Capsule Endoscope String Fixation for Gastric Cardia Positioning
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Solution Overview
Problem
Conventional methods for monitoring bleeding inside the stomach are uncomfortable for patients and ineffective in detecting minor bleeding, as they require invasive tube insertion and are not suitable for stable placement within the stomach.
Innovation Solution
An in-vivo information acquiring apparatus comprising a swallowable capsule endoscope with a string member that includes a fixing portion to secure the device at the gastric cardia, allowing for wireless monitoring and easy retrieval, using a combination of a string member with an extracorporeal gripper, marked portion, and cutting mechanism for stable placement and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tube is inserted from the stomach to the nose or mouth for monitoring bleeding, then bleeding can be monitored, but patient discomfort increases and minor bleeding cannot be detected
Solution Approach 1:
The patent replaces the conventional mechanical tube insertion method with a swallowable capsule endoscope that uses wireless imaging technology. The capsule captures images of the stomach interior and transmits them wirelessly to an external receiver, eliminating the need for invasive tube placement while maintaining bleeding detection capability and significantly reducing patient discomfort.
2Ease of operation
If a sensor capsule is placed at the pyloric region for monitoring, then the capsule can be positioned, but the monitored region is limited and monitoring stability is poor
Solution Approach 1:
The patent employs a dynamic positioning system where the capsule endoscope can be actively moved and repositioned within the stomach using a control mechanism. The capsule includes a propulsion system that allows it to navigate to optimal viewing positions and maintain stable imaging of the gastric cardia and other regions, overcoming the limitations of fixed-position sensor capsules.
3Reliability
If a medical capsule is fixed by clipping body tissue, then the capsule can be secured, but the placement position is difficult to set and surgical complexity increases
Solution Approach 1:
The patent introduces a string member as an intermediary element that connects the capsule endoscope to the gastric cardia. The string member can be easily manipulated and secured without requiring complex clipping procedures. This intermediary simplifies the fixation process, allowing stable capsule positioning while reducing surgical complexity and avoiding the need for intricate tissue clipping operations.
Data Source
AI summary
To stably and properly monitor an inside of a body by using an easily operable placement technique, a capsule endoscope 101 to be swallowed from an oral cavity 200 to acquire in-vivo information of a subject 201 and to wirelessly output for a transmission of the in-vivo information to an outside of a body, a string member 103 that is connected to the capsule endoscope 101 for positioning the capsule endoscope 101 at a gastric cardia 202, and a fixing portion 104 that is a portion of the string member 103, is provided on a position with which a length from the capsule endoscope 101 corresponds to a length from the gastric cardia 202 to the inside of an esophageal region 203 for fixing the string member 103 that has located the capsule endoscope 101 at the gastric cardia 202 to the inside of the esophageal region 203 by an endoscopic fixture are included. As a result, the capsule endoscope 101 is placed at a position of the gastric cardia 202 where an entire inside of the stomach is easily inspected, and the capsule endoscope 101 itself can easily be placed inside the esophageal region by using the fixing portion 104.