Surgery – Truss – Pad
Patent
1995-06-07
1998-01-20
Jastrzab, Jeffrey R.
Surgery
Truss
Pad
128673, 128736, 128637, A61B 504
Patent
active
057092168
ABSTRACT:
An implantable device which acquires physiological data and status information. The physiological data is compressed, reducing the memory requirement of the implantable device and/or increasing the amount of data that can be stored. The compression technique uses variable resolution while maintaining desired accuracy. The physiological data, such as heart beat interval time, is converted into a digital value. The digital representation then is divided into sub-ranges, and various resolution values are assigned to each sub-range. Each resolution is selected to stay within the desired accuracy. The interval time is divided by the particular resolution to obtain a digital value for the interval time within that range. The digital value then is corrected based upon the sub-range to obtain the compressed encoded digital value, which can then be stored in memory together with other desired data.
REFERENCES:
patent: 4449536 (1984-05-01), Weaver
patent: 4567883 (1986-02-01), Langer et al.
patent: 4716903 (1988-01-01), Hansen et al.
patent: 4947858 (1990-08-01), Smith
patent: 5263486 (1993-11-01), Jeffreys
patent: 5354315 (1994-10-01), Armstrong
patent: 5398183 (1995-03-01), Elliott
Passariello, G., et al., "Arithmetic Coding for EDG Data Compression," Proceedings of the Computers in Cardiology Meeting, Sep. 23-26, 1991, Venice Italy, Institute of Electrical and Electronics Engineers, 1992 IEEE p. 593-596.
Tai, S.C., "SLOPE--a Real-time ECG Data Compressor," Medical & Biological Engineering & Computing,vol. 29, No. 2, Mar. 1, 1991, pp. 175-179.
Jun., L., "Full Use of Memory for 12bit ADC Data Acquisition," Electronic Engineering,vol. 63, No. 780, Dec. 1, 1991, p. 30.
Hsia, P-W, et al., "An Automated System for ST Segment and Arrhythmia Analysis in Exercise Radionuclide Ventriculography," IEEE Transactions on Biomedical Engineering, New York, NY, vol. BME-33, No. 6 (Jun. 1986), pp. 585-593.
Jenkins, J., et al., "Automated Arrhythmia Analysis Combined with ST Analysis for Exercise Monitoring," Proceedings of Computers in Cardiology, Sep. 8-11, 1985, Linkoping, Sweden, 1985 IEEE, IEEE Computer Society Press, New York, NY, pp. 229-232.
Dotsynsky, I.A., et al., "A Digital Heart-Ratemeter Using an E.P.R.O.M. Converter," Medical & Biological Engineering & Computing, vol. 18, No. 4 Jul. 1980, Stevenage, G.B., pp. 481-482.
Heim Michael F.
Jastrzab Jeffrey R.
Sulzer Intermedics Inc.
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