Secure type indwelling and shielding cap

Abstract

The embodiment of the invention discloses a secure type indwelling needle and a shielding cap and is used for prevent a medical personnel from being punctured by a puncture needle. The secure type indwelling needle provided by the embodiment comprises an indwelling catheter component 1, a puncture needle component 2 and a shielding cap 3; after the puncture needle component 2 is pulled out, the puncture needle component 2 is accommodated inside the shielding cap 3; and when the puncture needle component 2 exits from a front end limitation device 31, the front end limitation device 31 deviates from an original position and slides towards a lower part under the action of gravity so as to stop an extending channel 33 and prevent a puncture needle 21 from reversely passing. A back end limitation position 32 can prevent the puncture needle component 2 from leaving the shielding cap 3; thus, the puncture needle component 2 and the indwelling catheter component 1 are separated, and the puncture needle component 2 is safely discarded, so that the medical personnel is prevented from being punctured by a puncture needle; because the volume of the shielding cap 3 is smaller than that of a complete protection housing in the prior art, the secure type indwelling needle is more conveniently used by the medical personnel.

Description

technical field [0001] The invention relates to the field of disposable medical devices, in particular to a safety indwelling needle and a shielding cap. Background technique [0002] The indwelling needle is a medical device used for infusion therapy multiple times within a certain period of time, and generally includes a puncture needle and an indwelling catheter covered on the puncture needle. Because the indwelling catheter is soft and elastic, when the catheter is indwelling in the blood vessel, the catheter will bend synchronously with the blood vessel, so that the indwelling part of the catheter can still move freely without the risk of puncturing the vein. Therefore, compared with ordinary scalp needles, using indwelling needles for infusion is safer and reduces discomfort for patients during infusion. [0003] The use of indwelling needles also brings the risk of accidental stabbing of medical staff by the exposed needle tip after puncture of indwelling needles. In...

AI Technical Summary

Problems solved by technology

[0004] However, the safety indwelling needles in the prior art have more or less disadvantages, thus limiting their performance, and cannot be fully recognized by medical personnel.

For example, the Chinese invention patent with the application number 03814386.0 discloses a needle tip shielding device for indwelling needle puncture, which can only shield the needle tip, but not the side hole on the needle tube to guide blood, and the whole device is relatively complicated

In a safety-type indwelling needle disclosed in the Chinese invention patent with application number 03141566.0, the puncture needle assembly after puncture is stored in a tubular safety protection case, and the safety protection case is covered on the catheter base, and the length of the protection case is Larger, which brings inconvenience to the operation of medical staff

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