Electrosurgical hemostatic method and device
    92.
    依法登记的发明
    Electrosurgical hemostatic method and device 失效
    电外科止血方法及装置

    公开(公告)号:USH1904H

    公开(公告)日:2000-10-03

    申请号:US856520

    申请日:1997-05-14

    摘要: An electrosurgical instrument is provided for cauterization and/or welding of tissue of varying impedance, thickness and vascularity especially in the performance of endoscopic procedures. The instrument compresses the tissue between one pole of a bipolar energy source located on one interfacing surface, and a second interfacing surface applying pressure in a predetermined range. A second pole is located one of the two interfacing surfaces. In a preferred embodiment, the second pole is located on the same interfacing surface as the first pole and an insulator electrically isolates the two poles. A preferred application of the invention is in a cutting instrument wherein a hemostatic line is formed along a cut line using RF energy.

    摘要翻译: 提供了一种电外科手术器械,用于烧灼和/或焊接不同阻抗,厚度和血管的组织,特别是在内窥镜手术的执行过程中。 该仪器压缩位于一个界面表面上的双极能量源的一极之间的组织和在预定范围内施加压力的第二接口表面。 第二个极点位于两个接口表面之一。 在优选实施例中,第二极位于与第一极相同的接口表面上,绝缘体电隔离两极。 本发明的优选应用在切割仪器中,其中使用RF能量沿着切割线形成止血线。

    Fastener delivery and deployment mechanism and method for placing the
fastener in minimally invasive surgery
    94.
    发明授权
    Fastener delivery and deployment mechanism and method for placing the fastener in minimally invasive surgery 失效
    用于将紧固件放置在微创手术中的紧固件递送和部署机构和方法

    公开(公告)号:US5891160A

    公开(公告)日:1999-04-06

    申请号:US985355

    申请日:1997-12-04

    摘要: A one-piece fastener or staple includes a base that contacts tissue and a prong that extends through the tissue. A suture lead is anchored to the base and a needle is attached to the suture lead. A tool positions the fastener adjacent to the tissue, and is operated to drive the prong and the suture needle through the tissue. The tool includes a needle grabber that is operated to grab the needle and pull the needle out of the patient. Since the suture lead is attached to the fastener, a prosthesis can be placed on the suture lead and pushed down to the tissue. A cassette is releasably mounted on the tool and contains the fastener, the suture lead and the suture needle. Alternative forms of the anchor have sutures attached to a base at locations that are spaced apart from each other, and sutures associated with each of two adjacent anchors can be tied together or sutures associated with a single anchor can be tied together. A suture threadably connected to an anchor can be used as a running suture. A prosthetic device can have a running suture associated therewith that is threadably attached to each of a plurality of anchors. Another form of the system includes a running suture with loops that can have additional anchors attached thereto as needed if the surgeon decides to add further anchors to the system to customize the system to the particular patient.

    摘要翻译: 单件紧固件或订书钉包括接触组织的基部和延伸穿过组织的插脚。 缝合线被锚固到基部并且针被附接到缝合线。 工具将紧固件邻近组织定位,并且被操作以通过组织驱动叉和缝合针。 该工具包括用于抓住针头并将针从患者中拉出的针抓取器。 由于缝线引导件连接到紧固件上,假体可以放置在缝合线上并向下推到组织。 盒可释放地安装在工具上并且包含紧固件,缝合线和缝合针。 锚的替代形式具有在彼此间隔开的位置处附接到基部的缝合线,并且与两个相邻锚固件中的每一个相关联的缝线可以被捆绑在一起,或者可以将与单个锚相关联的缝线连接在一起。 螺纹连接到锚固件的缝合线可以用作运行缝合线。 假体装置可以具有与其相关联的运行缝合线,该缝合线可螺纹连接到多个锚固件中的每一个上。 系统的另一种形式包括具有循环的运行缝合线,如果外科医生决定向系统添加另外的锚点以根据特定患者定制系统,则可以根据需要具有连接到其上的附加锚固件。

    Surgical stapler with tissue gripping ridge
    95.
    发明授权
    Surgical stapler with tissue gripping ridge 失效
    手术吻合器与组织夹脊

    公开(公告)号:US5452837A

    公开(公告)日:1995-09-26

    申请号:US349706

    申请日:1994-12-05

    摘要: An improved surgical stapler is disclosed having a tissue gripping ridge on at least one of the tissue contacting surfaces. The tissue contact surfaces are preferably displayed on both the anvil and the cartridge surfaces of the surgical stapler. The tissue gripping ridges preferably have serrated surfaces which mesh when in contact with each other to hold the tissue.The preferred embodiment of this invention describes the tissue gripping ridges along the periphery of the anvil and cartridge tissue contact surfaces. Another embodiment describes the tissue gripping ridges adjacent to the longitudinal knife slot.

    摘要翻译: 公开了一种改进的外科缝合器,其在至少一个组织接触表面上具有组织夹持脊。 组织接触表面优选地显示在外科缝合器的砧座和药筒表面上。 组织夹紧脊优选地具有锯齿状表面,该锯齿状表面在彼此接触时啮合以保持组织。 本发明的优选实施例描述了沿着砧座和药筒组织接触表面的周边的组织夹持脊。 另一实施例描述了与纵向刀槽相邻的组织夹紧脊。

    Staple cartridge for a surgical stapler
    96.
    发明授权
    Staple cartridge for a surgical stapler 失效
    用于外科缝合器的钉子筒

    公开(公告)号:US5364003A

    公开(公告)日:1994-11-15

    申请号:US58393

    申请日:1993-05-05

    IPC分类号: A61B17/072 A61B17/068

    摘要: A staple cartridge for a surgical stapler includes a staple drive member which is driven by longitudinal movement of a cam through the surgical stapler for firing at least one surgical staple. The staple drive member comprises a staple drive element having a staple driving surface in association with the surgical staple for angular orientation of the surgical staple, when applied, with respect to the direction of movement of the cam. The staple drive member further comprises a cam contact element having a cam contact surface for being engaged by the cam, and an arrangement for pivotally connecting the staple drive element to the cam contact element.

    摘要翻译: 用于外科缝合器的钉仓包括钉驱动构件,该钉钉驱动构件通过凸轮通过外科缝合器的纵向移动而被驱动,用于烧制至少一个手术钉。 订书钉驱动构件包括订书钉驱动元件,所述订书钉驱动元件具有与所述手术订书针相关联的订书钉驱动表面,用于当被施加时相对于所述凸轮的移动方向的外科缝合钉的角度取向。 缝钉驱动构件还包括凸轮接触元件,凸轮接触元件具有用于与凸轮接合的凸轮接触表面,以及用于将缝钉驱动元件可枢转地连接到凸轮接触元件的装置。

    Rotor drive for medical disposables
    97.
    发明授权
    Rotor drive for medical disposables 失效
    转子驱动医疗一次性用品

    公开(公告)号:US4816151A

    公开(公告)日:1989-03-28

    申请号:US079256

    申请日:1987-07-29

    摘要: A disposable biomedical rotating filtration system for processing fluids in a closed environment includes a rotor mounted for rotation on a pivot pin, a seal between the rotor and pivot pin, an external permanent magnet drive mechanism, and a star shaped drive element mounted on the rotor for rotating the rotor in response to a magnetic field induced by the permanent magnet of the drive mechanism. The drive element on the rotor is stamped from an inexpensive non-permanent ferromagnetic sheet metal and has a configuration and position in relation to the center of said magnetic field such that said drive element receives sufficient torque for driving said rotor and sufficient seal force is applied on the rotor to provide fluid tight seal between the rotating rotor and the seal. The pivot pin is molded from a hard plastic material such as a polyamide base resin having a low coefficient of friction and good lubriciousness. The pivot pin is irradiated by gamma radiation for sterilization and modifying of the plastic material without degradation or loss of lubricious properties.

    摘要翻译: 用于在封闭环境中处理流体的一次性生物医学旋转过滤系统包括安装在枢轴销上的转子,转子和枢转销之间的密封件,外部永磁体驱动机构和安装在转子上的星形驱动元件 用于响应于由驱动机构的永磁体感应的磁场来旋转转子。 转子上的驱动元件由便宜的非永久性铁磁金属板冲压而成,并且具有相对于所述磁场中心的构造和位置,使得所述驱动元件接收足够的转矩来驱动所述转子并施加足够的密封力 在转子上提供旋转转子和密封件之间的流体密封。 枢轴销由诸如具有低摩擦系数和良好光滑性的聚酰胺基础树脂的硬塑料材料模制而成。 枢轴销被γ射线照射,用于塑料材料的灭菌和改性,而不降解或丧失润滑性能。

    Pivot pin bearing for biomedical systems
    98.
    发明授权
    Pivot pin bearing for biomedical systems 失效
    枢轴轴承用于生物医学系统

    公开(公告)号:US4675106A

    公开(公告)日:1987-06-23

    申请号:US722707

    申请日:1985-04-12

    摘要: In a disposable biomedical system for processing fluids in a closed environment such as a plasmapheresis system, comprising a plastic rotor mounted for rotation on a pivot pin bearing and a seal, particularly a silicone lubricated O-ring seal, between the rotor and pin, the improvement wherein said pivot pin is a molded pivot pin of a hard plastic material having a low coefficient of friction and lubriciousness, and which is capable of being irradiated by gamma radiation for sterilization and modification of the plastic material without degradation or loss of lubricious properties. The pivot pin bearing preferably comprises an injection molded polyamide based resin.

    摘要翻译: 在用于在诸如血浆置换术系统的封闭环境中处理流体的一次性生物医学系统中,包括在转子和销之间安装用于在枢轴销轴承和密封件(特别是硅橡胶润滑的O形密封圈)上旋转的塑料转子, 改进之处在于,所述枢轴销是具有低摩擦系数和光滑性的硬塑料材料的模制枢轴销,并且能够被伽马辐射照射以消除和改变塑料材料,而不会降低或丧失润滑性能。 枢轴销轴承优选地包括注塑聚酰胺基树脂。