ELECTRICAL STIMULATION THERAPY USING DECAYING CURRENT PULSES
First Claim
1. A method for delivery of electrical stimulation, the method comprising:
- generating, with a current regulator, an electrical stimulation pulse having a pulse current level, a pulse voltage level, and a pulse width;
controlling the pulse current level to decrease during the pulse width such that a sum of the pulse voltage level and a headroom voltage level of the current regulator does not exceed a supply voltage level; and
delivering the pulse via one or more implantable electrodes.
1 Assignment
0 Petitions
Accused Products
Abstract
This disclosure describes generation of electrical stimulation pulses for electrical stimulation therapy. The stimulation pulses have a pulse current level and pulse width, and may be generated by a current regulator. The pulse voltage level may be a voltage level delivered by the current regulator while maintaining regulation of the pulse current level. During delivery of a pulse, a supply voltage level may decrease due to discharging of a supply capacitance, and the pulse voltage level may increase due to charging of a load capacitance. The pulse current level may be controlled to decrease during the pulse width such that a sum of the pulse voltage level and a headroom voltage of the current regulator does not exceed the supply voltage level. In some examples, the pulse may include sub-pulses with different sub-pulse current levels, where an earlier sub-pulse has a higher pulse current level than a later sub-pulse.
-
Citations
30 Claims
-
1. A method for delivery of electrical stimulation, the method comprising:
-
generating, with a current regulator, an electrical stimulation pulse having a pulse current level, a pulse voltage level, and a pulse width; controlling the pulse current level to decrease during the pulse width such that a sum of the pulse voltage level and a headroom voltage level of the current regulator does not exceed a supply voltage level; and delivering the pulse via one or more implantable electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A medical device for delivery of electrical stimulation, the device comprising:
-
a stimulation pulse generator comprising a current regulator configured to generate an electrical stimulation pulse having a pulse current level, a pulse voltage level, and a pulse width; a controller configured to control the pulse current level to decrease during the pulse width such that a sum of the pulse voltage level and a headroom voltage level of the current regulator does not exceed a supply voltage level; and one or more implantable electrodes configured to deliver the pulse. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A medical device for delivery of electrical stimulation, the device comprising:
-
means for generating an electrical stimulation pulse having a pulse current level, a pulse voltage level, and a pulse width means for controlling the pulse current level to decrease during the pulse width such that a sum of the pulse voltage level and a headroom voltage level of the generating means does not exceed a supply voltage level; and means for delivering the pulse via one or more implantable electrodes. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
-
Specification