Bilaterally Driven Drug Infusion Device with Multiple Modes
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Solution Overview
Problem
Current bilaterally driven drug infusion devices with multiple infusion modes lack flexibility in controlling the infusion process, resulting in inefficient drug delivery and significant fluctuations in substance concentrations in the patient's body fluid due to limited infusion increments and rates.
Innovation Solution
A bilaterally driven drug infusion device with a driving unit that enables multiple-mode operation, featuring pivotable driving arms and a power unit that outputs forces in two directions, allowing for various movement amplitudes and rates, enabling multiple infusion increments and rates, and includes ratchet teeth for adjustable rotation, allowing for precise control of the infusion process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the driving unit operates in a single mode with fixed increment, then the device structure is simple, but the infusion process cannot be flexibly controlled and infusion efficiency is low
Solution Approach 1:
The driving unit is designed with dynamic characteristics, allowing it to switch between different operation modes (first operation mode and second operation mode) with different movement amplitudes and rates. This enables the infusion device to adapt to different infusion requirements while maintaining a relatively compact structure through mode switching rather than multiple separate mechanisms.
Solution Approach 2:
The patent changes the operational parameters of the driving unit, specifically the movement amplitude and movement rate, to create multiple infusion modes. By adjusting these parameters, the device achieves flexible infusion control with different increments and rates without fundamentally changing the core structure, thus balancing adaptability with structural simplicity.
2Measurement precision
If the minimum infusion increment is large, then the device structure is simple, but the concentration of substance in patient body fluid fluctuates greatly
Solution Approach 1:
The driving unit's movement is segmented into different modes with different amplitudes. The first operation mode provides a first movement amplitude while the second operation mode provides a second movement amplitude, allowing precise control of infusion dosage. This segmentation enables small incremental adjustments without requiring an overly complex multi-component mechanism.
Solution Approach 2:
The driving unit alternates between different operation modes in a periodic manner, switching between first and second operation modes to achieve different infusion increments. This periodic switching allows precise dosage control by selecting appropriate modes, reducing substance concentration fluctuations while maintaining a relatively simple driving mechanism.
3Productivity
If the driving unit has multiple operation modes with different movement amplitudes and rates, then the infusion efficiency is improved, but the device complexity increases
Solution Approach 1:
The driving unit is designed as a multi-functional component that can perform multiple operation modes (first and second modes) with different movement amplitudes and rates. This universal design allows a single driving unit structure to achieve various infusion requirements, improving infusion efficiency without proportionally increasing device complexity through multiple separate mechanisms.
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 provides flexible and precise control over drug infusion, reducing the minimum infusion dosage and minimizing concentration fluctuations in the patient's body fluid, thereby improving infusion efficiency and patient management of physiological conditions.
Implementation Method 1
the power unit, connected to the driving unit, outputs forces in two different directions on the driving unit to lead driving unit to perform multiple-mode operation
Implementation Method 2
the driving wheel, provided with wheel teeth, drives the screw movement by rotation
Implementation Method 3
the driving wheel, provided with wheel teeth, drives the screw movement by rotation
Implementation Method 4
the driving unit includes at least two driving arms, and the driving unit pivots around the pivot shaft to drive driving arms to move
Implementation Method 5
the driving wheel includes at least two sub-wheels, and the driving arm rotates the driving wheel by engaging the wheel teeth
Data Source
Figure 1~2a
Figure 2b~2c
Figure 3a~3b
AI summary
A bilaterally driven drug infusion device with multiple infusion modes comprises: a drug storage unit (150); a piston (160) and a driving wheel (130,630) respectively connected with a screw (170), the driving wheel (130,630), provided with wheel teeth (131,631), drives the screw (170) movement by rotation, the piston (160) is arranged in the drug storage unit (150), the screw (170) advances the piston (160) to move; a driving unit (100,200,300,400,500,600) cooperating with the driving wheel (130,630); and a power unit (180,680), connected to the driving unit (100,200,300,400,500,600), outputs forces in two different directions (A',B') on the driving unit (100,200,300,400,500,600) to lead driving unit (100,200,300,400,500,600) to perform multiple-mode operation, making the infusion device have multiple infusion increments or infusion rates. The driving unit (100,200,300,400,500,600) has a variety of different pivot amplitudes, that is, the driving unit (100,200,300,400,500,600) can realize multiple-mode pivot, thereby achieving increment-adjustable infusion.