Implantable Fluid Transfer Pump With Magnetic Drive and Multi-Branch Drainage
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Solution Overview
Problem
Existing implantable liquid transfer devices face issues such as frequent punctures leading to infections, limited functionality, incompatibility with MR examinations, and restricted service life due to electronic components, along with challenges in handling different liquid properties and viscous substances.
Innovation Solution
An implantable liquid transfer device with a pump body, control valves, and branch pipes, utilizing magnetic plates and valves for active liquid transfer, along with a data monitoring component to manage fluid balance and prevent pipeline blockage, allowing for drug administration and sampling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an active micro-pump is implanted to form a transfer channel in the body, then liquid transfer capability is improved, but the device is incompatible with MR examinations and prone to blockage
Solution Approach 1:
The patent replaces the traditional active micro-pump with a magnetic field-driven liquid transfer mechanism. External magnetic fields act on magnetic particles or magnetic membranes within the implantable device to drive liquid transfer, eliminating the need for electronic motors and power supplies that cause MR incompatibility and blockage risks
Solution Approach 2:
The patent introduces magnetic particles or magnetic membranes as intermediary elements that convert external magnetic field energy into mechanical driving force for liquid transfer. These intermediaries enable passive liquid transfer without requiring active electronic components, thereby improving device safety and MR compatibility
2Productivity
If drainage pipes with valves are implanted to drain cerebrospinal fluid, then liquid drainage function is improved, but the application scope is limited and cannot be used in other tissue edema
Solution Approach 1:
The patent designs a universal implantable liquid transfer device with adjustable magnetic field parameters and configurable fluid pathways that can adapt to different tissue types and edema conditions. The device can be configured for various applications including cerebral edema, cardiac edema, renal edema, hepatic edema, and gastrointestinal edema, making it a multi-functional solution
Solution Approach 2:
The patent incorporates dynamic adjustment capabilities through controllable magnetic field strength and duration, allowing the device to adapt to different liquid transfer requirements. The magnetic field parameters can be modified based on the specific tissue edema condition, enabling the same device to handle varying fluid viscosities and transfer rates
3Ease of operation
If frequent puncture is performed for liquid transfer, then liquid transfer flexibility is improved, but inflammation and infection risk increase
Solution Approach 1:
The patent establishes a permanent implantable liquid transfer channel through the skin barrier during an initial surgical procedure. This preliminary action creates a stable, long-term liquid transfer pathway that eliminates the need for repeated punctures, thereby reducing cumulative inflammation and infection risk while maintaining operational flexibility
4Productivity
If electronic products such as power supply are included in the transfer device, then active liquid transfer function is improved, but service life is limited and MR examination is restricted
Solution Approach 1:
The patent replaces electronic power supplies and active electronic components with passive magnetic field-driven mechanisms. External magnetic fields provide the necessary energy for liquid transfer without requiring batteries or power sources, thereby extending device service life and enabling MR examination compatibility
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 enables active liquid transfer, reduces infection risk, maintains tissue pressure balance, and supports multifunctional management of liquids, including drug administration and sampling, while being compatible with MR examinations.
Implementation Method 1
the magnetic plate can move or deform in a magnetic field and change the volumes of the two chambers
Data Source
AI summary
An implantable liquid transfer device and a liquid transfer control system are provided. The device includes a pump body (11), a control valve (101), a liquid inlet pipe (15) and a liquid outlet pipe (16), wherein the control valve (101) includes a first control valve (13) and a second control valve (14), and one end of the liquid inlet pipe (15) is connected with one end of the pump body (15), and one end of the liquid outlet pipe (16) is connected with the other end of the pump body (11), and the pump body (11) is configured to drive body fluid to flow from the liquid inlet pipe (15) to the liquid outlet pipe (16), and the other end of the liquid outlet pipe (16) is provided with a plurality of branch pipes (160); and the first control valve (13) is provided on the liquid inlet pipe (15); and the second control valve (14) is provided on the liquid outlet pipe, and the second control valve (14) is a multi-way valve and is configured to control the liquid outlet pipe (16) to be communicated with the branch pipes (160), and the plurality of the branch pipes (160) are respectively provided at different tissues. The implantable liquid transfer device avoids infection by repeated punctures and has good universality for ascites patients. Moreover, the design of the multi-branch pipe (160) can be used for transferring liquids, administrating drugs or taking samples for testing, and draining the liquids which are formed by such as malignancy of a tumor and containing inflammatory factors to the outside.