C-Shaped Sheath Adapter for Endoscopic Fluid Management
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Solution Overview
Problem
Current endoscopic and hysteroscopic procedures for removing uterine fibroids face challenges with fluid management, as administered fluids can be absorbed into the body, leading to complications such as intravasation, which is undesirable and potentially life-threatening.
Innovation Solution
A sheath adapter system with a C-shaped elongate shaft and multiple lumens is designed to fit onto endoscopes or hysteroscopes, providing additional channels for fluid management, pressure monitoring, and device connections, allowing for secure attachment and flexible use of existing channels for other functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fluid is administered through the endoscope to distend the body cavity, then the working space is created, but fluid may be absorbed into the body causing intravasation
Solution Approach 1:
The fluid management system is divided into separate channels: a first lumen for fluid administration to distend the cavity and a second lumen for fluid evacuation. This segmentation allows independent control of fluid inflow and outflow, enabling creation of working space while simultaneously managing fluid absorption risks through the evacuation channel.
Solution Approach 2:
The sheath adapter acts as an intermediary device that connects to the endoscope and provides additional lumens. This intermediary structure enables multiple fluid management functions without modifying the original endoscope, serving as a bridge between the endoscope and fluid management system.
2Device complexity
If existing endoscope channels are used for fluid management, then the system is simple, but channels may be needed for other functions
Solution Approach 1:
The sheath adapter provides multiple lumens that can serve different functions simultaneously. The first lumen is configured for fluid administration while the second lumen can be used for fluid evacuation or other purposes. This multi-functionality ensures that existing endoscope channels remain available for their primary functions while the adapter handles fluid management tasks.
Solution Approach 2:
The sheath adapter is designed to fit over the endoscope shaft, with lumens nested within the adapter structure. This nesting arrangement allows the adapter to provide additional functional channels without increasing the overall profile significantly, maintaining system simplicity while enhancing versatility.
Data Source
AI summary
A sheath adapter may be used within a medical device to provide one or more additional lumens. One sheath for use with a medical device may comprise a C-shaped elongate shaft extending from a proximal end to a distal end, the C-shaped elongate shaft configured to fit onto a shaft of the medical device and a lumen extending at least partially along a length of the elongate shaft, the lumen having a first port disposed proximate the distal end of the C-shaped elongate shaft and a second port disposed proximate the proximal end of the C-shaped elongate shaft.