Patents by Inventor Alwin H. Kolster

Alwin H. Kolster 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).

  • Liposuction cannula device and method
    Patent number: 6875207
    Abstract: A liposuction apparatus and method optionally having a sonic or ultrasonic source with an axial lumen passage in which the shaft can be made to reciprocate (oscillate) in a non-rectilinear fashion. The apparatus may also contain the concomitant use of rectilinear reciprocation motion in addition to ultrasonic motion or energy along the shaft of the apparatus. The advantages of the liposuction apparatus are as follows: 1) non-rectilinear single shaft reciprocating cannula, 2) sonic or ultrasonic energy delivered to the distal tip, 3) rectilinear reciprocating cannula with ultrasonic energy along the shaft from the handle, and 4) any of the above reciprocating components powered by excess unused vacuum capacity in the liposuction aspirator (suction engine) apparatus.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: April 5, 2005
    Assignee: The Regents of the University of California
    Inventors: Paul J. Weber, Steven R. Visuri, Matthew J. Everett, Luiz B. Da Silva, Alwin H. Kolster
  • Liposuction cannula device and method
    Patent number: 6638238
    Abstract: A liposuction apparatus and method optionally having a sonic or ultrasonic source with an axial lumen passage in which the shaft can be made to reciprocate (oscillate) in a non-rectilinear fashion. The apparatus may also contain the concomitant use of rectilinear reciprocation motion in addition to ultrasonic motion or energy along the shaft of the apparatus. The advantages of the liposuction apparatus are as follows: 1) non-rectilinear single shaft reciprocating cannula, 2) sonic or ultrasonic energy delivered to the distal tip, 3) rectilinear reciprocating cannula with ultrasonic energy along the shaft from the handle, and 4) any of the above reciprocating components powered by excess unused vacuum capacity in the liposuction aspirator (suction engine) apparatus.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: October 28, 2003
    Assignee: The Regents of the University of California
    Inventors: Paul J. Weber, Steven R. Visuri, Matthew J. Everett, Luiz B. Da Silva, Alwin H. Kolster
  • Liposuction cannula device and method
    Publication number: 20030187383
    Abstract: A liposuction apparatus and method optionally having a sonic or ultrasonic source with an axial lumen passage in which the shaft can be made to reciprocate (oscillate) in a non-rectilinear fashion. The apparatus may also contain the concomitant use of rectilinear reciprocation motion in addition to ultrasonic motion or energy along the shaft of the apparatus. The advantages of the liposuction apparatus are as follows: 1) non-rectilinear single shaft reciprocating cannula, 2) sonic or ultrasonic energy delivered to the distal tip, 3) rectilinear reciprocating cannula with ultrasonic energy along the shaft from the handle, and 4) any of the above reciprocating components powered by excess unused vacuum capacity in the liposuction aspirator (suction engine) apparatus.
    Type: Application
    Filed: April 30, 2003
    Publication date: October 2, 2003
    Applicant: The Regents of the University of California
    Inventors: Paul J. Weber, Steven R. Visuri, Matthew J. Everett, Luiz B. Da Silva, Alwin H. Kolster
  • Liposuction cannula device and method
    Publication number: 20020151874
    Abstract: A liposuction apparatus and method that uses a rotating or rotationally oscillating cannula. The advantages of the liposuction apparatus are as follows: reduced need for surgeon's arm motion and stress, reduced operating time, and increased fat volume removal per unit of instrument time use.
    Type: Application
    Filed: April 12, 2001
    Publication date: October 17, 2002
    Inventors: Alwin H. Kolster, Jeffrey A. Kolster, Paul J. Weber, Luiz B. Da Silva