公开(公告)号：US4530402A

公开(公告)日：1985-07-23

申请号：US527902

申请日：1983-08-30

申请人： Robert C. Smith ,  George B. Holman, Jr.

发明人： Robert C. Smith ,  George B. Holman, Jr.

IPC分类号： C09K8/42 ,  E21B33/13 ,  E21B33/16 ,  E21B37/00

CPC分类号： E21B33/13 ,  C09K8/424 ,  E21B33/16

摘要： A method of completing a wellbore is disclosed wherein a low density spacer fluid is introduced into a wellbore and then a completion fluid, such as a cement slurry, to displace the spacer fluid. The spacer fluid comprises a nonagglomerating carrier fluid, such as water or the like, and discrete dispersible density reducing bodies, such as hollow spheres. The density reducing bodies aid in reducing the hydrostatic head of the spacer fluid, completion fluid, and existing wellbore fluids to prevent the hydrostatic head of such fluids from exceeding the fracture gradient of a highly porous, easily fractured formation.

摘要翻译： 公开了一种完成井孔的方法，其中将低密度间隔液引入井眼中，然后将完井流体（例如水泥浆）引入以移动间隔液。 间隔液包括非凝聚载体流体，例如水等，以及离散的分散密度减小体，例如中空球体。 密度减小体有助于减少间隔液，完井流体和现有井眼流体的静水压头，以防止这种流体的静水压头超过高度多孔，容易断裂的地层的断裂梯度。

公开(公告)号：US08961552B2

公开(公告)日：2015-02-24

申请号：US13212232

申请日：2011-08-18

申请人： Gregory Fischvogt ,  Robert C. Smith

发明人： Gregory Fischvogt ,  Robert C. Smith

IPC分类号： A61B17/00 ,  A61B17/34

CPC分类号： A61B17/3496 ,  A61B17/3421 ,  A61B2017/00907 ,  A61B2017/320044 ,  A61B2017/3454 ,  A61B2017/3456 ,  A61B2017/349

摘要： A surgical obturator that includes an elongated shaft defining a longitudinal axis and an obturator member disposed adjacent a distal end of the elongated shaft. The obturator member may include a proximal section being convex along a majority of its length. It may also include a central section disposed adjacent the proximal section, the central section including a first pair of surfaces disposed relative to each other on radially opposite sides of the central section, and a second set of surfaces disposed between the first pair of surfaces and further being disposed relative to each other on radially opposite sides of the central section, at least a portion of a length of each one of the first pair of surfaces being concave, and at least a portion of a length of each one of the second pair of surfaces being convex. The obturator member may also include a guiding nub disposed distally of the central section and including a rounded distal-most portion. The rounded distal-most portion of the guiding nub may be atraumatic to tissue.

摘要翻译： 一种手术闭塞器，其包括限定纵向轴的细长轴和邻近所述细长轴的远端设置的闭塞件。 闭塞构件可以包括沿其长度的大部分是凸起的近端部分。 它还可以包括邻近近端部分设置的中心部分，中心部分包​​括在中心部分的径向相对侧上相对于彼此设置的第一对表面和设置在第一对表面之间的第二组表面，以及 还在中心部分的径向相对侧相对设置，所述第一对表面中的每一个的长度的至少一部分是凹形的，并且所述第二对中的每一个的长度的至少一部分 的表面是凸的。 所述封闭件还可以包括设置在所述中心部分的远端并包括圆形最远部分的导向凸块。 引导结节的圆形最远部分可能对组织无创伤。

公开(公告)号：US08668641B2

公开(公告)日：2014-03-11

申请号：US13415971

申请日：2012-03-09

申请人： Robert C. Smith

发明人： Robert C. Smith

IPC分类号： A61B1/32

CPC分类号： A61B17/0293 ,  A61B17/0218 ,  A61B17/3423 ,  A61B17/3431 ,  A61B2017/3429 ,  A61B2017/3435 ,  A61B2017/3466 ,  A61B2017/347

摘要： A surgical access assembly and method of use is disclosed, including an access member, a tissue engaging member, a sleeve extending from a portion of the membrane, and a fastening member to couple the access member and the sleeve. The access member includes proximal and distal ends, at least one lumen disposed therethrough, and defines a longitudinal axis. The tissue engaging member includes a membrane having proximal and distal ends with opposing openings, and a passage therethrough for receiving the access member. A length of the tissue engaging member may be selectively adjustable by a user so as to provide a retraction force. The sleeve extends proximally from a portion of the membrane. The sleeve has a proximal end and a distal end with opposing openings, the distal end of the sleeve defined by a portion of the membrane. A fastening member couples the access member and the sleeve.

摘要翻译： 公开了一种手术进入组件和使用方法，包括进入构件，组织接合构件，从膜的一部分延伸的套筒以及用于联接进入构件和套筒的紧固构件。 进入构件包括近端和远端，至少一个通过其设置的腔，并且限定纵向轴线。 组织接合构件包括具有近端和远端具有相对的开口的膜，以及用于接收进入构件的通道。 组织接合构件的长度可以由使用者选择性地调节以便提供收缩力。 套筒从膜的一部分向近侧延伸。 套筒具有近端和具有相对开口的远端，套筒的远端由膜的一部分限定。 紧固构件联接进入构件和套筒。

公开(公告)号：US08485971B2

公开(公告)日：2013-07-16

申请号：US12706780

申请日：2010-02-17

申请人： Robert C. Smith ,  Thomas Wenchell

发明人： Robert C. Smith ,  Thomas Wenchell

IPC分类号： A61B1/32

CPC分类号： A61B17/0218 ,  A61B17/3423 ,  A61B17/3462 ,  A61B2017/00265 ,  A61B2017/00477 ,  A61B2017/3464

摘要： A surgical access apparatus adaptable to permit the sealed insertion of either the surgeon's hand and/or surgical instruments during laparoscopic and endoscopic surgical procedures includes an access housing defining a longitudinal axis and having a first internal passageway configured and dimensioned to permit passage of at least one of a hand and an arm of a surgeon, and a base mountable to the access housing. The base may include a liner member positionable within an incision of a patient to at least partially line the incision. A displacement member may be operatively connected to the access housing and to the liner member. The displacement member is adapted for movement to cause corresponding displacement of the liner member relative to the access housing whereby the liner member engages tissue forming the incision to at least partially retract the incision.

摘要翻译： 适于在腹腔镜和内窥镜手术过程中允许外科医生的手和/或手术器械的密封插入的手术进入装置包括限定纵向轴线的入口壳体，并且具有构造和尺寸的第一内部通道，以允许至少一个 外科医生的手和手臂，以及可安装到进入壳体的基座。 基部可以包括可定位在患者切口内以至少部分地切开切口的衬垫构件。 位移构件可以可操作地连接到进入壳体和衬套构件。 位移构件适于移动以引起衬套构件相对于进入壳体的相应位移，由此衬垫构件接合组织切口的组织以至少部分地缩回切口。

公开(公告)号：US08409086B2

公开(公告)日：2013-04-02

申请号：US12961531

申请日：2010-12-07

申请人： Robert C. Smith

发明人： Robert C. Smith

IPC分类号： A61B1/32

CPC分类号： A61B17/0218 ,  A61B17/3423 ,  A61B17/3462 ,  A61B2017/2929

摘要： A surgical portal apparatus includes a portal housing, a portal sleeve, and a seal. The portal housing defines a central housing axis and a central housing channel. The portal sleeve extends from the portal housing and is dimensioned to pass through tissue to provide access to underlying tissue via a longitudinal opening. The central housing channel of the portal housing and the longitudinal opening of the portal sleeve define a passageway for reception and passage of a surgical object. The seal has inner surfaces defining a seal passage for establishing a general sealed relation about the surgical object. The seal passage is radially offset with respect to the central housing axis. The seal is adapted to rotate about the central housing axis to vary positioning of the seal passage to substantially maintain the substantial sealed relation upon manipulation of the surgical object within the portal housing.

摘要翻译： 手术入口装置包括入口壳体，入口套管和密封件。 入口壳体限定中心壳体轴线和中心壳体通道。 入口套管从入口壳体延伸并且尺寸设计成穿过组织以经由纵向开口进入下面的组织。 入口壳体的中心壳体通道和门静脉套管的纵向开口限定了用于接收和通过手术物体的通道。 密封件具有限定用于建立关于手术物体的一般密封关系的密封通道的内表面。 密封通道相对于中心壳体轴线径向偏移。 密封件适于围绕中心壳体轴线旋转以改变密封通道的定位，以在门静脉外壳内的外科手术对象的操纵时基本保持基本上密封的关系。

公开(公告)号：US08382716B2

公开(公告)日：2013-02-26

申请号：US13009967

申请日：2011-01-20

申请人： Robert C. Smith

发明人： Robert C. Smith

IPC分类号： A61M5/178

CPC分类号： A61B17/3496 ,  A61B17/3474 ,  A61B2090/0811

摘要： Pneumoperitoneum needles for providing and/or insufflating a corporal and/or abdominal cavity are provided. The pneumoperitoneum needle can include a housing, an elongate tubular body extending from a distal surface of the housing, and an elongate hollow tubular rod slidably received within the tubular body. The tubular body preferably includes a passage formed therethrough for connection to a gas administration system. The tubular rod preferably includes a blunt distal end defining an opening, and a proximal end portion defining an opening formed therethrough.

公开(公告)号：US08353875B2

公开(公告)日：2013-01-15

申请号：US13204804

申请日：2011-08-08

申请人： Robert C. Smith

发明人： Robert C. Smith

IPC分类号： A61M5/178

CPC分类号： A61B17/3498 ,  A61B17/3421 ,  A61B17/3462

摘要： A surgical access assembly including a housing, an elongate access member and a zero closure valve including a valve periphery having a collar, a tapered segment extending inwardly from the collar and a second segment extending contiguously from the tapered segment. First and second lips depend from the second segment of the zero closure valve and define lip edges which are in approximated closed relation when the zero closure valve is in the closed position to define a slit. The first and second lips each include a proximal lip surface having an outer surface portion and an inner surface portion interconnected by a curved surface. A support rib depends from the proximal lip surface of each of the first and second lips to define a gap therebetween to be in spaced relation when the valve is in the closed position and being positioned to contact the surgical instrument during insertion through the first and second lips.

摘要翻译： 一种外科进入组件，包括壳体，细长进入构件和零关闭阀，其包括具有轴环的阀周边，从所述套环向内延伸的锥形段和从所述锥形段连续延伸的第二段。 第一和第二唇缘从零关闭阀的第二部分上取向并限定当零关闭阀处于闭合位置以限定狭缝时处于近似闭合关系的唇边缘。 第一和第二唇部各自包括具有外表面部分和通过弯曲表面互连的内表面部分的近端唇表面。 支撑肋从所述第一和第二唇缘中的每一个的近侧唇表面取向，以在所述阀处于关闭位置时限定其间的间隔，并且在穿过所述第一和第二唇插入期间定位成接触所述外科器械 嘴唇

公开(公告)号：US08282603B2

公开(公告)日：2012-10-09

申请号：US12824528

申请日：2010-06-28

申请人： Robert C. Smith

发明人： Robert C. Smith

IPC分类号： A61M5/178

CPC分类号： A61B17/3462 ,  A61B2017/00477 ,  A61B2017/3464

摘要： A surgical access device includes a surgical sleeve defining a central longitudinal axis and having a longitudinal passageway to permit passage of a surgical object, and a diameter reduction assembly operably couplable to the surgical sleeve. The diameter reduction assembly includes a structure foundation and at least three stand-off elements mounted to the structure foundation. Each stand-off element is positioned to engage the surgical object and is independently movable relative to the remaining stand-off elements. The at least three stand-off elements are normally biased to a first position which urges the surgical object into general alignment with the central longitudinal axis, and are adapted for distal pivotal movement from the first position to a second position to facilitate passage of the surgical object, and for proximal pivotal movement from the first position to a third position to facilitate withdrawal of the surgical object.

摘要翻译： 手术进入装置包括限定中心纵向轴线并具有允许手术物体通过的纵向通道的外科套筒以及可操作地连接到手术套筒的直径减小组件。 直径减小组件包括安装在结构基础上的结构基础和至少三个分离元件。 每个支架元件被定位成接合手术物体并且可相对于其余的支撑元件独立地移动。 所述至少三个间隔元件通常被偏压到第一位置，所述第一位置促使所述手术物体与所述中心纵向轴线大致对准，并且适于从所述第一位置到第二位置的远端枢转运动，以促进所述外科手术 并且用于从第一位置到第三位置的近端枢转运动，以便于外科手术对象的撤回。

公开(公告)号：US20120253134A1

公开(公告)日：2012-10-04

申请号：US13415971

申请日：2012-03-09

申请人： Robert C. Smith

发明人： Robert C. Smith

IPC分类号： A61B1/32

CPC分类号： A61B17/0293 ,  A61B17/0218 ,  A61B17/3423 ,  A61B17/3431 ,  A61B2017/3429 ,  A61B2017/3435 ,  A61B2017/3466 ,  A61B2017/347

摘要： A surgical access assembly and method of use is disclosed, including an access member, a tissue engaging member, a sleeve extending from a portion of the membrane, and a fastening member to couple the access member and the sleeve. The access member includes proximal and distal ends, at least one lumen disposed therethrough, and defines a longitudinal axis. The tissue engaging member includes a membrane having proximal and distal ends with opposing openings, and a passage therethrough for receiving the access member. A length of the tissue engaging member may be selectively adjustable by a user so as to provide a retraction force. The sleeve extends proximally from a portion of the membrane. The sleeve has a proximal end and a distal end with opposing openings, the distal end of the sleeve defined by a portion of the membrane. A fastening member couples the access member and the sleeve.

摘要翻译： 公开了一种手术进入组件和使用方法，包括进入构件，组织接合构件，从膜的一部分延伸的套筒以及用于联接进入构件和套筒的紧固构件。 进入构件包括近端和远端，至少一个通过其设置的腔，并且限定纵向轴线。 组织接合构件包括具有近端和远端具有相对的开口的膜，以及用于接收进入构件的通道。 组织接合构件的长度可以由使用者选择性地调节以便提供收缩力。 套筒从膜的一部分向近侧延伸。 套筒具有近端和具有相对开口的远端，套筒的远端由膜的一部分限定。 紧固构件联接进入构件和套筒。

公开(公告)号：US08118783B2

公开(公告)日：2012-02-21

申请号：US12332391

申请日：2008-12-11

申请人： Robert C. Smith

发明人： Robert C. Smith

IPC分类号： A61M5/178

CPC分类号： A61B17/3498 ,  A61B17/3421 ,  A61B17/3462 ,  A61B17/3474 ,  A61B2017/3441 ,  A61B2017/3484

摘要： A surgical portal apparatus includes a portal member dimensioned to access tissue and having a longitudinal passageway therethrough to permit access to underlying tissue, and defining leading and trailing ends, a seal housing associated with the portal member and a seal mount at least partially disposed within the seal housing. The seal mount is adapted for rotational movement within the seal housing. The seal mount includes an instrument seal adapted to establish a substantial sealed relation with a surgical object introduced within the longitudinal passageway and a closure valve adapted to substantially close the longitudinal passageway in the absence of the object.

摘要翻译： 手术入口装置包括入口构件，入口构件的尺寸适于接近组织并且具有穿过其的纵向通道，以允许进入下面的组织，并且限定前端和后端，与入口构件相关联的密封壳体和至少部分地设置在内 密封住房。 密封安装件适于在密封壳体内旋转运动。 密封安装件包括适于与引入纵向通道内的手术物体建立实质密封关系的仪器密封件，以及适于在没有物体的情况下基本上封闭纵向通道的闭合阀。