Nuria Rodriguez

Bio: Nuria Rodriguez is an academic researcher from University of Southern California. The author has contributed to research in topics: Control system & Muscle contraction. The author has an hindex of 3, co-authored 4 publications receiving 76 citations.

Flexible Communication and Control Protocol for Injectable Neuromuscular Interfaces

Abstract: BION2 is a system based on injectable neuromuscular implants whose main goal is to restore the functional movement of paralyzed limbs. To achieve this objective, the functional requirements of the implanted interfaces include not only stimulation but also integrated sensors in order to detect patient intention, to provide servocontrol of muscle activation and to sense posture to inform more global motor planning and coordination. The technical constraints for managing the system include the efficient use of forward and reverse telemetry channels with limited capacity, minimization of adverse consequences from errors in data transmission or intermittent loss of power to the implants, and ability to adjust stimulation rates and phases to achieve efficient fine control of muscle force while minimizing fatigue. This paper describes a communication and control architecture with several novel features that address these requirements

Flexible Communication and Control Protocol for a Wireless Sensor and Microstimulator Network

Abstract: A novel system and method for restoring functional movement of a paralyzed limb(s) or a prosthetic device. Stimulating one or more muscles of a patient using an implanted neuromuscular implants and sensing the response of the stimulated muscle by the implants, wherein the sensing the response is not limited to data related to patient's movement intention, the posture, muscle extension, M-Wave and EMG. A communication and control protocol to operate the system safely and efficiently, use of forward and reverse telemetry channels having a limited bandwidth capacity, and minimizing the adverse consequences caused by errors in data transmission and intermittent loss of power to the implants. Adjusting stimulation rates and phases of the stimulator in order to achieve an efficient control of muscle force while minimizing fatigue and therefore providing for smooth movements and dynamic increase of the strength in patient's muscle contraction.

Communication and Control for Reanimating Paralyzed Limbs via a Network of Wireless Micro-Implants

Abstract: Functional reanimation of a paralyzed limb requires stimulation and sensing in multiple sites distributed throughout the limb. This paper describes a communication and control system for BION2™, a biomimetic system based on wireless, injectable neuromuscular implants that can detect the user’s intention, activate muscles and monitor the ensuing movements to support distributed feedback control with delays comparable to those achieved by the spinal cord. Various design features optimize the safety and efficacy of a system that must be reconfigurable to achieve many different clinical requirements despite highly constrained power and bandwidth.

Flexible communication and control for microstimulation network

Abstract: A novel system and method for restoring functional movement of a paralyzed limb(s) or a prosthetic device. Stimulating one or more muscles of a patient using an implanted neuromuscular implants and sensing the response of the stimulated muscle by the implants, wherein the sensing the response is not limited to data related to patient's movement intention, the posture, muscle extension, M-Wave and EMG. A communication and control protocol to operate the system safely and efficiently, use of forward and reverse telemetry channels having a limited bandwidth capacity, and minimizing the adverse consequences caused by errors in data transmission and intermittent loss of power to the implants. Adjusting stimulation rates and phases of the stimulator in order to achieve an efficient control of muscle force while minimizing fatigue and therefore providing for smooth movements and dynamic increase of the strength in patient's muscle contraction.

Implantable Transponder Systems and Methods

Abstract: A method and system for providing electrical stimulation to tissue includes implanting one or more battery-free microtransponders having spiral antennas into tissue. Energy is provided wirelessly to the plurality of microtransponders. Tissue is stimulated using the energy.

Analyte monitoring system and methods

Abstract: Methods and systems for providing data communication in medical systems are disclosed including a data communication unit to transmit one or more signals related to the monitored analyte level received from the analyte sensor to a remote device.

Method and Apparatus for Providing Data Processing and Control in a Medical Communication System

Abstract: Methods and apparatus for providing data processing and control for use in a medical communication system are provided.

Medical devices and methods

Abstract: Methods and devices to monitor an analyte in body fluid are provided. Embodiments include continuous or discrete acquisition of analyte related data from a transcutaneously positioned in vivo analyte sensor automatically or upon request from a user.

Method and system for providing calibration of an analyte sensor in an analyte monitoring system

Abstract: Method and apparatus for providing calibration of analyte sensor including applying a control signal, detecting a measured response to the control signal, determining a variance in the detected measured response, and estimating a sensor sensitivity based on the variance in the detected measured response is provided