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:
Oct. 17, 2023
Filed:
Apr. 24, 2018
National Cancer Center, Gyeonggi-do, KR;
Eulji University Industry Academy Cooperation Foundation, Gyeonggi-do, KR;
Heon Yoo, Seoul, KR;
Kwang Gi Kim, Seoul, KR;
Young Tae Kim, Incheon, KR;
Seung Hoon Lee, Daejeon, KR;
National Cancer Center, Gyeonggi-do, KR;
Eulji University Industry Academy Cooperation Foundation, Gyeonggi-do, KR;
Abstract
The present invention provides a skull implant-type automatic fluid drain device comprising: a body having a first port to be connected to a catheter, a second port provided opposite the first port, and a flow passage connecting the first port and the second port; a separation member for separating the flow passage into first and second sub-channels; a first valve fixed to the separation member and provided to allow the movement of a fluid that moves from the first port to the second port in the first sub-channel; and a second valve fixed to the separation member and provided to allow the movement of a fluid that moves from the second port to the first port in the second sub-channel, wherein each of the first valve and the second valve has an inflow end portion that is open and a discharge end portion provided in a closed state such that the same is selectively opened at an allowed opening pressure or higher; each of the first valve and the second valve is configured such that the inner flow sectional area decreases along the direction of allowed movement of the fluid passing through each of the inflow end portion and the discharge end portion; and the allowed opening pressures of the first valve and the second valve are set to differ from each other.