公开(公告)号：WO2014055026A1

公开(公告)日：2014-04-10

申请号：PCT/SE2013/051162

申请日：2013-10-03

Applicant: MEDCLAIR AB

Inventor： SUNDLING, Jerker

IPC: A61M16/10 ,  A61M16/12

CPC classification number: A61M16/06 ,  A61M16/0003 ,  A61M16/0051 ,  A61M16/0066 ,  A61M16/009 ,  A61M16/0093 ,  A61M16/01 ,  A61M16/10 ,  A61M16/104 ,  A61M16/1075 ,  A61M16/122 ,  A61M16/20 ,  A61M16/202 ,  A61M16/208 ,  A61M2202/0283 ,  A61M2205/18 ,  A61M2205/3368 ,  A61M2205/581 ,  A61M2205/583 ,  A61M2230/04 ,  A61M2230/30 ,  A61M2230/40 ,  A61M2230/437 ,  B01D53/04 ,  B01D53/8631 ,  B01D2257/404 ,  B01D2258/06 ,  B01D2259/4009 ,  B01D2259/4533 ,  B01D2259/4541 ,  Y02C20/10

Abstract: The invention relates to a face mask arrangement for alternately administering a gas I containing nitrous oxide and a gas II devoid of nitrous oxide to a patient, comprising a face mask, two inlet flow lines I and II for gas I and a gas II, respectively, which flow lines end in a breathing interface, and an outlet flow line for evacuation of exhaled gas. The two inlet flow lines merge into a common inlet part. Each of the inlet flow lines I and II comprises an inlet valve I and II, each of which is capable of opening in response to inhalation and of closing in response to exhalation. The arrangement comprises a switching means enabling switching between inhalation through inlet flow line I and inlet flow line II depending on the patient's immediate need of gas I or gas II. The invention relates also to a system comprises the face mask arrangement and an apparatus for collecting inhalation air from patients inhaling gas containing nitrous oxide and to the use of the face mask arrangement for administration of nitrous oxide to a patient via inhalation and collecting nitrous oxide from exhaled air of a patient during the administration.

Abstract translation: 本发明涉及一种面罩装置，用于向患者交替施用含有一氧化二氮的气体I和一氧化二氮的气体I，其包括面罩，分别用于气体I和气体II的两个入口流动管线I和II ，这些流动管线在呼吸界面中终止，以及用于排出呼出气体的出口流动管线。 两个入口流线合并成一个共同的入口部分。 每个入口流动管线I和II包括入口阀I和II，每个入口阀I和II能够响应于呼气而响应于吸入和关闭而打开。 该装置包括切换装置，其能够根据患者对气体I或气体II的即时需要在入口流动管线I和入口流动管线II进行吸入之间进行切换。 本发明还涉及一种包括面罩装置的系统和用于从吸入含有一氧化二氮的气体的患者收集吸入空气的装置，以及使用面罩装置，用于通过吸入和收集一氧化二氮来向患者施用一氧化二氮 给药期间患者呼出空气。

公开(公告)号：WO2022194942A1

公开(公告)日：2022-09-22

申请号：PCT/EP2022/056842

申请日：2022-03-16

Applicant: MEDCLAIR AB

Inventor： SZABÓ, István ,  SUNDLING, Jerker ,  NYBERG, Tomas

IPC: G01N21/3504

Abstract: The present invention relates to a gas sensor (100) comprising a measurement chamber (102) for measuring presence of a first gas, the first gas being nitrous oxide (N2O) and an optical source (103) for emitting radiation in the measurement chamber (102). The sensor also comprises a radiation detector (104) sensitive to radiation emitted by the optical source (103), the radiation being detected by the radiation detector (104) following passage through the measurement chamber (102). A diffusion layer (131) is configured to allow diffusion of ambient gas into and out from the measurement chamber (102), and the diffusion layer (131) comprises means (133) for preventing diffusion of carbon dioxide (CO2) in the ambient gas into the measurement chamber (102). The invention also relates a nitrous oxide detector comprising such a gas sensor, and a method for determining presence of nitrous oxide in the ambience.

公开(公告)号：WO2018193043A1

公开(公告)日：2018-10-25

申请号：PCT/EP2018/060063

申请日：2018-04-19

Applicant: MEDCLAIR AB

Inventor： SZABÓ, István ,  SUNDLING, Jerker ,  NYBERG, Tomas

IPC: B01D53/04 ,  A61M16/10 ,  B01D53/86 ,  A61M16/00

Abstract: The invention relates to an apparatus (1) for catalytic decomposition of nitrous oxide in a gas stream derived from exhalation air from a patient. The apparatus (1) comprises an inlet arrangement (2) with a gas inlet (3) for the exhalation air, an outlet arrangement (11) with a gas outlet (12) for an outlet gas, and between these arrangements a through-flow decomposition chamber (9) containing a catalyst material. According to the invention the apparatus is provided with a nitrous oxide adsorption/desorption means (4) in the inlet arrangement (2) for level out variations in the concentration of nitrous oxide fed to the decomposition chamber (9).