A negative pressure conduction module with automatic cut-off of gravity intravenous infusion

Abstract

The invention provides a one-time gravity intravenous infusion automatic cut-off negative pressure conduction module, especially a liquid inlet pipe larger than the liquid outlet pipe, which can be connected and assembled between the bottle piercing needle and the dripping funnel through the upper infusion pipe. When the infusion is finished, the diaphragm is used to automatically cut off, and at the same time, the gravity intravenous infusion that transmits negative pressure information automatically cuts off the negative pressure conduction module. The invention has the advantages of maximum negative pressure value, no safety hazard, convenient use and simple manufacture, and can be widely used in various disposable infusion and blood transfusion devices such as disposable intravenous infusion sets and special infusion sets.

Description

technical field

[0001] The invention relates to an automatic cut-off negative pressure conduction module for gravity venous infusion, in particular to an automatic cut-off negative pressure conduction module suitable for a disposable gravity venous infusion set. Background technique

[0002] At present, the disposable intravenous infusion set commonly used in the field of intravenous infusion does not have an automatic cut-off function when the infusion is completed or when the bottle is renewed and the medicine is changed. When finished, call the doctor and nurse in advance to end the infusion, or renew the bottle and change the dressing to continue the infusion. If you are not careful, it will cause reflux and blood return, which will bring pain to the patient and even cause an accident. This takes up a lot of human resources and costs a lot of money. A lot of labor for medical staff; in order to prevent the occurrence of blood back phenomenon and enable medical staff to o...

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