Catheter support
    12.
    发明授权
    Catheter support 有权
    导管支持

    公开(公告)号:US06953470B2

    公开(公告)日:2005-10-11

    申请号:US10241138

    申请日:2002-09-11

    IPC分类号: A61M25/00 A61M29/02 A61M29/00

    摘要: A balloon catheter comprises a balloon, an inner shaft, an outer shaft and a transition shaft. The transition shaft has a proximal portion and a distal portion joined by a tapered portion. The proximal portion has a diameter greater than the distal portion. The proximal portion has a first end portion engaged to at least a portion of the outer shaft at a first engagement site. At least a portion of the proximal waist is engaged to the proximal portion of the transition shaft at a second engagement site. At least a portion of the end region of the inner shaft is engaged to the distal portion of the transition shaft at a third engagement site. The distal portion extends through the balloon wherein at least a portion of the distal waist of the balloon is engaged to the distal portion of the transition shaft at a forth engagement site.

    摘要翻译: 球囊导管包括球囊,内轴,外轴和过渡轴。 过渡轴具有通过锥形部分连接的近端部分和远端部分。 近端部分的直径大于远端部分。 近端部分具有在第一接合位置处接合到外轴的至少一部分的第一端部。 近端腰部的至少一部分在第二接合位置处接合到过渡轴的近侧部分。 内轴的端部区域的至少一部分在第三配合位置处接合到过渡轴的远端部分。 远端部分延伸穿过球囊,其中球囊的远端腰部的至少一部分在第四接合位置处接合到过渡轴的远侧部分。

    Memory expansion channel for propagation of control and request packets
    13.
    发明授权
    Memory expansion channel for propagation of control and request packets 失效
    用于传播控制和请求数据包的内存扩展通道

    公开(公告)号:US06633947B1

    公开(公告)日:2003-10-14

    申请号:US09154063

    申请日:1998-09-16

    IPC分类号: G06F1200

    CPC分类号: G06F13/1684 G06F13/4243

    摘要: A memory system comprising an expansion buffer and a memory expansion channel for connecting a large array of memory devices, such as Direct RDRAMs, to a memory controller. The memory devices are partitioned into subsets of memory devices so that each subset is connected to a unique memory channel for sending and receiving data. The expansion buffer and memory expansion channel provide communication with the memory devices via control packets on the expansion bus, where each control packet has a channel identification field to store a channel identifier; and via request packets on the expansion bus, where each request packet is associated with a control packet. The expansion buffer routes a request packet to a unique channel based upon the channel identifier stored in the associated control packet.

    摘要翻译: 一种存储器系统,包括扩展缓冲器和用于将诸如Direct RDRAM的大量存储器件连接到存储器控制器的存储器扩展通道。 存储器件被划分为存储器件的子集,使得每个子集连接到用于发送和接收数据的唯一存储器通道。 扩展缓冲器和存储器扩展通道通过扩展总线上的控制分组提供与存储器件的通信,其中每个控制分组具有用于存储信道标识符的信道标识字段; 并且经由扩展总线上的请求分组,其中每个请求分组与控制分组相关联。 扩展缓冲器基于存储在相关联的控制分组中的信道标识符将请求分组路由到唯一信道。

    Memory device and system including a low power interface
    14.
    发明授权
    Memory device and system including a low power interface 有权
    存储器件和系统包括低功率接口

    公开(公告)号:US06378018B1

    公开(公告)日:2002-04-23

    申请号:US09169506

    申请日:1998-10-09

    IPC分类号: G06F1300

    摘要: A memory system includes an interconnect structure with a high speed channel and a low speed channel. A memory device with interface circuitry is coupled to the interconnect structure. The interface circuitry includes a high power interface for coupling to the high speed channel and a low power interface for coupling to the low speed channel. The memory device is operative in a low power mode and a high power mode. A memory controller is coupled to the high speed channel and the low speed channel of the interconnect structure. The memory controller is configured to transmit control information over the low speed channel to set the power mode of the memory device. The memory device is operative in a low power mode during which high power receiver circuits are turned off. The memory device is also operative in a nap mode during which an internal clock compensation circuit is left on to preserve phase information. The memory system may include multiple memory devices coupled to a daisy chained lead of the interconnect structure. The memory controller may be configured to apply control information to the interconnect structure as an encoded device identification word. The memory devices may each include a decoder for interpreting the encoded device identification word. The memory controller may be configured to apply a memory device selection signal to the interconnect structure to selectively enable the memory devices.

    摘要翻译: 存储器系统包括具有高速通道和低速通道的互连结构。 具有接口电路的存储器件耦合到互连结构。 接口电路包括用于耦合到高速通道的高功率接口和用于耦合到低速通道的低功率接口。 存储器件在低功率模式和高功率模式下工作。 存储器控制器耦合到互连结构的高速通道和低速通道。 存储器控制器被配置为通过低速信道发送控制信息以设置存储器件的功率模式。 存储器件在低功率模式下工作,在此期间高功率接收器电路被关闭。 存储器装置还可以在休眠模式下工作,在此模式期间内部时钟补偿电路被保留以保持相位信息。 存储器系统可以包括耦合到互连结构的菊花链引导件的多个存储器件。 存储器控制器可以被配置为将控制信息作为编码设备标识字应用于互连结构。 存储器件可以各自包括用于解释编码器件识别字的解码器。 存储器控制器可以被配置为将存储器件选择信号施加到互连结构以选择性地启用存储器件。

    Catheter with removable balloon protector

    公开(公告)号:US6132450A

    公开(公告)日:2000-10-17

    申请号:US211376

    申请日:1998-12-14

    摘要: A balloon catheter is provided having an expandable distal portion and balloon protector means comprising a first removable sleeve having a variable inner diameter to ease sliding the first sleeve over the balloon, and an optional second removable (outer) sleeve positioned over the inner sleeve, the second (outer) sleeve having a constrictive relationship with the first (inner) sleeve, said first and second sleeves being removed prior to use of the catheter. A stent delivery system is provided to facilitate introduction and placement of a stent, and includes a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state, said distal portion further comprising a balloon and at least one dam over which the balloon extends, and a stent positioned around the distal portion of the catheter around the balloon or gripper linear control device, said stent having a contracted condition, being sized in the contracted condition to closely surround the balloon in the contracted state, and being expandable to an expanded condition; a first removable (inner) sleeve in the region of the distal portion of the catheter positioned around the stent (and between the dams where the device comprises two dams), said first sleeve comprising a first end, a second end and a variable inner diameter to ease sliding the sleeve over the balloon and stent; an optional second removable (outer) sleeve positioned over the stent, first sleeve and at least one dam, said second (outer) sleeve having a constrictive relationship with the first (inner) sleeve, whereby when compressed by the outer sleeve, the inner sleeve will have an inner diameter approximately equal to or less than the outer profile of the collapsed balloon over the at least one dam, said first and second sleeves being removed prior to use of the stent delivery system and release of the stent by expansion of the balloon.

    Apparatus and method for closing a septal defect
    16.
    发明授权
    Apparatus and method for closing a septal defect 有权
    闭合中隔缺损的装置和方法

    公开(公告)号:US06117159A

    公开(公告)日:2000-09-12

    申请号:US218381

    申请日:1998-12-22

    IPC分类号: A61B17/00 A61B17/08

    摘要: A catheter delivered device to close a septal defect, the device comprising a cylindrical shaft of metal or polymeric material with concentric parallel cuts through the wall of the device which create flattened support struts. The center of the support struts move radially away from the axis in a hinge like fashion in response to the movement of the device's proximal and distal ends toward the center of the device. This movement is reversibly effected through mechanical means. The device can be coated with growth factors, mitogenic factors or other determinants which can improve tissue growth such that tissue ingrowth can occur over a period of time. The catheter itself may be an ultrasonic imaging catheter.

    摘要翻译: 导管输送装置以闭合隔膜缺损,该装置包括金属或聚合材料的圆柱形轴,穿过穿过该装置的壁的同心平行切口,其形成平坦的支撑支柱。 响应于装置的近端和远端朝向装置的中心的移动,支撑支柱的中心以铰链相似的方式径向地远离轴线移动。 这种运动通过机械手段可逆地实现。 该装置可以涂覆生长因子,促有丝分裂因子或其它决定因素,其可以改善组织生长,使得组织向内生长可以在一段时间内发生。 导管本身可以是超声成像导管。

    Method of reversibly closing a septal defect
    18.
    发明授权
    Method of reversibly closing a septal defect 有权
    可逆闭合中隔缺损的方法

    公开(公告)号:US6024756A

    公开(公告)日:2000-02-15

    申请号:US218380

    申请日:1998-12-22

    IPC分类号: A61B17/00 A61B17/08

    摘要: A catheter delivered device to close a septal defect, the device comprising a cylindrical shaft of metal or polymeric material with concentric parallel cuts through the wall of the device which create flattened support struts. The center of the support struts move radially away from the axis in a hinge like fashion in response to the movement of the device's proximal and distal ends toward the center of the device. This movement is reversibly effected through mechanical means. The device can be coated with growth factors, mitogenic factors or other determinants which can improve tissue growth such that tissue ingrowth can occur over a period of time. The catheter itself may be an ultrasonic imaging catheter.

    摘要翻译: 导管输送装置以闭合隔膜缺损,该装置包括金属或聚合材料的圆柱形轴,穿过穿过该装置的壁的同心平行切口,其形成平坦的支撑支柱。 响应于装置的近端和远端朝向装置的中心的移动,支撑支柱的中心以铰链相似的方式径向地远离轴线移动。 这种运动通过机械手段可逆地实现。 该装置可以涂覆生长因子,促有丝分裂因子或其它决定因素,其可以改善组织生长,使得组织向内生长可以在一段时间内发生。 导管本身可以是超声成像导管。

    Catheter with removable balloon protector and stent delivery system with
removable stent protector

    公开(公告)号:US5893868A

    公开(公告)日:1999-04-13

    申请号:US812351

    申请日:1997-03-05

    摘要: A balloon catheter is provided having an expandable distal portion and balloon protector means comprising a first removable sleeve having a variable inner diameter to ease sliding the first sleeve over the balloon, and an optional second removable (outer) sleeve positioned over the inner sleeve, the second (outer) sleeve having a constrictive relationship with the first (inner) sleeve, said first and second sleeves being removed prior to use of the catheter. A stent delivery system is provided to facilitate introduction and placement of a stent, and includes a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state, said distal portion further comprising a balloon and at least one dam over which the balloon extends, and a stent positioned around the distal portion of the catheter around the balloon or gripper linear control device, said stent having a contracted condition, being sized in the contracted condition to closely surround the balloon in the contracted state, and being expandable to an expanded condition; a first removable (inner) sleeve in the region of the distal portion of the catheter positioned around the stent (and between the dams where the device comprises two dams), said first sleeve comprising a first end, a second end and a variable inner diameter to ease sliding the sleeve over the balloon and stent; an optional second removable (outer) sleeve positioned over the stent, first sleeve and at least one dam, said second (outer) sleeve having a constrictive relationship with the first (inner) sleeve, whereby when compressed by the outer sleeve, the inner sleeve will have an inner diameter approximately equal to or less than the outer profile of the collapsed balloon over the at least one dam, said first and second sleeves being removed prior to use of the stent delivery system and release of the stent by expansion of the balloon.

    Memory controller for independently supporting Synchronous and
Asynchronous DRAM memories
    20.
    发明授权
    Memory controller for independently supporting Synchronous and Asynchronous DRAM memories 失效
    用于独立支持同步和异步DRAM存储器的存储器控​​制器

    公开(公告)号:US5893136A

    公开(公告)日:1999-04-06

    申请号:US956693

    申请日:1997-10-24

    IPC分类号: G06F12/00 G06F13/00 G06F13/16

    CPC分类号: G06F13/1694 Y02B60/1228

    摘要: The present invention provides a method and apparatus in a memory controller coupled between a system bus and memory for independently supporting one of a Synchronous DRAM (SDRAM) and an Asynchronous DRAM (ADRAM) memory type via common signal pins. According to the preferred embodiment, the memory controller comprises memory control logic for generating both SDRAM and ADRAM memory interface signals and multiplexing means for selecting as output onto common signal pins either set of interface signals depending upon a memory type setting programmed within a configuration register. The memory control logic comprises at least a request processor in addition to two memory state machines, one for SDRAM and the other for ADRAM memory operations. When a system bus request is received by the request processor, it is assigned to a request state machine which interacts with both the SDRAM state machine and the ADRAM state machine to generate two sets of memory interface signals in addition to two sets of internal control signals. The sets of signals are input to a multiplexor provided for each type of control signals (i.e., memory interface and internal control), which multiplexors are controlled by the memory type select signal output from the configuration register. Based on the memory type setting programmed into the configuration registers, the appropriate sets of memory interface and internal control signals (i.e., either SDRAM or ADRAM) are selected for output to the memory array and to other units of the memory controller, respectively.

    摘要翻译: 本发明提供一种耦合在系统总线和存储器之间的存储器控​​制器中的方法和装置,用于通过公共信号引脚独立地支持同步DRAM(SDRAM)和异步DRAM(ADRAM)存储器类型之一。 根据优选实施例,存储器控制器包括用于产生SDRAM和ADRAM存储器接口信号的存储器控​​制逻辑和用于根据在配置寄存器内编程的存储器类型设置,将共同信号引脚选择为接口信号的集合的多路复用装置。 除了两个存储器状态机之外,存储器控制逻辑至少包括一个请求处理器,一个用于SDRAM,另一个用于ADRAM存储器操作。 当请求处理器接收到系统总线请求时,它被分配给请求状态机,该请求状态机与SDRAM状态机和ADRAM状态机进行交互,以产生两组存储器接口信号,以及两组内部控制信号 。 这些信号组被输入到为每种类型的控制信号(即,存储器接口和内部控制)提供的多路复用器,该多路复用器由从配置寄存器输出的存储器类型选择信号控制。 基于编程到配置寄存器中的存储器类型设置,选择适当的存储器接口组和内部控制信号(即,SDRAM或ADRAM)以输出到存储器阵列和存储器控制器的其他单元。