Device and implantation system for electrical stimulation of biological systems
First Claim
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1. A system for increasing pressure of a patient'"'"'s lower esophageal sphincter (LES), comprising:
- at least one electrode contacting the LES;
a waveform generator coupled to the electrodes; and
a controller configured to electrically stimulate the LES to increase the pressure of the LES, control the waveform generator to stimulate the LES based on a predetermined trigger of at least one of time of day and a supine position of the patient, and maintain an average pressure of the LES above a pressure level which reduces at least one of a frequency of occurrence or an intensity of diurnal GERD symptoms in the patient both during and after stimulation by controlling the waveform generator to repeatedly;
a) generate and apply an electrical pulse train to the LES through the electrodes for a stimulation period, and b) terminate the electrical pulse train for a rest period.
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Abstract
The present specification discloses devices and methodologies for the treatment of diurnal GERD. Individuals with GERD may be treated by implanting a stimulation device within the patient'"'"'s lower esophageal sphincter and applying electrical stimulation to the patient'"'"'s lower esophageal sphincter, in accordance with certain predefined protocols. The presently disclosed devices have a simplified design because they do not require sensing systems capable of sensing when a person is engaged in a wet swallow and have improved energy storage requirements.
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Citations
19 Claims
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1. A system for increasing pressure of a patient'"'"'s lower esophageal sphincter (LES), comprising:
- at least one electrode contacting the LES;
a waveform generator coupled to the electrodes; and
a controller configured to electrically stimulate the LES to increase the pressure of the LES, control the waveform generator to stimulate the LES based on a predetermined trigger of at least one of time of day and a supine position of the patient, and maintain an average pressure of the LES above a pressure level which reduces at least one of a frequency of occurrence or an intensity of diurnal GERD symptoms in the patient both during and after stimulation by controlling the waveform generator to repeatedly;
a) generate and apply an electrical pulse train to the LES through the electrodes for a stimulation period, and b) terminate the electrical pulse train for a rest period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- at least one electrode contacting the LES;
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15. A system for increasing pressure of a patient'"'"'s lower esophageal sphincter (LES), comprising:
- at least one electrode contacting the LES;
a waveform generator coupled to the electrodes; and
a controller configured to control the waveform generator to generate and apply an electrical pulse train to the LES through the electrodes during a stimulation period to produce an increase in the pressure of the LES during a rest period after termination of the electrical pulse train, the pressure of the LES determined to increase during the rest period above a pressure level which reduces at least one of a frequency of occurrence or an intensity of diurnal GERD symptoms in the patient and further comprising at least one of an accelerometer and inclinometer coupled to the controller for sensing posture data of the patient, wherein the controller is configured to control the waveform generator to adjust parameters of the electrical pulse train applied to the LES based on an analysis of the posture data. - View Dependent Claims (16, 17, 18, 19)
- at least one electrode contacting the LES;
Specification