| 摘要 |
<p>The invention relates to a double lumen needle comprising an evacuation end located at the piercing distal end (7a) of a rigid tube (7) and a suction end (8) which is set back and which opens laterally at the sampling lumen (4). The inventive needle comprises an end piece (2), the distal part (2a) of the proximal end (2c) of which is circular in section and which comes to an end between the evacuation end (7a) of the return lumen (3) and the suction end (8) of the sampling lumen (4). Said end piece is provided with (i) a receptacle (5) for holding said rigid tube (7) and (ii) the sampling lumen (4), both of which are longitudinally disposed side by side. The distal end (2a) of the end piece thereby forms a sharp increase in the section of the needle in the extension of the sampling lumen (4).</p> |
