Design and evaluation of a device for measurement of interface pressure |
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| Institution: | 1. Thermographic and Blood Flow Unit, Department of Medical Electronics, St Bartholomew''s Hospital, West Smithfield, London, EC1A 7BE UK;2. Leg Ulcer Clinic, St Leonard''s, Nuttall Street, London, N1, UK;1. EA 2992, Vascular Medicine Unit, CIC1001 Inserm, CHU de Montpellier, université Montpellier 1, 34295 cedex 5 Montpellier, France;2. Inserm, CIE3, unité de recherche clinique, innovation et pharmacologie, CHU de Saint-Étienne, 42055 Saint-Étienne, France;3. Department of Lymphology, Cognacq-Jay Hospital, 75015 Paris, France;4. Université François-Rabelais, 10, boulevard Tonnellé, BP 3223, 37032 Tours cedex 1, France;5. Service de médecine interne, Hôtel-Dieu, 44093 Nantes cedex 01, France;6. EA 3065, université Jean-Monnet, 42023 Saint-Étienne, France;7. UMR 5558, CNRS Villeurbanne, université Claude-Bernard – Lyon 1, 69373 Lyon cedex 08, France;1. Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Israel;2. Plastic Surgery Unit, Hillel Yaffe Medical Center, Hadera, Israel;1. Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan;2. Musculoskeletal Oncology Service, Osaka International Cancer Institute, 3-1-69 Otemae, Chuuou, Osaka 541-8567, Japan;3. Department of Orthopaedic Surgery, Ashiya Municipal Hospital, 39-1 Asahigaoka, Ashiya City, Hyogo 659-8502, Japan;1. Division of Cardiovascular Diseases, Einstein Medical Center, Philadelphia, Pennsylvania;2. Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota;3. Dalhousie University, Halifax, Nova Scotia, Canada;4. Kawasaki Medical School, Kurashiki, Japan;1. Vasculab Foundation ONLUS, Via Francesco Cilea, 280, 80127 Napoli, Italy;2. Private Practice, Firenze, Italy;3. Private Practice, Grassina, Italy |
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| Abstract: | An electropneumatic device has been designed to measure the interface pressure profile under compression bandages. The device uses commercially available pneumatic sensors (Talley Group Ltd, SJ235/3) and measures interface pressure at up to eight sites simultaneously along the lower limb, with an accuracy of ± 3 mmHg. Measurements can be made in one of two modes: continuously at a rate of up to three samples per second with the results output to a suitable display device, or single measurements of interface pressure can be made and displayed on a digital display incorporated in the device. This enables the monitoring and recording of interface pressure under compression bandages during either ambulation or passive recumbency. The electropneumatic system is described together with its following characteristics: the hysteresis of the Talley pneumatic sensors, the accuracy of pressure measurement and the maximum achievable sample rate. Dynamic measurements in a single normal volunteer are shown. |
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