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2 109 482

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IPC

(21) (22)

Application

95100822/14, 1995-01-13

(22)

Actual filing date

1995-01-13

(45)

Published

1998-04-27

(72)

Inventor

Gurevich E.Ja.Bereznaja I.Ja.Strakhovich Eh.V.Ampilova N.B.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju Inzhiniring"

METHOD AND DEVICE FOR DIAGNOSING AVERAGE INDUCED BRAIN POTENTIAL Russian patent published in 1998 - IPC

Abstract RU 2109482 C1

FIELD: medicine. SUBSTANCE: method involves acting upon an object with short duration signal of known magnitude. Its maximum value is less than signal magnitude corresponding to pain syndrome. It is recorded during 500 ms beginning from the moment the signal is emitted as averaged analog/digital signal. Search area of P2, N2 components of long-latent induced potential is set within the interval from the moment the signal is emitted to 340 ms. Two time intervals are selected, maximum and minimum signal values are determined and absolute value of difference between the maximum and minimum signal values is calculated. The obtained absolute value of difference is compared to K value, where K is coefficient determined in experimental way. The value is used for making conclusions concerning the presence of long-latent induced brain potential. EFFECT: enhanced effectiveness in diagnosing vision, hearing and tactile sensation threshold. 12 cl, 7 dwg

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RU 2 109 482 C1

Authors

Gurevich E.Ja.

Bereznaja I.Ja.

Strakhovich Eh.V.

Ampilova N.B.

Dates

1998-04-27—Published

1995-01-13—Filed

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