Aspiration Device with Integrated Centrifugal Pump and Magnetic Coupling
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Solution Overview
Problem
Existing aspiration devices for treating acute pulmonary thrombo-emboli and massive iliocaval thrombosis have long lines that lead to blood volume loss, clogging issues, and high costs due to the need for external pumps and extensive preparation, making them inefficient and costly to use in surgical settings.
Innovation Solution
A compact aspiration device with shorter lines and a portable centrifugal pump system integrated within the operating table, utilizing a brushless DC motor and magnetic coupling for efficient blood circulation and filtration, reducing blood loss and operational costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If long lines are used for blood circulation in aspiration devices, then the device can be used with external pumps and filters, but blood volume loss increases and clogging issues occur more frequently
Solution Approach 1:
The patent integrates the pump head, filter, and control systems into a single compact sterile set that can be placed within the operating table. This merging eliminates the need for long external lines and multiple separate components, directly reducing blood volume loss while maintaining full functionality for thrombus aspiration and filtration
2Adaptability or versatility
If long lines are used in the aspiration device, then external pump and filter systems can be utilized, but the device complexity and space requirements increase
Solution Approach 1:
The patent combines the centrifugal pump head, filter, motor unit, and control systems into a single integrated sterile set. This consolidation simplifies the overall device configuration, reduces the number of separate components that need to be managed, and eliminates the complexity associated with connecting and managing multiple external devices while preserving all necessary functions
Solution Approach 2:
The patent places the compact sterile set including pump head, filter, and motor unit within the operating table space. This nesting approach utilizes existing surgical equipment space efficiently, reducing the need for additional external equipment and simplifying the overall surgical setup
3Productivity
If centrifugal pump heads are kept ready for use, then surgical procedures can proceed without delays, but the cost of equipment and blood products increases
Solution Approach 1:
The patent integrates the pump head directly into the sterile set with the filter and other components in a compact configuration. This integration eliminates the need to keep separate pump heads ready, as the entire system is prepared as a single sterile unit, reducing both equipment costs and blood product usage while maintaining surgical efficiency
Solution Approach 2:
The patent provides the pump head as part of the pre-packaged sterile set that is ready for immediate use. This preliminary preparation eliminates the need for separate pump head availability arrangements and reduces the amounts of blood and blood products used during the procedure
4Volume of moving object
If the pump motor is placed within the operating table, then the sterile set becomes compact and portable, but the motor design requirements become more stringent
Solution Approach 1:
The patent employs a brushless DC motor with magnetic coupling to drive the centrifugal pump head without direct mechanical connection. This substitution of the traditional mechanical drive system with an electromagnetic system enables compact integration within the operating table while maintaining sterility and reducing mechanical complexity in the sterile field
Solution Approach 2:
The patent uses magnetic coupling as an intermediary between the motor and the pump head, allowing power transmission without direct mechanical contact. This intermediary approach enables the motor to be placed within the operating table while maintaining the sterility barrier and simplifying the overall integration
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 device effectively removes large thrombi with reduced blood and blood product usage, is more cost-effective, and compatible with standard operating room equipment, minimizing the need for external equipment and reducing surgical complications.
Implementation Method 1
the pump which provides blood circulation in this device is centrifugal
Implementation Method 2
The centrifugal pump head is a part that is available in the set that is received into the operating table and the rotation motion to this head is provided to this head by means of the electric motor using the magnetic coupling system
Implementation Method 3
a brushless DC motor and magnetic coupling for efficient blood circulation
Implementation Method 4
said thrombi are filtered through a suitable pored filter
Data Source
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AI summary
The invention is related to an aspiration device that has been developed in order to be used in acute pulmonary thrombo-emboli and thrombosis treatment.