| 摘要 |
A perineal prostate biopsy apparatus comprising a cannula for reaching a prostate gland of an adult human male through his perineum; and a coaxial needle comprising a hollow needle shaft having an open piercing tip at its distal end and being arranged to lie within the cannula so that the piercing tip protrudes from a distal end of the cannula; and,a stylet adapted to lie within the hollow needle shaft so that a distal tip of the stylet closes the piercing tip of the needle. |
