Patient handheld device for use with a spinal cord stimulation system
First Claim
1. A method of calibrating a patient feedback device for use in an electrical stimulation system, comprising:
- applying an electrical stimulus to a patient;
measuring, via a force sensor on a patient feedback device, a squeezing of the patient feedback device by the patient in response to the applied electrical stimulus; and
calculating a patient response time based on a time lag between when the electrical stimulus is applied to the patient and when the patient feedback device was squeezed by the patient in response to the applied electrical stimulus.
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Accused Products
Abstract
A patient feedback device for use in an electrical stimulation system is calibrated. The electrical stimulation system includes an implantable pulse generator (IPG) implanted in a patient and a patient feedback device having a force sensor. Input from the patient is sensed using the patient feedback device. At a first time, an electrical stimulus is applied with the IPG. The force sensor is monitored at a plurality of time points. A level of force sensed by the force sensor at each of the plurality of time points is recorded. A time point at which a maximum force is applied is identified, or a time point at which a minimum force is applied is identified. The first time is compared to the time point at which a minimum force is applied or the time point at which a maximum force is applied, in order to determine a patient response time.
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Citations
20 Claims
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1. A method of calibrating a patient feedback device for use in an electrical stimulation system, comprising:
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applying an electrical stimulus to a patient; measuring, via a force sensor on a patient feedback device, a squeezing of the patient feedback device by the patient in response to the applied electrical stimulus; and calculating a patient response time based on a time lag between when the electrical stimulus is applied to the patient and when the patient feedback device was squeezed by the patient in response to the applied electrical stimulus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of calibrating a patient feedback device for use in an electrical stimulation system, comprising:
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delivering a first electrical stimulus to a patient via an implantable pulse generator; detecting a first patient engagement with a patient feedback device in response to the first electrical stimulus; calculating a patient response time based on a time lag between a first point in time when the first electrical stimulus is delivered and a second point in time when the first patient engagement is detected; thereafter delivering a plurality of second electrical stimuli to the patient via the implantable pulse generator; detecting a plurality of second patient engagements with the patient feedback device in response to the delivering of the plurality of the second electric stimuli; and associating, based on the calculated patient response time, each of the second patient engagements with each of the second electrical stimuli, respectively. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method of calibrating a patient feedback device for use in an electrical stimulation system, the system including an implantable pulse generator (IPG) implanted in a patient and a patient feedback device having a force sensor, the method comprising:
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sensing input from the patient using the patient feedback device; at a first time, applying an electrical stimulus with the IPG; monitoring the force sensor at a plurality of time points that include a second time point and a third time point; recording a level of force sensed by the force sensor at each of the plurality of time points; identifying at least one of;
the second time point at which a maximum force is applied and the third time point at which a minimum force is applied; andcomparing the first time to at least one of;
the second time point and the third time point to determine a patient response time. - View Dependent Claims (18, 19, 20)
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Specification