Wyniki wyszukiwania - BazTech

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Biological Properties of Knitted Fabrics Used in Post-Burn Scar Rehabilitation

Latańska Ilona, Kowalski Krzysztof, Kłonowska Magdalena, Jaworska Aleksandra, Doś Janusz, Karbowski Krzysztof, Sujka Witold

Autex Research Journal

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2022

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Vol. 22, no. 3

343--349

EN

Compression therapy along with the use of compression materials is one of the main prevention methods against scars and keloids. Compression knitted fabrics must be characterized by parameters that enabling to reaching class I compression (16–24 mmHg). When constant pressure higher than capillary vessels pressure is applied to scars, it will have a negative influence on formation of keloids and significantly prevents their hypertrophy. Long-term pressure causes tissue hypoxia, slowed-down metabolism, and reduction of the amount of fibroblasts. One of key elements of compression therapy is choosing the required knitted fabric with necessary structure and physicomechanical parameters as well as designing methodology based on Laplace law, which will ensure the application of desired value of single-unit pressure on post-burn scar. Apart from physicomechanical parameters, a medical device, such as compression garment, must be characterized by high level of biocompatibility. An added value in terms of functional parameters is the antibacterial action of the product. It was obtained from the fibers used which contain a compound in their matrix and out of which silver ions are released. Additionally, the antibacterial action was also obtained via impregnation of the knitted fabric in RUCO-BAC AGP which contains silver. In the course of the research presented in the article, compression fabric was designed with a special construction - a knitted fabric comprising two layers. The first layer, which is in direct contact with human skin, is manufactured out of a yarn with conductive-diffusive characteristics. The second layer is made of microfibers which keep the moisture out of skin surface and also diffuse it to the outside. The following article describes the final stage of developing a compression garment aiding the external treatment process; the mentioned stage is related to biological tests such as microbiological contamination, cytotoxicity, sensitization, and irritation. The article closes a series of publications presented by the Authors in bibliography. It also presents the antibacterial activity tests done on the developed double-layer knitted fabric enriched with silver. The obtained results suggest that the fabric may be used not only in compression therapy, but also in the field of cosmetics and aesthetics.

2

Comparative Study of Long- and Short-Stretch Woven Compression Bandages

Aboalasaad Abdelhamid R. R., Sirková Brigita Kolčavová, Bílá Pavlína, Khalil Amany A. S.

Autex Research Journal

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2021

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Vol. 21, no. 4

435--444

EN

Compression therapy using bandages or socks is the most common treatment for venous leg ulcers and edema. This article aims to compare the compression between long- and short-stretch bandages (LSB and SSB, respectively). Load-elongation curves, cyclic loading, and elastic recovery are investigated for both Cotton/Polyamide/Polyurethane and 100% bleached cotton bandages as LSB and SSB, respectively. Static (resting) and dynamic (working) pressures are measured on seven male legs, 31 ± 3.6 years old, using both two and three layers bandaging. Picopress pressure tests are performed on the ankle and mid-calf positions at gradual decreasing compression from the ankle to the knee. The deviation percentage between the experimental results by Picopress and theoretical calculations using Laplace's law and Al-Khaburi equations is compared. LSB recovered approximately 99% of its original length after stress-relaxation whereas SSB recovered only 93% of its original length after 5 days of cyclic load-relaxation. Moreover, SSB lost approximately 28.6% of its activity after wearing on the human leg for 5 days.

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Komputerowo wspomagane wytwarzanie wyrobów uciskowych do rehabilitacji blizn pooparzeniowych i pooperacyjnych

Karpiuk Michał, Malik Maciej, Przytocka Magdalena, Czajkowska-Sabat Katarzyna, Sujka Witold

Mechanik

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2019

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R. 92, nr 1

55--57

PL

W artykule opisano wdrożoną w firmie Tricomed S.A., wspomaganą komputerowo metodę wytwarzania opasek uciskowych, przeznaczonych do rehabilitacji blizn pooparzeniowych i pooperacyjnych. Etapy procesu technologicznego obejmują: skanowanie 3D, pobieranie parametrów sterujących autogenerującym szablonem CAD z pliku STL, przeliczenie wartości parametrów sterujących w zależności od stopnia kompresji i rodzaju dzianiny, generowanie plików DXF, będących daną wejściową dla maszyny tnącej wykroje, oraz szycie.

EN

The article describes a computer-aided manufacturing of compression garments used for rehabilitation of burn and post-operative scars implemented in Tricomed S.A company. Steps of manufacturing processes include 3D scanning, obtaining control parameters for a self-generating CAD templates from STL file, conversion control parameters depending on the degree of compression and type of knitwear, generating DXF files for the cutting machine, sewing.

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Badanie efektu hemodynamicznego i cieplnego terapii kompresyjnej z wykorzystaniem bandaży uciskowych - doniesienie wstępne

Taradaj J., Halski T., Żurek G., Dymarek R., Pilok K., Treder K., Bąkowska M., Bajowska J.

Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna

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2007

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Vol. 13, nr 3

222-224

PL

Celem pracy było zbadanie efektu hemodynamicznego i cieplnego terapii kompresyjnej z wykorzystaniem bandaży elastycznych. Do badań zakwalifikowano 42 osoby, które poddano działaniu terapii kompresyjnej z użyciem opasek Sigvaris o krótkim i stałym naciągu. Każdej osobie zakładano dwa bandaże na podudzie na godzinę. Oceniano, w jakim stopniu terapia kompresyjna powoduje zmianę wskaźnika kostka-ramię. Określano również zmianę prędkości przepływu krwi w tętnicy piszczelowej tylnej i grzbietowej stopy. Badano wpływ terapii kompresyjnej na efekt cieplny w obrębie podudzia. Po zakończeniu badań stwierdzono istotnie statystyczną regulację wskaźnika kostka-ramię oraz przyspieszenie przepływu krwi tętniczej. Zanotowano również znamienny efekt cieplny pod wpływem zastosowanych bandaży uciskowych. Wydaje się, że terapia kompresyjna z wykorzystaniem bandaży uciskowych prowadzi do korzystnych zmian hemodynamicznych i cieplnych, co stanowi podstawę leczenia w przypadkach przewlekłej niewydolności żylnej.

EN

The objective of this paper was to assess the haemodynamic and thermal effects of the compression therapy with elastic bandages. The 42 patients were treated with two Sigvaris bandages applied on a lower leg for 1 hour. The goal of this study was to estimate the influence of the compression therapy on the ankle - brachial index and blood flow in tibial posterior and pedis dorsal arteries. The thermal effect after compression therapy was evaluated, as well. Statistically significant regulation of ankle - brachial index and increase of arterial blood flow, were observed. The temperature increase in examined leg was stated, too. It seems that compression therapy leads to positive haemodynamic and thermal changes, beneficial for efficient treatment of chronic venous insufficiency.