Unlockable Hemostatic Clip Structure for Atraumatic Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hemostatic clips require violent destruction for unlocking, leading to secondary tissue injury and re-bleeding due to their locked state being irreversible.
Innovation Solution
A clip device with a switchable locked and unlocked state, featuring a clip and storage tube with a locking portion that can be released through deformation, breakage, or displacement, allowing the clip to reopen without damaging the tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the clip device is locked to provide reliable hemostasis, then the reliability of bleeding control is improved, but the ease of operation for removal deteriorates as violent destruction is required
Solution Approach 1:
The locking portion is designed to transition from a fixed locked state to a movable unlocked state through controlled deformation or displacement. The locking portion can be deformed by external forces (such as a disassembly device) to release the cooperation relationship with the locked portion, enabling dynamic state change from locked to unlocked without violent destruction.
2Reliability
If the locking relationship is made irreversible to ensure secure clamping, then the reliability of tissue clamping is improved, but the harmful factors increase due to secondary tissue injury from forced separation
Solution Approach 1:
The locking portion is designed to be temporarily discarded (deformed or displaced) to enable clip removal. After the clip serves its hemostatic function, the locking portion can be controlled to release from the locked state, allowing the clip to be removed without forcing the tissue apart, thus recovering the tissue from potential injury.
3Ease of manufacture
If a simple locking structure is used to reduce device complexity, then the ease of manufacture is improved, but the reliability of the locking mechanism deteriorates as it cannot provide controlled unlocking
Solution Approach 1:
The locking mechanism is segmented into distinct components: a locking portion on the storage tube and a locked portion on the clip. This segmentation allows each component to be independently designed and manufactured with simple structures, while their cooperation relationship provides the reliable controlled locking and unlocking function.
Data Source
AI summary
The present disclosure provides a clip device. The clip device may include a clip and a storage tube. The clip may include clip arms including a first clip arm and a second clip arm; the storage tube including a channel, a proximal end of the first clip arm, and a proximal end of the second clip arm being stowable within the channel; the clip being capable of being switched from a locked state to an unlocked state; wherein in the locked state, the distal end of the first clip arm and the distal end of the second clip arm are closed and the storage tube restricts a movement of the clip relative to the storage tube toward the distal end of the first clip arm and the distal end of the second clip arm; in the unlocked state, a movement restriction of the clip by the storage tube is released and the distal end of the first clip arm and the distal end of the second clip arm are able to be reopened.