| 主权项 |
1. A disposable biopsy unit for removable coupling to a handheld biopsy driver, comprising:
a biopsy needle unit including a carrier, a biopsy needle and a cutting sheath, the carrier being configured to mount the biopsy needle and the cutting sheath, the biopsy needle having a sample removal chamber and a longitudinal axis, the cutting sheath being coaxially arranged with the biopsy needle, the cutting sheath being configured to move along the longitudinal axis relative to the biopsy needle; a pump having an elongate cylinder and a plunger, the plunger configured to be movable inside the elongate cylinder in a first direction from a proximal end of the elongate cylinder to a distal end of the elongate cylinder to generate a vacuum and configured to be movable inside the elongate cylinder in a second direction from the distal end of the elongate cylinder to the proximal end of the elongate cylinder to build up pressure; a connection element, the proximal end of the elongate cylinder being coupled in fluid communication with the biopsy needle via the connection element, the connection element configured to facilitate an arrangement of the disposable biopsy unit wherein the elongate cylinder is positioned such that the elongate cylinder and the biopsy needle are in a parallel arrangement; and a holder piece configured to hold the elongate cylinder and the biopsy needle in the parallel arrangement. |
