A method of making a liquid injection device with a water bladder for midwifery

1. The utility model relates to the field of obstetrics, in particular to a liquid injection device with a water bladder for midwifery.

Background technique:

2. Induction of labor with a water sac is to place a water sac between the uterine wall and the fetal membrane, adding an appropriate amount of normal saline, which can increase the pressure in the uterine cavity and cause the decidua of the lower uterine segment to peel off. The water sac can also mechanically Compression of the cervical canal can stimulate the release of prostaglandins in the body, so that the cervical canal expands and shortens, and changes in the cervix can reflexively release endogenous oxytocin in the body to induce and trigger uterine contractions, causing regular uterine contractions , to achieve the purpose of induction of labor.

3. Most of the existing water bladder liquid injection devices are injected through a syringe, and the injection process needs to be pushed by medical personnel on site, which is not convenient to use, wastes the working time of medical personnel, and is time-consuming and labor-intensive to use.

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