| 摘要 |
<p>The present invention relates to a surgical instrument of the trocar type, characterised by the fact that it comprises a cannula (10), a needle (30) engaged in the cannula (10), and manually controlled locking means (50) capable of selectively immobilizing the needle (30) in translation, relative to the cannula (10), in such a way that, in a rest position, the cutting end (33) of the needle (30) is immobilized in the cannula (10) in a position set back from the proximal end of the latter. …<IMAGE>… </p> |
