title: Sensors on instrumented socks for detection of lower leg edema--An in vitro study.
abstract: This paper presents the design, sensing principles and in vitro evaluation of a novel instrumented sock intended for prediction and prevention of acute decompensated heart failure. The sock contains a drift-free ankle size sensor and a leg tissue elasticity sensor. Both sensors are inexpensive and developed using innovative new sensing ideas. Preliminary tests with the sensor prototypes show promising results: The ankle size sensor is capable of measuring 1 mm changes in ankle diameter and the tissue elasticity sensor can detect 0.15 MPa differences in elasticity. A low-profile instrumented sock prototype with these two sensors has been successfully fabricated and will be evaluated in the future in an IRB-approved human study.
authors.forename: Song
authors.initials: S
authors.lastname: Zhang
authors.forename: Rajesh
authors.initials: R
authors.lastname: Rajamani
mesh_terms: D000842:Ankle / Q000502:physiology; D000843:Ankle Joint; D003020:Clothing; D004487:Edema / Q000175:diagnosis*; D004548:Elasticity; D060733:Electromagnetic Radiation; D004867:Equipment Design; D006333:Heart Failure / Q000473:pathology*; D006801:Humans; D007866:Leg / Q000473:pathology*; D008280:Magnetics; D018670:Monitoring, Ambulatory / Q000295:instrumentation / Q000379:methods*; D055095:Optics and Photonics; D010969:Plastics; D011312:Pressure; D015203:Reproducibility of Results; D012408:Rubber
chemical_list: D010969:Plastics; D012408:Rubber