RU70627U1 - DEVICE FOR VACUUM THERAPY OF PURULENT RAS - Google Patents

Abstract

The utility model relates to medical equipment and is intended for the vacuum treatment of purulent and necrotic wounds in their preparation for plastic closure.

The device contains a fine-meshed porous material, a drainage system for the wound, an insulating film and a vacuum source, depending on the parameters of the wound, fine-meshed porous material with a thickness of 5 to 50 mm is used, the shape and dimensions of which are individually modeled by the size of the wound, its walls and bottom.

The device allows to increase the effectiveness of vacuum therapy.

Description

The utility model relates to medical equipment, namely to devices intended for the treatment of purulent and necrotic wounds in their preparation for plastic closure.

A device for treating infected wounds and cavities is known, comprising a handle, a vacuum regulator and a tip with a channel for connection to a vacuum line, while it is equipped with a bactericidal solution container located in the handle and a magnetostrictive transducer associated with the tip and placed in a bactericidal container solution (see ed. St. USSR No. 587941, M.kl.-2: A61M 01/00, publ. 15.01.1978).

This known device allows to achieve complete cleansing of the wound with the least trauma.

However, the known method is not effective enough, especially in the treatment of ischemic limb, as it does not prevent a possible deterioration of microcirculation in the wound.

A device for vacuum drainage of wounds containing a drainage tube, a collection jar, an exhaust pipe and a vacuum mechanism, which is made in the form of two containers placed one on top of the other, and the outer container

made rigid and connected by an exhaust pipe to the collection can, and the inner container is made elastic with the possibility of expansion and contraction and communicates with the atmosphere (see ed. USSR certificate No. 1044288, M.cl. A61M 1/00, publ. 30.06. 1981).

According to the authors of the known invention, this device provides a given degree of vacuum during prolonged evacuation.

The disadvantage of the known system is the inability to ensure full aspiration from the entire surface of the wound. In the wound, zones that are not accessible for aspiration are possible, which undoubtedly lengthens the course of the wound process. In addition, an adequate vacuum aspiration of an open wound is extremely difficult due to the constant suction of atmospheric air into the drainage system, which also reduces the effectiveness of the treatment.

Known installation for vacuum therapy "VAC-therapy" company "KCI" (Denmark). This installation consists of a fine-porous porous material - a polyvinyl sponge, with a pore size of 200 microns, a drainage system for wound discharge, an insulating sterile adhesive film "DIRAPLAST" and

an individual source of vacuum, calculated for a certain number of hours of operation (http: // www.etrs.org/bulletin l2_l / section5.php).

The known design allows you to use two modes of operation: continuous (continuous) and non-constant (intermittent (5 minutes, work 2 minutes break).

A disadvantage of the known system for vacuum therapy of purulent wounds is that it is not recommended for use with newly formed wounds. According to experts who created it, a vacuum when using a known system can cause bleeding. This can be explained by the fact that a polyvinyl sponge in a known design is made of standard thickness, the same for all configurations of purulent wounds, is not modeled for the individual dimensions of the wound, due to which free space remains between the bottom and the walls of the wound when applying the dressing. When creating a discharge, it is the wound tissues located in this space that are not protected by anything and therefore are injured by vacuum, which is the cause of bleeding.

In addition, this system has a limited service life, since an individual vacuum source is designed for

a certain number of hours of work, regardless of whether the patient needs further treatment or not.

Thus, the technical result, the solution of which is claimed by the claimed utility model, is the creation of a device for the effective treatment of purulent wounds.

The specified technical result is achieved by the fact that in the known system for vacuum therapy of purulent wounds containing fine-porous porous material, a drainage system for wound discharge, an insulating film and a vacuum source, according to a utility model, depending on the parameters of the wound, fine-meshed porous material with a thickness of 5 to 50 is used mm, the shape and dimensions of which are individually modeled by the size of the wound, its walls and the bottom.

The use, depending on the parameters of the wound, of a fine-meshed porous material with a thickness of 5 to 50 mm, the shape and dimensions of which are individually modeled by the size of the wound, its walls and bottom, can significantly increase the effectiveness of treatment of purulent wounds.

This is due to the fact that depending on the parameters of the wound, a porous fine-mesh material with a thickness of 5 to 50 mm, modeled by the shape and size of the wound, allows

to achieve a snug fit of the porous material to the walls and bottom of the wound, thereby achieving complete isolation of the wound from the external environment.

The tight fit of the porous material to the walls and the bottom of the wound during the creation of a discharge protects these tissues, eliminates their trauma and, as a result, eliminates the possibility of bleeding, thereby increasing the effectiveness of treatment.

The inventive device is shown in the figure. Figure 1 shows a schematic diagram of the inventive system; figure 2 is a diagram with a section through a system of drainage tubes.

The inventive system for the treatment of purulent wounds contains a fine-porous porous material 1, a drainage system for the wound, consisting of drainage tubes 2 and a collection tank 3, as well as an insulating film 4 and a vacuum source 5.

As a fine-porous porous material 1, foam rubber with a thickness of 5 to 50 mm depending on the size and profile of the wound is used, the shape and dimensions of which are individually modeled according to the size of the wound, its walls and bottom.

As a source of vacuum 4 can be used as a stationary (centralized), and non-stationary (portable) vacuum source, which can be used as a portable compressor.

As the insulating film 4, a transparent adhesive film of the company "Joban" (Germany) is used.

In the drainage system, fragments of tubes 2 of the intravenous infusion system are used.

Foam sponge 1 with a thickness of 5 to 50 mm is subjected to pre-sterilization treatment, sterilization and storage by order No. 408.

For pre-sterilization preparation of foam sponge 1 use two containers with disinfectant solution "Ecodez". In the first container, the foam sponge is mechanically washed, in the second, it is soaked. Then it is washed under running water.

Sterilization of the foam sponge 1 is carried out in a 6% solution of hydrogen peroxide at a temperature of 50 ° for 3 hours, and at a temperature of 18 ° for another 6 hours.

Foam sponge 1 is stored in a 6% hydrogen peroxide solution at a temperature of 18 °. When storing a foam sponge 1

a dark glass container must be used. Protect from sun exposure.

Foam sponge 1 is modeled individually according to the profile of the wound of a particular patient immediately before applying the dressing.

All manipulations when applying a vacuum dressing are performed under sterile conditions in the dressing room or operating room.

The application of a vacuum dressing is as follows.

Before applying the vacuum dressing taken from the wound for bacteriological examination.

The wound is thoroughly washed and dried. Foam sponge 1 is squeezed out, rinsed abundantly with 0.9% sodium chloride solution or 1: 5000 furatsilin solution, wrung out, dried with a sterile cloth.

Next, modeling the foam sponge 1 with scissors along the contour, depth, and relief of the wound.

Fragments of a disposable system for intravenous infusion used as drainage tubes 2 are perforated and passed through the thickness of the prepared foam sponge 1.

Foam sponge 1 is laid strictly on the wound surface, tightly pressed to its bottom. The edges of the wound remain free to avoid maceration of the skin under the foam sponge 1.

The sterile adhesive film 4 for isolating the surgical field sequentially, as it adheres to the skin, is released from the protective layer. The film 4 is hermetically applied to the skin around the wound, to the drainage tubes 2 in those places where they "exit" from the foam sponge 1 and to the sponge 1. The tightness is checked with a syringe or "accordion", a vacuum is created. Next, the patient goes to the ward, where the drainage tubes 2 are connected to a centralized source of vacuum 3. A vacuum of 125 mmHg is created. Additionally, the bandage is fixed with a gauze bandage.

The vacuum source 3 operates continuously for up to 3 days. Shutdown is carried out no more than 2 hours a day. Disconnection is carried out to change the dressing and replace the foam sponge 1, since as a result of the treatment, the size of the wound is reduced, which is why it is necessary to reduce the size of the foam sponge 1. The continuous operation of the vacuum source 3 eliminates the weakening of the pressure, to ensure constant

removal of exudate, stimulates blood circulation, which stimulates the growth of granulation tissue in the wound.

The dressing is changed every 24-72 hours until the wound is ready for plastic closure or until it is completely healed. If patients have moderate pain by the end of the first day, the discharge decreases by 20-30 mm Hg.

The inventive design allows you to apply a vacuum dressing on the wounds of the foot with SDS (diabetic foot syndrome) on the operating table, immediately after the excision of the purulent-necrotic focus.

The device operates as follows.

After applying the dressing to the wound, the drainage system is connected to a vacuum source 4. A vacuum is created in the cavity of the container 3 for detachable from the wound. The resulting vacuum is transferred to the wound area, as a result of which the exudate from the wound cavity begins to be sucked out through the foam sponge 1, the perforations 5 in the drainage tubes 2 and directly the drainage tubes 2 into the container 3 for the wound.

Claims (1)

A device for vacuum therapy of purulent wounds containing fine-porous porous material, a drainage system for wound, an insulating film and a vacuum source, characterized in that depending on the parameters of the wound, fine-grained porous material with a thickness of 5 to 50 mm is used, the shape and dimensions of which are individually modeled by the size of the wound, its walls and bottom.