RU164920U1 - DEVICE FOR TREATMENT OF PNEUMOTORAX - Google Patents

Abstract

A device for treating pneumothorax, including a drainage tube having an outer part with a check valve installed in it, and an inner part with transverse holes in its wall, characterized in that the tube is equipped with an occlusive dressing made of an airtight material with an adhesive base, the outer diameter the outer part of the drainage tube is larger than the outer diameter of the inner part, and the transition between the outer and inner parts has a conical shape, while the occlusive dressing is hermetically installed it is located on the outer part of the drainage tube above the conical transition, under the occlusive dressing a fixing ring is installed, soldered to the drainage tube, and a moisture-absorbing dressing is placed under the fixing ring.

Description

The utility model relates to the field of medicine and is intended for the treatment of open pneumothorax during the treatment and evacuation measures that arose as a result of gunshot wounds or injuries with a sharp object, and can also be used to treat closed and valvular pneumothorax with preliminary puncture of the pleural cavity.

A device for the treatment of open pneumothorax (see application No. 93027520, IPC A61M 1/04, RU), which contains a bandage made of rubberized fabric, a sound signal valve and straps. The inside of the dressing is treated with an adhesive base.

A disadvantage of the known device is its lack of reliability, due to the inability to stabilize the wound channel. The layers of the chest (skin, subcutaneous tissue, muscles) during breathing, coughing, and when a person moves are displaced relative to each other, due to which the wound canal is blocked, which prevents air from passing through the valve from the pleural cavity to the atmosphere. Also, this device does not provide a hemostatic or moisture-absorbing function, which contributes to the accumulation of blood under the adhesive base of rubberized fabric. This in turn creates the conditions for leakage.

A device for the diagnosis and treatment of pneumothorax (see patent No. 2082445, IPC А61М 27/00, RU), taken as a prototype, containing a drainage tube with a valve in the form of a tensile elastic membrane mounted on the outside of the drainage tube, and with holes on the inside .

The disadvantage of this device is that it does not provide a fastening system for the drainage tube, which in turn does not allow long-term transportation, requires continuous visual monitoring of the device. The tube is not tightly attached to the chest and does not have a secure fit. When using it, it is proposed to puncture the pleural cavity, which can only be performed by a medical professional.

The objective of the claimed utility model is to increase the efficiency, reliability and usability of the device.

The problem is solved in that in a device for treating pneumothorax, including a drainage tube having an outer part with a check valve installed in it and an inner part with transverse holes in its wall, the tube is equipped with an occlusive dressing made of an airtight material with an adhesive base, moreover, the outer diameter of the outer part of the drainage tube is larger than the outer diameter of the inner part, and the transition between the outer and inner parts is conical in shape, with an occlusive dressing hermetically mounted on the outer part of the drainage tube above the conical transition. A fixing ring is installed on the drainage tube, placed under the occlusive dressing. The device is equipped with a moisture-absorbing dressing placed under the retaining ring.

The claimed utility model has a robust design that allows you to effectively drain the pleural cavity through the wound channel regardless of the position of the body, breathing, coughing and patient movements. Due to the conical transition, the fixing ring and the adhesive base, the tube is easily inserted into the wound channel and is stably fixed on the victim’s body. Due to the implementation of the interior of soft plastic, it is atraumatic for the lung and pleura. An occlusive dressing made of rubberized fabric or polymer material allows you to reliably seal the wound canal, and a moisture-absorbing dressing prevents the accumulation of free blood under the adhesive base of the occlusive dressing. The stopping of bleeding from the edges of the wound canal, primarily from a bullet wound, is achieved by the wide part of the drainage tube, squeezing the capillaries at the edges of the wound, and the cone-shaped part facilitates the introduction of the drainage tube into the wound canal. Additional openings allow air to escape, even if the main opening in the interior is clogged with scraps of tissue or a blood clot. The possibility of easy insertion of the drainage tube into the wound canal makes it possible to provide assistance with open pneumothorax as part of mutual assistance by rescuers (paramedics), including in the field, without the involvement of medical personnel.

The utility model is illustrated in the drawing, which shows a General view of the device in section.

The device includes a drainage tube 1, which has an outer part 2 (made of hard plastic), in the opening of which a check valve 3 is installed, and an inner part 4 (made of soft plastic) with transverse openings 5 for venting air. The drainage tube 1 between the outer 2 and the inner 4 parts has a conical transition 6. On the outer part 2, above the conical transition 6 of the drainage tube 1, an occlusive dressing 7 of airtight material (for example: soft plastic, rubberized fabric) with an adhesive base is hermetically sealed 8. To the outer part 2 of the drainage tube 1 is soldered retaining ring 9 made of semi-rigid plastic. A moisture-absorbing dressing 10 is attached to the retaining ring 9. The lower end 11 of the inner part 4 of the tube 1 is rounded.

The device is installed as follows.

Clean the edges of the wound and the skin around it from contaminants (dust, blood, etc.) and treat with an alcohol wipe. Take tube 1 in the hand by the outer part 2 and insert the inner part 4 into the wound channel until it stops (to the retaining ring 9). With two hands, firmly press the occlusive dressing 7 to the body of the victim for reliable fixation.

After installing the device, the direct communication of the pleural cavity and the atmosphere is terminated. Due to the check valve 3, the air masses can only move from the inside of the tube 4 to the outside 2, i.e. from the pleural cavity to the atmosphere. When inhaling, a negative pressure is created in the pleural cavity, however, the check valve 3 does not allow air to penetrate into the pleural cavity. During exhalation, the pressure in the pleural cavity becomes greater than in the surrounding atmosphere. The check valve 3 opens and part of the air from the pleural cavity is released into the atmosphere. Thus, with respiratory movements and a cough that accompanies pneumothorax, air from the pleural cavity enters the atmosphere and the lung straightens.

Claims (1)

A device for treating pneumothorax, including a drainage tube having an outer part with a check valve installed in it, and an inner part with transverse holes in its wall, characterized in that the tube is equipped with an occlusive dressing made of an airtight material with an adhesive base, the outer diameter the outer part of the drainage tube is larger than the outer diameter of the inner part, and the transition between the outer and inner parts has a conical shape, while the occlusive dressing is hermetically installed it is located on the outer part of the drainage tube above the conical transition, under the occlusive dressing a fixing ring is installed, soldered to the drainage tube, and a moisture-absorbing dressing is placed under the fixing ring.

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