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:
Aug. 08, 1978
Filed:
Apr. 28, 1977
Robert A Virag, Lake Zurich, IL (US);
Baxter Travenol Laboratories, Inc., Deerfield, IL (US);
Abstract
A parenteral liquid infusion set comprising flow tubing as an intermediate site for the potential access of air suitable for connection with another set or the like, and a drip chamber upstream thereof having a constricted drop-forming member. To avoid the possibility of suction of air through the air access site, a tubing section of constricted bore is provided downstream from the potential air access site and so proportioned as to cause the pressure drop of the portion of the set upstream from the potential air access site to be always less than the pressure drop of the portion of the set downstream from the potential air access site under conditions of normal use and specifically under a precise set of test conditions.