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:
Jun. 25, 2002
Filed:
Nov. 27, 2000
Applicant:
Inventors:
John N. Robinson, Gibsonia, PA (US);
Paul F. Burke, Bellingham, MA (US);
Kenneth A. Fine, Sharon, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
R01D 5/702 ; A61N 1/30 ;
U.S. Cl.
CPC ...
R01D 5/702 ; A61N 1/30 ;
Abstract
An electrodiffusion pump includes a housing having an inlet, drug reservoir, and outlet. A diffusion membrane is disposed between the reservoir and outlet for diffusing the drug outwardly therethrough. Internal and external electrodes are disposed on opposite sides of the membrane. The electrodes are porous, and the external electrode is additionally perforate to expose a portion of the membrane at the outlet. The electrodes are electrically powered for driving drug ions through the membrane under electrophoresis to complement diffusion thereof.