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    SURGICAL ACCESS APPARATUS AND METHOD
    43.
    发明申请
    SURGICAL ACCESS APPARATUS AND METHOD 有权

    公开(公告)号：US20110071463A1

    公开(公告)日：2011-03-24

    申请号：US12960458

    申请日：2010-12-03

    Applicant: Richard C. Ewers ,  John R. Brustad ,  Edward D. Pingleton ,  Nabil Hilal ,  Gary R. Dulak ,  Payam Adlparvar ,  Robert R. Bowes

    Inventor： Richard C. Ewers ,  John R. Brustad ,  Edward D. Pingleton ,  Nabil Hilal ,  Gary R. Dulak ,  Payam Adlparvar ,  Robert R. Bowes

    IPC: A61M13/00

    CPC classification number: A61B17/3423 ,  A61B17/0218 ,  A61B17/0293 ,  A61B17/3474 ,  A61B17/3498 ,  A61B2017/00265 ,  A61B2017/00526 ,  A61B2017/3419 ,  A61B2017/3445 ,  A61B2017/3492 ,  A61M13/003

    Abstract: A surgical access device is adapted for performing laparoscopic surgical procedures with multiple instruments passing through the surgical access device and through a single incision in the abdominal wall of a patient with the abdominal cavity pressurized with an insufflation gas. The surgical access device is adapted to provide instrument access to the abdominal cavity for surgical procedures while generally maintaining insufflation pressure in the abdominal cavity. The surgical access device comprises an access pad. The access pad comprises a material formed of a mixture comprising a triblock copolymer, an oil, and a foaming agent. The access pad is adapted to be disposed within an incision within an abdominal wall. The access pad has an external flange and an internal flange integrally formed with the access pad. The external flange is adapted to be disposed external to the abdominal wall in an operative position and the internal flange adapted to be disposed internal to the abdominal wall in the operative position. The access pad is configured to be maintained in the operative position and adapted to form a seal with the abdominal wall. A plurality of openings are formed through the access pad between an external surface and an internal surface of the access pad. The plurality of openings when operatively disposed are in communication with the incision and form working channels between a location external to the abdominal wall and a location internal to the abdominal wall. The access pad is adapted to conform to a surface of an instrument inserted through the working channel. At least a portion of the access pad between the external flange and the internal flange and within the incision between an external surface of the abdominal wall and an internal surface of the abdominal wall is adapted to form an instrument seal with the instrument. Locating the access pad within the incision creates a radially compressive force to provide an axial seal between the access pad and the abdominal wall.

    Compressible tissue anchor assemblies
    44.
    发明授权
    Compressible tissue anchor assemblies 有权
    可压缩组织锚固组件

    公开(公告)号：US07736379B2

    公开(公告)日：2010-06-15

    申请号：US11179082

    申请日：2005-07-11

    Applicant: Richard C. Ewers ,  Shirley Vong ,  Vahid Saadat

    Inventor： Richard C. Ewers ,  Shirley Vong ,  Vahid Saadat

    IPC: A61B17/04

    CPC classification number: A61B17/0401 ,  A61B17/0469 ,  A61B17/0482 ,  A61B17/0644 ,  A61B2017/00867 ,  A61B2017/0454 ,  A61B2017/0464 ,  A61B2017/0496 ,  A61B2017/06052 ,  A61B2090/037

    Abstract: Apparatus & methods for optimizing anchoring force are described herein. In securing tissue folds, over-compression of the tissue directly underlying the anchors is avoided by utilizing tissue anchors having expandable arms configured to minimize contact area between the anchor and tissue. When the anchor is in its expanded configuration, a load is applied to the anchor until it is optimally configured to accommodate a range of deflections while the anchor itself exerts a substantially constant force against the tissue. Various devices, e.g., stops, spring members, fuses, strain gauges, etc., can be used to indicate when the anchor has been deflected to a predetermined level within the optimal range. Moreover, other factors to affect the anchor characteristics include, e.g., varying the number of arms or struts of the anchor, positioning of the arms, configuration of the arms, the length of the collars, etc.

    Abstract translation: 本文描述了用于优化锚固力的装置和方法。 在固定组织褶皱时，通过利用具有可扩张臂的组织锚来避免直接位于锚固件正下方的组织的过度压缩，所述组织锚构造成使锚和组织之间的接触面积最小化。 当锚固件处于其膨胀构型时，将负载施加到锚固件，直到其被最佳地构造成适应一定范围的偏转，同时锚固件本身对组织施加基本恒定的力。 可以使用各种装置，例如止动件，弹簧构件，保险丝，应变计等来指示锚固件何时被偏转到最佳范围内的预定水平。 此外，影响锚固特征的其他因素包括例如改变锚的臂或支柱的数量，臂的定位，臂的构型，套环的长度等。

    Wound retraction apparatus and method
    49.
    发明授权
    Wound retraction apparatus and method 有权
    伤口收缩装置及方法

    公开(公告)号：US06958037B2

    公开(公告)日：2005-10-25

    申请号：US10399209

    申请日：2001-10-20

    Applicant: Richard C. Ewers ,  John R. Brustad ,  Edward D. Pingleton ,  Nabil Hilal ,  Payam Adlparvar ,  Scott Taylor ,  Gary R. Dulak ,  Michael J. Dunn ,  Norman L. Morales ,  Charles C. Hart ,  Robert R. Bowes

    Inventor： Richard C. Ewers ,  John R. Brustad ,  Edward D. Pingleton ,  Nabil Hilal ,  Payam Adlparvar ,  Scott Taylor ,  Gary R. Dulak ,  Michael J. Dunn ,  Norman L. Morales ,  Charles C. Hart ,  Robert R. Bowes

    IPC: A61B17/02 ,  A61B17/34

    CPC classification number: A61B1/32 ,  A61B17/0293 ,  A61B17/3423 ,  A61B17/3431 ,  A61B2017/3484

    Abstract: A surgical wound retractor is adapted to dilate a wound stretchable to a desired diameter, the retractor includes a first ring having a diameter greater than that desired for the wound and being adapted for disposition interiorly of the wound. A second ring has a diameter greater than that desired for the wound and is adapted for disposition exteriorly of the wound. A plurality of retraction elements are disposed in a generally cylindrical relationship to each other, between the first ring and the second ring. These elements extend through the wound to exert a radial retraction force on the wound which is dependent on the distance separating the first ring and the second ring. Retraction elements, both distensible and non-distensible are contemplated with appropriate attachment elements at the rings to provide for variations in the retraction force. With a suitable retraction sleeve, a third ring can be provided to form a circumferential retainer to vary the retraction force. Rings can also be made inflatable or self-expanding to vary the retraction force. An associated method includes the step of rolling the second ring circumferentially of the third ring to form the circumferential retainer.

    Abstract translation: 外科伤口牵开器适于将可拉伸至期望直径的伤口扩张，牵开器包括直径大于伤口所需直径的第一环，并适于在伤口内部配置。 第二环的直径大于伤口所需的直径，并且适于在伤口的外部配置。 多个退回元件在第一环和第二环之间以大致圆柱形的关系设置。 这些元件延伸穿过伤口以在伤口上施加径向缩回力，这取决于分离第一环和第二环的距离。 缩回元件，既可扩张也不可扩张，可以考虑在环处的适当的附接元件，以提供收缩力的变化。 利用合适的缩回套筒，可以提供第三环以形成圆周保持器以改变收回力。 环也可以制成充气或自膨胀以改变收缩力。 相关联的方法包括在第三环周向滚动第二环以形成周向保持器的步骤。

    Ureteral stent system apparatus and method
    50.
    发明授权
    Ureteral stent system apparatus and method 失效
    输尿管支架系统装置及方法

    公开(公告)号：US06395021B1

    公开(公告)日：2002-05-28

    申请号：US09303113

    申请日：1999-04-30

    Applicant: Charles C. Hart ,  Ralph V. Clayman ,  John R. Brustad ,  Frans Vandenbroek ,  Richard C. Ewers

    Inventor： Charles C. Hart ,  Ralph V. Clayman ,  John R. Brustad ,  Frans Vandenbroek ,  Richard C. Ewers

    IPC: A61F206

    CPC classification number: A61F2/04 ,  A61F2/042 ,  A61F2/82 ,  A61F2/848 ,  A61F2/90 ,  A61F2/95 ,  A61F2002/048 ,  A61F2250/0067 ,  A61M27/008

    Abstract: A stent having an elongate tubular configuration is formed of a plurality of elongate elements interwoven or braided to form a tubular configuration. The elements may be relatively strong and rigid, but movable relative to each other within the weave or braid in order to provide the stent with generally soft characteristics. The elements may be formed of different materials, such as an absorbent material permitting the stent to be doped with materials such as drugs and chemicals. Even the absorbency can be controlled and varied to provide a predetermined time-release of the absorbent.

    Abstract translation: 具有细长管状结构的支架由多个细长元件形成，交织或编织以形成管状构型。 这些元件可以是相对较强且刚性的，但是可以在编织物或编织物内相对于彼此移动，以便为支架提供通常柔软的特性。 元件可以由不同的材料形成，例如允许支架掺杂材料如药物和化学品的吸收材料。 甚至可以控制和改变吸光度以提供吸收剂的预定时间释放。

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