Cardiac Tissue Anchor Deployment With Pressure-Guided Catheter Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cardiac tissue anchor deployment systems lack reliable anchoring techniques, leading to inadequate deployment force, potential tissue damage, or unwanted punctures during deployment.
Innovation Solution
The system employs external visualization using an imaging sensor to monitor the distal end of the tissue anchoring catheter, combined with automated pressure regulation and safety locks to ensure proper deployment force, preventing deployment until the predetermined pressure is achieved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the deployment force is increased to ensure secure anchoring, then the reliability of anchoring is improved, but the risk of tissue damage and unwanted punctures increases
Solution Approach 1:
The patent applies parameter changes by using a force sensor to monitor the deployment force in real-time and automatically adjusting the force applied during anchor deployment. This ensures the force remains within a safe range that prevents tissue damage while maintaining sufficient anchoring reliability. The system changes the force parameter dynamically based on feedback from the force sensor.
Solution Approach 2:
The patent implements feedback control through a force sensor that continuously monitors the deployment force and provides feedback to the operator or automated control system. This feedback mechanism allows real-time adjustment of deployment parameters to prevent excessive force that could cause tissue damage while ensuring reliable anchor placement.
2Object-affected harmful factors
If the deployment force is decreased to prevent tissue damage, then the safety is improved, but the anchoring reliability deteriorates
Solution Approach 1:
The system dynamically adjusts the deployment force parameter based on real-time feedback from the force sensor, maintaining the force within an optimal range that ensures both tissue safety and anchoring reliability. The parameter is not fixed but adapts during the deployment process.
Solution Approach 2:
The force sensor provides continuous feedback about the actual deployment force, allowing the system to make real-time corrections to maintain reliable anchoring while preventing tissue damage. This closed-loop control ensures both safety and effectiveness.
3Ease of operation
If manual deployment control is used to prevent tissue damage, then the ease of operation is improved, but the deployment precision deteriorates
Solution Approach 1:
The force sensor provides automated feedback about the deployment force, supplementing manual operator control with objective data. This feedback enhances deployment precision by giving the operator real-time information about the actual force being applied, enabling more precise manual control.
Solution Approach 2:
The force sensor acts as an intermediary between the operator's manual control actions and the actual deployment force. It translates the operator's actions into measurable force data, providing an intermediate layer that improves precision without removing manual control.
4Manufacturing precision
If automated pressure regulation is implemented to ensure proper deployment force, then the deployment precision is improved, but the device complexity increases
Solution Approach 1:
The automated pressure regulation system uses feedback from the force sensor to automatically adjust deployment parameters, improving precision without requiring complex mechanical pressure regulation mechanisms. The feedback loop provides intelligent control based on actual force measurements.
Solution Approach 2:
The patent replaces complex mechanical pressure regulation systems with a simpler electronic sensing and feedback system. Instead of using complex mechanical mechanisms to control deployment force, the system uses a force sensor and electronic control, reducing overall device complexity while improving precision.
Data Source
AI summary
Devices and methods for securing a tissue anchor in tissue of a patient, in particular to ensure proper deployment of a cardiac tissue anchor by regulating the force or pressure of a deployment tool against the tissue. One way to ensure proper deployment force is to visualize the distal end of the tissue anchoring catheter from outside the body using a display for an imaging sensor, where the distal end of the catheter changes configuration when it is pressed against the tissue. Another method involves automatically regulating the pressure applied to the tissue prior to deployment of the tissue anchor, which may also be used in conjunction with visualization. Several safety locks to prevent deployment of the tissue anchor prior to establishment of the proper pressure are disclosed, which again may be used with visualization and/or an automated pressure regulator.