| CPC A61B 34/20 (2016.02) [A61B 1/00055 (2013.01); A61B 1/018 (2013.01); A61B 1/273 (2013.01); A61B 5/062 (2013.01); A61B 2034/2051 (2016.02)] | 2 Claims | 

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               1. A digestive organ endoscope system comprising: 
            an endoscope instrument that is configured to be inserted into a digestive organ of a patient and observes or treats an inside of the digestive organ; 
                an endoscope channel portion in which a channel through which the endoscope instrument moves is formed; and 
                a sensing portion that informs a user whether or not a tip of the endoscope instrument approaches a tip of the endoscope channel portion at a set distance or less, 
                wherein the sensing portion includes a plurality of tags that generate magnetism, wherein each of the plurality of tags is formed at a position corresponding to an inlet of the channel of the endoscope channel portion when the tip of the endoscope instrument is at positions of a first predetermined distance, a second predetermined distance, a third predetermined distance, a fourth predetermined distance, and a fifth predetermined distance before reaching the tip of the endoscope channel, 
                wherein the plurality of tags are formed by gradually reducing intervals therebetween in inverse proportion to a reaching distance, 
                wherein a detector generates an alarm sound corresponding to the reaching distance as the tip of the endoscope instrument approaches to the tip of the endoscope channel portion at a set distance. 
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