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:
Jul. 01, 2003
Filed:
Aug. 31, 2001
Khoi Minh Nguyen, San Diego, CA (US);
Stephen O'Neil Ross, Oceanside, CA (US);
Scott Wayne Beaver, San Diego, CA (US);
Baxter International Inc., Dearfield, IL (US);
Abstract
The present invention provides an infusion pump for providing a flow of a liquid through an tube . The infusion pump includes at least two occluders having an open position and a closed position for releasably pinching-off the tube . A metering chamber is disposed between the two occluders . A first plunger and a second plunger are provided, each plunger having an open position and a closed position for releasably compressing the metering chamber. In the method of the present invention, an occluder releasably pinches-off the tube near the source of the liquid at a first location. The second occluder releasably pinches-off the tube at a second location that is downstream from the source of the liquid and the first location. The tube is released at the first location and a plunger compresses the tube between the first location and the second location, thereby generating a flow of the liquid through the tube in a direction towards the source of liquid