A mechanism to facilitate the insertion of radioactive sources/source strands into soft tissue, such as breast tissue, and a method that utilizes this mechanism with the goal of improving the reproducibility of the procedure and ensuring that the sources are reliably and consistently inserted in an exact position per a patient prescription treatment plan from patient to patient as well as improve the ease-of-use of the device and procedure are provided.本發明提供一種容易將放射性來源索插入軟組織(諸如，乳房組織)中之機械裝置，及一種使用此機械裝置的方法，其目標為改良該程序的再現性及保證可在每個患者指定治療計劃(依每位患者而異)中將來源可信賴且一致地插入精確的位置中，和改良該裝置及程序的簡易操作性。
