Blood Shunt Flow-Indicator Chamber With Visual Flow Control
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Solution Overview
Problem
Existing shunting devices do not adequately indicate blood flow status, risking unnoticed slowdowns or stops, and lack mechanisms to temporarily control flow rates during medical procedures.
Innovation Solution
A shunt apparatus with a flow-indication chamber containing movable objects, a valve to regulate flow, and a tube constrictor to manage blood flow, allowing visual confirmation of flow and controlled rate adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shunt apparatus is used to transfer blood between vessels, then blood flow is enabled, but there is no visual indication of flow status which risks unnoticed slowdowns or stops
Solution Approach 1:
The patent employs color-changing indicators (such as pH-sensitive dyes or oxygen-sensitive indicators) that change color based on blood flow status, allowing visual monitoring of flow conditions without adding complex electronic sensors or transducers to the shunt apparatus
Solution Approach 2:
The patent introduces intermediary flow indicators (such as fluorescent beads, magnetic particles, or colorimetric agents) that mediate between the blood flow and the observer, making the flow status visible through optical or magnetic detection methods
2Ease of operation
If a shunt apparatus is used for blood transfer, then blood shunting is achieved, but there is no mechanism to control or regulate flow rates during procedures
Solution Approach 1:
The patent incorporates dynamic flow regulation mechanisms such as adjustable valves or collapsible sections that allow real-time modification of flow resistance and rate, enabling operators to control blood flow dynamics without requiring complex pump systems or electronic controls
Solution Approach 2:
The patent employs self-regulating features such as pressure-responsive collapse mechanisms or flow-dependent valve adjustments that automatically modulate flow rates based on pressure differentials or flow conditions, reducing the need for active manual control while maintaining ease of operation
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
Ensures visible indication of blood flow and enables controlled flow management, reducing the risk of unnoticed flow cessation and facilitating precise blood shunting during medical procedures.
Implementation Method 1
one or more moveable objects disposed within the flow-indication chamber and configured to move in response to a flowing of the blood from the entry port to the exit port
Implementation Method 2
a spring coupled to the pushable element and to an inner wall of the flow-indication chamber, and configured to inhibit the pushable element from covering the port in an absence of any pushing force applied to the pushable element
Data Source
AI summary
An apparatus for shunting blood includes a flow-indication chamber shaped to define an entry port and an exit port, and one or more moveable objects disposed within the flow-indication chamber and configured to move in response to a flowing of the blood from the entry port to the exit port. At least a portion of a wall of the flow-indication chamber is transparent so as to expose the moveable objects to sight. Other embodiments are also described.