Intrapleural Pressure Regulating Device Using Bidirectional Pump
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Solution Overview
Problem
Current technologies are inadequate in effectively regulating intrapleural pressure and volume to support or replace lung and heart functions, particularly in conditions where fluid accumulation impairs lung function or cardiac and respiratory arrest occurs.
Innovation Solution
A device comprising a delivery set, bidirectional pump, and control unit that pumps and withdraws fluid from the intrapleural cavity, allowing for variable pressure regulation via periodic waveforms to support or replace lung and heart functions, and includes sensors for monitoring and external data integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fluid is pumped into the intrapleural cavity to regulate pressure, then intrapleural pressure can be supported or replaced, but device complexity increases due to the need for bidirectional pump and control unit
Solution Approach 1:
The bidirectional pump serves multiple functions: it can pump fluid into the intrapleural cavity to increase pressure, withdraw fluid to decrease pressure, and maintain pressure at a set level. This single device replaces what would otherwise require separate infusion and drainage systems, reducing overall device complexity while maintaining reliable pressure regulation.
Solution Approach 2:
The control unit receives feedback from pressure sensors monitoring the intrapleural cavity and automatically adjusts pump operation to maintain the desired pressure level. This closed-loop control system simplifies the user interface and operation while ensuring reliable pressure regulation without requiring complex manual control mechanisms.
2Adaptability or versatility
If bidirectional pump is used to regulate intrapleural pressure, then pressure can be increased or decreased, but device complexity increases
Solution Approach 1:
The bidirectional pump provides both infusion and drainage functions through a single device, enabling the system to adapt to different clinical scenarios (fluid accumulation removal, pressure support, volume expansion) without requiring separate equipment, thereby achieving versatility without proportionally increasing complexity.
Solution Approach 2:
The pump system dynamically adjusts its operation mode (pumping in, pumping out, or maintaining) based on real-time pressure feedback and control algorithms, allowing the system to adapt to changing patient conditions while using a single versatile hardware platform rather than multiple fixed-function devices.
3Measurement precision
If sensors and external data integration are added for monitoring, then patient outcomes improve through better monitoring, but device complexity increases
Solution Approach 1:
Pressure sensors provide continuous feedback to the control unit, which automatically adjusts pump operation to maintain target pressure levels. This closed-loop monitoring and control system improves measurement precision and patient outcomes while using standardized sensor and control components that do not proportionally increase overall system complexity.
Solution Approach 2:
The monitoring, control, and pump functions are integrated into a single unified system rather than separate independent devices. The control unit combines pressure sensor data, pump control, and waveform generation in one module, reducing the number of separate components and simplifying the overall system architecture while maintaining precise monitoring capabilities.
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 effective regulation of intrapleural pressure to support or replace lung and heart functions, remove foreign substances, and synchronize with natural respiratory and cardiac cycles, improving patient outcomes in impaired conditions.
Implementation Method 1
at least one pump (3), to which the delivery set is connected and capable of pumping fluid in two directions
Data Source
AI summary
An intrapleural pressure regulating device that regulates the pressure in the intrapleural cavity and an operating method therefor are provided. The intrapleural pressure regulating device provides for removal of the foreign substances in the alveolar system and for supporting or replacing the functions of lungs and heart. With the intrapleural pressure regulating device, developed are a device regulating the pressure in the intrapleural cavity by pumping a fluid into the intrapleural cavity and withdrawing it from the intrapleural cavity, and an operating method for variable regulation of the pressure in the intrapleural cavity with said device.