Functional electrical stimulation systems
First Claim
1. A gait modulation system, comprising:
- a sensor module configured to produce at least one of a gait signal and a validation signal, the gait signal including information related to a gait event of a patient; and
a stimulation system configured to be in electronic communication with the sensor module, the stimulation system configured to determine that electronic communication with the sensor module is functional when the validation signal is received from the sensor module;
the stimulation system configured to produce a first stimulation signal in response to the gait signal, the stimulation system configured to produce a second stimulation signal when neither the gait signal nor the validation signal is received within a predetermined time period.
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Accused Products
Abstract
A gait modulation system including: (a) a sensor device including a sensor adapted for associating with at least one lower limb of the patient, the sensor for transducing at least one parameter related to a gait of the patient, so as to obtain gait data related to the gait, and (b) a muscle stimulator including: (i) an electrical stimulation circuit, the circuit adapted to supply an electrical stimulation output to an electrode array for performing functional electrical stimulation of at least one muscle of the lower limb, and (ii) a microprocessor, operatively connected to the at least one sensor, the microprocessor adapted for: receiving a stream of gait information based on the gait data; processing the gait information, and controlling the stimulation output based on the processing of the gait information, and wherein the microprocessor is further adapted to identify a failure in the stream of gait information, and to consequently control the electrical stimulation circuit to deliver a fail-safe stimulation output over a portion of a duration of the failure.
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Citations
19 Claims
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1. A gait modulation system, comprising:
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a sensor module configured to produce at least one of a gait signal and a validation signal, the gait signal including information related to a gait event of a patient; and a stimulation system configured to be in electronic communication with the sensor module, the stimulation system configured to determine that electronic communication with the sensor module is functional when the validation signal is received from the sensor module;
the stimulation system configured to produce a first stimulation signal in response to the gait signal, the stimulation system configured to produce a second stimulation signal when neither the gait signal nor the validation signal is received within a predetermined time period. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A gait modulation system, comprising:
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a stimulator configured to receive a first signal produced by a sensor via a communication pathway, the first signal produced by the sensor including information related to a gait event, the stimulator configured to produce a first stimulation signal in response to a signal received from the sensor via the communication pathway, the stimulator configured to detect a failure of the communication pathway, the failure of the communication pathway including a failure to receive within a predetermined time a second signal including information related to the gait event, the stimulator configured to produce a second stimulation signal when the failure is detected. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A gait modulation system, comprising:
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a stimulator including a receiver, the stimulator configured to receive via a communication pathway a wireless signal produced by a sensor unit, the wireless signal related to a gait event, the stimulator configured to produce a first stimulation signal in response to receipt of the wireless signal from the sensor unit via the communication pathway, the stimulator configured to detect a failure of the communication pathway, the failure of the communication pathway including at least one of a failure of the receiver to receive the wireless signal and a failure of the sensor unit to transmit the wireless signal, the stimulator configured to produce a second stimulation signal when the failure is detected. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification