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:
Jan. 11, 2011
Filed:
May. 12, 2006
William E. Frey, Kindston, MA (US);
William E. Frey, Kindston, MA (US);
Smiths Medical ASD, Inc., Rockland, MA (US);
Abstract
A disposable warmer cartridge is used to heat fluids to be infused to the patient to prevent hypothermia in the patient. The cartridge has in its chamber a pair of spaced in parallel electrodes that have substantially the same dimension. When RF power is fed to the electrodes, an alternating electric field is generated between the electrodes to directly heat the fluid that is in the chamber. The heating of the fluid is achieved in a substantially instantaneous manner by controlling the energization of the electrodes through the distributed impedance of the electric field between the electrodes. Heat is readily controlled by modulating the RF power fed to the electrodes. Feedback to control the temperature of the fluid in the cartridge may be provided by non-contact and direct contact sensor(s).