Medical Device Label Timer for Infection Prevention
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Solution Overview
Problem
Hospital-acquired infections (HAIs) frequently occur due to prolonged use of indwelling medical devices, such as intravenous cannulae and urethral catheters, which act as conduits for bacterial infections, highlighting the need for effective monitoring to reduce infection risks.
Innovation Solution
A medical device label with a timer and signaling apparatus that alerts healthcare professionals when a predetermined safe usage period has expired, allowing for timely removal or replacement of the device, thereby reducing infection risk. The label is designed to be affixed to patient medical records rather than the device itself, ensuring accessibility and minimizing interference with medical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a timer and signaling apparatus are integrated into a medical device label to monitor usage time, then the reliability of preventing HAIs is improved, but the device complexity increases
Solution Approach 1:
The patent combines the timer, signaling apparatus, and label into a single integrated monitoring system. The timer circuit is printed directly on the label substrate along with the signaling elements (LEDs, buzzers), creating a unified device that monitors indwelling catheter usage time and provides alerts when removal is due. This merging approach maintains reliability while managing complexity through integration rather than separate components.
Solution Approach 2:
The monitoring label serves multiple functions: it acts as a patient identifier, a usage time timer, an alert system with visual and audible signals, and a medical record attachment. By making the label multi-functional, the patent reduces the need for separate monitoring devices, thereby improving reliability without proportionally increasing complexity.
2Ease of operation
If the label is affixed to patient medical records rather than the device itself, then the ease of operation is improved, but the reliability of time monitoring may worsen
Solution Approach 1:
The label is pre-programmed with the indwelling catheter removal time before patient admission or device insertion. The timer is pre-set and begins counting down immediately upon activation, eliminating the need for manual time entry or calculation. This preliminary action ensures accurate monitoring while allowing the label to be conveniently attached to medical records.
Solution Approach 2:
The label provides continuous feedback through visual (LED indicators showing remaining time) and audible (beep alerts when time expires) signals. This feedback mechanism ensures that even when the label is detached from the device and attached to records, the monitoring remains reliable and staff are promptly notified when removal is due.
3Ease of manufacture
If the label components are distributed with the fixing portion at one end and electronic components at the other, then the ease of manufacture is improved, but the device complexity increases
Solution Approach 1:
The label is divided into distinct functional zones: an electronic components portion containing the timer circuit and signaling elements, and a fixing portion with adhesive for attaching to medical records. This segmentation allows each zone to be manufactured and tested independently, then assembled together, simplifying the manufacturing process while maintaining a clear structural organization that manages complexity.
Data Source
Figure 1a~1b
Figure 2
Figure 3~4
AI summary
A medical device label includes a timer to monitor a predetermined time period relating to a medical device, such as an indwelling cannula. The label includes a signalling apparatus that provides an alert signal on expiry of the predetermined time period and a fixing portion to fix the label to medical records of a patient. The label can have a first portion and a second portion, the first portion being separable from the second portion. The fixing portion can be provided in the second portion and all or part of the signalling apparatus provided in the first portion. Also disclosed is a monitoring system for a medical device, including a base station and a medical device label receivable by the base station. The monitoring system monitors a predetermined time period relating to a medical device based on receipt of the medical device label by the base station.