Patents by Inventor Hua-Hong Chien

Hua-Hong Chien 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: 20090181342
    Abstract: A tooth extraction assisting device includes an ultrasonic machine, an ultrasonic hand piece, and 5 different insert tips that are hook-on to the hand piece. The ultrasonic machine outputs a signal with high frequency oscillation. This high frequency oscillation signal received by the ultrasonic hand piece generates a high frequency vibration of the insert tip. A set of 5 different configuration insert tips was designed for a precision surgical cut at the coronal portion of the periodontal ligament around tooth to be extracted. This device also provides a better visibility at the surgical area with the cavitation effect. With the help of the tooth extraction assisting device dental clinician is able to perform tooth extraction with less chair-time without damaging to the buccal alveolar process which increases the chance of immediate implant placement at the same appointment.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 16, 2009
    Inventor: Hua-Hong Chien