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31 条记录 (耗时 0.011 秒)

    Surgical handpiece and flow control system for use therewith
    1.
    发明授权
    Surgical handpiece and flow control system for use therewith 失效
    外科手术和流量控制系统

    公开(公告)号：US3693613A

    公开(公告)日：1972-09-26

    申请号：US3693613D

    申请日：1970-12-09

    申请人： CAVITRON CORP

    发明人： KELMAN CHARLES

    IPC分类号： A61B17/00 ,  A61B17/32 ,  A61F9/007 ,  A61M1/00 ,  A61H1/00 ,  G05D11/02

    CPC分类号： A61F9/00745 ,  A61B2017/00973 ,  A61B2017/320084 ,  A61M1/0084 ,  Y10T137/2579

    摘要： A flow control system is used in conjunction with a surgical handpiece for the removal of unwanted material in a very small enclosed operative site in which it is very critical to maintain a pressure within a certain range, such as in the surgical operation of the removal of a cataract lens from the human eye. The system includes an irrigation subsystem comprising a source of treatment fluid, such as an artificial aqueous solution, at a preselected constant pressure for supplying said fluid to the enclosed operative site via the handpiece. A suspension of the treatment fluid, including any unwanted material, is removed from the operative site by an aspiration subsystem. The aspiration subsystem comprises a pump used to remove the suspension and to overcome the friction and other losses throughout the entire fluid system, a flow transducer for measuring the rate of flow, and a vent valve to reduce the flow in the aspiration subsystem when necessary to assist in maintaining a relatively constant pressure within the operative site. An electronic flow control receives signals from the flow transducer and reacts to certain changes in flow signals by sending a signal to the venting valve.

    摘要翻译： 流动控制系统与外科手持器一起使用，用于在非常小的封闭操作部位中去除不需要的材料，其中将压力保持在一定范围内是非常关键的，例如在外科手术中除去 来自人眼的白内障镜片。 该系统包括一个灌溉子系统，该灌溉子系统包括处理流体源，例如人造水溶液，处于预定的恒定压力，用于通过手持件将所述流体供应到封闭的操作部位。 包括任何不需要的物质的处理液的悬浮液通过抽吸子系统从操作部位移除。 抽吸子系统包括用于去除悬架并且克服整个流体系统中的摩擦和其它损失的泵，用于测量流速的流量传感器，以及当必要时减小吸入子系统中的流量的排气阀 有助于在手术部位保持相对恒定的压力。 电子流量控制器从流量传感器接收信号，并通过向排气阀发送信号来响应流量信号的某些变化。

    Material removal apparatus and method employing high frequency vibrations
    2.
    发明授权
    Material removal apparatus and method employing high frequency vibrations 失效
    材料去除装置和采用高频振动的方法

    公开(公告)号：US3589363A

    公开(公告)日：1971-06-29

    申请号：US3589363D

    申请日：1967-07-25

    申请人： CAVITRON CORP

    发明人： BANKO ANTON ,  KELMAN CHARLES D

    IPC分类号： A61B17/32 ,  A61F9/007 ,  A61M1/00

    CPC分类号： A61F9/00745 ,  A61B17/320068 ,  A61B2017/320072 ,  A61B2017/320078 ,  A61B2017/320084 ,  A61M1/0064

    摘要： An instrument for breaking apart and removal of unwanted material, especially suitable for surgical operations such cataract removal, including a handheld instrument having an operative tip vibrating at a frequency in the ultrasonic range with an amplitude controllable up to several thousandths of an inch. The operative tip is itself hollow and is in turn surrounded by a tubular sleeve to form an annular passage. The handpiece includes transducer means for converting a high frequency alternating current into mechanical vibrations and an impedance transformer for coupling these vibrations to the operative tips. Connections are also provided on the handpiece to a source of treatment fluid and a pump. The treatment fluid may be coupled to either the hollow interior of the tool or the surrounding annular passage, while the pump is coupled to the other. During use, the vibration of the operative tip against the tissue to be removed causes the latter to break apart into small particles which are then dispersed in the fluid flowing over the operative region. Concurrently, the pump withdraws the suspension of the tissue particles in the fluid from the operative site. The fluid flow must be regulated so as to control the pressure within limits at the operative site. The instrument is thus suitable for removing tissue from an enclosed area whereby the opening to permit access to the tissue to be removed need only be large enough to admit the tip of the operative tool.

    Activity and respiration monitor
    4.
    发明授权
    Activity and respiration monitor 失效
    活动和呼吸监测

    公开(公告)号：US3926177A

    公开(公告)日：1975-12-16

    申请号：US28784472

    申请日：1972-09-11

    申请人： CAVITRON CORP

    发明人： HARDWAY JR EDWARD V ,  HOLTMAN WILLIAM H

    IPC分类号： F02N99/00 ,  A61B5/103 ,  A61B5/11 ,  A61B5/113 ,  A61B5/00

    CPC分类号： A61B5/6892 ,  A61B5/1118 ,  A61B5/113 ,  A61B5/7242

    摘要： A contactless activity and respiration monitor is described which includes a resilient, capacitive pad, which may be a mattress, or a pad used with a mattress, having a capacitor therein responsive to the activity or respiration of a body lying on it. Electronic capacitance sensing circuitry is disclosed which provides an indication or alarm in the event of excessive activity or apnea, or low or high respiration rate. Readouts of respiration rate, and number of events of activity may also be provided. Circuits are disclosed for filtering out large static or relatively long term changes in the capacitance of the capacitive pad while maintaining the high sensitivity necessary to sense movements caused by respiration.

    摘要翻译： 描述了一种非接触式活动和呼吸监测器，其包括弹性电容性垫，其可以是床垫，或与床垫一起使用的垫，其中具有电容器，其响应于位于其上的身体的活动或呼吸。 公开了电子电容感测电路，其在过度活动或呼吸暂停或低或高呼吸速率的情况下提供指示或警报。 还可以提供呼吸率的读数和活动的事件数量。 公开了用于滤除电容式电容器的电容的大的静态或相对长期变化的电路，同时保持感测由呼吸引起的运动所需的高灵敏度。

    Otoscope
    5.
    发明授权
    Otoscope 失效
    耳镜

    公开(公告)号：US3874371A

    公开(公告)日：1975-04-01

    申请号：US43277974

    申请日：1974-01-11

    申请人： CAVITRON CORP

    发明人： STADER KENNETH P ,  LE VANTINE ALLAN D

    IPC分类号： A61B1/06 ,  A61B1/227

    CPC分类号： A61B1/227 ,  A61B1/0669

    摘要： A novel otoscope for coaxially illuminating and viewing the interior of an ear having in combination a housing with an eyepiece at one end and a specula at the opposite end, a thick lens prism mounted between the eyepiece and the speculum, the thick lens prism functioning as a bi-convex thick lens to image the light in the region of view with a first spherical convex lens, along a light source axis directing the light from a bulb toward an internal reflecting surface of the prism at an angle of incidence greater than the critical angle to reflect the light along the optical viewing axis through the second spherical convex lens of the prism to image the light in the viewed region.

    摘要翻译： 一种用于同轴照明和观察耳朵内部的新颖的耳镜，其具有一个外壳与一端的目镜和另一端的窥镜，安装在目镜和窥镜之间的厚透镜棱镜，厚透镜棱镜用作 一个双凸厚透镜，用沿第一球形凸透镜的视角对光进行成像，沿着光源轴将来自灯泡的光以大于临界值的入射角朝向棱镜的内部反射表面 角度，以通过棱镜的第二球面凸透镜沿着光学观察轴反射光以对所观察的区域中的光进行成像。

    Nebulizer
    6.
    发明授权
    Nebulizer 失效
    喷雾器

    公开(公告)号：US3744722A

    公开(公告)日：1973-07-10

    申请号：US3744722D

    申请日：1970-12-29

    申请人： CAVITRON CORP

    发明人： BURNS H

    IPC分类号： A61M11/06 ,  B05B7/00 ,  B05B7/24

    CPC分类号： A61M11/06 ,  B05B7/0012 ,  Y10S261/65

    摘要： A nebulizer for the generation of an aerosol having three major components mounted within a housing for containing a liquid and directing the resultant aerosol. The three components are designed for ease in assembly and disassembly for cleaning. The gas and liquid are uniformly mixed prior to depositing the liquid onto and spreading the liquid over a target surface for the final atomization.

    摘要翻译： 一种用于产生气溶胶的雾化器，其具有安装在壳体内的三个主要部件，用于容纳液体并引导所得到的气溶胶。 这三个组件设计用于易于组装和拆卸清洁。 在将液体沉积在目标表面上并将液体铺展在目标表面上以进行最终雾化之前，将气体和液体均匀混合。

    Vibration sensor utilizing eddy currents induced in member vibrating in the field of a magnet
    7.
    发明授权
    Vibration sensor utilizing eddy currents induced in member vibrating in the field of a magnet 失效
    振动传感器利用电磁场中的会员振动中产生的EDD电流

    公开(公告)号：US3697867A

    公开(公告)日：1972-10-10

    申请号：US3697867D

    申请日：1969-06-19

    申请人： CAVITRON CORP

    发明人： KLEESATTEL CLAUS

    IPC分类号： B06B1/04 ,  G01R33/00

    CPC分类号： B06B1/04

    摘要： Eddy current devices are used to measure the amplitude and/or direction of various components of a vibrating body as a result of an acoustic signal applied thereto. These devices are also used to measure the power transmitted by said acoustic signal to a load which is coupled to the vibrating body.

    摘要翻译： 涡流装置用于测量施加到其上的声信号的结果，振动体的各种部件的振幅和/或方向。 这些装置还用于测量由所述声信号传递到耦合到振动体的负载的功率。

    Magnetostrictive drive circuit feedback coil
    8.
    发明授权
    Magnetostrictive drive circuit feedback coil 失效
    磁感应驱动电路反馈线圈

    公开(公告)号：US3654540A

    公开(公告)日：1972-04-04

    申请号：US3654540D

    申请日：1971-01-15

    申请人： CAVITRON CORP

    发明人： HONIG WILLIAM M ,  PASCHKE RICHARD H ,  HAGGAG JACOB

    IPC分类号： B06B1/02 ,  H01V9/00

    CPC分类号： B06B1/0261 ,  B06B2201/58

    摘要： A feedback coil is placed in surrounding relation to a magnetostrictive member which is vibrating under the influence of a drive coil being energized by a power amplifier. Ideally, the voltage induced in the feedback coil should be proportional only to the vibrational amplitude of the magnetostrictive member. The induced voltage is fed back to the input of the power amplifier insuring that the member is vibrating at one of its resonant frequencies. The feedback coil is designed so that there is no transformer coupling between the feedback and drive coils. The feedback coil can be positioned along the length of the device in one of two ways, so as to maximize the induced voltage. Each way relies on a different magnetostrictive effect.

    摘要翻译： 反馈线圈与磁致伸缩构件的周围关系放置，该磁致伸缩构件在由功率放大器激励的驱动线圈的影响下振动。 理想地，在反馈线圈中感应的电压应仅与磁致伸缩元件的振动振幅成比例。 感应电压被反馈到功率放大器的输入端，确保该部件在其谐振频率之一处振动。 反馈线圈被设计成使得在反馈和驱动线圈之间不存在变压器耦合。 反馈线圈可以以两种方式之一沿着装置的长度定位，以便最大化感应电压。 每种方式都依赖于不同的磁致伸缩效应。