Vascular access blood collection devices and related methods

摘要: The present disclosure is directed to a needle assembly for drawing blood. can be standalone or part of an over-the-needle medical device, such as intravenous catheter. A blood collection device attached directly indirectly the hub and/or catheter hub, through Y-site adaptor connected tubing that hub. configured access vascular system draw blood, which then passes via lumen, has tip having discontinuity opening, opening with movable stem, shaft element lumen.