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Ensemble d'aiguille avec protection passive activée instantanément
专利权人:
BECTON DICKINSON AND COMPANY
发明人:
申请号:
EP09157927.6
公开号:
EP2119464B1
申请日:
2009.04.15
申请国别(地区):
EP
年份:
2015
代理人:
摘要:
A safety needle device (6) includes a housing including a passageway with a needle cannula (7) extending therefrom. A shielding member (15) is movable between a first position in which a puncture tip of the needle cannula is exposed therefrom and a second position in which the puncture tip of the needle cannula is encompassed therein. The shielding member is maintained in the first position against a biasing force (9) which biases the shielding member toward the second position. A fluid and/or temperature activation material (57), such as a hydrogel or a compressed sponge, is associated with the shielding member and is adapted to deform upon contact with a fluid medium and/or a certain temperature or temperature range. Fluid flowing through the needle cannula, such as blood flow during a blood collection procedure, causes the activation material to deform, such as through expansion, thereby releasing the shielding member from the first position and allowing the drive member to bias the shielding member toward the second position.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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