VIRUS-TRAPPING FILTER FOR DISPOSABLE BAG OR CONTAINER FOR MEDICAL ASPIRATOR

WIPO Patent Application WO/2017/188398

A1

PE sintered compact-CMC filters that have conventionally been used in flexible disposable bags or containers manufactured such that matter secreted in a patient's body can be suctioned, stored, and discarded when a fixed storage amount is reached have a fundamental flaw, namely the lack of long-term waterproofness as a result of being readily water-soluble, and have a potential risk regarding pathogen barrier properties as a result of having a large pore diameter. Provided is a flexible disposable bag or container in which a molded-body filter having an air permeability that is at least equivalent to that of PE sintered compact-CMC filters, short-term and long-term waterproofness, and an improved pathogen barrier function is formed by using, as the base material, a porous polytetrafluoroethylene (PTFE) film or PTFE nonwoven fabric having a designated structure and pore diameter, a laminate of a PTFE film and a PP nonwoven fabric, or a laminate of a PTFE film, a PP nonwoven fabric, and an electrified nonwoven fabric. The flexible disposable bag or container is manufactured by integrating the molded-body filter with a film bag in an incorporated or circumscribing form.

SAKON YUICHI (JP)
MASUDA MASAKAZU (JP)
KURAMOTO SATORU (JP)

PCT/JP2017/016811

November 02, 2017

April 27, 2017

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GREENPLA CO LTD (JP)

A61M1/00

WO2015033940A1

2015-03-12

US4487606A	1984-12-11
JP2008132405A	2008-06-12
JP2013220287A	2013-10-28
JP2010227758A	2010-10-14
JP2014042538A	2014-03-13
JPH0963312A	1997-03-07
JP2000158674A	2000-06-13
JP3203434U	2016-03-31
JP2015216994A	2015-12-07
GB2220357A	1990-01-10
JPH0630995A	1994-02-08

ASAMURA PATENT OFFICE, P.C. (JP)

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