RU2714074C1 - Perforated roller bandage (versions) - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine, namely to dressing means in the form of medical tape bandages intended for treating wounds, burns, frostbite, etc. Perforated roller bandage is made in the form of a tape from a warp knitted fabric, which contains a closed chain on the basis of the stitching stitches, and by a weft – a system of threads forming the side and back sides of the bandage. Web has sections with weft threads passed in the loop rows, at the place of which holes are formed, the minimum width of each of which is equal to the distance between the stitches. According to the second version of the bandage, a medicinal and/or homeopathic remedy and/or a biologically active additive and/or a substance with a repellent and/or insecticidal action are applied on its front and/or on its side.

EFFECT: technical result of the invention is aimed at increasing strength and elasticity of the bandage, as well as its air permeability, and in an advantageous version on providing antibacterial and medical properties of the bandage, as well as protection against ticks and blood-sucking insects.

17 cl, 2 dwg, 4 tbl

Description

The group of inventions relates to medicine, namely to options for a dressing in the form of a medical bandage intended for the treatment of wounds, burns, frostbite, etc.

Known antibacterial bandage formed from a two-layer warp knitted fabric, the layers of which are interconnected by elastic threads, while one of the layers of the fabric is made of synthetic threads modified with an additive with antimicrobial action containing silver ions. Another layer of the fabric can also be made of synthetic yarns, however, it is mainly made of natural and / or artificial yarns or fibers, but their combination with chemical fibers or yarns is possible (RU 75570, class A61F 13/00, published on 08/20/2008 )

The well-known bandage is characterized by insufficient breathability, which can lead to the accumulation of pathogens under it, leading to the formation of an unpleasant odor and the expansion of infection.

A known sorption dressing, consisting of several layers bonded by perforation, impregnated with drugs that promote wound healing (RU 2107516; class A61L 15/00, published 03/27/1998).

Perforation in a well-known dressing is not for ventilation, but for fastening together several words of material.

Also known sorption material, made, in particular, in the form of a bandage containing a layer of absorbent non-woven material, impregnated with a medicinal product for the treatment of wounds and burns of various etiologies. The nonwoven material has a perforated structure, and, for example, a hydrogel from boric acid can be used as a medicine (RU 2492873, class A61L 15/16, published on September 20, 2013).

In the description of the patent, there is no mention of imparting breathable properties to the sorption material due to its perforation. In addition, the implementation of the bandage made of non-woven material reduces both the strength properties of the bandage and worsens its fixation on the body, which will negatively affect its operational properties.

The objective of the invention is to improve the operational properties of the bandage. The named task is provided with a technical result aimed at increasing the strength and elasticity of the bandage, as well as its breathability, and, in the preferred embodiment, ensuring the antibacterial and healing properties of the bandage, as well as protection against ticks and blood-sucking insects.

The named technical result is achieved in the invention due to the following set of features.

According to the first embodiment of the invention, the perforated dressing bandage is made in the form of a tape from a warp knitted fabric containing, on the basis of loop stitching columns, a closed chain, mainly of synthetic threads, and for the weft, a system of threads of natural and / or synthetic and / or synthetic yarn, forming the front and back sides of the bandage, while the bandage cloth has sections with weft threads missing in the loop rows, in place of which holes are formed, the minimum width of each of which s is equal to the distance between the looped posts.

A medicine and / or homeopathic medicine intended for emergency or planned treatment of open and gunshot wounds, burns, frostbite, etc., and / or biologically active can be applied to one or both sides of the face and back of the bandage. an additive and / or substance with a repellent and / or insecticidal effect.

Also, adhesive, non-irritating to the skin, may be applied to separate, for example, marginal, areas on one or both sides, or on one side or on both sides (front and back) of the bandage for the convenience of fixing the bandage or creating localized pressure on the body, especially in the case of using the bandage by the victims themselves.

Cotton yarn is mainly used as natural, but yarn consisting of threads or fibers of flax, kapok, wool, silk, or a mixture thereof, including with cotton.

As artificial threads or yarns, viscose yarn or yarn, or a modified viscose fiber, may be used.

As synthetic threads or yarns can be used: polyester, polypropylene or polyamide threads or yarn.

Synthetic threads can be textured, which increases the elasticity and elasticity of the bandage.

Natural and / or artificial and / or synthetic threads or yarns can be treated with an antimicrobial and / or medicinal and / or homeopathic solution and / or a solution with a biologically active additive and / or a substance with a repellent and / or insecticidal effect.

Synthetic threads or yarns can be modified with an antimicrobial additive, for example, containing silver ions.

According to a second embodiment of the invention, the perforated dressing bandage is made in the form of a tape from a warp knitted fabric containing looped weaving columns based on a closed chain, mainly of synthetic yarns, and for weft, a system of yarns made from natural and / or synthetic and / or synthetic yarn, forming the front and back sides of the bandage, while the bandage cloth has sections with weft threads missing in the loop rows, in place of which holes are formed, the minimum width of each of which s is equal to the distance between the looped posts. A medicine is applied to one or both sides (front and back) of the bandage, including homeopathic, intended for urgent or planned treatment of open and gunshot wounds, burns, frostbite, etc., and / or a biologically active additive, and / or a substance with a repellent and / or insecticidal effect.

Also, adhesive, non-irritating to the skin, may be applied to separate, for example, marginal, areas on one or both sides, or on one side or on both sides (front and back) of the bandage for the convenience of fixing the bandage or creating localized pressure on the body, especially in the case of using the bandage by the victims themselves.

Cotton yarn is mainly used as natural, but yarn consisting of threads or fibers of flax, kapok, wool, silk, or a mixture thereof, including with cotton.

As artificial threads or yarns, viscose yarn or yarn, or a modified viscose fiber, may be used.

As synthetic threads or yarns can be used: polyester, polypropylene or polyamide threads or yarn.

Synthetic threads can be textured, which increases the elasticity and elasticity of the bandage.

Natural and / or artificial and / or synthetic threads or yarns can be treated with an antimicrobial and / or medicinal and / or homeopathic solution and / or a solution with a biologically active additive and / or a substance with a repellent and / or insecticidal effect.

Synthetic threads or yarns can be modified with an antimicrobial additive, for example, containing silver ions.

The proposed options for the bandage are characterized by a homogeneous structure, good fixation on the damaged area of the body due to its elasticity, strength, hygroscopicity, including positively affecting its absorption capacity, and ventilation, providing oxygen access to the wound surface, while protecting the wound from dirt and infection.

The structure of both options for the bandage provides a quick excretion of detachable wound exudation.

Medicinal and / or homeopathic remedies and / or a dietary supplement can be applied either directly to one or both sides of the bandage, or by treating these compositions with the threads or yarn of which the bandage is made. Thus, using the proposed bandage, you can enhance the therapeutic effect of the use of a particular drug.

In addition, the proposed bandage is reusable, it can be washed and then used again. After washing or special hygienic or antimicrobial treatment, the bandage does not lose its shape stability.

The invention is illustrated by drawings, where in FIG. 1 schematically shows the structure of a bandage; in FIG. 2 - the layout of the needles of the warp knitting machine and the progress of the weft threads are given.

In FIG. 1 shows a fragment of a possible embodiment of a bandage with a scheme for weaving said fibers and threads. So, the first and second weft yarn systems 1 and 2, made, for example, of cotton yarn, are fixed in the loops of the looped strings of the warp thread 3 made of elastic synthetic, for example, polyester thread 4 and arranged parallel to each other with a certain pitch. The canvas is characterized by ordered sections with an incomplete structure with weft threads of both systems missing, for example, in each 6-12 rows, which is expressed in the formation of through holes 5 on the canvas (Fig. 1). The height of the holes may be different. So, for the formation of shorter holes, the weft threads of both systems can be skipped in each 10-12 rows of the bandage or for the formation of longer holes in each 2-12 rows of the bandage.

In an advantageous embodiment of the bandage, each said hole 5 has a rectangular or square shape and the following dimensions: the width of the hole is equal to the distance between the looped posts of the warp thread 3; the height of the hole is six times the height of the loop of the indicated loop post. However, it is possible to make a bandage with other hole sizes, for example, with a width equal to twice the distance between the hinge posts.

In FIG. 2, the symbol “A” indicates the course of the first system of weft, for example, cotton yarn forming one side of the fabric (front or back), the symbol “B” indicates the course of the second system of weft, for example, cotton or synthetic yarn, forming the other side of the fabric (front or wrong side). The symbol "D" indicates the course of the polyester warp.

The elasticity of the bandage is determined by its knitted basis, and the dimensional stability is associated with a reliable interweaving of warp and weft threads so that the first and second weft yarn systems 1 and 2 are fixed in the loops of the loop strings of the warp thread 3 (Fig. 1.)

Perforated dressing bandage can be made on the basis of knitting single-loop flat knitting machines of 10-21 classes. A manufacturing method is cut. The short end edges of the bandage are overcast on the overlock.

The following is an example of manufacturing a bandage on a warp knitting machine of class 15.

The needles corresponding to the symbol “D” are laid out on the needle plate, in order from the right edge of the fabric to the left, as shown in FIG. 2: one needle, one empty place for needles, second needle, one empty place for needles, ... twenty-sixth needle, one empty place for needles, and the last twenty-seventh needle. The total number of needles is 27.

They stretch 27 warp threads, pass them through the needle blocks and bring them to the needles.

The weft of the first system is laid on the base "D" using the yarn guide, the course of which is indicated in FIG. 2 by the symbol “A”.

The weft of the second system is laid on the basis of "D" using yarn feeders, the course of which is indicated in Fig. 2 by the symbol "B".

A feature of the proposed bandage is that it is perforated. This is achieved by placing yarn feeders for the first and second weft yarn systems in such a way that their stroke is completely consistent when using special dies.

However, to achieve the best hygienic properties of medical devices made from the proposed fabric, associated with increasing its breathability, as well as the possibility of using yarn with different lengths and fineness of fibers and having different physical and mechanical properties, weft yarn with the front and the wrong side the parties are laid out as follows:

- cotton yarn on the front side is laid out with the help of several yarn feeders, each of which moves according to a given report;

- synthetic yarn on the wrong side is also laid out using several yarn feeders using an identical report, and the course of the yarn yarn of synthetic yarn is combined with the yarn guide on the front side.

This embodiment of the bandage cloth allows you to form through holes (cells) 5 in it, and several yarn feeders, each of which is associated with its own yarn system, allows you to get a bandage cloth with different properties, which greatly diversifies the range of such products.

Thus, for the manufacture of the fabric for the proposed bandage, 18 yarn feeders are used.

The control of the thread guide is carried out mechanically or electronically.

For the manufacture of the proposed bandage, depending on the problem being solved, it can be used both natural (cotton, linen, etc.), and artificial (viscose, etc.) or synthetic (polyester, polypropylene or polyamide, etc. ) yarn or thread or any combination of these fibers among themselves, which are part of the mixture of yarn.

For example, modern developments of synthetic light fibers are known, which, along with natural fibers, provide moisture removal and allow the skin to breathe. This effect is achieved through a combination of thermally active polymers with small hollow fibers. Such materials include Outlast and others.

Polypropylene (PP) is actively used in the manufacture of knitted products. PP fibers have the lowest specific gravity, do not sink in water (lighter than water). Using PP micro-fibers gives the bandage lightness, allows the product to “breathe”, remove moisture, guaranteeing a pleasant feeling of freshness. The design of the bandage, which is achieved by combining PP with other fibers (PP + cotton, PP + polyamide, 100% PP, etc.), allows moisture to pass from the inside of the bandage to its front side. In addition, the PP provides the bandage with high wear resistance.

Based on viscose fiber, modified fibers, such as polynose fiber, siblon, mtilon, etc., and fibers created using new technologies, such as high-modulus viscose fiber, Modal, tensel (TENCEL), etc. are created such fibers have increased strength, resistance to abrasion and repeated bending. Already developed fibers - siblon - are used as a substitute for medium-fiber cotton, and polynose fiber in its properties can be an analogue of fine-fiber cotton. The yarn, consisting of or including polynose fiber, gives the bandage stable shape stability and low creasing. Modification is the imparting of new predefined properties to existing fibers upon receipt, by introducing changes to the manufacturing processes.

Fiber Modal is a modified version of viscose fiber, which is made from cellulose and has a composition similar to natural cotton, but it is distinguished by its silky sheen, softness and high hygroscopicity, as well as excellent dimensional stability and strength. Compared to products made of viscose fiber, such fibers are less wrinkled, do not shrink, and have better shape stability.

Tensel is an environmentally friendly hypoallergenic viscose fiber produced by the most sophisticated technology for managing nanofibrils from natural wood pulp. Tencel is extremely durable, has a uniform structure. Tensel products are especially soft and resilient. Tensel fiber is as thin as silk, as strong as polyester fiber, as easy to care for as acrylic fiber, cool and refreshing like linen, 50% better absorb moisture than cotton.

The use of viscose fiber Tensel and Modal in yarn, which is part of the bandage will make it possible to manufacture products with the expected physical and mechanical properties.

The linear density of the polyester, or polypropylene, or polyamide yarn may be 10-100 Tex.

As an example, in the proposed bandage can be used the following types of threads:

- cotton thread 34/1 in each thread guide (A) and (B);

- polyester untwisted yarn, linear density 16.0 tex (D);

Synthetic threads, from which the loop stitches of the base are formed and one of the sides of the bandage, which include polyester (polyester), polyamide and polypropylene threads, can have an antimicrobial additive, for example, silver ions, which will increase the hygienic properties of the bandage that is in direct contact with the human body. A method of obtaining such yarns is described in patents RU 90798 and 97134.

The linear density (number) of cotton yarn is in the range of values: 250 tex × 1 - 6.66 tex × 1 (4/1 - 150/1) or 125 tex × 2 - 6.66 tex × 2 (8/2 - 150 / 2).

The linear density of synthetic threads or yarns is in the range of values: 125 tex × 1 - 5 tex × 1 or 125 tex × 2 - 5 tex × 2. The following table 1 shows the breaking load of the known and proposed dressing bandage in accordance with GOST 3813-72 Textile materials. Fabrics and piece goods. Methods for determination of tensile tensile properties (with the following addition: tensile tests are carried out along the length of the bandage).

During these tests, the breaking load index for the proposed perforated dressing bandage was at least 26 kgf, while the same indicators for the non-sterile gauze bandage were at least 9 kgf; and for a bandage of non-woven material - at least 4 kgf.

The following are examples of specific implementation options for a bandage with a width of 10 cm

An example of the first version of the bandage.

The technical requirements for the bandage perforated dressing are summarized in table 2.

The surface density of the first variant of the dressing bandage perforated is 92 g / m2. The structure of this bandage provides a quick removal of detachable wound exudation, as well as high permeability to air.

An example of the second version of the bandage.

Technical requirements for perforated dressing bandage are summarized in table 3.

The surface density of the second version of the bandage is 80 g / m2.

Polypropylene thread in the second version of the bandage is active against gram-positive and gram-negative bacteria.

Silver ions inhibit the activity of bacteria on the surface of the body, affecting both gram-negative (e.g. Klebsiella pneumoniae) and gram-positive bacteria (e.g. Staphylococcus aureus, including MRSA strains).

Since a bacterium-resistant additive with an antimicrobial effect, containing silver ions, is added to the mass of threads, and not to their surface, it does not migrate from the bandage to the skin, and therefore, is constantly stored in the bandage, even after repeated washing.

The structure of this bandage, as in the first example, provides rapid excretion of the wound exudation, as well as high permeability to air.

An example of the third version of the bandage.

Technical requirements for a perforated dressing bandage, the yarn or threads of the front or wrong side of which is treated with jojoba and aloe vera oils with the addition of vitamin E are summarized in table 4.

The surface density of the third version of the bandage is 84 g / m2.

Textile threads or yarn in this version of the bandage are also active against gram-positive and gram-negative bacteria, helping to suppress the growth of bacteria, as well as fighting fungi, which reduces the expansion of infection and prevents the formation of unpleasant odors, ensuring the hygienic properties of the product.

The structure of this bandage, as in the previous examples, provides rapid excretion of the wound exudation, as well as high air permeability.

The following are examples of different in composition and purpose of the medicinal bases that are applied or with which they impregnate the front and / or wrong side of the proposed bandage, depending on the injury or injury:

- chlorhexidine, or chymotrypsin, or lidocaine, or levomekol, easily penetrating deep into tissues without damaging biological membranes, counteract the growth of pathogens and effectively stimulate cell regeneration processes;

- 5% solution of aminocaproic acid;

- Feracryl - hemostatic topical application, due to which bleeding from small vessels stops after 1-2 minutes, there is no repeated bleeding;

- a combined agent, which contains the antibiotic chloramphenicol and immunostimulating agent methyluracil, which provides anti-inflammatory and antimicrobial effects;

- hydroxymethylquinoxalindioxide is a broad-spectrum antibacterial drug: it has high antimicrobial activity not only against aerobic gram-positive and gram-negative, but also anaerobic microorganisms;

- as a dietary supplement, for example, beeswax containing a large number of amino acids, minerals and vitamins can be used. Organics of wax are perceived by the wound as an active wound healing medium.

On one or both sides of the bandage, a medicinal and / or homeopathic remedy and / or biologically active additive can be applied for emergency or planned treatment of open and gunshot wounds, burns, frostbite, etc.

The finished bandage or yarn (thread) from which it is made can also be processed with agents that have, including repellent and / or insecticidal action, which repels and protects the consumer from tick bites and other blood-sucking insects.

Such tools include, for example, the following:

- diethyltoluamide, which is an organic chemical compound with a repellent and insecticidal effect. Diethyltoluamide effectively protects against bites of such blood-sucking insects as: mosquitoes, biting midges, mosquitoes, midges, horseflies, fleas, blood-sucking flies, ticks, etc .;

- dimethyl phthalate, which has a repellent effect.

Also, the bandage can be used for cosmetic procedures.

An adhesive that does not irritate the skin can be applied to separate areas on one or both sides or on one side or on two sides of the bandage (front and back) to better fix the bandage or create localized pressure on the body.

Also, the bandage can be used to create localized pressure on the body.

The bandage can have a width of 2 to 50 cm.

Claims (17)

1. Perforated dressing bandage made in the form of a tape from a warp knitted fabric containing loop chain on the base of the loop stitches, and along the weft - a system of threads forming the front and back sides of the bandage, while the fabric has sections with weft threads missing in the loop rows , in place of which holes are formed, the minimum width of each of which is equal to the distance between the looped posts. 2. A bandage according to claim 1, characterized in that a medicinal and / or homeopathic remedy and / or a biologically active additive and / or a substance with a repellent and / or insecticidal action are applied to its front and / or wrong side. 3. The bandage according to claim 1, characterized in that an adhesive substance is applied to its individual sections or to one of its sides or to its two sides (front and back). 4. The bandage according to claim 1, characterized in that the system of threads forming its front and wrong sides are made of natural and / or artificial and / or synthetic yarn and / or threads. 5. The bandage according to claim 4, characterized in that cotton yarn or threads are used as natural. 6. A bandage according to claim 4, characterized in that the rayon or yarn or modified viscose fiber used in the yarn or yarn is used as artificial 7. The bandage according to claim 4, characterized in that the natural and / or artificial and / or synthetic threads or yarns are treated with an antimicrobial and / or medicinal and / or homeopathic solution and / or a solution of a biologically active additive, and / or a solution with repellent and / or insecticidal action. 8. The bandage according to claim 4, characterized in that the following are used as synthetic threads or yarn: polyester, polypropylene or polyamide thread or yarn, including textured. 9. The bandage according to claim 8, characterized in that the synthetic yarn or yarn is modified with an additive with antimicrobial action. 10. Perforated dressing bandage made in the form of a ribbon from a knitted warp knit fabric, containing a closed chain on the base of the loop stitches, and on the weft - a system of threads forming the front and back sides of the bandage, while the fabric has sections with weft threads missing in the loop rows , at the place of which holes are formed, the minimum width of each of which is equal to the distance between the hinge columns, while the medicinal and / or homeopathic is applied to its front and / or wrong side e agent and / or biologically active additive and / or substance with a repellent and / or insecticidal effect. 11. The bandage according to claim 10, characterized in that an adhesive substance is applied to its individual sections or to one of its sides or to its two sides (front and back). 12. The bandage according to claim 10, characterized in that the system of threads forming its front and back sides is made of natural and / or artificial and / or synthetic yarn and / or threads. 13. A bandage according to claim 12, characterized in that cotton yarn or threads are used as natural. 14. The bandage according to claim 12, characterized in that the rayon or yarn or modified viscose fiber used in the yarn or yarn is used as artificial. 15. The bandage according to claim 12, characterized in that the natural and / or artificial and / or synthetic threads or yarn are treated with an antimicrobial and / or medicinal and / or homeopathic solution and / or a solution of a biologically active additive, and / or solution with repellent and / or insecticidal action. 16. The bandage according to claim 12, characterized in that the following are used as synthetic threads or yarn: polyester, polypropylene or polyamide thread or yarn, including textured. 17. The bandage according to claim 16, characterized in that the synthetic yarns or yarns are modified with an additive with antimicrobial action.

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