Pre-Loaded Guidewire Cannulation for Stable Cardiac Access
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Solution Overview
Problem
Existing cardiac procedures face challenges in simultaneously accessing and maintaining the correct position of multiple medical devices within the heart, leading to potential tissue punctures, suboptimal puncture locations, and increased procedure complexity, particularly when attempting to cannulate a new wire through a dilator into a newly accessed space.
Innovation Solution
A system for deploying a pre-loaded guidewire with a guidewire control device that allows for controlled advancement through a lumen, featuring a trigger mechanism or position dial to manage the guidewire's movement, ensuring secure access and positioning within the heart.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple medical devices are used simultaneously to access heart tissues, then access to heart and subsequent tissues is achieved, but the risk of inadvertent movement causing tissue puncture, suboptimal puncture location, or loss of access increases
Solution Approach 1:
The patent combines multiple devices (puncture wire, dilator, guidewire) into a single integrated delivery system with a common shaft and control mechanism. This merging allows all devices to be advanced and positioned simultaneously through a single lumen, eliminating the need to manually handle multiple separate devices and reducing the risk of inadvertent movement or loss of access.
Solution Approach 2:
The patent introduces a control wire as an intermediary element that mediates between the operator and the multiple nested devices. The control wire can be independently advanced to push the puncture wire, dilator, and guidewire in a controlled sequence, providing precise positional control and reducing the risk of accidental tissue puncture or suboptimal positioning.
2Reliability
If a wire is cannulated through a dilator into a newly accessed space, then secure access and rail for subsequent devices is achieved, but the complexity of simultaneously managing multiple devices increases
Solution Approach 1:
The patent merges the dilator and guidewire delivery into a single integrated system where the guidewire is pre-loaded within the dilator lumen. This allows the guidewire to be automatically deployed through the dilator upon advancement, eliminating the need for separate manual cannulation steps and reducing handling complexity while ensuring secure access.
Solution Approach 2:
The guidewire is pre-loaded into the dilator lumen before the procedure begins. This preliminary positioning allows the guidewire to be automatically advanced through the dilator and into the target space simply by advancing the dilator, eliminating the need for complex simultaneous manipulation of multiple devices and reducing procedural complexity.
3Ease of operation
If manual handling of multiple devices is performed, then access to heart tissues is achieved, but the risk of accidental puncture, suboptimal puncture location, or loss of access increases
Solution Approach 1:
The patent combines multiple devices into a single integrated delivery system with a common shaft and control mechanism. This merging allows all devices to be advanced and positioned simultaneously through a single lumen, eliminating the need to manually handle multiple separate devices and reducing the risk of inadvertent movement or loss of access.
Solution Approach 2:
The patent introduces a control wire as an intermediary element that mediates between the operator and the multiple nested devices. The control wire can be independently advanced to push the puncture wire, dilator, and guidewire in a controlled sequence, providing precise positional control and reducing the risk of accidental tissue puncture or suboptimal positioning.
Data Source
AI summary
A system for deployment of a pre-loaded guidewire for access to a heart is disclosed. The system includes a device comprising an elongated body having a body length, a proximal end and a distal end portion terminating in a distal tip and a lumen extending through the elongated body and being dimensioned to slidingly receive the pre-loaded guidewire. The system further includes a guidewire control device positioned on the device, configured to physically communicate with the pre-loaded guidewire and advance the pre-loaded guidewire longitudinally within the lumen. The pre-loaded guidewire includes an untriggered state and a triggered state. In the triggered state, the pre-loaded guidewire extends longitudinally within the lumen towards the distal tip of the device.