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    • 3. 发明授权
    • Pivoting dilator
    • 枢转扩张器
    • US08795165B2
    • 2014-08-05
    • US11650689
    • 2007-01-08
    • Donald SchonTimothy SchweikertJohn Stephens
    • Donald SchonTimothy SchweikertJohn Stephens
    • A61B17/02
    • A61M29/00A61B17/02A61B17/3439A61M25/0668
    • A dilator (100) for expanding a vessel incision to assist insertion of a catheter thereinto and having a distal end (104) and a proximal end (106). The dilator has two portions (110,210) that are assembled together at a hinge (112,212) permitting angled-apart proximal ends (122,222) of the two portions at the proximal end (106) to be squeezed together about the hinge which slightly spreads apart the respective distal ends (114,214) of the two portions to enlarge the incision into the vessel. A spring (150) biases apart the proximal ends of the two portions to maintain the two distal ends (114,214) together until pried apart as desired to dilate the vessel incision.
    • 1.一种用于扩张血管切口以辅助将导管插入其中并具有远端(104)和近端(106)的扩张器(100)。 扩张器具有在铰链(112,212)处组装在一起的两个部分(110,210),允许在近端(106)处的两个部分的角度分开的近端(122,222)围绕铰链略微展开, 两个部分的相应远端(114,214),以将切口扩大到容器中。 弹簧(150)将两个部分的近端偏置,以将两个远端(114,214)保持在一起,直到根据需要分开以扩张血管切口。
    • 4. 发明申请
    • PUMP
    • US20120251368A1
    • 2012-10-04
    • US13514203
    • 2010-11-23
    • Philip John StephensIan David StonesMalcolm William GrayPaul David Neller
    • Philip John StephensIan David StonesMalcolm William GrayPaul David Neller
    • F04C29/02F04C2/00F04C29/00
    • F04C25/02F04C23/001F04C27/009F04C27/02F04C28/02F04C29/0092F04C2220/12
    • The present invention provides a positive displacement dry pump comprising: a plurality of vacuum pumping stages comprising a respective plurality of pumping mechanisms driven by one or more drive shafts for pumping fluid in series through the pumping stages from a pump inlet at the high vacuum stage to a pump outlet at the low vacuum stage; a lubrication chamber housing a bearing assembly for supporting the drive shaft for rotational movement, the drive shaft extending from the high vacuum stage to the lubrication chamber through an opening of a head plate of the lubrication chamber; an inter-stage purge port through which gas can enter the pump at an inter-stage location downstream of the high vacuum stage and pass only through the or each vacuum pumping stage downstream of the inter-stage port; a lubrication chamber purge port located in the lubrication chamber through which purge gas can flow from a source of purge gas; wherein the inter-stage port is connected to the lubrication chamber for controlling the pressure of purge gas in the lubrication chamber thereby resisting the passage of pumped gases from the high vacuum chamber to the lubrication chamber through the opening of the head plate during use.
    • 本发明提供一种容积式干式泵,其包括:多个真空泵送级,其包括由一个或多个驱动轴驱动的相应的多个泵送机构,用于将高压真空级的泵入口串联泵送流体, 在低真空级的泵出口; 润滑室,其容纳用于支撑用于旋转运动的驱动轴的轴承组件,所述驱动轴通过所述润滑室的头板的开口从所述高真空级延伸到所述润滑室; 一个级间清洗口,气体可以在高真空级下游的一个级间位置进入泵,并仅通过该级间端口下游的每个真空泵送级; 位于所述润滑室中的润滑室吹扫口,吹扫气体可以通过所述润滑室从所述吹扫气体源流出; 其中所述级间端口连接到所述润滑室,用于控制所述润滑室中的吹扫气体的压力,由此抵抗在使用期间通过所述头板的打开从所述高真空室到所述润滑室的泵送气体的通过。
    • 5. 发明授权
    • Splittable multiple catheter assembly
    • 可分离多导管组件
    • US07918817B2
    • 2011-04-05
    • US10974267
    • 2004-10-27
    • Donald A. SchonJohn StephensEarl W. Voorhees, Jr.Timothy SchweikertKevin SanfordMahase Nardeo
    • Donald A. SchonJohn StephensEarl W. Voorhees, Jr.Timothy SchweikertKevin SanfordMahase Nardeo
    • A61M3/00
    • A61M25/0026A61M1/3661A61M25/0023A61M25/0029A61M25/0194A61M2025/0031A61M2025/0034A61M2025/0037
    • A multiple catheter assembly (100) including a first catheter (110) constructed from a first material and having a first proximal end region (112), a first distal end region (114) terminating in a first distal tip (116), and an outer surface (120) defining at least a first lumen (122) extending longitudinally therethrough between a first distal (118) and a first proximal (111) opening. The first proximal end region (112) is integrally connected to an extension tube (320) constructed from a second material. A second catheter (130) is constructed from the first material and having a second proximal end region (132), a second distal end region (134) terminating in a second distal tip (136), and a second outer surface (140) defining at least a second lumen (142) extending longitudinally therethrough between a second distal (138) and a second proximal (131) opening. The second proximal end region (132) is integrally connected to an extension tube (350) constructed from the second material. The first lumen (122) and the second lumen (142) are independent from each other for facilitating simultaneous flow in opposite directions. The outer surfaces (120, 140) of the first and second catheters are releasably joined for allowing the first and second distal tips (116, 136) to be at least partially longitudinally split from each other.
    • 一种多导管组件(100),包括由第一材料构成并具有第一近端区域(112)的第一导管(110),终止于第一远端尖端(116)的第一远端区域(114) 外表面(120)限定在第一远端(118)和第一近端(111)开口之间至少延伸穿过其中的第一腔(122)。 第一近端区域(112)与由第二材料构成的延伸管(320)整体连接。 第二导管(130)由第一材料构成并具有第二近端区域(132),终止于第二远侧末端(136)的第二远端区域(134)和限定 至少第二腔(142),其在第二远端(138)和第二近端(131)开口之间纵向延伸通过。 第二近端区域(132)与由第二材料构成的延伸管(350)整体连接。 第一管腔(122)和第二管腔(142)彼此独立以便于沿相反方向同时流动。 第一和第二导管的外表面(120,140)可释放地接合,以允许第一和第二远端尖端(116,136)至少部分地彼此纵向分开。
    • 6. 发明授权
    • Methods of implanting a dual catheter
    • 植入双导管的方法
    • US07914518B2
    • 2011-03-29
    • US11646019
    • 2006-12-27
    • J. Daniel RaulersonJohn Stephens
    • J. Daniel RaulersonJohn Stephens
    • A61M5/00A61M39/00A61M31/00
    • A61M5/1418A61M25/013A61M2025/024A61M2025/09116
    • A clamp (110) for releasably clamping a catheter, including a body having a first portion (112), a second portion (122), and a hinge (132) connecting the first portion and the second portion, such that the first portion is disposed to face the second portion. The first portion (112) includes a tab (134) extending distal from the hinge (132) and wherein the second portion (122) includes a locking means (146) for releasably locking the tab (134) to the second portion (122). A method of releasably clamping a plurality of catheter lumens (100,102) during catheter insertion and a method of locating a catheter insertion distance based on the location of the clamp are also disclosed.
    • 一种用于可释放地夹紧导管的夹具(110),包括具有连接第一部分和第二部分的第一部分(112),第二部分(122)和铰链(132)的本体,使得第一部分 设置成面对第二部分。 第一部分(112)包括从铰链(132)的远侧延伸的凸片(134),并且其中第二部分(122)包括用于将凸片​​(134)可释放地锁定到第二部分(122)的锁定装置(146) 。 还公开了一种在导管插入期间可释放地夹紧多个导管腔(100,102)的方法以及基于夹具位置定位导管插入距离的方法。
    • 7. 发明授权
    • Pre-curved catheter tip
    • 预弯曲导管夹
    • US07678083B2
    • 2010-03-16
    • US11210549
    • 2005-08-23
    • John Stephens
    • John Stephens
    • A61M5/32A61B17/06A61B19/02A61C15/00B65D83/10
    • A61M5/1418A61M25/00A61M25/0041
    • A catheter retaining clip (100) including first and second generally straight body portions (104,106), each of which extends along a longitudinal axis parallel to the other and includes a retention section. The generally straight body portions are connected by an extension piece (116 or 240) that extends generally from one generally straight body portion to the other generally straight body portion. The extension piece (116) may extend around a 180° curve that defines the curve of the catheter to be inserted into the clip, and a U-shaped channel (120) extends through the first and second generally straight body portions and the extension piece; the clip is installed onto a catheter (50) so that the catheter lies in the U-shaped channel and is retained therein by two or three retention sections or locking clasps (130). The present invention also provides methods of installing a catheter within the clip and methods of removing a catheter from within the clip.
    • 一种导管保持夹(100),包括第一和第二大致直的主体部分(104,106),每个主体部分沿着平行于另一个的纵向轴线延伸并且包括保持部分。 大致直的主体部分通过延伸件(116或240)连接,该延伸件大体上从一个大致直的主体部分延伸到另一个大致直的主体部分。 延伸片(116)可以围绕限定待插入夹子的导管的曲线的180°曲线延伸,并且U形通道(120)延伸穿过第一和第二大致直的主体部分,并且延伸片 ; 将夹子安装到导管(50)上,使得导管位于U形通道中并通过两个或三个保持部分或锁定扣(130)保持在其中。 本发明还提供了在夹子内安装导管的方法和从夹子内取出导管的方法。
    • 8. 发明申请
    • Low-overhead/power-saving processor synchronization mechanism, and applications thereof
    • 低架空/省电处理器同步机制及其应用
    • US20090063881A1
    • 2009-03-05
    • US11896424
    • 2007-08-31
    • Nigel John Stephens
    • Nigel John Stephens
    • G06F9/30G06F1/32
    • G06F1/3203G06F1/329G06F9/3004G06F9/30072G06F9/30087G06F9/30123G06F9/3851G06F9/3885Y02D10/24Y02D50/20
    • A low-overhead/power-saving processor synchronization mechanism, and applications thereof. In an embodiment, the present invention provides a processor having a load-linked register. The processor implements instructions related to the load-linked register. A first instruction, when executed by the processor, causes the processor to load a first value specified by the first instruction in a first register of a register file and to load a second value in the load-linked register. A second instruction, when executed by the processor, causes the processor to suspend execution of a stream of instructions associated with the load-linked register if the second value in the load-linked register is unaltered until the second value in the load-linked register is altered. A third instruction, when executed by the processor, causes the processor to conditionally move a third value to a memory location specified by the third instruction and to move a value representing the state of the load-linked register to the third register.
    • 低架空/省电处理器同步机制及其应用。 在一个实施例中,本发明提供一种具有负载连接寄存器的处理器。 处理器实现与负载链接寄存器相关的指令。 当由处理器执行时,第一指令使处理器将由第一指令指定的第一值加载到寄存器堆的第一寄存器中,并在加载链接寄存器中加载第二值。 第二条指令在由处理器执行时,如果加载链接寄存器中的第二个值不变,直到加载链接寄存器中的第二个值,处理器将暂停执行与加载链接寄存器相关联的指令流 被改变 第三指令在由处理器执行时使处理器有条件地将第三值移动到由第三指令指定的存储器位置,并将表示加载链接寄存器的状态的值移动到第三寄存器。
    • 9. 发明申请
    • Catheter tunneler adapter and methods of assembly to a catheter and use
    • 导管隧道适配器和组装到导管和使用的方法
    • US20080097409A1
    • 2008-04-24
    • US11973550
    • 2007-10-09
    • John Stephens
    • John Stephens
    • A61M39/00
    • A61B17/3415A61B2017/320056A61M25/0102A61M25/0194A61M39/10A61M39/105A61M2025/0034A61M2025/0037A61M2039/1077
    • A catheter tunneling adapter (10) including a generally elongated body (12) having a proximal end (14), a distal end (16) and a through passageway (18) extending therethrough between the proximal and distal end. The proximal end (14) of the adapter (10) is connectable both to a proximal hub of a stylet (70) and subsequently to the distal end (84,94) of a tunneler (80,90). The distal end (16) of the adapter (10) comprises a connector for connecting a plurality of proximal catheter tubes (52,54) thereto, wherein the proximal end of one tube (52) is affixed within the passageway at the adapter's distal end (16) and the proximal end of the second tube (54) is plugged by a plug (40) extending distally from a free end of an elongate flexible arm (30) that also extends distally of the adapter's distal end (16), such that the plug is offset laterally therefrom. The flexible arm (30) and the affixed second tube end (58) are deflectable toward the first tube (52) to reduce the profile of the assembly during tunneling. Methods of affixing an adapter to a catheter, of inserting a catheter into a patient, and of subcutaneously tunneling a catheter under a patient's skin using the tunneling device, are also disclosed.
    • 导管隧穿适配器(10),其包括具有近端(14)的大体上细长的主体(12),在近端和远端之间延伸穿过的远端(16)和通过通道(18)。 适配器(10)的近端(14)可连接到探针(70)的近端毂并且随后连接到隧道(80,90)的远端(84,94)。 适配器(10)的远端(16)包括用于将多个近侧导管(52,54)连接到其上的连接器,其中一个管(52)的近端在适配器的远端固定在通道内 (16)并且所述第二管(54)的近端被从所述适配器的远端(16)的远侧延伸的细长柔性臂(30)的自由端向远侧延伸的塞子(40)堵塞, 插头从其横向偏移。 柔性臂(30)和固定的第二管端(58)可朝着第一管(52)偏转,以减少隧道期间组件的轮廓。 还公开了将适配器固定到导管,将导管插入患者体内的方法,以及使用隧道装置将导管皮下穿透患者皮肤的方法。