| 摘要 |
<p>A sheath device (1) for insertion into an anal canal of a patient, the sheath device comprising an elongate tubular member (10) having a first longitudinal axis (A1) and comprising a distal end (11) and a proximal end (12); an internal guide (20) for guiding an obturator (220), said internal guide extending from an opening at said proximal end (12) to an opening at said distal end (11); a needle guide (30) for guiding a needle, the needle guide (30) extending at least partly along the tubular member (10); and - a coupling member (40) for attaching said tubular member (10) to an optic (120), said coupling member (40) having a second longitudinal axis (A2), the coupling member comprising a distally facing part (41); a proximal end (42); wherein said distally facing part (41) and said proximal end (12) of the tubular member (10) are adapted for attaching said coupling member (40) to said tubular member (10), the tubular member 10 being rotatable relative to the coupling member (40) when attached; and wherein said proximal end (42) is adapted for detachably attaching the coupling member (40) to an optic (120), the coupling member (40) and the optic (120) being in a locked state against rotation and displacement along longitudinal axis (A2) with respect to each other when attached.</p> |
