Delivery Catheter Handle Staged Deployment Locking
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Solution Overview
Problem
Current methods for repairing mitral valve regurgitation often require open heart surgery and cardiopulmonary bypass, which are invasive and carry significant morbidity, necessitating alternative minimally invasive techniques for endovascular repair without the need for open chest access or heart bypass.
Innovation Solution
A medical delivery system comprising a housing, a delivery device, a lock mechanism, and a handle that allows for the staged deployment of an implantable device, enabling the secure positioning and locking of a catheter within a sleeve for targeted valve repair, allowing for minimally invasive procedures without open chest access or heart bypass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If open heart surgery and cardiopulmonary bypass are used for mitral valve repair, then effective valve repair can be achieved, but patient trauma and morbidity increase significantly
Solution Approach 1:
The patent replaces the mechanical open heart surgery approach with an endovascular system that delivers repair devices through the vasculature. The delivery catheter system substitutes for traditional surgical incisions and bypass machinery, enabling valve repair through minimally invasive puncture sites while maintaining repair effectiveness.
Solution Approach 2:
The patent introduces intermediary delivery devices and catheters as mediators between the operator and the valve repair procedure. These intermediaries enable the delivery of repair devices through the vascular system, avoiding direct surgical exposure of the heart while still achieving the desired valve repair outcome.
2Object-affected harmful factors
If endovascular delivery system is used for valve repair, then patient trauma is reduced, but device complexity increases
Solution Approach 1:
The patent segments the complex delivery system into distinct functional components: the delivery catheter, the expandable implantable device, the locking mechanism, and the actuation system. Each component performs a specific function, allowing the overall system to achieve endovascular delivery while maintaining manageable complexity through modular design.
Solution Approach 2:
The patent employs a nested configuration where the implantable device is delivered within the catheter, which is introduced through the vascular system. The locking mechanism is nested within the device structure, and the actuation system is integrated into the catheter assembly. This nesting allows multiple functions to be contained within a compact, deliverable package while reducing procedural complexity.
3Object-affected harmful factors
If minimally invasive endovascular approach is used, then surgical morbidity is reduced, but precision and control during deployment are challenging
Solution Approach 1:
The patent incorporates feedback mechanisms in the locking system that provide tactile and positional information to the operator during deployment. The locking mechanism includes features that give feedback when the device is properly positioned and locked, enabling precise control and confirmation of deployment status without requiring complex imaging or monitoring systems.
Solution Approach 2:
The patent employs dynamic control mechanisms that allow the device to transition from a compressed delivery state to an expanded implantable state through controlled actuation. The locking mechanism dynamically transitions between locked and unlocked states, providing precise control over the deployment timing and position, thereby achieving high precision despite the minimally invasive approach.
Data Source
AI summary
Methods, devices, and systems are provided for performing endovascular repair of atrioventricular and other cardiac valves in the heart. A delivery device for staged deployment of an implantable device to a target area. The delivery device includes a deployment handle and one or more lock lines extending from the deployment handle through the catheter to the implantable device, the one or ore lock lines being configured to engage with the implantable device to allow locking of the implantable device.