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:
Dec. 09, 2008
Filed:
Jul. 30, 2004
Marc Yap, Millville, UT (US);
Sean B. Cahill, Temecula, CA (US);
Jeffery T. Mason, Escondido, CA (US);
Elizabeth A. Paderi, La Jolla, CA (US);
Byron Hourmand, Vista, CA (US);
Marc Yap, Millville, UT (US);
Sean B. Cahill, Temecula, CA (US);
Jeffery T. Mason, Escondido, CA (US);
Elizabeth A. Paderi, La Jolla, CA (US);
Byron Hourmand, Vista, CA (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. A blockage sensor disables the motor and provides an alarm if the tube is blocked. The blockage sensor detects distention of a preferentially distendable portion of the tube, which may be routed about a constraining member. When blockage occurs, the tube distends preferentially along a direction generally parallel to the radius about which the tube bends. The blockage sensor may include a variety of switching elements, such as a pushbutton switch, a metal ring encircling the tube to make contact between conductors, and/or a metal bridge bendable to make contact between conductors.