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:
Mar. 29, 2016
Filed:
Apr. 03, 2009
Colin A. Chong, Burbank, CA (US);
Eric M. Lorenzen, Granada Hills, CA (US);
Rafael Bikovsky, Oak Park, CA (US);
Arsen Ibranyan, Glendale, CA (US);
Colin A. Chong, Burbank, CA (US);
Eric M. Lorenzen, Granada Hills, CA (US);
Rafael Bikovsky, Oak Park, CA (US);
Arsen Ibranyan, Glendale, CA (US);
Medtronic MiniMed, Inc., Northridge, CA (US);
Abstract
A casing may be configured to envelop at least a portion of a plunger arm attached to a plunger head located in a reservoir. A plunger head moveable in a reservoir may have a front portion comprising a first material compatible with fluidic media in an interior volume of the reservoir. A seal member having a first end and a second end that taper to a mid-portion may be positioned between a reservoir and a plunger head. A bias member may be configured to force a plunger arm operatively connected to a plunger head against a drive member to operatively engage the plunger arm to the drive member. A plunger head moveable in a reservoir may have a first ridge, a second ridge, a seal member adjacent at least one of the ridges, and protrusions arranged around at least one of the ridges.