Blood sampling device
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United States of America Patent
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N/A
Issued Date -
Jan 10, 2008
app pub date -
Jul 10, 2006
filing date -
Jul 10, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A blood sampling device has a barrel, an inner tube, a base and a spring. The barrel has a front end, a rear end, a pipe and a cap. The pipe is formed on the front end. The cap is formed on the rear end. The inner tube is mounted in the barrel. The base is mounted in the inner tube to mount a needle hub and has multiple flexible tabs. The flexible tabs extend from the base and abut with the inner tube. The spring is mounted around the base. After pushing the cap into the rear end, the inner tube is moved toward the front end to squeeze the flexible tabs and the spring. Then, the base is retracted into inner tube automatically with the resilient force provided by the spring. Therefore, a user can be protected from being pricked by a used outer needle.
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