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:
Oct. 22, 2002
Filed:
Oct. 07, 1999
Mitchell S. Albert, Boston, MA (US);
Arvind K. Venkatesh, Boston, MA (US);
Charles F. Ward, III, Ardmore, PA (US);
The Brigham and Women's Hospital, Inc., Boston, MA (US);
Abstract
The present invention uses a ventilator and a series of valves to deliver a special gas into a patient. The present invention finds use in the field of MRI imaging. Attached to the tube extending from the ventilator to the patient is attached a first valve. This valve alternately connects the patient to the ventilator then to a supply of the special gas. Between the first valve and the supply of gas is a second valve, which controls the pressure between the first valve and the second valve caused by the special gas. The supply of special gas is connected to the second valve. A flow regulator controls the rate at which the special gas enters the patient. A computer is also attached to the ventilator and valves to synchronize the opening and closing of the valves and the operation of the ventilator with the patient's respiratory cycles.