Patents by Inventor Ryan Chessar

Ryan Chessar 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).

  • Knee ligament balancer
    Patent number: 8562617
    Abstract: An orthopaedic surgical device comprises a first sensor component and a second sensor component. Each sensor component includes a paddle set to contact a proximal tibia and a distal femur of a patient. The first sensor component and the second sensor component being movable with respect to one another to extend one paddle set beyond the other paddle set, and each paddle set includes cutouts for the clearance of the patellar tendon to avoid the need to evert the patella during use.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: October 22, 2013
    Assignee: DePuy Synthes Products, LLC
    Inventors: Ryan Chessar, James Drummond, Marc E. Ruhling
  • KNEE LIGAMENT BALANCER
    Publication number: 20120238911
    Abstract: An orthopaedic surgical device comprises a first sensor component and a second sensor component. Each sensor component includes a paddle set to contact a proximal tibia and a distal femur of a patient. The first sensor component and the second sensor component being movable with respect to one another to extend one paddle set beyond the other paddle set, and each paddle set includes cutouts for the clearance of the patellar tendon to avoid the need to avert the patella during use.
    Type: Application
    Filed: May 23, 2012
    Publication date: September 20, 2012
    Inventors: Ryan Chessar, James Drummond, Marc E. Ruhling
  • Knee ligament balancer
    Patent number: 8197489
    Abstract: An orthopaedic surgical device comprises a first sensor component and a second sensor component. Each sensor component includes a paddle set to contact a proximal tibia and a distal femur of a patient. The first sensor component and the second sensor component being movable with respect to one another to extend one paddle set beyond the other paddle set, and each paddle set includes cutouts for the clearance of the patellar tendon to avoid the need to avert the patella during use.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: June 12, 2012
    Assignee: DePuy Products, Inc.
    Inventors: Ryan Chessar, James Drummond, Marc E. Ruhling
  • KNEE LIGAMENT BALANCER
    Publication number: 20090326544
    Abstract: An orthopaedic surgical device comprises a first sensor component and a second sensor component. Each sensor component includes a paddle set to contact a proximal tibia and a distal femur of a patient. The first sensor component and the second sensor component being movable with respect to one another to extend one paddle set beyond the other paddle set, and each paddle set includes cutouts for the clearance of the patellar tendon to avoid the need to avert the patella during use.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 31, 2009
    Inventors: Ryan Chessar, James Drummond, Marc E. Ruhling