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:
Sep. 27, 1983
Filed:
Jun. 01, 1981
Brack G Hattler, Denver, CO (US);
Ronnie D Richards, Arvada, CO (US);
William J Horgan, Littleton, CO (US);
Other;
Abstract
A venous catheter having a central flexible lumen with a formed fluid passageway therein and a plurality of collapsible lumens mounted around the periphery of the central flexible lumen also having formed fluid passageways therein. The central flexible lumen being formed of material which is capable of retaining its shape with or without fluid flowing therethrough. Each collapsible lumen being formed from material which is normally collapsed in a small cross-sectional area and which is further capable of expanding when fluid is flowing therein to a cross-sectional area much greater than that when collapsed. The catheter being capable of being inserted through the center of an insertion needle in the collapsed state into the vein of a patient.