In-shoe foot pressure measurement system utilising piezoelectric film transducers

THE INITIAL aim of this research was to design and develop an in-shoe pressure measurement system for use in a clinical environment, to measure absolute pressure values at discrete predefined anatomical sites to within 10%. A major part of the work was to design and develop the piezoelectric copolymer transducers used in the system (NEVILL, 1991). This work introduces the transducer design and the development of the electronic and data acquisition systems.

[1]  Willis J. Tompkins,et al.  Piezoelectric sensor for foot pressure management , 1989, Images of the Twenty-First Century. Proceedings of the Annual International Engineering in Medicine and Biology Society,.

[2]  T. Gross,et al.  Measurement of discrete vertical in-shoe stress with piezoelectric transducers. , 1988, Journal of biomedical engineering.

[3]  J. Nye Physical Properties of Crystals: Their Representation by Tensors and Matrices , 1957 .

[4]  Robert Bruce Lindsay,et al.  Physical Properties of Crystals , 1957 .

[5]  E. L. Nix A direct method for measurement of the film-thickness piezoelectric coefficient of polyvinylidene fluoride , 1986 .

[6]  R. W. Soames,et al.  Measurement of pressure under the foot during function , 1982, Medical and Biological Engineering and Computing.

[7]  J. Hughes,et al.  Foot pressure measurement: a review of clinical findings. , 1986, Journal of biomedical engineering.

[8]  M Lord,et al.  Foot pressure measurement: a review of methodology. , 1981, Journal of biomedical engineering.

[9]  R. P. Betts,et al.  Static and dynamic foot-pressure measurements in clinical orthopaedics , 1980, Medical and Biological Engineering and Computing.

[10]  Leslie Klenerman,et al.  A Clinician's View of Foot Pressure: A Comparison of Three Different Methods of Measurement , 1987, Foot & ankle.

[11]  J P Pollard,et al.  Forces under the foot. , 1983, Journal of biomedical engineering.

[12]  Gerald F. Harris,et al.  Pressure distribution beneath sensate and insensate feet , 1989, Images of the Twenty-First Century. Proceedings of the Annual International Engineering in Medicine and Biology Society,.

[13]  T. E. Clarke 1: 00 p.m.: PRESSURE DISTRIBUTION UNDER THE FOOT DURING BAREFOOT WALKING , 1981 .

[14]  M. Dhanendran,et al.  Vertical forces acting on the feet of diabetic patients with neuropathic ulceration , 1981, The British journal of surgery.

[15]  M. J. Potter,et al.  In-shoe step-to-step pressure variations , 1994 .

[16]  W. Hutton,et al.  Forces under the foot. , 1973, The Journal of bone and joint surgery. British volume.

[17]  Nevill Aj A foot pressure measurement system utilising PVdF and copolymer piezoelectric transducers. , 1991 .

[18]  R. P. Betts,et al.  Microprocessor-based image processing system for dynamic foot pressure studies , 2006, Medical and Biological Engineering and Computing.

[19]  M Lord,et al.  Method for in-shoe shear stress measurement. , 1992, Journal of biomedical engineering.

[20]  I A Stokes,et al.  Forces under the hallux valgus foot before and after surgery. , 1979, Clinical orthopaedics and related research.

[21]  W. Hutton,et al.  The mechanics of normal and hallux valgus feet--a quantitative study. , 1981, Clinical orthopaedics and related research.

[22]  E M Hennig,et al.  A piezoelectric method of measuring the vertical contact stress beneath the human foot. , 1982, Journal of biomedical engineering.

[23]  D. Grieve,et al.  Pressures under normal feet in standing and walking as measured by foil pedobarography. , 1984, Annals of the rheumatic diseases.

[24]  J W Tappin,et al.  Method of measuring 'shearing' forces on the sole of the foot , 1980 .

[25]  P. Dario,et al.  Multisensor piezoelectric polymer insole for pedobarography , 1984 .