The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 1989
Filed:
Jun. 23, 1987
Jeremy P Watson, Clacton-on-Sea, GB;
Bard Limited, Sunderland, GB;
Abstract
A medical pump comprising an intake/discharge nozzle, a fluid circulator, an elongate barrel extending between and joining the nozzle and circulator, a flushing path and an efflux path peripherally about the flushing path connecting the circulator and nozzle, non-return valves within the paths providing for uni-directional flow from the nozzle through the efflux path to the circulator and from the circulator through the flushing path to the nozzle. A debris-collecting filter element is disposed within the efflux path within the barrel. The filter element and valves may be in the form of a replaceable cartridge. The valves may be constructed as a shuttle with joined oppositely operating valve plates. The valves may also comprise a resilient flap member with a flap formed therein, both the flap member and flap being independently operable and defining the two valves.