Endoscope Tissue Engaging Portion for Wound Closure
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Solution Overview
Problem
Tissue defects or wounds resulting from endoscopic procedures like EMR or ESD can be difficult to close and may take a long time to heal, increasing the risk of infection.
Innovation Solution
An endoscopic device with a tissue engaging portion that includes a tissue acquisition assembly and a tissue closure assembly, featuring prongs, rollers, and a suction channel to grasp and close the tissue by forming a wavy overlapping seam and using fasteners or staples to secure the closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional endoscopic procedures are used to create tissue defects, then diagnostic or therapeutic goals are achieved, but the resulting large tissue openings are difficult to close and take prolonged time to heal
Solution Approach 1:
The patent combines tissue acquisition, manipulation, and closure functions into a single integrated endoscopic device. The tissue engaging portion integrates a tissue acquisition assembly with a tissue closure assembly, allowing both tissue resection and subsequent closure to be performed through the same device, thereby enabling precise closure of large tissue openings while reducing healing time
Solution Approach 2:
The patent introduces an intermediary mechanism (the tissue closure assembly with needle and fastener) that mediates the closure process. The needle delivers fasteners through the tissue opening, and the tissue grasping portion manipulates tissue edges to form overlapping seams, serving as intermediaries that enable precise and rapid closure of large defects
2Reliability
If traditional endoscopic procedures are used to create tissue defects, then diagnostic or therapeutic goals are achieved, but the risk of infection increases due to prolonged open wound state
Solution Approach 1:
The patent performs preliminary action by preparing the tissue edges before closure. The tissue grasping portion pre-manipulates the tissue edges to form overlapping seams, and the closure assembly is positioned and ready before actual fastening occurs. This preliminary preparation enables rapid closure that immediately reduces infection risk
Solution Approach 2:
By merging tissue acquisition and closure functions in one device, the patent enables immediate transition from tissue resection to closure, minimizing the time the wound remains open and thereby reducing infection risk
3Productivity
If separate devices are used for tissue resection and closure, then each function can be optimized, but the overall procedure complexity and time increase
Solution Approach 1:
The endoscope is designed with multi-functionality, serving both as a tissue resection device and a tissue closure device. The tissue engaging portion at the distal end integrates both acquisition and closure capabilities, allowing a single device to perform multiple functions that would traditionally require separate devices, thereby improving procedure efficiency
Solution Approach 2:
The patent merges multiple functions (tissue resection, tissue manipulation, and tissue closure) into a single integrated device. The tissue engaging portion combines the tissue acquisition assembly with the tissue closure assembly, reducing the number of devices needed while maintaining functional optimization through careful design of each integrated component
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 closure of tissue openings, reducing the risk of infection and promoting faster healing by effectively grasping and securing the target tissue portions using integrated mechanical and suction-based mechanisms.
Implementation Method 1
the first control element can include a suction channel to apply suction to the chamber. When the chamber overlies the opening in the target tissue, the suction may draw the first and second target tissue portions into the chamber, pressing the first and second target tissue portions together
Implementation Method 2
The first and second rollers can be rotatable in opposite directions to cause the first and second target tissue portions to be drawn between the first and second rollers to press the first and second target tissue portions together. The first and second rollers can include a roughened, spiked or adhesive surface.
Data Source
AI summary
A tissue closure system includes an endoscope having first and second lumens therethrough, first and second control elements disposed within the first and second lumens, respectively, and a tissue engaging portion integral with a distal end of the endoscope. The tissue engaging portion includes a tissue acquisition assembly and a tissue closure assembly. The tissue acquisition assembly is controllable via the first control element, and the tissue closure assembly controllable via the second control element. The tissue engaging portion includes a tissue grasping portion for engaging first and second target tissue portions disposed adjacent an opening in target tissue. The tissue closure assembly is configured to pierce the target tissue, and to hold the first and second target tissue portions together to close the opening in the target tissue.