Method of connecting pipe members for endoscope

Details Method of connecting pipe members for endoscope Method of connecting pipe members for endoscope

2009-01-23

2011-11-08

Elve, M. Alexandra (Department: 3742)

Electric heating

Metal heating

By arc

C219S121630, C219S121840

Reexamination Certificate

active

08053702

ABSTRACT:
A method for connecting pipe members for an endoscope includes the steps of arranging two pipe members each made of a corrosion-resistant alloy material by fitting one in another so that a passage is defined through the two pipe members, jetting inert gas toward an exterior of an area at which the two pipe members are to be connected, injecting inert gas through the passage defined through the two pipe members, and connecting the two pipes by laser welding such that a laser beam is irradiated toward the exterior of the area at which the two pipe members are to be connected with jetting the inert gas toward the exterior of the area at which the two pipe members are to be connected and injecting the inert gas through the passage defined by through the two pipe members.

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English language Abstract of JP 2003-33320, Feb. 4, 2003.
U.S. Appl. No. 12/354,910, filed on Jan. 16, 2009.

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