Patents by Inventor Alexandru Bucur

Alexandru Bucur 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: 8056557
    Abstract: The present invention provides a drug delivery device that uses an aerosol generator to nebulize a drug solution. The drug delivery device includes differently sized guide tubes and separator walls to provide substantially consistent particles that can be varied in size by using different guide tubes. The drug delivery device also includes a barrier that separates a fluid contained in the device from the drug solution at least a portion of the barrier is formed from Polyetheretherketone. The present invention also has a drug detection device that can detect the volume of drug in the device or whether the barrier has been compromised.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: November 15, 2011
    Assignee: RIC Investments, LLC
    Inventors: Eric A. Lieberman, Dirk Von Hollen, Alexandru Bucur, Lev Pavlovsky
  • Publication number: 20100313883
    Abstract: A nebulizer includes a piezoelectric transducer for aerosolizing a drug solution in a disposable cup module disposed above the transducer. Acoustic waves generated by the transducer propagate sequentially through transmitting medium, a first barrier, coupling medium, and a second barrier that forms part of the cup module, and into the interior of the cup module. The transducer at least partially comprises silver. The silver fluidly contacts the transmitting medium to discourage bacteria growth in the transmitting medium. The device includes electronics components that drive the transducer and measure an electrical characteristic associated with the transducer during operation. The electronics components measure changes in the electrical characteristic to determine when the drug solution level falls below a predetermined threshold, and deactivates the device accordingly.
    Type: Application
    Filed: August 4, 2010
    Publication date: December 16, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Dirk Von Hollen, Eric A. Lieberman, Alexandru Bucur
  • Patent number: 7779831
    Abstract: A nebulizer includes a piezoelectric transducer for aerosolizing a drug solution in a disposable cup module disposed above the transducer. Acoustic waves generated by the transducer propagate sequentially through transmitting medium, a first barrier, coupling medium, and a second barrier that forms part of the cup module, and into the interior of the cup module. The transducer at least partially comprises silver. The silver fluidly contacts the transmitting medium to discourage bacteria growth in the transmitting medium. The device includes electronics components that drive the transducer and measure an electrical characteristic associated with the transducer during operation. The electronics components measure changes in the electrical characteristic to determine when the drug solution level falls below a predetermined threshold, and deactivates the device accordingly.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: August 24, 2010
    Assignee: RIC Investments, LLC
    Inventors: Dirk Von Hollen, Eric A. Lieberman, Alexandru Bucur
  • Publication number: 20060243274
    Abstract: The present invention provides a drug delivery device that uses an aerosol generator to nebulize a drug solution. The drug delivery device includes differently sized guide tubes and separator walls to provide substantially consistent particles that can be varied in size by using different guide tubes. The drug delivery device also includes a barrier that separates a fluid contained in the device from the drug solution at least a portion of the barrier is formed from Polyetheretherketone. The present invention also has a drug detection device that can detect the volume of drug in the device or whether the barrier has been compromised.
    Type: Application
    Filed: March 3, 2006
    Publication date: November 2, 2006
    Inventors: Eric Lieberman, Dirk Von Hollen, Alexandru Bucur, Lev Pavlovsky
  • Patent number: 5674059
    Abstract: An first rotor and an second rotor rotate about a longitudinal axis in a housing. The second rotor moves longitudinally relative to the first rotor. Rotor vanes extend outward from the rotors and are longitudinally split into longitudinally extending second vanes and longitudinally extending first vanes that slide longitudinally relative to one another. The second vanes travel longitudinally with the second rotor relative to the first rotor, and the second vanes slide relative to the first vanes that remain with the first rotor. The second rotor and the second vanes move longitudinally toward and away from a recess defined by the first rotor such that the active surface area of the rotor vanes is varied. When the second vanes slide away from the first vanes, surfaces of the first vanes are exposed that reciprocate into and out of specially defined chambers in a pump-like fashion. A movable element is connected to and extends from the second rotor.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: October 7, 1997
    Inventor: Alexandru A. Bucur