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:
Oct. 10, 1989
Filed:
Dec. 01, 1987
Applicant:
Inventors:
Lanny A Gorton, Sunland, CA (US);
John P Pelmulder, Chatsworth, CA (US);
Assignee:
Pacesetter Infusion, Ltd., Sylmar, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B / ; E04B / ;
U.S. Cl.
CPC ...
417 63 ; 417360 ; 417479 ;
Abstract
A disposable cassette containing a fluid pump for use with a main unit including apparatus for driving the pump is disclosed which cassette utilized a piston-type pump in conjunction with active valves to pump fluid. The inlet and outlet channels in the cassette are formed by a diaphragm covering open channels in the cassette body, and the same diaphragm is used to form the active valves, which are actuated by valve actuators in the main pump unit. Additional features of the cassette include an air trap upstream from the pump, and an integral clamp which allows priming of the cassette.