DILATOR
Number of patents in Portfolio can not be more than 2000
United States of America
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N/A
Issued Date -
Jan 16, 2020
app pub date -
Sep 24, 2019
filing date -
Sep 24, 2019
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A dilator includes a shaft with a tapered portion having an outer diameter that is smaller at a distal end than at a proximal end; a proximal end portion provided at a proximal end side of the tapered portion; and optionally a distal end portion provided at a distal end side of the tapered portion. Pitches of adjacent portions of the spirally-arranged protruding portion provided on the tapered portion are different (either smaller or larger) than those of adjacent portions of the spirally-arranged protruding portion provided on distal end side of the proximal end portion and/or on the distal end portion.
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