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. 03, 2024
Filed:
Sep. 22, 2020
Engain, Seongnam-si, KR;
ENGAIN, Seongnam-si, KR;
Abstract
An apparatus for preventing backflow. The apparatus includes a housing; a trap flow part forming a flow passage for a medical fluid, a discharge part provided on an lower portion of the housing and to receive the medical fluid from the trap flow part and to discharge the medical fluid; a backflow prevention chamber part provided between the trap flow part and the discharge part; and a plate-shaped backflow prevention member provided on one surface of the inner side of the backflow prevention chamber part connected to the trap flow part and in close contact with a periphery of the outlet opening, the plate-shaped backflow prevention member being provided to open or close the opening depending on forward flow and the backflow of the medical fluid.