Tissue Gripping Ring with Barbed Members for Anti-Slip
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Solution Overview
Problem
Existing methods for securing tissue, such as in diverticulosis, face issues with slippage due to significant peristalsis and pressure in the colon and bowel, which can force the securing ring off the tissue, leading to a loss of therapeutic effect.
Innovation Solution
A tissue gripping ring with a round resilient body and elongated axially rigid gripping members that extend diametrically across the through-opening, featuring barbed or hook-like structures to prevent slippage, and a method for configuring the ring to surroundingly grip tissue by stretching and locking onto a delivery device for secure placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple ring is used to secure tissue, then the device is easy to manufacture and apply, but the ring can slip off the tissue due to peristalsis and pressure
Solution Approach 1:
The ring is segmented by incorporating discrete gripping members (barbs, hooks, or interlocking spikes) that can independently engage with the tissue surface. This segmentation allows the ring to maintain its simple overall structure while adding localized gripping features that prevent slippage without requiring complete redesign of the entire ring structure.
Solution Approach 2:
The gripping members act as intermediary elements between the ring and the tissue. These intermediate structures (barbs projecting from the ring surface, hooks, or interlocking spike pairs) provide the mechanical engagement necessary to prevent slippage, while the ring itself remains a simple resilient structure that is easy to manufacture and apply.
2Reliability
If gripping members are added to prevent slippage, then the anti-slip reliability is improved, but the device complexity increases
Solution Approach 1:
Instead of making the entire ring complex, the gripping members are added only at specific locations where tissue engagement is needed. The barbs, hooks, or spikes are localized features on the ring surface, allowing the majority of the ring structure to remain simple and resilient, thus minimizing the increase in overall device complexity.
Solution Approach 2:
Rather than trying to make the ring itself complex to achieve gripping, the invention inverts the approach by adding simple protruding elements (barbs or hooks) to a simple ring. Alternatively, instead of adding features to the ring, the solution uses interlocking spikes that pass through the ring - turning the problem of adding complexity to the ring into adding simplicity to the gripping mechanism.
3Ease of operation
If the ring is made resilient to accommodate tissue, then the ease of application is improved, but the stability under pressure decreases
Solution Approach 1:
The ring is designed with dynamic characteristics - it is resilient and can deform to accommodate tissue placement, but the gripping members provide static engagement points that maintain stability under pressure. The barbs, hooks, or interlocking spikes remain fixed relative to the ring structure, providing stable anchoring while the ring itself dynamically adapts to tissue shape and movement.
Solution Approach 2:
The gripping members are pre-configured on the ring in specific orientations and positions before application. The barbs project outward, hooks are pre-formed, or spikes are positioned to interlock, so that when the ring is applied to the tissue, the gripping engagement occurs automatically without requiring additional adjustment or complex stabilization mechanisms during operation.
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
The ring effectively secures tissue by preventing slippage through interlocking gripping members, maintaining the therapeutic effect even under tissue pressure and movement.
Implementation Method 1
a ring for engaging tissue has a round resilient body defining an axial through-opening
Data Source
AI summary
A compression ring to grip and compress body structure such as diverticulum, hemorrhoids, and tissue adjacent a hole. A resilient ring-shaped body defines a compression channel, and an elongated axially rigid gripping member extends diametrically across the through-opening. The gripping member can rest on a flange on the opposite side of the through-opening or engage with a second gripping member that extends diametrically across the through-opening from the opposite side of the ring. Or, a flexible cage structure can be disposed in the through-opening.