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.

대표청구항 ▼

[ We claim:] [1.] An apparatus for irrigation of a body cavity comprising:means for providing an uninterrupted and continuous supply of fluid for irrigation of a body cavity;means for pressurizing the irrigation fluid to a body cavity to create pressure inside the body cavity;a flexible supply condu

[ We claim:] [1.] An apparatus for irrigation of a body cavity comprising:means for providing an uninterrupted and continuous supply of fluid for irrigation of a body cavity;means for pressurizing the irrigation fluid to a body cavity to create pressure inside the body cavity;a flexible supply conduit inflow line connecting the supply of irrigation fluid to the body cavity;a fluid discharge conduit outflow line leading from the body cavity to withdraw fluid from the body cavity;means for creating a vacuum in the fluid discharge conduit outflow line to create suction inside the body cavity;means for controlling the suction and pressure inside the body cavity, andwherein the means for pressurizing the irrigation fluid is a positive displacement peristaltic pump, andwherein the means for creating a vacuum comprises a vacuum pump, and wherein the vacuum pump is connected to a vacuum tank, the peristaltic pump pumps irrigation fluid into a pressurized accumulator, and further comprising a pressure sensing means for sensing pressure inside the body cavity;a valve to control the rate of fluid passing through the outflow line, and wherein the means for controlling the vacuum and pressure inside the body cavity comprises a processor that controls the peristaltic pump and the valve, the processor receiving signals from the pressure sensing means; anda second outflow line substantially in parallel with the outflow line leading from the body cavity, and a second valve to control the rate of fluid passing through the second outflow line, and wherein the processor controls the second valve.