| 摘要 |
A delivery apparatus for the percutaneous placement of a medical device (10) at an area of interest (92) in a tissue mass (90) comprises an introducer (1 6) comprising a cannula (20) having an insertion tip (30), an expulsion opening (28) near the insertion tip (30), and a medical device (10) within the cannu la (20) comprising an imaging element (12), and a guide element (14) connected to the imaging element (12) and having a separable portion, and wherein the cannula (20) is inserted into the tissue mass (90) such that the medical device (10) can be expelled through the expulsion opening (28) into the tiss ue mass (90), and when the cannula (20) is withdrawn from the tissue mass (90), the imaging element (12) is placed within the tissue mass (90) at the area o f interest (92), and at least part of the guide element (14) extends exteriorl y of the tissue mass (90), and when the separable portion is separated from th e guide element (14), no part of the guide element (14) extends exteriorly of the tissue mass (90). |
