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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.:

US 9849238 B1

PDFFull Text
Date of Patent:
Dec. 26, 2017

Filed:

Sep. 24, 2013

Drug-delivery pump with intelligent control

Applicant:

Minipumps, Inc., Pasadena, CA (US);

Inventors:

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);

Assignee:

MINIPUMPS, LLC, Pasadena, CA (US);

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Quynh-Nhu H Vu

Assistant Examiner:

Jenna Zhang

Int. Cl.
CPC ...
A61M 5/168 (2006.01); A61M 5/172 (2006.01); A61M 5/155 (2006.01); A61M 5/145 (2006.01); A61M 5/31 (2006.01); G06F 19/00 (2011.01); A61M 5/142 (2006.01); A61M 5/148 (2006.01); A61M 31/00 (2006.01);
U.S. Cl.
CPC ...
A61M 5/172 (2013.01); A61M 5/148 (2013.01); A61M 5/14244 (2013.01); A61M 5/14248 (2013.01); A61M 5/14276 (2013.01); A61M 5/14526 (2013.01); A61M 5/16804 (2013.01); A61M 5/16809 (2013.01); A61M 5/3146 (2013.01); G06F 19/3468 (2013.01); A61M 5/14586 (2013.01); A61M 5/14593 (2013.01); A61M 5/155 (2013.01); A61M 5/16854 (2013.01); A61M 31/002 (2013.01); A61M 2005/14204 (2013.01); A61M 2005/14252 (2013.01); A61M 2005/14513 (2013.01); A61M 2205/0222 (2013.01); A61M 2205/0238 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3341 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/50 (2013.01); A61M 2205/8206 (2013.01); A61M 2205/8231 (2013.01); A61M 2205/8293 (2013.01); A61M 2210/0612 (2013.01); A61M 2210/0693 (2013.01);
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 during a 'priming' stage when liquid is pumped through the internal fluid path but does not exit the pump.

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