Colon Cleansing Composition With Sulfate Salts and Split Dosing
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Solution Overview
Problem
Existing bowel preparations for colon cleansing, such as those based on polyethylene glycol (PEG) and sulfate, suffer from patient discomfort, poor compliance, electrolyte imbalances, and safety concerns, including renal issues and hyponatremia, while requiring adjunct laxatives like bisacodyl.
Innovation Solution
A composition comprising PEG, sodium sulfate, magnesium sulfate, potassium chloride, and sodium chloride, balanced with flavoring agents and non-fermentable sugars, is administered in split doses to effectively cleanse the colon without the need for adjunct laxatives, improving taste and reducing electrolyte shifts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large-volume PEG-based preparations are used, then bowel cleansing safety is improved, but patient compliance deteriorates due to discomfort from consuming large volumes of salty tasting solution
Solution Approach 1:
The patent changes the osmotic agent from PEG to sulfate-based compounds (magnesium sulfate, sodium sulfate, potassium sulfate), which fundamentally alters the physiological mechanism of action. This parameter change enables effective bowel cleansing with much smaller volumes (250-500 mL) while maintaining safety and improving patient tolerance, directly resolving the contradiction between safety and compliance.
Solution Approach 2:
The patent creates a new formulation that copies the effective cleansing mechanism of PEG but replaces it with sulfate-based osmotic agents. This allows replication of the bowel cleansing function with improved patient comfort and reduced volume requirements, addressing both safety and compliance issues simultaneously.
2Ease of operation
If phosphate-based hypertonic solutions are used, then patient tolerance is improved, but safety deteriorates due to risk of renal failure from renal calcium phosphate deposition
Solution Approach 1:
The patent extracts and removes the phosphate component from the formulation entirely, replacing it with sulfate-based osmotic agents. This extraction eliminates the harmful calcium phosphate deposition mechanism while preserving the beneficial hypertonic cleansing effect, thereby removing the safety risk while maintaining patient tolerance.
Solution Approach 2:
The patent converts the potentially harmful phosphate anion into beneficial sulfate-based osmotic agents. The sulfate compounds provide the necessary osmotic effect for bowel cleansing without the harmful renal deposition side effects, effectively transforming a harmful formulation into a safe and effective one.
3Productivity
If stimulant laxatives like bisacodyl are combined with PEG and sports drinks, then bowel cleansing efficacy is improved, but safety and compliance deteriorate due to bloating, cramps, electrolyte imbalances, and hyponatremia
Solution Approach 1:
The patent extracts and removes the stimulant laxative component (bisacodyl) from the formulation. By using sulfate-based osmotic agents alone, the patent achieves effective bowel cleansing without the need for stimulant laxatives, thereby eliminating the associated safety risks of bloating, cramps, electrolyte imbalances, and hyponatremia while maintaining cleansing efficacy.
Solution Approach 2:
The sulfate-based osmotic agents provide self-sufficient bowel cleansing through their osmotic mechanism, eliminating the need for adjunct stimulant laxatives. The formulation works independently without requiring additional medications, thereby improving the safety profile while maintaining effectiveness.
4Ease of operation
If fermentable sugars are included in the preparation, then taste is improved, but gas production increases due to fermentation
Solution Approach 1:
The patent changes the type of sugar from fermentable to non-fermentable alternatives. This parameter change maintains palatability while preventing gas production through fermentation, directly addressing the contradiction between taste and gas generation.
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 composition achieves thorough colon cleansing with improved patient tolerance, reduced gas production, and avoidance of clinically significant electrolyte imbalances, enhancing safety and compliance for diagnostic and surgical procedures.
Implementation Method 1
The composition is effective to induce purgation of the colon... based on polyethylene glycol (PEG) as the osmotic agent... requiring the ingestion of up to 4 liters (about 1 gallon) of solution
Implementation Method 2
a composition of PEG and sulfate that yields substantial stool output... comprising PEG, sodium sulfate, magnesium sulfate... induces purgation of the colon
Data Source
AI summary
Disclosed herein are methods of administering compositions comprising a mixture of salts that induce purgation of the colon and are useful to cleanse the colon. Furthermore, the disclosed methods prevent degradation of PEG and allow for cleansing of the colon without the use of adjunct laxatives, including stimulant laxatives such as bisacodyl. The disclosed methods are superior to the prior art in that they allow for higher tolerability, improved safety, lower volumes, and improved patient compliance.