75 results about "Selective stimulation" patented technology

Apparatus and method for the treatment of congestive heart failure are disclosed that utilize a cuff that surrounds the heart and constrains cardiac dilation, while electrodes embedded in the cuff stimulate the myocardium to contractile function. An EKG signal can be processed to create an optimal pattern of selective stimulation of different areas of the heart at different times. An implantable circuit contains a power source and stimulation circuits. In some embodiments, a telemetry unit and an EKG collection circuit are also included. In accordance with the present disclosure, cuff limits the dilation of the heart and the stimulation electrodes enhance ventricular function by optimizing ventricular contractility.

Systems and methods selectively stimulate components of the pudendal nerve away from the sacral root to evoke desired physiologic responses in persons who lack the ability to otherwise produce these responses—e.g., maintain continence and/or produce micturition, and/or provide male/female sexuality responses, and/or provide bowel responses. The systems and methods use a multiple electrode array, or individual electrodes, placed on, in, or near the pudendal nerve. The electrode array, or individual electrodes, in association with a pulse generator, provide selective stimulation of individual fascicles within the pudendal nerve, to achieve different physiologic responses.

Devices, systems and methods are provided for simultaneously stimulating the spinal anatomy at various locations, such as spinal levels, along the spinal cord. By stimulating multiple levels of the spinal column with the use of a single device, a single access path is created to an implantable pulse generator (IPG) rather than individual access paths for each lead at each spinal level to an IPG. By reducing the number of pathways, the procedure complexity, time and recovery are reduced. In addition, some embodiments provide additional specificity within each targeted level, such as selective stimulation of specific tissue, such as the dorsal root ganglion.

Systems, methods and devices are provided for the targeted treatment of a variety of medical conditions by directly neuromodulating a target anatomy associated with the condition while minimizing or excluding undesired neuromodulation of other anatomies. Typically, the target anatomy includes one or more dorsal root ganglia, dorsal roots, dorsal root entry zones, or portions thereof. Such target stimulation areas are utilized due in part to their effect on the sympathetic nervous system.

An apparatus and method for enabling selective stimulation of oculomotor reflexes involved in retinal image stability. The apparatus enables real-time modification of auditory and visual stimuli according to the patient's head movements, and allows the generation of stimuli that integrate vestibular and visual reflexes. The use of accessories allow the modification of somatosensory stimuli to increase the selective capacity of the apparatus. The method involves generation of visual and auditory stimuli, measurement of patient response and modification of stimuli based on patient response. The apparatus and method may include a vestibular rehabilitation unit (VRU) and a remote training unit (RTU). Instructions may be transmitted from the VRU to the RTU, and information of detected responses may be transmitted from the RTU to the VRU.

Some embodiments of the present invention provide methods and systems for modulating neural tissue including systems and components for selective stimulation and/or neuromodulation of targeted neural tissue. Targeted neural tissue may include one or more ganglia including those of the spinal nerves in the dorsal root and the sympathetic chain. Methods also include implantation of an electrode on, in or around a dorsal root ganglia. Some other embodiments of the present invention provide methods for selective neurostimulation of one or more dorsal root ganglia as well as techniques for applying neurostimulation to the spinal cord. Still other embodiments of the present invention provide stimulation systems and components for selective stimulation and/or neuromodulation of one or more dorsal root ganglia through implantation of an electrode on, in or around a dorsal root ganglia in combination with a pharmacological agent.

Some embodiments of the present invention provide stimulation systems and components for selective stimulation and/or neuromodulation of one or more dorsal root ganglia through implantation of an electrode on, in or around a dorsal root ganglia. Some other embodiments of the present invention provide methods for selective neurostimulation of one or more dorsal root ganglia as well as techniques for applying neurostimulation to the spinal cord. Still other embodiments of the present invention provide stimulation systems and components for selective stimulation and/or neuromodulation of one or more dorsal root ganglia through implantation of an electrode on, in or around a dorsal root ganglia in combination with a pharmacological agent.

An apparatus and method for enabling selective stimulation of oculomotor reflexes involved in retinal image stability. The apparatus enables real-time modification of auditory and visual stimuli according to the patient's head movements, and allows the generation of stimuli that integrate vestibular and visual reflexes. The use of accessories allow the modification of somatosensory stimuli to increase the selective capacity of the apparatus. The method involves generation of visual and auditory stimuli, measurement of patient response and modification of stimuli based on patient response.

Wellbore tubulars including selective stimulation ports (SSPs) sealed with sealing devices and methods of operating the same are disclosed herein. The wellbore tubulars include a tubular body that defines a tubular conduit and a plurality of selective stimulation ports. Each selective stimulation port includes an SSP conduit and a sealing device seat. The wellbore tubulars further include a plurality of sealing devices. Each sealing device includes a primary sealing portion that is seated on a corresponding sealing device seat and forms a primary seal with the corresponding sealing device seat. Each sealing device also includes a secondary sealing portion that extends from the primary sealing portion and forms a secondary seal between the primary sealing portion and the corresponding sealing device seat. The methods include methods of stimulating a subterranean formation utilizing the wellbore tubulars.

Some embodiments of the present invention provide methods of neurostimulating targeted neural tissues. Also described are stimulation systems and components for selective stimulation and/or neuromodulation of one or more dorsal root ganglia through implantation of an electrode on, in or around a dorsal root ganglia. Some other embodiments of the present invention provide methods for selective neurostimulation of one or more dorsal root ganglia as well as techniques for applying neurostimulation to the spinal cord. Still other embodiments of the present invention provide stimulation systems and components for selective stimulation and/or neuromodulation of one or more dorsal root ganglia through implantation of an electrode on, in or around a dorsal root ganglia in combination with a pharmacological agent.

The invention discloses a programmable optical fiber mode stimulation and coupling method, and belongs to the field of optical communication. The programmable optical fiber mode stimulation and coupling method comprises the steps that (1) a light beam given out by a first single-mode optical fiber passes through a first collimation lens; (2) the light beam is divided into polarized light in the horizontal direction and polarized light in the perpendicular direction through a polarization beam splitter, the polarized light in the horizontal direction and polarized light in the perpendicular direction pass through a Faraday activizer, a half-wave plate and silicon-based liquid crystal to be stimulated to form high-order mode light beams in sequence; (3) the high-order mode light beams are respectively reflected to be horizontally input into the polarization beam splitter, beam combination is carried out, and a combined light beam of a high-order mode is output; (4) the combined light beam is input into a beam combiner in the horizontal direction, a light beam given out by a second single-mode optical fiber passes through a second collimation lens, and is input into the beam combiner in the perpendicular direction, and the light beam and the combined light beam which is input into the beam combiner, is input into the beam combiner in the horizontal direction and is of the high-order mode are together output from the beam combiner, and enter a few-mode optical fiber after being coupled through a focusing lens. Due to the facts that phase modulation is carried out on a light field through the silicon-based liquid crystal, and the voltage of each pixel of the silicon-based liquid crystal can be controlled through programming, high-accuracy selective stimulation of any high-order mode can be achieved, and meanwhile the function of polarization multiplexing and the function of mode multiplexing can be achieved.