Needle for medical use
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 4, 2006
Grant Date -
Oct 27, 2005
app pub date -
Jul 14, 2003
filing date -
Jul 12, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A medical needle includes a solid rod-like inner needle to be inserted into the living tissue, and a hollow cylindrical outer tube needle to be inserted into the living tissue together with the inner needle, while the inner needle is inserted into the inner needle. The hollow cylindrical outer tube needle is retained in the living tissue after the inner needle is removed. A tip portion of the inner needle extending out of a front end bore of the outer tube needle is formed as a spherical crown portion capable of being inserted along a punctured hole previously formed in the living tissue so as not to damage the lumen of the punctured hole. Accordingly, it is possible to reduce a pain upon creating a puncture, subcutaneous bleeding and damage to a blood vessel wall, eliminate coring, and an infectious accident.
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