ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,433, issued on Oct. 7, was assigned to Fresenius Medical Care Deutschland GmbH (Bad Homburg, Germany).

"Medical pump drive, pump and medical treatment apparatus" was invented by Alexander Heide (Eppstein, Germany), Arne Peters (Bad Homburg, Germany), Dejan Nikolic (Bad Soden, Germany) and Juergen Klewinghaus (Oberursel, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a medical pump drive comprising a pump housing and a pump motor provided in the pump housing. The pump drive also includes a rechargeable voltage source for storing electrical energy, or a rechargeable battery, for a voltage supply of the pump mot...