IT1244639B - Stimolatore cardiaco sensibile alla frequenza. - Google Patents

Stimolatore cardiaco sensibile alla frequenza.

Info

Publication number
IT1244639B
IT1244639B ITRM910010A ITRM910010A IT1244639B IT 1244639 B IT1244639 B IT 1244639B IT RM910010 A ITRM910010 A IT RM910010A IT RM910010 A ITRM910010 A IT RM910010A IT 1244639 B IT1244639 B IT 1244639B
Authority
IT
Italy
Prior art keywords
stimulator
frequency
electrode
control
patient
Prior art date
Application number
ITRM910010A
Other languages
English (en)
Inventor
Gianni Plicchi
Original Assignee
Medtronic Inc Soc Del Minnesot
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 Medtronic Inc Soc Del Minnesot filed Critical Medtronic Inc Soc Del Minnesot
Priority to ITRM910010A priority Critical patent/IT1244639B/it
Publication of ITRM910010A0 publication Critical patent/ITRM910010A0/it
Priority to PCT/US1991/009528 priority patent/WO1992011901A1/en
Priority to AU12067/92A priority patent/AU1206792A/en
Publication of ITRM910010A1 publication Critical patent/ITRM910010A1/it
Application granted granted Critical
Publication of IT1244639B publication Critical patent/IT1244639B/it

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0535—Impedance plethysmography
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physiology (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Electrotherapy Devices (AREA)

Abstract

Oggetto dell'invenzione è uno stimolatore cardiaco impiantabile sensibile alla frequenza per stimolare organi o tessuti viventi di un paziente. Lo stimolatore comprende un circuito di controllo per generare impulsi destinati a controllare l'attività cardiaca ad una frequenza che varia fra un predeterminato limite superiore ed un predeterminato limite inferiore, come funzione della domanda metabolica del paziente.Lo stimolatore inoltre comprende un singolo elettrodo per la rilevazione dei parametri fisiologici del paziente e per generare segnali indicativi di essi. Un dispositivo di controllo dello stimolatore risponde ai segnali forniti dall'elettrodo per generare impulsi di controllo destinati a controllare l'attività cardiaca alla frequenza variabile fra una frequenza superiore ed una frequenza inferiore. Il dispositivo di controllo dello stimolatore è collocato all'interno di un alloggiamento e l'elettrodo è fisicamente accoppiato o collegato all'alloggiamento. L'elettrodo presenta un'area superficiale che è sufficientemente grande per ottimizzare la sensibilità dello stimolatore.
ITRM910010A 1991-01-09 1991-01-09 Stimolatore cardiaco sensibile alla frequenza. IT1244639B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITRM910010A IT1244639B (it) 1991-01-09 1991-01-09 Stimolatore cardiaco sensibile alla frequenza.
PCT/US1991/009528 WO1992011901A1 (en) 1991-01-09 1992-01-02 Rate responsive pacer
AU12067/92A AU1206792A (en) 1991-01-09 1992-01-02 Rate responsive pacer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITRM910010A IT1244639B (it) 1991-01-09 1991-01-09 Stimolatore cardiaco sensibile alla frequenza.

Publications (3)

Publication Number Publication Date
ITRM910010A0 ITRM910010A0 (it) 1991-01-09
ITRM910010A1 ITRM910010A1 (it) 1992-07-09
IT1244639B true IT1244639B (it) 1994-08-08

Family

ID=11399717

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM910010A IT1244639B (it) 1991-01-09 1991-01-09 Stimolatore cardiaco sensibile alla frequenza.

Country Status (3)

Country Link
AU (1) AU1206792A (it)
IT (1) IT1244639B (it)
WO (1) WO1992011901A1 (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231601A1 (de) * 1992-09-17 1994-03-24 Biotronik Mess & Therapieg Anordnung zur Steuerung eines Herzschrittmachers
US5282839A (en) * 1992-12-14 1994-02-01 Medtronic, Inc. Rate responsive cardiac pacemaker and method for providing an optimized pacing rate which varies with a patient's physiologic demand

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4310000A (en) * 1980-01-23 1982-01-12 Medtronic, Inc. Implantable pulse generator having separate passive sensing reference electrode
US4387717A (en) * 1980-10-03 1983-06-14 Research Corporation Pacer internal cardiac electrogram sensing system
DE3483882D1 (de) * 1984-02-07 1991-02-07 Schiapparelli Medtronic S P A Herzschrittmacher, abhaengig vom atmungsumfang pro zeiteinheit.
US4722342A (en) * 1986-06-16 1988-02-02 Siemens Aktiengesellschaft Cardiac pacer for pacing a human heart and pacing method

Also Published As

Publication number Publication date
ITRM910010A0 (it) 1991-01-09
AU1206792A (en) 1992-08-17
WO1992011901A1 (en) 1992-07-23
ITRM910010A1 (it) 1992-07-09

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960129