Blood Purification Apparatus Fluid Infusing Line Connection
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Solution Overview
Problem
Existing blood purification apparatuses face operability issues when transitioning from priming to blood purification treatment, as the connection state of the fluid infusing line needs to be changed, leading to degraded performance.
Innovation Solution
A blood purification apparatus with a blood purifier, arterial and venous blood circuits, air trap chambers, and a fluid infusing line that maintains connection state by using a fluid supplying device to control the flow of replenishment fluid, allowing seamless transition from priming to treatment while improving operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the fluid infusing line connection state is changed between priming and blood purification treatment process, then the blood purification treatment can be performed, but the operability is degraded
Solution Approach 1:
The fluid infusing line is designed to serve multiple functions: during priming it connects to the dialysate introduction line to enable priming operation, and during blood purification treatment it connects to the arterial air trap chamber or venous air trap chamber to enable fluid infusion. This multi-functional design allows the same line to maintain its connection state while supporting different operational modes, thereby improving operability without requiring reconnection.
Solution Approach 2:
The system performs preliminary actions by pre-establishing the fluid infusing line connection to the air trap chamber before the blood purification treatment begins. The control device automatically manages the connection state transition during priming, so that when treatment starts, the line is already positioned correctly without requiring manual intervention or reconnection operations.
2Productivity
If the fluid infusing line is reconnected after priming, then the blood purification treatment can proceed, but the transition process becomes complex and less efficient
Solution Approach 1:
The fluid infusing line maintains continuous connection to the air trap chamber throughout both priming and blood purification treatment processes. The control device ensures continuous useful action by automatically switching the line's functional role rather than physically reconnecting it, eliminating downtime and operational interruptions during the transition from priming to treatment.
Solution Approach 2:
The control device performs self-service by automatically managing the connection state and functional switching of the fluid infusing line. The system monitors operational mode transitions and automatically repositions the line's function without requiring manual intervention, thereby improving transition efficiency and reducing time loss.
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
Enables smooth operation by maintaining the connection state of the fluid infusing line, enhancing the transition from priming to blood purification treatment and improving overall operability.
Implementation Method 1
A blood pump is disposed in the arterial blood circuit
Implementation Method 2
A fluid supplying device supplies the replenishment fluid, that flows in the fluid infusing line, to the arterial blood circuit or the venous blood circuit
Implementation Method 3
a blood purifier with a blood purification membrane to perform blood purification in the blood purification membrane
Implementation Method 4
An overflow line extends from the top of the venous air trap chamber and can discharge liquid in the venous air trap chamber to the outside, causing the liquid to overflow
Data Source
AI summary
A blood purification apparatus, during priming, has one end of the fluid infusing line L3 connected at the same location as the connected location of the fluid infusing line L3 during the blood purification treatment process. Determining whether either a pre-fluid infusion, where replenishment fluid is supplied to an arterial air trap chamber 5, or a post-fluid infusion, where the replenishment fluid is supplied to a venous air trap chamber 6, will be performed in the blood purification treatment process. The end of an arterial blood circuit 2 and the end of a venous blood circuit 3 are connected together to communicate fluid. In addition, a blood pump 4 is driven in normal rotation or in reverse rotation direction while the replenishment fluid is supplied from the fluid infusing line L3. The replenishment fluid is discharged from an overflow line 6a.