Apparatus for supplying liquid to a body cavity during an endoscopic procedure includes a feedback loop-con-trolled liquid supply device inherently capable of supplying liquid at a substantially constant pressure substantially independent of the flow rate of liquid delivered by the liquid supply device within a relatively wide range of flow rate. Also disclosed are a disposable plastic pump cassette having an inflow pump in a housing, and an operative cannula. The surgical procedure is performed with continuous control over the body cavity pressure, regardless of the outflow flow rate.
申请公布号
CA2076502(A1)
申请公布日期
1993.02.22
申请号
CA19922076502
申请日期
1992.08.20
申请人
BEISER, DAVID G.;WOOLFSON, STEVEN B.;KRAUSE, KENNETH W.
发明人
BEISER, DAVID G.;WOOLFSON, STEVEN B.;KRAUSE, KENNETH W.