Medical Suction Pump Angled Carrier Design
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Solution Overview
Problem
Medical suction pumps face challenges in being both compact and robust, with noise generation and transmission due to vibration, and existing designs often require larger housings to accommodate energy accumulators and pump assemblies.
Innovation Solution
A motorized medical suction pump design featuring a pump assembly carrier that integrates the pump assembly and energy accumulator, with an angled arrangement to minimize space, and uses elastic bearings for vibration reduction and sound damping, along with a sound-damping housing to reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the pump assembly and energy accumulator are arranged separately in the pump housing, then each component can be independently positioned, but the pump housing becomes larger and less compact
Solution Approach 1:
The pump assembly carrier is designed to integrate both the pump assembly and energy accumulator into a single structural unit. The carrier forms a common mounting structure that holds both components in fixed relative positions, eliminating the need for separate positioning arrangements and reducing overall housing volume while maintaining organizational complexity at an acceptable level.
Solution Approach 2:
The pump assembly and energy accumulator are arranged at an angle to each other on the pump assembly carrier, utilizing three-dimensional space more efficiently. This angular arrangement allows both components to coexist in a compact configuration that minimizes the bounding box volume of the pump housing while maintaining accessibility and structural integrity.
2Weight of moving object
If the pump assembly is made small for portability, then the device becomes more portable, but it may compromise the robustness and stiffness of the structure
Solution Approach 1:
The pump assembly carrier is constructed from composite materials or optimized polymer structures that provide high strength-to-weight ratio. This allows the carrier to maintain sufficient stiffness and robustness for supporting the pump assembly and energy accumulator while keeping the overall weight low for portability. The integrated carrier design distributes mechanical loads efficiently across both components.
3Object-generated harmful factors
If the pump assembly is embedded in a sound-damping environment, then noise is reduced, but the housing size increases
Solution Approach 1:
The pump assembly is nested within the pump assembly carrier, which itself is integrated into the pump housing. The carrier acts as an intermediate structure that provides sound damping between the noisy pump assembly and the outer housing, while the angular arrangement of components maximizes the use of available space, minimizing the overall housing volume required for effective sound isolation.
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 design results in a compact, robust, and quiet suction pump with minimized vibrations and noise, achieved through the use of a single pump assembly carrier and dual-function elastic bearings, optimizing space usage and sound damping.
Implementation Method 1
minimizes vibrations during the operation of the pump assembly and thus reduces the generation and transmission of noise
Implementation Method 2
elastic bearing of the pump assembly inside a pump housing... reduces the generation and transmission of noise
Data Source
AI summary
A motorized medical suction pump has a pump assembly for generating an underpressure, a pump assembly carrier for supporting the pump assembly, and a seat for receiving an energy accumulator. The pump assembly arranged in the pump assembly carrier defines a first longitudinal axis, and the seat defines a second longitudinal axis. The pump assembly carrier forms the seat. The second longitudinal axis extends at an angle to the first longitudinal axis. This suction pump is small and compact and has good sound damping.