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:
Apr. 23, 2024
Filed:
Dec. 28, 2020
Medtronic, Inc., Minneapolis, MN (US);
Erik J. Peterson, Fridley, MN (US);
Jerel K. Mueller, St. Paul, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
An implantable medical device (IMD) including a housing defining a propellant chamber, a drug reservoir located within the propellant chamber of the housing configured to receive a therapeutic fluid, a propellant gas within the propellant chamber; and a volume measurement system that includes a temperature sensor configured to measure a temperature of the propellant gas within in the propellant chamber and a pressure sensor configured to measure a pressure of the propellant gas within the propellant chamber. The volume measurement system is configured to measure the pressure and the temperature of the propellant gas to provide current volume information of the therapeutic fluid in the drug reservoir.