Balloon Catheter Liquid Control System for Gas Discharge
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Solution Overview
Problem
The preparation process for balloon catheter systems is complex, requiring multiple steps to discharge gas from the syringe and separate gas discharge from the liquid flow path, which can be burdensome for users.
Innovation Solution
A liquid control system that includes a syringe pump, a liquid flow member, a reservoir, and a liquid flow controller, which allows for efficient communication between the syringe, balloon catheter, and reservoir, simplifying the process of gas discharge and liquid management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gas is discharged from the syringe using conventional methods (switching valve and operating syringe), then gas can be removed from the liquid flow path, but the preparation process becomes complicated and burdensome for users
Solution Approach 1:
The patent combines the gas discharge function and liquid supply function into a single integrated operation. The syringe is configured to discharge gas to the reservoir while simultaneously preparing the liquid flow path, eliminating the need for separate valve switching operations. This merging of functions simplifies the preparation process while ensuring complete gas removal.
Solution Approach 2:
The reservoir serves as an intermediary component that receives discharged gas from the syringe during the preparation phase. By providing this intermediate storage location for gas, the system allows gas to be separated from the liquid flow path without requiring complex valve mechanisms, thus simplifying user operation while maintaining effective gas removal.
2Reliability
If gas discharge is performed separately from liquid flow path management, then gas can be removed, but the preparation process requires multiple separate operations
Solution Approach 1:
The patent merges gas discharge and liquid flow path management into a single integrated process. The syringe operation simultaneously achieves gas removal to the reservoir and prepares the liquid flow path for subsequent use, reducing the number of preparation steps while maintaining effective gas removal through the integrated design.
3Reliability
If separate gas discharge system is used (syringe communicated with liquid flow path via three-way stopper cock), then gas can be discharged from liquid flow path, but the preparation process becomes further complicated
Solution Approach 1:
The patent extracts the gas discharge function from the complex three-way valve system and integrates it directly into the syringe-reservoir configuration. By removing the intermediate three-way stopper cock and directly connecting the syringe to the reservoir for gas discharge, the system maintains effective gas removal capability while significantly simplifying the overall system configuration and preparation procedure.
Data Source
AI summary
A liquid control system supplies and discharges a liquid to and from a balloon. The liquid control system includes a syringe pump including a syringe, a liquid flow member coupling the syringe and the balloon catheter, a reservoir coupled to the syringe by the liquid flow member, and a liquid flow controller that controls flow of the liquid in the liquid flow member. The liquid flow member is connected to the syringe from above, and is connected to the reservoir from below. The liquid flow controller switches a first state in which communication between the syringe and the reservoir is blocked and communication between the syringe and the balloon catheter is allowed, and a second state in which the communication between the syringe and the balloon catheter is blocked and the communication between the syringe and the reservoir is allowed.