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    • 1. 发明申请
    • MONITORING OF ORO-NASAL RESPIRATION
    • 监测ORO-NASAL呼吸
    • WO1996041571A1
    • 1996-12-27
    • PCT/AU1996000347
    • 1996-06-07
    • RESMED LIMITEDBRYDON, John, William, ErnestPICCIONE, Patrick, Manuel
    • RESMED LIMITED
    • A61B05/087
    • A61B5/097A61B5/087Y10S128/911
    • A pair of nasal prongs (15), suitable for insertion into the lower portion of the nares, join together via a small plenum chamber (16) to form a single tube (17) conveying the nasal pressure towards an electrical pressure transducer (19). Another prong (20) is held in proximity with the patient's mouth. A baffle element (25) extends downwards from a location above the open end of the prong (20) to redirect a portion of oral airflow. The oral tube (21) extends towards the electrical pressure transducer (19), and conjoins with the nasal tube (17) at a junction (22) to form a common tube (18) connected to the pressure transducer (19). The relative lengths and/or diameters of the nasal tube (17) and the oral tube (21) are arranged so that the respective pneumatic impedances are different, so that the contributions of respiratory airflow from each of said tubes (17, 21) are substantially equal.
    • 适于插入鼻孔下部的一对鼻尖(15)通过小的压力室16连接在一起以形成将鼻压传送到电压力传感器(19)的单个管(17) 。 另外一个分支(20)位于患者口附近。 挡板元件(25)从尖头(20)的开口端上方的位置向下延伸,以重新定向一部分口腔气流。 口管(21)朝向电压力传感器(19)延伸,并且在结(22)处与鼻管(17)结合,以形成连接到压力传感器(19)的公共管(18)。 鼻管(17)和口管(21)的相对长度和/或直径被布置成使得相应的气动阻抗不同,使得来自每个所述管(17,21)的呼吸气流的贡献为 基本相等
    • 3. 发明申请
    • INSPIRATORY DURATION IN CPAP OR ASSISTED RESPIRATION TREATMENT
    • CPAP或辅助呼吸治疗的感染期
    • WO1997015343A1
    • 1997-05-01
    • PCT/AU1996000652
    • 1996-10-17
    • RESMED LIMITEDBRYDON, John, William, ErnestWILLSON, Grant
    • RESMED LIMITED
    • A61M16/00
    • A61M16/0069A61M16/024A61M16/0858A61M2016/0021A61M2016/0036A61M2016/0039
    • Apparatus for the supply of breathable gas cyclically at an inspiratory pressure and the lower expiratory pressure substantially in synchronism with a patient's (16) respiration is disclosed. A flow generator (10) is coupled to a gas delivery system (12) to deliver the breathable gas to the patient's airways. A motor controller (23) receives a signal (36) representing respiratory flow. A motor controller (23) outputs a control signal (24) has control over the electric motor (25) and thus the turbine (22) to generate the required inspiratory and expiratory pressures. The controller (23) detects transitions between inspiration and expiration from the flow signal (36) to discriminate between patient inspiration and expiration. A counter (58) counts a first time duration commenced from the last transition to inspiration, whereby if the first time duration elapses before a transition to expiration, the controller (23) causes the supply of the expiration pressure. Furthermore, another counter (62) counts a second time duration commenced from the last transition to inspiration that forces the turbine (22) to supply the inspiratory pressure until the second time duration elapses even if during the second time duration there is a transition to expiration by the patient.
    • 公开了用于以吸气压力循环地供应透气性气体和与患者(16)呼吸基本上同步的较低呼气压力的装置。 流量发生器(10)联接到气体输送系统(12)以将可呼吸气体递送到患者的气道。 马达控制器(23)接收代表呼吸流量的信号(36)。 电动机控制器(23)输出具有对电动机(25)的控制的控制信号(24),从而输出涡轮(22)以产生所需的吸气和呼气压力。 控制器(23)从流量信号(36)检测吸气和呼气之间的转变,以区分患者的吸气和呼气。 计数器(58)对从上一次转换到吸气开始的第一时间段进行计数,从而如果在过渡到期之前经过了第一个持续时间,则控制器(23)引起提供呼气压力。 此外,另一个计数器(62)计算从上一次转换到启动的第二时间段,其强制涡轮机(22)提供吸气压力,直到第二持续时间过去,即使在第二持续时间期间过渡到期满 由病人
    • 5. 发明申请
    • APPARATUS AND METHODS FOR ORO-NASAL RESPIRATION MONITORING
    • 用于ORO-NASAL呼吸监测的装置和方法
    • WO1997005824A1
    • 1997-02-20
    • PCT/AU1996000500
    • 1996-08-08
    • RESMED LIMITEDBRYDON, John, William, ErnestCAPPIUS, Hans-Joachim
    • RESMED LIMITED
    • A61B05/087
    • G01F1/28A61B5/0876A61B5/097
    • Apparatus (40) for monitoring oro-nasal respiratory flow is disclosed. The apparatus (40) is formed of a curved plate (42) to which is substantially perpendicularly arranged a planar member (44), the plate (42) and the member (44) are connected by a neck portion (46). Mounted in an upstanding fashion from the planar member (44) are two nasal prongs (48, 50). Two PVDF sensors (60) are mounted from, and lie in, the plane of the planar member (44), co-operating with a respective nasal prong (48, 50). A further PVDF sensor (80) in planar form is arranged to be downwardly directed and perpendicular to the planar member (44) so as to be located in the vicinity of the mouth when the apparatus (40) is being worn by a patient. The PVDF sensors (60, 80) deflect respectively under the influence of nasal and oral airflow, and generate electrical charge having a determined relationship with the airflow.
    • 公开了用于监测鼻呼吸流量的装置(40)。 该装置(40)由弯曲板(42)形成,平板构件(44)基本上垂直布置,板(42)和构件(44)通过颈部(46)连接。 从平面构件(44)以直立方式安装有两个鼻针(48,50)。 两个PVDF传感器(60)从平面构件(44)的平面安装并位于平面构件(44)的平面中,与相应的鼻尖(48,50)配合。 平面形式的另一个PVDF传感器(80)布置成向下指向并垂直于平面构件(44),以便当装置(40)被患者佩戴时位于嘴的附近。 PVDF传感器(60,80)分别在鼻腔和口腔气流的影响下偏转,并产生与气流具有确定关系的电荷。
    • 6. 发明申请
    • DETERMINATION OF LEAK AND RESPIRATORY AIRFLOW
    • 确定泄漏和呼吸气流
    • WO1998006449A1
    • 1998-02-19
    • PCT/AU1997000517
    • 1997-08-14
    • RESMED LIMITEDBERTHON-JONES, Michael
    • RESMED LIMITED
    • A61M16/00
    • A61M16/0003A61M16/0057A61M16/0069A61M16/024A61M2016/0021A61M2016/0027A61M2016/0033A61M2016/0036A61M2205/15
    • Methods and apparatus for determining leak and respiratory airflow are disclosed. A pressure sensor (34) and a differential pressure sensor (32) have connection with a pneumotach (24) to derive instantaneous mask pressure and airflow respectively. A microcontroller (38) estimates a non-linear conductance of any leak path occuring at a mask (12) as being the low pass filtered instantaneous airflow divided by the low pass filtered square root of the instantaneous pressure. The instantaneous leak flow is then the conductance multiplied by the square root of the instantaneous pressure, and the respiratory airflow is calculated as being the instantaneous airflow minus the instantaneous leak flow. The time constants for the low pass filtering performed by the microcontroller (38) can be dynamically adjusted dependent upon sudden changes in the instananeous leak flow.
    • 公开了用于确定泄漏和呼吸气流的方法和装置。 压力传感器(34)和差压传感器(32)分别与喘振(24)连接以分别导出瞬时的掩模压力和气流。 微控制器(38)估计出现在掩模(12)处的任何泄漏路径的非线性电导是低通滤波的瞬时气流除以瞬时压力的低通滤波平方根。 瞬时泄漏流量是电导乘以瞬时压力的平方根,呼吸气流被计算为瞬时气流减去瞬时泄漏流量。 微控制器(38)执行的低通滤波的时间常数可以根据瞬时泄漏流的突然变化而动态调整。
    • 10. 发明申请
    • ASSISTED VENTILATION TO MATCH PATIENT RESPIRATORY NEED
    • 辅助通气,以匹配患者呼吸需要
    • WO1998012965A1
    • 1998-04-02
    • PCT/AU1997000631
    • 1997-09-23
    • RESMED LIMITED
    • RESMED LIMITEDBERTHON-JONES, Michael
    • A61B05/087
    • A61M16/0069A61B5/085A61B5/087A61B5/7264A61M16/0003A61M16/0051A61M16/024A61M16/06A61M16/1055A61M16/107A61M2016/0021A61M2016/0027A61M2016/0036A61M2205/15
    • The apparatus provides for the determination of the instantaneous phase in the respiratory cycle, subject's average respiration rate and the provision of ventilatory assistance. A microprocessor (16) receives an airflow signal from a pressure transducer (18) coupled to a port (17) at a mask (11). The microprocessor (16) controls a servo (19), that in turn controls the fan motor (20) and thus the pressure of air delivered by the blower (10). The blower (10) is coupled to a subject's mask (11) by a conduit (12). The invention seeks to address the following goals: while the subject is awake and making substantial efforts the delivered assistance should be closely matched in phase with the subject's efforts; the machine should automatically adjust the degree of assistance to maintain at least a specified minimum ventilation without relying on the integrity of the subject's chemoreflexes; and it should continue to work correctly in the presence of large leaks.
    • 该装置用于确定呼吸周期中的瞬时相位,受试者的平均呼吸速率和提供通气辅助。 微处理器(16)从在面罩(11)处连接到端口(17)的压力传感器(18)接收气流信号。 微处理器(16)控制伺服机构(19),伺服机构又控制风扇马达(20),从而控制由鼓风机(10)输送的空气的压力。 鼓风机(10)通过导管(12)联接到被检者的面罩(11)。 本发明旨在解决以下目标:在主体清醒和作出重大努力的同时,所提供的援助应与受试者的努力相一致; 机器应自动调整辅助程度以保持至少指定的最小通风,而不依赖于受试者的化学反应物的完整性; 并且在大泄漏的情况下应该继续正常工作。