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Blood collection tube holders that are designed to hold vacuum blood collection tubes during blood collection and incorporate a sheath that advances over the needle or covers a retracted needle. These devices may come equipped with a protective blood collection needle, or have the capacity to attach to a protective blood collection needle. Most operate by some spring action that is activated when a needle is withdrawn from the patient or the blood collection tube is capped by the user after the last tube is removed from the holder. Protective blood collection tube holders are used to prevent accidental needlesticks during blood collection procedures.
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