Implantable Tissue Connector With Bulge-Ring Anti-Slippage
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Solution Overview
Problem
Connecting the end of the human's large bowel to an artificial exit or connecting a shortened large bowel to the patient's natural intestinal exit is difficult and often unreliable, leading to leakage, prohibited blood circulation, and potential failure due to continuous peristaltic movement.
Innovation Solution
An implantable tissue connector with a conduit having bulges and blocking rings to secure tubular living tissue, preventing slippage by compressing the tissue between the bulge and the blocking ring, ensuring reliable connection without harming the tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connection is made tight to prevent leakage, then reliability is improved, but blood circulation is prohibited in the end area of the bowel tissue
Solution Approach 1:
The invention applies different properties to different parts of the connector. The bulge portion provides localized compression to prevent slippage, while the blocking ring provides a stop mechanism. This localized approach prevents excessive compression that would prohibit blood circulation, while still achieving reliable connection through the combination of these localized features.
Solution Approach 2:
The connector design allows for dynamic adjustment of compression forces. The bulge and blocking ring configuration enables the system to adapt to tissue movement and peristaltic forces without requiring continuous high compression that would harm blood circulation. The clearance between components allows for controlled movement while maintaining connection integrity.
2Reliability
If the connection is made secure to prevent slippage, then reliability is improved, but the peristaltic movement of the bowel causes continuous stress on the connection
Solution Approach 1:
The connector is divided into functional segments: the bulge portion for compression, the blocking ring for stopping slippage, and the clearance for tissue movement. This segmentation allows each component to handle specific stresses from peristalsis independently, maintaining overall connection stability without requiring the entire structure to be rigid.
Solution Approach 2:
The clearance between the blocking ring and conduit acts as an intermediary space that accommodates tissue movement and peristaltic forces. This intermediate zone allows the connection to remain secure while absorbing the continuous stress from bowel peristalsis without transmitting excessive forces to the tissue.
3Reliability
If a blocking ring is fitted tightly to prevent tissue slippage, then connection reliability is improved, but the tissue may be compressed excessively affecting blood circulation
Solution Approach 1:
The blocking ring is designed with a clearance that allows for partial movement and tissue compliance. This partial action approach prevents excessive compression that would harm tissue blood circulation, while still providing sufficient friction and mechanical interlocking through the bulge to prevent slippage under normal physiological conditions.
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 connector provides a reliable and secure connection that minimizes blood circulation disruption while maintaining tissue integrity over time, preventing slippage and leakage.
Implementation Method 1
the living tissue will be compressed between the bulge and the blocking ring, thereby preventing any further slippage
Data Source
AI summary
An implantable tissue connector comprises a conduit and at least one bulge extending outwardly from the conduit's outer surface in a circumferential direction. At least one blocking ring loosely fitting over the outer surface with a clearance between the outer surface and the blocking ring is provided for mounting tubular living tissue within the clearance. The blocking ring has an inner diameter which is sized relative to an outer diameter of the bulge to prevent the blocking ring from slipping over the bulge when living tissue is mounted within the clearance. During implantation, the conduit is inserted into the tubular part of living tissue and over the bulge. Then, the blocking ring is pushed over the free end of the living tissue against the bulge. The living tissue is secured to the conduit with a self-enhancing effect when the tissue tends to be pulled off of the conduit.