Tissue collection assembly for biopsy device

A biopsy device includes a probe body, a needle portion, a hollow cutter, and a tissue sample holder. The needle portion extends from a distal end of the probe body and includes a transverse tissue receiving aperture. The hollow cutter is translatable relative to the needle portion to sever a tissue sample from tissue protruding through the aperture. The hollow cutter defines a cutter lumen. The tissue sample holder includes a body, a tissue sample tray, and a sample blocking member. And a sample blocking member disposed between the tissue sample tray and a distal end of the cutter, where the sample blocking member is configured to block transfer of a tissue sample from the cutter to the tissue sample tray to allow visual inspection of the tissue sample via a transparent portion of the biopsy device. 一种活检装置包括探针主体、针部分、中空切割器和组织样本固持件。所述针部分从所述探针主体远端延伸，且包括横向组织接纳孔径。所述中空切割器可相对于所述针部分平移，以将组织样本从突出穿过所述孔径的组织切断。所述中空切割器界定切割器内腔。所述组织样本固持件包括主体、组织样本托盘和样本阻止构件。所述样本阻止构件设置在所述组织样本托盘和所述切割器的远端之间，其中所述样本阻止构件被构造为阻止组织样本从所述切割器传输至所述组织样本托盘，