Abstract: This invention presents a device, and the method it implements, which is an improvement in the design of nerve stimulators. Like conventional stimulators, it uses a percutaneous, insulated needle for the performance of therapeutic interventions targeting nerves. The improvement comprises offering an option for either constant current or constant voltage, offering a choice of waveform parameters, controlling a pulse generator, supplying a second background waveform, measuring the current and voltage applied to the tissue, computing further electrical characteristics, dynamically adjusting circuit components to ensure a desirable waveform applied to the tissue, and displaying measured and computed electrical characteristics of the tissue. The object is improved positioning of a needle tip near a nerve or nerve plexus for regional anesthesia, pain management, and other medical purposes.

Abstract: This invention presents a device, and the method it implements, which is an improvement in the design of nerve stimulators. Like conventional stimulators, it uses a percutaneous, insulated needle for the performance of therapeutic interventions targeting nerves. The improvement comprises offering an option for either constant current or constant voltage, offering a choice of waveform parameters, controlling a pulse generator, supplying a second background waveform, measuring the current and voltage applied to the tissue, computing further electrical characteristics, dynamically adjusting circuit components to ensure a desirable waveform applied to the tissue, and displaying measured and computed electrical characteristics of the tissue. The object is improved positioning of a needle tip near a nerve or nerve plexus for regional anesthesia, pain management, and other medical purposes.

Abstract: A method and system for discriminating tissues in a subject, particularly for identifying nerve tissue, includes a processor, a waveform generator, a waveform electrode and a return electrode and an electrical property measuring device such as a volt meter. The electrodes are applied to the skin of the subject and an electrical waveform applied to the tissue via the electrodes. A series of electrical property measurements between the electrodes yield digital data that is used to determine coefficients of an approximating mathematical function, which is then used to derived electrical properties of the tissue. Derived electrical properties are then displayed on a display device.

Abstract: This invention presents a device, and the method it implements, which is an improvement in the design of nerve stimulators. Like conventional stimulators, it uses a percutaneous, insulated needle for the performance of therapeutic interventions targeting nerves. The improvement comprises offering an option for either constant current or constant voltage, offering a choice of waveform parameters, controlling a pulse generator, supplying a second background waveform, measuring the current and voltage applied to the tissue, computing further electrical characteristics, dynamically adjusting circuit components to ensure a desirable waveform applied to the tissue, and displaying measured and computed electrical characteristics of the tissue. The object is improved positioning of a needle tip near a nerve or nerve plexus for regional anesthesia, pain management, and other medical purposes.