| 摘要 |
A method for implanting a biopsy marker at a biopsy site within bodily tissue is disclosed. A marker applier is provided which has a marker cannula for receiving the biopsy marker. The marker cannula has a lateral marker window, and the marker is positioned at the window for ejection therefrom. The marker applier also has an ejector rod moveable longitudinally in the marker cannula which, when actuated, forces the ejection of the biopsy marker from the marker cannula through the window and into the tissue. The marker applier is inserted into a biopsy cannula positioned at the biopsy site. The biopsy cannula also has a lateral window, and it is necessary to orient the lateral marker window into alignment with the lateral biopsy window. Upon proper orientation, the ejector rod is actuated, and the biopsy marker is ejected from the marker cannula for implantation in the tissue in a direction substantially perpendicularly to the longitudinal movement of the ejector rod. This method is particularly useful for implantation of a marker at a breast biopsy site to mark the location of the breast biopsy during and after the biopsy procedure.
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