Syringe Mount With Perpendicular Actuator For Injector Alignment
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Solution Overview
Problem
Existing medical fluid injectors require large, high-mass injection motors and drive trains due to the need for large flow rates and pressures, making them cumbersome and difficult to efficiently mount and dismount syringes during medical procedures.
Innovation Solution
A syringe mount with a movable actuator and pivotable members that allow for perpendicular movement, enabling easy attachment and detachment of syringes from the injector, facilitating alignment with the drive ram and accommodating various syringe sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If large, high-mass injection motors and drive trains are used to achieve large flow rates and injection pressures, then the injection capability is improved, but the device complexity and ease of operation deteriorate
Solution Approach 1:
The syringe mounting system is divided into separate functional components: a movable actuator that can be independently operated from the main injection motor and drive train. This segmentation allows the heavy motor to remain stationary while a lighter actuator handles syringe mounting/dismounting operations, resolving the contradiction between high power requirements and ease of operation.
Solution Approach 2:
A movable actuator serves as an intermediary mechanism between the operator and the syringe. This intermediary component enables easy syringe mounting and dismounting without requiring direct manipulation of the heavy motor and drive train, thus improving ease of operation while preserving the high power capability of the main injection system.
2Power
If large, high-mass injection motors and drive trains are used to achieve large flow rates and injection pressures, then the injection capability is improved, but the device complexity increases
Solution Approach 1:
By segmenting the mounting mechanism from the main injection system, the patent reduces overall device complexity. The movable actuator is a simpler, lighter component that can be independently controlled, reducing the complexity of the integrated system while maintaining the high power output capability of the main motor.
3Ease of operation
If the actuator moves in a direction substantially perpendicular to the longitudinal axis of the syringe, then the ease of operation is improved, but the alignment precision may worsen
Solution Approach 1:
The movable member is designed to dynamically respond to the actuator's perpendicular movement by pivoting toward or away from the reference axis. This dynamic adjustment mechanism allows the system to maintain precise alignment during the mounting and dismounting operations, resolving the contradiction between ease of operation and alignment precision.
Solution Approach 2:
The movable member acts as an intermediary element that translates the actuator's perpendicular motion into precise alignment adjustments. This intermediary mechanism ensures that even though the actuator moves perpendicular to the syringe axis for ease of operation, the final positioning maintains the required alignment precision through the pivoting action of the movable member.
Data Source
AI summary
In certain embodiments, a syringe mount of the invention may include a plate, an actuator, and one or more movable members located between the plate and the actuator. Each of the plate and the actuator may have an orifice defined therein, and an imaginary reference axis of the syringe mount may extend through one or both of these orifices. The actuator may be movable relative to the plate in a direction substantially perpendicular to the reference axis. Further, the moveable member(s) may be designed to move (e.g., pivot) toward the reference axis due to movement of the actuator from a first position to a second position and to move (e.g., pivot) away from the reference axis due to movement of the actuator from the second position to the first position.