Medical Fluid Mixing Device with Resilient Snap Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing medical fluid mixing devices pose safety risks due to leakage of hazardous substances during drug preparation and administration, and are often costly due to the use of numerous components and adhesive connections.
Innovation Solution
A device with an inlet port, injection port, and outlet port, sealed by fluid-proof membranes, using a combined friction coupling and snap connection between portions made of different materials, allowing safe mixing of medical fluids without adhesives and with a minimal number of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive connections and numerous components are used in medical fluid mixing devices, then sealing reliability is improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The patent combines multiple functions into a single integrated body structure that includes the inlet port, injection port, outlet port, and mixing chamber. This merging eliminates the need for separate components and adhesive connections while maintaining sealing reliability through the integrated design and resilient material properties.
Solution Approach 2:
The patent utilizes the parameter of material resilience, employing a resilient material for the body that can deform elastically to provide sealing forces. This parameter change from rigid to resilient material allows the device to maintain reliable sealing without requiring multiple components or adhesives.
2Reliability
If adhesive connections are used in medical fluid mixing devices, then sealing reliability is improved, but manufacturing safety and environmental friendliness worsen due to adhesive exposure
Solution Approach 1:
The patent extracts and eliminates the adhesive substance from the device design entirely. Instead of using adhesives to connect components, the invention relies on the resilient material's elastic deformation to create sealing forces, completely removing the harmful adhesive exposure risk while maintaining sealing reliability.
3Reliability
If numerous components are used in medical fluid mixing devices, then sealing reliability is improved, but manufacturing cost increases
Solution Approach 1:
The patent merges multiple separate components (inlet port, injection port, outlet port, mixing chamber) into a single integrated body structure. This reduction in component count simplifies manufacturing processes, reduces assembly steps, and lowers production costs while maintaining sealing reliability through the resilient material and integrated design.
4Reliability
If fluid-proof membranes are used to seal injection ports, then leakage prevention is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent changes the sealing mechanism from requiring separate fluid-proof membranes to utilizing the elastic deformation parameter of the resilient material itself. The resilient body deforms to create sealing forces at the ports, eliminating the need for additional membrane components and reducing device complexity while maintaining effective leakage prevention.
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 ensures safe introduction of hazardous medical substances into infusion systems, reducing environmental exposure and manufacturing costs by using a simple, adhesive-free design with effective sealing and retention forces.
Implementation Method 1
a second portion (108) made of a second material, wherein the second material is substantially more resilient than the first material
Implementation Method 2
the first and second portions are attached to each other by means of a combined friction coupling and snap connection providing a first retention force
Data Source
AI summary
A device and method for mixing medical fluids is disclosed. The device has an inlet port, an injection port, an outlet port, a first duct between the injection port and the inlet port, and a second duct between the inlet port and the outlet port. The injection port is sealed by a fluid-proof membrane which can be penetrated by an injection needle. The device further includes at least a first portion made of a first material and a second portion made of a second, substantially more resilient material, wherein the inlet port and the injection port are included in the first portion and the outlet port is included in the second portion, and the first and second portions are attached to each other by means of a combined friction coupling and snap connection.