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:
Oct. 01, 2013
Filed:
Oct. 18, 2011
James M. Haase, Maplewood, MN (US);
Ronald L. Mezera, Lake Elmo, MN (US);
John M. Gray, Brooklyn Park, MN (US);
Nicholas R. Whitehead, Hopkins, MN (US);
Jeffrey P. Bodner, St. Paul, MN (US);
Brian C. Egan, St. Louis Park, MN (US);
James M. Haase, Maplewood, MN (US);
Ronald L. Mezera, Lake Elmo, MN (US);
John M. Gray, Brooklyn Park, MN (US);
Nicholas R. Whitehead, Hopkins, MN (US);
Jeffrey P. Bodner, St. Paul, MN (US);
Brian C. Egan, St. Louis Park, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
An accumulator is employed in an implantable infusion device to provide compliance in the flow path of the device. The accumulator may act to increase the pumping accuracy and repeatability while simultaneously reducing the energy requirements of the device. In one example, the accumulator is arranged at the outlet of a fluid delivery pump of the infusion device. The accumulator includes a cover and a diaphragm biased away from the cover and configured to deflect toward the cover under pressure generated by the therapeutic agent in a flow path of the infusion device. The cover of the accumulator is configured to withstand the pressure generated by the therapeutic agent in the flow path without deforming.