Dialysate Extraction Device with Alignment Correction
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Solution Overview
Problem
Existing dialysate extraction devices risk contamination and compromised cleanliness due to improper connection of the connection member with the collection port, leading to potential contact with non-cleaned surfaces.
Innovation Solution
A dialysate extraction device with correction portions on the inner circumference of the outer circumference wall to align the connection member's position and attitude before connection, ensuring the connection member fits correctly and preventing contamination, along with a seal member for leak prevention and a guide/discharge path for fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the connection member is directly connected to the collection port, then the connection is simple and quick, but the connection member may contact non-cleaned parts causing contamination
Solution Approach 1:
An outer circumference wall part is introduced as an intermediary component between the collection port and the connection member. This wall part extends from the collection port and provides a clean intermediate surface that the connection member contacts during connection, preventing direct contact with non-cleaned parts of the collection port assembly and thus eliminating contamination risk while maintaining connection simplicity
Solution Approach 2:
The outer circumference wall part is pre-prepared and positioned before the connection member is attached. By having this clean, pre-disinfected surface in place beforehand, the connection member is guided to contact only the cleaned portion during the connection process, preventing contamination without requiring complex connection procedures
2Object-affected harmful factors
If the collection port is extensively cleaned and disinfected, then the cleanliness is improved, but the structure and process become more complex
Solution Approach 1:
The collection port assembly is segmented into distinct functional parts: the collection port itself, the outer circumference wall part, and the connection member. This segmentation allows the outer circumference wall part to be specifically designated as the clean interface surface, concentrating disinfection efforts on this single component rather than requiring extensive cleaning of the entire assembly, thus maintaining high cleanliness without excessive structural complexity
3Ease of operation
If the connection member is allowed to move freely during connection, then the ease of connection is improved, but position and attitude deviation occurs
Solution Approach 1:
The outer circumference wall part provides a localized guide structure with specific geometric features that interact with corresponding features on the connection member. This localized guidance mechanism ensures proper position and attitude alignment at the critical connection interface while allowing the rest of the connection member to remain freely maneuverable, thus maintaining connection ease while achieving precise alignment
Data Source
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AI summary
An object of the present invention is to provide a dialysate extraction device which can surely keep the cleanliness of the collection port during connection of the connection member to the collection port. According to the present invention, there is provided 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.