Radiation Scatter Protection System for X-ray Tables
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Solution Overview
Problem
Traditional radiation shielding garments for medical staff are heavy and ineffective against scattered radiation, which poses a significant hazard due to the reradiation of x-rays by lower atomic number heavy metals used in lighter alternatives.
Innovation Solution
A radiation scatter protection system comprising a plastic arm board, arm board shielding, sandbag shield, side curtain shield, and throw shield designed to attach to an X-ray table, utilizing PETG material and lead-impregnated rubber shielding to minimize exposure to both medical staff and patients by addressing scattered radiation directly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional lead shielding garments are used, then radiation protection is effective, but the garment weight becomes excessive causing injury to wearers
Solution Approach 1:
The shielding system is divided into multiple separate components including overhead shields, side shields, and portable shields that can be positioned independently around the patient rather than requiring a single heavy garment on the worker
Solution Approach 2:
The patent introduces fixed overhead shields and positioning devices as intermediary structures between the x-ray source and the worker, eliminating the need for the worker to wear heavy protective clothing while maintaining radiation protection
2Weight of moving object
If lighter weight materials with lower atomic number are used, then garment weight is reduced, but reradiation of x-rays occurs increasing exposure to the wearer
Solution Approach 1:
The patent removes the shielding material from the worker's body and extracts it into fixed overhead structures and positioning devices, eliminating the harmful reradiation effect that occurs when lightweight materials are worn close to the body
Solution Approach 2:
Fixed overhead shields and positioning devices serve as intermediaries that provide radiation protection without being worn on the body, thereby avoiding the reradiation problem associated with lightweight materials in close proximity to the worker
3Reliability
If shielding is placed close to the patient to block scattered radiation, then radiation protection is improved, but interference with medical procedures increases
Solution Approach 1:
The shielding components are designed to be movable and adjustable, allowing medical personnel to reposition shields as needed during procedures while maintaining radiation protection when positioned close to the patient
Solution Approach 2:
The patent provides shielding only in specific locations where scattered radiation is most hazardous, rather than completely surrounding the patient, thereby maintaining procedural accessibility while providing targeted radiation protection
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 system effectively reduces radiation exposure for medical staff and patients by blocking scattered radiation, reducing the need for heavy lead garments and minimizing reradiation risks, while allowing medical procedures to continue without interference.
Implementation Method 1
lead-impregnated rubber shielding to minimize exposure to both medical staff and patients by addressing scattered radiation directly
Implementation Method 2
utilizing PETG material and lead-impregnated rubber shielding to minimize exposure
Data Source
AI summary
A radiation scatter protection system designed to attach to an X-ray table to limit exposure to radiation for both medical staff and patient. The radiation scatter protection system includes an arm board adapted to be disposed around an arm of the patient; an arm board shielding including one large sheet of shielding extending downward from the X-ray table and a plurality of additional sheets of shielding, removably mounted to the arm board; a sand bag shield including a plurality of sheets of top shielding and a plurality of sheets of bottom shielding which connect to an elongated, cylindrical sandbag; a side curtain shield hanging from the X-ray table; and a throw shield.