Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroaki Nakajima0
Date of Patent
July 24, 2012
Patent Application Number
11790793
Date Filed
April 27, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
A needle assembly for introducing an indwelling catheter into a blood vessel is provided. The needle assembly may include a handle including a flashback chamber configured to allow inflow of flashback blood, and a needle hub. The handle and the needle hub may each be configured with through holes to allow flashback of blood from a needle to the flashback chamber without a mediating member between the through holes.
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