Atraumatic Epicardial Pacing Wire Magnetic Release
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Solution Overview
Problem
Existing methods for removing epicardial pacing wires from the heart after cardiac surgery often result in damage to the heart, such as bleeding or even death, due to the traumatic detachment process.
Innovation Solution
A system comprising an epicardial wire with connectors and anchors attached to the heart, where the connectors are releasably connected to the anchors via magnetic force, allowing for atraumatic release and withdrawal of the wire by exceeding the magnetic force with a pulling force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional pulling force method is used to detach the wire from the heart, then the wire can be removed, but it causes damage to the heart such as bleeding or even death
Solution Approach 1:
The patent replaces the direct mechanical pulling force method with a magnetic field-based release mechanism. The connector includes a magnet that magnetically attracts to the anchor on the heart, allowing controlled release through magnetic force modulation rather than direct mechanical trauma. This substitution of mechanical detachment with magnetic interaction resolves the contradiction by enabling wire removal without causing heart damage.
Solution Approach 2:
The patent introduces a magnetic connector as an intermediary between the wire and the heart anchor. This connector with magnetic properties serves as a mediator that provides controlled attachment and release capability, replacing the direct traumatic mechanical connection. The magnetic intermediary allows for atraumatic detachment while maintaining secure attachment during the pacing period.
2Object-affected harmful factors
If magnetic force is used to releasably connect connectors to anchors, then atraumatic release is achieved, but the system complexity increases
Solution Approach 1:
The patent applies magnetic properties locally only at the connector component that interfaces with the heart anchor, rather than throughout the entire wire system. The connector is specifically designed with magnetic material concentrated at the attachment point, providing the necessary magnetic attraction while keeping the rest of the wire structure simple and maintaining ease of manipulation during insertion and removal.
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 enables safe and atraumatic removal of epicardial pacing wires from the heart, reducing the risk of damage and complications associated with traditional detachment methods.
Implementation Method 1
The connectors are configured to be releasably connected to the one or more anchors via a magnetic force
Implementation Method 2
The pulse generator is configured to transmit electrical pulses through the wire and the one or more connectors to the heart to pace the heart
Data Source
AI summary
A system for pacing a heart of a patient includes a wire having a first end and a second end. The first end is configured to be connected to a pulse generator. The second end includes one or more connectors. The system also includes one or more anchors that are configured to be attached to the heart of the patient. The one or more connectors are configured to be releasably connected to the one or more anchors. The pulse generator is configured to transmit electrical pulses through the wire and the one or more connectors to the heart to pace the heart after a cardiac surgery.