Safe injector

Abstract

The invention discloses a safe injector. The safe injector comprises a syringe with a rubber plug, a push rod, a needle tube and a needle holder, wherein a retraction part is spliced on the needle holder; the needle tube is fixed at one end of the retraction part, and a conical head is arranged at the other end of the retraction part; a slot is formed between the conical head and the retraction part; a mounting groove part is arranged at one end of the syringe; a clamping part is arranged at the bottom of a solution cavity; and when the push rod moves to the bottom of the solution cavity, the clamping part is pressed by an unlocking boss, so that a clamping block is separated from the slot, and the conical head is fixed in a locking groove. The safe injector is convenient and reliable to use without changing the traditional operation habit, and the needle tube can be retracted into the solution cavity of the syringe when injection is completed, so that medical staff can be protected from accidental injury by a polluted needle tip and can be prevented from affecting diseases due to needle tip injury.

Description

technical field [0001] The invention relates to the field of medical equipment, more specifically, it relates to a safety syringe. Background technique [0002] As early as the 15th century, the Italian Catinelle proposed the principle of the syringe. But it was not until 1657 that the Englishmen Boyle and Wren conducted the first human experiments. Abel, a surgeon in the army of King Louis XVI of France (reigned 1774-1792), also conceived of a plunger syringe. But it is generally believed that Pravoz of France is the inventor of the syringe. The syringe he supervised in 1853 was made of silver, had a capacity of only 1 ml, and had a threaded plunger rod. [0003] The British Ferguson was the first to use glass syringes, in which the glass has good transparency and the injection of drugs can be seen. Since then, there have been syringes made of glass tubes and metals, which can be sterilized by boiling, and needles can also be sharpened for reuse and disinfection. The s...

AI Technical Summary

Problems solved by technology

[0004] Due to the phenomenon of repeated use of disposable sterile syringes at present, the cross-infection of germs is increased, which brings potential harm to users. At the same time, it is not uncommon for clinical users to be stabbed by the exposed needle tip after the injection of the syringe.

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