Pipe connection structure in endoscope and producing method thereof
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United States of America Patent
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May 30, 2017
Issued Date -
N/A
app pub date -
Jan 16, 2009
filing date -
Jan 18, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A pipe connection structure for an endoscope is provided with a pipe made of a corrosion-resistant alloy material, and a piping block made 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 and 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 hole formed on the piping block. 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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