Patient handheld device for use with a spinal cord stimulation system

摘要

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.

主权项

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.