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. 15, 2024
Filed:
Feb. 23, 2021
Carefusion 303, Inc., San Diego, CA (US);
Fanqing Meng, Buffalo Grove, IL (US);
Marc Weimer, South Jordan, UT (US);
CareFusion 303, Inc., San Diego, CA (US);
Abstract
Pumping segments are described herein. In certain embodiments, a peristaltic pumping segment include a tubing segment, a plunger, a downstream occluder, and an upstream check valve. The plunger is movable to selectively expand the pumping volume to draw in fluid flow and contract the pumping volume to administer the fluid flow. The occluder is movable to selectively engage against the downstream portion to prevent fluid flow from the downstream portion during expansion of the pumping volume and to permit fluid flow from the pumping volume through the downstream portion during contraction of the pumping volume. The check valve outlet is in fluid communication with the pumping volume, and the valve element is configured to permit fluid flow from the valve inlet to the pumping volume during expansion of the pumping volume and to prevent fluid flow from the pumping volume to the valve inlet during contraction of the pumping volume.