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:
Sep. 09, 2025
Filed:
May. 05, 2021
University of Maryland, Baltimore, Baltimore, MD (US);
University of Maryland, College Park, College Park, MD (US);
Joseph Friedberg, Baltimore, MD (US);
Hosam Fathy, Kensington, MD (US);
Jin-Oh Hahn, Potomac, MD (US);
Mahsa Doosthosseini, Laurel, MD (US);
Majid Aroom, Preston, MD (US);
Kevin Aroom, Silver Spring, MD (US);
UNIVERSITY OF MARYLAND, BALTIMORE, Baltimore, MD (US);
UNIVERSITY OF MARYLAND, COLLEGE PARK, College Park, MD (US);
Abstract
Systems and methods for gas exchange in a patient are provided that use an external circuit to cause oxygenation perfusion in a body cavity (such as an abdomen) of the patient using an inert chemical (e.g., perfluorocarbon), independent of lungs. The external circuit includes components configured to control properties of the chemical, including temperature, flow rate, pressure, oxygenation percentage, and carbon dioxide percentage. The systems also include safety features to reduce a likelihood of injury to the patient. Each of the safety features and the properties of the chemical can be controlled by a healthcare worker, such as a physician, a nurse, or an emergency operator, for a particular patient.