Consumable Part Usage Tracking for Medical Injector Safety
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Solution Overview
Problem
In medical facilities, it is challenging to accurately control and replace consumable parts such as chemical solution syringes and secondary batteries used in imaging diagnostic apparatuses, leading to potential breakage or unnecessary replacement due to unclear usage limits.
Innovation Solution
A mechanical system with a consumable part that includes a consumption storage means for tracking usage data, allowing for automatic detection and notification of replacement needs, featuring a part using means, data reading, consumption holding, detecting, determining, and alarm notifying components to manage the consumable part's usage effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a cylinder adapter is used to hold the chemical solution syringe on the chemical solution injector, then the piston member can be pressed into the cylinder member at high pressure, but the cylinder adapter cannot be formed as a permanently usable part and must be replaced after a predetermined number of uses
Solution Approach 1:
The cylinder adapter is designed as a consumable part made from materials like polycarbonate or polyamide 12 with a predetermined thickness that can withstand high pressure during use but is intended to be replaced after a certain number of uses. This disposable approach ensures safety by preventing use beyond consumption limits while keeping the adapter design simple and cost-effective.
2Reliability
If cylinder adapters are replaced once in a predetermined time period, then the risk of using broken adapters is reduced, but cylinder adapters that can still be used may be replaced unnecessarily
Solution Approach 1:
The system incorporates a consumption storage means (such as an RFID chip) on the cylinder adapter that stores consumption degree data. A data reading means in the chemical solution injector reads this data to determine the actual usage level of the adapter. This feedback mechanism allows the system to notify users when the consumption degree reaches a reference level, enabling replacement only when necessary and preventing both premature replacement and use beyond limits.
3Device complexity
If the consumption degree of the cylinder adapter is not monitored, then the system remains simple, but the adapter may be used beyond its consumption limit leading to breakage
Solution Approach 1:
The cylinder adapter is equipped with a consumption storage means that automatically stores and manages its own consumption degree data. When the adapter is mounted on the chemical solution injector, the data reading means automatically reads and updates this data without requiring manual tracking or complex external monitoring systems. This self-service approach maintains relative system simplicity while ensuring reliable usage control through automated data management.
Data Source
AI summary
When consumable part such as pressure-resistant cover (300) is installed on a chemical solution injector (100), consumption degree data is read from storage means such as an RFID chip of the consumable part and temporarily held. If the consumption degree updated according to the use of the consumable part exceeds the consumption criteria, a replacement preliminary warning is outputted and the updated consumption degree data is written in the consumption storage means (310) of the consumable part. Since the consumption degree of a consumable part installed on a mechanical device is automatically detected and a replacement preliminary warning is issue to the user at an adequate timing, continuous use of a totally consumed part, unnecessary replacement of a non-totally consumed part is prevented.