Invention Grant
- Patent Title: Anesthesia device and method of controlling hydrogen concentration in a hydrogen-containing anesthesia gas
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Application No.: US15544348Application Date: 2016-01-19
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Publication No.: US10596344B2Publication Date: 2020-03-24
- Inventor: Yoshiki Nishiwaki , Tomiei Kazama , Yasushi Satoh
- Applicant: TAIYO NIPPON SANSO CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TAIYO NIPPON SANSO CORPORATION
- Current Assignee: TAIYO NIPPON SANSO CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Nixon & Vanderhye P.C.
- Priority: JP2015-009352 20150121
- International Application: PCT/JP2016/051399 WO 20160119
- International Announcement: WO2016/117538 WO 20160728
- Main IPC: A61M16/10
- IPC: A61M16/10 ; A61D7/04 ; A61M16/01 ; A61M16/00 ; A61M16/08 ; A61M16/12 ; A61M16/22 ; A61M16/18 ; A61K31/02 ; A61K31/08

Abstract:
An anesthesia device configured to measure the hydrogen concentration in an anesthesia gas containing a hydrogen gas includes: an anesthesia gas preparation circuit configured to generate anesthesia gas by mixing an air or an oxygen mixture air with a vaporized anesthetic; a closed circuit-type or semi-closed circuit-type respiratory circuit including a gas circulation passage configured to circulate the hydrogen-containing anesthesia gas containing the hydrogen gas and the vaporized anesthetic; and a hydrogen concentration measurement circuit configured to measure the hydrogen concentration in the hydrogen-containing anesthesia gas in the gas circulation passage, wherein the hydrogen concentration measurement circuit includes: an anesthetic removing member having a removability of the vaporized anesthetic in the hydrogen-containing anesthesia gas; and a hydrogen concentration measuring instrument provided on the secondary side of the anesthetic removing member.
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