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232 条记录 (耗时 0.033 秒)

    Controllable Stiffness Guidewire
    62.
    发明申请
    Controllable Stiffness Guidewire 审中-公开
    可控刚度导丝

    公开(公告)号：US20120191012A1

    公开(公告)日：2012-07-26

    申请号：US13357043

    申请日：2012-01-24

    申请人： Albert K. Chin ,  Lishan Aklog

    发明人： Albert K. Chin ,  Lishan Aklog

    IPC分类号： A61M25/09

    CPC分类号： A61M25/09 ,  A61M2025/0915

    摘要： Controllable stiffness guidewires and methods of using such guidewires are disclosed. According to aspects illustrated herein, there is provided a controllable stiffness guidewire that includes a substantially flexible core wire having a distal section and a proximal section. A plurality of beads may be slidably disposed between the distal section and the proximal section of the core wire. In an embodiment, the beads may be contiguous with one another. The guidewire may further include an actuator designed to compress the beads against one another along the core wire. By compressing the beads against one another, the stiffness of the core wire, and thus the guidewire, can be variably increased between substantially flexible and substantially rigid.

    摘要翻译： 公开了可控制的刚性导丝和使用这种导线的方法。 根据本文所示的方面，提供了一种可控制的刚度导丝，其包括具有远侧部分和近端部分的基本上柔性的芯线。 多个珠可以可滑动地设置在芯线的远端部分和近侧部分之间。 在一个实施方案中，珠可以彼此邻接。 导丝可以进一步包括致动器，其被设计成沿着芯线相互压缩珠。 通过将珠压靠在一起，芯线的刚度以及因此的导丝在基本上柔性且基本上刚性之间可以可变地增加。

    ENDOSCOPIC CANNULA AND METHODS OF USING THE SAME
    63.
    发明申请
    ENDOSCOPIC CANNULA AND METHODS OF USING THE SAME 审中-公开
    内镜肛门及其使用方法

    公开(公告)号：US20120149983A1

    公开(公告)日：2012-06-14

    申请号：US13237537

    申请日：2011-09-20

    申请人： Albert K. Chin

    发明人： Albert K. Chin

    IPC分类号： A61B1/01

    CPC分类号： A61B17/3421 ,  A61B1/00082 ,  A61B1/00135 ,  A61B2017/00557 ,  A61B2017/320048 ,  A61B2017/3454

    摘要： The present disclosure provides methods and systems for endoscopic visualization inside the human body and performing clinical procedures under endoscopic guidance. In one embodiment, an endoscopic cannula of the present disclosure may include an elongated body having a channel along which an endoscope can be advanced. The cannula further includes a tip about a distal end of the elongated body, which can be inflated from a substantially firm collapsed state to an expanded state. The cannula also includes a tube situated within the channel and attached at its distal end to a distal region of the tip to permit forward advancement of the tube along with the tip when the tip is expanded. The tube in combination with the channel form a working conduit for passing surgical instruments beyond the tip.

    摘要翻译： 本公开提供了用于人体内部内窥镜可视化的方法和系统，并且在内窥镜引导下执行临床程序。 在一个实施例中，本发明的内窥镜套管可以包括细长主体，其具有内窥镜可沿着该通道前进的通道。 套管还包括围绕细长体的远端的尖端，其可以从基本上坚固的折叠状态膨胀到膨胀状态。 插管还包括位于通道内的管，并且在其远端处附接到尖端的远侧区域，以允许当尖端膨胀时管与前端一起向前推进。 该管与通道组合形成用于使手术器械超出尖端的工作导管。

    Blower Instrument, Apparatus and Methods of Using
    64.
    发明申请
    Blower Instrument, Apparatus and Methods of Using 有权
    鼓风机，仪器和使用方法

    公开(公告)号：US20110213296A1

    公开(公告)日：2011-09-01

    申请号：US12714037

    申请日：2010-02-26

    申请人： Amit Agarwal ,  Michael C. Stewart ,  Alfredo Cantu ,  Albert K. Chin

    发明人： Amit Agarwal ,  Michael C. Stewart ,  Alfredo Cantu ,  Albert K. Chin

    IPC分类号： A61M37/00

    CPC分类号： A61M3/0279 ,  A61B17/02 ,  A61B2017/00477 ,  A61B2017/0243 ,  A61B2017/306 ,  A61B2217/007 ,  A61M3/027

    摘要： A surgical blower for providing a directed stream to clear a surgical site, that can be used in multiple different use modes. In one use mode, the surgical blower is handheld by a user during operation. In another mode, a distal end portion of the blower is fixed to a foot of a stabilizer instrument and the handle of the blower is handheld. In another mode, a distal end portion of the blower is fixed to a foot of a stabilizer instrument and the handle of the blower is fixed to a stationary object such as a sternal retractor. In another mode, the distal end of the blower is free and the handle of the blower is fixed to a stationary object. An apparatus including a blower and a stabilizer is provided. Methods of using the blower as well as the apparatus are also provided.

    摘要翻译： 用于提供定向流以清除外科手术部位的手术鼓风机，其可以以多种不同的使用模式使用。 在一种使用模式中，手术鼓风机在使用过程中由使用者手持。 在另一种模式中，鼓风机的远端部分固定在稳定器件的底部，并且鼓风机的把手是手持式的。 在另一种模式中，鼓风机的远端部分固定在稳定器具的脚上，鼓风机的把手固定在诸如胸骨牵开器之类的静止物体上。 在另一种模式中，鼓风机的远端是自由的，鼓风机的把手固定在固定的物体上。 提供了包括鼓风机和稳定器的装置。 还提供了使用鼓风机以及设备的方法。

    Tissue separation cannula with dissection probe and method
    67.
    发明授权
    Tissue separation cannula with dissection probe and method 有权

    公开(公告)号：US06277137B1

    公开(公告)日：2001-08-21

    申请号：US09436936

    申请日：1999-11-08

    申请人： Albert K. Chin

    发明人： Albert K. Chin

    IPC分类号： A61B1700

    CPC分类号： A61B17/00008 ,  A61B17/0218 ,  A61B17/11 ,  A61B17/320016 ,  A61B17/3417 ,  A61B90/36 ,  A61B90/361 ,  A61B2017/00243 ,  A61B2017/00473 ,  A61B2017/00969 ,  A61B2017/320044 ,  A61B2017/320048

    摘要： A cannula includes a tubular body having a proximal end and distal blunt end, at least one lumen extending the length of the body, an endoscope having a lighted, viewing end disposed in the lumen near the distal end of the body, and a transparent, tissue-separating tip substantially covering the distal end of the body. The tissue-separating tip is slightly blunted to inhibit avulsion of tissue and lateral vessels along the dissected cavity formed thereby. Endoscopic viewing through the tip is enhanced by tapering the inner walls thereof to a cusp adjacent the blunt tip in order to reduce visual distortion. Alternatively, a cannula includes a dissection probe and a removable or deflectable tip for exposing the probe and endoscope to facilitate viewing and the dissection of connective tissue and lateral vessels along the dissected cavity. Methods of using such cannulas produce an elongated cavity along the course of a blood vessel for subsequent harvesting or other treatment of the isolated blood vessel. The dissection probe includes a partial ring that is substantially coaxially aligned with the generally cylindrical body of the cannula for passing along the vessel and past lateral branching vessels, and that is manipulatable at the distal end of the cannula in view of the endoscope which visualizes through the transparent tip. Where the vessel is an artery, an initial incision is made, for example, above the superior epigastric artery and the overlying tissue is bluntly dissected down to the superior epigastric artery to establish an initial portion of an elongated working cavity of bluntly-dissected tissue. Lateral arterial branches are doubly clipped or otherwise doubly occluded, and then severed to isolate the artery for use in revascularizing the coronary artery, for example, by transection of the superior epigastric or internal mammary artery and attachment of the transected end to the coronary artery downstream of a significant stenotic occlusion.

    Orbital dissection cannula and method
    68.
    发明授权
    Orbital dissection cannula and method 失效
    轨道解剖套管及方法

    公开(公告)号：US5984937A

    公开(公告)日：1999-11-16

    申请号：US828578

    申请日：1997-03-31

    申请人： Stephen A. Morse ,  Peter L. Callas ,  Geoffrey A. Orth ,  Andrew G. C. Frazier ,  Albert K. Chin

    发明人： Stephen A. Morse ,  Peter L. Callas ,  Geoffrey A. Orth ,  Andrew G. C. Frazier ,  Albert K. Chin

    IPC分类号： A61B17/00 ,  A61B17/32 ,  A61B17/34

    CPC分类号： A61B17/00008 ,  A61B2017/00969 ,  A61B2017/320044 ,  A61B2017/3445

    摘要： A cannula and method provide manually manipulable orientation of a dissection probe carried eccentricity on the cannula for rotational and translational positioning relative to the field of view of an endoscope at a distal end of the cannula. Rotation of the cannula at fixed axial position relative to the endoscope, and rotational and translational positioning of the dissection probe relative to the distal end of the cannula provide wide-area access within the surgical site for bluntly dissecting connective tissue surrounding a vessel of interest being harvested.

    摘要翻译： 插管和方法提供了在套管上承载偏心的解剖探针的手动可操纵取向，用于相对于插管的远端处的内窥镜的视场进行旋转和平移定位。 插管在相对于内窥镜的固定的轴向位置的旋转以及解剖探针相对于套管的远端的旋转和平移定位提供了在手术部位内的广泛进入，用于直接解剖围绕感兴趣的血管的结缔组织 收获。

    Tissue separation cannula
    69.
    发明授权
    Tissue separation cannula 有权

    公开(公告)号：US5976168A

    公开(公告)日：1999-11-02

    申请号：US255075

    申请日：1999-02-22

    申请人： Albert K. Chin

    发明人： Albert K. Chin

    IPC分类号： A61B17/00 ,  A61B17/02 ,  A61B17/11 ,  A61B17/32 ,  A61B17/34 ,  A61B19/00

    CPC分类号： A61B17/00008 ,  A61B17/11 ,  A61B17/320016 ,  A61B17/3417 ,  A61B17/0218 ,  A61B2017/00243 ,  A61B2017/00473 ,  A61B2017/00969 ,  A61B2017/320044 ,  A61B2017/320048 ,  A61B90/36 ,  A61B90/361

    摘要： A cannula includes a tubular body having a proximal end and distal blunt end, at least one lumen extending the length of the body, an endoscope having a lighted, viewing end disposed in the lumen near the distal end of the body, and a transparent, tissue-separating tip substantially covering the distal end of the body. The tissue-separating tip is slightly blunted to inhibit avulsion of tissue and lateral vessels along the dissected cavity formed thereby. Endoscopic viewing through the tip is enhanced by tapering the inner walls thereof to a cusp adjacent the blunt tip in order to reduce visual distortion. Alternatively, a cannula includes a dissection probe and a removable or deflectable tip for exposing the probe and endoscope to facilitate viewing and the dissection of connective tissue and lateral vessels along the dissected cavity. Methods of using such cannulas produce an elongated cavity along the course of a blood vessel for subsequent harvesting or other treatment of the isolated blood vessel. The dissection probe includes a partial ring that is substantially coaxially aligned with the generally cylindrical body of the cannula for passing along the vessel and past lateral branching vessels, and that is manipulatable at the distal end of the cannula in view of the endoscope which visualizes through the transparent tip. Where the vessel is an artery, an initial incision is made, for example, above the superior epigastric artery and the overlying tissue is bluntly dissected down to the superior epigastric artery to establish an initial portion of an elongated working cavity of bluntly-dissected tissue. Lateral arterial branches are doubly clipped or otherwise doubly occluded, and then severed to isolate the artery for use in revascularizing the coronary artery, for example, by transection of the superior epigastric or internal mammary artery and attachment of the transected end to the coronary artery downstream of a significant stenotic occlusion.

    Method for creating a mediastinal working space
    70.
    发明授权
    Method for creating a mediastinal working space 失效
    创建纵隔工作空间的方法

    公开(公告)号：US5823946A

    公开(公告)日：1998-10-20

    申请号：US869830

    申请日：1997-06-05

    申请人： Albert K. Chin

    发明人： Albert K. Chin

    IPC分类号： A61B17/00 ,  A61B17/02 ,  A61B17/22 ,  A61B17/32 ,  A61B17/34 ,  A61B19/00 ,  A61B19/02

    CPC分类号： A61B17/0218 ,  A61B17/0281 ,  A61B17/22032 ,  A61B17/3417 ,  A61B90/50 ,  A61B17/3462 ,  A61B2017/00243 ,  A61B2017/00261 ,  A61B2017/00535 ,  A61B2017/00557 ,  A61B2017/320048 ,  A61B2090/306

    摘要： A mechanical lifting retractor is provided which increases working space in the chest for cardiac surgery by temporarily expanding the space between the rib cage and the pericardium. The lifting device has a pair of parallel right-angled retractors. Distal portions of the retractors are insertable in side-by-side parallel relation between a pair of adjacent ribs in the rib cage and into the mediastinal space between the ribs and sternum and the pericardium beneath them. The distal portions are pivotable into a lifting position in which they are separated by a rotational angle of approximately 180.degree.. Following insertion of the distal portions into the mediastinal space, the distal portions are rotated into the lifting position and oriented in the sagittal plane such that each distal portion extends beneath one of the ribs. A lifting force is applied to the lifting retractor, causing the distal portions to engage the ribs and to lift the rib cage and thereby enlarging the mediastinal space. The lifting force is maintained for the duration of the surgical procedure.

    摘要翻译： 提供了一种机械提升牵开器，其通过临时扩大肋骨和心包之间的空间来增加用于心脏手术的胸部中的工作空间。 提升装置具有一对平行的直角牵开器。 牵开器的远端部可以并排布置在肋骨笼中的一对相邻的肋之间并且在肋骨和胸骨之间的纵隔空间以及它们之下的心包中。 远端部分可转动到提升位置，在该提升位置，它们分开大约180°的旋转角度。 在将远端部分插入纵膈空间之后，远端部分转动到提升位置并且在矢状平面中定向，使得每个远端部分在一个肋下延伸。 提升力被施加到提升牵开器，使得远端部分接合肋并且提升肋骨架，从而扩大纵隔空间。 在外科手术期间维持提升力。