Project Overview

Gradient compression stockings are widely used for the primary prevention of venothromboembolism (VTE). They are used in patients with prolonged immobilization due to surgical or medical illness, in patients with edema, or in the prevention of post-thrombotic syndrome. Due to the shorter duration of hospitalization the risk of VTE often extends into the post-hospitalization period thus necessitating the continued use of these stockings. One of the major limitations which restrict the use of the stocking, particular in the elderly, or those with restricted mobility, is the difficulty of putting the stocking on and taking them off. Several devices have been developed to overcome these shortcomings including Doff and Donner, custom hose with zipper, hose butler (donning cage), rubber gloves, special drying powder. All of these devices are operator dependent and thus have limitations regarding their use.

Compression stockings are made from one or more materials including elastane, microfiber, polyamide, cotton, nylon or synthetic spandex, e.g., Lycra. By combining different fibers and by adjusting the speed and/or tension of the knitting and, of course, by varying the concentration of Lycra fiber in the fabric, diverse finishes (e.g. in terms of elasticity or softness) can be achieved.

This project investigates methods for improving the design of the stocking to overcome the difficulty of applying and removing the stockings. Concepts may include opening and folding the stocking over the extremity with ends abutted together using magnetics, vacuum sealer device, fasteners (e.g., plastic or Velcro) or other clips interwoven in the fabric. Thus, additional materials may need to be assimilated in the current design and/or alternative polymers may need to be explored to innovatively modify the design.




References
Mosti G, Partsch H. Compression stockings with a negative pressure gradient have a more pronounced effect on venous pumping function than graduated elastic compression stockings. Eur J Vasc Endovasc Surg. 2011 Aug;42(2):261-6. doi: 10.1016/j.ejvs.2011.04.023. Epub 2011 May 25.

Reich-Schupke S, Gahr M, Altmeyer P, Stücker Resting pressure exerted by round knitted moderate-compression stockings on the lower leg in clinical practice--results of an experimental study. Dermatol Surg. 2009 Dec;35(12):1989-97. doi: 10.1111/j.1524-4725.2009.01318.x.

Liu R, Lao TT, Kwok YL, Li Y, Ying MT.Effects of graduated compression stockings with different pressure profiles on lower-limb venous structures and haemodynamics.Adv Ther. 2008 May;25(5):465-78. doi: 10.1007/s12325-008-0058-2.

Team Picture

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Contact Information

Team Members

• Michael Martinez - Team Leader
• Daniel Grieshop - Communicator
• Kevin Wreksoatmodjo - BSAC
• Crystal Jimenez - BWIG
• Ryan Lane - BPAG

Advisor and Client

• Prof. Paul Thompson - Advisor
• Dr. Steven Yale - Client
• Michelle Wellsandt - Alternate Contact