Hemodialysis Interface Device for Simultaneous Catheter Connection
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Solution Overview
Problem
The current hemodialysis process involves repetitive manual operations that increase the risk of contamination of the patient's circulatory system due to the need for frequent connection and disconnection of venous and arterial catheters, which can lead to handling errors and inefficiencies.
Innovation Solution
An interface device that selectively allows or prohibits the passage of blood between hemodialysis machine ports and venous and arterial tubes, enabling simultaneous connection or isolation of both tubes to the machine, reducing the need for manual port handling and minimizing contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual connection and disconnection of venous and arterial catheters is performed repeatedly, then the hemodialysis treatment can be implemented, but the risk of contamination of the patient's circulatory system increases
Solution Approach 1:
The patent combines the venous and arterial catheter connections into a single integrated interface device. The interface device includes a venous port for connecting to the venous catheter and an arterial port for connecting to the arterial catheter, both of which connect to the hemodialysis machine simultaneously through a single connection action. This merging eliminates the need for separate manual connections and disconnections, thereby reducing contamination risk while maintaining ease of operation.
Solution Approach 2:
The interface device serves as an intermediary component between the catheters and the hemodialysis machine. It includes internal fluid pathways that connect the venous port and arterial port to the machine's fluid ports. This intermediary structure allows simultaneous connection of both catheters through a single interface, reducing the number of manual operations required and minimizing contamination risk to the patient's circulatory system.
2Productivity
If separate connection procedures for venous and arterial catheters are used, then each tube can be connected independently, but the time required for hemodialysis setup increases
Solution Approach 1:
The interface device merges the connection functions for both venous and arterial catheters into a single integrated structure. The device includes a venous port and an arterial port that both connect to the hemodialysis machine simultaneously through internal fluid pathways. This merging allows both catheters to be connected in a single operation, significantly reducing setup time while the modular port design keeps the interface structure manageable and not overly complex.
3Reliability
If manual port handling is required for each connection, then flexibility in connection is maintained, but handling errors increase
Solution Approach 1:
The interface device acts as an intermediary that standardizes the connection process. It includes pre-configured internal fluid pathways that guide the connection between the catheters and the hemodialysis machine. The venous port and arterial port are both integrated into this intermediary device, which enforces a standardized connection procedure. This reduces handling errors by eliminating ambiguous manual port matching while maintaining sufficient flexibility for proper connection.
Data Source
AI summary
An interface device between a hemodialysis machine and venous and arterial tubes includes: a first port adapted to be connected to an output port of the hemodialysis machine and a venous port to inject blood into the venous tube. The interface device includes a second port adapted to be connected to an input port of the hemodialysis machine and an arterial port for receiving blood from the patient from the arterial tube. The interface device is further adapted to selectively allow or prohibit the passage of blood between the first and second ports and the venous and arterial ports respectively.