System for disabling oximeter in presence of ambient light
    1.
    发明授权
    System for disabling oximeter in presence of ambient light 失效
    存在环境光时禁用血氧计的系统

    公开(公告)号:US5341804A

    公开(公告)日:1994-08-30

    申请号:US977978

    申请日:1992-11-18

    IPC分类号: A61B5/00 G01N21/27

    摘要: A system for disabling an oximetric device when radiation-carrying channels are exposed to excess ambient radiation is disclosed. It includes a transmitter channel adjacent the sample to be measured, means for isolating the channel from the sample so that it does not carry radiation reflected from or transmitted through the sample, a detector for receiving the transmitted signal, if any, and means for disabling the output in response to the transmitted signal. Preferably, the transmitter channel runs parallel to other transmitter channels in the device, and is isolated from undue ambient light. The system preferably includes means for determining when the second transmitted signal exceeds background noise and the output is disabled when the second transmitted signal exceeds background noise. In general, the sample is a fluid, usually blood, passing through a cuvette adjacent the fiber-optic channels, the cuvette defining an area of radiation absorption adjacent the transmitter channel so that the transmitter does not carry reflected or transmitted radiation from the sample. Also disclosed is a fiber-optic sensor for measuring components of a composition by detecting transmitted or reflected, usually reflected, radiation including such a system, and the cuvette therefore. Finally, a method of disabling the output of an oximetric device when the fiber-optic channels are exposed to undue ambient radiation is disclosed.

    摘要翻译: 公开了一种当辐射承载通道暴露于过量环境辐射时使得血压测定装置失效的系统。 它包括与要测量的样本相邻的发射机信道,用于将信道与样本隔离的装置,使得其不携带从样本反射或透射的辐射,用于接收发射信号的检测器(如果有的话)以及用于禁用的装置 响应于所发送的信号的输出。 优选地,发射机信道平行于设备中的其他发射机信道,并且与不适当的环境光隔离。 系统优选地包括用于确定第二发射信号何时超过背景噪声的装置,并且当第二发射信号超过背景噪声时输出被禁用。 通常,样品是流体,通常为血液,通过与光纤通道相邻的比色杯,比色皿限定了邻近发射器通道的辐射吸收区域,使得发射器不携带来自样品的反射或透射的辐射。 还公开了一种用于通过检测包括这种系统的透射或反射的,通常被反射的辐射来测量组合物的组分的光纤传感器,以及因此的比色皿。 最后,公开了当光纤通道暴露于不适当的环境辐射时禁用血压计的输出的方法。

    System for disabling oximeter in presence of ambient light

    公开(公告)号:US5282466A

    公开(公告)日:1994-02-01

    申请号:US770672

    申请日:1991-10-03

    IPC分类号: A61B5/00 G01N21/27

    摘要: A system for disabling an oximetric device when radiation-carrying channels are exposed to excess ambient radiation is disclosed. It includes a transmitter channel adjacent the sample to be measured, means for isolating the channel from the sample so that it does not carry radiation reflected from or transmitted through the sample, a detector for receiving the transmitted signal, if any, and means for disabling the output in response to the transmitted signal. Preferably, the transmitter channel runs parallel to other transmitter channels in the device, and is isolated from undue ambient light. The system preferably includes means for determining when the second transmitted signal exceeds background noise and the output is disabled when the second transmitted signal exceeds background noise. In general, the sample is a fluid, usually blood, passing through a cuvette adjacent the fiber-optic channels, the cuvette defining an area of radiation absorption adjacent the transmitter channel so that the transmitter does not carry reflected or transmitted radiation from the sample. Also disclosed is a fiber-optic sensor for measuring components of a composition by detecting transmitted or reflected, usually reflected, radiation including such a system, and the cuvette therefore. Finally, a method of disabling the output of an oximetric device when the fiber-optic channels are exposed to undue ambient radiation is disclosed.

    Method and system for placement of electrical lead inside heart
    3.
    发明授权
    Method and system for placement of electrical lead inside heart 有权
    电线内置心脏的方法和系统

    公开(公告)号:US08409219B2

    公开(公告)日:2013-04-02

    申请号:US12570390

    申请日:2009-09-30

    IPC分类号: A61B19/00

    摘要: A method of placing an electrical lead of an implantable cardiac device inside a heart of a patient. The method includes securing a tool to an atrial appendage of the heart to hold onto the atrial appendage, piercing the atrial appendage, and creating an aperture in the atrial appendage while holding the atrial appendage with the tool. The method also includes moving a distal end of the electrical lead into the heart through the aperture in the atrial appendage and into a ventricle of the heart. Furthermore, the method includes coupling the distal end of the electrical lead to cardiac tissue in the ventricle and delivering an electrical signal to the cardiac tissue in the ventricle of the heart to maintain a predetermined heartbeat of the heart.

    摘要翻译: 将可植入心脏装置的电引线放置在患者心脏内的方法。 该方法包括将工具固定到心脏的心房附着物,以固定在心房附近,刺穿心房附件,以及在用该工具持有心房附件的同时创建心房附近的孔。 该方法还包括通过心耳中的孔将电引线的远端移动到心脏中并进入心脏的心室。 此外,该方法包括将电导线的远端耦合到心室中的心脏组织,并将电信号传送到心脏心室的心脏组织以维持心脏的预定心跳。

    Bilumen guide catheters for accessing cardiac sites
    5.
    发明授权
    Bilumen guide catheters for accessing cardiac sites 有权
    用于进入心脏部位的腹导管导管

    公开(公告)号:US08509916B2

    公开(公告)日:2013-08-13

    申请号:US10319245

    申请日:2002-12-16

    IPC分类号: A61N1/05

    CPC分类号: A61N1/056 A61N2001/0578

    摘要: Bilumen catheters and methods of using same for facilitating implantation of cardiac leads for applying electrical stimulation to and/or sensing electrical activity of the heart through one or more electrode positioned at an implantation site within a heart chamber or cardiac vessel adjacent a heart chamber, and more particularly to a method and apparatus for introducing such a cardiac lead having low torqueability and pushability through a tortuous pathway to enable attachment of the cardiac lead at the implantation site employing a bilumen guide catheter are disclosed. The bilumen catheter body includes a relatively large diameter delivery lumen to introduce a small diameter cardiac lead and a small diameter guide lumen to receive a stylet or guidewire to locate the guide catheter body distal end at the implantation site. The small diameter lumen within a small diameter guide tube extends distally from the delivery exit port of the delivery lumen.

    摘要翻译: 白细胞导管及其使用方法,用于促进心脏引线的植入,用于通过位于心室或邻近心室的心脏腔内的植入部位的一个或多个电极施加电刺激和/或感测心脏的电活动,以及 更具体地涉及一种用于通过曲折路径引入具有低可逆性和推动性的这种心脏引线以使得能够使用柏油导引导管在植入部位处附着心脏引线的方法和装置。 胆囊导管主体包括相对大直径的输送腔,以引入小直径心脏引线和小直径引导腔,以接收探针或导丝,以将引导导管主体远端定位在植入部位。 小直径导管内的小直径内腔从输送腔的输送出口向远端延伸。

    Method of making ultrasonically welded, staked of swaged components in an implantable medical device
    8.
    发明授权
    Method of making ultrasonically welded, staked of swaged components in an implantable medical device 有权
    在可植入医疗器械中超声波焊接,锻压组件的方法

    公开(公告)号:US06205358B1

    公开(公告)日:2001-03-20

    申请号:US09159119

    申请日:1998-09-23

    IPC分类号: A61N1362

    CPC分类号: A61N1/375 Y10T29/49174

    摘要: The present invention generally relates to implantable medical devices and more particularly to various means for ultrasonically welding, swaging or staking various components in an implantable medical device, most preferably by employing appropriately configured covers or lids. Covers or lids are attached to header or connector modules mounted on an hermetically enclosed and sealed enclosure, where the connector or header module and enclosure comprise an implantable medical device. The covers or lids preferably trap or otherwise secure any of a number of various connector or header module components within the header or connector modules. Examples of such trapped or secured components include grommets, set screw connector blocks, seals, feedthrough wires, multi-beam contacts, electrical contacts, antennas, radio-opaque markers, connector ribbons and the like.

    摘要翻译: 本发明总体上涉及可植入医疗装置,更具体地说,涉及用于在植入式医疗装置中超声波焊接,锻压或铆接各种部件的各种装置,最优选地采用适当配置的盖子或盖子。 盖子或盖子连接到安装在密封和密封的外壳上的插头或连接器模块,其中连接器或插头模块和外壳包括可植入的医疗装置。 盖子或盖子优选地捕获或以其他方式固定头部或连接器模块内的多个连接器或头部模块组件中的任何一个。 这种被捕获或固定部件的实例包括垫圈,固定螺钉连接器块,密封件,馈通线,多梁接触件,电触头,天线,不透射线的标记,连接器带等。

    Polyetherimide resin/polyester resin blends having improved properties
    9.
    发明授权
    Polyetherimide resin/polyester resin blends having improved properties 有权
    具有改进性能的聚醚酰亚胺树脂/聚酯树脂共混物

    公开(公告)号:US6150473A

    公开(公告)日:2000-11-21

    申请号:US211304

    申请日:1998-12-14

    摘要: The present invention is directed to a thermoplastic resin composition comprising one or more polyetherimide resins; one or more polyester resins; at least one epoxy compound having one or more epoxy functional groups per molecule in an amount effective to improve at least one of impact resistance, hydrolytic resistance, and tab-bending performance of a molded specimen of the composition; and optionally, at least one catalyst in an amount effective to improve at least one of impact resistance, hydrolytic resistance, and tab-bending performance of a molded specimen of the composition as compared to the same composition not containing the catalyst. It was unexpectedly found that the compositions exhibited enhanced heat, impact, hydrolytic resistance, and/or enhanced tab-bending performance over other compositions known in the art. In a preferred embodiment, the epoxy compound contains 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate and the catalyst contains sodium stearate.

    摘要翻译: 本发明涉及一种包含一种或多种聚醚酰亚胺树脂的热塑性树脂组合物; 一种或多种聚酯树脂; 至少一种每分子具有一个或多个环氧官能团的环氧化合物,其量可以有效地改善组合物的模制样品的抗冲击性,抗水解性和弯曲弯曲性能中的至少一种; 和任选的至少一种催化剂,其量可以有效地改善与不含催化剂的相同组合物相比,该组合物的模塑试样的耐冲击性,耐水解性和弯曲弯曲性能中的至少一种。 意外地发现,与本领域已知的其它组合物相比,组合物显示出增强的热,冲击,抗水解性和/或增强的弯片弯曲性能。 在优选的实施方案中,环氧化合物含有3,4-环氧环己基甲基-3,4-环氧环己烷羧酸酯,催化剂含有硬脂酸钠。

    Epicardial lead delivery system and method
    10.
    发明授权
    Epicardial lead delivery system and method 有权
    心外膜导联系统及方法

    公开(公告)号:US07162309B2

    公开(公告)日:2007-01-09

    申请号:US10408426

    申请日:2003-04-07

    IPC分类号: A61N1/05 A61B5/042

    CPC分类号: A61N1/0587 A61N2001/0578

    摘要: A manipulator joined to a distal end of a delivery system shaft includes a plurality of arms and a collar. A proximal portion of each of the arms is joined to the shaft and a distal portion of each of the arms is joined to the collar such that the collar is substantially aligned with a lumen of the shaft. The lumen and the collar slideably and rotatably engage a medical electrical lead while a plurality of control wires, adapted to manipulate the manipulator, join to each of the plurality of manipulator arms in proximity to the distal end of the shaft.

    摘要翻译: 接合到输送系统轴的远端的操纵器包括多个臂和一个套环。 每个臂的近端部分连接到轴,并且每个臂的远端部分连接到轴环,使得轴环基本上与轴的内腔对准。 内腔和套管可滑动地和可旋转地接合医疗电引线,而适于操纵操纵器的多个控制线连接到靠近轴的远端的多个操纵臂中的每一个。