Problem Statement: Cervical insufficiency is one of the most common causes of preterm labor.Methods: A new exclusive innovation model of obstetrical pessary is made of high quality silicone of determinated flexibility and density providing the optimal application of the pessary. The outstanding feature of the ring is four symmetrical semicircular slots on the external surface , four bulges on the internal surface of the ring and exclusive four vertical silicon "lobes" at the lower surface of pessaries not allowing to shift or turn to a wrong position .Absolutely new and significant advantage of the new model is its antimicrobial coating (miramistin, chlorhexidine, silver), preventing development of bacterial vaginosis.Results: Research of new model of obstetrical pessary was conducted on a group of pregnant women (380 patients) with cervical insufficiency or history of habitual abortion and pregnancy of 14 to 37 weeks of gestation . All pregnancies were followed to term.The advantages of the new model of the obstetrical pessary are as follows:1. Adjunctive fixation of the pessary in the vagina due to the external slots (so the pessary would not move or drop out).2. Reduced risk of lacerations and ulcers of the vaginal mucosa due to minimal pessary contact with the vaginal wall.3. Increase in outflow of the vaginal discharge. 4. Prevention of infections vaginitis due to antimicrobial coating of the pessary.5. Presence of four bulges on the internal surface of the ring preventing cervical dilatation in case of cervical insufficiency during pregnancy.6. Elimination of symptoms of stress urinary incontinence.17.Presence of four vertical silicon "lobes" at the lower surface of pessaries not allowing to shift or turn to a wrong positionConclusion: Application of the new exclusive innavation model of obstetrical pessary considerably increases the chances of successful development of pregnancy in women with cervical insufficiency and habitual abortion.
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