RU168865U1 - A device with antibacterial and hemostatic properties for first aid for wounds - Google Patents

Abstract

The utility model relates to medicine, namely to devices used in disaster medicine. A device with antibacterial and hemostatic properties for providing first aid for injuries is intended for first aid in the disaster area, as well as for temporarily stopping external bleeding during transportation of the victim. The authors propose a napkin made of hemostatic collagen plates in combination with antibacterial and hemostatic drugs, while it consists of at least two hemostatic collagen plates with a thickness of at least 3 mm, while the lower plate is covered with a mixture of zeolite and sulfonamide powders in equal proportions of at least 1 thickness mm, and the upper plate is impregnated with gentamicin at the rate of 40 mg per 1 cm plate, wipes can be packed in a sterile shell.

Description

The technical field to which the utility model relates.

The utility model relates to medicine, namely to devices used in disaster medicine.

State of the art

Soft tissue and organ injuries are the most frequent injuries sustained by the injured, as well as by those involved in the elimination of a complicated emergency. It should be noted that in modern conditions, despite the high level of medicine, mortality in the focus of a complicated emergency can reach 40%. This is due to the untimely provision of medical care in the outbreak, the remoteness of the stages of medical evacuation and the use of obsolete materials and equipment for first aid. The main unfavorable factors for injuries are: the presence of long-lasting bleeding under a bandage, a significant contamination of the wound surface with microorganisms that are resistant to most modern antibiotics used orally.

Currently, there are two approaches to the development of devices for providing first aid for injuries - the use of a dressing bag in the form of a bandage or the introduction of a substance that promotes blood coagulation

For first aid, various options for an individual dressing package can be used (regulated by GOST 1179-93) [Sakhno II, Sakhno VI Disaster medicine (organizational issues. M: GOU VUNMTS MZ FR, 2001 - S. 126-127]:

- an individual dressing bag, consisting of a package, a dressing kit that includes two absorbent pads and a fixing bandage, one of the pads being fixed motionless on the fixing bandage, and the second with the ability to move, characterized in that the pads contain at least two layers - atraumatic-sorption and a protective, fixing bandage is made of elastic knitted material, and the package has an outer layer of lavsan, a second layer of foil and an inner polyethylene layer [patent for invention No. 21641 50 from 07/09/1997 A61L 15/00, A61F 13/00].

- an antiseptic individual dressing bag, including a bag, a cotton pad, which contains an antiseptic substance and a patch for fixing the pillow on the wound surface [USSR copyright certificate 31578, cl. A61F 13/02, 1932].

- an individual dressing bag containing a gauze bandage and a compression pad attached to the inside of the strip at a point intermediate between the ends of the strip. And the outer side of the pillow has a support element of an impermeable flexible material covering the area. An adhesive layer is applied to the support element from its inner side, due to which it is attached to the strip and through the strip to the back side of the compression pad [US patent 3421502, class. A61L 15/00].

- an individual dressing bag containing a cushion and a fixing element fixed to the outside, for example a bandage, with two ends, one of which is of limited length, and the other is in the roll. The bag pad is provided with at least one loop proportional to the roll of the bandage and located on the free end of the bandage of a limited length, or a slot located along the side edge of the pad [see USSR certificate of authorship 1635984, cl. A61F 13/00, 1991].

It should be noted that the military, police and rescuers have an individual first-aid kit (AI-1, AI-2, KIMGZ and their analogues), where there is a broad-spectrum antibiotic for oral use. For moderate and severe wounds and burns, 1-2 tablets of this antibiotic are used in accordance with the instructions in the medicine cabinet [Sakhno II, Sakhno V.I. Disaster medicine (organizational issues. M: GOU VUNMTS MZ FR, 2001 - S. 124].

As a prototype, we took a product obtained by implementing the "Method of local hemostasis in explosive wounds" [application for the grant of a patent for the invention No. 2014105793/15 of 02.17.2014]. The authors propose to make a multi-layer gauze napkin from two gauze 4-layer napkins, while between these two 4-layer gauze napkins a layer of hemostatic agent “Hemo-stop” is applied in the amount of 1.0-2.0 g per 1 sq. see, then the resulting multilayer gauze napkin is applied to the wound.

All of the above devices have the following disadvantages:

1) the inability to completely stop the bleeding in the wound - it is assumed that the bleeding will stop on its own when the dressing is soaked, but when transporting the wounded in a complicated emergency, it is impossible to provide gentle transportation, as in everyday activities; in addition, the victim himself can carry out some actions caused by the changed combat situation, which leads to the displacement of the bandage and the breakdown of the thrombus formed in the wound;

2) the low effectiveness of oral administration of antibacterial drugs, due to the inability to maintain a high concentration of the antibacterial drug for a long time (fractional parenteral administration is necessary), the low concentration of the antibacterial drug in the wound leads to the rapid growth of antibiotic-resistant strains of microorganisms;

3) the introduction of a sorbent layer into the dressing can lead to the development of anaerobic infection by creating a favorable oxygen-free nutrient medium and sealing the wound surface from oxygen.

In the claimed device, the listed disadvantages are eliminated.

Utility Model Disclosure

The authors propose a device with antibacterial and hemostatic properties for first aid in wounds, which is a napkin made of hemostatic collagen plates in combination with antibacterial and hemostatic preparations, which consists of at least two hemostatic collagen plates with a thickness of at least 3 millimeters, while the lower the plate is coated with a mixture of zeolite and sulfanilamide powders in equal proportions with a thickness of at least 1 mm, and the upper plate is impregnated with gentamicin from calculating 40 mg per 1 cubic centimeter of plate.

The device we offer has several advantages:

1) ensuring a complete stop of bleeding in the wound due to the formation of a thrombus clot both when the hemostatic sponge is soaked (blood coagulation factors act) and when blood flows out when the zeolite powder is exposed (adsorbs water);

2) the local use of sulfonamide and gentamicin in the maximum daily dosage guarantees death with a decrease in the growth rate of most pathogenic microorganisms without negative effects on the human body;

3) zeolite is located on the surface of a porous hemostatic sponge, which prevents the formation of a tight crust and does not create conditions for the development of anaerobic infection.

The technical result of the use of the device is to provide the best conditions to prevent the development of early complications during transportation of the injured person, namely to provide a sterile oxygen-permeable dressing with a pronounced local hemostatic effect (hemostatic sponge and zeolite powder and suppression of the growth of pathogenic microorganisms (due to local application of sulfonamide and gentamicin at the maximum daily dosage).

To characterize the utility model, in particular, the following features of the device are used:

A device with antibacterial and hemostatic properties for first aid for wounds,

- consists of not less than two hemostatic collagen plates with a thickness of at least 3 millimeters

- the lower hemostatic collagen plate is covered with a mixture of zeolite and sulfonamide powders in equal proportions with a thickness of at least 1 mm

- the upper hemostatic collagen plate is impregnated with gentamicin at the rate of 40 mg per 1 cubic centimeter of the plate.

Brief Description of the Drawings

No drawings or illustrations.

Utility Model Implementation

A device with antibacterial and hemostatic properties for first aid for wounds can be used as follows:

1. Under aseptic conditions, it makes the claimed device from sterile components; if possible, the resulting product is packaged in a sterile sealed enclosure.

2. In the center of the disaster, when injured, open the shell of the claimed device and lay it on the wound site, press it tightly, apply a bandage or improvised bandage from improvised materials on top.

3. At the moment the device is applied, it is impregnated with blood, which forms a dense blood clot after a set of interaction with a collagen hemostatic sponge, while the zeolite layer dries the surface layer of the formed blood clot, sulfanilamide powder enters the wound and thrombus.

4. When moving the victim, the destruction of the primary thrombus is possible due to mechanical stress. With the resumption of bleeding, the second plate of the collagen hemostatic sponge is soaked. Bleeding stops, and an antibiotic gentamicin enters the wound.

5. During long-term transportation, it is possible to wet the outer surface of the device with liquid to ensure the introduction of gentamicin into the wound.

Claims (2)

1. A device with antibacterial and hemostatic properties for first aid in wounds, which is a napkin of hemostatic collagen plates in combination with antibacterial and hemostatic drugs, characterized in that it consists of at least two hemostatic collagen plates with a thickness of at least 3 mm, the lower plate is covered with a mixture of zeolite and sulfonamide powders in equal proportions with a thickness of at least 1 mm, and the upper plate is impregnated with gentamicin at the rate of 40 mg per 1 cm ³ plate. 2. The device according to claim 1, characterized in that the wipes are packed in a sterile shell.