Ralph E. WOLOSCHUK,Scott E. CASTANON,Warren Marc TERRY,Joseph James BAKER
申请号：
US15559745
公开号：
US20180042539A1
申请日:
2016.03.18
申请国别(地区):
US
年份:
2018
代理人:
摘要：
Blood collection devices having a retractable needle are provided. Activation of the retraction mechanism causes release of propellant from a propellant chamber, which drives a retraction assembly carrying the needle into a body of the device.
