Interatrial Septum Pacing Lead with Retaining Member
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Solution Overview
Problem
Implanting leads in the heart to treat arrhythmia can be challenging due to difficulties in locating the coronary sinus ostium, leading to excessive implantation time or unsuccessful procedures, especially when attempting to apply electrical pulses to both the left and right atria, which often requires two leads.
Innovation Solution
A lead with a retaining member and a pre-biased curved section that allows the electrode to be positioned on the interatrial septum, enabling simultaneous pacing and sensing of both atria, reducing the need for multiple leads and improving implantation efficiency by using an expandable member or umbrella structure to secure the electrode at the septum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the coronary sinus approach is used to apply electrical pulses to the left atrium, then electrical stimulation of the left atrium is achieved, but implantation time becomes excessive and the procedure becomes difficult due to difficulty in locating the coronary sinus ostium
Solution Approach 1:
The interatrial septum serves as an intermediary structure that allows access to both the left and right atria through a single puncture site. By positioning the electrode on the septum rather than requiring navigation to the coronary sinus ostium, the procedure achieves reliable left atrial stimulation while dramatically reducing implantation time and complexity.
2Adaptability or versatility
If two leads are implanted to apply electrical pulses to both the left atrium and right atrium, then simultaneous pacing of both atria is achieved, but device complexity and procedural difficulty increase
Solution Approach 1:
The patent merges the function of two separate leads (one for left atrium, one for right atrium) into a single lead that can deliver electrical pulses to both atria simultaneously. The electrode positioned on the interatrial septum enables this combined functionality, reducing device complexity while maintaining the capability for simultaneous bilateral atrial pacing.
Solution Approach 2:
The single lead design achieves multi-functionality by enabling pacing of both the left and right atria through a single electrode positioned on the interatrial septum. This universal approach allows one lead to perform the function previously requiring two separate leads, simplifying the overall system while maintaining therapeutic effectiveness.
3Adaptability or versatility
If the electrode is positioned on the interatrial septum, then simultaneous pacing of both atria is achieved with a single lead, but the lead must be securely retained on the left atrial side of the septum
Solution Approach 1:
The retaining member is deployed in advance to secure the lead on the left atrial side of the interatrial septum before final electrode positioning. This preliminary action ensures the lead remains properly positioned and prevents migration, facilitating ease of operation during the procedure while enabling simultaneous bilateral atrial pacing.
Solution Approach 2:
The retaining member acts as an intermediary mechanism that facilitates secure lead retention on the left atrial side of the septum. By providing this intermediate securing structure, the system achieves both reliable lead positioning and the desired simultaneous pacing capability without compromising ease of operation.
Data Source
AI summary
A lead includes a lead body and an electrode disposed proximate a distal end of the lead body. A retaining member is disposed proximate the distal end of the lead and adapted to retain the electrode proximate an interatrial septum when the retaining member is located on a left atrial side of the interatrial septum.