Endoscope having pipe connection structure and producing method thereof
Number of patents in Portfolio can not be more than 2000
United States of America
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Oct 8, 2019
Grant Date -
Aug 10, 2017
app pub date -
Apr 25, 2017
filing date -
Apr 25, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
An endoscope having a pipe connection structure includes a pipe of a corrosion-resistant alloy material and a piping block of a corrosion-resistant alloy material, the piping block having a pipe insertion hole. An end of the pipe is fitted in the pipe insertion hole, the pipe and the piping block are connected by welding by irradiating a laser beam on the entire circumference of an area where the end of the pipe is fitted in the pipe insertion hole in the piping block, and an axial length of the pipe inserted in the pipe insertion hole is in a range of 0.5 to 2 times a wall thickness of the pipe.
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