Axis-Free Turbine Heart Pump With Magnetic Drive

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Solution Overview

Problem

Existing implanted heart pumps with a center axis suffer from complications such as fat accumulation and turbulence in blood flow, and are often complex, difficult to produce, and costly.

Innovation Solution

A center axis-free turbine pump system with a rotating body and stator, where the stator is placed outside the blood stream and powered by a magnetic field, allowing for laminar blood flow and simplified design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a turbine pump with a centre axis is used, then the pump can provide additional pumping capacity, but fat accumulation occurs in the heart and turbulence is created in blood flow

Engineering Contradiction:
Improvepumping capacityVSAvoidfat accumulation and turbulence
Core Design Contradiction:
PowerVSObject-affected harmful factors

Solution Approach 1:

The invention extracts and removes the centre axis from the turbine pump design. By eliminating the central rotational axis and replacing it with an outer peripheral rotation system, the patent eliminates the sources of turbulence and fat accumulation that were inherent in conventional centre-axis turbine designs, while preserving the pumping function through the interaction between the outer-peripheral rotor blades and stator elements.

Inventive Principle:
Principle #2Taking out (Extraction)

2Power

If conventional turbine pumps are designed with centre axes and vanes, then pumping function is achieved, but the design becomes complicated and costly to produce

Engineering Contradiction:
Improvepumping functionVSAvoiddesign complexity and production cost
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The invention extracts and removes the centre axis from the turbine pump design. By eliminating the central rotational axis and replacing it with an outer peripheral rotation system, the patent eliminates the sources of turbulence and fat accumulation that were inherent in conventional centre-axis turbine designs, while preserving the pumping function through the interaction between the outer-peripheral rotor blades and stator elements.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention segments the turbine pump into distinct functional components: an outer peripheral rotating body with blades, and separate stator elements positioned radially inward. This segmentation allows each component to be optimized independently and simplifies manufacturing, as the complex centre axis assembly is replaced by simpler outer-peripheral and radial components that can be produced and assembled more easily.

Inventive Principle:
Principle #1Segmentation

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 reduces fat accumulation and turbulence while providing additional pumping capacity with a simplified, cost-effective design.

Implementation Method 1

The stator can be a part of an electrically controlled arrangement, which includes elements for receiving current to increase or decrease a magnetic field created at the stator, for providing rotation of the rotating body or not, by creating a magnetic field between the poles of the stator

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Data Source

PatentUS12521545B2Heart help pump, system, and method
Publication Date: 2026.01.13 FORSELL PETER
  • US12521545B2 patent drawing
  • US12521545B2 patent drawing
  • US12521545B2 patent drawing

AI summary

The present invention relates to a heart pump apparatus comprising a turbine pump for assisting the heart of a human patient. The invention is based on the realization that a turbine without a centre axis would improve the capacity of the heart help pump apparatus. The present invention also relates to a turbine pump system for assisting the heart of a human patient. The present invention also relates to operation methods and methods for surgically placing a rotating body of a turbine pump and a stator of a turbine pump in a patient.