| 摘要 |
<p>The proximal end portion (29) of the relatively outer cannula (6) of the catheter (2) has a pusher tab (44) relatively radially upstanding on the cylindrical surface (32) thereof, which projects relatively radially outwardly from the cylindrical outline of the relatively outer cannula at the outer periphery thereof, to the extent that when a user grips the hilt (54) of the relatively inner cannula (4) with one hand (70) to advance the distal end portion (36) of the relatively outer cannula into a vein (80) or other passage and disengages the relatively inner cannula from the bore of the relatively outer cannula, he/she can apply one finger of his/her one hand, such as the index finger (72) thereof, to the tab, to drive the relatively outer cannula relatively forward toward the puncture (98) in the skin (78). The tab is limited in angular extent about the axis of the relatively outer cannula, however, so that after it has been angularly oriented about the axis (38) of the relatively outer cannula to up-stand at a location opposite the skin for the advancement and insertion step, the relatively outer cannula can be rotated about its axis to lay the tab over against the skin while a strip of adhesive tape (96) or the like is applied over the tab to secure the relatively outer cannula to the skin, both lengthwise and crosswise of the axis, as well as rotationally thereof.</p> |
