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1. 发明授权

US06471436B1 Elastomeric connector coupling motor to cam actuator of infusion pump 失效
标题翻译：弹性连接器连接电机到输液泵的凸轮致动器
公开(公告)号：US06471436B1
公开(公告)日：2002-10-29
申请号：US09100621
申请日：1998-06-19
申请人： John D. Gjata , Michael W. Lawless , Andrew J. Scherer , Peter A. Soberon , Stephanie R. Squarcia
发明人： John D. Gjata , Michael W. Lawless , Andrew J. Scherer , Peter A. Soberon , Stephanie R. Squarcia
IPC分类号： F16D100
CPC分类号： F04B17/03 , A61M5/14224 , F16D3/74 , Y10T403/453 , Y10T403/458 , Y10T403/5733
摘要： A drive connector for elastomerically coupling a drive shaft to a driven shaft. An elastomeric coupling includes openings on opposite ends that are generally “D”-shaped forming an interference fit with correspondingly shaped ends of the drive shaft and the driven shaft. A web extends transversely within the interior of the elastomeric coupling, limiting the distance that the drive shaft and driven shaft are inserted within the openings of the coupling. The coupling includes a rib that runs longitudinally along its outer length. A sleeve having a groove corresponding in size and shape to the rib is slipped over the coupling and is connected to the driven shaft. The sleeve includes a rigid interior element that is overmolded with an elastomeric material. A cam bearing is fitted over a cam surface on the sleeve and provides a force in one direction, urging a plunger to displace an elastomeric membrane in a pumping cassette, forcing medicinal fluid to flow through the pumping cassette. The elastomeric membrane provides the restoring force to the plunger, so that a loop formed on the upper portion of the plunger and disposed around the cam bearing does not receive any force from the cam bearing to move the plunger away from the pump cassette. The elastomeric coupling and sleeve form a relatively compact assembly for coupling the drive shaft to the driven shaft and accommodate minor misalignment between the center lines of the drive shaft and the driven shaft.
摘要翻译：用于将驱动轴与从动轴弹性耦合的驱动连接器。弹性体联接器包括在相对端上的开口，其通常形成与驱动轴和从动轴的对应形状端部的过盈配合的“D”形状。腹板在弹性体联接件的内部横向延伸，限制了驱动轴和从动轴在联轴器的开口内插入的距离。联轴器包括沿其外部长度纵向延伸的肋。具有对应于肋的尺寸和形状的凹槽的套筒滑过联接器并连接到从动轴。套筒包括用弹性体材料包覆成型的刚性内部元件。凸轮轴承安装在套筒上的凸轮表面上并且在一个方向上提供力，推动柱塞移动泵送盒中的弹性体膜，迫使药液流过泵送盒。弹性膜向柱塞提供恢复力，使得形成在柱塞的上部并且围绕凸轮轴承设置的环不会受到来自凸轮轴承的任何作用力以将柱塞移离泵盒。弹性体联接器和套筒形成相对紧凑的组件，用于将驱动轴联接到从动轴并且容纳驱动轴和从动轴的中心线之间的微小错位。

2. 发明授权

US06231320B1 Drug infusion pumping cassette latching mechanism 有权
标题翻译：药液输液泵盒锁闭机构
公开(公告)号：US06231320B1
公开(公告)日：2001-05-15
申请号：US09302710
申请日：1999-04-30
申请人： Michael W. Lawless , Peter A. Soberon , Andrew J. Scherer , Stephanie R. Squarcia
发明人： Michael W. Lawless , Peter A. Soberon , Andrew J. Scherer , Stephanie R. Squarcia
IPC分类号： F04B4308
CPC分类号： A61M5/365 , A61M5/14224 , A61M2205/12 , G01N29/02 , G01N29/222 , G01N2291/02433 , G01N2291/102
摘要： In a pump chassis (112), spring-loaded members (108a, 108b) engage a pumping cassette (114) to it in a predetermined position. The members each include pairs of latches (110a, 110b) that are each beveled to form a ramp so that the latches and associated members are forced outwardly to enable the pumping cassette to be seated within the pump chassis. The latches engage the pump cassette as it is seated, holding it securely. A release button (138) is attached to a spring-loaded shaft (144) that extends into the interior of the pump chassis. The shaft has a ramp formed on its inner end. When the user depresses the release button, the ramp rides under inwardly extending arms (162a, 162b) provided on the members, forcing the members and attached latches to move outwardly. As the members move outwardly, the pumping cassette is released and readily removed.
摘要翻译：在泵底盘（112）中，弹簧加载构件（108a，108b）在预定位置与泵壳（114）接合。每个构件包括成对的闩锁（110a，110b），每个闩锁各自倾斜以形成斜坡，使得闩锁和相关联的构件被向外强制，使得泵送盒能够安置在泵底盘内。锁定器在就座时接合泵盒，牢固地握住。释放按钮（138）附接到延伸到泵底盘内部的弹簧加载轴（144）。轴在其内端形成有斜坡。当用户按下释放按钮时，斜坡骑在设置在构件上的向内延伸的臂（162a，162b）下方，迫使构件和附接的闩锁向外移动。当构件向外移动时，泵送盒被释放并容易地移除。

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