CA2378044A1 - System and method of interrogating implanted passive resonant-circuit devices - Google Patents

System and method of interrogating implanted passive resonant-circuit devices Download PDF

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Publication number
CA2378044A1
CA2378044A1 CA002378044A CA2378044A CA2378044A1 CA 2378044 A1 CA2378044 A1 CA 2378044A1 CA 002378044 A CA002378044 A CA 002378044A CA 2378044 A CA2378044 A CA 2378044A CA 2378044 A1 CA2378044 A1 CA 2378044A1
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CA
Canada
Prior art keywords
interrogating
circuit devices
passive resonant
implanted passive
pulses
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.)
Granted
Application number
CA002378044A
Other languages
French (fr)
Other versions
CA2378044C (en
Inventor
Samuel R. Neff
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.)
Neuro Diagnostic Devices Inc
Original Assignee
Samuel R. Neff
Neff, Janine
Neuro Diagnostic Devices, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Samuel R. Neff, Neff, Janine, Neuro Diagnostic Devices, Inc. filed Critical Samuel R. Neff
Publication of CA2378044A1 publication Critical patent/CA2378044A1/en
Application granted granted Critical
Publication of CA2378044C publication Critical patent/CA2378044C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0031—Implanted circuitry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
    • A61B5/031—Intracranial pressure

Abstract

A system and method for interrogating implanted passive resonant circuits is described. The resonant frequency is detected by transmitting a train of short pulses and then listening between the pulses for output of the resonant circuit. With proper spacing between the pulses, a vastly improved signal-to-noise ratio is obtained.
CA002378044A 1999-07-14 2000-07-11 System and method of interrogating implanted passive resonant-circuit devices Expired - Fee Related CA2378044C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/354,385 US6165135A (en) 1999-07-14 1999-07-14 System and method of interrogating implanted passive resonant-circuit devices
US09/354,385 1999-07-14
PCT/US2000/018824 WO2001005302A1 (en) 1999-07-14 2000-07-11 System and method of interrogating implanted passive resonant-circuit devices

Publications (2)

Publication Number Publication Date
CA2378044A1 true CA2378044A1 (en) 2001-01-25
CA2378044C CA2378044C (en) 2006-05-02

Family

ID=23393096

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002378044A Expired - Fee Related CA2378044C (en) 1999-07-14 2000-07-11 System and method of interrogating implanted passive resonant-circuit devices

Country Status (7)

Country Link
US (1) US6165135A (en)
EP (1) EP1202666B1 (en)
AT (1) ATE287238T1 (en)
AU (1) AU772092B2 (en)
CA (1) CA2378044C (en)
DE (1) DE60017571T2 (en)
WO (1) WO2001005302A1 (en)

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CA2621799C (en) 2005-09-06 2013-07-02 Cardiomems, Inc. Preventing false locks in a system that communicates with an implanted wireless sensor
EP1993436B1 (en) 2006-03-14 2014-06-11 CardioMems, Inc. Communicating with an implanted wireless sensor
US20070236213A1 (en) * 2006-03-30 2007-10-11 Paden Bradley E Telemetry method and apparatus using magnetically-driven mems resonant structure
US8473069B2 (en) 2008-02-28 2013-06-25 Proteus Digital Health, Inc. Integrated circuit implementation and fault control system, device, and method
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US8412347B2 (en) * 2009-04-29 2013-04-02 Proteus Digital Health, Inc. Methods and apparatus for leads for implantable devices
US8786049B2 (en) 2009-07-23 2014-07-22 Proteus Digital Health, Inc. Solid-state thin-film capacitor
US8669770B2 (en) * 2009-11-16 2014-03-11 Cardiomems, Inc. Selectively actuating wireless, passive implantable sensor
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Also Published As

Publication number Publication date
WO2001005302A1 (en) 2001-01-25
DE60017571D1 (en) 2005-02-24
ATE287238T1 (en) 2005-02-15
AU772092B2 (en) 2004-04-08
CA2378044C (en) 2006-05-02
EP1202666A1 (en) 2002-05-08
US6165135A (en) 2000-12-26
EP1202666B1 (en) 2005-01-19
AU5926600A (en) 2001-02-05
DE60017571T2 (en) 2006-03-30

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