Endoscopic surgical instruments having stepped rotatable end effectors
    62.
    发明授权
    Endoscopic surgical instruments having stepped rotatable end effectors 失效
    内窥镜手术器械具有阶梯式可旋转末端执行器

    公开(公告)号:US5293878A

    公开(公告)日:1994-03-15

    申请号:US989984

    申请日:1992-12-04

    摘要: Medical instruments are provided having end effectors and end effector actuator apparatus which are rotatable relative to the end effectors. The instruments generally include a tube which is typically coupled to the end effectors via a clevis around which the end effectors pivot, a push rod extending through the tube and coupled to the end effectors, and an actuator apparatus engaging the tube and the push rod with the actuator apparatus including a handle which surrounds and rotatably engages the proximal end of the tube, and a lever arm which pivotally engages the handle and is coupled to the push rod such that pivotal movement of the lever arm relative to the handle effects axial movement of the push rod relative to the tube and pivotal movement of the end effectors. In order to alternatively fix or allow rotation of the actuator apparatus relative to the tube and end effectors, the tube is provided with a plurality of peripherally spaced apart recesses in a portion thereof, and the handle is provided with a resiliently biased contact element which is coupled to an electrode and which when seated in a recess restrains rotation of the outer tube about the longitudinal axis, but which can be unseated by a sufficient relative rotational force. To decouple rotation of the push rod from the lever arm, a generally spherical push rod engaging element is provided in a cylindrical bore of the lever arm.

    摘要翻译: 提供了具有能够相对于末端执行器旋转的末端执行器和末端执行器致动器装置的医疗器械。 仪器通常包括管,其通常经由U形夹连接到端部执行器,末端执行器绕其枢转,延伸穿过管并连接到端部执行器的推杆以及与管和推杆接合的致动器装置, 所述致动器装置包括围绕并可旋转地接合所述管的近端的手柄,以及与所述手柄枢转接合并且联接到所述推杆的杠杆臂,使得所述杠杆臂相对于所述手柄的枢转运动实现轴向运动 推杆相对于管和端部执行器的枢转运动。 为了交替地固定或允许致动器装置相对于管和端部执行器的旋转,管在其一部分中设置有多个周向间隔开的凹部,并且手柄设置有弹性偏置的接触元件,该接触元件是 耦合到电极,并且当其位于凹部中时,限制外管围绕纵向轴线的旋转,但是可以通过足够的相对旋转力而脱离。 为了将推杆与杠杆臂的旋转分离,大体上球形的推杆接合元件设置在杠杆臂的圆柱形孔中。

    Endoscopic surgical instruments having rotatable end effectors
    64.
    发明授权
    Endoscopic surgical instruments having rotatable end effectors 失效
    内镜手术器具具有可转动的末端执行器

    公开(公告)号:US5174300A

    公开(公告)日:1992-12-29

    申请号:US833456

    申请日:1992-02-07

    摘要: Medical instruments are provided having end effectors and end effector actuator apparatus which are rotatable relative to the end effectors. The instruments generally include a tube which is typically coupled to the end effectors via a clevis around which the end effectors pivot, a push rod extending through the tube and coupled to the end effectors, an actuator apparatus engaging the tube and the push rod and imparting reciprocal axial motion to the push rod relative to the tube, and end effectors. The actuator apparatus includes a sleeve, spring, handle, and lever arm. The sleeve is movable along the longitudinal axis of the tube against a biasing force of the spring, but is restrained from rotating about the tube. The sleeve has a locking element on its proximal end. The handle surrounds and rotatably engages the proximal end of the tube and has a locking element on its distal end which mates with the locking element of the sleeve and disengages therewith when the sleeve is advanced along the tube. Upon disengagement, the tube, push rod, and end effectors can be rotated. The lever arm pivotally engages the handle and is coupled to the push rod such that pivotal movement of the lever arm relative to the handle effects movement of the push rod relative to the tube and pivotal movement of the end effectors. To decouple rotation of the push rod from the lever arm, a generally spherical push rod engaging element is provided in a generally cylindrical bore of the lever arm.

    摘要翻译: 提供了具有能够相对于末端执行器旋转的末端执行器和末端执行器致动器装置的医疗器械。 仪器通常包括管,其通常通过U形​​夹连接到端部执行器,末端执行器绕其枢转,推杆延伸穿过管并联接到端部执行器,致动器装置接合管和推杆并且赋予 推杆相对于管的往复轴向运动,以及末端执行器。 致动器装置包括套筒,弹簧,把手和杠杆臂。 套筒可以克服弹簧的偏置力沿着管的纵向轴线移动,但是被限制绕管旋转。 套管在其近端具有锁定元件。 手柄环绕并可旋转地接合管的近端,并且在其远端上具有锁定元件,该锁定元件与套筒的锁定元件配合,并且当套筒沿管子前进时与其脱离。 在分离时,管,推杆和末端执行器可以旋转。 杠杆臂枢转地接合手柄并且联接到推杆,使得杠杆臂相对于手柄的枢转运动实现推杆相对于管的运动和末端执行器的枢转运动。 为了将推杆与杠杆臂的旋转分离,大体上球形的推杆接合元件设置在杠杆臂的大致圆柱形的孔中。

    Implantable radiation therapy device having controllable radiation emission
    66.
    发明授权
    Implantable radiation therapy device having controllable radiation emission 有权
    具有可控辐射发射的可植入放射治疗装置

    公开(公告)号:US06471631B1

    公开(公告)日:2002-10-29

    申请号:US09575431

    申请日:2000-05-22

    IPC分类号: A61M3612

    摘要: An implantable radiation therapy device includes a biocompatible radiotranslucent outer capsule containing a radiation shielding element and a radioactive isotope at least partially shielded by the shielding element. When the device is at or below body temperature, radiation is prevented or limited from being transmitted through the outer capsule by the shielding element. When non-ambient energy is applied to the device, the shielding element and radioactive isotope are reconfigured such that an increased level of radiation is transmitted through the outer capsule and emitted by the device.

    摘要翻译: 可植入放射治疗装置包括生物相容的无辐射透明外胶囊,其包含至少部分被屏蔽元件屏蔽的辐射屏蔽元件和放射性同位素。 当装置处于或低于体温时,防止或限制辐射通过屏蔽元件透过外胶囊。 当非环境能量被施加到设备时,屏蔽元件和放射性同位素被重新配置,使得增加的辐射水平通过外部胶囊传输并被设备发射。

    Radioactive therapeutic seed having selective marker configuration
    67.
    发明授权
    Radioactive therapeutic seed having selective marker configuration 失效
    具有选择标记物配置的放射性治疗种子

    公开(公告)号:US06200258B1

    公开(公告)日:2001-03-13

    申请号:US09371243

    申请日:1999-08-10

    IPC分类号: A61N500

    CPC分类号: A61N5/1027 A61N2005/1024

    摘要: Radioactive therapeutic seeds include a carrier structure bearing a radioactive isotope and a radiopaque marker. According to embodiments of the invention, the seeds include a central plug provided with an axial marker and a relatively transverse bore extending through the marker. A second marker may be positioned in the bore, thereby radiographically distinguishing a seed provided with the second marker relative to a seed not provided with the second marker. According to another embodiment of the invention, the isotope is deposited on the outer surface of a hollow radiolucent tube. A biologically-compatible, radiolucent, surface-sealing layer seals the external surface of the tube. A radiopaque marker wire of selected length is positioned in the hollow of the tube. Seeds may be radiographically distinguished from one another by providing seeds with marker wires of different lengths. Each embodiment permits at least two groups of seeds to be radiographically distinguished from one another by the use of differing marker configurations. Each embodiment is further capable of being selectively marked by the physician prior to implantation of the seeds, or by the manufacturer for delivery to the physician in radiographically distinguishable sets. As a result, seeds having different levels of radiation emission can be distinguished in vivo and their effect monitored by the physician.

    摘要翻译: 放射治疗种子包括具有放射性同位素和不透射线标记的载体结构。 根据本发明的实施例,种子包括设置有轴向标记的中心塞和延伸穿过标记的相对横向的孔。 可以将第二标记物定位在孔中,从而与提供有第二标记的种子相对于未设置有第二标记的种子进行射线照相。 根据本发明的另一个实施方案,同位素沉积在中空的射线可透管的外表面上。 生物相容的射线可透过的表面密封层密封管的外表面。 所选长度的不透射线标记线位于管的中空中。 种子可以通过向不同长度的标记线提供种子而被放射学地区分开。 每个实施例允许至少两组种子通过使用不同的标记物构造彼此放射学地区分开。 每个实施例还能够在植入种子之前被医生选择性地标记,或者由制造商在放射学可区分的组中递送给医师。 结果,具有不同水平的辐射发射的种子可以在体内被区分,并且其效果由医师监测。

    Endoscopic surgical methods utilizing a suction-irrigation instrument
with a port for endoscopic manipulating instruments
    68.
    发明授权
    Endoscopic surgical methods utilizing a suction-irrigation instrument with a port for endoscopic manipulating instruments 失效
    内窥镜手术方法利用具有用于内窥镜操纵仪器的端口的吸入式装置

    公开(公告)号:US5312332A

    公开(公告)日:1994-05-17

    申请号:US51000

    申请日:1993-04-21

    摘要: Methods of endoscopic surgery are disclosed. The methods utilize a suction/irrigation endoscopic instrument and a second endoscopic instrument. The suction/irrigation endoscopic instrument has a cannula, a fluid chamber in communication with the cannula, and an automatic valve at the proximal end of the fluid chamber. The second endoscopic instrument has end effectors and actuating means, and the end effectors of the second endoscopic instrument is inserted through the automatic valve, through the fluid chamber, and through the cannula. The methods involve inserting the suction/irrigation instrument through a trocar tube, and then inserting the second endoscopic instrument therethrough. The automatic valve insures that there is no leakage when the second instrument is inserted. The second endoscopic instrument may rotated inside, or may be partially withdrawn into the suction/irrigation instrument. Upon removing the second endoscopic instrument, the valve of the suction/irrigation instrument automatically closes so that there is no leakage. If desired, the suction/irrigation instrument may be provided with a cautery current at the cannula, and the second endoscopic instrument may be provided with a bump which contacts the cannula as a cautery pick-up.

    摘要翻译: 公开了内窥镜手术的方法。 该方法利用抽吸/灌洗内窥镜仪器和第二内窥镜仪器。 吸入/冲洗内窥镜器具具有插管,与插管连通的流体室,以及在流体室的近端处的自动阀。 第二内窥镜仪器具有末端执行器和致动装置,并且第二内窥镜器械的末端执行器通过自动阀,通过流体腔室并穿过套管插入。 所述方法包括通过套管针插入吸入/冲洗器械,然后将第二内窥镜器械插入其中。 自动阀确保插入第二台仪器时没有泄漏。 第二内窥镜器械可以在内部旋转,或者可以部分地抽吸到抽吸/冲洗仪器中。 在移除第二内窥镜仪器后,吸入/冲洗仪器的阀门自动关闭,因此不会有泄漏。 如果需要,吸入/冲洗器械可以在套管处设置有烧焦电流,并且第二内窥镜器械可以设置有作为灼烧拾取器接触套管的凸块。