摘要:
Implantable leads implantable in a patient, such as patient's neck. The lead includes a first lead segment and a second lead segment. The second lead segment extends from the first lead segment at a first junction point and includes first, second, and third legs each defining a longitudinal length in extension from the first junction point to a distal end. A length of the first leg is greater than a length of the second leg, and a length of the second leg is greater than a length of the third leg. With this configuration, each of the legs are adapted to support at least one electrode at the distal end thereof, and are appropriately dimensioned relative to one another for locating the corresponding electrode at a desired target tissue site in the patient's neck. Targeted tissue can include, for example, muscles of the neck.
摘要:
The disclosure is directed to a method for implanting a medical device proximate to a target tissue site within an occipital region of a patient, such as proximate to an occipital nerve or a trigeminal nerve. The method comprises introducing an implant tool into a patient to define an insertion path to the target tissue site. The implant tool includes a shape memory cannula and a malleable needle at least partially disposed within an inner lumen of the cannula. The shape of the needle may be changed to accommodate different anatomical structures/features of the patient. Upon withdrawal of the needle from the cannula, the cannula may change shape, thereby changing the shape of the insertion path.
摘要:
A method for implanting one or more implantable medical leads of an electrical stimulation system proximate to an occipital region of a patient comprises utilizing a needle to define an insertion path through tissue of the patient to a target tissue site. The insertion path may be dilated to a size large enough to receive an implantable medical lead. An electrical test signal may be delivered to the patient via the needle, a guide wire or a dilator assembly during the implantation procedure in order to assess the efficacy of stimulation prior to implantation of the lead and/or to establish the location of the needle, guide wire and/or dilator assembly within the patient.
摘要:
A method and apparatus for monitoring the application of a vagus nerve stimulation signal includes a detection circuit having an amplifier, a filter, and a signal prolongation circuit. The signal prolongation circuit rectifies a detected vagus nerve signal and provides the signal to a Schmitt trigger extending the length of the signal. Because of the prolongation of the signal, the signal can be sampled at a relatively low rate, and real time data illustrating the response of various physiological signals to the application of the vagus nerve signal can be monitored, thereby providing clinical data for monitoring and adjusting the applied stimulation.
摘要:
A method is provided for facilitating a diagnosis of a condition of a subject, including applying a current to a site of the subject selected from the list consisting of: a sphenopalatine ganglion (SPG) of the subject, and a neural tract originating in or leading to the SPG, and configuring the current to increase conductance of molecules from brain tissue of the subject through a blood brain barrier (BBB) of the subject into a systemic blood circulation of the subject. The method also includes sensing a quantity of the molecules from a site outside of the brain of the subject, following initiation of application of the current.
摘要:
Apparatus is provided for delivering a Non Steroidal Anti-Inflammatory Drug (NSAID) supplied to a body of a subject for delivery to at least a portion of a central nervous system (CNS) of the subject via a systemic blood circulation of the subject, including a stimulator adapted to stimulate at least one site of the subject, so as to cause an increase in passage of the NSAID from the systemic blood circulation across a blood brain barrier (BBB) of the subject to the portion of the CNS, during at least a portion of the time that the NSAID is present in the blood, the site selected from the list consisting of: a sphenopalatine ganglion (SPG) of the subject, an anterior ethmoidal nerve of the subject, a posterior ethmoidal nerve of the subject, a communicating branch between an anterior ethmoidal nerve and a retro-orbital branch of an SPG of the subject, a communicating branch between a posterior ethmoidal nerve and a retro-orbital branch of an SPG of the subject, a greater palatine nerve of the subject, a lesser palatine nerve of the subject, a sphenopalatine nerve of the subject, a communicating branch between a maxillary nerve and an SPG of the subject, a nasopalatine nerve of the subject, a posterior nasal nerve of the subject, an infraorbital nerve of the subject, an otic ganglion of the subject, an afferent fiber going into the otic ganglion of the subject, an efferent fiber going out of the otic ganglion of the subject, a vidian nerve of the subject, a greater superficial petrosal nerve of the subject, and a lesser deep petrosal nerve of the subject.
摘要:
The present invention is a micro-machined electrode for neural-electronic interfaces which can achieve a ten times lower impedance and higher charge injection limit for a given material and planar area.
摘要:
A method for modifying cranial electrical potentials utilizes an electrical lead having first and second electrodes. The electrical lead may also include either a resistive component for increasing the resistance of the electrical lead, or a diode for restricting the flow of electricity through the lead to a single direction. The electrical lead is attached between skin surface areas of a human head, such as between ears, or an ear and an area of the scalp or forehead. Preferably, two electrical leads are utilized, one lead extending from a left ear to a right portion of the head, and the other electrical lead extending from the right ear to the left portion of the head. Scalp electrical potentials are altered in a passive manner resulting in beneficial effects on a variety of psychiatric disorders and brain functioning.
摘要:
A multiple anode photomultiplying image tube is provided employing an image intensifier structure and an array of anodes for converting visible information into patterned electrical signals. A modulating source associated with the tube assures that the electrical signals exhibit particular characteristics; and such signals are conveyed to an array of electrodes in contact with the skin of a subject, to be perceived by the subject as a conceptual image. The photomultiplying image tube can be mounted in or on spectacles, or on the head of the subject. Arrangements are disclosed for providing black and white information, color information, and stereoscopic information to the subject, and for using the eyes to aim the system at any desired object.