The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2017
Filed:
Jun. 23, 2011
Akihiko Yagi, Kanagawa, JP;
Takahiro Souma, Kanagawa, JP;
Akihiko Yagi, Kanagawa, JP;
Takahiro Souma, Kanagawa, JP;
TERUMO KABUSHIKI KAISHA, Ashigarakami-Gun, Kanagawa, JP;
Abstract
An extravasation detecting apparatus is provided which is capable of detecting at an early stage the dislodgment of a tip opening of a solution supplying tool from a blood vessel. The extravasation detecting apparatus includes: a fluid delivery unit which supplies a fluid medicine by repetitively performing operations of pressing and occluding a portion between a fluid medicine containing unit and a puncture site of an infusion tube, subsequently suctioning the fluid medicine from upstream using a restoring force of the infusion tube, and once again pressing and occluding the infusion tube to push out the fluid medicine toward downstream; a tube closing unit located upstream of the fluid delivery unit; and a blood detecting sensor which operates the tube closing unit during a solution supplying operation to generate negative pressure in a downstream infusion tube and which detects whether or not blood is being suctioned between the fluid delivery unit and the puncture site into the infusion tube from a punctured blood vessel.