Patent ID: 8241299

Claim:
A biopsy delivery device comprising: a hollow tube having a proximal end, a distal end, an internal lumen having an internal surface, and a lateral marker exit; a distal endpiece affixed to the distal end of the hollow tube, wherein the lateral marker exit is proximal of the distal endpiece; and at least one biopsy marker having an axial length, the at least one marker disposed within the internal lumen of the hollow tube proximal of the lateral marker exit, the at least one marker deployable from the tube through the lateral marker exit; wherein the hollow tube comprises at least one pair of internal protrusions, each having a longitudinal length, wherein the longitudinal length of each protrusion is greater than the axial length of the at least one biopsy marker, wherein each protrusion engages the at least one marker and extends along at least a portion of the length of the at least one marker disposed within the internal lumen, wherein one protrusion of the at least one pair of internal protrusions has a first longitudinal length, wherein another protrusion of the at least one pair of internal protrusions has a second longitudinal length, and wherein the first longitudinal length is different from the second longitudinal length.