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:
Jul. 17, 2001
Filed:
Aug. 30, 1999
Applicant:
Inventors:
Assignee:
Vygon, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/178 ;
U.S. Cl.
CPC ...
A61M 5/178 ;
Abstract
A hub (,) of an arterial puncture needle includes a tubular and transparent viewing chamber (,) accessible to the reflux of blood, and a reserve chamber (,) which is leaktight to the ambient air and in air communication with an outlet end (,) of the viewing chamber. The two chambers form a rigid unit with the hub and have predetermined volumes such that the blood does not reach the air reserve chamber when the systolic pressure is maximal.