Electrically controlled intravenous infusion set
    1.
    发明授权
    Electrically controlled intravenous infusion set 失效
    电控静脉输液器

    公开(公告)号:US4038982A

    公开(公告)日:1977-08-02

    申请号:US637208

    申请日:1975-12-03

    IPC分类号: A61M5/00 A61M5/168 A61M5/14

    摘要: An electronically controlled intravenous infusion set of the gravity feed type having a flow path including a drip chamber and an internal valve for regulating flow through the set. Electromagnetic valve operating structure, positioned outside the IV set, controls the internal valve in response to an electronic control system. The electronic control system serves to open the valve to allow a drop to fall, and includes a control circuit. The control circuit includes an optical drop detector, associated with but positioned outside the drip chamber, which senses the falling drop and signals the control circuit to close the valve. The control circuit also includes a variable frequency clock and associated digital selectors for affording an attendant the ability to precisely select a desired drip rate. An alarm system, operating on digital principles, senses high drop rate or low drop rate conditions and, in response thereto, puts the control system into an alarm condition. The alarm system includes means for digitally adjusting the sensitivity thereof to provide high sensitivity at low drip rates but to decrease the sensitivity at higher rates so that premature alarm conditions are avoided.

    摘要翻译: 一种具有流路的重力进料型电子控制静脉输注装置,该流路包括滴水室和用于调节流过该组的内部阀。 位于IV组外的电磁阀操作结构根据电子控制系统控制内阀。 电子控制系统用于打开阀门以允许液滴落下,并且包括控制电路。 该控制电路包括一个光学滴落检测器,该光学滴落检测器与滴液室相关联,但位于滴液室外部,该检测器检测掉落下降并且指示控制电路关闭阀门。 控制电路还包括可变频率时钟和相关联的数字选择器,用于为服务员提供精确选择所需滴流速率的能力。 以数字原理操作的报警系统可以感测高压降率或低下降率条件,并且响应于此,将控制系统置于报警状态。 报警系统包括用于数字调节其灵敏度的装置,以低滴流率提供高灵敏度,但是以更高的速率降低灵敏度,从而避免过早的报警状况。

    Electronically controlled intravenous infusion set
    3.
    发明授权
    Electronically controlled intravenous infusion set 失效
    电控静脉输液器

    公开(公告)号:US4038981A

    公开(公告)日:1977-08-02

    申请号:US637206

    申请日:1975-12-03

    IPC分类号: A61M5/168 A61M5/16

    摘要: An electronically controlled, gravity-feed, intravenous infusion set in which a length of intravenous tubing is connected with a drip chamber to convey a fluid to be administered intravenously, the improvement comprising a normally closed internal valve in said set operable to prevent flow of fluid through the set and operated to open position to enable passage of a drop of fluid through the set, and an electrically controlled actuator operatively associated with the valve to operate the valve to its open position at a predetermined frequency of operation and to hold the valve open until a drop forms and falls to thus determine the drip rate of fluid through the set, said internal valve thus enabling control of flow of fluid through the set without necessitating crimping or other deformation of the set and thereby resulting in dependable and accurate control of the flow rate of the fluid to be administered intravenously.

    摘要翻译: 一种电子控制的重力给药静脉输注装置,其中一段静脉内管道与滴液室连接以输送静脉内施用的流体,该改进包括所述组件中的常闭内部阀,其可操作以防止流体流动 通过设定并操作到打开位置以使一滴液体通过该组,以及电动致动器,其可操作地与阀门相关联,以在预定的操作频率下将阀门操作到其打开位置并保持阀门打开 直到液滴形成和下降从而确定通过该组件的流体的滴落速率,因此所述内部阀因此能够控制流体流过组件而不需要卷曲或其它变形,从而导致可靠和准确的控制 要静脉注射的流体的流速。

    Transmit data FIFO for flow controlled data
    4.
    发明授权
    Transmit data FIFO for flow controlled data 失效
    发送流量控制数据的数据FIFO

    公开(公告)号:US5960215A

    公开(公告)日:1999-09-28

    申请号:US712742

    申请日:1996-09-12

    摘要: A method and apparatus for transferring data units between a host memory and a peripheral interface, the data units being subject to a flow control mechanism whereby some of said data units are flow controlled and some of said data units are not. Two transmit buffer memories are coupled to the peripheral interface; one for storing controlled data units to be transferred to the peripheral interface and the other for storing uncontrolled data units to be transferred to the peripheral interface. A single request buffer stores successive requests for data to be transferred from a host memory to either of the two transmit buffer memories. Data transfer circuitry transfers data from the host memory to either of the two transmit buffer memories in response to the requests stored in the request buffer. The data transfer circuitry is prevented from transferring further data from the host memory to the transmit buffer memory storing the controlled data units when it is determined that there is not enough room in the transmit buffer memory storing the controlled data units to accommodate another data unit. The data transfer circuitry is allowed, however, to transfer further data from the host memory to the transmit buffer memory storing the uncontrolled data units.

    摘要翻译: 一种用于在主机存储器和外围接口之间传送数据单元的方法和装置,所述数据单元经受流量控制机制,由此一些所述数据单元被流控制,并且所述数据单元中的一些不是。 两个发送缓冲存储器耦合到外围接口; 一个用于存储要传送到外围接口的受控数据单元,另一个用于存储要传送到外围接口的不受控制的数据单元。 单个请求缓冲器将要从主机存储器传送的数据的连续请求存储到两个发送缓冲存储器中的任一个。 数据传输电路响应于存储在请求缓冲器中的请求,将数据从主机存储器传送到两个发送缓冲存储器中的任一个。 当确定存储受控数据单元以容纳另一个数据单元的发送缓冲存储器中没有足够的空间时,防止数据传送电路将另外的数据从主机存储器传送到存储受控数据单元的发送缓冲存储器。 然而,允许数据传输电路将另外的数据从主机存储器传送到存储非受控数据单元的发送缓冲存储器。

    Method and apparatus for controlling congestion in a network node
    5.
    发明授权
    Method and apparatus for controlling congestion in a network node 失效
    控制网络节点拥塞的方法和装置

    公开(公告)号:US5867480A

    公开(公告)日:1999-02-02

    申请号:US712683

    申请日:1996-09-12

    摘要: In a network node having a host system coupled to a network by an adapter, VC-specific congestion is detected and reported to the host system. The host memory includes rx slots or buffers, each corresponding to one of one or more supported slot types. Per-VC slots consumed counters are maintained to count slot consumption for each active VC. Free buffer FIFOs are maintained for each of the one or more slot types, which have a predetermined congestion threshold associated therewith. Entries in each free buffer FIFO correspond to an rx slot posted by the host system. When a new rx slot or buffer in host memory is to be allocated to an incoming cell received on a given VC, the slots consumed counter is compared to the predetermined congestion threshold. If they are equal, the VC is at threshold level and the incoming cell is discarded and a report is sent to the host system. If the slots consumed counter is below threshold, a new rx slot is allocated for the reception of the data and the slots consumed counter is incremented. If the VC is credit-based flow control enabled and the slots consumed counter is below threshold, a credit is returned. If the VC is credit-based flow control enabled and the slots consumed counter is greater than or equal to the threshold, the credit return is deferred until the counter falls below threshold.

    摘要翻译: 在具有通过适配器耦合到网络的主机系统的网络节点中,检测到VC特定的拥塞并将其报告给主机系统。 主机存储器包括rx时隙或缓冲器,每个对应于一个或多个支持的时隙类型之一。 维护每个VC槽消耗的计数器以计算每个活动VC的时隙消耗。 对于具有与其相关联的预定拥塞阈值的一个或多个时隙类型中的每一个,维持空闲缓冲器FIFO。 每个空闲缓冲区FIFO中的条目对应于由主机系统发布的rx时隙。 当将主机存储器中的新的rx时隙或缓冲区分配给在给定VC上接收到的传入小区时,将这些时隙消耗的计数器与预定拥塞阈值进行比较。 如果它们相等,则VC处于阈值级别,并且传入的信元被丢弃并且报告被发送到主机系统。 如果消耗的时隙计数器低于阈值,则为数据的接收分配一个新的rx时隙,并增加消耗的时隙计数器。 如果VC是启用了基于信用的流量控制,并且消耗的消费计数器低于阈值,则返回信用。 如果VC是启用了基于信用的流量控制,并且消费的时隙计数器大于或等于该阈值,那么信用回报被推迟到计数器低于阈值。

    Multiple grade cemented carbide articles and a method of making the same
    7.
    发明授权
    Multiple grade cemented carbide articles and a method of making the same 失效
    多级硬质合金制品及其制造方法

    公开(公告)号:US5543235A

    公开(公告)日:1996-08-06

    申请号:US233388

    申请日:1994-04-26

    IPC分类号: B22F7/06 B22F3/12

    摘要: The present invention provides multiple grade, composite cemented carbide articles and a method of making such articles. The cemented carbide articles comprise carbides of different grades (or different compositions and/or microstructures) and, therefore, correspondingly different properties at different locations in the same article. The method of the present invention comprises filling different areas or portions of a die with metallurgical powders having different compositions and/or microstructures. The powder is then compressed as a single compact in the die cavity. The compressed compact is subsequently sintered to produce a multigrade cemented carbide article having composition and/or microstructural variations within the volume of the article.

    摘要翻译: 本发明提供多级复合硬质合金制品及其制造方法。 硬质合金制品包括不同等级(或不同的组成和/或微观结构)的碳化物,因此在相同制品中的不同位置处相应地具有不同的性质。 本发明的方法包括用具有不同组成和/或微结构的冶金粉末填充模具的不同区域或部分。 然后将粉末作为单个压块压缩在模腔中。 压缩的压块随后被烧结以产生在制品的体积内具有组成和/或微结构变化的多层硬质合金制品。

    Fast arbiter having easy scaling for large numbers of requesters, large
numbers of resource types with multiple instances of each type, and
selectable queing disciplines
    8.
    发明授权
    Fast arbiter having easy scaling for large numbers of requesters, large numbers of resource types with multiple instances of each type, and selectable queing disciplines 失效
    快速仲裁器可以方便地为大量的请求者定标,大量的资源类型,每种类型的多个实例,以及可选择的排队规则

    公开(公告)号:US5313641A

    公开(公告)日:1994-05-17

    申请号:US1134

    申请日:1993-01-06

    IPC分类号: G06F13/362 G06F13/14

    CPC分类号: G06F13/362

    摘要: An arbitration mechanism for controlling a coupling order between a number of resources and a number of requesters having a number of requests processing units, one associated with each one of the requesters, for receiving a resource type request signal from the associated requester, a number of grant processing units, one associated with each one of the resources, for monitoring a busy status signal from said associated resource, a common broadcast medium coupled to the number of request processing units and the grant processing units, and an arbiter for granting access to said common broadcast medium to one of the request processing units and the grant processing units using the common broadcast medium to control the coupling order between the requesters and the resources in a first come, first served manner.

    摘要翻译: 一种用于控制多个资源与具有多个请求处理单元的请求者之间的耦合顺序的仲裁机制,一个与请求者中的每一个相关联的请求者,用于从相关联的请求者接收资源类型请求信号,多个 授权处理单元,与每个资源相关联的一个,用于监视来自所述相关资源的繁忙状态信号;耦​​合到所述多个请求处理单元和所述授权处理单元的公共广播媒体;以及仲裁器,用于授予对所述 公共广播介质到请求处理单元之一以及使用公共广播介质的授权处理单元,以先到先得的方式控制请求者与资源之间的耦合顺序。

    Method and apparatus for avoiding control reads in a network node
    10.
    发明授权
    Method and apparatus for avoiding control reads in a network node 有权
    用于避免网络节点中的控制读取的方法和装置

    公开(公告)号:US6067563A

    公开(公告)日:2000-05-23

    申请号:US306588

    申请日:1999-05-06

    摘要: A mechanism for avoiding an initiation of control read transactions on a system bus coupling a host system having a host memory and an interface connected to a peripheral unit as data is moved between the host system and the peripheral unit is presented. Control information associated with data memory portions in host memory is written to the interface for data memory portions storing outgoing data and data memory portions to receive incoming data. The interface includes a controller to move data between the host memory and the interface by first obtaining the control information for the associated data portions. The interface writes status reports in association with the movement of data between the interface and the host memory via the system bus. The mechanism thus enables data transfers to occur via the system without the initiation of control reads in absence of an exception condition.

    摘要翻译: 提出了一种用于避免在系统总线上启动控制读取事务的机制,该系统总线耦合具有主机存储器的主机系统和连接到外围单元的接口,因为数据在主机系统和外围设备之间移动。 将与主机存储器中的数据存储器部分相关联的控制信息写入存储输出数据和数据存储器部分的数据存储器部分的接口以接收输入数据。 该接口包括控制器,用于通过首先获得相关联的数据部分的控制信息来在主机存储器和接口之间移动数据。 该接口通过系统总线写入与接口和主机存储器之间的数据移动相关联的状态报告。 因此,该机制使得能够在没有异常条件的情况下通过系统进行数据传输而不启动控制读取。