Modular Radioactive Particle Administration System
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Solution Overview
Problem
Existing administration systems for radioactive particles lack precision in delivering doses, requiring complete vial emptying to determine the administered dose, and pose safety concerns due to operator proximity to radioactive materials.
Innovation Solution
A modular administration system comprising an administration subsystem with movably mounted hydraulic elements for homogenizing mixtures and an actuation subsystem for precise control, allowing for remote operation and enhanced safety, including MRI compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a vial is completely emptied to determine the administered dose, then the total amount of activity is known, but precise dose administration to multiple locations is not possible
Solution Approach 1:
The system divides the single vial content into multiple administrable portions using a Y-type connection. The splitter divides the flow from one vial into multiple output lines, allowing precise dose administration to multiple locations without needing to empty the entire vial at once. Each location receives a controlled portion of the total activity.
Solution Approach 2:
A suspension bag acts as an intermediary between the vial and the administration lines. The suspension bag receives the radioactive suspension from the vial and distributes it through multiple output lines to different locations, enabling precise control and multi-location administration while maintaining accurate dosing.
2Ease of operation
If an operator manually operates valves near the radioactive suspension, then the system can be controlled, but operator safety is compromised due to radiation exposure
Solution Approach 1:
The operator is extracted from the hazardous zone by implementing a remote operation capability. The system allows control of the administration process from a distance, removing the operator's hands and body from proximity to the radioactive material while maintaining full control over the administration process.
Solution Approach 2:
A remote operation mechanism serves as an intermediary between the operator and the radioactive suspension. This allows the operator to control the administration system without direct physical contact or close proximity to the radioactive material, minimizing radiation exposure while maintaining operational control.
3Stability of the object's composition
If a rotating vial system is used to homogenize suspension, then mixing is achieved, but operation becomes cumbersome and inaccurate
Solution Approach 1:
The rotation mechanism is extracted from the vial itself and replaced with a stationary vial design. Instead of rotating the vial to achieve homogeneity, the system uses a separate suspension bag that can be agitated or mixed through other means, while the vial remains fixed and easier to handle.
Solution Approach 2:
Instead of rotating the vial to achieve mixing, the system inverts the approach by using a stationary vial connected to a suspension bag that can be mixed through alternative mechanisms. The homogenization function is separated from the vial rotation, allowing the vial to remain simple and the mixing to be achieved through other means.
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 system enables accurate and predictable administration of radioactive particles, improving safety by allowing remote operation and reducing exposure to radioactive materials, while being compatible with MRI environments.
Implementation Method 1
the at least one administration hydraulic element is movably mounted for, when moving, homogenizing the mixture with the particles
Implementation Method 2
the at least one actuation hydraulic element is operably connected to the at least one administration hydraulic element for actuating said administration hydraulic element
Data Source
AI summary
A system (1) for administration of a mixture of particles, the system comprising an administration subsystem (3) comprising at least one administration hydraulic element (14) for containing a mixture with the particles, wherein the at least one administration hydraulic element is movably mounted for, when moving, homogenizing the mixture, wherein said at least one administration hydraulic element is arranged for administering of the mixture to a further system (15), an actuation subsystem (2) comprising at least one actuation hydraulic element (4); wherein the at least one actuation hydraulic element is operably connected to the at least one administration hydraulic element for actuating said administration hydraulic element to administer mixture to the further system; wherein the at least one actuation hydraulic element is further fluidly connected with an operating element (5) to operate the at least one actuation hydraulic element.


