ES2069529T3 - Metodo y aparato biomedicos para controlar la aplicacion de una terapia a un paciente en respuesta a cambios de condiciones fisiologicas. - Google Patents

Metodo y aparato biomedicos para controlar la aplicacion de una terapia a un paciente en respuesta a cambios de condiciones fisiologicas.

Info

Publication number
ES2069529T3
ES2069529T3 ES87303932T ES87303932T ES2069529T3 ES 2069529 T3 ES2069529 T3 ES 2069529T3 ES 87303932 T ES87303932 T ES 87303932T ES 87303932 T ES87303932 T ES 87303932T ES 2069529 T3 ES2069529 T3 ES 2069529T3
Authority
ES
Spain
Prior art keywords
volume
beat
heart
pulse generator
signal
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
ES87303932T
Other languages
English (en)
Inventor
Rodney W Salo
Brian D Pederson
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.)
Cardiac Pacemakers Inc
Original Assignee
Cardiac Pacemakers 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 Cardiac Pacemakers Inc filed Critical Cardiac Pacemakers Inc
Application granted granted Critical
Publication of ES2069529T3 publication Critical patent/ES2069529T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
    • A61N1/36514—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure
    • A61N1/36521—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure the parameter being derived from measurement of an electrical impedance

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Physiology (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrotherapy Devices (AREA)

Abstract

UN APARATO BIOMEDICO CAPAZ DE PERCIBIR CAMBIOS EN EL VOLUMEN VENTRICULAR DEL CORAZON O VOLUMEN DE LATIDO Y ENTONCES CAMBIAR EL FUNCIONAMIENTO DEL DISPOSITIVO EN UNA MANERA COMO UNA FUNCION DE VOLUMEN DE LATIDO. UNA SEÑAL (BAJO 5KHZ) DE FRECUENCIA BAJA RELATIVAMENTE ES APLICADA ENTRE LOS ELECTRODOS (12, 13) ESPACIADOS DISPUESTOS EN EL CORAZON Y LA ACCION DE LATIDO DEL CORAZON SIRVE PARA MODULAR ESTA SEÑAL DEBIDO A LOS CAMBIOS EN LA IMPEDANCIA QUE SE PERCIBEN ENTRE ESOS U OTROS ELEMENTOS DENTRO DEL CORAZON. LA SEÑAL PORTADORA MODULABLE ES ENTONCES PROCESADA PARA MOVER LA ONDA ENTONCES DEMODULADAPARA MOVER EL COMPONENTE DE LA FRECUENCIA PORTADORA DEJANDO LA ENVOLTURA QUE ES PROPORCIONAL AL VOLUMEN VENTRICULAR INSTANTANEO. ESTA SEÑAL DE ENVOLTURA ENTONCES CONTIENE EL VOLUMEN DE LATIDO Y LA INFORMACION DEL VOLUMEN VENTRICULAR QUE PUEDA SER USADA POR EL APARATO BIOMEDICO PARA VARIAS ESTOS PARAMETROS OPERANTES. POR EJEMPLO, UNA CORRIENTE PROPORCIONAL PARA CAMBIAR EL VOLUMEN DE LATIDO DEBE SER INYECTADA DENTRO DEL CIRCUITO DE TIEMPO DE UN GENERADOR (21) DE PULSO MARCAPASOS CARDIACO DEL TIPO DEMANDO COMO EL INTERVALO INTERPULSO DEL GENERADOR DE PULSO ES VACIADO EN FUNCION DEL VOLUMEN DE LATIDO.
ES87303932T 1987-05-01 1987-05-01 Metodo y aparato biomedicos para controlar la aplicacion de una terapia a un paciente en respuesta a cambios de condiciones fisiologicas. Expired - Lifetime ES2069529T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19870303932 EP0288630B1 (en) 1987-05-01 1987-05-01 Biomedical method and apparatus for controlling the administration of therapy to a patient in response to changes in physiologic demand

Publications (1)

Publication Number Publication Date
ES2069529T3 true ES2069529T3 (es) 1995-05-16

Family

ID=8197894

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87303932T Expired - Lifetime ES2069529T3 (es) 1987-05-01 1987-05-01 Metodo y aparato biomedicos para controlar la aplicacion de una terapia a un paciente en respuesta a cambios de condiciones fisiologicas.

Country Status (3)

Country Link
EP (1) EP0288630B1 (es)
DE (1) DE3750983T2 (es)
ES (1) ES2069529T3 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3732640C1 (de) * 1987-09-28 1989-05-18 Alt Eckhard Medizinisches Geraet zum Ermitteln von physiologischen Funktionsparametern
US5156147A (en) * 1991-02-05 1992-10-20 Cardiac Pacemakers, Inc. Variable rate pacemaker having upper rate limit governor based on hemodynamic performance
SE9602979D0 (sv) * 1996-08-14 1996-08-14 Pacesetter Ab Pacemaker
US8825158B2 (en) 2009-08-25 2014-09-02 Lamda Nu, Llc Method and apparatus for detection of lead conductor anomalies using dynamic electrical parameters
US9272150B2 (en) * 2012-06-01 2016-03-01 Lambda Nu Technology Llc Method for detecting and localizing insulation failures of implantable device leads
US8812103B2 (en) 2012-06-01 2014-08-19 Lamda Nu, Llc Method for detecting and treating insulation lead-to-housing failures
US9675799B2 (en) 2012-12-05 2017-06-13 Lambda Nu Technology Llc Method and apparatus for implantable cardiac lead integrity analysis
US10039919B2 (en) 2013-04-30 2018-08-07 Lambda Nu Technology Llc Methods and apparatus for detecting and localizing partial conductor failures of implantable device leads
US9486624B2 (en) 2013-06-13 2016-11-08 Lambda Nu Technology Llc Detection of implantable lead failures by differential EGM analysis
US10118031B2 (en) 2013-06-28 2018-11-06 Lambda Nu Technology Llc Method and apparatus for implantable cardiac lead integrity analysis
US9636500B2 (en) 2014-03-25 2017-05-02 Lambda Nu Technology Llc Active surveillance of implanted medical leads for lead integrity
US10252069B1 (en) 2015-11-19 2019-04-09 Lambda Nu Technology Llc Micro-charge ICD lead testing method and apparatus
US10543364B2 (en) 2017-04-07 2020-01-28 Lambda Nu Technology Llc Detection of lead electrode dislodgement using cavitary electrogram

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202340A (en) * 1975-09-30 1980-05-13 Mieczyslaw Mirowski Method and apparatus for monitoring heart activity, detecting abnormalities, and cardioverting a malfunctioning heart
US4291699A (en) * 1978-09-21 1981-09-29 Purdue Research Foundation Method of and apparatus for automatically detecting and treating ventricular fibrillation
US4303075A (en) * 1980-02-11 1981-12-01 Mieczyslaw Mirowski Method and apparatus for maximizing stroke volume through atrioventricular pacing using implanted cardioverter/pacer
US4686987A (en) * 1981-06-18 1987-08-18 Cardiac Pacemakers, Inc. Biomedical method and apparatus for controlling the administration of therapy to a patient in response to changes in physiologic demand
US4535774A (en) * 1983-06-30 1985-08-20 Medtronic, Inc. Stroke volume controlled pacer

Also Published As

Publication number Publication date
EP0288630A1 (en) 1988-11-02
DE3750983T2 (de) 1995-05-18
DE3750983D1 (de) 1995-02-23
EP0288630B1 (en) 1995-01-11

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