Patents by Inventor Heidrun G. Ragnarsdóttir

Heidrun G. Ragnarsdóttir 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: 9271851
    Abstract: Systems and methods for sensing actuating a prosthetic ankle are disclosed. In one example, the system, such as an actuated prosthetic ankle joint, detects that the user has moved to a relaxed position, such as sitting, reclining, crawling, or leaning. In response, the actuated prosthetic ankle joint actively adjusts the angle between the members of the ankle to a relaxed state. The system may further detect when the user has moved to exit the relaxed position, and may actively adjust the angle between the members of the ankle to an exit state.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: March 1, 2016
    Assignee: Össur hf.
    Inventors: Arinbjörn V. Clausen, Heidrun G. Ragnarsdottir, Helgi Jonsson
  • Publication number: 20150265429
    Abstract: Control systems and methods are disclosed for processing a time series of signals associated with the movement of a device associated with a limb. The time series of motion signals is filtered, such as thorough an autoregressive filter, and compared to stored data sets representing a limb-motion event and/or phase. In certain examples, a plurality of accelerometers generate the time series of motion signals based at least on acceleration measurements in three orthogonal directions and/or planes. The acceleration measurements may relate to the movement of an artificial limb, such as a prosthetic or orthotic device. Upon determining an event and/or phase of limb motion, the control system may trigger an actuator to appropriately adjust one or more prosthetic or orthotic joints.
    Type: Application
    Filed: June 8, 2015
    Publication date: September 24, 2015
    Inventors: Helgi Jónsson, Arinbjörn Viggo Clausen, Heidrun G. Ragnarsdottir
  • Patent number: 9078774
    Abstract: Control systems and methods are disclosed for processing a time series of signals associated with the movement of a device associated with a limb. The time series of motion signals is filtered, such as thorough an autoregressive filter, and compared to stored data sets representing a limb-motion event and/or phase. In certain examples, a plurality of accelerometers generate the time series of motion signals based at least on acceleration measurements in three orthogonal directions and/or planes. The acceleration measurements may relate to the movement of an artificial limb, such as a prosthetic or orthotic device. Upon determining an event and/or phase of limb motion, the control system may trigger an actuator to appropriately adjust one or more prosthetic or orthotic joints.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: July 14, 2015
    Assignee: Össur hf
    Inventors: Helgi Jónsson, Arinbjörn Viggo Clausen, Heidrun G. Ragnarsdóttir
  • Publication number: 20110224804
    Abstract: Systems and methods for sensing actuating a prosthetic ankle are disclosed. In one example, the system, such as an actuated prosthetic ankle joint, detects that the user has moved to a relaxed position, such as sitting, reclining, crawling, or leaning. In response, the actuated prosthetic ankle joint actively adjusts the angle between the members of the ankle to a relaxed state. The system may further detect when the user has moved to exit the relaxed position, and may actively adjust the angle between the members of the ankle to an exit state.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 15, 2011
    Applicant: Ossur hf
    Inventors: Arinbjörn V. Clausen, Heidrun G. Ragnarsdottir, Helgi Jonsson
  • Publication number: 20110106274
    Abstract: A system and method associated with the movement of a limb. In one example, the system, such as a prosthetic or orthotic system, includes an actuator that actively controls, or adjusts, the angle between a foot unit and a lower limb member. A processing module may control movement of the actuator based on data obtained from a sensor module. For instance, sensing module data may include information relating to the gait of a user and may be used to adjust the foot unit to substantially mimic the movement of a natural, healthy ankle. The system may further accommodate, for example, level ground walking, traveling up/down stairs, traveling up/down sloped surfaces, and various other user movements. In addition, the processing module may receive user input or display output signals through an external interface. For example, the processing module may receive a heel height input from the user.
    Type: Application
    Filed: September 27, 2010
    Publication date: May 5, 2011
    Applicant: OSSUR HF
    Inventors: Heidrun G. Ragnarsdottir, Arinbjorn V. Clausen, Hjordis Thorhallsdottir, Helgi Jonsson
  • Patent number: 7896927
    Abstract: Systems and methods for sensing actuating a prosthetic ankle are disclosed. In one example, the system, such as an actuated prosthetic ankle joint, detects that the user has moved to a relaxed position, such as sitting, reclining, crawling, or leaning. In response, the actuated prosthetic ankle joint actively adjusts the angle between the members of the ankle to a relaxed state. The system may further detect when the user has moved to exit the relaxed position, and may actively adjust the angle between the members of the ankle to an exit state.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: March 1, 2011
    Assignee: Össur hf.
    Inventors: Arinbjörn V. Clausen, Heidrun G. Ragnarsdottir, Helgi Jonsson
  • Publication number: 20100324456
    Abstract: Control systems and methods are disclosed for processing a time series of signals associated with the movement of a device associated with a limb. The time series of motion signals is filtered, such as thorough an autoregressive filter, and compared to stored data sets representing a limb-motion event and/or phase. In certain examples, a plurality of accelerometers generate the time series of motion signals based at least on acceleration measurements in three orthogonal directions and/or planes. The acceleration measurements may relate to the movement of an artificial limb, such as a prosthetic or orthotic device. Upon determining an event and/or phase of limb motion, the control system may trigger an actuator to appropriately adjust one or more prosthetic or orthotic joints.
    Type: Application
    Filed: August 12, 2010
    Publication date: December 23, 2010
    Applicant: OSSUR HF
    Inventors: Helgi Jónsson, Arinbjörn Viggo Clausen, Heidrun G. Ragnarsdóttir
  • Patent number: 7811333
    Abstract: Control systems and methods are disclosed for processing a time series of signals associated with the movement of a device associated with a limb. The time series of motion signals is filtered, such as thorough an autoregressive filter, and compared to stored data sets representing a limb-motion event and/or phase. In certain examples, a plurality of accelerometers generate the time series of motion signals based at least on acceleration measurements in three orthogonal directions and/or planes. The acceleration measurements may relate to the movement of an artificial limb, such as a prosthetic or orthotic device. Upon determining an event and/or phase of limb motion, the control system may trigger an actuator to appropriately adjust one or more prosthetic or orthotic joints.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: October 12, 2010
    Assignee: Ossur hf
    Inventors: Helgi Jónsson, Arinbjörn Viggo Clausen, Heidrun G. Ragnarsdóttir
  • Patent number: 7811334
    Abstract: A system and method associated with the movement of a limb. In one example, the system, such as a prosthetic or orthotic system, includes an actuator that actively controls, or adjusts, the angle between a foot unit and a lower limb member. A processing module may control movement of the actuator based on data obtained from a sensor module. For instance, sensing module data may include information relating to the gait of a user and may be used to adjust the foot unit to substantially mimic the movement of a natural, healthy ankle. The system may further accommodate, for example, level ground walking, traveling up/down stairs, traveling up/down sloped surfaces, and various other user movements. In addition, the processing module may receive user input or display output signals through an external interface. For example, the processing module may receive a heel height input from the user.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: October 12, 2010
    Assignee: Ossur HF.
    Inventors: Heidrun G. Ragnarsdottir, Arinbjorn V. Clausen, Hjordis Thorhallsdottir, Helgi Jonsson
  • Patent number: 7637959
    Abstract: System and method for adjusting the angle of a prosthetic ankle are disclosed. In one example, the system, such as an actuated prosthetic ankle joint, detects the surface angle and actively adjusts the members of the ankle to a preferred angle according to the respective slope of the incline/decline.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: December 29, 2009
    Assignee: Össur hf
    Inventors: Arinbjörn V. Clausen, Heidrun G. Ragnarsdottir, Helgi Jonsson, Paul MacDonald
  • Patent number: 7637957
    Abstract: A system and method associated with the movement of a limb. In one example, the system, such as a prosthetic or orthotic system, includes an actuator that actively controls, or adjusts, the angle between a foot unit and a lower limb member. A processing module may control movement of the actuator based on data obtained from a sensor module. For instance, sensing module data may include information relating to the gait of a user and may be used to adjust the foot unit to substantially mimic the movement of a natural, healthy ankle. The system may further accommodate, for example, level ground walking, traveling up/down stairs, traveling up/down sloped surfaces, and various other user movements. In addition, the processing module may receive user input or display output signals through an external interface. For example, the processing module may receive a heel height input from the user.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: December 29, 2009
    Assignee: Össur hf
    Inventors: Heidrun G. Ragnarsdottir, Arinbjorn V. Clausen, Hjordis Thorhallsdottir, Helgi Jonsson
  • Patent number: 7431737
    Abstract: A system and method associated with the movement of a limb. In one example, the system, such as a prosthetic or orthotic system, includes an actuator that actively controls, or adjusts, the angle between a foot unit and a lower limb member. A processing module may control movement of the actuator based on data obtained from a sensor module. For instance, sensing module data may include information relating to the gait of a user and may be used to adjust the foot unit to substantially mimic the movement of a natural, healthy ankle. The system may further accommodate, for example, level ground walking, traveling up/down stairs, traveling up/down sloped surfaces, and various other user movements. In addition, the processing module may receive user input or display output signals through an external interface. For example, the processing module may receive a heel height input from the user.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: October 7, 2008
    Assignee: Össur hf.
    Inventors: Heidrun G. Ragnarsdottir, Arinbjorn V. Clausen, Hjordis Thorhallsdottir, Helgi Jonsson
  • Publication number: 20080215161
    Abstract: A system and method associated with the movement of a limb. In one example, the system, such as a prosthetic or orthotic system, includes an actuator that actively controls, or adjusts, the angle between a foot unit and a lower limb member. A processing module may control movement of the actuator based on data obtained from a sensor module. For instance, sensing module data may include information relating to the gait of a user and may be used to adjust the foot unit to substantially mimic the movement of a natural, healthy ankle. The system may further accommodate, for example, level ground walking, traveling up/down stairs, traveling up/down sloped surfaces, and various other user movements. In addition, the processing module may receive user input or display output signals through an external interface. For example, the processing module may receive a heel height input from the user.
    Type: Application
    Filed: May 8, 2008
    Publication date: September 4, 2008
    Applicant: Ossur HF
    Inventors: Heidrun G. Ragnarsdottir, Arinbjorn V. Calusen, Hjordis Thorhallsdottir, Helgi Jonsson