Reversible Ligation Clip With Elastic Unlocking Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional ligation devices are difficult to unlock without causing secondary damage to tissues, as the locking mechanism can only be destroyed by forceful separation, which may lead to re-bleeding or enlargement of the wound.
Innovation Solution
A ligation device comprising a clip and a limiting tube with a locking portion that can be unlocked using an unlocking portion, allowing for reversible ligation without causing additional tissue damage, featuring elastic locks, locking rings, and unlocking windows for secure and controlled release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional ligation device locking mechanism is used, then secure ligation is achieved, but the locking cannot be removed without damage and causes secondary tissue damage
Solution Approach 1:
The locking mechanism is divided into separate functional components: a locking portion on the clip and a corresponding locking position on the limiting tube. This segmentation allows the locking function to be independently controlled and reversed without affecting the overall clip structure or causing tissue damage.
Solution Approach 2:
The locking mechanism transitions from a static, permanent lock to a dynamic, reversible lock. The elastic lock component can bounce outward to engage the locking position and can be pushed inward to disengage, allowing the system to switch between locked and unlocked states without tissue damage.
2Ease of operation
If forceful separation is used to remove the locking, then the locking is removed, but violent destruction causes secondary damage to tissue or re-bleeding
Solution Approach 1:
The elastic lock is designed to be operable by the user through simple manipulation of the unlocking portion. The elastic component stores and releases energy to facilitate easy engagement and disengagement of the locking mechanism without requiring forceful separation or external tools that could damage tissue.
3Adaptability or versatility
If the clip portion is released after clamping tissue, then the clip can be removed, but the clip may clamp tissue firmly and forcing pull causes damage to clamped tissue and surrounding tissues
Solution Approach 1:
The locking mechanism is engaged before the clip is fully deployed or after the desired clamping time has elapsed. This preliminary locking action secures the clip in position during the critical hemostasis period, and the subsequent unlocking allows gentle release without the need for forceful extraction that could damage tissue.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure ligation without secondary tissue damage by allowing controlled unlocking and re-opening of the clip, ensuring the ligation device can be released without applying additional force to the tissue, maintaining hemostasis and facilitating endoscopic operations.
Implementation Method 1
The locking portion may be an elastic lock. When the elastic lock is locked with the locking position, the elastic lock may be locked with the locking position by bouncing outward from the accommodation channel.
Data Source
AI summary
The present disclosure relates to a ligation device, an unlocking method, and a ligation instrument. The ligation device may include a clip and a limiting tube. A distal end of the clip may be used for ligation. The limiting tube may be provided with an accommodation channel, and a proximal end of the clip may be connected with the accommodation channel, and the proximal end of the clip may move into or out of the limiting tube. The clip may be provided with a locking portion, and the limiting tube may be provided with a locking position that is matched with the locking position. When the locking portion is locked with the locking position, the locking portion may be unlocked from the locking position by operating the locking portion. Alternatively, the clip may be provided with an unlocking portion that is coupled with the locking portion. The locking portion may be unlocked from the locking position by operating the unlocking portion. The ligation device may be re-opened after being locked for ligation, causing no secondary damage to the ligated tissue.