Influence of Tensile Stress on Woven Compression Bandage Structure and Porosity

Mansoor

et al. 2022

Autex Research Journal

The objective of this paper is to report a study on the prediction of the steady-state thermal resistance of woven compression bandage (WCB) by using three different mathematical models. The experimental samples of WCB were 100% cotton, cotton–polyamide–polyurethane, and viscose–polyurethane. The bandage samples were evaluated at extensions ranging at 10–100%, with two- and three-layer bandaging techniques. Experimental thermal resistance was measured by thermal foot manikin (TFM) and ALAMBETA testing devices. The obtained results by TFM and ALAMBETA were validated and compared with the theoretical models (Maxwell–Eucken2, Schuhmeister, and Militky), and a reasonable correlation of approximately 78%, 92%, and 93% for ALAMBETA and 75%, 82%, and 83% for TFM, respectively, was observed.

Section: Factors Affecting Testing Of Thermal Resistance On Thermal Fmentioning

confidence: 99%

Theoretical and Experimental Evaluation of Thermal Resistance for Compression Bandages

Mansoor

et al. 2022

Autex Research Journal

“…The WCB pressure was measured using the Microlab PicoPress M-700 at the ankle and mid-calf positions. 32…”

Section: Experimental Workmentioning

confidence: 99%

“…The WCB pressure was measured using the Microlab PicoPress M-700 at the ankle and mid-calf positions. 32 The compression of living tissue using textile bandages is only estimated based on the personal experience of the bandage applicator. Based on the evaluation of deformation during the bandage application, it is possible to give the patient, nurse, or any other user accurate remarks to adjust the applied compression to the body part through the innovated colored WCB, see Figure 4.…”

Section: Analysis Of the Mechanical Properties Of The Warp Yarns And Wcbmentioning

confidence: 99%

“…With a short-stretch CB, the muscle contraction causes an intermittent narrowing of the veins, a reduction of venous reflux, and thus an improvement in the venous pump function when the patient is walking. Longstretch CB is suitable for uncomplicated varicose veins or athletic performance, such cases require medium pressure (30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40). 12 In order to design effective compression bandages, researchers have attempted to describe the interface pressure applied by these bandages using mathematical models.…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial easy adjustable woven compression bandage for venous leg ulcers

Khan

Journal of Industrial Textiles

et al. 2022

The proposed study aims in first part to discuss the structure and behavior of short-stretch cotton woven compression bandage (WCB), and in second part the production and properties of multifunctional WCB. The bandage includes an integrated tension sensor, which causes a change in the spacing of colored threads during its deformation. The motivation of this research was to investigate the optimum techniques for compression therapy using a modified construction of cotton WCB as a tensiometer. The aim of second part is focused on an industrial product which has the easy adjustable compression and antibacterial properties. Multifunctional WCB can be produced by two methods, the first was using highly twisted warp yarns (ply twist 1800 to 2200 twist/m) and the weft yarns will be treated with silver Nano-particles (NPs). The second method was post-treatment of the WCB with three concentrations of zinc oxide NPs 1–3 % in powder form with 15 g/L acrylic binder. Silver NPs coated yarns showed a comparable antibacterial activity on both tested bacterial strains ( Escherichia coli and Staphylococcus aureus) using quantitative and qualitative test methods. The WCB tested samples achieved 95–99% bacteria reduction, the nanoparticles size and its distribution were confirmed by the Zetasizer Nano, the scanning electron microscopy (SEM), and the energy dispersive X-ray spectroscopy (EDXS). The practical bandage pressure by PicoPress showed significant deviations compared with theoretical pressure calculated by Laplace’s equation ranges ±0.68 to ±15.64% especially at the highest extension levels.

“…Medium pressure of 35.19 mmHg at ankle position can be achieved at 9.79N using two layers of cotton bandage while high pressure of 68.38 mmHg at 13.85N can be achieved through three layers. On the other hand, CO-PA-PU can achieve 32.15 mmHg at 8.64N and 71.69 mmHg at 14.23N using two and three layers, respectively[1,33].…”

mentioning

confidence: 99%

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

Bílá

et al. 2020

Autex Research Journal

Self Cite

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.