Device and implantation system for electrical stimulation of biological systems
First Claim
1. A method of determining a plurality of stimulation parameters for an electrical stimulation device, wherein said electrical stimulation device comprises at least one electrode in electrical communication with a lower esophageal sphincter (LES) of a patient, a waveform generator coupled to the at least one electrode, and a controller configured to control the waveform generator, the method comprising:
- applying a plurality of stimulation sequences, wherein each of said plurality of stimulation sequences is defined by a pulse frequency, pulse duration, and pulse amplitude and wherein each of said plurality of stimulation sequences is applied via said at least one electrode in electrical communication with the LES of the patient;
after each of said plurality of stimulation sequences, evaluating a pressure response of the LES of the patient; and
terminating said application of a plurality of stimulation sequences when the LES of the patient exhibits a pressure response of at least 20 mm Hg sustained for at least 5 minutes.
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Accused Products
Abstract
The present specification discloses devices and methodologies for the treatment of transient lower esophageal sphincter relaxations (tLESRs). Individuals with tLESRs 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
18 Claims
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1. A method of determining a plurality of stimulation parameters for an electrical stimulation device, wherein said electrical stimulation device comprises at least one electrode in electrical communication with a lower esophageal sphincter (LES) of a patient, a waveform generator coupled to the at least one electrode, and a controller configured to control the waveform generator, the method comprising:
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applying a plurality of stimulation sequences, wherein each of said plurality of stimulation sequences is defined by a pulse frequency, pulse duration, and pulse amplitude and wherein each of said plurality of stimulation sequences is applied via said at least one electrode in electrical communication with the LES of the patient; after each of said plurality of stimulation sequences, evaluating a pressure response of the LES of the patient; and terminating said application of a plurality of stimulation sequences when the LES of the patient exhibits a pressure response of at least 20 mm Hg sustained for at least 5 minutes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of determining a plurality of stimulation parameters for an electrical stimulation device, wherein said electrical stimulation device comprises at least one electrode in electrical communication with a lower esophageal sphincter (LES) of a patient, a waveform generator coupled to the at least one electrode, and a controller configured to control the waveform generator, the method comprising:
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applying a first of a plurality of stimulation sequences, wherein the first of a plurality of stimulation sequences is defined by a first pulse frequency, a first pulse duration, and a first pulse amplitude and wherein the first of a plurality of stimulation sequences is applied via said at least one electrode in electrical communication with the LES of the patient; evaluating a pressure response of the patient'"'"'s LES; terminating the first of the plurality of stimulation sequences when the LES of the patient exhibits a pressure response of at least 20 mm Hg sustained for at least 5 minutes; waiting until a pressure of the patient'"'"'s LES decreases to less than 10 mm Hg or to a baseline pressure, whichever is higher; and applying a second of the plurality of stimulation sequences, wherein the second of the plurality of stimulation sequences is defined by a second pulse frequency, a second pulse duration, and a second pulse amplitude and wherein the second of a plurality of stimulation sequences is applied via said at least one electrode in electrical communication with the LES of the patient. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification