| 摘要 |
<p>A biopsy apparatus (100) for taking internal samples from a patient that employs a hollow needle penetrating member (10) with an integral cutter (15) and an inner member (30) for retrieving tissue samples. The penetrating member includes a needle tip, a tissue port (25), and a vacuum for assisting in severing tissue samples. The inner member contains a tissue basket for receiving at least one tissue sample and can be rotated independently of the penetrating member and removably positioned while the penetrating member remains in position in the patient. The method for the biopsy apparatus includes positioning the tissue port of the apparatus at least partially within or adjacent a tissue portion to be sampled, applying a vacuum to the tissue port and displacing the outer member to sever a tissue sample, and withdrawing the inner member proximally to transport the tissue sample through the outer member. The biopsy apparatus is capable of severing and recovering sequential tissue samples while the penetrating member remains within the patient.</p> |
