Compliant Over-the-Scope Clip With Dynamic Jaws for Tissue Closure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current endoscopic closure devices are difficult to use, time-consuming, and insufficient for certain perforations and anatomies, particularly over-the-scope clips, which may complicate aggressive interventional and therapeutic gastrointestinal procedures.
Innovation Solution
A compliant material-based clip system with a central body and jaws that can transition between insertion and deployment configurations, using a wire to control jaw movement, allowing precise positioning and locking onto tissue with a friction fit adapter on an endoscope.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If current endoscopic closure devices are used, then tissue closure can be achieved, but the devices are difficult to use and time-consuming to position
Solution Approach 1:
The clip is designed with dynamic jaws that can transition between an open insertion configuration and a closed deployment configuration. The jaws are movable relative to the clip body, allowing the distal ends to be positioned apart for tissue insertion and then drawn together for secure gripping, enabling easy and quick deployment without time-consuming positioning adjustments
Solution Approach 2:
The clip is pre-configured with the jaws in an open insertion configuration during manufacturing and storage. This preliminary positioning allows the clip to be readily inserted over the endoscope tip with jaws already prepared to receive tissue, eliminating the need for time-consuming on-site assembly or positioning adjustments
2Adaptability or versatility
If current endoscopic closure devices are used, then tissue closure can be achieved, but they are insufficient for certain perforations and anatomies
Solution Approach 1:
The movable jaws allow the clip to adapt to different tissue configurations and perforation types. The jaws can be opened wide for larger tissue defects and closed securely for smaller perforations, providing versatility across different anatomical structures and injury types while maintaining reliable closure through the spring-loaded gripping mechanism
Solution Approach 2:
The clip design allows for parameter changes in jaw separation distance and gripping force to accommodate different tissue types and perforation sizes. The spring mechanism enables adjustable gripping strength, and the jaw geometry can be modified to match different anatomical contours, enhancing both adaptability and reliability across diverse clinical scenarios
3Stability of the object's composition
If a rigid clip structure is used, then structural stability is maintained, but the clip cannot transition between insertion and deployment configurations
Solution Approach 1:
The clip is segmented into distinct functional components: a stable clip body that maintains structural integrity during storage and insertion, and movable jaws that can transition between configurations. The jaws are separated from the body by a spring mechanism, allowing independent movement while maintaining overall structural stability through the rigid body framework
Solution Approach 2:
The clip incorporates dynamic elements within an otherwise stable structure. The spring-loaded jaws can move between open and closed positions while the clip body remains structurally stable. This segmentation allows the rigid body to maintain stability during insertion while the movable jaws provide the necessary dynamic transition for deployment
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
Facilitates efficient and precise closure of tissue defects by enabling visual adjustment and secure locking without rotating during endoscope removal, reducing procedural complexity and improving anatomical adaptability.
Implementation Method 1
a spring configured to move the jaws between the insertion configuration and the deployed configuration
Implementation Method 2
friction fit adapter on an endoscope
Data Source
Figure 1~2B
Figure 3A~3B
Figure 3C
AI summary
A clipping system includes an adapter and a clip. The adapter is mounted over a distal end of an insertion device to a distal end and has a first annular groove formed in a distal face of the adapter. The clip has a body; a central body having a coupling portion and a ring; and jaws having outer arms coupled to the body at an outer arm proximal end and inner arms disposed radially inward of the outer arms and coupled to the ring at an inner arm proximal end. The body includes an annular protrusion extending proximally from a proximal surface of the body. The protrusion is inserted into the first groove of the adapter to couple the clip to the adapter. Movement of the central body along an axis of the clip causes movement of the jaws between an insertion configuration and a deployment configuration.