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:
Apr. 08, 1986
Filed:
Nov. 23, 1983
Applicant:
Inventors:
Jal S Jassawalla, San Francisco, CA (US);
Herbert Chen, Kensington, CA (US);
Assignee:
Novacor Medical Corporation, Oakland, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604153 ; 604155 ; 604891 ;
Abstract
An improved implantable infusion device for delivering precisely regulated doses of fluid into the body of a patient is disclosed. The device utilizes a resilient non-compliant pump bellows that is directly coupled by a gear train to a motor. The bellows is biased toward the expanded position and this factor, combined with the mechanical inertia of the gear train, substantially eliminates the danger of an overdose of infusate being released into the patient.