Magnetic Injector Actuation Without Springs or Motors
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Solution Overview
Problem
Current automatic injection apparatuses face complexity in structural design due to the use of springs or motors for driving the push rod, leading to increased size, weight, and manufacturing costs, and require additional power sources for motor operation.
Innovation Solution
A magnetic force-driven injection apparatus utilizing a sleeve, power supply unit, first and second actuators, and a magnetic force-generating unit, where magnetic attraction or repulsion is generated between the actuators to drive the second actuator towards or away from the vial, simplifying the structural design and enabling reusability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If springs are used as the driving force source to move the push rod, then the push rod can be driven to move, but the structural configuration and engagement design of multiple components becomes overly complex
Solution Approach 1:
The patent replaces the traditional spring-based mechanical driving system with a magnetic driving system. The magnetic driving unit generates magnetic fields that directly act on the push rod, eliminating the need for complex spring mechanisms, engagement designs, and multiple intermediate components. This substitution of mechanical systems with magnetic fields resolves the contradiction by maintaining automatic injection functionality while dramatically simplifying the overall structure.
Solution Approach 2:
The patent extracts and removes the complex spring-based mechanical transmission components from the injection apparatus. By taking out the spring mechanism and replacing it with a direct magnetic driving approach, the patent eliminates unnecessary intermediate components and engagement designs, thereby simplifying the structural configuration while preserving the core injection function.
2Ease of operation
If motors are used as the driving force source to move the push rod, then the push rod can be driven to move, but additional power supply is required and the size and weight of the apparatus increases
Solution Approach 1:
The patent replaces the motor-based mechanical driving system with a magnetic driving system. Instead of using motors that require power supplies, gears, and mechanical transmission components, the patent uses a magnetic driving unit that generates magnetic fields to directly propel the push rod. This substitution eliminates the motor and power supply components, significantly reducing the apparatus weight while maintaining automatic injection capability.
3Ease of operation
If motors are used as the driving force source to move the push rod, then the push rod can be driven to move, but the size of the apparatus increases
Solution Approach 1:
The patent replaces the motor-based mechanical driving system with a compact magnetic driving system. The magnetic driving unit requires minimal space compared to motors, power supplies, and mechanical transmission components. By substituting the bulky motor system with a compact magnetic field generation system, the patent significantly reduces the apparatus size while preserving automatic injection functionality.
4Ease of operation
If motors are used as the driving force source to move the push rod, then the push rod can be driven to move, but manufacturing costs increase
Solution Approach 1:
The patent replaces the motor-based mechanical driving system with a magnetic driving system, which uses fewer components and simpler assembly requirements. The magnetic driving unit eliminates the need for motors, power supplies, gears, and other mechanical transmission components, thereby reducing manufacturing complexity and cost. This substitution maintains automatic injection functionality while making the apparatus more cost-effective to manufacture.
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 magnetic force-driven injection apparatus simplifies the structural design, facilitates easy assembly, and allows for repeated use by changing the direction of magnetic force to control the actuator's movement, thereby improving user convenience and reducing complexity.
Implementation Method 1
a magnetic attraction or a magnetic repulsion is created between the first actuator and the second actuator
Implementation Method 2
a magnetic attraction or a magnetic repulsion is created between the first actuator and the second actuator
Implementation Method 3
the coil part is capable of surrounding the first actuator or the second actuator, and two ends of the coil part are electrically connected to the drive control part
Data Source
AI summary
The present invention discloses a magnetic force-driven apparatus designed to perform injection operations by being installed with a vial. The magnetic force-driven injection apparatus includes a sleeve, a power supply unit, a first actuator, a second actuator, and a magnetic force generating unit. The magnetic force-generating unit is selectively coupled with either the first actuator or the second actuator. When the magnetic force-generating unit generates a magnetic force, it generates either a magnetic attraction or a magnetic repulsion between the first actuator and the second actuator, so the second actuator is driven either toward the vial closely to activate the injection or farther away from the vial after the injection.