Surgical Unit Airflow Control with Downstream Particle Sensor
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Solution Overview
Problem
Current surgical operation units lack efficient control and monitoring of air flow and quality, which can lead to suboptimal sterile conditions and potential infections during operations.
Innovation Solution
Incorporation of a particle detection sensor and an air flow velocity sensor downstream from the air outlet, connected to a control unit that processes sensor signals to ensure a continuous stream of high-quality clean air and monitors the proper functioning of the unit, maintaining accurate air flow and cleanliness measurements in the operating area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a particle detection sensor and control unit are added to monitor and control air flow quality, then air quality control and sterile condition maintenance are improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback control system where a particle detection sensor continuously monitors air quality in the clean air area and sends signals to a control unit. The control unit processes these signals and adjusts the air flow unit accordingly to maintain sterile conditions, resolving the contradiction by using feedback to improve reliability while managing complexity through automated control
Solution Approach 2:
The system performs self-monitoring and self-regulation through the integrated sensor and control unit that automatically maintains air quality without external intervention, allowing the device to manage its own complexity while ensuring reliable sterile conditions during surgical operations
2Measurement precision
If sensors are positioned close to the clean air area for accurate measurement, then measurement precision is improved, but the operating space becomes more constrained
Solution Approach 1:
The patent positions sensors at specific locations within the clean air area where air flow characteristics are most relevant for surgical operations. By strategically placing the particle detection sensor and air flow sensor in the clean air area rather than throughout the entire space, the system achieves accurate measurements while preserving maximum operating space for surgical activities
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
This solution ensures a consistently controlled and high-quality air flow, maintaining sterile conditions and preventing infections by accurately monitoring and adjusting air flow parameters, thus enhancing the efficiency and safety of surgical operations.
Implementation Method 1
a particle detection sensor positioned downstream from the at least one air outlet opening
Implementation Method 2
The operation unit comprises an air flow velocity sensor. The control unit receives air flow velocity values and determines if a correct and steady air flow is directed onto the clean air area
Implementation Method 3
the air flow unit being provided with a filter unit for filtering air entering the air flow unit during operation
Data Source
AI summary
Surgical operation unit with a front side (2) and an air flow unit (40). A filter unit (60a, 60b) is present for filtering air entering the air flow unit (40) during operation, and the front side (2) has at least one opening (16) and a cover (22), covering at least part of the opening (16). The air flow unit (40) has at least one air outlet opening (48) for directing an air flow (F) from the air flow unit (40) over the cover (22) into a clean air area (O; I). An air flow parameter sensor (11; 12) is positioned downstream from the at least one air outlet opening (48), and a control unit (15) is connected to the air flow parameter sensor (11; 12) and arranged to process a sensor signal received from the air flow parameter sensor (11; 12).