Patents by Inventor Francis Djian

Francis Djian 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: 10806601
    Abstract: Method for regulating a prosthesis (1), such as a knee prosthesis, ankle prosthesis or knee/ankle prosthesis, comprising at least one joint (2) controlled by an actuator (3) governed by a microcontroller (4) on the basis of data issuing from at least one gyroscope (5) and an accelerometer (6) that are able to measure the angular speed and the acceleration, respectively, of at least part of the prosthesis (1). According to the invention, the method is such that, during a defined period of time, the microcontroller (4) monitors the measurement given by the gyroscope (5), in such a way that said microcontroller (4) enters an idle state by reducing or by cutting the electrical power of at least one electronic organ of the prosthesis (1), except that of the accelerometer (6), when said microcontroller (4) detects that the absolute value of the measurement given by the gyroscope (5) is below a given threshold during the defined period of time.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: October 20, 2020
    Assignee: Proteor
    Inventors: Xavier Bonnet, Francis Djian
  • Patent number: 10335291
    Abstract: A prosthesis can include a femoral segment suitable for a femoral connection to a user and a tibial segment connected to the femoral segment based on an articulation which reproduces movements of the knee, the tibial segment being articulated on a foot segment based on an articulation reproducing movements of the ankle, a first hydraulic damper the ends of which are joined respectively with the femoral and tibial segments, and a second hydraulic damper of which the ends are joined respectively with the tibial and foot segments.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: July 2, 2019
    Assignee: PROTEOR
    Inventors: Xavier Bonnet, Francis Djian
  • Publication number: 20180133031
    Abstract: Method for regulating a prosthesis (1), such as a knee prosthesis, ankle prosthesis or knee/ankle prosthesis, comprising at least one joint (2) controlled by an actuator (3) governed by a microcontroller (4) on the basis of data issuing from at least one gyroscope (5) and an accelerometer (6) that are able to measure the angular speed and the acceleration, respectively, of at least part of the prosthesis (1). According to the invention, the method is such that, during a defined period of time, the microcontroller (4) monitors the measurement given by the gyroscope (5), in such a way that said microcontroller (4) enters an idle state by reducing or by cutting the electrical power of at least one electronic organ of the prosthesis (1), except that of the accelerometer (6), when said microcontroller (4) detects that the absolute value of the measurement given by the gyroscope (5) is below a given threshold during the defined period of time.
    Type: Application
    Filed: May 17, 2016
    Publication date: May 17, 2018
    Inventors: Xavier BONNET, Francis DJIAN
  • Publication number: 20150182354
    Abstract: The present invention pertains to a femoral knee-ankle prosthesis intended for persons who are lower-limb amputees but still have a segment suitable for a femoral connection and a tibial connection connected to the femoral segment based on an articulation which reproduces the movements of the knee, the said tibial segment being articulated on one foot based on an articulation reproducing the movements of the ankle, an initial damper the ends of which are joined respectively with the femoral and tibial segments, and another hydraulic damper of which the ends are joined respectively with the tibial and foot segment; the said prosthesis is remarkable in that the chamber of the first hydraulic damper is connected to the chamber of the second hydraulic damper and in that it consists of the means of controlling the first and/or second hydraulic damper depending on the phase of the walking cycle such as the stance phase or the swing phase and/or real-life situations such as stairs, slopes or standing, etc.
    Type: Application
    Filed: July 26, 2013
    Publication date: July 2, 2015
    Applicant: PROTEOR
    Inventors: Xavier Bonnet, Francis Djian