Patient Line Dislodgement Detection via Flow Restriction
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Solution Overview
Problem
Intravenous needles can become dislodged during patient movement, leading to potential bleeding and fluid delivery issues due to the lack of effective detection mechanisms in current clinical practices.
Innovation Solution
A patient line dislodgement detection device and method that restricts fluid flow through a tubing line when force is applied, using sensors to detect changes in flow or pressure before needle dislodgement occurs, thereby triggering a secondary mechanism to prevent blood loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a force is applied to the needle line during patient movement, then the needle may become dislodged, but current clinical practices lack effective detection mechanisms to prevent this
Solution Approach 1:
The device performs preliminary action by detecting force application to the tubing line before the needle actually dislodges. The force sensor monitors for pulling forces and triggers a warning or preventive action (such as activating a clamp) before the needle becomes dislodged, thereby preventing the harmful outcome while maintaining simple clinical practice.
Solution Approach 2:
The device introduces an intermediary detection system between the patient movement and the needle dislodgement event. The force sensor and control system act as intermediaries that detect early signs of potential dislodgement and trigger preventive measures, bridging the gap between simple monitoring and active protection without requiring complex surgical modifications.
2Measurement precision
If sensors are used to detect force application on the tubing line, then needle dislodgement can be detected earlier, but the device complexity increases
Solution Approach 1:
The device replaces complex mechanical detection systems with simpler electronic force sensors and control circuits. Instead of using elaborate mechanical linkages or pressure transducers, the invention employs straightforward force-sensing elements that convert mechanical force into electrical signals for processing, thereby achieving precise force detection with relatively simple device architecture.
Solution Approach 2:
The sensor system performs self-service by automatically detecting force application and triggering the appropriate response without requiring complex external monitoring equipment. The integrated force sensor and control system work together as a self-contained unit that monitors the tubing line and activates preventive measures autonomously, reducing the need for additional complex detection infrastructure.
3Object-affected harmful factors
If the device restricts fluid flow in response to applied force, then blood loss is prevented, but fluid delivery may be inappropriately interrupted
Solution Approach 1:
The device employs feedback control by continuously monitoring force application on the tubing line and adjusting the clamp activation accordingly. When a force threshold is detected indicating potential dislodgement, the system activates the clamp to restrict flow; when the force is removed or the situation is resolved, the clamp can be deactivated to restore normal fluid delivery. This feedback mechanism ensures that flow restriction occurs only when necessary, preventing both blood loss and inappropriate interruption.
Solution Approach 2:
The device applies preliminary anti-action by activating the flow-restricting clamp in advance of actual needle dislodgement. When force application is detected, the clamp is activated to prevent blood loss before the needle actually becomes dislodged. The system is designed to restore flow once the threat is eliminated, thereby providing protective action without permanent or inappropriate fluid delivery interruption.
Data Source
AI summary
A patient line dislodgement detection device and method. An example device includes a body having an entrance and an exit. The entrance and the exit are each configured to receive a tubing line therethrough. Applying a force to a tubing line causes the body to restrict fluid flow through the tubing line, thereby indicating a dislodgement condition. An example method includes receiving a tubing line through a dislodgement device. The method also includes restricting fluid flow by the dislodgment device through the tubing line in response to application of a force on the tubing line. The method also includes detecting a dislodgment condition based on restricting the fluid flow through the tubing line.