Endoscopic surgical instrument for aspiration and irrigation.

摘要

An endoscopic surgical intrument 10 for aspiration and irrigation of a surgical site. The device includes at least one rotatable trumpet valve 14, 18 to provide for variable orientation of the device during use. Connection ports 16, 20 for irrigation fluid and a suction means are provided which communicate with a single lumen cannula 24 which transports both the irrigation fluid and the suction pressure to the surgical site. The single lumen cannula is provided with a sleeve means 26 to vary the pressure of the irrigation fluid to provide for high pressure application of the irrigation fluid to provide for high pressure application of the irrigation fluid to perform hydrodissection. A plurality of dissector tips 40 and a novel means 92, 96 of securing the tips to the single lumen cannula are also disclosed. <IMAGE>