| 摘要 |
A proximal end adaptor for a catheter has a first elongate member having a first portion defining a first axial lumen therethrough adapted to receive an inner sleeve of the catheter and a second elongate member having a second axial lumen adapted to receive, in sliding engagement, at least part of the first portion of the first elongate member. The second elongate member has a catheter engagement means adapted to engage an outer sleeve of the catheter, wherein the sliding engagement of the first and second elongate members enables relative longitudinal displacement between the inner and outer sleeves of the catheter. The proximal end adaptor has connecting means attached to the first elongate member for connecting the adaptor to a collection receptacle, and a locking mechanism to enable the first and second elongate members to be locked in at least a first predetermined position by a relative rotation of the first and second elongate members about their axis, to thereby prevent said relative longitudinal displacement of the catheter sleeves. |
