Invention Grant
- Patent Title: Virus-collecting filter for medical aspirator system
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Application No.: US17043146Application Date: 2018-12-19
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Publication No.: US12023430B2Publication Date: 2024-07-02
- Inventor: Yuichi Sakon , Yoshiharu Yabuki , Satoru Kuramoto , Masakazu Masuda
- Applicant: GPF Co. Ltd.
- Applicant Address: JP Tokyo
- Assignee: GPF Co. Ltd.
- Current Assignee: GPF Co. Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: WO TJP2018013896 2018.12.19
- International Application: PCT/JP2018/046810 2018.12.19
- International Announcement: WO2019/187403A 2019.10.03
- Date entered country: 2020-09-29
- Main IPC: B01D39/18
- IPC: B01D39/18 ; A61M1/00 ; B01D39/12 ; B01D39/16 ; B01D46/00 ; B01D46/02 ; B01D46/12

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.
Public/Granted literature
- US20210252207A1 VIRUS-COLLECTING FILTER FOR MEDICAL ASPIRATOR SYSTEM Public/Granted day:2021-08-19
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