Pacemaker Lead Positioning in Interventricular Septum via Coronary Sinus
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Solution Overview
Problem
Current methods for positioning a pacemaker lead in the interventricular septum are invasive, risky, and often require two leads, leading to inefficient electrical stimulus transmission and ventricular desynchronization.
Innovation Solution
A method involving a pacemaker lead guided through a coronary sinus and intervention wire, using a balloon-tipped catheter to block the sinus and position the lead within the interventricular septum, allowing direct electrical stimulus application with minimal invasiveness and using a single lead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tip of the pacemaker lead is inserted and fixed in the apex of the right ventricle (RVAP), then the procedure is simple and widely used, but the electrical stimulus transmission is slow causing wide QRS and ventricular desynchronization
Solution Approach 1:
The patent uses an intervention wire as an intermediary tool to guide the pacemaker lead through the coronary sinus and position it accurately in the interventricular septum. This mediator enables precise positioning without requiring complex surgical procedures, thus maintaining ease of operation while achieving superior electrical stimulus transmission through the conduction system.
2Reliability
If the tip of the pacemaker lead is positioned at the interventricular septum around RVOT (RVSP), then electrical stimulus transmission is improved, but the lead is difficult to accurately position and may separate or move
Solution Approach 1:
The patent employs an intervention wire that is预先 positioned through the coronary sinus and into the interventricular septum before inserting the pacemaker lead. This preliminary action creates a stable track that guides the lead to the exact desired position, making the positioning process easier and more reliable while preventing lead separation or movement.
3Reliability
If direct electrical stimulus is applied to the interventricular septum through coronary sinus, then QRS width is narrowed and ventricular synchronization is improved, but the procedure becomes more invasive and risky
Solution Approach 1:
The patent replaces invasive mechanical puncture methods with a less invasive approach using an intervention wire guided through the coronary sinus. This substitution maintains the ability to deliver direct electrical stimulus to the interventricular septum for narrowed QRS while significantly reducing procedural risk and tissue damage by avoiding forceful penetration of the septum.
4Reliability
If two leads are used for cardiac resynchronization therapy (CRT), then ventricular synchronization is achieved, but the device complexity and procedural invasiveness increase
Solution Approach 1:
The patent makes the single pacemaker lead multi-functional by positioning its tip in the interventricular septum where it can directly stimulate the conduction system. This single lead simultaneously achieves both pacing function and resynchronization function, eliminating the need for a separate left ventricular lead and reducing device complexity while maintaining effective ventricular synchronization.
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
This approach effectively reduces the risk of the procedure, minimizes tissue damage, and achieves narrower QRS intervals with improved ventricular synchronization using a single lead, overcoming the limitations of existing RVAP and CRT methods.
Implementation Method 1
using a balloon-tipped catheter to block the sinus and position the lead within the interventricular septum
Data Source
AI summary
The present invention relates to a method for positioning a tip of a pacemaker lead that has passed through coronary sinus into an interventricular septum. More particularly, it relates to a method for positioning a tip of a pacemaker lead that has passed through a coronary sinus into an interventricular septum in order to more effectively transmit an electrical stimulus in a treatment using a pacemaker for patients with arrhythmia.A method of positioning a tip of a pacemaker lead, which has passed through a coronary sinus, into an interventricular septum, in order to effectively transmit electrical stimulus, includes: inserting into an intervention wire through a superior vena cava and a coronary sinus to pass through the interventricular septum and then guiding the intervention wire to an inferior vena cava; and positioning the tip of the lead into the interventricular septum by inserting the pacemaker lead along the intervention wire.