Biopsy device tissue sample holder with bulk chamber and pathology chamber

摘要

A biopsy device includes a probe, a holster, and a tissue sample holder for collecting tissue samples. The probe includes a needle and a hollow cutter. The tissue sample holder includes a housing having one or more chambers that are configured to receive a removable tray including one or more prongs and a bulk chamber of a different volume than the one or more chambers. The housing is releasably engageable with the probe. Each tray prong is configured to receive a tissue sample communicated through the cutter lumen. The tray is removable from the housing, such as along an axial direction. The tissue sample holder is rotatable to successively index each chamber to the cutter lumen. The trays may be flexible, resilient, or rigid.

主权项

1. A biopsy device, the biopsy device comprising:
(a) a probe body; (b) a needle portion extending distally from the probe body, wherein the needle portion comprises a transverse tissue receiving aperture; (c) a hollow cutter positioned within the needle portion, wherein the cutter is translatable within the needle portion to sever a tissue sample from tissue protruding through the aperture, wherein the hollow cutter defines a cutter lumen; and (d) a tissue sample holder having a distal end and a proximal end, wherein the tissue sample holder comprises:
(i) at least two tissue sample chambers, wherein each of the chambers extends in an axial direction, wherein the axial direction is parallel with the cutter lumen, and(ii) at least one tray removably engaged with at least one of the tissue sample chambers, wherein the at least one tray is removable proximally from the tissue sample chamber in an axial direction,wherein the at least two tissue sample chambers comprises a first chamber and a second chamber, wherein the first tissue sample chamber defines a first volume, wherein the second tissue sample chamber defines a second volume, wherein the first volume is greater than the second volume,wherein the tissue sample holder is operable to selectively index a tissue sample chamber of the first and second tissue sample chambers with the cutter lumen to receive the tissue sample in the indexed tissue sample chamber,wherein the tissue sample holder is operable to selectively rotate the at least two tissue sample chambers through at least two angular positions, wherein the first chamber extends along a first angular extent, wherein the second chamber extends along a second angular extent, and wherein the first angular extent is greater than the second angular extent.