Positive pressure needleless connecting piece

Abstract

The invention relates to the technical field of medical supplies, and discloses a positive pressure needleless connecting piece. The positive pressure needleless connecting piece comprises a first shell, a pole plate shell is fixedly connected into the first shell, a positive pole plate is fixedly connected into the pole plate shell, a negative pole plate is fixedly connected into the pole plate shell, a dielectric plate is movably connected into the pole plate shell, a pressing block is fixedly connected to the exterior of the dielectric plate, an electromagnet is fixedly connected to the interior of the first shell, and a fixing spring is fixedly connected to the exterior of the electromagnet. Under the interaction of a first rotating rod, a rotating shell, a fluid shell, an electro-rheological body, a rotating shaft, a movable block, a transmission shell, a convex block, a clockwork spring and a baffle, when a connector of an injector is pulled out, the blood can be effectively prevented from flowing back into the connecting piece, thus blood coagulation can be avoided, and meanwhile, the event that the connecting piece is blocked by blood can be effectively avoided, so that unnecessary pain brought to a patient can be avoided.

Description

technical field [0001] The invention relates to the technical field of medical supplies, in particular to a positive pressure needleless connector. Background technique [0002] The positive pressure connector is a needle-free and airtight infusion connector. With the continuous development of medical equipment and the continuous improvement of nursing quality, people pay more and more attention to the safety of infusion. Positive pressure can be generated instantly, and it is widely used due to its advantages of simple operation and avoidance of needle stick injury. However, there are still many problems in the use of existing positive pressure connectors. The connector cannot effectively reduce the occurrence of blood return and blockage events, so that when the connector of the syringe is pulled out, the blood will flow back into the connector, so that the blood that does not flow will coagulate, and the coagulated blood may be blocked Connectors, and this will also affe...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a positive pressure needle-free connector, which has the advantages of being able to effectively reduce the occurrence of blood return blockage events and having an anti-slip function, and solves the problem that the existing positive pressure connector cannot be effectively Reduce the occurrence of blood return and blockage events, so that when the connector of the syringe is pulled out, the blood will flow back into the connecting piece, so that the blood that does not flow will coagulate, so the coagulated blood may block the connecting piece, and at the same time This will also affect the next use of the connector, which will cause unnecessary pain to the patient, and the existing positive pressure connector does not have an anti-slip function, so when the needle is inserted into the connector, it may Due to the sliding action of the needle, the damage of the connecting part and the residue of the injected drug will affect the accuracy of the dosage of the drug, which will make the treatment effect of the patient poor.

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