Surgical Fluid Management System Pressure Flow Control
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Solution Overview
Problem
Current surgical fluid management systems lack the ability to efficiently control fluid pressure and flow rate during surgical procedures, leading to potential complications such as hypothermia and fluid deficits, which can result in adverse patient outcomes and increased medical costs.
Innovation Solution
A surgical fluid management system that includes a pump and control system capable of operating in pressure control and flow control modes, featuring a heater assembly for fluid warming and a touch screen interface for user selection, along with sensors for monitoring pressure and flow rate, and a method for calculating fluid deficits to ensure precise fluid delivery and monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a pump is used to deliver fluid during surgical procedures, then fluid delivery is enabled, but precise control of fluid pressure and flow rate cannot be achieved
Solution Approach 1:
The system dynamically switches between pressure control mode and flow control mode based on surgical needs. The pump operation is dynamically adjusted by the control system to maintain either target pressure or target flow rate, providing adaptive control rather than static operation.
Solution Approach 2:
Pressure sensors and flow sensors provide continuous feedback to the control system. The control system compares actual pressure/flow readings with target values and adjusts pump operation accordingly, enabling precise control through closed-loop feedback mechanisms.
2Reliability
If fluid is delivered during surgical procedures, then surgical irrigation and distention are enabled, but hypothermia and fluid deficits occur leading to adverse patient outcomes
Solution Approach 1:
The heater assembly pre-heats the fluid before it reaches the patient during irrigation and distention. This preliminary heating action prevents the fluid from causing hypothermia when it contacts the patient's body tissues.
Solution Approach 2:
Temperature sensors monitor fluid temperature and provide feedback to the control system. The heater assembly is controlled to maintain fluid temperature within a safe range, preventing hypothermia through continuous temperature monitoring and adjustment.
3Productivity
If fluid management is performed during surgical procedures, then irrigation and suction functions are enabled, but fluid deficits and increased medical costs result
Solution Approach 1:
Flow sensors and pressure sensors provide continuous feedback on fluid delivery and return. The control system monitors these parameters to calculate fluid deficits and adjust pump operation to maintain appropriate fluid balance during the surgical procedure.
Solution Approach 2:
The system integrates multiple functions including irrigation, suction, distention, and fluid warming into a single unified platform. This multi-functionality enables comprehensive fluid management while reducing the need for multiple separate devices and procedures.
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 enables precise control of fluid pressure and flow rate, preventing hypothermia and fluid deficits, thereby improving surgical outcomes and reducing medical costs by ensuring efficient fluid management during procedures.
Implementation Method 1
Some example embodiments may include infrared lamps arranged to warm fluid flowing through a disposable cartridge.
Implementation Method 2
a heater assembly for fluid warming
Data Source
AI summary
Fluid management system and method of operating a fluid management system which may provide one or more functions associated with suction, irrigation, distention, deficit monitoring, infusion, fluid warming, and the like. The fluid management system may be selectable between pressure control and flow control modes.