摘要:
A method for determining a change in position of a neurostimulation lead relative to a stimulation target tissue of a patient is provided. The method comprises implanting a first proximity sensor on a surface of the patient, implanting a second proximity sensor on the surface of the patient, measuring a change in a distance between the first and second proximity sensors, and inferring the change in position of the lead relative to the stimulation target tissue from the measured change in distance. The method further comprises inferring an increase in a distance between the lead and the stimulation target tissue when the distance between the first and second proximity sensors increases. The method also comprises conveying electrical stimulation energy to therapeutically stimulate the stimulation target tissue, and modulating a stimulation parameter in response to the measured change in distance.
摘要:
A nerve stimulation lead has a distal end, a proximal end, and a longitudinal length. The nerve stimulation lead includes a plurality of electrodes disposed at the distal end, a plurality of terminals disposed at the proximal end, and a plurality of conductive wires electrically coupling the plurality of electrodes electrically to the plurality of terminals. The nerve stimulation lead also includes at least one anchoring unit disposed on the nerve stimulation lead. The at least one anchoring unit is configured and arranged for anchoring the nerve stimulation lead against a bony structure.
摘要:
A method and neurostimulation system for treating a patient are provided. A plurality of pulsed electrical waveforms are respectively delivered within a plurality of timing channels of the neurostimulation system, thereby treating the patient. Sets of stimulation pulses within the pulsed electrical waveforms that will potentially overlap temporally are predicted. Stimulation pulses in the respective pulsed electrical waveforms are temporally shifted in a manner that prevents overlap of the potentially overlapping pulse sets while preventing frequency locking between the timing channels.
摘要:
A nerve stimulation lead has a distal end, a proximal end, and a longitudinal length. The nerve stimulation lead includes a plurality of electrodes disposed at the distal end, a plurality of terminals disposed at the proximal end, and a plurality of conductive wires electrically coupling the plurality of electrodes electrically to the plurality of terminals. The nerve stimulation lead also includes at least one anchoring unit disposed on the nerve stimulation lead. The at least one anchoring unit is configured and arranged for anchoring the nerve stimulation lead against a bony structure.
摘要:
A method and programmer for programming a neurostimulation device are provided. The method comprises varying a first stimulation parameter under user control, automatically varying a second stimulation parameter, generating a plurality of stimulation parameter sets from the varied first and second stimulation parameters, outputting a pulsed electrical waveform from the neurostimulation device between a plurality of electrodes in accordance with the stimulation parameter sets, such that neural tissue is stimulated without undergoing neurological accommodation that would otherwise occur if the second stimulation parameter were not varied, and programming the neurostimulation device with a new set of stimulation parameters based on a result of the neural tissue stimulation The programmer comprises a user interface capable of receiving an input from a user, a processor configured for performing the previous steps, and output circuitry configured for transmitting the stimulation parameter sets and the new stimulation parameter set to the neurostimulation device.
摘要:
Improved external chargers for charging an implantable medical device, and particularly useful in charging a plurality of such devices, are disclosed. Each of the various embodiments include design elements for mechanically manipulating the position of one or more charging coils within the external charger to customize the magnetic charging field as appropriate for the charger/implantable device environment. For example, a single charging coil may be moved within a housing of the external charger to direct the charging field of the coil towards the currently “coldest” implant, i.e., the implant with the lowest coupling to the external charger. The one or more charging coils may be mechanically manipulated within the external charger housing in a number of ways, including by using linear actuators, by inflatable bladders, or even by hand.
摘要:
A method and neurostimulation system for treating a patient are provided. A plurality of pulsed electrical waveforms are respectively delivered within a plurality of timing channels of the neurostimulation system, thereby treating the patient. Sets of stimulation pulses within the electrical waveforms that will potentially overlap temporally are predicted. Each of the potentially overlapping pulse sets is substituted with a replacement stimulation pulse, such that each replacement stimulation pulse is delivered within at least one of the respective timing channels, thereby preventing temporal overlap between the stimulation pulses of the respective electrical waveforms while preventing frequency locking between the timing channels.
摘要:
Improved external chargers for charging an implantable medical device, and particularly useful in charging a plurality of such devices, are disclosed. Each of the various embodiments include a plurality of field customization coils for customizing the magnetic charging field generated by the external charger such that the magnetic charging field is not radially symmetric. For example, one embodiment includes a primary coil with a plurality of field customization coils distributed radially with respect to the coil. The generated magnetic charging field can be rendered radially asymmetric by selectively activating or disabling the field customization coils in response to data quantifying the coupling between the various implants and the field customization coils in the charger. If there is a relatively high coupling between a particular implant and a particular customization coil for example, that customization coil can be activated to counter the magnetic charging field at that location, while still maintaining a relatively high magnetic charging field at the location of other implants that may have lower couplings.
摘要:
A method and neurostimulation system for treating a patient are provided. A plurality of pulsed electrical waveforms are respectively delivered within a plurality of timing channels of the neurostimulation system, thereby treating the patient. Sets of stimulation pulses within the electrical waveforms that will potentially overlap temporally are predicted. Each of the potentially overlapping pulse sets is substituted with a replacement stimulation pulse, such that each replacement stimulation pulse is delivered within at least one of the respective timing channels, thereby preventing temporal overlap between the stimulation pulses of the respective electrical waveforms while preventing frequency locking between the timing channels.
摘要:
A nerve stimulation lead has a distal end, a proximal end, and a longitudinal length. The nerve stimulation lead includes a plurality of electrodes disposed at the distal end, a plurality of terminals disposed at the proximal end, and a plurality of conductive wires electrically coupling the plurality of electrodes electrically to the plurality of terminals. The nerve stimulation lead also includes at least one anchoring unit disposed on the nerve stimulation lead. The at least one anchoring unit is configured and arranged for anchoring the nerve stimulation lead against a bony structure.