Resilient Medical Table Side Rails for Impact Deflection
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Solution Overview
Problem
Conventional medical table side rails are prone to permanent deformation under impact forces, which can lead to maintenance issues and reduced durability, and often weigh more than necessary, making them difficult for medical staff to maneuver.
Innovation Solution
The side rails are designed with a material having a modulus of elasticity between 50 GPa to 150 GPa and a yield strength of 40×10^7 Pa to 120×10^7 Pa, allowing them to deflect without permanent deformation under impact and featuring a force-absorbing member to absorb energy, while being lighter and more resilient, often made from materials like 7075-T6 Aluminum or Ti5 Titanium with nickel plating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional side rails are made with higher strength materials to resist impact forces, then durability is improved, but weight increases making them difficult to maneuver
Solution Approach 1:
The patent applies parameter changes by selecting materials with specific mechanical properties: modulus of elasticity between 50-150 GPa and yield strength between 40×10^7 to 120×10^7 Pa. This optimized parameter range allows the side rails to withstand impact forces while maintaining manageable weight, resolving the contradiction between durability and maneuverability
Solution Approach 2:
The patent employs composite materials such as 7075-T6 Aluminum or Ti5 Titanium with nickel plating. This composite structure provides both the strength needed for durability and the weight reduction necessary for ease of maneuvering, simultaneously addressing both requirements
2Reliability
If side rails are made more resilient to deflect under impact, then permanent deformation is reduced, but the side rails may deflect too much under normal use
Solution Approach 1:
The patent resolves this contradiction by precisely controlling the material parameters: modulus of elasticity (50-150 GPa) and yield strength (40×10^7 to 120×10^7 Pa). These parameter ranges ensure the side rails have sufficient resilience to deflect under impact without permanent deformation, while maintaining enough stiffness to prevent excessive deflection during normal operation
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 solution enables side rails to withstand greater impact forces without permanent deformation, reducing maintenance needs and the overall weight of the medical table, making it easier to move and use in various medical procedures.
Implementation Method 1
The elongated body is formed of a material having a modulus of elasticity that is about 50 gigapascals to about 150 gigapascals and a yield strength that is about 40×10^7 pascals to about 120×10^7 pascals
Implementation Method 2
The side rail is secured to the table using a force absorbing member that is configured to permit the side rail to deflect towards the table when energy of about 5 Joules to about 100 Joules is applied to the side rail and to absorb some of the energy applied to the side rail as the side rail deflects towards the table
Data Source
AI summary
This disclosure relates to resilient side rails for medical tables. In some aspects, a side rail for a medical table includes an elongated body having a height and a width that are configured to be received by a medical accessory, and the elongated body is formed of a material having a modulus of elasticity that is about 50 gigapascals to about 150 gigapascals and a yield strength that is about 40×107 pascals to about 120×107 pascals.