发明名称 |
FLASHBACK BLOOD COLLECTION NEEDLE |
摘要 |
A needle assembly includes a transparent or translucent housing with a fluid inlet end, a fluid outlet end, a flashback chamber, and a venting mechanism therebetween. Substantially axially aligned inlet and outlet cannulas extend from the housing and communicate with the chamber. A sealable sleeve covers the external end of the outlet cannula. Relative volumes of the cannulas, the chamber, and the sleeve are selected to provide rapid reliable flashback indicative of venous entry with an internal vent positioned within the housing so as to divide the interior into first and second chambers, with the second chamber being adapted to maintain a negative pressure therein relative to the external environment so as to inhibit leakage of blood from the needle on withdrawal from the patient. |
申请公布号 |
WO2009113999(A2) |
申请公布日期 |
2009.09.17 |
申请号 |
WO2008US56256 |
申请日期 |
2008.03.07 |
申请人 |
BECTON, DICKINSON AND COMPANY;TAN, CHEE LEONG ALVIN;MOH, JON;SIM, STANLEY |
发明人 |
TAN, CHEE LEONG ALVIN;MOH, JON;SIM, STANLEY |
分类号 |
A61M25/06 |
主分类号 |
A61M25/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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