Multi-Path Injection Pump Control Using Ablation Temperature Feedback
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Solution Overview
Problem
Manual control of physiological saline perfusion during radio frequency ablation leads to operation delays and errors, affecting the timeliness and accuracy of the process.
Innovation Solution
A multi-path perfusion control method and apparatus for injection pumps that utilize real-time temperature acquisition and intelligent channel management to adjust perfusion based on temperature changes during ablation tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual control of physiological saline perfusion is used, then the operation can be performed with simple equipment, but operation delays and errors occur, reducing timeliness and accuracy
Solution Approach 1:
The patent implements a feedback control mechanism where temperature sensors continuously monitor the ablation site temperature, and the injection pump automatically adjusts perfusion flow rate based on real-time temperature changes. This closed-loop feedback system eliminates manual intervention delays and improves both accuracy and timeliness of perfusion control.
Solution Approach 2:
The injection pump system performs self-regulation by automatically detecting temperature changes and adjusting its own perfusion output without external manual control. The system serves itself by using temperature feedback to autonomously optimize perfusion flow rate, eliminating human operation delays.
2Productivity
If manual determination of perfusion volume is used, then the device structure remains simple, but the timeliness and accuracy of liquid perfusion deteriorate
Solution Approach 1:
Temperature sensors provide continuous real-time feedback on ablation site temperature to the injection pump controller. This feedback loop enables automatic adjustment of perfusion flow rate in response to temperature changes, significantly improving response speed while the integrated control architecture manages system complexity.
Solution Approach 2:
The patent replaces manual mechanical control with an automated electromechanical control system. The injection pump uses electronic control based on temperature sensor signals to regulate perfusion flow, substituting human manual operation with automated electronic control mechanisms that respond instantaneously to temperature changes.
3Adaptability or versatility
If single-path perfusion control is used, then the device structure is simple, but the ability to respond to real-time temperature changes at multiple positions is limited
Solution Approach 1:
The patent divides the perfusion system into multiple independent paths, with each path capable of being controlled separately based on temperature changes at different ablation positions. This segmentation allows simultaneous or differential perfusion control at multiple locations, enhancing adaptability while maintaining manageable complexity through modular architecture.
Solution Approach 2:
The system transitions from single-path to multi-path perfusion control, adding the dimension of parallel independent control channels. This dimensional expansion enables simultaneous response to temperature changes at multiple positions, improving versatility through the addition of parallel perfusion pathways.
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
Reduces operation delays and errors by dynamically adjusting perfusion volume based on real-time temperature changes, improving the timeliness, accuracy, and safety of the ablation process.
Implementation Method 1
acquiring temperatures of a plurality of positions of an ablation object in real time by a plurality of temperature acquisition apparatuses
Implementation Method 2
controlling the injection pump to open or close some or all of the perfusion channels and/or controlling the injection pump to adjust flow rates of some or all of the perfusion channels according to a real-time change in the temperatures
Implementation Method 3
apply alternating high-frequency currents with a frequency less than 30 MHz (megahertz) to make ions in tumor tissues oscillate at high speed, rub each other, and convert radio frequency energy into heat energy
Implementation Method 4
The principle of the radio frequency ablation is to apply alternating high-frequency currents with a frequency less than 30 MHz (megahertz) to make ions in tumor tissues oscillate at high speed, rub each other, and convert radio frequency energy into heat energy
Data Source
AI summary
A multi-path perfusion control method and apparatus for injection pump, an injection pump and a storage medium, wherein the method includes: controlling the injection pump to open at least one perfusion channel when an ablation task is triggered, so as to execute a perfusion operation through an opened perfusion channel according to a preset initial flow rate; acquiring temperatures of a plurality of positions of an ablation object in real time by a plurality of temperature acquisition apparatuses; and controlling the injection pump to open or close some or all of the perfusion channels and/or adjust flow rates of some or all of the perfusion channels according to a real-time change in the temperatures of the plurality of positions. Operation delay or operation errors caused by manual determination can be reduced, and the timeliness, accuracy and pertinence of liquid perfusion during executing the ablation task can also be improved.