Magnetically Coupled Intravascular Rotary Pump for Cardiac Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional heart-lung machines and catheters fail to adapt to the specific requirements of a weakened heart, leading to inadequate blood circulation and organ support during heart failure, and existing devices lack the ability to provide continuous, efficient cardiac function restoration.
Innovation Solution
An intravascular rotary pump with a magneto coupling is integrated into a catheter, using a rotor connected via a magneto coupling to an internal drive, and a balloon for retroperfusion, with fluid regulation based on heart ventricle measurements to optimize blood circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional heart-lung machines are used to maintain forced circulation, then blood circulation can be maintained, but the devices cannot adapt to the specific requirements of the weakened heart
Solution Approach 1:
The device is divided into multiple functional components: a catheter for fluid extraction, a pump system with variable speed capability, and a control system that processes sensor data. This segmentation allows each component to be optimized independently while maintaining overall adaptability to heart requirements.
Solution Approach 2:
The device incorporates sensors that continuously monitor heart function parameters and feed this information back to the control system, which adjusts pump operation in real-time. This feedback mechanism enables the device to adapt to the weakened heart's specific requirements dynamically.
2Duration of action of moving object
If external pumps are used to maintain forced circulation, then blood flow can be sustained, but the circulation is not optimized for continuous cardiac function restoration
Solution Approach 1:
The device is designed for continuous operation with the pump running throughout the support period, continuously extracting and returning fluid to maintain circulation. This continuous action ensures sustained cardiac support over the required duration while efficiently restoring heart function.
Solution Approach 2:
The pump speed and fluid extraction rate are dynamically adjusted based on real-time heart function monitoring. This dynamic operation allows the device to maintain optimal circulation support throughout the duration of use while adapting to changing cardiac conditions to maximize restoration efficiency.
3Duration of action of stationary object
If conventional catheters are used for fluid return, then fluid can be returned at a suitable site, but the devices cannot provide intensive provision over a particular period of time
Solution Approach 1:
The device is pre-configured with the catheter positioned at the appropriate anatomical site before activation. This preliminary positioning ensures that when intensive support is required, the device can immediately begin reliable fluid return without delays, maintaining blood flow reliability throughout the support period.
Solution Approach 2:
Continuous monitoring of fluid return parameters and heart function provides real-time feedback to ensure reliable operation. This feedback mechanism allows the device to maintain reliable blood flow throughout the intensive support period by detecting and responding to any deviations from optimal performance.
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
The system provides efficient, low-stress blood circulation and continuous cardiac support by adapting to heart function, ensuring reliable peripheral blood flow and organ perfusion.
Implementation Method 1
An intravascular rotary pump with a magneto coupling is integrated into a catheter, using a rotor connected via a magneto coupling to an internal drive
Data Source
AI summary
A device to assist the performance of a heart with at least one pump that is formed as a rotary pump and magnetically driven.