Surgical Pump Pressure Control Algorithm
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Solution Overview
Problem
Current fluid management pump systems in surgical procedures face challenges in maintaining consistent pressure and flow rates during endoscopic and arthroscopic surgeries, particularly when using unidentified or third-party surgical devices, which can lead to suboptimal surgical site conditions and potential tissue damage.
Innovation Solution
The pump control processor calculates pressure loss coefficients using identified hardware dimensions and algorithms to maintain constant desired pressure and flow rates, and dynamically adjusts pump head pressure through a boost algorithm to accommodate varying surgical instruments, ensuring optimal fluid management and minimizing tissue damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the pump uses a pressure sensor to monitor fluid pressure and automatically regulate pump operation, then the precision of pressure control is improved, but the complexity of the control system increases
Solution Approach 1:
The system employs a pressure sensor that continuously monitors fluid pressure at the surgical site and feeds this information back to the control unit. The control unit automatically adjusts pump operation based on this feedback signal, maintaining precise pressure control without requiring complex manual intervention. This closed-loop feedback mechanism resolves the contradiction by achieving high measurement precision through automated regulation.
2Reliability
If the pump system includes components such as pressure sensor, control unit, and valve to automatically regulate fluid pressure and flow, then the reliability of fluid management is improved, but the number of components and system complexity increase
Solution Approach 1:
The patent integrates multiple control functions into a unified system where the control unit coordinates the pressure sensor, pump operation, and valve control as a single integrated mechanism. This merging of components achieves reliable fluid management through automated pressure and flow regulation while minimizing the number of separate components needed compared to traditional manual control systems.
3Adaptability or versatility
If the pump dynamically adjusts head pressure using a boost algorithm to accommodate varying surgical instruments, then the adaptability to different surgical devices is improved, but the complexity of the control algorithm increases
Solution Approach 1:
The system implements a dynamic boost algorithm that automatically adjusts pump head pressure in real-time based on the specific surgical instrument being used and current surgical site conditions. The control unit modifies pump operation parameters dynamically without requiring complex manual configuration, achieving high adaptability to different surgical devices through automated algorithmic control.
Data Source
AI summary
A pump with a controller for adjusting head pressure using a pressure boost is provided. The pressure boost may be dynamically adjusted during a surgical procedure based on the device being used and inflow and/or outflow settings.