초록 ▼

An improved fluid management system for irrigation of a body cavity and in particular for use in arthroscopic surgery having a pressurized fluid circuit for supplying irrigation fluid and a vacuum fluid circuit for withdrawing waste fluid from the cavity. In a preferred embodiment there is an uninte

An improved fluid management system for irrigation of a body cavity and in particular for use in arthroscopic surgery having a pressurized fluid circuit for supplying irrigation fluid and a vacuum fluid circuit for withdrawing waste fluid from the cavity. In a preferred embodiment there is an uninterrupted fluid supply comprised of a plurality of sterile solution saline bags with an automatic spiker to perforate the bags. The system is processor controlled with numerous safety and design features to automate arthroscopy to the highest degree possible. Some of the features include the monitoring and tracking of cavity pressure and flow rates to predetermined pressure and flow rates, tracking cavity to mean blood pressure, overpressure protection, a plurality of pressure and flow rate baseline settings, monitoring, setting and controlling saline supply, and specialized functions for providing pressure and flow rates for typical surgical procedures such as lavage, clear view, and burr/shaver. One or more vacuum discharge lines may be provided with an automatic self-cleaning feature. The system is compact and optionally employs a number of disposable components, including a novel fluid accumulator. In one preferred embodiment there is a compact gravity irrigation fluid management apparatus employing automatic pressure regulating means. An improved console for monitoring out-of-fluid anomalous conditions is also disclosed.

대표청구항 ▼

[ We claim:] [1.] A fluid management system for irrigation of a body cavity comprising:a reservoir of fluid suspended a height "h" above the body cavity, said reservoir containing a fluid discharge conduit leading from said reservoir to the body cavity, with said reservoir providing fluid under pres

[ We claim:] [1.] A fluid management system for irrigation of a body cavity comprising:a reservoir of fluid suspended a height "h" above the body cavity, said reservoir containing a fluid discharge conduit leading from said reservoir to the body cavity, with said reservoir providing fluid under pressure to said body cavity in accordance to the height "h" in gravitational head;means for raising and lowering said reservoir of fluid to vary said gravitational head of pressurized fluid to said body cavity;control means to control said means for raising and lowering said reservoir of fluid;wherein said control means are processor based and further comprising means to sense pressure inside said body cavity, said control means controlling said means for raising and lowering said reservoir of fluid to vary the height "h" in response to said means to sense pressure.