Patents by Inventor Francisco Jose Barreras, Sr.

Francisco Jose Barreras, Sr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6664763
    Abstract: The method and system manage power supplied from a charging circuit to a power source in an implantable medical device utilizing measurements of current drain; measurements of elapsed time since the last full charge; calculations of operating time based on the variable of current drain and the variable of the actual capacity of the power source; sensing of voltage level above a certain value; and monitoring of the temperature of the power source during charging and discharging.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: December 16, 2003
    Assignee: Exonix Corporation
    Inventors: Guillermo Echarri, Roberto Echarri, Francisco Jose Barreras, Sr., Oscar Jimenez
  • Patent number: 6609945
    Abstract: The remote-controlled air, land or water borne toy vehicle comprises: a body; a printed circuit board mounted in or to the body; a receiver connected to the printed circuit board for receiving commands; hardware on the printed circuit board including control circuitry for manipulating the toy vehicle in response to commands received by the receiver; and a motor drive mechanism mounted on or to the toy vehicle for moving or propelling the toy vehicle in response to control signals from the control circuitry. Preferably at least one of several infrared emitting simulated weapons are mounted on the toy vehicle and are selected from the group including a machine gun, a cannon and a missile.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: August 26, 2003
    Assignee: Plexus, Inc.
    Inventors: Oscar Jimenez, Francisco Jose Barreras, Sr., Roberto Echarri, Guillermo Echarri
  • Patent number: 6278258
    Abstract: The method and system for managing power supplied from a charging circuit to a power source in an implantable medical device comprises the steps of and circuitry for: measuring the current drain of the medical device; measuring the elapsed time since the last full charge of a power source of the device; calculating the actual capacity of the power source (corrected for fade) based on the variable of current drain and the variable of elapsed time; calculating the operating time based on the variable of current drain and the variable of the actual capacity of the power source; measuring the voltage of the power source; signaling the medical device when the power source voltage has reached a certain low value which requires disconnection from the power source; disconnecting, during discharging, the power source from the medical device upon the power source reaching a certain low voltage in order to prevent deep discharging of the power source and subsequent damage; precisely limiting the charging voltage to the
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: August 21, 2001
    Assignee: Exonix Corporation
    Inventors: Guillermo Echarri, Roberto Echarri, Francisco Jose Barreras, Sr., Oscar Jimenez
  • Patent number: 6192279
    Abstract: The method and system for non-invasively repositioning at least one stimulating electrode on a lead relative to tissue, such as nerve tissue, in a body includes elements for carrying out the method and the steps of: providing a lead having at least one stimulating electrode thereon which is located skew to an elongate axis of the lead; implanting the lead in a body; implanting in the body a drive mechanism having structure for engaging and rotating the lead; and, providing an exterior signal generating and transmitting mechanism for transmitting electromagnetic signals from outside the body to the drive mechanism implanted in the body for causing the drive mechanism to rotate the lead thereby to adjust the position of the at least one stimulating electrode on the lead relative to tissue in the body.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: February 20, 2001
    Assignee: Medtronic, Inc.
    Inventors: Francisco Jose Barreras, Sr., Oscar Jimenez
  • Patent number: 6181105
    Abstract: The power source maintenance and charge system comprises: charge maintenance circuitry for maintaining a desired charge on or for charging, a special power source of a packaged device; control circuity for actuating and de-actuating the charge maintenance circuitry; and coupling circuitry for coupling the charge maintenance circuitry to the power source including a polymer insulated flat ribbon cable that passes through one of a sterile or non-sterile sealed plastic package containing the device to connect an auxiliary power source of the charge maintenance circuitry to the special power source of the device.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: January 30, 2001
    Assignee: Exonix Corporation
    Inventors: Vincent Cutolo, Oscar Jimenez, Roberto Echarri, Guillermo Echarri, Francisco Jose Barreras, Sr.
  • Patent number: 6166518
    Abstract: The method and system for managing power supplied from a charging circuit to a power source in an implantable medical device comprises the steps of and circuitry for: measuring the current drain of the medical device; measuring the elapsed time since the last full charge of a power source of the device; calculating the actual capacity of the power source (corrected for fade) based on the variable of current drain and the variable of elapsed time; calculating the operating time based on the variable of current drain and the variable of the actual capacity of the power source; measuring the voltage of the power source; signaling the medical device when the power source voltage has reached a certain low value which requires disconnection from the power source; disconnecting, during discharging, the power source from the medical device upon the power source reaching a certain low voltage in order to prevent deep discharging of the power source and subsequent damage; precisely limiting the charging voltage to the
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: December 26, 2000
    Assignee: Exonix Corporation
    Inventors: Guillermo Echarri, Roberto Echarri, Francisco Jose Barreras, Sr., Oscar Jimenez
  • Patent number: 5949632
    Abstract: A power supply comprising: a power source including a capacitive, nuclear or an electrochemical device for storing electrical energy; sensing circuitry for sensing when the voltage on power source is above or below a certain level; a DC-DC converter coupled to the power source switching circuitry coupled to the sensing circuitry and operable to connect the DC-DC converter to an output load and disconnect the power source from the output load when the voltage on the power source falls below a certain level and for connecting the power source to the output load and disconnecting the DC-DC converter from the output load when the voltage on the power source rises above a certain level; circuitry for activating the DC to DC Converter when the voltage on the power source falls below a certain level; and circuitry means for shutting down the DC to DC Converter when the voltage on the power source rises above a certain level.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: September 7, 1999
    Assignee: Exonix Corporation
    Inventors: Francisco Jose Barreras, Sr., Guillermo Echarri, Roberto Echarri
  • Patent number: 5769877
    Abstract: The implantable device includes a power supply including a high value, small sized capacitor having at least a capacitive rating of 0.1 farads which is completely contained within the implantable device. This high value, small size capacitor or series of capacitors enables the implantable device to deliver, on a controlled and continual basis, electric energy over at least an eight hour period. Further, the capacitive power source is replenished via an external, RF coupled device on a daily or other long term periodic basis. During the replenishing cycle, the energy contained in the battery of the external transmitter is transferred to the internal capacitive power source in the implantable device. The method includes providing, on an exclusive basis, power to an implantable device via a high value capacitive source during at least an eight hour cycle of substantially continual delivery of electric energy.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: June 23, 1998
    Assignee: Plexus, Inc.
    Inventor: Francisco Jose Barreras, Sr.
  • Patent number: 5735887
    Abstract: The implantable, electrically operated medical device system comprises an implantable radio frequency (RF) receiver and an external RF transmitter. The receiver has a receiving antenna and electronic circuitry coupled to the receiving antenna and includes a microcontroller having an output, a non-volatile memory coupled to the microcontroller and an implanted, electrically and autonomously operated medical device is coupled to the output of the microcontroller. The external RF transmitter has a power source and a transmitting antenna. The receiver further includes circuitry coupled to the microcontroller for regulating the power transmitted by the transmitter, whereby, RF energy can be transmitted by the transmitter and coupled into the receiver and the level of RF energy transmitted by the transmitter is controlled by the circuitry.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: April 7, 1998
    Assignee: Exonix Corporation
    Inventors: Francisco Jose Barreras, Sr., Robert Echarri
  • Patent number: 5733313
    Abstract: The implantable, electrically operated medical device system comprises an implanted radio frequency (RF) receiving unit (receiver) incorporating a back-up rechargeable power supply and an implanted, electrically operated device, and an external RF transmitting unit (transmitter). RF energy is transmitted by the transmitter and is coupled into the receiver which is used to power the implanted medical device and/or recharge the back-up power supply. The back-up power supply within the receiver has enough capacity to be able to, by itself, power the implanted device coupled to the receiver for at least 24 hours during continual delivery of medical therapy. The receiver is surgically implanted within the patient and the transmitter is worn externally by the patient. The transmitter can be powered by either a rechargeable or non-rechargeable battery. In a first mode of operation, the transmitter will supply power, via RF coupled energy, to operate the receiver and simultaneously recharge the back-up power supply.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: March 31, 1998
    Assignee: Exonix Corporation
    Inventors: Francisco Jose Barreras, Sr., Oscar Jimenez
  • Patent number: RE42682
    Abstract: The implantable, electrically operated medical device system comprises an implanted radio frequency (RF) receiving unit (receiver) incorporating a back-up rechargeable power supply and an implanted, electrically operated device, and an external RF transmitting unit (transmitter). RF energy is transmitted by the transmitter and is coupled into the receiver which is used to power the implanted medical device and/or recharge the back-up power supply. The back-up power supply within the receiver has enough capacity to be able to, by itself, power the implanted device coupled to the receiver for at least 24 hours during continual delivery of medical therapy. The receiver is surgically implanted within the patient and the transmitter is worn externally by the patient. The transmitter can be powered by either a rechargeable or non-rechargeable battery. In a first mode of operation, the transmitter will supply power, via RF coupled energy, to operate the receiver and simultaneously recharge the back-up power supply.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: September 6, 2011
    Assignee: Medtronic, Inc.
    Inventors: Francisco Jose Barreras, Sr., Oscar Jimenez