RU207256U1 - Obstetric Sacralizing Pessary Modified - Google Patents

Abstract

The useful model relates to the field of medicine, namely to obstetric pessaries for the correction of isthmic-cervical insufficiency, and can be used in patients with isthmic-cervical insufficiency in obstetrics and gynecology. The pessary is made of an elastic, moderately elastic, inert material and has a less pliable, elastic U-shaped front part with two comb-shaped, oval protrusions, a central part in the form of a symmetrical hollow ring and more elastic in comparison with the front part, a back part with four evenly located comb-shaped oval protrusions directed downward and serve to fix the pessary after its placement. The use of this useful model allows to reduce the frequency of miscarriage in patients with isthmic-cervical insufficiency without suture on the cervix. There is no significant pressure on the rectum.

Description

The useful model relates to the field of medicine, namely to obstetric pessaries, and can be used in patients with isthmic-cervical insufficiency in obstetrics and gynecology.

Known obstetric unloading pessary (Republic of Belarus), intended for the correction of isthmic-cervical insufficiency ("Pessary obstetric unloading", patent No. 2661 of the Republic of Belarus, 1998).

Disadvantage: the pessary is made of a dense, unyielding material, which leads to significant technical difficulties during its installation.

Known obstetric pessary Dr. Arabin (Germany) (XVIII All-Russian Scientific Forum "Mother and Child." Sakverilidze N. Yu. The use of obstetric pessaries - methods for diagnosing isthmic-cervical insufficiency. S. 50-52). This pessary is a device for mechanical support of the cervix, which reduces the pressure of the fetal head on the lower segment of the uterus and prevents the uterine pharynx from opening.

Disadvantage: increased flexibility, round shape leads to a lack of long-term stability after setting the pessary; a small number of holes and their small diameter, in this pessary, lead to a violation of the circulation of vaginal mucus and the appearance of colpitis against this background.

Known obstetric pessary (Russia) (Patent No. 143777 publ. 27.07.2014). This pessary is made in the form of a ring of silicone, characterized in that it contains at least two notches from the edges of the ring and at least two bulges on the inner side of the central hole of the ring (XV All-Russian Scientific Forum Mother and Child. Shneiderman M.G. New Russian models of obstetric pessaries. S. 221-222.).

Disadvantages: a pessary made in the form of a ring cannot perform the function of sacralization (deviation to the sacrum) of the cervix; easily slides down.

Known obstetric sacralizing pessary (patent No. 156505, 04/29/2015), which is designed to correct isthmic-cervical insufficiency. The pessary is made of elastic elastic inert material, contains a front U-shaped part with two comb-shaped oval protrusions directed downward, a central part in the form of a symmetrical hollow ring and an oval rear part made more elastic in comparison with the front part and equipped with a comb-shaped protrusion directed downward ... The positive effect of this pessary is to sacralize the cervix and reduce the pressure of the presenting part of the fetus on the internal pharynx. This pessary is taken by the author as a prototype.

The disadvantage of the prototype: the posterior ridge-like protrusion exerts a sufficiently strong pressure on the rectum, which in some cases can cause a disorder of the act of defecation.

The technical result of the utility model consists in sacralization of the cervix with a decrease in the pressure of the presenting part of the fetus on the internal pharynx with insignificant pressure on the rectum.

The specified technical result is achieved in an obstetric sacralizing pessary for the correction of isthmic-cervical insufficiency, made of an elastic, moderately elastic, inert material, containing an anterior U-shaped part with two comb-shaped oval protrusions directed downward, a central part in the form of a symmetrical hollow ring and an oval posterior a part made more elastic in comparison with the front part and provided with projections directed downward, in which the rear part of the pessary contains four evenly spaced ridge-shaped oval projections directed downward and serves to fix the pessary after its placement.

The proposed design allows you to insert the pessary quite comfortably, without unnecessary mental and physical stress on the patient. After placement, the denser front part of the pessary deflects the cervix towards the sacrum, sacralizing the cervix. Two ridge-shaped, oval protrusions on the front part and four of the same on the back part of the pessary prevent the pessary from shifting downward, allowing a locking function on the cervix, and prevent the pressure of the presenting part on the internal pharynx.

The presence of evenly spaced four ridges on the back of the pessary helps to prevent pressure on the rectum, which prevents stool disorder in patients.

The oval shapes of the protrusions, as well as the presence of gaps between them, prevent the disturbance of the circulation of the vaginal microflora, thereby preventing the development of colpitis.

The utility model is illustrated in Figs 1, 2, 3 where:

FIG. 1 is a side view of the inventive pessary;

FIG. 2 is a top view of the inventive pessary;

FIG. 3 is a bottom view of the inventive pessary.

An obstetric sacralizing pessary is a product made of an elastic, moderately elastic, inert material and has a front U-shaped part 1, which is less pliable in comparison with the rear part. In the front part 1 of the pessary there are two ridge-like, oval projections 2 directed downwards, more elastic than similar projections in the back part. The central part of the pessary is made in the form of a symmetrical, elastic, hollow ring 3. The back part 4 of the pessary is oval, more elastic in comparison with the front part 1, with four ridge-like, oval projections 5 directed downward, like the projections in the front part 1, for fixing the pessary after placement.

The device works as follows: the pessary is bent with two fingers laterally in the area of the ring 3, which allows it to be easily inserted into the vagina and installed to the cervix. Moreover, the cervix is located inside the ring 3. The anterior part of the 1 pessary is directed to the pubic articulation, and the posterior part to the sacrum. The denser and less pliable anterior part 1 of the pessary, in comparison with the posterior part 4, with ridge-shaped, oval protrusions 5, more elastic than on the posterior part of the pessary, slightly deflects the cervix towards the sacrum, performing sacralization, and thereby reduce the degree of pressure of the present parts on the area of the internal pharynx. The central ring 3, performing a locking function, also reduces the pressure of the presenting part on the internal pharynx. Oval projections 2, 5 on the front and back of the pessary, respectively, allow you to fix the pessary in the desired position. The presence of four protrusions 5 on the back 4 of the pessary provides a significant reduction in pressure on the rectum. The presence of gaps between the oval protrusions prevents the disturbance of the circulation of the vaginal microflora with the subsequent development of colpitis.

The use of the utility model provides sacralization of the cervix with a decrease in the pressure of the presenting part of the fetus on the internal pharynx with insignificant pressure on the rectum, allows to reduce the frequency of miscarriage in patients with isthmic-cervical insufficiency without suture on the cervix.

Claims (1)

Obstetric sacralizing pessary for the correction of isthmic-cervical insufficiency, made of elastic elastic inert material, containing an anterior U-shaped part with two comb-shaped oval protrusions directed downward, a central part in the form of a symmetrical hollow ring and an oval posterior part, made more elastic in comparison with with the front part and provided with projections directed downward, characterized in that the rear part of the pessary contains four evenly spaced comb-shaped oval projections directed downward and serving to fix the pessary after its placement.

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