Venous blood collection needle with cut-off protectors

Abstract

The invention discloses a venous blood collection needle with cut-off protectors, and belongs to a medical appliance. The venous blood collection needle comprises a vein piercing needle head, a negative pressure blood collection needle head and a hose tube, wherein the cut-off protectors are sleeved at the two ends of the hose tube; each cut-off protector comprises a knife rest with a central hole at the tail part; the front end of an upper sheet of the knife rest is bent downwards to form an upper blade; a semi-round edge is arranged on the lower side of the middle of the upper blade; the front end of a lower sheet of the knife rest is bent upwards to form a lower blade; a semi-round edge is arranged on the upper side of the middle of the lower blade; the semi-round edges of the upper blade and the lower blade form a round hole when in a free state, and the diameter of the round hole is greater than that of the hose tube; the hose tube is sleeved in the central hole and the round hole; the upper blade is positioned on the outer side of the lower blade; and the upper blade and the lower blade are in tight fit with each other for cutting. The venous blood collection needle can be cut after being used so as to separate the needle heads from the hose tube, is small in occupied space and is easily thrown in a relatively small and narrow wastecan, so that the probability of a puncture wound of a medical staff caused by the needle heads is greatly reduced and the environmental pollution is reduced. Therefore, the venous blood collection needle can be widely applied to clinical venous blood collection, and the structure of the venous blood collection needle can be also applied to a scalp needle.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and more specifically relates to a design innovation of a venous blood collection needle with a cut-off protector. Background technique [0002] At present, venous blood collection technology is widely used in clinical laboratory. Most of the existing venous blood collection needles are disposable and discarded after use, and their safety in use has been greatly improved. However, after blood collection, the medical staff need to throw the discarded blood collection needles into the narrow dirt tank, and the two ends of the venous blood collection needles are connected by a flexible tube in the middle of the needle, and the shape is not fixed. The location is easy to change and takes up a lot of space. Therefore, if you are not careful, medical staff are often stabbed by needles and lead to infection. [0003] In addition, the discarded venous blood collection needle is often difficu...

AI Technical Summary

Problems solved by technology

However, after blood collection, the medical staff need to throw the discarded blood collection needles into the narrow dirt tank, and the two ends of the venous blood collection needles are connected by a flexible tube in the middle of the needle, and the shape is not fixed. The location is easy to change and takes up a lot of space

Therefore, if you are not careful, medical staff are often injured by needles and lead to infection

[0003] In addition, because of the long and soft middle of the discarded venous blood collection needles after use, it is often difficult to completely enter the dirt tank, and it is easy to cause pollution to the medical environment.

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