Medical puncture needle and method for manufacturing puncture needle
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United States of America Patent
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Jun 16, 2020
Grant Date -
Sep 28, 2017
app pub date -
Mar 27, 2017
filing date -
Mar 28, 2016
priority date (Note) -
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Abstract
A medical puncture needle includes a rod-shaped main body portion; and a blade surface formed at a distal end portion of the main body portion. The blade surface includes a first blade surface portion and a second blade surface portion that intersect to form a blade edge. A needle tip is formed at a location at which a distal end of the blade edge intersects a first ridge line at an outer edge of the first blade surface and a second ridge line at an outer edge of the second blade surface. At least one of the blade surface portions is planar, and, in a central axis direction of the main body portion, said at least one blade surface portion extends to a location proximal of a middle position of a blade surface region in which the blade surface is formed.
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