Patents Assigned to EDAP International, S.A.
  • Patent number: 5158070
    Abstract: The method for the localized destruction of soft structures using negative pressure elastic waves, comprises the steps of generating at a predetermined rate comprised between a few Hz and 3 KHz, trains of elastic pressure waves, said waves having a frequency between 0.3 and 10 MHz, each of said trains having a duration between 1 microsecond and 1 millisecond and comprising negative going oscillations; focussing said waves into a beam; transmitting and directing said beam onto the target through a liquid coupling medium and adjusting the power of said elastic pressure wave at a predetermined value.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: October 27, 1992
    Assignee: EDAP International, S.A.
    Inventor: Jacques Dory
  • Patent number: 5150711
    Abstract: An extracorporeal ultra-high-speed ultrasound hyperthermia treatment device adapted to enable focussed emission of ultrasound wave trains at frequencies between 0.5 and 10 MHz with peak powers between 10 kW and a few hundred watts, the parameters which define the concentration of the treatment beam in the focal spot and the power being determined so that, irrespective of the depth and the nature of the tissue, the treatment time is in the order of that enabling significant destruction, preferably total destruction, of the target during the linear part of a curve showing the temperature increase as a function of time.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: September 29, 1992
    Assignee: EDAP International, S.A.
    Inventor: Jacques Dory
  • Patent number: 5150712
    Abstract: A hyperthermia treatment apparatus combining a generator of a focused ultrasonic beam comprising a main high frequency electric wave emitter and a main piezoelectric transducer whose active surface is focusing, with an echography device comprising an auxiliary high frequency electric pulse generator associated with an auxiliary piezoelectric transducer and means for causing the zone to be treated to be swept by the ultrasonic examination beam generated by said auxiliary transducer; and with switching and adjustment means for causing, during a main treatment and checking operating mode, emission of said focused beam by said main transducer energized by said main emitter during periodic time intervals separated by shorter time intervals during which the emission of the examination beam and the formation of echographic images are effected.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: September 29, 1992
    Assignee: EDAP International, S.A.
    Inventor: Jacques Dory
  • Patent number: 5143073
    Abstract: The disclosure relates to a device for locating and disintegrating body anomalies and displaying real time images of a body anomaly during treatment. The images are formed between pulses of disintegrating treatment waves by an ultrasound scanner in line with a shock wave treatment beam.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: September 1, 1992
    Assignee: EDAP International, S.A.
    Inventor: Jacques Dory
  • Patent number: 5111822
    Abstract: An article of manufacture which is used in medical treatment is a concave wave focusing device and a piezoelectric surface coupled to a target locating and treatment aiming ultrasound transducer which is located between the target and the surface and which scans the target to display a target image in coincidence with a visible indication of the focal point of the focusing device.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: May 12, 1992
    Assignee: EDAP International, S.A.
    Inventor: Jacques Dory
  • Patent number: 5080101
    Abstract: The disclosure relates to a method of ultrasonically locating and aiming treatment at a body target and displaying real time images of the body target. A treatment transducer produces a treatment beam of wave vibrations focused on said target and a separate scanning transducer displays images of said target on a display device during treatment with said beam together with a coincident image of a cursor which identifies the focal spot of the treatment beam.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: January 14, 1992
    Assignee: EDAP International, S.A.
    Inventor: Jacques Dory
  • Patent number: 5080102
    Abstract: A hyperthermia treatment apparatus combining a generator of a focused ultrasonic beam comprising a main high frequency electric wave emitter and a main piezoelectric transducer whose active surface is focusing, with an echography device comprising an auxiliary high frequency electric pulse generator associated with an auxiliary piezoelectric transducer and means for causing the zone to be treated to be swept by the ultrasonic examination beam generated by said auxiliary transducer; and with switching and adjustment means for causing, during a main treatment and checking operating mode, emission of said focused beam by said main transducer energized by said main emitter during periodic time intervals separated by shorter time intervals during which the emission of the examination beam and the formation of echographic images are effected.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: January 14, 1992
    Assignee: EDAP International, S.A.
    Inventor: Jacques Dory
  • Patent number: RE33590
    Abstract: A hyperthermia applicator comprises a generator of a focused ultrasonic beam comprising a main high frequency electric wave emitter and a main piezoelectric transducer and an echography device comprising an auxiliary high frequency electric pulse generator associated with an auxiliary piezoelectric transducer which generates an ultrasonic examination beam sweeping the zone to be treated. During a main treatment and checking operating mode, the focused beam is emitted by the main transducer energized by the main emitter during periodic time intervals separated by shorter time intervals. During the shorter time intervals, the examination beam is emitted and echographic images are formed.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: May 21, 1991
    Assignee: EDAP International, S.A.
    Inventor: Jacques Dory