Serosa-to-Serosa Closure Device for Bodily Opening Sealing
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Solution Overview
Problem
Existing methods for closing bodily openings, such as hernias or translumenal procedure openings, face challenges in effectively sealing the openings due to difficulty in manual suturing techniques, which can lead to leakage and are time-consuming and unreliable.
Innovation Solution
The use of a tissue retraction member, such as a balloon catheter or tacking device, to bring serosal tissue regions into an adjacent relationship, followed by deployment of a closure member like elastic rings or a snare to apply compressive force for sealing, facilitated by an endoscope and end cap system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual suturing techniques are used to close bodily openings, then the opening can be sealed, but the procedure is time-consuming and difficult to perform
Solution Approach 1:
The patent replaces manual mechanical suturing with a mechanical closure device that uses elastic rings and tissue retraction members to automatically close the opening. The device mechanically draws serosal tissue edges together and secures them without requiring manual needle threading and knot tying, thereby reducing procedure time while maintaining sealing effectiveness
Solution Approach 2:
The patent introduces a closure device with tissue retraction members and elastic rings as an intermediary mechanism between the tissue edges. This intermediary device facilitates the closing process by mechanically drawing tissue edges together and maintaining apposition, eliminating the need for time-consuming manual suturing while ensuring reliable sealing
2Reliability
If manual suturing techniques are used to close bodily openings, then the opening can be sealed, but the technique is unreliable and difficult to reproduce
Solution Approach 1:
The patent replaces the complex manual suturing technique with a standardized mechanical closure device. The device incorporates pre-configured tissue retraction members and elastic rings that automatically engage and secure tissue edges, making the procedure easier to perform and more reproducible across different practitioners while maintaining reliable sealing
Solution Approach 2:
The closure device performs the closing function automatically once deployed. The tissue retraction members self-expand to engage tissue edges, and the elastic rings automatically cinch down to secure the closure, reducing the skill level and time required for the operator while ensuring consistent, reproducible results
3Reliability
If graft material is used to cover perforations, then the opening can be sealed, but manual suturing to secure the graft is time-consuming
Solution Approach 1:
The patent extracts the time-consuming manual suturing step by using a closure device that mechanically secures tissue edges directly without requiring separate graft material placement and suturing. The elastic rings and tissue retraction members provide inherent tissue anchoring and securing functions, eliminating the need for additional graft-related suturing procedures
Solution Approach 2:
The patent merges the functions of tissue approximation, anchoring, and securing into a single closure device. The tissue retraction members and elastic rings work together to simultaneously draw tissue edges together and secure them in apposition, eliminating the need for separate graft material placement and multiple suturing steps required by traditional methods
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
This method enhances the sealing of bodily openings by achieving serosa-to-serosa contact, promoting effective closure and healing, while reducing the complexity and time required for the procedure.
Implementation Method 1
The tissue retraction member is advanced in a distal direction through the bodily opening in a contracted state, and then expanded at a location distal to the opening
Implementation Method 2
the closure member imposes a compressive force to hold the first serosal tissue region in a sealing relationship against the second serosal tissue region
Data Source
AI summary
The present embodiments provide apparatus and methods for facilitating closure of a bodily opening. In one embodiment, a tissue retraction member and a closure member are provided. The tissue retraction member is advanced in a distal direction through the bodily opening in a contracted state, and then expanded at a location distal to the opening. The tissue retraction member then is proximally retracted to engage first and second serosal tissue regions at least partially surrounding the opening, thereby causing the first and second serosal regions to be disposed in an adjacent relationship. The closure member then is deployed around first and second mucosal tissue regions, such that when deployed, the closure member imposes a compressive force to hold the first serosal tissue region in a sealing relationship against the second serosal tissue region to facilitate sealing of the opening.