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:
May. 10, 2016
Filed:
Sep. 24, 2013
Po-ying LI, Monrovia, CA (US);
Shengtao LI, La Puente, CA (US);
Jonathan K. Lee, Montebello, CA (US);
Patrick Ryan, Los Angeles, CA (US);
Alice Lai, Pasadena, CA (US);
Sean Caffey, Pasadena, CA (US);
Mark S. Humayun, Glendale, CA (US);
Po-Ying Li, Monrovia, CA (US);
Shengtao Li, La Puente, CA (US);
Jonathan K. Lee, Montebello, CA (US);
Patrick Ryan, Los Angeles, CA (US);
Alice Lai, Pasadena, CA (US);
Sean Caffey, Pasadena, CA (US);
Mark S. Humayun, Glendale, CA (US);
MiniPumps, LLC, Pasadena, CA (US);
Abstract
Embodiments of the present invention utilize a closed-loop feedback control system to ensure accurate drug delivery. This control system may, for example, utilize a flow sensor to measure the volume of delivery and an intelligent control algorithm to anticipate and compensate for overdoses and underdoses. Feedback control systems in accordance herewith can be applied to any piston- or plunger-driven pump system utilizing sensors that measure flow directly or indirectly. In some embodiments, adjustments are made based on the flow 'tail' that occurs in a piston- or plunger-type pump as relaxation of the plunger material continues to push fluid out of the drug reservoir; this residual flow eventually ceases after the plunger returns to its natural state.