Liquid Wound Dressing Composition for Exudation Management
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Solution Overview
Problem
Current pharmaceutical preparations for skin wounds, such as suspensions, ointments, and film-forming sprays, face challenges like dressing adhesion, exudation management, and infection risks, which hinder effective wound healing and increase the workload for medical staff.
Innovation Solution
A liquid topical pharmaceutical composition comprising glycerol, 1,2-propanediol, water-soluble Laurocapram or decyl methyl sulfoxide, and water in specific ratios, combined with selected Chinese medicinal herbs, that rapidly seals wounds, absorbs exudation, and promotes healing while preventing infection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If suspension is used for wound treatment, then wound coverage is achieved, but dressing sticks to wound surface causing tissue tearing and bleeding
Solution Approach 1:
The patent changes the physical state of the pharmaceutical preparation from suspension to liquid form with specific viscosity parameters. The liquid composition penetrates wound exudation without adhering to the wound surface, eliminating tissue tearing while maintaining effective wound coverage through controlled fluid dynamics and osmotic pressure.
Solution Approach 2:
The patent employs a disposable liquid dressing application system where the liquid pharmaceutical composition is applied and then allowed to form a non-adherent protective layer. This eliminates the need for repeated mechanical dressing changes that cause tissue damage, reducing both patient suffering and medical workload.
2Reliability
If ointment is used for wound treatment, then wound protection is provided, but ointment is incompatible with wound exudation causing adhesion and difficult dressing replacement
Solution Approach 1:
The patent transforms the pharmaceutical preparation from ointment (semi-solid) to liquid form with optimized viscosity and osmotic parameters. This liquid composition is compatible with wound exudation, allowing it to mix without causing adhesion between dressing and wound, thereby facilitating easy dressing replacement while maintaining continuous wound protection.
Solution Approach 2:
The liquid pharmaceutical composition acts as an intermediary between the wound and the dressing material. It creates a compatible interface that prevents direct adhesion between the dressing and wound tissue, allowing dressings to be easily removed without causing trauma while still providing effective protection.
3Reliability
If film forming spray is used for wound treatment, then wound sealing is improved, but adsorption of wound exudation is insufficient producing submembrane empyema
Solution Approach 1:
The patent modifies the film-forming properties by adjusting the liquid composition's evaporation rate, flexibility, and permeability parameters. The resulting film maintains effective wound sealing while incorporating exudation-absorbing components that prevent fluid accumulation underneath, eliminating the risk of submembrane empyema while preserving the protective barrier function.
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 effectively seals wounds, reduces exudation, prevents infection, and promotes rapid healing with minimal scarring, reducing the physical burden on patients and medical staff while enhancing wound regeneration.
Implementation Method 1
The important component could rapidly seal the wound area, absorb wound exudation
Implementation Method 2
The important component could rapidly seal the wound area, absorb wound exudation, forms a transparent thin scab
Implementation Method 3
water-soluble Laurocapram or decyl methyl sulfoxide and water in a specific ratio
Data Source
Figure 1
AI summary
The invention generally relates to a liquid topical pharmaceutical composition used in treating various skin wounds. The composition is characterized by strong moisture absorption and retention capabilities and being able to quickly seal the wound. The composition can resist oxidation, effectively inhibit bacteria and sterilization, protect germinal cells from further damage, eliminate wound swelling and promote wound healing. The pharmaceutical composition can be widely used in the treatment of burn, skin abrasion, laceration, infectious skin ulcer and wound exposure, save dressing and be used in a convenient and highly effective way.