Graeme P Winslow

US Patent:

55514480, Sep 3, 1996

Filed:

Jul 21, 1994

Appl. No.:

8/278560

Inventors:

Paul A. Matula - Brookfield CT
William J. McCabe - New Canaan CT
Gerald T. McCourtney - Orono MN
Dennis Gemmell - Robinsdale MN
Jerry Hamlin - Golden Valley MN
Graeme Winslow - Excelsior MN

Assignee:

United States Surgical Corporation - Norwalk CT

International Classification:

B65D 8300

US Classification:

128897

Abstract:

An endoscopic surgical instrument for aspiration and irrigation of a surgical site. The device inclues at least one rotatable trumpet valve to provide for variable oreintation of the device during use. Connection ports for connection to irrigation fluid and a suction source are provided which communicate with a single lumen cannula which transports both the irrigation fluid and the suction pressure to the surgical site. The single lumen cannula is provided with a sleeve to vary the pressure of the irrigation fluid to provide for high pressure application of the irrigation fluid to perform hydrodissection. A plurality of dissector tips and a novel mechanism for securing the tips to the single lumen cannula are also dislcosed. Also disclosed is a novel dispensing device for the tips and a kit which includes the tip dispenser and an endoscopic surgical instrument.