POROUS MULTIPLE SAMPLE SLEEVE AND BLOOD DRAWING DEVICE FOR FLASH DETECTION

摘要

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of sample vial guide tube, or an I.V. infusion set of various lengths ("butterfly needle") and or any luer-type fitting attached to an existing device. The outer wall of the central body of the flexible sleeve may be transparent or translucent to permit the detection of fluid within the inner passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage.