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:
Sep. 15, 1992
Filed:
Oct. 22, 1991
Karl J Hemmerich, Del Mar, CA (US);
Henry D Kraus, Valley Center, CA (US);
Biosafety Systems, Inc., San Diego, CA (US);
Abstract
The apparatus for priming a hypodermic needle with hazardous fluid and for retaining the hazardous fluid expelled from the needle in purging air from the needle includes a hypodermic needle and a tubular sheath member with a distal fluid containment chamber. The proximal end of the needle is adapted to be connected to a syringe or I.V. tubing, and is preferably removably mounted in the base portion of the sheath. The containment chamber includes a sealing membrane through which the needle extends, and a vent with a hydrophobic filter is disposed in the distal end of the containment chamber for venting air. A deflector shield is also provided within the containment chamber between the hydrophobic filter at the vent opening and the hypodermic needle for deflecting the hazardous fluid expelled from the distal end of the needle. The deflector shield preferably includes a planar member extending transversely within the containment chamber with a shield portion adjacent to the needle, and at least one fluid flow passage for communicating air from the needle through the vent.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile