| 摘要 |
<p>An open loop system for delivering fluid during hysteroscopic surgery. The system includes first and second fluid conduits (12, 14) in fluid communication with the uterine cavity of a patient. First and second measuring devices (26, 28) are provided for measuring the amount of fluid flowing into and out of the uterus. The measuring devices (26, 28) produce electronic signals which are communicated to a controller (30) which uses them to calculate a value reflecting the difference in in-flow and out-flow. This difference is then compared with a preset value; if the preset value is exceeded, the surgeon knows the patient is absorbing too much fluid, and the procedure may be terminated.</p> |
