Patent ID: 6537048
Filing Date: 2003-03-25
Classification: F04C

Abstract:
A medical gear pump for sucking and irrigating, comprisinga pot-like pumping housing having a first and a second cylindrical opening overlapping one to another, said two openings are connected to an inlet and an outlet, respectively, said pot-like pump housing having a closed bottom at one side and an open end at an opposite side, a driving gearwheel arranged in said first opening, a driven gearwheel arranged in said second opening, said driving gearwheel and said driven gearwheel are meshing a single trunnion protruding from an inner side of said bottom of said pot-like pump housing and extending into said second opening, said driven gearwheel being mounted onto said trunnion, a lid for closing said open end of said pot-like pump-housing, said lid having a bore therein, and a coupling pin protruding from said driving gearwheel and extending through said bore in said, lid said pot-like pump housing and said lid having no protruding structure to support said driving gearwheel.