retracting each of the cutting cannula and the inner stylet in a proximal direction to a cocked position. A trigger device is configured to fire at least one of the inner stylet mechanism and the cutting cannula mechanism to advance a respective at least one of the inner stylet and the cutting cannula from the cocked position in a distal direction. A selector assembly includes a selector switch having an exterior tab accessible by a user. The selector assembly is configured to select between at least two user selectable operating modes and at least two user selectable firing distances. |
