ELECTRICAL STIMULATION FOR A FUNCTIONAL ELECTRICAL STIMULATION SYSTEM
First Claim
1. An electrical stimulation system for generating a stimulation signal for at least two electrodes for stimulating a body part in a functional electrical stimulation system, the electrical stimulation system comprising:
- a controller unit operable for receiving at least one set of stimulation parameters, receiving a trigger signal; and
in response to receiving the trigger signal, outputting at least a first control signal and a second control signal based on the at least one set of stimulation parameters;
a voltage conversion module coupled to the controller unit, the voltage conversion module for receiving at least the first control signal and converting a supply voltage based on the received first control signal; and
at least one switch receiving the converted supply voltage at a first terminal and selectively outputting based on the second control signal a stimulation signal at a stimulation output terminal
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Accused Products
Abstract
An electrical stimulation system and method for generating a stimulation signal for at least two electrodes coupled to a body part in a functional electrical stimulation system. One example embodiment includes a controller unit operable for receiving stimulation parameters and a trigger signal, and in response to receiving the trigger signal, outputting control signals based on the stimulation parameters. A voltage conversion module coupled to the unit receives the control signals and converts a supply voltage based on the received control signals. A switch receives the converted supply voltage at a first terminal and outputs a simulation signal at a second terminal. Outputting of the converted supply voltage at the second terminal by the switch is controlled by a driver module based on the received control signals.
23 Citations
32 Claims
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1. An electrical stimulation system for generating a stimulation signal for at least two electrodes for stimulating a body part in a functional electrical stimulation system, the electrical stimulation system comprising:
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a controller unit operable for receiving at least one set of stimulation parameters, receiving a trigger signal; and
in response to receiving the trigger signal, outputting at least a first control signal and a second control signal based on the at least one set of stimulation parameters;a voltage conversion module coupled to the controller unit, the voltage conversion module for receiving at least the first control signal and converting a supply voltage based on the received first control signal; and at least one switch receiving the converted supply voltage at a first terminal and selectively outputting based on the second control signal a stimulation signal at a stimulation output terminal - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for generating a stimulation signal for a functional electrical stimulation system, the method comprising:
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receiving a selection of a set of stimulation parameters defining characteristics of the stimulation signal to be generated; determining values of a first control signal and a second control signal based on the set of stimulation parameters; outputting the first control signal to control an amplitude of the stimulation signal; determining a state of a finite state machine; and outputting a second control signal based on the state of the state machine, the second control signal being adapted for controlling timing for the stimulation signal. - View Dependent Claims (24, 25, 26, 27, 28)
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29. An electrical stimulation system for generating a stimulation signal for at least two electrodes coupled to a body part in a functional electrical stimulation system, the electrical stimulation system comprising:
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a controller unit operable for receiving at least one set of stimulation parameters, receiving a trigger signal; and
in response to receiving the trigger signal, outputting at least a first control signal and a second control signal based on the at least one set of stimulation parameters;a voltage conversion module coupled to the controller unit, the voltage conversion module configured to receive at least the first control signal and converting a supply voltage based on the received first control signal to a positive converted voltage and a negative converted voltage; a first switch configured to receive the positive converted voltage and selectively outputting based on the second control signal the positive converted voltage at a stimulation output terminal; and a second switch configured to receive the negative converted voltage and selectively outputting based on the second control signal the negative converted voltage at the stimulation output terminal. - View Dependent Claims (30, 31)
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32. A computer readable medium comprising a plurality of instructions executable on a processor of a device for adapting the processor to implement a method of generating a stimulation signal for a functional electrical stimulation system, the computer readable medium comprising instructions for:
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receiving a selection of a set of stimulation parameters defining characteristics of the stimulation signal to be generated; determining values of a first control signal and a second control signal based on the set of stimulation parameters; outputting the first control signal to control an amplitude of the stimulation signal; determining a state of a finite state machine; and outputting a second control signal based on the state of the state machine, the second control signal being adapted for controlling timing for the stimulation signal.
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Specification