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    • 2. 发明授权
    • Electrically controlled intravenous infusion set
    • 电控静脉输液器
    • US4038982A
    • 1977-08-02
    • US637208
    • 1975-12-03
    • George K. BurkeRobert J. LeFevreRobert E. ThomasJames W. TurnerPeter L. Krohn
    • George K. BurkeRobert J. LeFevreRobert E. ThomasJames W. TurnerPeter L. Krohn
    • A61M5/00A61M5/168A61M5/14
    • A61M5/1689Y10S128/13Y10T137/7761
    • 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.
    • 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。
    • 3. 发明授权
    • Electronically controlled intravenous infusion set
    • 电控静脉输液器
    • US4038981A
    • 1977-08-02
    • US637206
    • 1975-12-03
    • Robert J. LeFevreRobert E. Thomas
    • Robert J. LeFevreRobert E. Thomas
    • A61M5/168A61M5/16
    • A61M5/1411A61M5/1689Y10S128/13Y10T137/7761
    • 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.
    • 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。
    • 4. 发明授权
    • Transmit data FIFO for flow controlled data
    • 发送流量控制数据的数据FIFO
    • US5960215A
    • 1999-09-28
    • US712742
    • 1996-09-12
    • Robert E. ThomasRobert J. SimcoePeter J. RomanKoichi Tanaka
    • Robert E. ThomasRobert J. SimcoePeter J. RomanKoichi Tanaka
    • G06F13/12H04L12/56H04Q11/04G06F13/00
    • H04L47/10G06F13/128H04L49/309H04L49/90H04L49/901H04L49/9078H04Q11/0478H04L2012/5652H04L2012/5658H04L2012/5679H04L2012/5681
    • 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.
    • 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。
    • 5. 发明授权
    • Method and apparatus for controlling congestion in a network node
    • 控制网络节点拥塞的方法和装置
    • US5867480A
    • 1999-02-02
    • US712683
    • 1996-09-12
    • Robert E. ThomasKoichi TanakaPeter J. RomanWing CheungShinichi Mizuguchi
    • Robert E. ThomasKoichi TanakaPeter J. RomanWing CheungShinichi Mizuguchi
    • H04L12/56G01R31/08G06F11/00G08C15/00
    • H04L12/5602H04L2012/5635H04L2012/5637H04L2012/5679
    • 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.
    • 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。