Microbial Scrub Brush for Female Luer Cleaning
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Solution Overview
Problem
Current methods fail to effectively clean female luers prior to reconnecting new sterile extension line sets, leading to increased infection rates, with no specific product addressing this need.
Innovation Solution
A microbial scrub brush featuring a foam insert impregnated with anti-bacterial disinfectant, housed in a rotatable device that can be securely handled and used to clean both the exterior and interior surfaces of a female luer, ensuring sterility and easy disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a alcohol prep pad is used to clean the female luer, then the cleaning process is simple and quick, but the cleaning effectiveness is insufficient leading to increased infection rates
Solution Approach 1:
The patent employs a porous foam insert that can absorb and retain antibacterial disinfectant solution within its cellular structure. This porous material allows the disinfectant to be held in sufficient quantity to effectively clean both the exterior and interior surfaces of the female luer connector, addressing the insufficient cleaning effectiveness of traditional alcohol prep pads while maintaining ease of use through a simple single-use device
Solution Approach 2:
The foam insert is pre-impregnated with antibacterial disinfectant solution during manufacturing, so that when the user removes the cap and applies the device to the female luer, the cleaning action is immediately effective without requiring separate application of disinfectant. This preliminary preparation ensures reliable infection prevention while keeping the operation simple
2Reliability
If a specialized disinfecting device is introduced to clean female luers, then infection prevention improves, but device complexity increases
Solution Approach 1:
The device is segmented into three simple components: a housing, a foam insert, and a cap. This segmentation allows each component to perform its specific function (housing provides structure, foam insert provides disinfecting action, cap provides protection) while keeping the overall device simple and easy to manufacture, avoiding unnecessary complexity despite the specialized disinfecting function
Solution Approach 2:
The device is designed as a disposable single-use item that can be manufactured cheaply and thrown away after one use. This approach eliminates the need for complex cleaning, sterilization, and maintenance systems, providing reliable infection prevention through a simple, economical device that ensures sterility without requiring complex device management
3Reliability
If the foam insert is made large enough to clean both exterior and interior surfaces, then cleaning effectiveness improves, but the housing size increases making it difficult to handle
Solution Approach 1:
The foam insert is designed to be compressible and deformable, allowing it to be compressed during insertion into the female luer and then expand to contact both the exterior and interior surfaces. This dynamic behavior enables comprehensive cleaning effectiveness while keeping the housing compact and easy to handle, as the foam adapts its shape during use rather than requiring a large rigid structure
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 scrub brush effectively disinfects female luers, reducing infection risks by providing a simple, economical, and sterile method for cleaning both the outer and inner surfaces during connection and disconnection processes.
Implementation Method 1
a piece of foam material that is impregnated with an anti-bacterial disinfectant
Implementation Method 2
The swab is secured, for example, by an adhesive, within the housing
Data Source
Figure 1~6
Figure 7~11
Figure 12~18
AI summary
The microbial scrub brush (20) employs an insert of foam material (22, 22', 22", 22"', 47, 47') that is impregnated with an anti-bacterial disinfectant that is housed within a housing (21, 21', 51) of alcohol compatible material and sealed over by a removable lid (23). The insert (22, 22', 22", 22"', 47, 47') is maintained in sterile condition until ready for use. After the removal of the lid (23), the insert of foam material (22, 22', 22", 22"', 47, 47') is moved over the end of a female luer (40) and rotated in order to clean the outer surface of the luer (40) as well as the interior of the luer (40).