Combination cap for infusion

Abstract

The invention discloses a combination cap for infusion, which comprises a mother cap and a rubber plug placed in the mother cap. The inner side wall of the mother cap extends inwardly with a circle of pressure edges pressing upward against the rubber plug. There is a ring-shaped gland for pressing, and the gland is clamped and fixed with the mother cover; when the invention is assembled, the rubber plug is pressed down into the mother cover through the gland, which changes the traditional assembly method from bottom to top, making the assembly easier It is simple, and the gland is more material-saving than the traditional sub-cap.

Description

technical field [0001] The invention relates to a combination cap for transfusion. Background technique [0002] At present, ordinary infusion plastic bottles are no more than soft bags and plastic bottles. The bottle caps are generally composed of plastic female caps, rubber caps and plastic sub-caps. When assembling, first put the rubber plug into the plastic female cap. Inside the cover, press the plastic sub-cover into the plastic female cover from bottom to top. The inner lower edge of the plastic female cover is provided with a circle of grooves, and the outer lower edge of the plastic sub-cover is provided with a ring of flanges, and the flanges are embedded in the grooves. In the groove, the plastic sub-cap can be fixed in the plastic mother cap, and the rubber plug is pressed tightly. After the sub-mother cap and the rubber plug are assembled, they are cleaned. The mouth of the bottle is fused, and the packaging of the soft bag or plastic bottle can be completed by...

AI Technical Summary

Problems solved by technology

[0003]1. If the existing rubber stopper is in contact with the liquid medicine for a long time, it will pollute the liquid medicine. Therefore, in order to avoid the contact between the rubber plug and the liquid medicine, the existing plastic sub-cover The upper part is equipped with a plastic cover, but when the oblique needle penetrates, it is easy to produce plastic debris and bring it into the infusion bottle, which will have an adverse effect on the patient, because the needle needs to pierce the plastic cover after penetrating the colloid, resulting in resistance in the needle When the size increases and the colloid is bound by the plastic cover, the instantaneous puncture force becomes larger, which increases the shavings, the relative shavings increase, the colloid is damaged, and the glue-deficient part virtually forms a liquid drop.

[0004]2. The existing plastic female cap is made of modified polypropylene material. , the airtightness is poor, and there will be leakage of the liquid medicine

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