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Invention Publication
CN105392515A 带旁通管的气流换向元件和控制患者呼气的方法 有权 转让

带旁通管的气流换向元件和控制患者呼气的方法
Abstract:
利用过压下的气源(14)、特别是吸气气体的气流换向元件(1)，用于选择性地产生来自或到一管接头(6)的气流(8)，该管接头特别可以连接到患者气道，所述气流换向元件(1)被设计成主件(2)以及另外的分支件(3)，该主件(2)至少包括流入区(9)、喷嘴区(15)和混合区(16)，该流入区(9)将用于对气源(14)的连接的压力接头(4)连接到布置在混合区(16)中的至少一个可以闭合出口孔(5)，而分支件(3)将主件(2)的喷嘴区(15)连接到管接头(6)，其中喷嘴(7)，特别是喷射嘴配置并且布置在喷嘴区(15)中，使得在出口孔(5)打开时，沿着通过主件(2)的第一流动路径(20)流动到出口孔(5)的气流(8)，可以在分支件(3)中产生沿着第二流动路径(21)流动到出口孔(5)的气流(8)，其中该第一流动路径起始于压力接头(4)，顺序通过流入区(9)、流动区(28)、喷嘴区(15)，并通过喷嘴(7)进入混合区(16)，而该第二流动路径起始于管接头(6)，并且顺序通过分支件(3)、通过喷嘴区(15)、并且通过混合区(16)，其中该气流换向元件(1)还包括旁通管(18)，该旁通管连接压力接头(4)和管接头(6)，以便气流(8)可以沿着经由流入区(9)、旁通管(18)和分支件(3)的第三流动路径(22)流动，其中至少旁通管(18)和流动区(28)是通过至少一个闭合元件(19)可闭合的，以便气流(8)可以沿着第三流动路径(22)经由旁通管(18)绕过喷嘴区(15)中的喷嘴(7)。本发明还涉及控制患者呼气的方法。
Abstract(English):

Gas flow reversing element (1) for the use of a gas supply (14) under excess pressure, in particular inspiratory gases, for selectively generating a gas flow (8) from or to a line connector (6) which can in particular be connected to an airway of a patient, said gas flow reversing element (1) being designed as a main piece (2), the main piece (2) at least comprising an inflow region (9), a nozzle region (15) and a mixing region (16), and further a branching piece (3), the inflow region (9) connecting a pressure connector (4), for connection to the gas supply (14), to at least one closable outlet opening (5) arranged in the mixing region (16), and the branching piece (3) connecting the nozzle region (15) of the main piece (2) to the line connector (6), wherein a nozzle (7), particularly an injector nozzle, is configured and arranged in the nozzle region (15) in such a way that, a gas flow (8) flowing along a first flow path (20) through the main piece (2) from the pressure connector (4) subsequently through the inflow region (9), the flow region (28), the nozzle region (15) and through the nozzle (7) into the mixing region (16) to the outlet opening (5), with the outlet opening (5) opened, can generate a gas flow (8) in the branching piece (3) flowing along a second flow path (21) from the line connector (6) and subsequently through the branching piece (3), through the nozzle region (15) and through the mixing region (16) to the outlet opening (5), wherein the gas flow reversing element (1) further comprises a bypass (18) connecting the pressure connector (4) and the line connector (6) so that a gas flow (8) can flow along a third flow path (22) via the inflow region (9), the bypass (18) and the branching piece (3), wherein at least the bypass (18) and the flow region (28) are closable by at least one closing element (19), so that the gas flow (8) can bypass the nozzle (7) in the nozzle region (15) via the bypass (18) along the third flow path (22). The invention further relates to method for controlling expiration of a patient.

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