6 results about "Implantable Neurostimulators" patented technology

The present invention relates to a stimulation generator suitable for use in an implantable neurostimulator, including an injectable neurostimulator. The stimulation generator is adapted to provide a configurable stimulation signal comprising a component, such as a pulse. The stimulation generator comprises circuitry to receive and combine an amplitude control signal and a duty cycle signal to produce a preliminary output voltage signal which includes the component of the stimulation signal. It further comprises a voltage-controlled current source adapted to be driven by the preliminary output voltage signal; and a mode selector controlled by a stimulation mode signal to output the component from the preliminary output voltage signal as a current-controlled component of the stimulation signal via the voltage-controlled current source or as a voltage-controlled component of the stimulation signal.

Devices and systems for providing neurostimulation to a target location, may include an implantable neurostimulator device including a first transducer device that includes a gas matrix piezoelectric (GMP) array or a piezoelectric micromachined ultra-sound transducer (pMUT) array; the implantable neurostimulator device has a length of 5 mm to 20 mm and a diameter of 1 mm to 5 mm and an energy delivery device including a second transducer device; the second transducer device includes a gas matrix piezoelectric (GMP) array, a polymer matrix piezocomposite array, a capacitive micro-machined acoustic transducer (cMUT) array, or a pMUT ar-2024 / 097917 ray; and a beam-forming processor to cause the second transducer device to produce an acoustic wave, the implantable neurostimulator device is to receive the acoustic wave from the energy delivery device, convert the acoustic wave to an electrical energy signal, and apply the electrical energy signal.

The application discloses a closed-loop synergistic electrical stimulation system for diuresis and defecation dysfunction. The closed-loop synergistic electrical stimulation system comprises an implantable nerve stimulator, a bladder puncture probe electrode, a pressure sensor integrated with a tip for real-time acquisition of intravesical pressure signals, a sacral nerve stimulation electrode for implantation of sacral foramen to regulate micturition reflex and defecation reflex, the implantable nerve stimulator adjusts the pulse electrical stimulation output to the sacral nerve stimulation electrode to assist the user in urination according to the intravesical pressure signals collected by the pressure sensor, and the implantable nerve stimulator outputs pulse electrical stimulation to the sacral nerve stimulation electrode to assist the user in defecation in response to a manual trigger instruction issued by the user through an external program control instrument. The application realizes the integration and synergy of automatic regulation of micturition and manual assistance of defecation, adopts a single nerve stimulator two-drag-two design which can be implanted for a long time, and provides a safe and effective solution for diuresis and defecation dysfunction.

The application discloses a biodegradable vagus nerve stimulation system and a preparation method and application thereof, and belongs to the field of medical devices. The biodegradable vagus nerve stimulation system comprises an implantable vagus nerve stimulator and an external focused ultrasound emission device used in cooperation with the implantable vagus nerve stimulator. The implantable vagus nerve stimulator comprises an ultrasound-driven degradable friction nanogenerator and a vagus nerve interface lead. The biodegradable vagus nerve stimulation system provided by the application realizes wireless energy supply for the implantable device and vagus nerve stimulation by constructing an ultrasound-driven frictional electric energy conversion mechanism, and fundamentally solves the dependence of traditional implantable devices on built-in batteries.

A method of providing a sleep apnea nerve stimulation therapy to a subject may include detecting a respiratory waveform of the subject with a sensor. The sensor may be configured for coupling to the subject. The respiratory waveform may include a plurality of respiratory cycles each corresponding to at least one of a breath and an attempted breath of the subject. The method may also include identifying a breathing pattern within the respiratory waveform over a period of time. The breathing pattern may include a repeating pattern of a plurality of respiratory cycles followed by at least one respiratory cycle corresponding to a disordered breathing event. The method may also include generating a series of stimulation pulses with an implantable nerve stimulator configured for coupling to a hypoglossal nerve of the subject. The series of stimulation pulses may be coordinated with the breathing pattern.

The application relates to the technical field of medical products, and discloses a channel module and an implantable nerve stimulator. The channel module comprises a substrate, elastic conductive pieces and a module upper cover. The substrate is provided with a plurality of through holes for penetrating conductors. The elastic conductive pieces are installed on the substrate at intervals, and the elastic conductive pieces can be electrically connected to the conductors. The module upper cover is installed on the substrate and covers the elastic conductive pieces from above, and a channel for penetrating a wire is formed between the module upper cover and the elastic conductive pieces. The elastic conductive pieces replace the whole connector assembly in the prior art, the overall size of the channel module can be reduced, and the implantable nerve stimulator can be designed to be small.