Endoscopic Anastomosis Clamp Release Assembly for Atraumatic Removal
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Solution Overview
Problem
Existing anastomosis clamps are difficult to release from tissue, requiring high operational proficiency and can cause tissue damage, and their transparent caps are oversized, causing patient discomfort.
Innovation Solution
A fetching assembly with a fetching cap and hook, and a releasing assembly with a transparent loading cap and push rod, both designed for use with an endoscope, facilitate easy release and reduce cap size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the anastomosis clamp is firmly assembled on the transparent cap to prevent it from getting off, then the clamp stability is improved, but the release operation becomes difficult and may fail
Solution Approach 1:
The transparent cap is divided into a cap body and a separate release string system. The release string passes through the cap body and connects to the anastomosis clamp, allowing the clamp to be released by pulling the string without directly manipulating the clamp itself. This segmentation enables easy release while maintaining stable assembly during surgery.
Solution Approach 2:
The release string acts as an intermediary between the operator and the anastomosis clamp. Instead of directly grasping and removing the clamp from tissue, the operator pulls the release string which transmits force to the clamp through the cap body, facilitating easy release without direct manipulation of the clamp.
2Object-affected harmful factors
If the transparent cap size is reduced to improve patient comfort, then the patient comfort is improved, but the clamp may become loose and difficult to control
Solution Approach 1:
The release string is pre-installed through the cap body and connected to the anastomosis clamp before surgery begins. The string is routed through slots in the cap body to ensure proper tension and positioning. This preliminary setup allows the cap to be smaller while maintaining clamp stability through the pre-configured string attachment system.
Solution Approach 2:
The cap body is designed with specific local features including slots for the release string and a textured surface for friction. These localized quality enhancements provide sufficient grip and stability for the clamp assembly even when the overall cap size is reduced, balancing patient comfort with operational control.
3Reliability
If the anastomosis clamp is designed to firmly clamp tissue for reliable hemostasis, then the hemostasis effectiveness is improved, but the clamp becomes difficult to release and may cause tissue damage
Solution Approach 1:
The release string serves as an intermediary mechanism that decouples the clamping function from the release function. The clamp maintains firm grip on tissue for effective hemostasis, while the string provides a separate, easy-release mechanism that transmits pulling force to open the clamp without requiring direct manipulation of the clamped tissue.
Solution Approach 2:
The system is segmented into the clamp body (for hemostasis), the cap body (for positioning), and the release string (for easy removal). This segmentation allows the clamp to perform its hemostatic function reliably while the string provides a simple release mechanism that prevents tissue damage during removal.
4Ease of operation
If the fetching hook is designed to easily hook the fetching thread for simple release operation, then the ease of operation is improved, but the hook structure becomes more complex
Solution Approach 1:
Instead of designing a complex gripping mechanism to grasp the clamp, the fetching hook is designed with a simple inverted approach: a hook-shaped structure that naturally engages with the fetching thread's loop. This inversion simplifies the hook structure while maintaining easy operation, as the hook merely needs to catch the thread rather than grasp the clamp directly.
Data Source
AI summary
The present disclosure provides a releasing assembly for an anastomosis clamp. The releasing assembly is configured to be used in cooperation with an endoscope and to release the anastomosis clamp by use of the endoscope to clamp a target tissue. The releasing assembly includes a transparent loading cap and a push rod. The anastomosis clamp is configured to be sleeved on a front end of the transparent loading cap, the transparent loading cap is penetrated therethrough along a central axis in a longitudinal direction thereof, the transparent loading cap is provided with a supporting part, the supporting part is provided with a push hole penetrating therethrough in an axial direction, the push rod is configured to pass through the push hole and to move in the axial direction of the push hole to allow one end of the push rod to abut against a rear end of the anastomosis clamp.