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. 18, 2011
Filed:
Jun. 26, 2009
Thomas Irvin Folden, Alamo, CA (US);
Martin Joseph Crnkovich, Walnut Creek, CA (US);
Colin Weaver, Pleasanton, CA (US);
Thomas Irvin Folden, Alamo, CA (US);
Martin Joseph Crnkovich, Walnut Creek, CA (US);
Colin Weaver, Pleasanton, CA (US);
Fresenius Medical Care North America, Waltham, MA (US);
Abstract
A container for use with a hemodialysis apparatus having a vent structure is described. The vent structure is porous, and allows air in the container to vent when the container is being filled with fluid, but expands when the vent structure becomes wet, when filling is complete, thereby closing off the pores and inhibiting (e.g., preventing) fluid from flowing through the vent structure, and reentry of air into the container. The vent structure can also include a micro-porous membrane.