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:
Nov. 13, 2001
Filed:
Sep. 13, 1999
Applicant:
Inventors:
Twan Peer, Landgraaf, NL;
Arnoldus Bakels, Simpleveld, NL;
Assignee:
Medtronic, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/32 ;
U.S. Cl.
CPC ...
A61K 9/32 ;
Abstract
An implantable pump apparatus and method of operating the implantable pump for infusing a fluid into a body are described. The implantable pump apparatus includes a support member. A pressure sensitive resistor member is disposed on a first side of the support member. A spring member includes a first end which is adjacent to the pressure sensitive resistor member. An expandable fluid reservoir member includes a first end which is adjacent to a second end of the spring member. The level of fluid within the expandable fluid reservoir member is determined by measuring a force applied to the pressure sensitive resistor member.