Patient Repositioning Timer with Visual Urgency Indication
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Solution Overview
Problem
Current solutions for reminding caregivers to reposition bedridden or sensory impaired patients are inadequate, leading to prolonged pressure on skin areas, which can result in Decubitus Ulcers (DUs). Existing methods lack reliability, ease of use, and consistency in alerting caregivers of the need for timely repositioning.
Innovation Solution
A battery-powered, electronically operated device with a 'clockface' display that visually indicates the time since the last patient repositioning. The device features color-coded sections (green, yellow, red) to signal when repositioning is due, and it can be reset manually or via voice activation, allowing for easy tracking and documentation of repositioning events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual time tracking methods (paper clocks, written records) are used to monitor patient repositioning intervals, then the device complexity is low, but the reliability of adherence to repositioning protocols deteriorates due to human error and lack of automation
Solution Approach 1:
The system enables self-service by automatically tracking time intervals and generating alerts without requiring manual intervention. The electronic device autonomously monitors the 2-hour repositioning intervals and notifies caregivers, eliminating the need for manual time tracking while ensuring protocol adherence.
Solution Approach 2:
The system implements feedback mechanisms through visual (color-coded clockface) and audible alerts that notify caregivers when repositioning is due. This continuous feedback loop ensures timely intervention and maintains reliable adherence to repositioning protocols by providing real-time status information.
2Reliability
If detailed time tracking and documentation systems are implemented to ensure accurate monitoring of repositioning events, then the reliability improves, but the ease of operation deteriorates due to increased manual tasks
Solution Approach 1:
The device performs self-service by automatically recording and tracking repositioning times without requiring caretakers to manually document events. The system autonomously manages time intervals and generates alerts, significantly reducing caretaker workload while maintaining accurate time tracking.
Solution Approach 2:
The system replaces manual mechanical documentation methods (paper clocks, written records) with an electronic automated system. This substitution eliminates the need for manual writing and calculation tasks while providing more reliable and accurate time tracking through electronic sensors and processors.
3Ease of operation
If simple reminder methods (paper clocks, personal notes) are used, then the ease of operation is high, but the reliability of alerting caregivers deteriorates due to lack of visual time lapse indication
Solution Approach 1:
The system employs color changes on the clockface display to indicate different time intervals and alert states. Visual cues such as color-coded zones provide intuitive and reliable information about when repositioning is due, enhancing alert effectiveness while maintaining ease of operation through simple visual interpretation.
Solution Approach 2:
The system adds a visual dimension to time tracking by displaying time lapse information graphically on the clockface rather than using only numerical or textual indicators. This dimensional enhancement improves reliability by providing intuitive visual cues that are easily perceived and understood by caregivers.
4Reliability
If automated electronic monitoring systems are deployed to ensure timely repositioning, then the reliability of protocol adherence improves, but the device complexity and cost increase
Solution Approach 1:
The system is segmented into distinct functional modules: a microcontroller unit for time tracking, a display module for visual indication, and an alert module for notifications. This segmentation allows the electronic system to achieve high reliability through specialized components while managing complexity through modular design and independent functionality.
Data Source
AI summary
A visual electrical, time management device incorporating a display which indicates the time lapse between resets, and alerts clinical staff to the relative urgency to act for a patient unable to act for his or her own self. The invention is used to improve awareness and compliance for repositioning protocol for clinical staff or caregivers that a patient should be turned, moved, or repositioned to avoid DUs associated with long periods of time in the same position in bed. The device measures the time elapsed since last reset indicating how long the patient has been in the current position. The device “face” provides an easy to identify and understand visual or audio cues to how much time has lapsed and how much time is left before the patient may experience injury. The caregiver resets the device easily by activating the face directly, by voice, or other electronic method.