Aseptic Amniotic Fluid Collection Cannula
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Solution Overview
Problem
Current methods for collecting mammalian amniotic fluid are not aseptic, leading to bacterial contamination and inefficiency, as they fail to isolate the extraction site effectively and often result in the loss of valuable proteins.
Innovation Solution
A placental fluid recovery apparatus using a cannula with a concentric opening and suction mechanism to aseptically collect amniotic fluid, which includes an extraction needle to puncture the amniotic sac and a suction system to draw the fluid, ensuring sterility and efficient collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current collection techniques are used, then the extraction process is simple, but bacterial contamination occurs and the amniotic fluid is not collected aseptically
Solution Approach 1:
The device is divided into distinct functional segments: an external flange for external handling, a cannula for insertion, a hollow chamber for isolation, and a collection chamber for fluid storage. This segmentation allows each component to perform its specific function while maintaining overall sterility.
Solution Approach 2:
The hollow chamber acts as an intermediary sterile barrier between the non-sterile external environment and the amniotic fluid collection area. This intermediate structure prevents direct contact between contaminated external surfaces and the fluid being collected.
2Reliability
If current collection techniques are used, then the procedure is quick, but other bodily fluids (urine, feces) contaminate the amniotic fluid
Solution Approach 1:
The extraction needle penetrates through the hollow chamber wall to access and extract amniotic fluid from the amniotic sac while leaving the hollow chamber's sterile environment intact. This allows fluid extraction without compromising the isolation barrier.
Solution Approach 2:
The hollow chamber provides localized sterile isolation precisely at the extraction site where the needle penetrates the amniotic sac. This localized approach ensures that only the necessary area is isolated, maintaining fluid purity without requiring complete system complexity.
3Productivity
If current collection techniques are used, then the equipment is simple, but valuable proteins are lost and collection efficiency is low
Solution Approach 1:
The hollow chamber and collection chamber are connected to form a continuous sterile pathway from the amniotic sac to the collection container. This merged sterile environment ensures that all fluid extracted is captured without loss or contamination, maximizing collection efficiency.
Solution Approach 2:
The system maintains continuous sterile isolation throughout the entire fluid extraction and collection process. The hollow chamber remains sealed and sterile from insertion through extraction to collection, ensuring no protein loss or contamination occurs at any stage.
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 apparatus achieves aseptic collection of amniotic fluid, reducing contamination risks and improving efficiency by isolating the extraction site and allowing for the collection of all amniotic fluid, thereby lowering costs and enhancing the quality of the collected fluid.
Implementation Method 1
the port structured and arranged to permit at least a partial suction to be established within the hollow chamber
Data Source
AI summary
A system for aseptic collection of mammalian amniotic fluid. The system includes a cannula having an attachment end and external end. The attachment end provides a concentric opening to a hollow chamber disposed about a central passage. The hollow chamber has a port disposed adjacent to the external end permitting at least a partial suction to be established within the hollow chamber, the attachment end thereby suctionally attached to a surface when the attachment end is disposed upon the surface. The central passage provides access to a central portion of the surface surrounded by the concentric opening of the hollow chamber. An extraction needle is disposed within the central passage of the cannula and presented to the central portion of the surface. The extraction needle penetrates the central portion of the surface and extracts amniotic fluid there beneath. An associated method of use is also provided.