| 摘要 |
<p>A medico-surgical system for access to a hollow viscus 4 includes a member (2, Fig. 1) adapted to extend through an opening in the skin into the viscus of the patient so that one end of the member is located within the viscus and the other end terminates adjacent the skin. Balloons 28 and 30 are provided for retaining the one end of the member within the viscus. The balloons 28 and 30 also act as sealing means, adapted to seal the opening whilst allowing intermittent access to the viscus 4, e.g. by means of a catheter 6. Alternatively, the system comprises a tubular sleeve (92, Fig. 10), an inflatable cuff (94, Fig. 10) and a diaphragm (96, Fig. 10) having a self-sealing aperture. A trocar assembly 70 has an inclined cutting surface 74 and a channel (78, Fig. 6) into which is slid a catheter 86. <IMAGE></p> |
