Portable Infusion Device Elevating Mechanism
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Solution Overview
Problem
Conventional drip bags require manual adjustment or carrying to maintain a higher position for fluid infusion, causing inconvenience when patients need to move.
Innovation Solution
A portable infusion device with an elevating mechanism and locking system that allows the infusion bag to be carried at a convenient height, eliminating the need for manual adjustment, featuring a case with a plate and elevating mechanism connected by a torque spring and locking mechanism for easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drip bag is hung on a hanger to maintain high position for gravity-based infusion, then the infusion function is achieved, but the patient's mobility is restricted and convenience deteriorates
Solution Approach 1:
The patent implements a dynamic positioning system where the drip bag can be elevated to the required height only during infusion and lowered when not in use. The elevating mechanism allows the bag to move between a stored low position and an operational high position, enabling patients to move freely when the bag is lowered while maintaining proper infusion height when needed.
Solution Approach 2:
The system separates the infusion bag positioning function from the patient's movement. The bag is mounted on a movable platform that can be independently elevated or lowered, allowing the patient's body position to remain independent and mobile while the bag position is controlled separately by the elevating mechanism.
2Adaptability or versatility
If the drip bag is held at high position by hand during patient movement, then infusion continues, but patient convenience and ease of operation deteriorates
Solution Approach 1:
The elevating mechanism automatically performs the function of positioning the drip bag at the required height without requiring manual intervention from the patient. The mechanical system self-adjusts the bag position, freeing the patient from the burden of holding the bag while maintaining proper infusion conditions.
3Adaptability or versatility
If a portable infusion device with elevating mechanism is used to enable patient mobility, then patient convenience and mobility are improved, but device complexity increases
Solution Approach 1:
The patent replaces complex electronic or motorized elevating systems with a simpler mechanical advantage-based mechanism. By using levers, pulleys, or screw mechanisms, the system achieves elevation with minimal components, reducing overall device complexity while maintaining the core functionality of height adjustment.
Solution Approach 2:
The elevating mechanism utilizes vertical space efficiently by collapsing or folding when not in use. The mechanism can be stored in a compact configuration within the device housing, adding minimal bulk to the portable unit while providing full elevation capability when activated.
4Ease of operation
If the elevating mechanism is added to enable bag elevation without high position requirement, then portability is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The elevating mechanism is designed with adjustable parameters that can be modified during manufacturing to accommodate different bag weights and sizes. The mechanism uses standard mechanical components with variable dimensions, allowing manufacturers to adjust the system for different applications without redesigning the entire mechanism, thereby simplifying production.
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
Enables the infusion bag to be easily carried and operated without needing to be held at a higher position, enhancing portability and convenience during fluid infusion.
Implementation Method 1
The torque spring sleeves the rotation shaft, and has two ends respectively connected to the second side of the first frame and the fourth side of the second frame. The torque spring is configured to rotate the first frame and the second frame with respect to each other, such that the plate elevates away from the bottom portion of the case from a first position to a second position.
Implementation Method 2
The movable engagement element has a second engagement portion, and another end of the compression spring abuts the movable engagement portion. As the plate moves from the second position to the first position, the first engagement portion pushes the second engagement portion, driving the movable engagement element to move toward the side wall in a first direction and compress the compression spring. When the plate moves to the first position, the first engagement portion releases the second engagement portion, and the compression spring pushes the second engagement portion to move in a second direction opposite to the first direction, to engage the first engagement portion.
Data Source
AI summary
A portable infusion device adapted to hold an infusion bag is provided. The infusion bag includes a bag body and an infusion tube connected to the bag. The portable infusion device includes a case, a plate and an elevating mechanism. The case includes an accommodating space for accommodating the bag body. The case has an aperture. The infusion tube is adapted to pass through the aperture. The plate is disposed in the receiving space and is adapted to carry the bag body. The elevating mechanism is disposed in the accommodating space and is movably connected to the case. The plate is fixed on the elevating mechanism. The elevating mechanism is adapted to push the plate to move. The portable infusion device is easily carried in use.