Gas Infusion Irrigation Control for Surgical Pressure Response
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Solution Overview
Problem
Existing methods for controlling irrigation pressure in surgical systems, such as phacoemulsification, are limited by the need for expensive metal tubes and slow pressurization/depressurization, which are inefficient and dependent on gravity-based systems.
Innovation Solution
A gas infusion system with dual ports for controlling irrigation pressure, allowing for quick and precise adjustment of fluid pressure using gas infusion, eliminating the need for metal tubes and enhancing the responsiveness of the system to surgical conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal tube is used to control head pressure in the irrigation bottle or bag, then pressure control is achieved, but the system becomes expensive and pressurization/depressurization is slow
Solution Approach 1:
The patent uses a gas infusion system where gas is introduced into the irrigation bottle or bag to create pressure control. This pneumatic approach replaces the mechanical metal tube system, enabling rapid pressurization and depressurization through controlled gas flow, thereby improving both response speed and system cost-effectiveness while maintaining reliable pressure control
2Reliability
If a metal tube is used to control head pressure, then pressure regulation is possible, but the system complexity and cost increase
Solution Approach 1:
The invention replaces the complex metal tube integration system with a simpler gas infusion mechanism. Gas is introduced through a port in the bottle or bag cap, utilizing the existing headspace air pocket to regulate pressure. This pneumatic approach simplifies the overall system architecture while maintaining effective pressure regulation capability
Solution Approach 2:
The patent utilizes the disposable irrigation bottle or bag itself as the pressure control medium. The air pocket within the disposable container serves as the pressure regulation mechanism, eliminating the need for expensive, reusable metal tube components. This approach reduces system complexity and cost while maintaining functionality
3Device complexity
If gravity-based irrigation system is used, then simple pressure control is achieved, but the available pressure is limited by ceiling height
Solution Approach 1:
The patent combines the simple gravity-based irrigation system with a pneumatic gas infusion system. Gas is introduced into the irrigation bottle or bag to create additional pressure on the fluid, enabling pressure control independent of ceiling height. This hybrid approach maintains system simplicity while overcoming the pressure limitations of pure gravity-based systems
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
Enables rapid and refined control of irrigation pressure, improving surgical outcomes by providing a closed-loop dynamic irrigation system that adapts to surgical factors in real-time.
Implementation Method 1
modifying a pressure above the irrigation fluid in a fluid reservoir to increase the flow rate through a surgical pack by iteratively controlling infusion of gas to the fluid reservoir
Data Source
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AI summary
An apparatus, system and method of controlling the flow rate of an irrigation fluid. The apparatus, system and method include modifying a pressure gravitationally above the irrigation fluid in a fluid reservoir to increase the flow rate through a surgical pack by iteratively controlling infusion of gas to the fluid reservoir. The iteratively controlling comprises sensing an in-range response to said modifying, wherein the infusion of gas is enabled; and sensing an out-of-range response to said modifying. If, based on prior ones of said modifying: the out-of-range response poses no danger to a patient, the infusion of gas is enabled; the out-of-range response poses a substantial danger to the patient, the infusion of gas is disabled; or the out-of-range response poses no substantial danger to the patient, the iteratively controlling comprises applying a successive series of modifications to correct the out-of-range response.