Dialysate Collection Port Alignment Structure for Clean Connection
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Solution Overview
Problem
The existing dialysate extraction devices face issues with maintaining the cleanliness of the collection port during connection, as the connection member may come into contact with non-cleaned areas due to improper positioning or attitude, potentially leading to contamination.
Innovation Solution
The dialysate extraction device incorporates correction portions on the inner circumference of the outer circumference wall to align the connection member correctly before connection, along with a seal member for leak prevention and a guide/discharge path for fluid flow, ensuring the cleanliness of the collection port.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connection member is connected directly to the collection port without alignment features, then the connection process is simple, but the connection member may contact non-cleaned parts causing contamination
Solution Approach 1:
The correction portions are formed in advance on the inner circumference of the outer circumference wall part to preemptively correct the position and attitude of the connection member before its tip reaches the collection port. This preliminary alignment action prevents potential contamination by ensuring proper positioning before the connection is finalized.
Solution Approach 2:
The outer circumference wall part acts as an intermediary structure between the connection member and the collection port. It provides correction portions that guide and align the connection member, preventing direct contact between the connection member and non-cleaned parts while facilitating proper connection to the collection port.
2Reliability
If the connection member is inserted without position correction, then the insertion process is fast, but the position and attitude deviation causes contamination risk
Solution Approach 1:
The correction portions enable the connection member to self-correct its position and attitude during insertion. The tapered surfaces automatically guide the connection member into the correct alignment without requiring external intervention or complex control mechanisms, maintaining both speed and reliability.
3Ease of operation
If the collection port is exposed during connection, then the connection operation is easy, but contamination from non-cleaned parts occurs
Solution Approach 1:
The outer circumference wall part serves as a protective intermediary that shields the collection port from contamination during the connection operation. It provides a controlled environment for connection while maintaining accessibility, allowing easy connection operations without exposing the collection port to non-cleaned parts.
Data Source
AI summary
A dialysate extraction device comprising a dialysate extraction means including an inlet port and an outlet port adapted to be connected to a flow path of fluid for flowing the fluid therethrough and a projected collection port for collecting the fluid flowing through the inlet and outlet port; a outer circumference wall part mounted on the dialysate extraction means so that it covers a projected end of the collection port and is projected therefrom; a connection member formed with a connection portion to be connected to the collection port and a fitting portion to be fitted into an inner circumference of the outer circumference wall part and adapted to extract the fluid through the collection port under a condition in which the connection portion is connected to the outer circumference wall part; and correction portions formed on the inner circumference of the outer circumference wall part for correcting position and attitude of the connection member relative to the collection port before a tip end of the connection member reaches the projected end of the collection port during insertion of the connection member into the outer circumference wall part.