Antiseptic Wound Irrigation Device with Solid Precursor Reservoir
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Solution Overview
Problem
Existing antiseptic hypochlorite solutions face challenges in storage stability due to the conversion of hypochlorite ions into less effective chlorate and chloride ions, and there is a need for sterile and stable solutions for medical use.
Innovation Solution
A device is designed to produce an antiseptic wound fluff solution by using a solid form of antiseptic active ingredients, which can be easily dissolved in a sterile saline solution, thereby maintaining stability and sterility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If antiseptic hypochlorite solutions are prepared in advance and stored, then convenience of use is improved, but storage stability deteriorates due to conversion of hypochlorite ions to chlorate and chloride ions
Solution Approach 1:
The device separates the hypochlorite source (solid precursor in reservoir) from the aqueous solution (in container), allowing them to remain distinct during storage. The solid precursor is contained in a separate reservoir that can be connected to the container only when needed, preventing premature contact and decomposition while maintaining convenience of use.
Solution Approach 2:
The device prepares components for future use by pre-storing the solid hypochlorite precursor in the reservoir and the aqueous solution in the container separately. Both components are readied in advance but remain isolated, enabling quick preparation of the antiseptic solution when needed without compromising storage stability.
2Loss of time
If antiseptic solutions are prepared in advance, then time of administration is reduced, but sterility deteriorates due to contamination risks during storage
Solution Approach 1:
The device employs a single-use design where the reservoir containing the solid precursor is discarded after one use. This disposable approach eliminates sterility concerns associated with long-term storage of prepared solutions, as each device is sterile when new and is used immediately, reducing administration time while maintaining reliability.
Solution Approach 2:
The device acts as a sterile intermediary system that prepares the antiseptic solution at the point of use rather than storing it. The reservoir and container system provides a sterile barrier until the moment of administration, allowing quick preparation without compromising sterility through intermediate storage.
3Stability of the object's composition
If solid precursors are used to prepare hypochlorite solutions, then storage stability is improved, but device complexity increases due to additional components needed for dissolution
Solution Approach 1:
The device merges the reservoir containing the solid precursor with the container holding the aqueous solution into a single integrated system. The reservoir connects directly to the container, allowing the solid precursor to dissolve in the solution through simple connection and agitation, maintaining storage stability while minimizing device complexity through functional integration.
Solution Approach 2:
The device enables self-service preparation where the solid precursor automatically dissolves in the aqueous solution upon connection and agitation by the user. No complex dissolution mechanisms are needed - the system relies on simple mixing actions to prepare the antiseptic solution, reducing device complexity while maintaining storage stability through separate component storage.
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 device allows for the quick, easy, and cost-effective production of a ready-to-use antiseptic solution, ensuring long-term storage stability and sterility, while also enabling direct administration to patients.
Implementation Method 1
a liquid-permeable filter arranged at the outlet of the reservoir and configured to retain the active ingredient in solid form in the reservoir
Implementation Method 2
to dissolve the active ingredient in the liquid
Data Source
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AI summary
The present invention relates to a device for producing an active ingredient solution, preferably an antiseptic wound irrigation solution, comprising: - a connecting element designed and configured for liquid-tight connection to a container; - a spike designed and configured for piercing a septum of a container.- a reservoir containing an active ingredient in solid form, which can be fluid-conducted to the connection element via an outlet of the reservoir; - a fluid-permeable filter arranged at the outlet of the reservoir and configured to retain the active ingredient in solid form within the reservoir; - a fluid element configured to receive a liquid from a container into the reservoir and/or to dispense a liquid from the reservoir; wherein the device is designed and configured to receive a liquid from a container into the reservoir, to dissolve the active ingredient in the liquid, and to dispense the dissolved active ingredient to a patient via the connection element.