LES Electrical Stimulation Without Real-Time Reflux Sensing
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Solution Overview
Problem
Existing treatments for gastroesophageal reflux disease (GERD) are inadequate, particularly for diurnal GERD, as they often require complex sensing mechanisms, are invasive, or lead to unintended weight gain, and do not effectively manage reflux without impacting swallowing ability or requiring continuous medication.
Innovation Solution
A system using a stimulator, such as a microstimulator or macrostimulator, delivers electrical stimulation to the lower esophageal sphincter (LES) with adjustable parameters, minimizing energy use and avoiding real-time sensing, and is designed for temporary or permanent implantation to normalize LES function and reduce reflux.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex sensing mechanisms are used to detect reflux events in real-time, then treatment effectiveness is improved, but device complexity and energy consumption increase
Solution Approach 1:
The patent extracts and eliminates the complex real-time sensing mechanisms from the system. Instead of using sophisticated sensors to detect reflux events, the invention delivers electrical stimulation based on predetermined schedules or simple patient-activated signals, thereby simplifying the device architecture while maintaining therapeutic effectiveness through normalized LES function.
Solution Approach 2:
The system enables self-service operation where patients can activate stimulation themselves using simple interfaces (e.g., buttons on the external controller), eliminating the need for complex automated sensing mechanisms. The device operates autonomously once activated, delivering pre-programmed stimulation patterns without requiring sophisticated detection systems.
2Reliability
If continuous electrical stimulation is applied to maintain LES pressure, then reflux control is improved, but muscle fatigue and energy consumption increase
Solution Approach 1:
The patent implements periodic electrical stimulation instead of continuous stimulation. The system delivers stimulation in discrete pulses or episodes according to predetermined schedules or triggered by simple patient input, allowing the LES to maintain normalized function through intermittent reinforcement rather than constant activation, thereby reducing energy consumption and preventing muscle fatigue.
3Strength
If invasive surgical procedures are performed to strengthen the LES, then structural support is improved, but patient morbidity and recovery time increase
Solution Approach 1:
The patent replaces invasive mechanical surgical interventions with electrical field stimulation. Instead of performing surgical procedures to physically strengthen or reinforce the LES (such as fundoplication or stapling), the system uses electrical pulses to modulate muscle function and normalize LES pressure, avoiding surgical morbidity while achieving comparable therapeutic outcomes.
4Ease of operation
If pharmacological therapy is used to suppress acid production, then symptom relief is improved, but long-term medication dependence and side effects increase
Solution Approach 1:
The patent substitutes pharmacological acid suppression therapy with electrical stimulation of the LES. By restoring normal LES function through electrical pulses, the system prevents reflux at its source rather than suppressing acid production downstream, thereby eliminating the need for long-term medication use and associated side effects while providing effective symptom relief.
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
The system effectively reduces GERD symptoms by normalizing LES function and pressure without muscle fatigue, reducing reflux events, and avoids weight gain, with minimal energy consumption and reduced need for continuous medication.
Implementation Method 1
A system using a stimulator, such as a microstimulator or macrostimulator, delivers electrical stimulation to the lower esophageal sphincter (LES)
Data Source
AI summary
The present specification discloses devices and methodologies for the treatment of 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, have improved energy storage requirements, enable improved LES function while concurrently delivering additional health benefits, and enable improved LES function post stimulation termination.