The present disclosure is directed to a system and method for selectively and reversibly modulating targeted neural and non-neural tissue of a nervous system for the treatment of pain. An electrical stimulation is delivered to the treatment site that selectively and reversibly modulates the targeted neutral- and non-neural tissue of the nervous structure, inhibiting the perception of pain while preserving other sensory and motor function, and proprioception.

Conventional devices deliver a degree of electrical charge into biological tissues; —to satisfy regulatory and safety concerns, measures are taken to maintain a zero-charge residual at the stimulation site.

Disclosed herein is a method of controlling electrical energy provided by a stimulation device to one or stimulation electrodes comprised in the device, the device including: a first stimulation electrode; a pulse energy controller for transferring electrical energy as one or more electrical stimulation pulses to the first stimulation electrode; the pulse energy controller further including two or more stimulation energy supplies for each supplying electrical energy substantially concurrently to the first stimulation electrode as a first pulse; and each supplying electrical energy separately to the first stimulation electrode as a second pulse.

A simpler, more accurate and less-expensive control of stimulation may be provided by considering each energy supply as an energy building block, which may be selected as required.

Passive tissue biasing circuitry in an Implantable Pulse Generator (IPG) is disclosed to facilitate the sensing of neural responses by holding the voltage of the tissue to a common mode voltage (Vcm). The IPG's conductive case electrode, or any other electrode, is passively biased to Vcm using a capacitor, as opposed to actively driving such electrode to a prescribed voltage using a voltage source. Once Vcm is established, voltages accompanying the production of stimulation pulses will be referenced to Vcm, which eases neural response sensing. An amplifier can be used to set a virtual reference voltage and to limit the amount of current that flows to the case during the production of Vcm. Circuitry can be used to monitor the virtual reference voltage to enable sensing neural responses, and to set a compliance voltage for the current generation circuitry.

A method of treating a mental disorder of a patient includes generating, by an implantable stimulator configured to be implanted beneath a skin surface of the patient, stimulation sessions at a duty cycle that is less than 0.05 and applying, by the implantable stimulator in accordance with the duty cycle, the stimulation sessions to a tissue location associated with the mental disorder. The duty cycle is a ratio of T3 to T4. Each stimulation session included in the stimulation sessions has a duration of T3 minutes and occurs at a rate of once every T4 minutes. The implantable stimulator is powered by a primary battery located within the implantable stimulator and having an internal impedance greater than 5 ohms.

The present disclosure provides an electrical stimulation device. The electrical stimulation device includes a signal receiving circuit and a signal processing circuit. The signal receiving circuit receives and outputs a frequency signal. The signal processing circuit receives the frequency signal and provides an electrical stimulation signal according to the frequency signal.

An electrical stimulation device includes a signal receiving circuit, a rectifying circuit and a signal processing circuit. The signal receiving circuit receives and outputs a frequency signal. The rectifying circuit receives the frequency signal and rectifies the frequency signal to generate a rectifying signal. The signal processing circuit receives the rectifying signal to generate an electrical stimulation signal.

Articles and methods for non-invasively treating peripheral neuropathy via transcutaneous electrical stimulation of target nerve tissue are described. An exemplary article includes a support on which an electrode pair is positioned; a controller attached to the electrode pair via one or more leads; and a power supply connected to the controller. The article delivers electrical stimulation to the target nerve tissue via the electrode pair at a level sufficient to initiate vasodilation of vasculature within or adjacent the tissue. Meanwhile, the method includes positioning at least one electrode pair adjacent an area of skin overlying or in close proximity to the target nerve tissue and delivering electrical stimulation to the tissue via the electrode pair. The electrical stimulation is delivered at a level sufficient to initiate vasodilation of vasculature within or adjacent the tissue. An implantable system and method for treating peripheral neuropathy via percutaneous electrical stimulation are also described.

A system and method for treating pain without paresthesia by spinal cord stimulation.

Systems and methods for the efficient use of an implantable pulse generator (IPG) battery are disclosed. A representative system for adjusting an electrical signal of an IPG associated with delivering therapy to a patient comprises a computer readable medium having instructions that cause the IPG to deliver a supply voltage at a first value, adjust the supply voltage from the first value until a threshold break occurs, and, based at least in part of the threshold break, increase the supply voltage from the second value to a third value. As therapy is delivered to the patient, the system iteratively adjusts the supply voltage to approach and reflect a variable minimum voltage needed to provide the requested current to the IPG.

Described is a low voltage, pulsed electrical stimulation device for controlling expression of klotho, a useful protein, by tissues. Also described are methods of enhancing expression of klotho in cells.