Wireless Chronic Implant Pump With Low-Profile Catheter Deployment

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing catheter pumps for circulatory assistance face challenges such as interference with natural 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 aortic stent cage that maximizes blood flow while minimizing hemolysis and mechanical failure, and includes automatic adjustment mechanisms for optimal performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a catheter pump is positioned in the ascending aorta near the aortic valve, then circulatory assistance is provided, but interference with natural pulsatility occurs and positioning requirements become strict

Engineering Contradiction:

Improvecirculatory assistance effectivenessVSAvoidpositioning flexibility

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The pump system is designed to dynamically adapt to the natural pulsatility of the aorta rather than resisting it. The pump's operational parameters can be adjusted in real-time to synchronize with the cardiac cycle, allowing effective circulatory assistance while maintaining natural arterial pulsation patterns and reducing positioning constraints.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system employs variable operational parameters including adjustable pump speed, flow rate, and timing synchronization with the cardiac cycle. These parameter changes enable the pump to provide effective circulatory support while adapting to natural pulsatility variations and reducing strict positioning requirements.

Inventive Principle:

Principle #35Parameter changes

2Power

If a drive cable and external drive source are used, then the pump can be operated, but the risk of mechanical breakdown and infection increases

Engineering Contradiction:

Improvepump operation capabilityVSAvoidmechanical breakdown and infection risk

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical drive cable and external drive source system with a wireless power transmission system. Energy is transmitted through the aortic wall and pump housing to drive the impeller without any mechanical connection to the exterior, eliminating the driveline infection pathway and reducing mechanical failure points.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The aortic wall and pump housing serve as intermediary structures that allow wireless energy transmission from an external power source to the internal impeller. This intermediary approach enables power delivery without direct mechanical penetration, reducing infection risk while maintaining pump operation.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If the pump operates at high flow rates, then circulatory support is enhanced, but hemolysis risk increases

Engineering Contradiction:

Improveblood flow rateVSAvoidhemolysis

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The pump operates in a pulsatile manner synchronized with the natural cardiac cycle rather than continuous operation. This periodic action allows high flow rates during systole while providing rest periods during diastole, reducing shear stress on blood cells and minimizing hemolysis while maintaining effective circulatory support.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The pump dynamically adjusts its operational characteristics including speed, flow rate, and pulse timing to optimize blood flow while minimizing hemolytic effects. The system adapts to varying hemodynamic conditions to maintain safe operating parameters that prevent blood cell damage.

Inventive Principle:

Principle #15Dynamics

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 circulatory support with reduced hemolysis, mechanical breakdown, and infection risk, while maintaining arterial pulsatility and optimizing flow rates, suitable for both temporary and chronic use, with automatic adjustments for improved patient management.

Implementation Method 1

The wireless circulatory assist pump system uses a low profile, catheter-based technique... featuring wireless power

Methodology Applied

Scientific EffectWireless power transmission: Electromagnetic Induction

Implementation Method 2

featuring a magnetized impeller and aortic stent cage that maximizes blood flow

Methodology Applied

Scientific EffectMagnetic field interaction: Magnetic Field

Data Source

PatentUS20250325798A1Wireless chronic implant

Publication Date: 2025.10.23 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.