Percutaneous Right Heart Pump Anchoring Through Cardiac Membranes
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Solution Overview
Problem
Existing cardiac assist devices for the right ventricle are temporary, external, or pose significant surgical and infectious risks, and there is a lack of effective solutions for bi-ventricular dysfunctions, particularly for elderly patients with severe comorbidities.
Innovation Solution
A percutaneously implantable right cardiac assisting device with an inlet, outlet conduit, and rotary pump located inside the right atrium or vena cava, secured by support elements that anchor through heart membranes, ensuring safe implantation without damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a right ventricular assist device is implanted externally or temporarily, then the device can be installed without heavy surgery, but the patient requires immobility and the device poses infectious and thromboembolic risks
Solution Approach 1:
The assist device is implanted inside the right ventricle, nesting the pump within the heart chamber. This allows the device to be fully contained within the body without external chambers, eliminating the need for immobility while reducing infectious and thromboembolic risks associated with external devices
Solution Approach 2:
The device is divided into separate components: a pump body, a rotor, and support elements. The support elements can be deployed independently to secure the device within the ventricle, allowing for a minimally invasive implantation process while ensuring stable positioning
2Adaptability or versatility
If two LVADs are combined to treat bi-ventricular failure, then both ventricles can be assisted, but the surgical complexity and mortality risk increase
Solution Approach 1:
The device is designed to treat right ventricular failure specifically, but the same design principles can be applied to left ventricular assistance. The universal design allows a single device type to address bi-ventricular failure without requiring two separate LVADs, thereby reducing surgical complexity while maintaining therapeutic coverage
3Ease of manufacture
If a percutaneous implantation method is used, then surgical risks are reduced, but the device must be securely anchored within the heart
Solution Approach 1:
The support elements are designed to be deployed and secured to the ventricular wall before the pump is fully activated. This preliminary anchoring ensures stable positioning is established before the device begins pumping, allowing percutaneous implantation while maintaining secure attachment
Solution Approach 2:
The support elements act as intermediaries between the pump and the ventricular wall. These elements transfer the mechanical forces and provide secure anchoring, allowing the pump to be firmly fixed within the heart chamber through percutaneous insertion without requiring complex surgical procedures
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 safe, percutaneous implantation of a right ventricular assist device within the heart, reducing surgical risks and complications, and providing continuous blood flow support without the need for heavy surgery.
Implementation Method 1
a rotary pump (16) comprising a pump body (22) surrounding a rotor, said rotary pump connecting the inlet (12) to the outlet conduct (14)
Implementation Method 2
the at least one support element is configured to be secured to a first membrane of the patient's heart by passing through said first membrane
Data Source
AI summary
A right cardiac assisting device to be percutaneously implanted inside a patient's heart, including an inlet, an outlet, a pump connecting the inlet to the outlet, and being designed to be located inside the right atrium or vena cava of the patient. The assisting device includes at least one support element configured to be secured to a first membrane of the patient's heart by passing through the first membrane, the first membrane separating the right atrium from the pulmonary artery of the patient's by passing through it. The support element tightly cooperates with the outlet to immobilize the pump, the inlet and the outlet inside the patient's heart and enable the patient's blood flow to be driven from the inlet to the outlet through the first membrane.