Systems and methods for immobilization using charge delivery
First Claim
1. A method performed by a system that produces a stimulus signal that, when conducted on a path through tissue of a target, interferes with locomotion by the target, the method comprising:
- providing the stimulus signal comprising a series of pulses wherein a particular pulse of the series has an initial voltage magnitude and a terminal voltage magnitude, a start time, an end time, and a duration between the start time and the end time;
during providing, determining at least one of the terminal voltage, the end time, and the duration in accordance with a resistance of the path; and
discontinuing provision of the particular pulse so that a predetermined quantity of charge is delivered to the target by the particular pulse during the duration of the particular pulse, the quantity of charge for interfering with use by the target of skeletal muscles of the target, whereby the terminal voltage, the end time, and the duration result from discontinuing.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for immobilizing a target such as a human or animal with a stimulus signal coupled to the target via numerous electrodes select particular electrodes to use for the stimulus signal. Subsets of electrodes may be tested by applying a test signal and monitoring the energy or charge delivered during a prescribed time. If the delivered energy or charge using a particular subset of electrodes as indicated by monitoring test pulse amplitude suitably compares to a limit, then the particular subset is selected for applying the stimulus signal. A first stimulus signal may be applied to a first subset of electrodes to prompt movement of the target toward an electrode that, when better coupled to the target as a consequence of movement of the target will provide a more effective subset of electrodes for further stimulus. For example, a projectile with closely spaced electrodes may stimulate a burning sensation to attract the target to impale the target'"'"'s hand on a rear facing electrode of the projectile. Use of the rear facing electrode and one or more of the closely spaced electrodes may provide a more effective stimulus circuit through tissue of the target.
103 Citations
93 Claims
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1. A method performed by a system that produces a stimulus signal that, when conducted on a path through tissue of a target, interferes with locomotion by the target, the method comprising:
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providing the stimulus signal comprising a series of pulses wherein a particular pulse of the series has an initial voltage magnitude and a terminal voltage magnitude, a start time, an end time, and a duration between the start time and the end time; during providing, determining at least one of the terminal voltage, the end time, and the duration in accordance with a resistance of the path; and discontinuing provision of the particular pulse so that a predetermined quantity of charge is delivered to the target by the particular pulse during the duration of the particular pulse, the quantity of charge for interfering with use by the target of skeletal muscles of the target, whereby the terminal voltage, the end time, and the duration result from discontinuing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method performed by a system that produces a stimulus signal that, when conducted through tissue of a target, interferes with locomotion by the target, the method comprising:
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providing a series of pulses wherein a particular pulse of the series has an initial voltage magnitude and a terminal voltage magnitude; the particular pulse has a start time, an end time, and a duration between the start time and the end time; and providing each pulse of the series of pulses comprises partially discharging a capacitance; testing whether ionization is desired; when ionization is not desired, providing at the target the initial voltage magnitude of the particular pulse at about 400 volts; when ionization is desired, providing at the target and after ionization the particular pulse having a voltage magnitude of about 5000 volts; during the duration of the particular pulse, integrating the current delivered through the target; during the duration of the particular pulse, limiting delivery of charge to the target to about 100 microcoulombs in accordance with a result of integrating the current; and providing the stimulus signal in response to the series of pulses for interfering with use by the target of skeletal muscles of the target. - View Dependent Claims (30, 31)
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32. A method performed by a system that produces a stimulus signal that, when conducted through tissue of a target, interferes with locomotion by the target, the method comprising:
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providing a series of pulses wherein a particular pulse of the series has an initial voltage magnitude and a terminal voltage magnitude; the particular pulse has a start time, an end time, and a duration between the start time and the end time; and providing each pulse of the series of pulses comprises partially discharging a capacitance; determining that a predetermined voltage of the capacitance was attained; testing whether ionization is desired; when ionization is not desired, providing the initial voltage magnitude of the particular pulse at about 400 volts; when ionization is desired, providing after ionization the particular pulse having a voltage magnitude of about 5000 volts; in response to determining that the predetermined voltage was attained, discontinuing provision of the particular pulse so that a predetermined quantity of charge, of about 100 microcoulombs, is delivered to the target by the particular pulse during the duration of the particular pulse, the quantity of charge for interfering with use by the target of skeletal muscles of the target; and providing the stimulus signal in response to the series of pulses. - View Dependent Claims (33, 34)
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35. A method performed by a system that produces a stimulus signal that, when conducted through tissue of a target, interferes with locomotion by the target, the method comprising:
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providing, in a plurality of first stages and a plurality of second stages intermixed with the first stages, a series of pulses that includes a particular first pulse of a first stage of the plurality and includes a particular second pulse of a second stage of the plurality; providing the stimulus signal in response to the series of pulses;
whereina first charge is delivered through the target determined by terminating the particular first pulse, the first charge for interfering with use by the target of skeletal muscles of the target; a second charge delivered through the target determined by terminating the particular second pulse; and the second charge is less than the first charge. - View Dependent Claims (36, 37, 38)
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39. A method performed by a system that produces a stimulus signal that, when conducted through tissue of a target, interferes with locomotion by the target, the method comprising:
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providing, in a plurality of first stages and a plurality of second stages intermixed with the first stages, a series of pulses that includes a particular pulse, wherein a particular first stage has a first pulse repetition rate and a particular second stage has a second pulse repetition rate; terminating the particular pulse in response to a present voltage magnitude of the particular pulse; and providing, in response to the series of pulses, the stimulus signal for interfering with use by the target of skeletal muscles of the target;
whereinthe second pulse repetition rate is less than the first pulse repetition rate. - View Dependent Claims (40, 41, 42)
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43. A method performed by a system that produces a stimulus signal that, when conducted through tissue of a target, interferes with locomotion by the target, the method comprising:
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providing, in a plurality of first stages and a plurality of second stages intermixed with the first stages, a series of pulses that includes a particular first pulse of a first stage of the plurality and includes a particular second pulse of a second stage of the plurality; and providing the stimulus signal in response to the series of pulses;
whereina first charge is delivered through the target in response to the first pulse, the first charge being in the range from about 30 microcoulombs to about 100 microcoulombs for interfering with use by the target of skeletal muscles of the target; a second charge is delivered through the target in response to the second pulse, the second charge being less than the first charge; a particular first stage has a first pulse repetition rate and a particular second stage has a second repetition rate; the first repetition rate is about 20 pulses per second; and the second repetition rate is in the range from about 5 pulses per second to about 15 pulses per second. - View Dependent Claims (44, 45)
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46. A method performed by a waveform controller that produces a stimulus signal that, when conducted through tissue of a target, interferes with locomotion by the target, the method comprising:
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providing a series of pulses wherein a particular pulse of the series has an initial voltage magnitude, a terminal voltage magnitude, a start time, an end time, and a duration between the start time and the end time; obtaining a first value of an initial quantity of charge stored; obtaining a second value of a present quantity of charge stored; responsive to the first value and the second value, discontinuing provision of the particular pulse so that a predetermined quantity of charge is delivered to the target by the particular pulse during the duration of the particular pulse, the quantity of charge for interfering with use by the target of skeletal muscles of the target; and providing the stimulus signal in response to the series of pulses. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
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47. A method performed by a waveform controller that produces a stimulus signal that, when conducted through tissue of a target, interferes with locomotion by the target, the method comprising:
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providing a series of pulses wherein a particular pulse of the series has an initial voltage magnitude, a terminal voltage magnitude, a start time, an end time, and a duration between the start time and the end time; detecting a difference between the initial voltage magnitude and a present voltage magnitude; responsive to detecting, operating a switch to discontinue provision of the particular pulse so that a predetermined quantity of charge is delivered to the target by the particular pulse during the duration of the particular pulse, the predetermined quantity of charge for interfering with use by the target of skeletal muscles of the target; and providing the stimulus signal in response to the series of pulses. - View Dependent Claims (71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93)
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Specification