Multi-Syringe Gas Delivery System for Controlling CO2 Purity
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Solution Overview
Problem
Conventional medical gas delivery systems are cumbersome, expensive, and prone to malfunctions, posing risks in medical settings, and existing methods for delivering CO2 or contrast media to patients are not foolproof, risking air contamination and CO2 flooding.
Innovation Solution
A portable system using a compressed gas unit with a solenoid and multi-part valve delivery system that sequentially processes CO2 through a series of syringes, preventing direct connection to the patient and minimizing air intrusion, ensuring controlled and safe delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional large storage tanks and regulators are used for gas delivery, then sufficient gas storage capacity is achieved, but the system becomes cumbersome, expensive, and prone to malfunctions
Solution Approach 1:
The system divides the gas delivery into multiple stages using a sequence of syringes (first syringe, second syringe, third syringe) instead of a single large storage tank. Each syringe holds a portion of the total gas volume, and they are connected in series through a multi-part valve assembly, allowing the gas to be delivered step-by-step through controlled valve openings and closings
Solution Approach 2:
The patent introduces multiple intermediate components between the gas source and the patient: a multi-part valve delivery system with a first valve, second valve, and third valve that sequentially control gas flow through multiple syringes. These intermediaries prevent direct connection between the gas source and patient, adding safety layers while managing the gas delivery process
2Speed
If direct connection between gas source and patient is used, then delivery speed is maximized, but air contamination and CO2 flooding risks increase
Solution Approach 1:
The gas delivery path is segmented into multiple stages through a sequence of syringes and valves. The gas must pass through the first syringe, then the second syringe, then the third syringe in sequence, with each stage controlled by a valve. This segmentation prevents direct connection between the gas source and patient, eliminating the risk of air contamination and CO2 flooding while maintaining controlled delivery speed
Solution Approach 2:
The system performs preliminary actions by pre-filling multiple syringes with gas before delivery begins. The first syringe, second syringe, and third syringe are each filled with gas in advance, and the valves are positioned to control the sequential release. This preliminary preparation ensures that gas is always available for immediate delivery while maintaining safety through the multi-stage controlled release mechanism
3Reliability
If multiple syringes are used in sequence, then air contamination is minimized, but device complexity increases
Solution Approach 1:
The patent combines multiple syringes (first, second, and third syringes) and multiple valves (first, second, and third valves) into a single integrated multi-part valve delivery system. The valves are mounted on a common body and work together to control gas flow through the sequence of syringes, reducing the number of separate components and connections needed while maintaining the air contamination prevention benefits
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 provides a safe, reliable, and controlled delivery of CO2 or other medical fluids, reducing the risk of air contamination and CO2 flooding, while being compact and user-friendly for medical procedures.
Implementation Method 1
A portable system using a compressed gas unit with a solenoid and multi-part valve delivery system that sequentially processes CO2 through a series of syringes
Data Source
AI summary
A method for performing a medical procedure requiring effective, reliable and foolproof delivery of controlled amounts of a medical grade gas to a patient includes providing a compressed gas cylinder having a weight with medical grade gas sealed therein of at least twelve grams and not greater than fifty grams. The method also includes connecting the compressed gas cylinder to an integrated compressed gas unit including a regulator valve assembly positioned between an outlet port and an inlet port, wherein the regulator valve assembly includes a press button actuator and regulator adjustment dial. A flow control system is secured to the compressed gas unit and the medical grade gas is delivered in precisely controlled amounts by actuating the compressed gas unit and operating the flow control system to deliver the medical grade gas to vasculature of the patient.