Chest Drainage System Pressure Sensor Blockage Clearance
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Solution Overview
Problem
Current chest drainage systems lack effective methods for automatically clearing blockages and detecting air leaks, which can lead to inefficient fluid removal and prolonged patient recovery times.
Innovation Solution
A chest drainage system with a pressure accumulator and sensor system that detects pressure differentials to automatically clear blockages and monitor air leaks by analyzing pressure trends over time, using a ratio of respiratory cycles with leaks to total cycles to determine the percentage of time with air leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual blockage clearing methods are used, then blockages can be removed, but the process is time-consuming and requires frequent attendant intervention
Solution Approach 1:
The system automatically detects blockages using pressure sensors and initiates clearing operations without requiring attendant intervention. The microprocessor monitors pressure differentials across the collection chamber and autonomously activates the clearing mechanism when blockages are detected, enabling the system to service itself.
Solution Approach 2:
The patent replaces manual mechanical clearing methods with an automated system using pressure sensors, microprocessors, and controlled mechanical actuators. The system uses pressure differentials detected by sensors to trigger automated clearing operations, substituting human intervention with electronic control and automated mechanical action.
2Reliability
If no air leak detection system is implemented, then the device remains simple, but air leaks cannot be objectively monitored
Solution Approach 1:
The system uses pressure sensors to continuously monitor pressure differentials and provides feedback to a microprocessor that analyzes the data to detect air leaks. The system processes pressure readings over time, compares them against thresholds, and generates objective air leak status indicators, creating a closed-loop feedback system for reliable detection.
Solution Approach 2:
The pressure sensor system serves multiple functions: it detects blockages, monitors air leaks, and tracks fluid collection levels. The same sensor infrastructure supports various monitoring objectives, reducing the need for separate dedicated sensors for each function and managing complexity through multi-purpose components.
3Ease of operation
If frequent manual intervention is required for blockage clearing, then system simplicity is maintained, but productivity decreases
Solution Approach 1:
The patent replaces manual mechanical clearing operations with an automated system using pressure sensors, microprocessors, and controlled mechanical actuators. The system uses pressure differentials detected by sensors to trigger automated clearing operations, substituting human intervention with electronic control and automated mechanical action.
Solution Approach 2:
The system automatically detects blockages using pressure sensors and initiates clearing operations without requiring attendant intervention. The microprocessor monitors pressure differentials across the collection chamber and autonomously activates the clearing mechanism when blockages are detected, enabling the system to service itself.
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 efficiently clears blockages and provides objective air leak monitoring, reducing patient recovery time and improving clinical decision-making with accurate data on air leak prevalence.
Implementation Method 1
A sensor, such as a pressure sensor, can be used to detect the pressure differential
Implementation Method 2
introducing sub-atmospheric pressure to the distal portion of the fluid pathway from an accumulator of a pressure source
Data Source
AI summary
A chest drainage system including a collection device configured to receive fluid from the pleural cavity of a patient. A sensor is included to detect a pressure differential in the fluid. A display is configured to display a trend in occurrences of changes in pressure of the fluid over time in predetermined time increments based on a number of detections of pressure differentials that exceed a predetermined pressure differential during each of the predetermined time increments. The trend is correlative to the percentage of time that the patient is deemed to have an air leak in the pleural cavity in the predetermined time increments. The trend is derived from a ratio of the quantity of respiratory cycles of the patient for which the predetermined pressure differential is detected (QRCleak) in the predetermined time increments to the total quantity of respiratory cycles of the patient in respective predetermined time increments (QRCtotal).