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:
Jun. 07, 1994
Filed:
Feb. 05, 1992
Jean-Claude Riquier, Rilleux, FR;
Jacques Chevallet, Serezin du Rhone, FR;
Hospal Industrie, , FR;
Abstract
A single needle extracorporeal blood circuit for connection to a blood treatment device includes an arterial portion having an arterial reservoir, an end for connection to the needle, an end for connection to the blood treatment device, and a first valve for flow communicating the needle with the arterial reservoir. The blood circuit also includes a venous portion having a venous reservoir, an end for connection to the blood treatment device, an end for connection to the needle, and a second valve for flow communicating the needle with the venous reservoir. Detectors monitor quantities of liquid in the arterial and venous reservoirs so that the first valve is opened in response to the presence of a first predetermined quantity of liquid in the arterial reservoir or a second predetermined quantity of liquid in the venous reservoir. Similarly, the second valve is opened in response to the presence of either a third predetermined quantity of liquid in the arterial reservoir or a fourth predetermined quantity of liquid in the venous reservoir.