摘要:
Disclosed are systems and methods which provide voltage conversion in increments less than integer multiples of a power supply (e.g., battery) voltage (VB). A representative embodiment provides power supply voltage multipliers (100) in a binary ladder distribution to provide a desired number of output voltage steps using a relatively uncomplicated circuit design. By using different sources in various combinations and/or by "stacking" different sources in various ways, the voltage multiplier circuit (100) may be used to provide desired voltages (V TARG ). In order to minimize the number of components used in a voltage converter (100) of an embodiment, a capacitive voltage converter circuit (110) uses one or more storage capacitors (CS1,CS2,CS3) in place of pump capacitors (CP1,CP2,CP3) in a voltage generation cycle. Also, certain embodiments do not operate to generate an output voltage (V TARG ) until the time that voltage is needed.
摘要:
The present invention relates to a percutaneous insertion-capable lead (100e), wherein insertion made through a percutaneous insertion structure. For one embodiment of such lead, the electrode-supporting stimulation portion (16) of the lead includes at least one flexible region (50), relative to a transverse dimension of the lead, to facilitate lead steerability.
摘要:
Disclosed are systems and methods which provide voltage conversion in increments less than integer multiples of a power supply (e.g., battery) voltage. A representative embodiment provides power supply voltage multipliers in a binary ladder distribution to provide a desired number of output voltage steps using a relatively uncomplicated circuit design. By using different sources in various combinations and/or by "stacking" different sources in various ways, the voltage multiplier circuit may be used to provide desired voltages. In order to minimize the number of components used in a voltage converter of an embodiment, a capacitive voltage converter circuit uses one or more storage capacitors in place of pump capacitors in a voltage generation cycle. Also, certain embodiments do not operate to generate an output voltage until the time that voltage is needed.
摘要:
A wire wrapping device that includes a turntable assembly that is made up of a turntable and a driver adapted to rotate the turntable. Also, a set of payout carriers are mounted on the turntable, each payout carrier adapted to let out wire to be wrapped. A driver is adapted to turn each payout carrier relative to the turn table, the driver being user adjustable to turn each payout carrier by a selectable amount, per each complete rotation of the turntable.
摘要:
The stimulation system for treating a neurological disorder comprising: an implantable pulse generator that is programmable to generate a burst stimulus that comprises a plurality of groups of spike pulses, wherein the burst stimulus is substantially quiescent between the plurality of groups, wherein each spike within each group is separated by a minimum inter-group interval, wherein the maximum inter-spike interval is 5 milliseconds and the minimum inter-group interval is 20 milliseconds; and a medical lead for delivering the burst stimulus form the implantable pulse generator to a patient via one or several electrodes.
摘要:
A device and method for generating electrical stimulation. The implantable device includes a programmable switching device or array that receives at least one pulse generator output coupled through at least one coupling capacitor. The switching device selectively connects at least one pulse generator output to a plurality of electrode terminals via at least one coupling capacitor, wherein the number of electrode terminals is greater than the number of pulse generator outputs. Electrical stimulation signals may be applied directly from the electrode terminals, or are applied through a lead or lead extension having corresponding electrodes electrically connected to the electrode terminals.
摘要:
An electrical stimulation system (10) is provided for electrically stimulating target nerve tissue in a person's brain using a stimulation lead (14) having a tip electrode (18a), having at least five electrodes (18), or both. The system (10) includes a stimulation lead (14) adapted for implantation into the brain for electrical stimulation of target nerve tissue in the brain. The stimulation lead (14) may include a tip electrode (18a) located at a distal tip (19) of the stimulation lead (14) and adapted to be positioned proximate the target nerve tissue in the brain and to deliver electrical stimulation pulses to the target nerve tissue in the brain. The stimulation lead (14) may include at least five electrodes (18), one or more of which are adapted to be positioned proximate the target nerve tissue in the brain and to deliver electrical stimulation pulses to the target nerve tissue in the brain. The system (10) also includes a stimulation source (12) operable to generate the electrical stimulation pulses for transmission to the one or more electrodes (18), possibly including a tip electrode (18a), of the stimulation lead (14) to cause the one or more electrodes (18) to deliver the electrical stimulation pulses to the target nerve tissue in the brain. To be accompanied, when published, with Figure 1a of the drawings.