CA2454103C - Circuit amplificateur de signal greffable pour l'enregistrement electron eurographique - Google Patents

Circuit amplificateur de signal greffable pour l'enregistrement electron eurographique Download PDF

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Publication number
CA2454103C
CA2454103C CA002454103A CA2454103A CA2454103C CA 2454103 C CA2454103 C CA 2454103C CA 002454103 A CA002454103 A CA 002454103A CA 2454103 A CA2454103 A CA 2454103A CA 2454103 C CA2454103 C CA 2454103C
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CA
Canada
Prior art keywords
amplifying circuit
implantable
nerve
circuit
preamplifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002454103A
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English (en)
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CA2454103A1 (fr
Inventor
Marcelo Daniel Baru Fassio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neurostream Technologies GP
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Neurostream Technologies GP
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Filing date
Publication date
Priority claimed from US09/988,112 external-priority patent/US6996435B2/en
Application filed by Neurostream Technologies GP filed Critical Neurostream Technologies GP
Publication of CA2454103A1 publication Critical patent/CA2454103A1/fr
Application granted granted Critical
Publication of CA2454103C publication Critical patent/CA2454103C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

L'invention concerne un circuit amplificateur de signal greffable au niveau microvolt qui peut être utilisé pour résoudre des signaux électriques générés par les nerfs en présence de signaux de plus grande amplitude générés par les muscles, le coeur ou des sources de bruit externes. Le circuit comporte un préamplificateur à faible bruit et à rapport de réjection en mode commun (CMRR) élevé, suivi d'une cascade d'étapes, qui assure le filtrage et l'amplification ultérieure du signal neutre. Le circuit amplificateur passe-bande peut également présenter un rapport de réjection d'alimentation (PSRR) élevé. Les données de sortie font l'objet d'une compensation de décalage par une étape de restauration du CC. Le circuit de protection nerveuse minimise ou bloque le débit du CC qui passe à travers les terminaux d'entrée en cas de défaillance des semi-conducteurs dans le préamplificateur. Il est possible d'intégrer le circuit à un circuit monolithique commun avec un circuit d'asservissement pour commander les dispositifs de simulation électrique fonctionnelle (FES).
CA002454103A 2001-11-19 2002-04-19 Circuit amplificateur de signal greffable pour l'enregistrement electron eurographique Expired - Fee Related CA2454103C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/988,112 US6996435B2 (en) 2001-11-19 2001-11-19 Implantable signal amplifying circuit for electroneurographic recording
US09/988,112 2001-11-19
CA002382500A CA2382500C (fr) 2001-11-19 2002-04-19 Circuit amplificateur de signal greffable pour l'enregistrement electroneurographique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002382500A Division CA2382500C (fr) 2001-11-19 2002-04-19 Circuit amplificateur de signal greffable pour l'enregistrement electroneurographique

Publications (2)

Publication Number Publication Date
CA2454103A1 CA2454103A1 (fr) 2002-10-19
CA2454103C true CA2454103C (fr) 2010-03-02

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CA002454103A Expired - Fee Related CA2454103C (fr) 2001-11-19 2002-04-19 Circuit amplificateur de signal greffable pour l'enregistrement electron eurographique

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CA (1) CA2454103C (fr)

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Publication number Publication date
CA2454103A1 (fr) 2002-10-19

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