Laser welding of disc to close needle end
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United States of America Patent
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Dec 15, 2015
Grant Date -
Sep 20, 2012
app pub date -
Mar 14, 2012
filing date -
Mar 15, 2011
priority date (Note) -
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Abstract
A cutting apparatus has a handle and a hollow needle having a first end connected to the handle and a second end. The needle outer diameter is about 0.04 inch or less. An end cap is formed from a blank material. Preferably, at least one bridge is formed between the end cap and the blank material. The end cap is welded to the second end to enclose the needle and then the bridge is cut. The end cap has substantially flat inner and outer surfaces. The needle has a port and a hollow cutter that slides within the needle. The cutter has a first end connected to a drive, and a second end having a cutting edge. An outer cutter diameter is less than the needle inner diameter. The drive reciprocates the cutter within the needle to perform a cut.
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