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:
Mar. 31, 1981
Filed:
Sep. 17, 1979
Elton M Tucker, Medfield, MA (US);
Frank R Prosl, Duxbury, MA (US);
Metal Bellows Corporation, Sharon, MA (US);
Abstract
An infusion apparatus and method employs an infusate reservoir connected by way of a first flow path having a first flow restrictor to a mixing chamber. The reservoir is also connected by a second flow path having a second flow restrictor to the same mixing chamber so that infusate may be conveyed to the chamber at different rates. A normally closed valve is provided in the second flow path so that infusate flows from the two paths supplement one another in the mixing chamber only when the valve is open. The reservoir and chamber volumes, infusate concentration and chamber outlet flow rate are selected to provide an integrated dosage profile suited to the patient.