| 摘要 |
<p>A loading dilator (10) introducing a tracheostomy tube (100) into a stoma (140) formed in an outer body wall of a patient includes a handle (12) and a tubular portion (14) received in a distal opening (61) of the handle. The tubular portion includes a radially outer dilator member (20), and a radially inner actuation member (32) substantially spanning the length of the tubular portion. A radially intermediate segment has a conical member (26) at a tapered distal end of the tubular portion, a compressible member (30) positioned proximal of the conical member, and an elongated tubular member (40) proximal of the compressible member. The conical member is engaged with the inner actuation member such that the conical member and inner actuation member are proximally movable relative to the elongated tubular member, whereby the compressible member is deformable from a smaller diameter to a larger diameter for facilitating entry into the stoma of a medical apparatus. The handle has a trigger (80) operatively engaged with the inner actuation member for effecting proximal movement of the inner actuation member and conical portion.</p> |
