Patent
Flexible Communication and Control Protocol for a Wireless Sensor and Microstimulator Network
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TLDR
In this article, the authors proposed a novel system and method for restoring functional movement of a paralyzed limb(s) or a prosthetic device by stimulating one or more muscles of a patient using an implanted neuromuscular implants.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.read more
Citations
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Implantable Transponder Systems and Methods
TL;DR: In this article, a method and system for providing electrical stimulation to tissue includes implanting one or more battery-free microtransponders having spiral antennas into tissue, where energy is provided wirelessly to the plurality of microtransmoders.
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TL;DR: In this article, a leadless pacing device (hereinafter, "LPD") is configured for implantation in a ventricle of a heart of a patient, and is configured to switch between an atrio-ventricular synchronous pacing mode and an asynchronous ventricular pacing mode in response to detection of one or more sensing events, which may be, for example, undersensing events.
References
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Patent
Worldwide patient location and data telemetry system for implantable medical devices
TL;DR: In this paper, a system for communicating with a medical device (10) implanted in an ambulatory patient and for locating the patient in order to selectively monitor device function, alter device operating parameters and modes and provide emergency assistance to and communications with a patient (10).
Patent
Structure and method of manufacture of an implantable microstimulator
TL;DR: An implantable microstimulator is a structure which is manufactured to be substantially encapsulated within a hermetically-sealed housing inert to body fluids, and of a size and shape capable of implantation in a living body, by expulsion through a hypodermic needle as mentioned in this paper.
Journal ArticleDOI
A neuro-stimulus chip with telemetry unit for retinal prosthetic device
Wentai Liu,K. Vichienchom,M. Clements,S.C. DeMarco,C. Hughes,E. McGucken,Mark S. Humayun,E. de Juan,James D. Weiland,Robert J. Greenberg +9 more
TL;DR: A microchip which serves as the telemetry protocol decoder and stimulus signal generator is fabricated by MOSIS with 1.2-mm CMOS technology and was demonstrated to provide the desired biphasic current stimulus pulses for an array of 100 retinal electrodes at video frame rates.
Patent
Implantable device having an electrolytic storage electrode
TL;DR: An electrolytic, capacitive electrode, adapted to be disposed in body fluids when implanted, is used to store electrical energy for use in providing electrical energy to at least a portion of the internal electrical circuitry of an implantable device as mentioned in this paper.
Patent
Posture and device orientation sensing and calibration for implantable medical devices
TL;DR: In this paper, a method of and apparatus for determining the physical posture of a patient's body, having a superior-inferior body axis, an anterior-posterior and a lateral-medial body axis in relation to earth's gravitational field, is presented, where the actual pitch and roll angles of the sensitive axes of the accelerometers in the implanted IMD with respect to the true gravitational axes are determined and the yaw angles are determined or estimated.