RU2288743C2 - Bandage device - Google Patents

Abstract

FIELD: medical engineering.

SUBSTANCE: device has part possessing X-ray contrast properties. It is designed as metal or metallized thread or foil.

EFFECT: high reliability during and after operation.

Description

The invention relates to medicine, in particular to surgery. Dressing devices are medical devices designed to treat and prevent infection of wounds and other injuries of the skin and tissues. Dressing devices include products that include gauze: bandage, napkins, tampons, gauze balls, turundas. All dressing devices should have the necessary properties: hygroscopicity - the ability to absorb liquid, for example, blood, pus, drying out, evaporate the liquid soaked liquid, not cause allergic reactions, do not change their properties during sterilization, have a certain mechanical strength, be reasonably cheap and affordable. In abdominal surgery, the problem of leaving foreign objects during and after surgery is known. Among foreign objects unintentionally left in the body during operations, tissue (gauze) prevails, metal objects are less common. Their most frequent localization is the peritoneal cavity. Intraoperative left tissue foreign bodies in most cases adversely affect the patient’s health and death is not excluded. Visualization of dressings inadvertently left during and after surgery is not radiologically possible due to the fact that dressings made of gauze are not visible on x-rays due to radiological negativity and lack of radiopacity.

In medicine, dressing devices are known that try to solve the problem of detecting dressings left in the patient’s body, for example, in item RU No. 2050859, A 61 L 2/16 of December 22, 1995, a sterilizing napkin made of a cellulose-containing textile material with an antiseptic agent is proposed, containing salts with metal ions. Use these napkins to sterilize surfaces, hands of a surgeon, a surgical instrument and store sterile objects in field and extreme conditions. Napkins are used as follows. It is moistened with tap water, and the treated surface is wiped for 1-3 minutes. The completeness of processing is determined by the uniform coloring of the surface in light yellow, greenish yellow, dark green or brown, depending on the color of the coordination unit of the corresponding metal chelate.

The disadvantages of this device are: the proposed sterilizing cloth is not suitable for use during intracavitary surgery, you can bring an infection when rubbing the instrument with tap water, it is not possible to detect such a tissue in the patient's body, because metal ions are a metal atom, not a metal product, they do not have radiopacity, are too small and the x-ray does not react to the ions (atoms) of the metal metal, the influence of the salts used to wipe the wipes can adversely affect the patient’s operated organs during surgical operations.

The closest technical solution is the dressing indicated in US No. 4185626 dated January 29, 1980, containing a thread made of an elastomeric material in which particles of a radiopaque substance are distributed, which allows visualization of the dressing devices using x-rays. In addition to this thread, a reinforcing thread made of a material having greater rigidity than an elastomeric thread is introduced into this device. The reinforcing thread is located inside or on top of the elastomeric thread, it can be wound on or bonded to the elastomeric thread. Such a dressing is advisable to use for external wounds of the legs, pelvis, hands.

The disadvantages of the dressing are: a device, a very technologically complex product, economically expensive, unreliable, because a thin elastomeric thread is fragile and during a surgical operation can be torn by a surgical instrument, its remnants with a radiopaque substance will remain in the patient’s body and cannot be removed from the internal cavities of the body, which can lead to false information about finding a dressing, such a dressing for operated internal cavities are not suitable, too heavy if there are several layers of such a tool, does not have a certain softness and elasticity inherent in gauze dressings dstvam, with steam or hot pressing of the device may melt the filaments, i.e., also not reliable in operation.

The technical result of the proposed solution is to improve the quality and reliability of determining dressings during and after intracavitary surgical operations, increase rigidity while maintaining the softness and elasticity of gauze dressings, increase manufacturability and economy of manufacture, increase reliability during operation.

This result is achieved in that the dressing device contains gauze from one to several layers and is introduced into the last radiopaque means made in the form of a metallized component, for example, in the form of a metal or metallized thread or foil.

The essence of the solution is expressed in the aggregate of essential features sufficient to achieve the technical result provided by the solution.

The essential features of the device, which coincide with the features of the prototype, are: A - the presence in the device of gauze containing from one to several layers of gauze; B - a radiopaque agent introduced into gauze.

An essential distinguishing feature of the device is: B - radiopaque means made in the form of a metallized component, for example in the form of a metal or metallized thread or foil.

In radiology, the radiopacity of an image is determined by the difference in tissue absorption of x-ray energy. Even very small objects, if they trap x-rays, are well displayed against a background of tissue that is transparent to x-rays due to the large difference in contrast, i.e. Organic tissue is metal. The resolution of the diagnostic device also depends on the natural contrast of the tissues, which it is able to distinguish. Substances that delay more radiation than soft tissues are X-ray positive - these are metallized components. The main requirements for radiopaque substances are the creation of increased image contrast, harmlessness when introduced into the patient's body.

The essence of the proposed solution is the creation of radiopaque gauze dressings for the preparation of dressings from them for use in cavity surgery by introducing filaments or fibers with radiopaque (radiopositive) properties into the gauze fabric. An example of such filaments is metal fibers obtained from metals and their alloys - copper, aluminum, gold, silver, brass, stainless steel grade 12X18H10T, used in food, medical industry, in the environment of sea water, in space technology. In modern technology, metal filaments are made thinner than a human hair (~ 20 microns). Aluminum threads are made by cutting flat foil into thin strips. To give greater strength, metallic threads are wrapped in silk or cotton threads (these materials are hygroscopic). Especially effective from the point of view of antibacterial effect, metal threads coated with a thin layer of silver or gold. In addition to metal fibers, metallized threads are produced, consisting of narrow ribbons or films with a metal coating on metals or non-metals. During a surgical operation, a dressing device (gauze, napkin, tampon), for example, is in the abdominal cavity in the blood and sometimes it is lost, it gets wet and merges in color with the living tissues of the body. By shining the rays of the operation site, one can determine the presence or absence of a dressing device. Gauze dressings (devices) are made of various shapes, sizes and the number of layers of gauze. Turunda has a width of 1-2 cm, gauze flies from 2 × 2 cm to 18 × 18 cm, and gauze napkins have sizes from 14 × 16 cm to 35 × 45 cm, gauze bandage with a width of 7 to 18 cm and a length of 500 to 1000 cm. And from one layer (bandage) to 10-12 layers (napkins). Metallic or metallized threads in the dressing device can be from one to several, i.e. in a gauze fly there can be one thread, and in a roll of gauze having a width of 70-80 cm and a length of 200-300 cm, and in gauze packets the length can reach up to 300 m, from which dressings are then made, there can be several metal fibers - threads located both along and across, and obliquely. Gauze dressings with such threads acquire a stiffer skeleton, ironing time is reduced.

Using the proposed solution "Dressing device" in comparison with the known solution prototype can improve the quality and reliability of determining dressings during and after intracavitary surgery, increase rigidity while maintaining softness and elasticity of gauze dressings, increase manufacturability and economy of manufacture, increase their reliability during operation due to the fact that in the dressing device containing gauze from one to several layers gauze and introduced into the last radiopaque tool, the latter tool is made in the form of a metallized component, for example in the form of a metal or metallized thread or foil. Because metal and metallized threads or foil allow dressing devices to be X-ray-positive, reduce trauma to zero, reduce the effect of decomposition of gauze due to rapid detection even during the operation using X-ray control and corrosion protection of metal fibers, covering them with a thin layer of silver (dusting), the ability better ironing and the acquisition of more stable flexion in the manufacture of such gauze of certain dressing devices. The use of metallized gauze will be widely used in medicine and is especially effective in cavity surgery, as it will exclude repeated revision of surgical interventions. The manufacturing technology of such gauze is simple, the economic costs of mass production are extremely small. Metallized thread can be woven, attached under pressure by steam. The proposed solution fully meets the criteria of the invention industrial applicability.

Claims (1)

A dressing device containing from one to several layers of gauze, which includes a component made of a material with radiopaque properties, characterized in that the component is made in the form of a metal or metallized thread or foil.