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:
Apr. 21, 2009
Filed:
Sep. 21, 2004
Marc Yap, Millville, UT (US);
James Doheny Bruke, Encinitas, CA (US);
Sean B. Cahill, Temecula, CA (US);
Elizabeth A. Paderi, Chesler, NY (US);
Ryan Sells, San Diego, CA (US);
David W. Meibos, West Jordan, UT (US);
Marc Yap, Millville, UT (US);
James Doheny Bruke, Encinitas, CA (US);
Sean B. Cahill, Temecula, CA (US);
Elizabeth A. Paderi, Chesler, NY (US);
Ryan Sells, San Diego, CA (US);
David W. Meibos, West Jordan, UT (US);
LMA North America, Inc, San Diego, CA (US);
Abstract
A medication infusion system may include a controller and a reservoir module including a reservoir containing medication to be delivered to an internal wound site via the controller. The controller may have a peristaltic pump driven by a motor to urge medication to flow toward the internal wound site, through a conduit. When the conduit is not tensioned via engagement with the pump, a valve blocks fluid flow to prevent unrestricted flow of medication. The valve may have a tapered plunger separated from an annular valve seat by a portion of the conduit that elongates under tension to enable withdrawal of the plunger from the valve seat. Alternatively, the valve may have features such as a spherical plunger between two annular valve seats, a rigid tubular member biased with respect to the conduit, or an opening in the conduit that moves axially or radially to enable fluid flow.