Segmented Gastric Sizing Tube for Resection Guidance
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Solution Overview
Problem
Existing bariatric surgery instruments lack integration of multiple functions necessary for a seamless sleeve gastrectomy procedure, including providing a clear visual indication of the resection line and preventing the instrument from becoming stuck in the stomach.
Innovation Solution
A gastric sizing tube with a flexible design and a plurality of apertures along its length, which can be coupled to a source of suction to drain gastric fluids, hold the tube in place, and provide a visually perceptible delineation line for resection guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a Bougie tube is used to guide stomach resection, then the resection line can be indicated, but the instrument may become stuck in the stomach
Solution Approach 1:
The Bougie tube is divided into multiple segments with alternating orientations. Each segment can rotate independently, allowing the tube to navigate the stomach curvature without becoming stuck while maintaining the continuous delineation line for resection guidance.
Solution Approach 2:
The Bougie tube incorporates rotational capability, allowing it to change its orientation dynamically within the stomach. This dynamic property enables the tube to adapt to the stomach's three-dimensional structure, preventing it from becoming stuck while maintaining its function as a resection guide.
2Productivity
If multiple functions are integrated into one device, then the procedure becomes more efficient, but the device complexity increases
Solution Approach 1:
Multiple functions including resection guidance, stomach decompression, and sizing are merged into a single integrated device. The Bougie tube simultaneously provides a delineation line for resection, can be coupled to a suction source for decompression, and serves as a sizing reference, eliminating the need for multiple separate instruments.
Solution Approach 2:
The Bougie tube is designed as a universal instrument that performs multiple functions: it guides the resection line, enables stomach decompression when coupled to suction, and provides sizing reference. This multi-functionality streamlines the surgical procedure by reducing the number of separate tools required.
3Productivity
If suction is applied to drain gastric fluids, then the stomach can be decompressed, but the instrument may become stuck in the stomach
Solution Approach 1:
The Bougie tube is segmented into multiple sections with alternating orientations, allowing it to flex and rotate within the stomach during suction application. This segmentation prevents the tube from becoming stuck while maintaining its position for effective decompression.
Solution Approach 2:
The Bougie tube's rotational capability allows it to dynamically adjust its position within the stomach during suction. This dynamic property enables the tube to maintain optimal positioning for decompression while preventing it from becoming stuck in the gastric wall.
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 solution enables efficient sizing and resection of the stomach by providing a clear delineation line and preventing the instrument from becoming stuck, thereby facilitating accurate surgical procedures and minimizing complications.
Implementation Method 1
The sizing tube is arranged to be coupled to a source of suction, whereupon controlled suction is applied to the hollow interior of the sizing tube to effect the drainage of gastric fluids from the patient's stomach through at least some of the apertures of the array of apertures
Data Source
AI summary
Systems and methods for effecting bariatric procedures are disclosed. Each system includes an instrument, a control valve and, optionally, a suction controller. The instrument is in the form of an elongated, flexible sizing tube having a distal end portion including a plurality of apertures. The control valve enables suction to be applied to the patient's stomach via the apertures to drain gastric fluids and to bring adjacent portions of the patient's stomach into engagement the sizing tube to provide a visually perceptible delineation line along which a portion of the stomach may be resected, sealed and tested.