RU97637U1 - GYNECOLOGICAL POST-BIRTH TIP FOR VACUUM ASPIRATION - Google Patents

Abstract

 1. Gynecological postpartum tip for vacuum aspiration, comprising a suction tube connected in series with round holes in the side wall, a restrictor with a fitting placed inside it and led to a tube for removing aspirate, while the distal working end of the suction tube is smoothly rounded in the form of a protruding outward part of a hollow spherically shaped body, the limiter is made in the form of a horizontally oriented body of complex rounded shape with PWM diameter side of the suction tube and large - from the output end fitting, characterized in that the diameter of the suction tube of circular holes is about 2-4 mm, and the length of the suction tube and the stopper are related! with dogr = 20 mm,! where Ltr is the length of the suction tube; ! Logr - length of the limiter; ! dogr is the diameter of the limiter in the part protruding as much as possible across it. ! 2. Gynecological postpartum tip for vacuum aspiration according to claim 1, characterized in that the suction tube, the tube for removing aspirate and the stopper are made with the possibility of disposable use from a flexible mold-containing material.

Description

The utility model relates to medical equipment, namely to obstetric and gynecological instruments and can be used for vacuum aspiration of the uterine cavity in case of postpartum complications: postpartum endometritis, uterine subinvolution, and the presence of residues of placental tissue.

Known suction gynecological tips [copyright certificate SU for the invention No. 1643007, patent RU for utility model No. 23376]. They are made in the form of tubes with side holes and perforation of the wall of the working end.

However, these tips are used only to terminate early pregnancy and for endometrial biopsy.

Also known as "Aspiration gynecological tip" [RU patent for invention No. 2020890]. It contains a tubular body with an axial channel, an end hole, a window in the working part. The tip has additional holes made on the working part. Outside the working part, additional holes are made coaxially with each other and diametrically opposite. A movable sleeve is installed on the tip for overlapping holes made in the inactive part.

Also known is the "Gynecological tip for vacuum aspiration of the uterine cavity" [RU patent for invention No. 2053720]. It contains an aspiration tube with aspiration holes located at a narrowed working end mutually perpendicular to each other. A restrictive ring is made on the outer surface of the tube to which an additional outer tube is rigidly attached at one end, enclosing the suction and fixed to it by the other end. In the internal channel of the suction tube there are hollow protrusions forming air ducts for communicating the working end with the atmosphere, and a flexible nozzle with a peripheral mustache connected to a flat rod and a ramrod for moving the nozzle when it is installed in a working position are removably installed.

However, all of the above analogues are designed either to terminate early pregnancy by vacuum aspiration or endometrial biopsy and cannot be effectively used to remove the contents of the uterine cavity in women in the early postpartum period for several reasons, one of which is a structural increase in the size of the uterus and her neck.

The closest analogue to the claimed utility model is the “Cervical electrode-tip” [RU patent for utility model No. 65380] and a technical solution with the participation of the author of the above utility model A. Churakov [RU patent for utility model No. 21345]. It includes a cervical tip with a length of 45-50 mm, made cylindrical with a smoothly rounded distal end. The tip has four sizes according to the diameter of the cylindrical part introduced into the cervical canal: 3 mm; 4 mm; 5 mm and 6 mm. The central channel is located along the axis of the cervical tip. Holes with a diameter of 1 mm are made on the lateral surface of the cylindrical part of the tip, communicating with the central channel. A circularly located protrusion stop is placed in the middle part of the tip. The cervical tip is connected by a tube made of a dielectric flexible material with a fitting. The latter is connected to the cervical tip inside the tube by a wire of conductive material for the implementation of vibration massage of the cervix.

The disadvantage of the closest analogue and all other analogues is the impossibility of their use in women in the postpartum period, since during childbirth it changes significantly towards an increase in the architectonics of the cervix, as indicated above. Even within a few days, architectonics does not return to its former size. In case of postpartum inflammatory complications, it is necessary to treat the uterine cavity. However, suitable modern tips and other tools for treating patients in the postpartum period have been extremely insufficiently developed, and there is no gynecological postpartum uterine tip at all.

The objective of the claimed utility model is the possibility of vacuum aspiration of the contents of the uterine cavity directly during inflammatory postpartum complications: postpartum endometritis, the presence of residues of placental tissue, subinvolution of the uterus.

The essence of the claimed utility model lies in the fact that in the gynecological postpartum tip for vacuum aspiration, which contains serially connected from the side of the working end: an aspiration tube with round holes in the side wall, a stopper with a fitting placed inside it, brought out to the tube for removing aspirate, while the working distal end of the suction tube is made smoothly rounded in the form of the protruding outward part of the hollow spherically shaped body, the limiter is made in the form of horiz an orally oriented body of complex round shape with a smaller diameter from the side of the suction tube and a large one from the output end of the nozzle, the diameter of the round holes of the suction tube is about 2-4 mm, and the lengths of the suction tube and stop are connected by the ratio:

with d _ogre. = 20 mm

where L _tr. - the length of the suction tube,

L _ogre. - length of the limiter;

d _ogre - the diameter of the limiter in the maximum protruding across it part.

In addition, a gynecological postpartum tip for vacuum aspiration with the above characteristics is claimed, in which the suction tube, the tube for removing aspirate and the stopper are made with the possibility of disposable use from a flexible mold-containing material.

The technical result consists in the possibility of removing the contents of the uterine cavity, achieved by a technically developed method of access not to the cervix, as in the closest analogue, but deeper into the uterus. This technique was carried out by lengthening the working tube with holes by a length sufficient to reach the uterus and placing the tip in it with the working end, as well as by “broadening” the stopper (d = 20 mm in comparison with d = 15 mm of the closest analogue) with dimensions that prevent the occurrence of possible complications and the "failure" of the tip in the cervix. If the length of the working tip in the closest analogue is 45-50 mm, then in the inventive tip 90-100 mm, and together with the limiter is 120 mm (see Fig.), I.e. almost twice as long.

The inventive utility model is illustrated using Fig, which shows a General view of the gynecological tip for vacuum aspiration. In FIG. positions 1-5 are indicated:

1 - suction tube;

2 - round holes;

3 - limiter;

4 - tube for removing aspirate;

5 - fitting.

The inventive gynecological postpartum tip for vacuum aspiration is a combination of parts connected in series from the working end, providing a solution to the problem: suction tube 1 90-120 mm long with round holes 2 with a diameter of 2-4 mm in the side wall, a stop 3 with inside the nozzle 5 brought to the tube to remove aspirate 4. The total number of holes in the suction tube 1 depends on their number in a row along the suction tube and the number of rows in parallel elongated along it. In the claimed case, their number is optimal - 40. The working distal end of the suction tube 1 is made smoothly rounded in the form of a protruding outward part of a hollow spherically shaped body. The limiter 3 is made in the form of a horizontally oriented body of a complex step-shaped roundish shape with a smaller diameter from the side of the suction tube 1 and a larger one from the output end of the nozzle 5. The lengths of the suction tube 1 and the limiter 3 are connected by the ratio:

with d _ogre. = 20 mm

where L _tr. - the length of the suction tube,

L _ogre. - length of the limiter;

d _ogre - the diameter of the limiter in the maximum protruding across it part.

This ratio is obtained using calculated statistically and empirically worked out data and is optimal.

The suction tube 1, the tube for removing aspirate 4, as well as the restrictor 3 can be made with the possibility of one-time use of a flexible mold-containing material.

Gynecological postpartum tip for vacuum aspiration works as follows.

A patient in the postpartum period with an inflammatory complication, for example, with postpartum endometritis, is placed on a gynecological chair. The tip is removed from the sterile packaging, attached to a vacuum source. The external genitalia and cervix, removed using a Cuzco mirror, are treated with a sterile swab moistened with a disinfectant solution. Fix the cervix to bullet forceps. Gently introduce the working end of the suction tube 1 of the tip into the uterine cavity. Its large length and small diameter make it possible. Limiter 3 with dimensions exceeding the dimensions of analogue limiters allows you to place it “without failing” in the cervix, enlarged during childbirth, which has changed its architectonics. Then, the vacuum source is turned on and the contents of the uterine cavity are aspirated through the suction openings 2.

Example.

The claimed utility model has been implemented so far in experimental samples of two standard sizes manufactured at one of the enterprises of the military-industrial complex with a high-precision level of the machine park. The product is being prepared for practical testing in medical conditions.

Claims (2)

1. Gynecological postpartum tip for vacuum aspiration, comprising a suction tube connected in series with round holes in the side wall, a restrictor with a fitting placed inside it and led to a tube for removing aspirate, while the distal working end of the suction tube is smoothly rounded in the form of a protruding outward part of a hollow spherically shaped body, the limiter is made in the form of a horizontally oriented body of complex rounded shape with PWM diameter side of the suction tube and large - from the output end fitting, characterized in that the diameter of the suction tube of circular holes is about 2-4 mm, and the length of the suction tube and the stopper are related by

with d _ogre = 20 mm, where L _Tr - the length of the suction tube; L _ogre - the length of the limiter; d _ogre - the diameter of the limiter in the maximum protruding across it part. 2. Gynecological postpartum tip for vacuum aspiration according to claim 1, characterized in that the suction tube, the tube for removing aspirate and the stopper are made with the possibility of one-time use of a flexible mold-containing material.