Surgical Smoke Evacuation Sensing for Real-Time Flow Control
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Solution Overview
Problem
Current surgical evacuation systems lack efficient monitoring and control mechanisms to optimize smoke evacuation during surgical procedures, leading to potential health risks and operational inefficiencies.
Innovation Solution
A surgical evacuation system comprising a housing with a display, a pump, a motor, a flow path, and a sensor system that includes internal and external sensors to monitor fluid parameters, with a control circuit to analyze these parameters and adjust the flowrate and display efficiency levels, providing real-time alerts and adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If surgical evacuation systems operate without real-time monitoring, then the system structure remains simple, but evacuation efficiency cannot be optimized and health risks increase
Solution Approach 1:
The patent implements real-time feedback loops where sensors continuously monitor smoke evacuation parameters (particle concentration, airflow) and feed this data back to the control circuit. The control circuit adjusts pump motor speed dynamically based on this feedback to optimize evacuation efficiency while maintaining safe smoke levels in the surgical environment.
Solution Approach 2:
The system performs self-adjustment through automated control algorithms that monitor sensor data and independently modify pump operation without requiring manual intervention. The control circuit automatically optimizes evacuation performance based on real-time conditions, reducing the need for operator expertise and manual adjustments.
2Measurement precision
If multiple sensors are added to monitor fluid parameters, then measurement precision improves, but device complexity increases
Solution Approach 1:
The patent employs sensors that perform multiple monitoring functions simultaneously - detecting smoke particle concentration, airflow rate, and other fluid parameters with a single integrated sensing approach. This multi-functionality reduces the total number of separate sensing components needed while maintaining comprehensive monitoring capability.
Solution Approach 2:
The internal sensor positioned along the flow path combines multiple measurement capabilities into a single sensing location, integrating particle detection and flow monitoring functions. This merging of functions at a single point reduces spatial complexity and simplifies the overall sensor system architecture.
3Object-affected harmful factors
If real-time monitoring and control are implemented, then air quality improves and health risks reduce, but energy consumption increases
Solution Approach 1:
The patent implements dynamic motor speed control where the pump motor operates at variable speeds rather than constant high speed. The control circuit adjusts motor RPM in real-time based on smoke generation rates and evacuation needs, consuming energy only when necessary to maintain safe air quality levels.
Solution Approach 2:
The system employs periodic monitoring and adjustment cycles where sensors sample smoke levels at intervals and the control circuit modifies pump operation accordingly. This periodic control approach maintains effective smoke evacuation while allowing energy consumption to fluctuate with actual surgical needs rather than running continuously at maximum capacity.
Data Source
AI summary
Surgical systems can include evacuation systems for evacuating smoke, fluid, and/or particulates from a surgical site. A surgical evacuation system can be intelligent and may include one or more sensors for detecting one or more properties of the surgical system, evacuation system, surgical procedure, surgical site, and/or patient tissue, for example.