Apparatus for rezeroing an in vivo pressure sensor and method for
rezeroing
    1.
    发明授权
    Apparatus for rezeroing an in vivo pressure sensor and method for rezeroing 失效
    用于重新排列压力传感器的装置和重新排列的方法

    公开(公告)号:US5133358A

    公开(公告)日:1992-07-28

    申请号:US578712

    申请日:1990-09-07

    CPC分类号: A61B5/02156 G01L27/005

    摘要: A sensor assembly for an in vivo physiological pressure measurement has a member with a distal end to ease placement of the catheter sensor assembly in vivo. A passage is preferably in an intermediate part of the member and is open but covered by a pressure responsive sensor sealing the passage. The sensor has a first side away from the intermediate part for exposure to in vivo physiological pressure and a second side in fluid communication with the passage. A pressure connecting means for inhibiting liquid communication located between the physiological pressure and the passage is arranged for selectively connection therebetween so that when connected the pressure on the first and second sides of the sensor can be substantially equalized. A control ex vivo makes the selective connection of the second side of the pressure sensor and the physiological pressure. A method for rezeroing an in vivo pressure sensor has the steps of obtaining a signal from the first side of the sensor at distal end, using a pressure substantially equal to the in vivo pressure and applying that pressure to the second side of the sensor.

    Apparatus for rezeroing an in vivo pressure sensor and method for
rezeroing
    4.
    发明授权
    Apparatus for rezeroing an in vivo pressure sensor and method for rezeroing 失效
    用于重新归零体内压力传感器的设备和用于重新调零的方法

    公开(公告)号:US5203340A

    公开(公告)日:1993-04-20

    申请号:US851712

    申请日:1992-03-16

    IPC分类号: A61B5/0215 G01L27/00

    CPC分类号: A61B5/02156 G01L27/005

    摘要: A sensor assembly for an in vivo physiological pressure measurement has a member with a distal end to ease placement of the catheter sensor assembly in vivo. A passage is preferably in an intermediate part of the member and is open but covered by a pressure responsive sensor sealing the passage. The sensor has a first side away from the intermediate part for exposure to in vivo physiological pressure and a second side in fluid communication with the passage. A pressure connecting means for inhibiting liquid communication located between the physiological pressure and the passage is arranged for selectively connection therebetween so that when connected the pressure on the first and second sides of the sensor can be substantially equalized. A control ex vivo makes the selective connection of the second side of the pressure sensor and the physiological pressure. A method for rezeroing an in vivo pressure sensor has the steps of obtaining a signal from the first side of the sensor at distal end, using a pressure substantially equal to the in vivo pressure and applying that pressure to the second side of the sensor.

    摘要翻译: 用于体内生理压力测量的传感器组件具有具有远端的构件,以便于在体内放置导管传感器组件。 通道优选位于构件的中间部分中,并且是敞开的,而是由密封通道的压力响应传感器覆盖。 传感器具有远离中间部分的第一侧以暴露于体内生理压力,并且与通道流体连通的第二侧。 布置用于抑制生理压力和通道之间的液体连通的压力连接装置,用于选择性地连接在它们之间,使得当连接时,传感器的第一和第二侧上的压力可以基本相等。 离体对照使得压力传感器的第二侧和生理压力的选择性连接。 用于对体内压力传感器进行重新调零的方法具有以下步骤:使用基本上等于体内压力的压力并将该压力施加到传感器的第二侧,从远端处的传感器的第一侧获得信号。

    Tracheal tube
    5.
    发明授权
    Tracheal tube 失效
    气管

    公开(公告)号:US3964488A

    公开(公告)日:1976-06-22

    申请号:US523250

    申请日:1974-11-13

    IPC分类号: A61M16/04 A61M16/00

    CPC分类号: A61M16/04 A61M2205/0266

    摘要: A tracheal tube that may be constructed for either oral or nasal use is preformed as a flexible integral unit from flexible material having a memory so as to return to preformed shape following flexure. The tube has a proximal or machine end portion and a distal or patient end portion interconnected along the length of the tube by an intermediate portion and an abrupt bend portion. The distal or patient end portion and the adjoining intermediate portion merge into each other along the length of the tube and include curvature such that they will positionally conform to the shape of a patient's posterior pharynx and trachea and extend therealong when the tracheal tube is installed for use. The abrupt bend portion interconnects the proximal or machine end portion and the intermediate portion along the length of the tube at an angle substantially no greater than 90.degree., so such proximal or machine end portion will be located exteriorly of the body opening of the patient and will extend along the face of the patient exteriorly of such body opening when the tracheal tube is installed for use. In those embodiments intended for oral use, the distal or patient end portion extends in the same general direction as the proximal or machine end portion. In those intended for nasal use, the distal or patient end portion extends in the opposite direction. In both instances, there is a springlike action from the bend portion toward the distal or patient end of the tube that tends to hold the tube in place without harming delicate tissues. A pair of ports are preferably provided adjacent the distal or patient end of the tube as a safety measure to supply ventilation to both the right and th left lungs during anesthesia should the tube be accidentally advanced beyond the trachea.

    摘要翻译: 可以构造用于口服或鼻腔使用的气管管由具有记忆的柔性材料预先形成为柔性整体单元,以便在弯曲之后返回到预成型形状。 管具有近端或机器端部分,以及通过中间部分和突然弯曲部分沿着管的长度互连的远端或患者端部。 远端或患者端部和相邻的中间部分沿着管的长度彼此合并,并且包括曲率,使得它们将位置地符合患者的后咽和气管的形状,并且当安装气管管时沿着其延伸 使用。 突起弯曲部分以近似不大于90°的角度将近端或机器端部和中间部分沿着管的长度互连,因此近端或机器端部将位于患者身体开口的外侧, 当气管插管安装使用时,将沿着该体部开口外侧的患者面延伸。 在用于口服使用的那些实施例中,远端或患者端部部分在与近侧或机器端部分相同的大致方向上延伸。 在用于鼻部使用的那些中,远端或患者端部沿相反方向延伸。 在这两种情况下,从管的弯曲部分朝向远端或患者端都有弹簧状作用,倾向于将管保持在适当的位置,而不会损伤微妙的组织。 优选地,在管的远端或患者端附近设置一对端口作为安全措施,以在管意外地超过气管超过麻醉期间向右肺和左肺供肺。

    Apparatus for carrying a sensor in a connector for a catheter adapter
    6.
    发明授权
    Apparatus for carrying a sensor in a connector for a catheter adapter 失效
    用于在电缆适配器的连接器中传送传感器的装置

    公开(公告)号:US5218965A

    公开(公告)日:1993-06-15

    申请号:US620994

    申请日:1990-12-03

    申请人: Wallace H. Ring

    发明人: Wallace H. Ring

    CPC分类号: A61M5/16854 A61B5/0215

    摘要: A catheter carrying a sensor for placement in a catheter adapter has proximal and distal parts with a passage therebetween. The distal part detachably fits within a catheter adapter. The connector, when attached to the adapter, places the passage in fluid communication with and near a catheter lumen. A sensor on the connector within the distal part is exposed to the passage for fluid communication with the lumen. The sensor mounts on a tube or in an inside wall of the distal part and extends within the passage and partially through the distal part to monitor pressure with a first side of the sensor exposed to the passage and a second side of the sensor covering an exit from the connector near the proximal part. The second side is vented to atmospheric pressure and a sensor signal communication means connects the sensor to pass signals from the sensor through the exit. A sleeve extends distally on the connector for threaded engagement with a male luer on the adapter allowing fluid tight communication between a cavity within the adapter and the passage. The distal part substantially fills the cavity reducing the hydraulic column volume in the lumen and the passage. A method places a catheter into a human or animal to provide access to dynamic pressure, measures atmospheric pressure with a sensor carried on a connector, sets the signal response of the sensor measurement to a datum for atmospheric pressure applied to first and second sides and attaches the connector to the adapter to fit the distal part into the cavity in the adapter so gas within the cavity and the passage escapes to provide a hydraulic column substantially free of gas.