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:
Feb. 16, 2016
Filed:
Nov. 25, 2009
Applicant:
Steven R. Christenson, Coon Rapids, MN (US);
Inventor:
Steven R. Christenson, Coon Rapids, MN (US);
Assignee:
Medtronic, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 5/142 (2006.01); A61M 5/14 (2006.01); A61M 5/168 (2006.01); A61M 39/24 (2006.01); A61M 39/02 (2006.01);
U.S. Cl.
CPC ...
A61M 5/14276 (2013.01); A61M 5/16813 (2013.01); A61M 5/141 (2013.01); A61M 2039/0244 (2013.01); A61M 2039/242 (2013.01);
Abstract
An implantable infusion device includes a positive pressure reservoir, a pump, a flow restrictor, and an outlet. The device includes a first fluid flow path from the reservoir to the outlet, where the pump is downstream of the reservoir, and the outlet is downstream of the pump. The device further includes a second fluid flow path from the reservoir to the outlet, where the flow restrictor is downstream of the reservoir, and the outlet is downstream of the restrictor. The device may also include one or more controllable, MRI-safe valves to select whether fluid is delivered via the first or second flow path.