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:
Dec. 30, 2008
Filed:
Sep. 16, 2003
Roger Massengale, Mission Viejo, CA (US);
Kevin M. Forrest, Rancho Santa Margarita, CA (US);
Bill Porter, Carlsbad, CA (US);
Donald M. Earhart, Irvine, CA (US);
Alan Dine, Pleasant Plain, OH (US);
Roger Massengale, Mission Viejo, CA (US);
Kevin M. Forrest, Rancho Santa Margarita, CA (US);
Bill Porter, Carlsbad, CA (US);
Donald M. Earhart, Irvine, CA (US);
Alan Dine, Pleasant Plain, OH (US);
I-Flow Corporation, Lake Forest, CA (US);
Abstract
A fluid delivery device is provided for transdermal delivery of fluid medications to patients. The device comprises a thin envelope which is applied to a patient's skin. The envelope comprises at least one diffusion layer coupled to at least one impermeable layer such that at least one chamber exists therebetween. Other embodiments include internal diffusion layers, and thus possess additional chambers, as well. The impermeable layer comprises a top surface of the device. A valve positioned in the impermeable layer facilitates filling the device with fluid, as well as connection of the device to external fluid sources such as an intravenous bag, pump, or other external fluid delivery system. The diffusion layer may comprise a semi-permeable membrane which controls the rate of fluid flow from the device to the patient's skin.