| 摘要 |
<p>A biopsy surgical appliance comprises a needle for biopsy consisting of two components called stylet (21) and cannula (31), which are disposed coaxially along an axis (Y) and are activated by a mechanical device with two slides (20, 30) which can slide longitudinally inside a shell (10, 50). The slide (30) which supports the rear portion of the cannula (31) comprises an extension (35) which projects outside the shell (50) and slides longitudinally along a through-slot (71) provided in one wall of said shell (50), in order to be able to withdraw said second slide (30) from the exterior, by acting on a pawl (80) which is disposed at the free end of said extension (35) in order to uncover a recess (29) of the stylet (21) in which the sample of tissue collected is accommodated.</p> |
