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. 03, 2018
Filed:
Jun. 22, 2015
Medtronic Minimed, Inc., Northridge, CA (US);
R. Marie Tieck, Los Angeles, CA (US);
Medtronic MiniMed, Inc., Northridge, CA (US);
Abstract
An embodiment of a fluid infusion device includes a fluid pump mechanism having a rotor and a stator. The rotor includes a reference surface and a cam element rising from the reference surface. The stator includes a cam element having a stator cam surface. The cam elements cooperate to axially displace the rotor as a function of rotation. A biasing element provides force to urge the cam elements together. A drive motor is coupled to actuate the rotor to pump medication fluid from a fluid cartridge module to a body, via a subcutaneous conduit. A force sensor is coupled to the rotor to generate output levels in response to force imparted thereto. The force sensor cooperates with a detection circuit that obtains and processes the output levels to detect occlusions in a fluid path downstream of the fluid pump mechanism.