Implantable pulse generator having current steering means
First Claim
1. A programmer for an implantable pulse generator coupled to an array of electrodes, comprising:
- a user-controlled input device configured for allowing entry of information defining positions of the electrodes relative to an anatomical structure and generating steering control signals;
a processor configured for outputting graphical signals for displaying the electrode positions relative to the anatomical structure based on the entered relative electrode position information, and for shifting stimulus values between the electrodes in response to the control signals;
control circuitry configured for generating programming signals containing the stimulus values; and
a transmitter configured for transmitting the programming signals to the implantable pulse generator.
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Abstract
An implantable pulse generator includes a current steering capability that allows a clinician or patient to quickly determine a desired electrode stimulation pattern, including which electrodes of a group of electrodes within an electrode array should receive a stimulation current, including the amplitude, width and pulse repetition rate of such current. Movement of the selected group of electrodes is facilitated through the use of remotely generated directional signals, generated by a pointing device, such as a joystick. As movement of the selected group of electrodes occurs, current redistribution amongst the various electrode contacts takes place. The redistribution of stimulus amplitudes utilizes re-normalization of amplitudes so that the perceptual level remains fairly constant. This prevents the resulting paresthesia from falling below the perceptual threshold or above the comfort threshold.
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Citations
24 Claims
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1. A programmer for an implantable pulse generator coupled to an array of electrodes, comprising:
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a user-controlled input device configured for allowing entry of information defining positions of the electrodes relative to an anatomical structure and generating steering control signals; a processor configured for outputting graphical signals for displaying the electrode positions relative to the anatomical structure based on the entered relative electrode position information, and for shifting stimulus values between the electrodes in response to the control signals; control circuitry configured for generating programming signals containing the stimulus values; and a transmitter configured for transmitting the programming signals to the implantable pulse generator. - 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)
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Specification