US3693625A - Heart stimulator and heart-powered energy supply therefor - Google Patents

Heart stimulator and heart-powered energy supply therefor Download PDF

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Publication number
US3693625A
US3693625A US33745A US3693625DA US3693625A US 3693625 A US3693625 A US 3693625A US 33745 A US33745 A US 33745A US 3693625D A US3693625D A US 3693625DA US 3693625 A US3693625 A US 3693625A
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United States
Prior art keywords
piston
heart
rotor
casing
movement
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Expired - Lifetime
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US33745A
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English (en)
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Michel Joseph Auphan
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US Philips Corp
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US Philips Corp
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Assigned to HONEYWELL B.V. AMSTERDAM,A SUBSIDIARY OF THE NETHERLANDS OF HONEYWELL INC. A DE CORP. reassignment HONEYWELL B.V. AMSTERDAM,A SUBSIDIARY OF THE NETHERLANDS OF HONEYWELL INC. A DE CORP. ASSIGNOR ASSIGNS THE ENTIRE INTEREST, SUBJECT TO LICENSE RECITED. (SEE RECORDS FOR DETAILS). Assignors: U.S. PHILIPS CORPORATION
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Expired - Lifetime legal-status Critical Current

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    • 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
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/378—Electrical supply
    • A61N1/3785—Electrical supply generated by biological activity or substance, e.g. body movement
    • 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
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/378—Electrical supply

Definitions

  • ABSTRACT A device for supplying electrical energy to a heart stimulator which is formed as an air-tight casing arranged to be placed within the human body in close proximity to the heart muscle.
  • the casing has housed therein an annularly arranged magnetic circuit with a rotor arranged in a gap of the circuit.
  • a rotary piston is accommodated within a piston chamber having four compartments divided in pairs. One of the pair is connected via a flexible tube to a first flexible bag arranged at the tip of the heart and the other pair communicates via another flexible hose to a second flexible elastic bag.
  • the elastic bags contain fluid which communicate alternately between the pairs of compartments within the chamber so that upon the pumping action of the heart the piston is caused to oscillate in a rotary motion and mechanical coupling means are connected between the piston and a driving member mounted coaxially with the rotor 50 as to drive the rotor thereby producing electrical signals in response to the movement of the heart.
  • This invention relates to a supply device for an intracorporal heart stimulator in the domain of medical prostheses.
  • Cardiac stimulators used for some diseases provide electric pulses to the myocardium by electrodes, different sources of energy are available for feeding these stimulators.
  • the apparatus forms not only an electric current generator but also a pulse generator for stimulating the heart. it comprises in an air-tight box a magnetic circuit, in the gap of which a rotor is adapted to oscillate between two pivots. An oscillation of the box produded by the movement of the heart causes the rotor to pass from an unstable position to a stable position and during this movement a sequence of rapid oscillations of the rotor induces in the magnetic circuit an oscillatory current of decreasing amplitude.
  • the box For transmitting the movement of the heart the box comprises a pendulum associated with a rotatable piece coaxial to said rotor and provided with a contact finger which co-operates with a pin of said rotor.
  • This system can only provide pulses at a predetermined frequency usually of about 1 Hz. For many cases it is, however, desirable to have available a system of variable frequency so that the heart may obtain pulses at different rhythms.
  • the present invention based on the same principle of mecano-electric transformation provides a supply device for an intracorporal heart stimulator, which may be of the conventional type.
  • the supply device is formed by a member converting mechanical energy into electric energy and comprises an oscillatory rotor arranged in the gap of a magnetic circuit and means for transmitting the movement of the heart to said rotor, which means comprise a rotatable piece coaxial to said rotor and provided with at least one mechanical contact member for driving said rotor.
  • said means further comprises a rotatable piston mechanically coupled with the rotatable piece and a member controlling the displacements of said piston in accordance with the movements of the heart.
  • FIG. 1 an elevation of the open casing comprising the supply device in accordance with the invention
  • FIG. 2 a schematic view of the rotatable piston shown at the center of FIG. 1;
  • FIG. 3 an over-all view of the casing and the transmission of the movements of the heart; and in FIG. 4 a schematic diagram showing the stimulator.
  • An airtight casing l accommodates an annular magnetic circuit 2a associated with a winding 2b, the gap accommodating a rotor 3.
  • Two auxiliary magnets 4 of the kind described in the aforesaid Patent Specification produce a magnetic field at right angles to the axis of the rotor and hence a return-couple for the latter.
  • the rotor is provided with a driving pin 5 co-operating with a finger 6 of a rotatable piece 7 which is coaxial to the rotor, the pin 5 and the finger 6 forming the mechanical contact elements for driving said rotor.
  • - rotatable piece is provided with a gear wheel 8 in mesh with the gear wheel 9 associated with a rotatable piston 11, mounted along the axis AA of the casing 1 inside the annular magnetic circuit.
  • the space 12 accommodating the piston 11 is divided into four chambers 13a, 13b, 14a and 14b of pairwise equal, variable volumes. These chambers (see FIGS. 2 and 3) are connected, as far as the first two are concerned by the flexible tube 15 with a plastic bag 18 arranged on the tip of the heart 17, the two others, by the flexible tube 16 with an elastic bag 19 of expansion.
  • the bag 18 is filled with a liquid.
  • the bag 18 is compressed between the tip of the heart and the surrounding tissues; the liquid is thus expelled into the flexible tube 15, it traverses the space 12 and emanates from the tube 16 towards the bag 19.
  • the tension of the second elastic bag pushes the liquid back to the first bag, which is no longer subjected to the pressure of the tip of the heart.
  • the rotatable piston l l is caused to perform an alternating movement which is transmitted by the gear wheels and produces the oscillation of the rotor under the action of the couple produced by the magnets 4.
  • the winding 2b of the magnetic circuit 2a is connected to the terminals of a first capacitor, so that an oscillatory circuit is formed. If the frequency of the latter lies near the oscillation frequency of the rotor, an automatic transmission of energy is obtained from the rotor to the oscillatory circuit.
  • the switch 24, the capacitor 25 and the stimulator 26 may be accommodated inside the casing 1 near the rotatable piston for instance. (not shown for the sake of clarity).
  • the pulses generated by the stimulator 26 are transmitted via leads 27 and 28 to electrodes schematically indicated by arrows 29 and 30, one of these electrodes may be formed by the casing l,-whereas the other (30, see FIG. 3) may be fixed to the flexible bag 18, when the liquid is conductive.
  • the driving system is formed by a magnetic coupling so that a shaft traversing the casing is not required.
  • the piston 11 is made of magnetic material and associated with two external, symmetrical magnets.
  • the invention may be used in the treatment of given cardial diseases by prostheses.
  • a device for supplying energy for an intracorporal heart stimulator comprising an airtight casing to be placed within the human body, an annularly arranged magnetic circuit housed within said casing, a winding coupled to said magnetic circuit to produce electrical energy said circuit having a gap therein, a rotor arranged in said gap for oscillatory movement, a multicompartment piston chamber arranged within said magnetic circuit, a piston mounted for rotatable movement within said chamber about an axis of rotation parallel and eccentric to the axis of rotation of said rotor, hydraulic means connected with said chamber for transmitting pulses thereto in response to movements of the heart so as to cause rotational displacement of said piston in accordance therewith, a driving member rotatably mounted coaxially with said rotor and having means contacting said rotor for driving same, and mechanical coupling means for causing movement of said driving member in response to rotational movement of said piston so that when said piston is rotatably driven as a result of heart movement said driving member will be caused to rotate and cause oscil
  • said piston chamber comprises first, second, third and fourth compartments, the volume of said first and third compartments being variable and equal to each other, the volume of said second and fourth compartments being variable and equal to each other and wherein said hydraulic means comprises a first flexible bag arranged on the tip of the heart, a first flexible liquid circulation tube connected to said first flexible bag and communicating with said first and third compartments, a second elastic bag of expansion and a second flexible liquid circulation tube connected to said second elastic bag of expansion and communicating with said second and fourth compartments.
  • the device according to claim 1 further comprising at least one magnet disposed near said rotor for roducin a ma etic field ndicular to said rotor.
  • said piston is mounted for rotation about an axis of the casing which is filled with air, and wherein said piston is made of magnetic material and further comprising a pair of magnets arranged symmetrically outside of said piston chamber so as to form a magnetic coupling thereby producing a drive for the piston.
  • the device according to claim 1 further comprising a capacitor connected to said winding and forming an oscillatory circuit for the transmission of the mechanical energy of the rotor.
  • said mechanical coupling means for causing movement of said driving member in response to rotational movement of said piston comprises a first gear wheel arranged on said driving member and a second gear wheel associated with said piston and arranged in mesh with said first gear wheel.
  • the device according to claim I further comprising a heart stimulator carried within said casing, an energy accumulator connected to said stimulator and a switch for connecting said oscillatory circuit to said energy accumulator, one of the electrodes of said stimulator being formed by said casing and the other electrode being fixed to said flexible bag at the tip of

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Electrotherapy Devices (AREA)
  • Magnetic Treatment Devices (AREA)
US33745A 1969-05-13 1970-05-01 Heart stimulator and heart-powered energy supply therefor Expired - Lifetime US3693625A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6915527A FR2044246A5 (enrdf_load_stackoverflow) 1969-05-13 1969-05-13

Publications (1)

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US3693625A true US3693625A (en) 1972-09-26

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US33745A Expired - Lifetime US3693625A (en) 1969-05-13 1970-05-01 Heart stimulator and heart-powered energy supply therefor

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US (1) US3693625A (enrdf_load_stackoverflow)
JP (1) JPS502551B1 (enrdf_load_stackoverflow)
DE (1) DE2020380C2 (enrdf_load_stackoverflow)
FR (1) FR2044246A5 (enrdf_load_stackoverflow)
GB (1) GB1281646A (enrdf_load_stackoverflow)
SE (1) SE360980B (enrdf_load_stackoverflow)

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826265A (en) * 1972-10-05 1974-07-30 Medtronic Inc Mechanical pulse generator for cardiac pacer
US3906960A (en) * 1973-02-27 1975-09-23 Siegfried R Lehr Medical energy converter
US4453537A (en) * 1981-08-04 1984-06-12 Spitzer Daniel E Apparatus for powering a body implant device
US4510935A (en) * 1981-10-28 1985-04-16 Cardiac Recorders Limited Cardiac defibrillator
US20020120295A1 (en) * 2001-02-27 2002-08-29 Olson Renee C. Battery-less, human-powered electrotherapy device and method of use
US20040073267A1 (en) * 2002-10-09 2004-04-15 Asher Holzer Micro-generator implant
US20050256549A1 (en) * 2002-10-09 2005-11-17 Sirius Implantable Systems Ltd. Micro-generator implant
US20050288726A1 (en) * 2001-10-01 2005-12-29 Scicotec Gmbh Method and device for using impedance measurements based on electrical energy of the heart
US20060184206A1 (en) * 2005-02-15 2006-08-17 Baker Rex M Iii Implantable generating system
US20070276444A1 (en) * 2006-05-24 2007-11-29 Daniel Gelbart Self-powered leadless pacemaker
US20070293904A1 (en) * 2006-06-20 2007-12-20 Daniel Gelbart Self-powered resonant leadless pacemaker
GB2448506A (en) * 2007-04-17 2008-10-22 Perpetuum Ltd Implanted energy harvester with hydraulically driven linear generator for powering a further implanted device
US20100063557A1 (en) * 2008-09-09 2010-03-11 Mir Imran Energy harvesting mechanism
US20100076517A1 (en) * 2008-09-23 2010-03-25 Mir Imran Energy harvesting mechanism for medical devices
WO2010070650A1 (en) 2008-12-21 2010-06-24 Sirius Implantable Systems Ltd. High efficiency piezoelectric micro-generator and energy storage system
US20100217354A1 (en) * 2009-02-20 2010-08-26 Biotronik Crm Patent Ag Active Medical Implant
US20110087304A1 (en) * 2001-10-01 2011-04-14 Maik Gollasch Method of vagal stimulation to treat patients suffering from congestive heart failure
US9084859B2 (en) 2011-03-14 2015-07-21 Sleepnea Llc Energy-harvesting respiratory method and device
US9289612B1 (en) 2014-12-11 2016-03-22 Medtronic Inc. Coordination of ventricular pacing in a leadless pacing system
US9399140B2 (en) 2014-07-25 2016-07-26 Medtronic, Inc. Atrial contraction detection by a ventricular leadless pacing device for atrio-synchronous ventricular pacing
US9457186B2 (en) 2010-11-15 2016-10-04 Bluewind Medical Ltd. Bilateral feedback
US9492668B2 (en) 2014-11-11 2016-11-15 Medtronic, Inc. Mode switching by a ventricular leadless pacing device
US9492669B2 (en) 2014-11-11 2016-11-15 Medtronic, Inc. Mode switching by a ventricular leadless pacing device
US9597521B2 (en) 2015-01-21 2017-03-21 Bluewind Medical Ltd. Transmitting coils for neurostimulation
US9623234B2 (en) 2014-11-11 2017-04-18 Medtronic, Inc. Leadless pacing device implantation
US9713707B2 (en) 2015-11-12 2017-07-25 Bluewind Medical Ltd. Inhibition of implant migration
US9724519B2 (en) 2014-11-11 2017-08-08 Medtronic, Inc. Ventricular leadless pacing device mode switching
US9764146B2 (en) 2015-01-21 2017-09-19 Bluewind Medical Ltd. Extracorporeal implant controllers
US9782589B2 (en) 2015-06-10 2017-10-10 Bluewind Medical Ltd. Implantable electrostimulator for improving blood flow
US9861812B2 (en) 2012-12-06 2018-01-09 Blue Wind Medical Ltd. Delivery of implantable neurostimulators
US10004896B2 (en) 2015-01-21 2018-06-26 Bluewind Medical Ltd. Anchors and implant devices
US10105540B2 (en) 2015-11-09 2018-10-23 Bluewind Medical Ltd. Optimization of application of current
US10124178B2 (en) 2016-11-23 2018-11-13 Bluewind Medical Ltd. Implant and delivery tool therefor
US10390720B2 (en) 2014-07-17 2019-08-27 Medtronic, Inc. Leadless pacing system including sensing extension
US10653888B2 (en) 2012-01-26 2020-05-19 Bluewind Medical Ltd Wireless neurostimulators
US11207527B2 (en) 2016-07-06 2021-12-28 Cardiac Pacemakers, Inc. Method and system for determining an atrial contraction timing fiducial in a leadless cardiac pacemaker system
US11213685B2 (en) 2017-06-13 2022-01-04 Bluewind Medical Ltd. Antenna configuration
US11400299B1 (en) 2021-09-14 2022-08-02 Rainbow Medical Ltd. Flexible antenna for stimulator
US11771901B2 (en) 2015-11-17 2023-10-03 Inspire Medical Systems, Inc. Microstimulation sleep disordered breathing (SDB) therapy device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19827898C1 (de) * 1998-06-23 1999-11-11 Hans Leysieffer Verfahren und Vorrichtung zur Versorgung eines teil- oder vollimplantierten aktiven Gerätes mit elektrischer Energie
GB2350302A (en) * 1999-05-26 2000-11-29 Demetriou Demetrios Implanted power generator
DE102004043002A1 (de) * 2004-09-02 2006-03-09 Biotronik Vi Patent Ag Elektromedizinisches Implantat und Energiequelle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1061624A (en) * 1912-03-14 1913-05-13 Charles Ruby Moore Electromotor.
US3486506A (en) * 1965-10-13 1969-12-30 Philips Corp Heart-actuated,spring driven cardiac stimulator
US3563245A (en) * 1968-03-15 1971-02-16 Donald Neil Mclean Biologically implantable and energized power supply

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR92782E (fr) * 1965-10-13 1968-12-27 Massiot Philips Sa Stimulateur cardiaque.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1061624A (en) * 1912-03-14 1913-05-13 Charles Ruby Moore Electromotor.
US3486506A (en) * 1965-10-13 1969-12-30 Philips Corp Heart-actuated,spring driven cardiac stimulator
US3563245A (en) * 1968-03-15 1971-02-16 Donald Neil Mclean Biologically implantable and energized power supply

Cited By (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826265A (en) * 1972-10-05 1974-07-30 Medtronic Inc Mechanical pulse generator for cardiac pacer
US3906960A (en) * 1973-02-27 1975-09-23 Siegfried R Lehr Medical energy converter
US4453537A (en) * 1981-08-04 1984-06-12 Spitzer Daniel E Apparatus for powering a body implant device
US4510935A (en) * 1981-10-28 1985-04-16 Cardiac Recorders Limited Cardiac defibrillator
US20020120295A1 (en) * 2001-02-27 2002-08-29 Olson Renee C. Battery-less, human-powered electrotherapy device and method of use
US6546286B2 (en) * 2001-02-27 2003-04-08 Koninklijke Philips Electronics N.V. Battery-less, human-powered electrotherapy device
WO2002068039A3 (en) * 2001-02-27 2003-05-22 Koninkl Philips Electronics Nv Battery-less, human-powered electrotherapy device and method of use
US8457743B2 (en) 2001-10-01 2013-06-04 Medtronic, Inc. Method of vagal stimulation to treat patients suffering from congestive heart failure
US20050288726A1 (en) * 2001-10-01 2005-12-29 Scicotec Gmbh Method and device for using impedance measurements based on electrical energy of the heart
US7778709B2 (en) * 2001-10-01 2010-08-17 Medtronic, Inc. Method and device for using impedance measurements based on electrical energy of the heart
US8219198B2 (en) 2001-10-01 2012-07-10 Medtronic, Inc. Method and device for using impedance measurements based on electrical energy of the heart
US20110087304A1 (en) * 2001-10-01 2011-04-14 Maik Gollasch Method of vagal stimulation to treat patients suffering from congestive heart failure
US20110087119A1 (en) * 2001-10-01 2011-04-14 Maik Gollasch Method and device for using impedance measurements based on electrical energy of the heart
US20050256549A1 (en) * 2002-10-09 2005-11-17 Sirius Implantable Systems Ltd. Micro-generator implant
US20040073267A1 (en) * 2002-10-09 2004-04-15 Asher Holzer Micro-generator implant
US20060184206A1 (en) * 2005-02-15 2006-08-17 Baker Rex M Iii Implantable generating system
WO2006088696A3 (en) * 2005-02-15 2007-10-11 Iii Rex M Baker Implantable generating system
US7729767B2 (en) * 2005-02-15 2010-06-01 Baker Iii Rex M Implantable generating system
US20070276444A1 (en) * 2006-05-24 2007-11-29 Daniel Gelbart Self-powered leadless pacemaker
US20070293904A1 (en) * 2006-06-20 2007-12-20 Daniel Gelbart Self-powered resonant leadless pacemaker
US8135469B2 (en) * 2007-04-17 2012-03-13 Perpetuum Ltd. Energy harvester for an implant device
US20080262562A1 (en) * 2007-04-17 2008-10-23 Perpetuum Ltd. Energy Harvester for an Implant Device
GB2448506A (en) * 2007-04-17 2008-10-22 Perpetuum Ltd Implanted energy harvester with hydraulically driven linear generator for powering a further implanted device
US9893654B2 (en) 2008-09-09 2018-02-13 Incube Labs, Llc Energy harvesting mechanism
US8948870B2 (en) 2008-09-09 2015-02-03 Incube Labs, Llc Energy harvesting mechanism
US20100063557A1 (en) * 2008-09-09 2010-03-11 Mir Imran Energy harvesting mechanism
US9616242B2 (en) 2008-09-23 2017-04-11 Incube Labs, Llc Energy harvesting mechanism for medical devices
US9026212B2 (en) * 2008-09-23 2015-05-05 Incube Labs, Llc Energy harvesting mechanism for medical devices
US20100076517A1 (en) * 2008-09-23 2010-03-25 Mir Imran Energy harvesting mechanism for medical devices
US10398904B2 (en) 2008-09-23 2019-09-03 Incube Labs, Llc Energy harvesting mechanism for medical devices
WO2010070650A1 (en) 2008-12-21 2010-06-24 Sirius Implantable Systems Ltd. High efficiency piezoelectric micro-generator and energy storage system
US8401647B2 (en) * 2009-02-20 2013-03-19 Biotronik Crm Patent Ag Active medical implant
US20100217354A1 (en) * 2009-02-20 2010-08-26 Biotronik Crm Patent Ag Active Medical Implant
US9457186B2 (en) 2010-11-15 2016-10-04 Bluewind Medical Ltd. Bilateral feedback
US9084859B2 (en) 2011-03-14 2015-07-21 Sleepnea Llc Energy-harvesting respiratory method and device
US10653888B2 (en) 2012-01-26 2020-05-19 Bluewind Medical Ltd Wireless neurostimulators
US12059571B2 (en) 2012-01-26 2024-08-13 Bluewind Medical Ltd Wireless neurostimulators
US11648410B2 (en) 2012-01-26 2023-05-16 Bluewind Medical Ltd. Wireless neurostimulators
US9861812B2 (en) 2012-12-06 2018-01-09 Blue Wind Medical Ltd. Delivery of implantable neurostimulators
US11464966B2 (en) 2012-12-06 2022-10-11 Bluewind Medical Ltd. Delivery of implantable neurostimulators
US11278719B2 (en) 2012-12-06 2022-03-22 Bluewind Medical Ltd. Delivery of implantable neurostimulators
US10238863B2 (en) 2012-12-06 2019-03-26 Bluewind Medical Ltd. Delivery of implantable neurostimulators
US10674928B2 (en) 2014-07-17 2020-06-09 Medtronic, Inc. Leadless pacing system including sensing extension
US10390720B2 (en) 2014-07-17 2019-08-27 Medtronic, Inc. Leadless pacing system including sensing extension
USRE48197E1 (en) 2014-07-25 2020-09-08 Medtronic, Inc. Atrial contraction detection by a ventricular leadless pacing device for atrio-synchronous ventricular pacing
US9399140B2 (en) 2014-07-25 2016-07-26 Medtronic, Inc. Atrial contraction detection by a ventricular leadless pacing device for atrio-synchronous ventricular pacing
US9492668B2 (en) 2014-11-11 2016-11-15 Medtronic, Inc. Mode switching by a ventricular leadless pacing device
US9492669B2 (en) 2014-11-11 2016-11-15 Medtronic, Inc. Mode switching by a ventricular leadless pacing device
US9623234B2 (en) 2014-11-11 2017-04-18 Medtronic, Inc. Leadless pacing device implantation
US10279168B2 (en) 2014-11-11 2019-05-07 Medtronic, Inc. Leadless pacing device implantation
US9808628B2 (en) 2014-11-11 2017-11-07 Medtronic, Inc. Mode switching by a ventricular leadless pacing device
US9724519B2 (en) 2014-11-11 2017-08-08 Medtronic, Inc. Ventricular leadless pacing device mode switching
US9289612B1 (en) 2014-12-11 2016-03-22 Medtronic Inc. Coordination of ventricular pacing in a leadless pacing system
US9597521B2 (en) 2015-01-21 2017-03-21 Bluewind Medical Ltd. Transmitting coils for neurostimulation
US10004896B2 (en) 2015-01-21 2018-06-26 Bluewind Medical Ltd. Anchors and implant devices
US9764146B2 (en) 2015-01-21 2017-09-19 Bluewind Medical Ltd. Extracorporeal implant controllers
US10369366B2 (en) 2015-06-10 2019-08-06 Bluewind Medical Ltd. Implantable electrostimulator for improving blood flow
US9782589B2 (en) 2015-06-10 2017-10-10 Bluewind Medical Ltd. Implantable electrostimulator for improving blood flow
US10105540B2 (en) 2015-11-09 2018-10-23 Bluewind Medical Ltd. Optimization of application of current
US11612747B2 (en) 2015-11-09 2023-03-28 Bluewind Medical Ltd. Optimization of application of current
US11116975B2 (en) 2015-11-09 2021-09-14 Bluewind Medical Ltd. Optimization of application of current
US10449374B2 (en) 2015-11-12 2019-10-22 Bluewind Medical Ltd. Inhibition of implant migration
US9713707B2 (en) 2015-11-12 2017-07-25 Bluewind Medical Ltd. Inhibition of implant migration
US11771901B2 (en) 2015-11-17 2023-10-03 Inspire Medical Systems, Inc. Microstimulation sleep disordered breathing (SDB) therapy device
US12397159B2 (en) 2015-11-17 2025-08-26 Inspire Medical Systems, Inc. Microstimulation sleep disordered breathing (SDB) therapy device
US11207527B2 (en) 2016-07-06 2021-12-28 Cardiac Pacemakers, Inc. Method and system for determining an atrial contraction timing fiducial in a leadless cardiac pacemaker system
US11439833B2 (en) 2016-11-23 2022-09-13 Bluewind Medical Ltd. Implant-delivery tool
US10744331B2 (en) 2016-11-23 2020-08-18 Bluewind Medical Ltd. Implant and delivery tool therefor
US10124178B2 (en) 2016-11-23 2018-11-13 Bluewind Medical Ltd. Implant and delivery tool therefor
US11213685B2 (en) 2017-06-13 2022-01-04 Bluewind Medical Ltd. Antenna configuration
US11951316B2 (en) 2017-06-13 2024-04-09 Bluewind Medical Ltd. Antenna configuration
US11400299B1 (en) 2021-09-14 2022-08-02 Rainbow Medical Ltd. Flexible antenna for stimulator

Also Published As

Publication number Publication date
DE2020380A1 (de) 1970-11-19
GB1281646A (en) 1972-07-12
JPS502551B1 (enrdf_load_stackoverflow) 1975-01-27
SE360980B (enrdf_load_stackoverflow) 1973-10-15
DE2020380C2 (de) 1982-09-02
FR2044246A5 (enrdf_load_stackoverflow) 1971-02-19

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