Wireless Circulatory Assist Pump With Magnetic Drive and Flexible Positioning

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing blood pumping catheters and circulatory assist devices face challenges such as interference with natural heart pulsatility, high risk of hemolysis, mechanical breakdown, infection, and strict positioning requirements, which limit their effectiveness and safety.

Innovation Solution

A minimally invasive, wireless circulatory assist pump system using a low-profile catheter-based design with a removable aortic stent and wireless power, featuring a magnetized impeller and stent cage that operates at lower RPMs to minimize hemolysis and mechanical failure, while allowing for flexible positioning and automatic adjustment based on patient conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If existing blood pumping catheters are used to provide circulatory support, then blood flow can be enhanced, but the risk of hemolysis and mechanical breakdown increases due to high RPM operation

Engineering Contradiction:

Improveblood flow enhancementVSAvoidrisk of hemolysis and mechanical breakdown

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent replaces the traditional mechanical drive cable and rotor system with a wireless magnetic drive system. The drive cable extending through the catheter is eliminated and replaced by magnetic coupling between an external drive source and an impeller at the distal end, reducing mechanical complexity and failure points while maintaining pumping effectiveness

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the operational parameters by using magnetic drive to achieve impeller rotation without the high RPM mechanical transmission of traditional systems. This parameter change reduces mechanical stress and hemolysis risk while maintaining adequate blood flow enhancement

Inventive Principle:

Principle #35Parameter changes

2Productivity

If catheter pumps are positioned in the ascending aorta near the aortic valve, then effective blood pumping is achieved, but strict positioning requirements and interference with natural heart pulsatility occur

Engineering Contradiction:

Improveblood pumping effectivenessVSAvoidpositioning flexibility

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent employs a flexible catheter design that can navigate and position itself dynamically within the aorta. The catheter's flexibility allows it to adapt to different anatomical configurations and positioning requirements, moving from rigid fixed-position systems to dynamic adaptable positioning

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The wireless magnetic drive system provides universal applicability across different catheter positions and patient anatomies. The external drive source can maintain effective coupling regardless of specific catheter location, making the system adaptable to various positioning scenarios without requiring precise fixed placement

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Power

If drive cable systems are used to power the impeller, then mechanical power transmission is achieved, but the risk of infection and mechanical breakdown increases

Engineering Contradiction:

Improveimpeller power transmissionVSAvoidinfection risk and mechanical failure

Core Design Contradiction:

PowerVSReliability

Solution Approach 1:

The patent substitutes the mechanical drive cable system with a wireless magnetic power transmission system. Magnetic fields transmit power through tissue without physical connections, eliminating the infection pathway and mechanical failure points associated with drive cables while maintaining effective impeller power transmission

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic field serves as an intermediary medium to transmit power from the external drive source to the impeller without physical contact. This intermediary approach allows energy transfer while eliminating the need for penetrating mechanical connections that create infection risks

Inventive Principle:

Principle #24Intermediary (Mediator)

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 enhanced blood flow, reduces hemolysis and mechanical failure risks, maintains arterial pulsatility, and supports renal function, offering improved safety and flexibility in placement without the need for frequent manual adjustments.

Implementation Method 1

The wireless circulatory assist pump system uses a low profile, catheter-based technique and can be used to provide temporary and/or chronic circulatory support depending on the needs of the subject

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

featuring a magnetized impeller and stent cage that operates at lower RPMs to minimize hemolysis and mechanical failure

Methodology Applied

Scientific EffectMagnetic field interaction: Magnetic Field

Data Source

PatentUS12544560B2Wireless chronic implant

Publication Date: 2026.02.10 SECOND HEART ASSIST INC

AI summary

A minimally invasive system for a wireless circulatory support pump that utilizes a low profile catheter-based techniques and provides temporary and chronic circulatory support depending on the needs of the subject. The system includes a wireless circulatory assist pump, a deployment catheter, and a retrieval catheter for inserting and removing the wireless circulatory assist pump from a subject. The wireless circulatory support pump is relatively easy to place, has high flow rates, and provide improvements in the subject's renal function.