Surgical gas delivery system for gas sealed insufflation and recirculation with pneumatically powered blocking valves
AssigneeConmed Corporation
InventorMichael L. Koltz
Life of this patent
Estimating the term…
Abstract
A blocking valve assembly for a surgical gas delivery device is disclosed, which includes a valve body supporting a plurality of pneumatically actuated pistons, each piston mounted for independent movement within a respective piston cylinder between a first position blocking a respective gas passage communicating with a filter cartridge to facilitate a leak test of the gas delivery device and a second position permitting gas flow through the gas passage communicating with the filter cartridge to facilitate a surgical procedure.
Claims20
A blocking valve assembly for a surgical gas delivery device, comprising:
- a valve body supporting a plurality of pneumatically actuated pistons, each piston mounted for independent movement within a respective piston cylinder between a first position blocking a respective gas passage communicating with a filter cartridge to facilitate a leak test of the gas delivery device and a second position permitting gas flow through the gas passage communicating with the filter cartridge to facilitate a surgical procedure.
A surgical gas delivery device, comprising:
- a) a device housing defining a reception cavity configured to receive a filter cartridge having a plurality of gas passages extending therethrough;
- b) a valve body located within the device housing adjacent the reception cavity and supporting a plurality of pneumatically actuated pistons, each piston mounted for independent movement within a respective piston cylinder of the valve body between a retracted position blocking a respective gas passage communicating with a filter cartridge to facilitate a leak test of the gas delivery device and an extended position permitting gas flow through the gas passage communicating with the filter cartridge to facilitate a surgical procedure.
Dependencies are inferred from the claim text.