Occluder Pushing Device Locking Mechanism for Accurate Release
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing occluder pushing devices can cause inaccurate release positions due to accidental contact during interventional medical procedures, leading to operation failures.
Innovation Solution
An occluder pushing device with a pushing tube and traction element, featuring a handle with a translation and rotation mechanism, and a locking component to maintain relative positions, preventing accidental release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flexible pushing component is used to deliver the occluder, then the occluder can be delivered to the preset location, but the pushing device may accidentally release the occluder due to contact, resulting in inaccurate release position
Solution Approach 1:
The locking component is designed to automatically lock the traction element and pushing tube in a predetermined locked state before the occluder is delivered to the preset location. This preliminary locking action prevents accidental release during the delivery process, ensuring accurate release position while maintaining ease of operation through the automated locking mechanism
Solution Approach 2:
The locking component acts as an intermediary between the traction element and the pushing tube, providing a reliable connection that prevents accidental release. This intermediary mechanism ensures that the occluder remains securely attached during delivery while allowing controlled release when needed, thus improving both reliability and ease of operation
2Reliability
If the pushing device is designed with a locking component to prevent accidental release, then release position accuracy is improved, but the device complexity increases
Solution Approach 1:
The locking component is merged with the existing pushing device structure, combining the locking function with the delivery mechanism. This integration approach provides reliable release position accuracy while minimizing the increase in device complexity by utilizing the existing structural elements for the locking function
Solution Approach 2:
The locking component is designed to automatically lock and unlock without requiring additional complex control systems. The self-locking mechanism utilizes the natural movement and positioning of the traction element and pushing tube to engage and disengage the locking function, thereby improving reliability while keeping the device complexity manageable
Data Source
AI summary
The present disclosure relates to an occluder pushing device and an occluder delivery system, wherein the pushing device includes a pushing component and a handle. The pushing component includes a pushing tube and a traction element slidably inserted into the pushing tube. The handle is fixedly connected to a proximal end of the pushing tube and internally provided with a moving component and a locking component. The moving component includes a translation mechanism and a rotation mechanism, where the translation mechanism is used to drive the traction element to move axially inside the pushing tube, and the rotation mechanism is used to drive the traction element to rotate axially inside the pushing tube. The locking component is used to lock relative positions of the traction element and the pushing tube, and the rotation mechanism includes a locking structure for locking or releasing linkage between the rotation mechanism and the traction element. The pushing device of the present invention has provided therein the locking component for locking the traction element and the pushing tube in relative positions, such that when the pushing tube pushes the occluder, the relative positions of the traction element and the pushing tube lock the occluder in a folded state, thereby preventing the occluder from being prematurely released before reaching a pre-determined position.