Patents by Inventor Yupeng Ren

Yupeng Ren 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: 8795139
    Abstract: This invention provides a lower-limb off-axis movement training apparatus, which is mounted on the movement part of a sagittal plane exercise machine and allows the user to perform off-axis movement training during sagittal plane functional movements. The said apparatus for the lower limb off-axis training consists of a base, an off-axis movement generating part mounted on the base, and a foot container supported by the off-axis movement generating part. The said off-axis movement generating part comprising at least one of the following two: (1) off-axis pivoting generating part, which generates the pivoting movement of the foot container; (2) off-axis sliding generating part, which generates the sliding movement of the foot container. A feedback training system including the said training apparatus is provided. While the user performs sagittal plane movements of the lower limbs, the said system provides off-axis movement training integrated with the sagittal plane movements.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: August 5, 2014
    Assignee: Rehabtek LLC
    Inventors: Li-Qun Zhang, Yupeng Ren
  • Patent number: 8636627
    Abstract: Anterior cruciate ligament (ACL) is the most commonly injured knee ligament in sports-related activities, especially in pivoting sports. Considering that the knee is free to flex/extend but has much more limited motions about the off-axes (tibial rotation and valgus/varus), ACL injuries are often associated with excessive off-axis loadings. A pivoting/sliding mechanism combined with sagittal plane movement/exercise is described as a diagnostic tool to evaluate off-axis neuromechanical and anatomical risk factors of noncontact ACL injuries. The pivoting/sliding mechanism is also described as an intervention tool for off-axis training, possibly based on the diagnosis, to reduce the incidence of ACL injuries. Training outcome can also be evaluated using the pivoting/sliding mechanism. In general, the pivoting/sliding mechanism can be used with many sagittal plane exercise machines and used to improve off-axis control of the lower limbs and reduce lower limb injuries.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: January 28, 2014
    Assignee: Rehabtek LLC
    Inventors: Li-Qun Zhang, Hyung-Soon Park, Yupeng Ren
  • Patent number: 8317730
    Abstract: This patent describes an 8+2 degrees of freedom (DOF) intelligent rehabilitation robot capable of controlling the shoulder, elbow, wrist and fingers individually and allowing functional arm movements with accompanying trunk and scapular motions.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: November 27, 2012
    Assignee: Rehabtek LLC
    Inventors: Li-Qun Zhang, Hyung-Soon Park, Yupeng Ren
  • Publication number: 20120172176
    Abstract: This invention provides a lower-limb off-axis movement training apparatus, which is mounted on the movement part of a sagittal plane exercise machine and allows the user to perform off-axis movement training during sagittal plane functional movements. The said apparatus for the lower limb off-axis training consists of a base, an off-axis movement generating part mounted on the base, and a foot container supported by the off-axis movement generating part. The said off-axis movement generating part comprising at least one of the following two: (1) off-axis pivoting generating part, which generates the pivoting movement of the foot container; (2) off-axis sliding generating part, which generates the sliding movement of the foot container. A feedback training system including the said training apparatus is provided. While the user performs sagittal plane movements of the lower limbs, the said system provides off-axis movement training integrated with the sagittal plane movements.
    Type: Application
    Filed: December 30, 2009
    Publication date: July 5, 2012
    Applicant: REHABTEK LLC
    Inventors: Li-Qun Zhang, Yupeng Ren
  • Publication number: 20120165158
    Abstract: In respects of limitations and problems of motor function training devices, the present invention provides a wearable and convertible device and a method for controlling combined motor function training. This device integrates the functions of both passive stretching function in the existing CPM devices and additional active assistive training function. Without a force/torque sensor element in the device, the present passive stretching control can still be adapted to hypertonia (high muscle tone or stiffness of joints) of the limb, and the present active assistive control can still be implemented for enhancing voluntary active movement from patients. With such present method, much more applications of active assistive training are supported at substantially no additional cost. On the other hand, the safety of such stretching devices without using force/torque sensor is improved, which assists in increasing the efficiency of the device of the present invention.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 28, 2012
    Applicant: REHABTEK LLC.
    Inventors: Yupeng Ren, Li-Qun Zhang
  • Patent number: 7998094
    Abstract: An apparatus and method for examining fiber tension, fiber stress, sarcomere length, etc. in muscle fibers and tension and stress in ligament or tendon tissues as well as brain or nerve fibers by applying a lifting force to lift the fiber or tissue a lifting distance, measuring the lifting force and distance and calculating the axial tension on the fiber bundle or tissue. The apparatus and method also make it possible to illuminate and view the fiber bundle or tissue to examine and characterize visually observable properties.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: August 16, 2011
    Assignee: Rehabilitation Institute of Chicago
    Inventors: Li-Qun Zhang, Yi-Ning Wu, Yupeng Ren
  • Publication number: 20100145233
    Abstract: Anterior cruciate ligament (ACL) is the most commonly injured knee ligament in sports-related activities, especially in pivoting sports. Considering that the knee is free to flex/extend but has much more limited motions about the off-axis (tibia rotation and valgus/varus), ACL injuries are often associated with excessive off-axis loadings. A pivoting/sliding mechanism combined with sagittal plane movement/exercise is described as a diagnostic tool to evaluate off-axis neuromechanical and anatomical risk factors of noncontact ACL injuries. The pivoting/sliding mechanism is also described as an intervention tool for off-axis training, possibly based on the diagnosis, to reduce the incidence of ACL injuries. Training outcome can also be evaluated using the pivoting/sliding mechanism. In general, the pivoting/sliding mechanism can be used with many sagittal plane exercise machines and used to improve off-axis control of the lower limbs and reduce lower limb injuries.
    Type: Application
    Filed: March 24, 2008
    Publication date: June 10, 2010
    Applicant: REHABTEK LLC
    Inventors: Li-Qun Zhang, Hyung-Soon Park, Yupeng Ren
  • Publication number: 20100106059
    Abstract: A pocket neuromuscular evaluator delivers controlled tendon taps, makes quantitative measures of the taps and the reflex responses invoked, evaluates not only the neurological reflexes but also the muscle-joint properties, analyzes the data, displays the results, and records them to provide quantitative characterizations of the neuromuscular and joint properties.
    Type: Application
    Filed: March 24, 2008
    Publication date: April 29, 2010
    Applicant: REHABTEK LLC
    Inventors: Li-Qun Zhang, Hyung-Soon Park, Yupeng Ren
  • Publication number: 20100016766
    Abstract: This patent describes an 8+2 degrees of freedom (DOF) intelligent rehabilitation robot capable of controlling the shoulder, elbow, wrist and fingers individually and allowing functional arm movements with accompanying trunk and scapular motions.
    Type: Application
    Filed: February 15, 2008
    Publication date: January 21, 2010
    Applicant: REHABTEK LLC
    Inventors: Li-Qun Zhang, Hyung-Soon Park, Yupeng Ren