Expandable Suture Passer Guide for Endoscopic Port Insertion
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Solution Overview
Problem
Current suture passer guides require removal of the endoscopic port before insertion, leading to tissue damage, increased procedure time, and loss of pneumoperitoneum, as they need to be directly inserted into the port site wound, which complicates wound closure and maintenance of surgical cavity pressure.
Innovation Solution
A suture passer guide with an expandable member that can be inserted through the endoscopic port, allowing it to expand within the surgical cavity, maintaining pressure and facilitating suture placement without direct wound insertion, featuring guide passages for optimal suture placement and self-sealing plugs to prevent gas leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the suture passer guide is directly inserted into the port site wound, then the guide can be positioned for suture placement, but tissue damage occurs and wound closure becomes complicated
Solution Approach 1:
The endoscopic port serves as an intermediary device through which the suture passer guide is inserted. Instead of directly inserting the guide into the wound, the port acts as a mediator that facilitates guide insertion while protecting the wound from direct trauma and simplifying subsequent closure procedures
2Ease of operation
If the endoscopic port is removed before guide insertion, then the guide can be inserted into the wound, but procedure time increases and pneumoperitoneum is lost
Solution Approach 1:
The suture passer guide is designed with features that enable it to be inserted through the endoscopic port while the port is still in place. This preliminary arrangement allows the guide to be positioned before port removal, eliminating the need to remove the port first and thereby reducing procedure time and maintaining pneumoperitoneum
3Ease of operation
If the endoscopic port is removed before guide insertion, then the guide can be inserted into the wound, but maintenance of surgical cavity pressure is compromised
Solution Approach 1:
The guide is inserted through the endoscopic port while the port remains in place, maintaining the seal and surgical cavity pressure. This preliminary insertion method allows the guide to be positioned without compromising pneumoperitoneum, and the port can be removed afterward while the guide remains securely in position
Data Source
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AI summary
A suture passer guide (108) that includes an elongate member having a longitudinal axis and defining a first proximal opening (120, 122, 128, 130) and a first distal opening (124, 126, 132, 134). The first proximal and distal openings are substantially aligned with one another such that a suture passer can be extended through the first proximal and distal openings at an acute angle relative to the longitudinal axis of the elongate member. The suture passer guide can be configured to be passed through a central lumen of an endoscopic port and comprises anexpandable member (116) connected to the dista nd of theelongate member.