UA55276A - Method for manufacturing orthopedic appliances - Google Patents

Abstract

The method for manufacturing the orthopedic appliances comprises placing the underlying layer and 1-7 layers of the molding substances soaked with the polyurethane resin. Upon moistening, the material is polymerized. Then the surface is treated and the fixing components are fastened.

Description

Description of the invention

The invention relates to medicine, more precisely to orthopedics and prosthetics, and can be used in the manufacture of means for the treatment and prevention of pathology of the musculoskeletal system.

Widespread methods of manufacturing prosthetic and orthopedic devices, according to which a form-negative of an anatomical object is first made mainly from gypsum bandages, a model material is poured into the negative, for example, dissolved plaster, wax or a thermoplastic low-melting composition (for example, pat. KO Mo 2120259, MKV A 61 BE 2/80, 1998), and after its hardening, 70 prosthetic-orthopedic means are made according to the patient's needs.

The disadvantages of this method are the complexity of the technological process, the production of auxiliary intermediate products that turn into waste, and significant time spent on production.

A known method of manufacturing plastic parts (pat. OE Mo 19827550, MKV В 29 С 51/12 А 61 Е 2/60, 1999) according to which the thermoforming, strengthening material with fibers is heated to a soft 79 elastic state, placed on a plastic part, pressing it in the necessary places to connect with this part, and act with reduced pressure. The connection of the plastic blank with the strengthening thermoforming material allows you to strengthen the strength of the product in the necessary places.

The disadvantages of this method are the complexity of the technological process, the need for sophisticated technological equipment, and the difficulty of obtaining high-quality products.

The method of manufacturing prosthetic and orthopedic devices is also known (auth. St. ZO Mo 1623645, MKV A 61 E 5/00;

A 61 g 72/50, 1998), according to which an anatomical positive of the product is made, a structural thermoplastic material is placed on it, a water-shrinkable material is fixed on its surface, for example, based on polyvinyl alcohol fibers, it is moistened with water at a temperature of 70 - 80"C, and polymerization of the product is carried out in the temperature regime of formation of the structural material.

This method is technically the closest to the proposed one, so it is accepted as a prototype. "

Its disadvantages are that the technological process is complex and material-intensive due to the fact that due to the high polymerization temperature of the materials used for the manufacture of prosthetic and orthopedic means, it is also necessary to manufacture intermediate products, that is, positives.

The technical task of the invention is to simplify the process of manufacturing prosthetic and orthopedic devices by eliminating intermediate operations. Cha

This problem is solved by the fact that in the method of manufacturing prosthetic and orthopedic devices, according to which a molding material is placed on the modeled surface for the manufacture of the device, it is moistened with water, and polymerized in the mode of forming the material, the difference is that the area of the patient's body is placed on the patient's body area a layer, for example, from a knitted tube, if necessary, a leather tape is placed on the cut line along the length of the product 3o, on the underlying layer, depending on the purpose of the product and the weight of the patient, one to seven layers of molding material are placed, which is in the form of a bandage made of woven glass fibers, impregnated polyurethane resin is applied in rounds in such a way that each subsequent round half overlaps the previous one, the resulting blank is modeled from the molding material according to the shape of the anatomical object, after moistening and polymerization, the resulting sleeve is cut along a leather strip, the surface and edges are treated with Z 50 until the required shape is obtained and the size of the tool and the shutter spit fixation elements. c The use of molding material in the form of a bandage made of woven glass fibers impregnated with polyurethane resin eliminates the need for the manufacture of plaster models, allows you to receive a fixing or corrective agent directly on the patient due to the possibility of polymerization at room temperature due to the moistening of the molding material. Applying the forming material in the form of a bandage in rounds with overlapping layers in half allows you to get a high-quality blank for modeling it according to the shape of the anatomical object and, if necessary, for example, when making a corset, to model the areas for 4! correction of the pathology of the spine, and the required strength of the product is obtained with a certain number of layers.

The method is implemented as follows. di On the part of the limb or trunk, on which a prosthetic and orthopedic device is made, for example, a sleeve - and 20 an orthosis for the upper or lower limb, a sleeve of a corset or a head holder, etc. put on an underlayer made of a knitted tube, which performs protective functions. If the product needs to be made with a cut in the future, a leather tape is mixed in the place of the cut line. A forming material in the form of a bandage made of woven glass fibers impregnated with polyurethane resin is placed on the underlying layer, which is applied in rounds in such a way that each subsequent round half overlaps the previous one. During application, the bandage is slightly stretched and 29 smoothed for closer contact between the layers. If necessary, to increase the strength of the product. one to seven layers of molding material are additionally applied. The number of layers depends on the purpose of the product, on the required stiffness to be obtained, on the degree of fixation, the size of the area to be fixed and on the material. For example, to make an orthosis sleeve - on the upper limb from the "Scotchkast" material, you need - 2 - From layers of molding material. 60 - on the lower limb for fracture fixation for patients weighing 7Okg. from the "Softcast" material - five layers.

After the end of applying the bandage rounds of the molding material, bone protrusions, bends and irregularities are modeled. If necessary, the shape of the product is corrected. The modeled sleeve blank is moistened with water and polymerized, curing it for 5-20 minutes, depending on the thickness of the product and the material.

After hardening, the resulting sleeve is cut along a leather strip. They carry out the necessary cutting, fitting and marking to fix the fasteners. They are treated with a leather tape, gluing it to the edge of the product. Check the quality of the contact. Fastening elements are installed, for example, "Velcro" tape. As a forming material, you can use a bandage of the "Softkast" "Scotchkast" type.

The table shows the dependence of the number of product layers on the weight of the patient and the material from which

The product is manufactured.

ORTHOSIS

CORSETS

Depending on the pathology, it is possible to strengthen individual areas of the product with strips made of Scotchkast material.

Thus, the use of this method allows, with a small investment of time and materials, to make light, strong and rigid sleeves for orthoses of the upper and lower limbs directly on the patient to fix them in the treatment of orthopedic diseases or traumatic injuries, or sleeves for corsets on the body or a head restraint for correction pathological changes in the musculoskeletal system. The moisture resistance and porosity of the material after polymerization ensures the hygiene of the product, and the ability to provide immediate assistance to the patient in extreme conditions testifies to the broad possibilities of using the method. "

Claims (1)

The formula of the invention (Ce) , y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y y only method of manufacturing prosthetic and orthopedic means, which includes placement on the modeled surface of y - forming material, its moistening with water and polymerization in the mode of forming the material, which differs in that an underlay is put on the part of the patient’s body a layer, for example from a knitted tube, if necessary, a processing, for example leather, iv) tape is placed on the cut line along the length of the product; on the lining layer, depending on the purpose of the product and the weight of the patient, one to seven layers of molding material are placed, which in the form of a bandage made of woven glass fibers impregnated with polyurethane resin are applied in layers so that each subsequent layer half overlaps the previous one; the workpiece is modeled according to the shape of the anatomical object, after moistening with water and polymerization, the resulting workpiece is cut along the processing tape, the surface and edges are processed and the fixation elements are fixed. " triigya i " : " " : : pov o) c Official bulletin "Industrial property". Book 1 "Inventions, useful models, topographies of integrated microcircuits", 2003, M Z, 15.03.2003. State Department of Intellectual Property of the Ministry of Education and what is the science of Ukraine. 1 1 name) -and 4) 60 b5