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:
Aug. 17, 2010
Filed:
Jan. 24, 2006
Mark A. Hopkins, Mission Viejo, CA (US);
Kamran Salari, Irvine, CA (US);
David L. Williams, Newport Beach, CA (US);
Mark A. Hopkins, Mission Viejo, CA (US);
Kamran Salari, Irvine, CA (US);
David L. Williams, Newport Beach, CA (US);
Alcon, Inc., Hunenberg, CH;
Abstract
A cassette having an elastomeric sheet that is bonded or mechanically attached to a rigid substrate. A flow channel is molded into the rigid substrate that corresponds to a flow channel molded into the elastomeric sheet. The cassette is used in combination with a peristaltic pump having pump head rollers that are mounted radially from the axis of rotation of the pump motor so as to compress the elastomeric flow channels against the rigid substrate during operation. The flow channels molded into the rigid substrate have smooth, fluid lines free from sharp edges and abrupt direction changes and correspond with the fluid channels molded into the elastomeric sheet so as to provide a transition region with a relatively constant cross-section over its entire length that approximates the cross-sectional area of the flow channels molded into the rigid substrate and the fluid channel molded into the elastomeric sheet so that the entire fluid path is of relatively constant cross-sectional area.