Refill-Type Screw Insulin Pump Intelligent Control
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Solution Overview
Problem
Existing insulin pumps face challenges in achieving high precision and miniaturization while ensuring accurate insulin injection, with existing solutions focusing on structural durability rather than precision and size reduction.
Innovation Solution
An intelligent control method for a refill-type screw insulin injection pump, incorporating a housing with coaxially disposed telescopic screw mechanisms, a power device, and an intelligent control module that uses a pyramid YOLO7 algorithm to control rotational torque and speed, reducing impact force and energy consumption, and featuring a built-in soft limit to prevent overloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional square guide grooves are used in the propulsion mechanism, then the structure is simple to manufacture, but the processing precision requirements are high and jamming occurs due to low precision
Solution Approach 1:
The guide groove is divided into two separate components: a guide rail and a guide rod. The guide rail provides the tracking path while the guide rod follows it, allowing independent optimization of each component. This segmentation enables the use of simpler manufacturing processes while achieving high positioning precision through the coordinated interaction of the two elements.
Solution Approach 2:
The guide rod acts as an intermediary element between the propulsion mechanism and the injection system. It translates the motion along the guide rail into precise linear movement, mediating the interaction between the simple guide rail structure and the requirement for high manufacturing precision.
2Volume of moving object
If the insulin pump size is reduced to achieve miniaturization, then the device becomes more portable, but controlling the injection amount with high precision becomes more difficult
Solution Approach 1:
The guide rod is nested within the propulsion mechanism housing, and the injection components are nested within the guide rod assembly. This nested configuration maximizes space utilization, allowing high-precision measurement and control components to be accommodated within a compact overall structure, thereby achieving miniaturization without sacrificing injection precision.
Solution Approach 2:
The patent replaces traditional mechanical measurement systems with optical or electromagnetic sensing mechanisms that can achieve high precision in compact form factors. This substitution allows for accurate injection amount measurement while maintaining a small pump size.
3Duration of action of stationary object
If the driving mechanism service life is extended through integrated assembly, then the structural durability is improved, but the injection precision and pump miniaturization are not addressed
Solution Approach 1:
The driving mechanism is segmented into modular components (guide rail, guide rod, propulsion unit) that can be independently optimized. This allows the service life to be extended through robust mechanical design while simultaneously incorporating precision measurement systems for accurate injection control.
Solution Approach 2:
The guide rail and guide rod assembly serves multiple functions: it ensures long-term structural durability through its robust design, enables precise positioning for accurate injection, and allows for compact configuration. This multi-functionality resolves the contradiction between service life extension and injection precision.
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 solution enables accurate control of insulin injection, high-precision medicine delivery, significant size reduction of the pump, reduced energy consumption, and an anti-locking function, effectively addressing the limitations of existing technologies.
Implementation Method 1
a primary telescopic screw mechanism, a secondary telescopic screw mechanism... the power device drives the primary telescopic screw mechanism to telescope, the secondary telescopic screw mechanism is installed inside the primary telescopic screw mechanism and is in transmission connection with the primary telescopic screw mechanism
Data Source
AI summary
Disclosed is an intelligent control method for a refill-type screw insulin injection pump, including the following steps: starting the refill-type screw insulin injection pump, and filling prefabricated liquid insulin medicine into the refill injection mechanism; operating the key operation module to enable the intelligent control module to control the power device to work; when the primary telescopic screw mechanism extends to a limit, the sensor assembly transmits a signal to the intelligent control module, and the intelligent control module controls a rotational speed of the power device to be slowed down to reduce impact force of the primary telescopic screw mechanism; the refill injection mechanism performs the injection of liquid insulin medicine; and repeating the above steps, and refilling liquid insulin medicine to prepare for the next injection upon completion of the injection of liquid insulin medicine.