Rehabilitation Institute of Chicago Patent applications |
Patent application number | Title | Published |
20150262076 | Ambulation Prediction Controller for Lower Limb Assistive Device - Embodiments of the systems and methods described herein relate to a control unit comprising a memory having stored thereon a feature database that includes feature data, a portion of which is labeled with a transition from an ambulation mode and a memory having stored thereon a pattern recognition controller that is trained using the labeled feature data, wherein the pattern recognition controller is configured to predict the ambulation mode of an assistive device and the control unit is configured to communicate with sensors coupled to the assistive device. | 09-17-2015 |
20150127119 | Impedance Parameter Power Control for Lower Limb Assistive Device - Systems and methods are described that relate to the control of a powered lower limb assistive device with one or more joints, where a controller of the assistive device is configured to receive one or more user-generated signals, determine control information using information in the one or more user-generated signals, select one or more joint impedance parameters of the assistive device for adjustment, and, for a mode and state of the assistive device, adjust the selected joint impedance parameters as a function of the control information. Additionally, systems and methods are described that relate to the control of such an assistive device, where a controller of the assistive device is configured to receive one or more user-generated signals containing information about the ankle angle of the assistive device, and adjust the stiffness of the ankle joint of the assistive device as a function of the ankle angle. | 05-07-2015 |
20140364962 | EFFECTIVE SHAPE CONTROLLER FOR LOWER LIMB - Systems and methods for improved control of a lower limb device are disclosed. The lower limb may have one or more joints and one or more corresponding motors. In some embodiments, a center of pressure is calculated in order to enforce virtual constraints at the one or more joints of the lower limb device. The system utilizes one or more effective shapes, and each effective shape's corresponding error, in order to cause each joint motor to produce a torque that causes the joint to move according to a virtual constraint. The systems and methods result in improved control of lower limb devices. | 12-11-2014 |
20140276454 | STRESS SHIELD AND INFECTION CONTROL FOR A SKIN-IMPLANT INTERFACE - Embodiments for superficial tissue compliance modulation and negative pressure wound therapy for stabilization of a chronic percutaneous implant are disclosed. An external cap is coupled to a compliance gradient of progressively decreasing stiffness. Together the external cap and compliance gradient act as a stress shield that allows forces that would otherwise act on the skin at the skin-implant interface to be dissipated over a larger area. In addition, negative pressure and fluids may be applied through negative pressure and fluid adapters, respectively, to the skin-implant interface, the status of which may be further monitored through the use of one or more sensors. | 09-18-2014 |
20140275846 | NEUROMECHANICAL ALGOMETER - Systems and methods for the diagnosis of chronic pain are disclosed. An algometer comprising a pressure sensor and electrode is disclosed. The algometer may be used to measure pressure applied by a clinician at a location on a patient's body, along with EMG signals emanating from the same location of the patient. Further, a pain trigger operable by the patient may be used in coordination with the algometer. Data from the algometer and pain trigger are transmitted to a computing device and display for rendering and analysis of patient data, leading to improved diagnosis. | 09-18-2014 |
20140081425 | GRIPPING DEVICE WITH SWITCHABLE OPENING MODES - A gripping device that comprises a first moveable jaw and a second fixed jaw is disclosed. The gripping device has a handle operatively engaged to the first moveable jaw and a connecting link operatively engaged to the first moveable jaw. The connecting link is positioned in at least one of a first position or a second position. The change in the position of the connecting link allows the gripping device to have either a default closed position or a default open position, which can be defined by voluntarily-open or voluntary-close modes of operation, respectively. The first moveable jaw moves in either of the modes of operation. The change in the mode of operation is accomplished through use of a connecting link that is passed through a singularity during the switching process to achieve the different output positions and directions. | 03-20-2014 |
20140032462 | SYSTEMS AND METHODS FOR AUTOCONFIGURATION OF PATTERN-RECOGNITION CONTROLLED MYOELECTRIC PROSTHESES - Embodiments of the invention provide for a prosthesis guided training system that includes a plurality of sensors for detecting electromyographic activity. A computing device, which can include a processor and memory, can extract data from the electromyographic activity. A real-time pattern recognition control algorithm and an autoconfiguring pattern recognition training algorithm can be stored in the memory. The computing device can determine movement of a prosthesis based on the execution of the real-time pattern recognition control algorithm. The computing device can also alter operational parameters of the real-time pattern recognition control algorithm based on execution of the autoconfiguring pattern recognition training algorithm. | 01-30-2014 |
20130046394 | SYSTEMS AND METHODS OF MYOELECTRIC PROSTHESIS CONTROL - Embodiments of the invention provides myoelectric prosthesis control system that include a gel liner that has a plurality of layers and a plurality of leads at least partially positioned between the plurality of layers. In addition, a plurality of electrodes can be coupled to the leads and portions of the electrodes can also be positioned between the plurality of layers. At least some of the electrodes can include an electrode pole that is configured to contract the residual limb to detect electromyographic signals. | 02-21-2013 |
20090275867 | WALKING AND BALANCE EXERCISE DEVICE - A pelvic support unit is coupled to a base by a powered vertical force actuator mechanism. A torso support unit, which is affixed to the patient independently of the pelvic support unit, is connected to the base by one or more powered articulations which are actuable around respective axes of motion. Sensors sense the linear and angular displacement of the pelvic support unit and the torso support unit. A control unit is coupled to these sensors and, responsive to signals from them, selectively control the displacement actuator and articulation(s). | 11-05-2009 |