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8 条记录 (耗时 0.03 秒)

    Rod introducer forceps
    1.
    发明授权
    Rod introducer forceps 失效
    杆引导钳

    公开(公告)号：US6036692A

    公开(公告)日：2000-03-14

    申请号：US110993

    申请日：1998-07-07

    申请人： Marc H. Burel ,  David L. Brumfield ,  Thomas Barker

    发明人： Marc H. Burel ,  David L. Brumfield ,  Thomas Barker

    IPC分类号： A61B17/56 ,  A61B17/00 ,  A61B17/28 ,  A61B17/88 ,  A61B17/70

    CPC分类号： A61B17/7086

    摘要： Forceps are provided with a bifurcated gripping nose on one end adapted to pivotally engage an implant while a rod passes between the branches of the bifurcated gripping nose. The forceps further define a fulcrum adjacent the gripping nose. The pivotally engaging gripping nose and included fulcrum permit a surgeon to urge the rod into an opening in the implant with a single instrument while securely gripping the implant. With the implant pivotally engaged by the gripping nose, movement of the forceps towards the rod brings the fulcrum into contact with the rod and further movement urges the rod into an opening in the implant. In an alternative form, the gripping nose is laterally offset to urge a laterally offset rod into alignment with the implant upon rotation of the forceps.

    摘要翻译： 镊子在一端设置有分叉夹头，其适于在杆穿过分叉夹头的分支之间枢转地接合植入物。 镊子进一步限定了紧靠着鼻子的支点。 枢转接合的夹持鼻和包括的支点允许外科医生使用单个器械将杆推入植入物中的开口中，同时牢固地夹持植入物。 当植入物由夹紧鼻枢转地接合时，钳子朝向杆的运动使得支点与杆接触，并且进一步的运动将杆推动到植入物中的开口中。 在替代形式中，夹持鼻部被侧向偏移，以在镊子旋转时促使横向偏移杆与植入物对齐。

    Rod introducer forceps
    2.
    发明授权
    Rod introducer forceps 失效

    公开(公告)号：US5810878A

    公开(公告)日：1998-09-22

    申请号：US798091

    申请日：1997-02-12

    申请人： Marc H. Burel ,  David L. Brumfield ,  Thomas Barker

    发明人： Marc H. Burel ,  David L. Brumfield ,  Thomas Barker

    IPC分类号： A61B17/56 ,  A61B17/00 ,  A61B17/28 ,  A61B17/88

    CPC分类号： A61B17/7086

    摘要： Forceps are provided with a bifurcated gripping nose on one end adapted to pivotally engage an implant while a rod passes between the branches of the bifurcated gripping nose. The forceps further define a fulcrum adjacent the gripping nose. The pivotally engaging gripping nose and included fulcrum permit a surgeon to urge the rod into an opening in the implant with a single instrument while securely gripping the implant. With the implant pivotally engaged by the gripping nose, movement of the forceps towards the rod brings the fulcrum into contact with the rod and further movement urges the rod into an opening in the implant. In an alternative form, the gripping nose is laterally offset to urge a laterally offset rod into alignment with the implant upon rotation of the forceps.

    Dental handpiece
    3.
    发明申请
    Dental handpiece 审中-公开
    牙科手机

    公开(公告)号：US20070087303A1

    公开(公告)日：2007-04-19

    申请号：US11401770

    申请日：2006-04-11

    申请人： Tom Papanek ,  Eugene Novak ,  Thomas Barker

    发明人： Tom Papanek ,  Eugene Novak ,  Thomas Barker

    IPC分类号： A61C1/10

    CPC分类号： A61C1/08 ,  A61C1/12 ,  A61C1/16 ,  B22D17/00 ,  B22F3/225 ,  B22F5/00

    摘要： A dental handpiece (10) of the type having a body (11), a head (13) and a neck (12), is improved by having at least one portion of the handpiece (10) formed by metal injection molding or MIM. The use of MIM allows for improved fabrication and function. According to one aspect of the invention, the head (13) and neck (12) of the handpiece (10) are MIM-formed as a single or unitary piece.

    摘要翻译： 通过具有通过金属注射成型或MIM形成的手持件（10）的至少一部分来改进具有本体（11），头部（13）和颈部（12）的类型的牙齿手柄（10）。 MIM的使用允许改进制造和功能。 根据本发明的一个方面，手持件（10）的头部（13）和颈部（12）被形成为单个或整体件。

    Multi-Purpose Polymers, Methods and Compositions
    5.
    发明申请
    Multi-Purpose Polymers, Methods and Compositions 有权
    多用途聚合物，方法和组合物

    公开(公告)号：US20080045646A1

    公开(公告)日：2008-02-21

    申请号：US11876296

    申请日：2007-10-22

    申请人： Krishnan Tamareselvy ,  Thomas Barker ,  Pravinchandra Shah ,  Kittie Ramey

    发明人： Krishnan Tamareselvy ,  Thomas Barker ,  Pravinchandra Shah ,  Kittie Ramey

    IPC分类号： C08L39/00 ,  C08L31/00

    CPC分类号： C08F220/28 ,  C08F220/04 ,  C08F220/36 ,  C08F290/062

    摘要： Disclosed are multi-purpose alkali-swellable and alkali soluble associative polymers, which are the polymerization product of a monomer mixture comprising: (a) at least one acidic vinyl monomer; (b) at least one nonionic vinyl monomer; (c) a first associative monomer having a first hydrophobic end group; (d) a monomer selected from the group consisting of a second associative monomer having a second hydrophobic end, a semihydrophobic monomer and a combination thereof; and, optionally, (e) one or more crosslinking monomers or chain transfer agents. When monomer (d) is an associative monomer, the first and second hydrophobic end groups of monomers (c) and (d) have significantly different hydrophobic and/or steric character from one another. The multi-purpose associative polymers surprisingly provide desirable rheological and aesthetic properties in aqueous media.

    摘要翻译： 公开了多用途碱溶胀性和碱溶性缔合聚合物，它们是单体混合物的聚合产物，其包含：（a）至少一种酸性乙烯基单体; （b）至少一种非离子型乙烯基单体; （c）具有第一疏水性端基的第一缔合单体; （d）选自具有第二疏水末端的第二缔合单体，半疏水单体及其组合的单体; 和（e）一种或多种交联单体或链转移剂。 当单体（d）是缔合单体时，单体（c）和（d）的第一和第二疏水端基彼此之间具有显着不同的疏水和/或空间特性。 多用途缔合聚合物令人惊奇地在含水介质中提供了所需的流变学和美学性质。

    System and method for implementing distributed priority inheritance
    6.
    发明申请
    System and method for implementing distributed priority inheritance 有权
    实现分布式优先级继承的系统和方法

    公开(公告)号：US20060282836A1

    公开(公告)日：2006-12-14

    申请号：US11148329

    申请日：2005-06-09

    申请人： Thomas Barker

    发明人： Thomas Barker

    IPC分类号： G06F9/46

    CPC分类号： G06F9/4887 ,  G06F9/526

    摘要： Priority inheritance is implemented across a distributed system, preferably by use of a mutual exclusion object, referred to as a pseudo-mutex, which provides operations for communicating priority of a task which is held to a different connected processor or node of a network and generating a dummy local command of priority at least equal to that of the held task at the remote processor or node in collaboration with a real-time operating system and middleware. The remote real time operating system then carries out priority inheritance in the normal manner to raise the priority of a blocked task, thus reversing any preemption of that task at the remote processor or node. The increase in priority avoids preemption of lower priority processes and thus increases the execution speed of the executing thread to release the existing lock at an earlier time; allowing a lock to be obtained by the higher priority thread. The middleware serves as an intermediary, communicating messages that include pseudo-mutex arguments or similar communications and requests for enabling priority inheritance across nodes.

    摘要翻译： 优先级继承是通过分布式系统实现的，优选地通过使用被称为伪互斥体的互斥对象来实现，所述对互斥体提供用于传送被保持到网络的不同连接的处理器或节点的任务的优先级的操作，并产生 与实时操作系统和中间件协作，至少等于远程处理器或节点处的任务的至少等同于优先级的虚拟本地命令。 然后，远程实时操作系统以正常方式执行优先级继承，以提高被阻塞任务的优先级，从而在远程处理器或节点处逆转该任务的任何抢占。 优先级的增加避免了较低优先级进程的抢占，从而提高执行线程在较早时间释放现有锁的执行速度; 允许通过较高优先级线程获得锁。 中间件作为中间件，传达包含伪互斥参数或类似通信的消息，以及跨节点启用优先级继承的请求。

    High speed position feedback and comparator system
    7.
    发明授权
    High speed position feedback and comparator system 失效
    高速位置反馈和比较系统

    公开(公告)号：US4282468A

    公开(公告)日：1981-08-04

    申请号：US30079

    申请日：1979-04-16

    申请人： Thomas Barker ,  Andrew L. Russel, Jr. ,  Gary Bricault ,  Albert L. Van Wieren

    发明人： Thomas Barker ,  Andrew L. Russel, Jr. ,  Gary Bricault ,  Albert L. Van Wieren

    IPC分类号： G05B19/35 ,  G05B1/01

    CPC分类号： G05B19/351

    摘要： A positioning system is provided in which command and feedback signals are processed to develop an analog error signal for application to a servo drive to position a controlled element. The command signals are in the form of pulses each of which corresponds to a certain incremental distance of movement. The feedback signals are developed from phase shifts of a low frequency resolver signal, such phase shifts being proportional to movement of the element. Such feedback signals are applied to a resolver digitizer circuit which develops a train of resolver pulses in response to the phase shift represented by each feedback signal. Each such resolver pulse corresponds to the same incremental distance of movement as a command pulse and both the resolver pulses and the command pulses are applied to a comparator and error signal circuit in which any cumulative error in either direction is stored as a digital number and is converted to an analog error signal of the proper polarity. The system effects accurate positioning of an element while accommodating a large temporary following error and thereby allowing movement at high speeds in response to high command pulse frequencies.

    摘要翻译： 提供了一种定位系统，其中处理命令和反馈信号以开发模拟误差信号，以应用于伺服驱动器以定位受控元件。 命令信号是脉冲的形式，每个脉冲对应于一定的增加的移动距离。 反馈信号是由低频解算器信号的相移产生的，这种相移与元件的移动成比例。 这样的反馈信号被施加到解析器数字转换器电路，该解算器数字转换器电路响应于由每个反馈信号表示的相移而产生一系列解算器脉冲。 每个这样的分解器脉冲对应于与指令脉冲相同的增加的移动距离，并且解算器脉冲和指令脉冲都被施加到比较器和误差信号电路，其中任一方向上的任何累积误差被存储为数字数字，并且是 转换成适当极性的模拟误差信号。 该系统在容纳大的临时跟随误差的同时实现元件的精确定位，从而允许响应于高指令脉冲频率而以高速移动。