Surgical Table Load Detection in Leg Portions to Prevent Overturning
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Solution Overview
Problem
Surgical operation tables face the risk of overturning due to changes in height and inclination, and failure from excessive loads, requiring accurate measurement of center of gravity and load without significant design changes to prevent these issues.
Innovation Solution
A medical device with leg portions that lift and support the table, incorporating load detection means between the main body and leg portions, and a hydraulic unit that extends or contracts to adjust the position of casters, allowing for accurate load measurement and risk determination of overturning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If load detection means is added to measure center of gravity and load, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The load detection means is integrated into the existing leg portions that support the main body. The detection means is provided between the main body and each leg portion, utilizing the structural space already present in the support mechanism, thereby adding measurement capability without significantly increasing overall device complexity
Solution Approach 2:
The leg portions serve dual functions: mechanical support for the main body and integration of load detection means for measuring vertical loads. This multi-functionality allows the same structural element to perform both support and measurement roles, avoiding additional dedicated components
2Reliability
If overturning prevention mechanism is implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The determination means continuously monitors load distribution data from the load detection means and provides feedback about overturning risk. When the center of gravity shifts beyond safe limits, the system can alert operators or trigger preventive actions, creating a closed-loop safety mechanism that uses real-time data to maintain stability
Solution Approach 2:
The determination means calculates and assesses overturning risk before actual overturning occurs by analyzing load distribution patterns. This preliminary assessment allows preventive measures to be taken in advance, such as redistributing weight or alerting operators, rather than reacting after the problem has manifested
3Measurement precision
If multiple load detection means are provided for accurate measurement, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
Instead of using a single complex load measurement system, the invention divides the measurement function across multiple simple load detection means, each installed in individual leg portions. This segmentation allows each detector to measure local load independently, and the collective data provides comprehensive center of gravity and load distribution information, achieving high measurement precision through multiple simple components rather than one complex expensive system
Data Source
AI summary
Medical device capable of properly measuring a center of gravity and capable of preventing overturning of a surgical operation table is provided without performing a significant design change. Medical device S, which includes a plurality of leg portions 20 that lift up a main body 2 from a floor surface and support the main body 2, includes load detection devices 55 that are provided between the main body 2 and the respective leg portions 20, and detect loads in a vertical direction received by the leg portions 20 from the floor surface.