Airtight safe injection syringe with double elastic structure

Abstract

The airtight safe injection syringe with double elastic structure includes one cylinder; one needle seat, which is inside the sleeve in the top of the cylinder and has one main body with positioning fins and relatively greater lower-end inside diameter for sealing to the inner wall of the sleeve, and one injection needle; and one push rod inside the cylinder with one sealing piston on the fixing seat, several hooked pawls in the fixing seat for hooking the ring below the main body. After being used, the sealing piston may be pierced with one built-in piercing unit to avoid re-use.

Description

technical field [0001] The present invention relates to an airtight safety injection syringe with a double-elastic structure, in particular to a safety injection syringe which can be completely airtight during injection and can pierce through the airtight piston after injection to prevent used twice. Background technique [0002] In recent years, many medical staff have been stuck with needles, resulting in an endless stream of fatal cases of hepatitis, AIDS, etc. Needle sticks and injuries from sharp objects are the most common occupational injuries for medical staff. According to the survey, 98% of the nurses will feel the potential risk, followed by physicians at 70%. The wound caused by the needle stick is not large, but it is fatal, because the used injection syringe contains the blood or body fluid of the patient, which is a contaminated device. If you get stabbed by it, you may be infected. [0003] Acupuncture incidents most commonly occur in general wards, and ot...

AI Technical Summary

Problems solved by technology

From the perspective of medical behavior, the action of putting back the needle sheath is the most likely to be injured by the injection syringe, and the used injection syringe has not been put into the collection box, which is also easy to injure the medical staff. Therefore, the injection needles developed and used today Most of them pay attention to the procedure of avoiding the cover back, so as to avoid the accident of needle tip injury and infection of medical staff during work.

The airtightness of safety injection syringes commonly used today is not good, because the airtightness of safety injection syringes is easily affected by temperature differences during transportation and use. That is, general safety injection syringes are easily affected by temperature, resulting in thermal expansion and contraction, which makes the material compression ratio of the syringes different, and reduces the airtight effect of the safety injection syringes.

[0004] Today's injection syringes are all disposable, that is, they are discarded immediately after use. However, if the used injection syringes are not carefully disposed of, criminals will reuse the used injection syringes in order to obtain improper profits. When used, the consequences will be unimaginable

[0005] Therefore, the present invention proposes an airtight safety injection syringe with a double-elastic structure in view of the above problems, which can not only improve the poor airtightness of commonly used safety injection syringes, but also can be used in safety injection syringes for injection Puncture the airtight piston after use, so that the piston will have holes to avoid disease infection caused by repeated use by unscrupulous operators, so that the above problems can be solved

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