ES2175126T3 - Metodo y dispositivo para determinar la posicion de un marcador en una cavidad organica. - Google Patents

Metodo y dispositivo para determinar la posicion de un marcador en una cavidad organica.

Info

Publication number
ES2175126T3
ES2175126T3 ES96931761T ES96931761T ES2175126T3 ES 2175126 T3 ES2175126 T3 ES 2175126T3 ES 96931761 T ES96931761 T ES 96931761T ES 96931761 T ES96931761 T ES 96931761T ES 2175126 T3 ES2175126 T3 ES 2175126T3
Authority
ES
Spain
Prior art keywords
magnetic field
marker
coil
field sensors
component
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 - Lifetime
Application number
ES96931761T
Other languages
English (en)
Inventor
Wilfried Andra
Klaus Eitner
Rudolf Hergt
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.)
Institut fuer Physikalische Hochtechnologie eV
Carl Zeiss Meditec AG
Original Assignee
Institut fuer Physikalische Hochtechnologie eV
Asclepion Meditec AG
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 Institut fuer Physikalische Hochtechnologie eV, Asclepion Meditec AG filed Critical Institut fuer Physikalische Hochtechnologie eV
Application granted granted Critical
Publication of ES2175126T3 publication Critical patent/ES2175126T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/06Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/06Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A61B5/061Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body
    • A61B5/062Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body using magnetic field
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/07Endoradiosondes
    • A61B5/073Intestinal transmitters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices

Abstract

LA INVENCION SE REFIERE A UN METODO Y UNA DISPOSICION PARA DETERMINAR LA POSICION DE UN MARCADOR EN UNA CAVIDAD ORGANICA, EN PARTICULAR PARA ESTABLECER LAS VELOCIDADES DE PASO LOCAL DENTRO DEL MARCO DEL DIAGNOSTICO MEDICO DEL TRACTO ESTOMACALINTESTINAL. LA FINALIDAD DE LA INVENCION ES DAR UNA SOLUCION QUE ASEGURE UNA PRECISION DE DETERMINACION DE POSICION SUPERIOR A 1 CM EN LAS TRES DIRECCIONES DE COORDENADAS Y PERMITA TIEMPOS DE DETERMINACION DE POSICION DE 10 SEGUNDOS O MENOS EN CADA CASO. CON ARREGLO A LA INVENCION, ESTA FINALIDAD SE CONSIGUE EN CUANTO QUE UNA CORRIENTE, CUYO SIGNO CAMBIA EN CADA CASO ENTRE DOS IMPULSOS DE CORRIENTE, ACTUA DE MANERA PULSATORIA SOBRE AL MENOS UNA BOBINA EN UN INTERVALO DE TIEMPO, CUANDO EL CAMPO MAGNETICO PRIMARIO DE LA BOBINA ASI PRODUCIDO HA DESCENDIDO A VALORES SUFICIENTEMENTE BAJOS. EL CAMPO MAGNETICO SECUNDARIO GENERADO POR UN MARCADOR SE MIDE POR SEPARADO AL MENOS UNA VEZ POR SENSORES DE CAMPO MAGNETICO ANISOTROPICOS PARALELA Y PERPENDICULARMENTE ALEJE DE LA BOBINA. LA DISPOSICION DE BOBINAS SE DESPLAZA EN RELACION CON EL MARCADOR HASTA QUE LOS SENSORES DE CAMPO MAGNETICO UTILIZADOS PARA DETERMINAR EL COMPONENTE RADIAL DEL CAMPO MAGNETICO SECUNDARIO DEL MARCADOR SUMINISTRA UNA SEÑAL CERO Y LA POSICION ASOCIADA DEL EJE DE LA BOBINA Y LOS VALORES MEDIDOS ASOCIADOS SUMINISTRADOS POR LOS SENSORES DE CAMPO MAGNETICO UTILIZADOS PARA DETECTAR EL COMPONENTE DE CAMPO MAGNETICO SECUNDARIO DEL MARCADOR, EL CUAL COMPONENTE CORRE EN PARALELO AL EJE DE LA BOBINA, SE ALMACENAN Y PASAN A UNA PANTALLA.
ES96931761T 1995-09-05 1996-09-03 Metodo y dispositivo para determinar la posicion de un marcador en una cavidad organica. Expired - Lifetime ES2175126T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19532676A DE19532676C1 (de) 1995-09-05 1995-09-05 Anordnung zur Bestimmung der Position eines Markers in einem Hohlraum innerhalb des Organismus eines Lebewesens

Publications (1)

Publication Number Publication Date
ES2175126T3 true ES2175126T3 (es) 2002-11-16

Family

ID=7771268

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96931761T Expired - Lifetime ES2175126T3 (es) 1995-09-05 1996-09-03 Metodo y dispositivo para determinar la posicion de un marcador en una cavidad organica.

Country Status (7)

Country Link
US (1) US6082366A (es)
EP (1) EP0848832B1 (es)
JP (1) JPH11512007A (es)
CN (1) CN1154854C (es)
DE (1) DE19532676C1 (es)
ES (1) ES2175126T3 (es)
WO (1) WO1997009640A1 (es)

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CN109922727B (zh) * 2016-09-09 2024-03-19 森尼布鲁克研究所 用于磁性隐匿病变定位和成像的系统和方法
JP2020508436A (ja) 2016-12-07 2020-03-19 プロジェニティ, インコーポレイテッド 胃腸管の検出方法、装置およびシステム
CA3055762A1 (en) 2017-03-31 2018-10-04 Progenity, Inc. Localization systems and methods for an ingestible device
CN112867443A (zh) 2018-10-16 2021-05-28 巴德阿克塞斯系统股份有限公司 用于建立电连接的安全装备连接系统及其方法
NL2022093B1 (en) * 2018-11-29 2020-06-26 Sirius Medical Systems B V The present disclosure relates to a magnetic field probe for determining a disposition of an implantable magnetic marker, a detection unit comprising the probe and a method of detecting the disposition of an implantable magnetic marker.
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EP0848832B1 (de) 2002-03-13
WO1997009640A1 (de) 1997-03-13
DE19532676C1 (de) 1997-05-07
EP0848832A1 (de) 1998-06-24
US6082366A (en) 2000-07-04
CN1154854C (zh) 2004-06-23

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