Disposable self-retracting safety blood taking needle

Abstract

The invention discloses a disposable self-retracting safety blood taking needle. The blood taking needle comprises a shell (1), a needle body (2), a sliding sleeve (3), a rear cover (4), an ejecting spring (5) and a retracting spring (6), wherein the sliding sleeve (3) is arranged in the shell (1), the needle body (2) with a needle (13) is arranged in the sliding sleeve (3) through the retracting spring (6), the rear cover (4) is arranged on the sliding sleeve (3) through the ejecting spring (5), and thus the whole blood taking needle is formed. The blood taking needle is simple in structure and very easy to operate; when the blood taking needle is used, only the sliding sleeve is aligned with a blood taking part and pushed lightly, the needle body automatically rotates under the mutual action of inclined planes and the action of the ejecting spring, and the needle is ejected; and after the needle is ejected primarily, the needle body cannot reenter a guide rail of the shell, and the needle is ejected secondarily, so that disposable use of the blood taking needle is ensured, a patient does not directly see the needle, a sense of fear is avoided, and the using safety is improved.

Description

technical field [0001] The invention relates to a disposable blood collection needle, in particular to a disposable self-retracting safety blood collection needle. Background technique [0002] At present, medical institutions generally use blood collection needles directly for blood collection during routine blood collection. Although this method can be used for one needle per person, cross-infection is avoided, but patients (especially children) feel fear when they see the needle directly. For another kind of blood collection, take the blood collection needle and use it with the blood collection pen, put the blood collection needle in the blood collection pen, take off the blood collection needle after firing acupuncture, put another blood collection needle on it and use it again, because the blood collection pen is repeated countless times use, it is very easy to cause cross-infection. In the above two blood collection methods, the medical staff directly contact the bloo...

AI Technical Summary

Problems solved by technology

For another kind of blood collection, take the blood collection needle and use it with the blood collection pen, put the blood collection needle in the blood collection pen, take off the blood collection needle after firing acupuncture, put another blood collection needle on it and use it again, because the blood collection pen is repeated countless times use, it is very easy to cause cross-infection

In the above two blood collection methods, the medical staff directly touch the blood collection needle, and manually install and remove the needle during blood collection. If you are not careful, it is easy to puncture, causing cross infection, and there are certain safety hazards.

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