| 摘要 |
<p>The present invention provides thoracentesis catheter instruments (10) having self-sealing valves (18) utilized in invasive medical procedures. The thoracentesis instruments (10) provide automatic sealing of a flow path by the self-sealing valve (18) upon removal of a needle (14) from a catheter (22). A drainage flow path to a pleural cavity is established by manual movement of another valve (20). The self-sealing valve (18) prevents insertion of the needle (14) through the valve (18) and the catheter (22).</p> |
