| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an apparatus and method for controlling the flow of aspiration fluid in an aspiration chamber of a surgical cassette. <P>SOLUTION: The aspiration chamber having an aspiration port 632 positioned at or close to the bottom of an aspiration chamber 624 is provided. When the aspiration fluid enters the aspiration chamber from below the fluid surface (e.g., from a port located at the bottom or on a sidewall close to the bottom), it does not create disturbance at the liquid/air interface and thus does not disturb continuous level sensing. Also, since the aspiration port is placed at or very close to the bottom of the aspiration chamber, the liquid inside the chamber can be fully used for sustained reflux and push priming. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
