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:
Aug. 04, 2026
Filed:
May. 15, 2023
Medtronic Cryocath Lp, Toronto, CA;
Rachid Mahrouche, Cote St-Luc, CA;
Gilles Desrochers, Beaconsfield, CA;
Wing-Choi MA, Maple Grove, MN (US);
Julia A. Schraut, Shoreview, MN (US);
Bertin Simeon, Laval, CA;
Scott A. Hareland, Lino Lakes, MN (US);
Medtronic CryoCath LP, Toronto, CA;
Abstract
A method and system for controlling flow of refrigerant through a medical device are disclosed. According to one aspect, a system for delivering refrigerant to an expansion cavity portion of the medical device comprises a first path and a second path in communication with the expansion cavity portion. The system also includes a first PID controller in communication with a first proportional valve in the first path, the first PID controller being configured to operate the first proportional valve based on a pressure measurement in the first path; and a second PID controller in communication with a second proportional valve in the second path, the second controller being configured to operate the second proportional valve based on a pressure measurement in the second path or in the expansion cavity portion.