Electrical Stimulation for Obesity-Hypoventilation Syndrome Ventilation

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Solution Overview

Problem

Current treatments for obesity-hypoventilation syndrome (OHS) fail to effectively address the respiratory limitations caused by excess body mass, leading to inadequate oxygenation and carbon dioxide removal, and there is a need for new treatment protocols due to the increasing prevalence of obesity.

Innovation Solution

Applying electrical stimulation to the diaphragm and chest wall muscles to modulate chest cavity capacity, using implanted electrodes and generators to enhance muscle contraction and relaxation, thereby improving lung expansion and ventilation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mechanical ventilation is used to treat OHS, then oxygenation and carbon dioxide removal are improved, but device complexity and patient comfort deteriorate

Engineering Contradiction:
Improveoxygenation and carbon dioxide removalVSAvoidventilation device complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical ventilation systems with electrical stimulation of respiratory muscles. Instead of using mechanical devices to force air in and out of the lungs, the invention uses electrical signals to stimulate the diaphragm and intercostal muscles to perform breathing actions naturally, thereby improving oxygenation while reducing device complexity and patient discomfort

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent enables the patient's own respiratory muscles to perform the ventilation function through electrical stimulation. The diaphragm and intercostal muscles, when stimulated, actively participate in lung expansion and air exchange, allowing the body's own physiological systems to serve the treatment purpose rather than relying entirely on external mechanical support

Inventive Principle:
Principle #25Self-service

2Reliability

If mechanical ventilation through tracheostomy is used, then ventilation effectiveness is improved, but ease of operation and patient quality of life deteriorate

Engineering Contradiction:
Improveventilation effectivenessVSAvoidpatient quality of life
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces invasive mechanical ventilation through tracheostomy with non-invasive electrical muscle stimulation. By stimulating the diaphragm and chest wall muscles electrically, the system achieves effective ventilation without requiring tracheal intubation or mechanical breathing apparatus, thereby maintaining ventilation effectiveness while dramatically improving patient quality of life and ease of operation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces electrical stimulation as an intermediary between the nervous system and respiratory muscles. Instead of directly mechanically forcing ventilation through the airway, the invention uses electrical signals as a mediator to activate the muscles responsible for breathing, achieving effective ventilation through a less invasive pathway that preserves patient comfort and quality of life

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If weight loss therapy is used to treat OHS, then long-term reversal of OHS is improved, but treatment time and productivity deteriorate

Engineering Contradiction:
Improvelong-term OHS reversalVSAvoidtreatment duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies electrical stimulation to immediately improve respiratory function and chest cavity expansion in obese patients, providing preliminary relief of OHS symptoms before weight loss is achieved. This preliminary action addresses the urgent respiratory needs while the longer-term weight loss process continues, reducing treatment time and improving quality of life during the weight loss journey

Inventive Principle:
Principle #10Preliminary action

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 significantly improves oxygenation and carbon dioxide removal, reducing symptoms of OHS and potentially addressing related conditions like diabetes, hypertension, and hyperlipidemia, by enhancing chest cavity expansion and ventilation efficiency.

Implementation Method 1

applying an electrical stimulus to a subject to modulate chest cavity capacity

Methodology Applied
Scientific EffectElectrical stimulation: Electrical Impedance Tomography

Data Source

PatentUS7966072B2Methods and compositions for treating obesity-hypoventilation syndrome
Publication Date: 2011.06.21 PALO ALTO INVESTORS LP
  • US7966072B2 patent drawing

AI summary

Methods and compositions for treating a subject for obesity-hypoventilation syndrome, or related conditions, are provided. The subject methods include applying an electrical stimulus to a subject in a manner that modulates chest cavity capacity in a manner effective to treat the subject. Also provided are compositions, kits and systems for use in practicing the subject methods.