Electrical Stimulation for Lower Esophageal Sphincter Pressure Modulation
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Solution Overview
Problem
Current treatments for gastroesophageal reflux disease (GERD) and related conditions, such as Nissen's Fundoplication and endoscopic procedures, are invasive or lack long-term data on safety and success, and most drug therapies do not effectively modulate lower esophageal sphincter (LES) pressure, which is a key underlying cause of GERD.
Innovation Solution
The use of electrical stimulation, specifically low frequency electrical pulses to increase LES pressure and high frequency pulses to decrease LES pressure, delivered through a stimulation device with electrodes positioned on or near the LES, to modulate sphincter pressure and treat conditions related to abnormal LES function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If surgical procedures like Nissen's Fundoplication are used to treat GERD, then treatment effectiveness is improved, but invasiveness and surgical risks increase
Solution Approach 1:
The patent replaces mechanical surgical intervention (Nissen's Fundoplication) with electrical stimulation therapy. The electrical stimulation device delivers controlled electrical pulses to the LES to modulate sphincter pressure, achieving therapeutic effects without surgical invasion. This substitution eliminates surgical risks while maintaining treatment effectiveness for GERD.
Solution Approach 2:
The patent introduces electrical stimulation as an intermediary mechanism between the treatment goal and the LES. Rather than directly mechanically reinforcing the LES through surgery, electrical stimulation acts as a mediator that modulates LES pressure through physiological pathways, providing a non-invasive route to achieve the same therapeutic objective.
2Ease of operation
If endoscopic procedures are used to treat GERD, then treatment accessibility is improved, but long-term safety and success data are insufficient
Solution Approach 1:
The patent replaces endoscopic mechanical procedures with electrical stimulation therapy. This substitution provides a non-invasive treatment modality that avoids the limitations of endoscopic procedures, offering improved long-term safety prospects while maintaining ease of operation through programmable stimulation parameters and adjustable treatment protocols.
3Ease of operation
If drug therapies are used to treat GERD, then symptom relief is achieved, but LES pressure modulation is insufficient
Solution Approach 1:
The patent replaces pharmacological treatment with electrical stimulation therapy. While drugs provide symptomatic relief through chemical mechanisms, electrical stimulation directly modulates LES pressure through physiological electrical pathways, achieving both symptom relief and effective LES pressure modulation without the side effects associated with long-term drug therapy.
Solution Approach 2:
The patent enables dynamic adjustment of stimulation parameters (frequency, amplitude, pulse duration) to optimize LES pressure modulation. This parameter control allows precise titration of therapeutic effect, providing both symptom relief and effective LES pressure modulation that cannot be achieved with fixed-dose drug therapies.
4Reliability
If high frequency electrical stimulation is applied to increase LES pressure, then GERD treatment is improved, but achalasia treatment capability is reduced
Solution Approach 1:
The patent employs dynamic, adjustable stimulation parameters that can be modified based on the specific condition being treated. For GERD, high frequency stimulation increases LES pressure, while for achalasia, the parameters are adjusted to decrease LES pressure. This dynamic adaptability allows a single device to effectively treat multiple opposing conditions.
Solution Approach 2:
The patent utilizes parameter changes to treat different conditions with the same device. By adjusting frequency, amplitude, and pulse duration parameters, the system can achieve opposite effects on LES pressure - increasing it for GERD treatment and decreasing it for achalasia treatment - thereby maintaining versatility across different esophageal disorders.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively increases LES pressure to reduce reflux and treat conditions like GERD, while decreasing LES pressure to treat achalasia and other esophageal disorders, providing a non-invasive alternative with sustained effects beyond the stimulation period.
Implementation Method 1
Electrical stimulation of the stomach has been shown to modulate lower esophageal sphincter pressure. Electrical stimulation using neural gastrointestinal electrical stimulation ('NGES') at high frequency can induce contractions of the smooth muscle of the gut.
Data Source
AI summary
The present specification describes methods and devices using electrical stimulation to modulate lower esophageal sphincter (LES) pressure. The electrical stimulation may be delivered to the LES via one or more electrodes that is placed in contact with the LES tissue. The methods and devices are useful to treat a number of conditions or disease conditions, including for example, gastroesophageal reflux disease (GERD).