公开(公告)号：US4559044A

公开(公告)日：1985-12-17

申请号：US404811

申请日：1982-08-03

申请人： Thomas P. Robinson ,  Don M. Killman ,  Andrew P. Mattson ,  James E. Hudson, Jr.

发明人： Thomas P. Robinson ,  Don M. Killman ,  Andrew P. Mattson ,  James E. Hudson, Jr.

IPC分类号： G01G17/06 ,  A61M5/168 ,  G01F11/08 ,  A61M5/00

CPC分类号： G01F11/08 ,  A61M5/16809

摘要： Three embodiments of a metering unit (10, 140, 200) are provided for metering fluid from a container (14) for infusion into a patient. The first embodiment of the metering unit (10) includes a cassette (26) formed of halves (28, 30). The halves (28, 30) each have a concave reservoir portion (36) formed on the inner face (32) thereon. Entry and exit channels (38, 42) extend from the reservoir portions adjacent entry and exit orifices (40, 44). Entry and exit port portions (46, 50) are formed in each half (28, 30). Flexible entry and exit valves (58, 64, 86 and 88) are movable between an open position, permitting fluid to flow through the orifices, to a closed position, preventing fluid from flowing through the orifices. The halves are separated by a flexible diaphragm (70) which divides a reservoir (76) into first and second compartments (78, 80). One entry valve is opened to permit fluid from the entry port (82) to flow into one compartment, the fluid flowing into the compartment moving the flexible diaphragm to force the fluid in the other compartment out to the exit port (84). The position of the valves is then interchanged, permitting fluid to flow into the other compartment and forcing the fluid in the first compartment into the exit port. A cassette (206) in the third embodiment of the unit (200) includes identical halves (208, 210) sonically bonded together. A diaphragm (296) separates parallel channels (218, 222) to reduce head pressure channel volume variations. Grooves (228, 230) are provided in the reservoir portions (216) to prevent fluid trappage between the diaphragm and portion wall. In all cassette embodiments, an activating frame operating the cassette prevents the positioning of all valves in the open position simultaneously.

摘要翻译： 计量单元（10,140,​​200）的三个实施例被提供用于从容器（14）计量流体以输注到患者体内。 计量单元（10）的第一实施例包括由半部（28,30）形成的盒（26）。 半部（28,30）各自具有形成在其上的内表面（32）上的凹形容纳部分（36）。 入口和出口通道（38,42）从邻近入口和出口孔（40,44）的储存器部分延伸。 入口和出口部分（46,50）形成在每一半（28,30）中。 柔性入口和出口阀（58,64,86和88）可以在允许流体流过孔口的打开位置之间移动到关闭位置，从而防止流体流过孔口。 一半由柔性隔膜（70）分开，该隔膜将贮存器（76）分成第一和第二隔室（78,80）。 一个入口阀被打开以允许来自入口（82）的流体流入一个隔室，流入隔间的流体移动柔性膜片，以迫使另一隔室中的流体流出出口（84）。 然后将阀的位置互换，允许流体流入另一隔室并迫使第一隔室中的流体进入出口。 单元（200）的第三实施例中的盒（206）包括声音结合在一起的相同的半部（208,210）。 隔膜（296）分离平行通道（218,222）以减小头部压力通道体积变化。 凹槽（228,230）设置在储存部分（216）中，以防止隔膜和部分壁之间的流体堵塞。 在所有盒式磁带实施例中，操作盒的启动框防止所有阀在同时处于打开位置的位置。

公开(公告)号：US4137916A

公开(公告)日：1979-02-06

申请号：US743925

申请日：1976-11-22

申请人： Don M. Killman ,  Thomas P. Robinson

发明人： Don M. Killman ,  Thomas P. Robinson

IPC分类号： A61M39/20 ,  A61M5/00

CPC分类号： A61M39/20

摘要： An obturator plug is provided with a thin circumferential deformable sealing skirt integrally formed on and protruding from the plug, engaging the inwardly facing wall of a female catheter fitting to form an improved obturator-catheter assembly having a catheter secured to its proximal end in a female catheter fitting and receiving an obturator having a shaft secured to a plug, the obturator plug including locking means engaging a predetermined portion of the female catheter fitting to lock the plug to the fitting after a specific degree of insertion of the plug into the fitting.

摘要翻译： 闭塞塞设置有整体形成在插塞上并从插座突出的薄的圆周可变形密封裙部，与阴导管配件的面向内的壁接合以形成改进的闭孔器 - 导管组件，其具有固定到其近端的导管 导管装配和接收具有固定到插头的轴的闭塞器，所述闭塞器塞包括锁定装置，所述锁定装置接合所述阴导管配件的预定部分，以在所述插头进入所述配件的特定程度的插入之后将所述插头锁定到所述配件。

公开(公告)号：US4979644A

公开(公告)日：1990-12-25

申请号：US311701

申请日：1989-02-15

申请人： Jack E. Meyer ,  Thomas C. Thompson ,  Tamera L. Clark ,  Andrew P. Johnson ,  Don M. Killman

发明人： Jack E. Meyer ,  Thomas C. Thompson ,  Tamera L. Clark ,  Andrew P. Johnson ,  Don M. Killman

IPC分类号： A61M5/168 ,  B67D3/00 ,  G05D7/01

CPC分类号： G05D7/0186 ,  A61M5/16818

摘要： An apparatus for rate controlled gravity drip delivery of a liquid from a replaceable storage container to a delivery site includes a first mount for removably suspending the container at a first elevation higher than the site. A second mount is located above the site, but at a second elevation below the first elevation by a predetermined amount. The second mount carries an intersurface comprising a venting tubing connector having an outlet into a delivery conduit extending to the site. A metering tube of predetermined flow resistance substantially higher than that of the delivery conduit extends from the container at one end and is releasably secured to the connector at its other end to define a two part flow path from the container to the site through the metering tube and delivery conduit. The venting of the connector subjects the fluid at the connector to the same ambient pressure as the fluid in the container so that the rate of delivery is substantially predetermined by the difference in the first and second elevations and flow resistance of the metering tube.

摘要翻译： 液体从可替换的储存容器到输送部位的速率控制的重力滴落装置包括用于将容器可移除地悬挂在比现场高的第一高度的第一安装件。 第二个安装座位于站点上方，但是在第一个高度以下的第二个高度预定量。 第二安装座具有包括通气管连接器的接口，该通气管连接器具有延伸到现场的输送管道的出口。 具有明显高于输送管道的预定流动阻力的计量管在一端处从容器延伸并且在其另一端处可释放地固定到连接器，以限定从容器到通过计量管的现场的两部分流动路径 和输送管道。 连接器的排气使连接器处的流体与容器中的流体相同的环境压力，使得输送速率基本上由计量管的第一和第二高度差和流动阻力的差异预先确定。