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. 21, 1982
Filed:
Aug. 25, 1980
Applicant:
Inventor:
John L Vcelka, Zion, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
1282 / ;
Abstract
A flashback indicator which is integrally formed in a parenteral solution or blood set to serve as a patency check device. A length of clear plastic tubing having an enlarged portion is integrally connected in a parenteral fluid or blood set in such a manner that a patency check can be made without fear of the indicator becoming disconnected from the set during the supplementary administration of a drug such as by means of a hypodermic syringe. In a preferred manner, the flashback indicator is formed from bubble-like tubing wherein the wall thickness of the enlarged portion of the bubble is at least as large as that of the tubing in the set having a smaller and constant diameter.