公开(公告)号：US12023430B2

公开(公告)日：2024-07-02

申请号：US17043146

申请日：2018-12-19

Applicant: GPF Co. Ltd.

Inventor： Yuichi Sakon ,  Yoshiharu Yabuki ,  Satoru Kuramoto ,  Masakazu Masuda

IPC: B01D39/18 ,  A61M1/00 ,  B01D39/12 ,  B01D39/16 ,  B01D46/00 ,  B01D46/02 ,  B01D46/12

CPC classification number: A61M1/60 ,  A61M1/604 ,  B01D39/12 ,  B01D39/1623 ,  B01D39/18 ,  B01D46/0032 ,  B01D46/02 ,  A61M2205/7509 ,  A61M2205/7518 ,  B01D46/12 ,  B01D2239/0291 ,  B01D2239/0421 ,  B01D2239/0428 ,  B01D2239/0435 ,  B01D2239/0618 ,  B01D2239/0622 ,  B01D2239/0627 ,  B01D2239/065 ,  B01D2239/1216 ,  B01D2239/1258 ,  B01D2279/65

Abstract: Provided is a molded filter used for a flexible disposable bag which is produced so as to be capable of sucking and storing, for example, bodily secretions of a patient and being disposed when a fixed storage amount is reached, wherein a laminate of at least two elements of a powdered hydrophilic swelling agent and a charged nonwoven fabric, and more preferably, a laminate of three elements with a hydrophobic porous film added thereto, is used as a filter base material and the charged nonwoven fabric is arranged downstream of the powdered hydrophilic swelling agent in a direction of flow of expiratory air inside the body. Thus, the molded filter has functions of air permeability that is equal to or higher than a PE sintered body CMC filter, short term and long term waterproof properties, and a better microbial barrier property.