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:
Nov. 22, 2022
Filed:
Jul. 15, 2020
Asahi Kasei Medical Co., Ltd., Tokyo, JP;
Tomohisa Yokomizo, Tokyo, JP;
Tomoko Uchiyama, Tokyo, JP;
ASAHI KASEI MEDICAL CO., LTD., Tokyo, JP;
Abstract
A blood treatment filter comprising a filter element, an inlet-side flexible container and an outlet-side flexible container, an inlet port, and a tubular outlet port, further comprises: an outlet-side frame sheet disposed between the filter element and the outlet-side flexible container; a first seal portion provided by sealing at least the filter element and the outlet-side frame sheet in a belt-shaped manner; and an annular second seal portion provided to surround the first seal portion, wherein on an outlet side of the filter element, a valley portion is formed at the first seal portion, the outlet port includes a protruding portion that protrudes to an inside of the container, and the protruding portion is provided with an opening at least a part of which overlaps with the first seal portion and which can communicate with a gap region formed by the valley portion.