Medical Fluid Pump Center of Gravity Balancing
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Solution Overview
Problem
Medical fluid pumps often tilt during transport, which can impair their functioning and is difficult to prevent without adding complex and costly components that are hard to clean and maintain.
Innovation Solution
The medical fluid pump's housing is kept horizontal in the carrying position by strategically placing electrical and mechanical components as taring weights, such as batteries and motors, to balance the center of gravity under the carrying handle, eliminating the need for additional components like locks or weights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If locking mechanisms are added to prevent housing tilting, then the housing stability is improved, but the device complexity increases and cleaning difficulty worsens
Solution Approach 1:
The invention removes the locking mechanism entirely and instead uses the existing battery component to serve a dual function: power supply and counterweight. By extracting the stabilizing function from a separate mechanical locking system and integrating it into the battery's gravitational function, the device complexity is reduced while maintaining housing stability during transport.
2Stability of the object's composition
If locking mechanisms are added to prevent housing tilting, then the housing stability is improved, but the ease of cleaning worsens due to additional crevices and components
Solution Approach 1:
The invention merges the power supply function and the counterweight function into a single component (the battery). This consolidation eliminates the need for separate locking mechanisms and their associated crevices, joints, and moving parts, thereby maintaining housing stability while significantly improving ease of cleaning.
3Stability of the object's composition
If metallic balancing weights are added to shift the center of gravity, then the housing horizontal alignment is improved, but the overall weight increases making handling more difficult
Solution Approach 1:
The invention makes the battery multi-functional by using it both as a power source and as a counterweight. This eliminates the need for separate metallic balancing weights, achieving the desired center of gravity adjustment and housing horizontal alignment without increasing the overall weight of the device.
4Adaptability or versatility
If additional moving components like displaceable bearings are added to make carrying position variable, then the adaptability is improved, but the device complexity increases and handling difficulty worsens
Solution Approach 1:
The invention uses the battery's fixed position and gravitational force to automatically stabilize the housing in a horizontal orientation during transport. The system serves itself by using an existing component (battery) to provide the stabilizing function, eliminating the need for complex displaceable bearings or adjustable mechanisms, thereby maintaining adaptability while reducing device complexity and handling difficulty.
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
This solution ensures the medical fluid pump remains horizontal and functional during transport, preventing tilting and reducing the risk of germ buildup and increased weight, while maintaining ergonomic handling and reducing costs.
Implementation Method 1
A battery 32 is arranged in a second longitudinal half ZLH of the housing 4 facing a rear side 34 of the housing 4. The power pack 32 is designed to rest against the rear side 34 of the housing 4. The carrying handle 18 and the battery 32, in particular the power pack 32, are arranged in such a way that a center of gravity of the medical fluid pump 2 is arranged below the carrying handle 18 in the carrying position.
Data Source
Figure 1~3
Figure 4~5
AI summary
The disclosure relates to a medical fluid pump (2), in particular in the form of a syringe or infusion pump (26; 54), comprising a housing (4), a front flap hinged to a front of the housing, a carrying handle (18) pivotally hinged to opposing first and second side surfaces (44; 46), which can be pivoted from a storage position to a carrying position in which it is located above the housing (4), and a number of electrical and mechanical components within the housing (4) that are necessary for all intended functions of the medical fluid pump (2). A selection of components from the electrical and mechanical components within the housing (4) are provided as balancing elements, which are positioned within the housing (4) such that the center of gravity of the medical fluid pump (2) is located substantially below the carrying handle (18) in the carrying position.