Patents by Inventor Ioana Rizoiu

Ioana Rizoiu 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).

  • Publication number: 20060204203
    Abstract: A laser handpiece is disclosed, including a fiber optic end having a non-cylindrical shape and further including a reflector surrounding a portion of the fiber optic end. The reflector is shaped to direct laser energy emitted from the fiber optic end in a direction away from the laser handpiece and toward a treatment site.
    Type: Application
    Filed: March 8, 2005
    Publication date: September 14, 2006
    Inventors: Ioana Rizoiu, Dmitri Boutsoussov, Jeffrey Jones
  • Publication number: 20060142743
    Abstract: A method and apparatus are described for controlling temperature of a fluid used with electromagnetic energy in medical and dental laser procedures. Received fluid is passed through a heat exchanger, and heat is added to or removed from the fluid depending upon a desired effect, which may be influenced by a temperature setting. Temperature of output fluid is sensed, and heating or cooling is controlled in order to maintain output fluid temperature in a desired range. Ultraviolet radiation is used to sterilize the fluid.
    Type: Application
    Filed: July 27, 2005
    Publication date: June 29, 2006
    Inventors: Ioana Rizoiu, Dmitri Boutoussov
  • Publication number: 20060099548
    Abstract: A laser device is disclosed that directs light to a tooth and analyzes scattered light reflected from the tooth. The device measures a time delay between excitation and reflections of light. Reflected light is analyzed to determine a presence and extent of dental caries on the tooth.
    Type: Application
    Filed: August 12, 2005
    Publication date: May 11, 2006
    Inventors: Ioana Rizoiu, Dmitri Boutoussov
  • Publication number: 20060043903
    Abstract: Output optical energy pulses including relatively high energy magnitudes at the beginning of each pulse are disclosed. As a result of the relatively high energy magnitudes which lead each pulse, the leading edge of each pulse includes a relatively large slope. This slope is preferably greater than or equal to 5. Additionally, the full-width half-max value of the output optical energy distributions are between 0.025 and 250 microseconds and, more preferably, are about 70 microseconds. A flashlamp is used to drive the laser system, and a current is used to drive the flashlamp. A flashlamp current generating circuit includes a solid core inductor which has an inductance of 50 microhenries and a capacitor which has a capacitance of 50 microfarads.
    Type: Application
    Filed: November 18, 2004
    Publication date: March 2, 2006
    Inventors: Ioana Rizoiu, Andrew Kimmel
  • Publication number: 20050281887
    Abstract: A fluid conditioning system is adapted to condition the fluid used in medical and dental cutting, irrigating, evacuating, cleaning, and drilling operations. The fluid may be conditioned by adding flavors, antiseptics and/or tooth whitening agents such as peroxide, medications, and pigments. In addition to the direct benefits obtained from introduction of these agents, the laser cutting properties may be varied from the selective introduction of the various agents.
    Type: Application
    Filed: January 10, 2005
    Publication date: December 22, 2005
    Inventors: Ioana Rizoiu, Jeffrey Jones
  • Publication number: 20050283143
    Abstract: An electromagnetically induced cutting mechanism provides accurate cutting operations on hard or soft tissues. The electromagnetically induced cutter is adapted to interact with atomized fluid particles. A tissue remover comprises an aspiration cannula housing a fluid and energy guide for conducting electromagnetically induced cutting forces to the site within a patient's body for aspiration of hard or soft tissue. The cannula is provided with a cannula distal end. The proximal end of the cannula is provided with fluid flow connection to an aspiration source. Separated hard or soft tissue and fluid are aspirated through the cannula distal end and the cannula by an aspiration source at the proximal end of the cannula. Methods of using such a cutter for hard or soft tissue removal are also disclosed.
    Type: Application
    Filed: January 10, 2005
    Publication date: December 22, 2005
    Inventor: Ioana Rizoiu
  • Publication number: 20050281530
    Abstract: A laser handpiece is disclosed, including a shaped fiber optic tip having a side-firing output end with a non-cylindrical shape. The shaped fiber optic tip can be configured to side-fire laser energy in a direction away from a laser handpiece and toward sidewalls of a treatment or target site.
    Type: Application
    Filed: January 10, 2005
    Publication date: December 22, 2005
    Inventors: Ioana Rizoiu, Jeffrey Jones, Dmitri Boutoussov