When in use, it is placed on the top of vagina to cover the cervix, so that the sperm in vagina cannot enter the uterine cavity, thus achieving the purpose of contraception. There are seven types of vaginal septum. Each type of vaginal diaphragm is made of latex film, and the surrounding rubber film is embedded with spring rings, so it is both soft and elastic. According to the outer diameter (mm) of the coil, it is divided into So, 55, 60, 65, 70, 75 and 80 models.
The most commonly used sizes for women of childbearing age in China are 65 and 70.65. Vaginal septum contraception must be examined by gynecologists before placement. After no contraindications, measure the distance from the posterior fornix of vagina to the lower edge of pubic symphysis with fingers, and then measure its length with a ruler to select the corresponding type of vaginal septum. If the model is too small, the cervical lid is not tight, the diaphragm is easy to shift, and sperm can easily pass through into the uterine cavity, leading to contraceptive failure; If the model is too large, it will squeeze the vaginal wall and cause vaginal wall damage.
Therefore, it is very important to choose the type of vaginal diaphragm. The most suitable size of the vaginal septum is that the posterior edge of the septum reaches the posterior fornix, the anterior edge reaches the posterior upper edge of the pubic symphysis, and the other edges are close to the vaginal sidewall, and the vaginal septum just covers the cervix. Before using the vaginal septum, urinate and wash your hands, and carefully check whether the septum is damaged or perforated. If not, squeeze contraceptive ointment on the concave-convex surface and edge of diaphragm and apply ointment evenly. The posture of placing vaginal septum is sitting, squatting, standing and bending or semi-horizontal. When placed, the legs (3) are slightly separated from the labia majora with one hand, and the thumb and middle finger of the other hand pinch the vaginal septum into an oval shape, with the convex surface pointing to the cervix, feed it upward along the posterior wall of the vagina until it reaches the top of the vault, and then move forward, so that the front end of the vaginal septum reaches the upper edge of the pubic symphysis, covering all the cervix and cervix.
After putting it away, check it again with your index finger. If it doesn't fit, put it back. As long as the model is properly selected and placed after the doctor's measurement, the vaginal septum will not affect normal activities, and even urine and urine will not be affected at all. Generally, the vaginal septum is taken out 8 ~ 12 hours after sexual intercourse. Sperm live in vagina for 8 ~ 12 hours. If taken out too early, some sperm still have the ability to move in the vagina, which may lead to pregnancy in the cervix and uterus, and contraception may fail.
Placement time should not be too long, not more than 24 hours, so as not to stimulate the vaginal wall and cause discomfort or infection due to excessive secretion. The vaginal septum is removed when it is put in. Put your finger into the vagina, hook the front edge of the vaginal septum, and slowly pull it up and out. The vaginal septum should be washed with soapy water and checked for leakage or rupture.
If there is no damage, it should be wiped clean, coated with talcum powder, wrapped and stored for later use. As long as it is used well, 1 vaginal diaphragm can be used for contraception for about 2 years.