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17 条记录 (耗时 0.028 秒)

    Catheter having durable and flexible segments
    1.
    发明授权
    Catheter having durable and flexible segments 失效
    导管具有耐用和灵活的部分

    公开(公告)号：US4985022A

    公开(公告)日：1991-01-15

    申请号：US275435

    申请日：1988-11-23

    申请人： Neal E. Fearnot ,  Melvin K. Hawkins ,  Richard B. Sisken

    发明人： Neal E. Fearnot ,  Melvin K. Hawkins ,  Richard B. Sisken

    IPC分类号： A61M25/00

    CPC分类号： A61M25/0045 ,  A61M25/005 ,  A61M25/0053

    摘要： An epidural catheter is disclosed having a durable and a flexible segment joined together. The flexible segment is inserted into a patient with the use of a well-known needle which is removed by passing the needle over the outside of the catheter. The flexible segment is atraumatic to the surrounding tissue. The flexible segment includes a plastic tube surrounded by a wire coil for pushing the tube into a passageway of the tissue. The distal end of the plastic tube and wire coil are joined to prevent unwinding of the coil when extracted. The tightly coupled wire coil also permits the flexible portion to be easily inserted into the passageway of the tissue. The durable segment joined to the flexible segment includes a stainless steel tube with a flat wire coil surrounding a length of the tube. The stainless steel tube permits fluid at an elevated pressure to pass through the hollow passageway therein without rupturing. The flat wire coil prevents kinking of the semi-rigid stainless steel tube. When a fluid at an elevated pressure is received, the distal end of the flexible tube is closed to diffuse the fluid passing through the length of the catheter. Slits are provided laterally on the side of the plastic tube for emitting and diffusing the fluid through the wire coil.

    Flexible, kink-resistant catheter
    3.
    发明授权
    Flexible, kink-resistant catheter 失效
    柔软，耐克耐火电缆

    公开(公告)号：US5069674A

    公开(公告)日：1991-12-03

    申请号：US458610

    申请日：1989-12-29

    申请人： Neal E. Fearnot ,  Richard B. Sisken

    发明人： Neal E. Fearnot ,  Richard B. Sisken

    IPC分类号： A61M25/00

    CPC分类号： A61M25/0045 ,  A61M25/005 ,  A61M25/0053

    摘要： An extremely small diameter epidural catheter is disclosed which is both flexible and kink-resistant when flexed. The catheter includes a tubular sheath or tube having a passageway therein for the delivery of fluids to biological tissue. Positioned in the passageway is a coil which is expansion-fitted therein to form a composite wall structure which is extremely flexible and kink-resistant. This composite wall structure is utilized to form a catheter having an extremely small outside diameter in a range of 0.010" to 0.032" for delivering acceptable levels of fluid volume. The coil comprises a plurality of closely spaced turns extending from the proximal to almost the distal end thereof. About the distal end of the coil is a number of loosely coupled or relaxed turns which adds further flexibility to the distal end of the catheter. The tubular sheath of the catheter comprises a high tensile or flexural strength material which does not rupture or tear when the catheter is bent or flexed. Maintaining the ratio of the outside diameter of the wire coil to the cross-sectional diameter of the individual turns within a range of 4 to 10 prevents the tubular sheath from either rupturing or kinking when the catheter is flexed or bent.

    Fluid injection device
    6.
    发明授权
    Fluid injection device 有权
    流体注射装置

    公开(公告)号：US08298187B2

    公开(公告)日：2012-10-30

    申请号：US12498867

    申请日：2009-07-07

    申请人： Bryan Woodard ,  James D. Purdy ,  David R. Wagner ,  Richard B. Sisken ,  Steven J. Charlebois ,  Gregory A. Frankland ,  Scott K. Philhower

    发明人： Bryan Woodard ,  James D. Purdy ,  David R. Wagner ,  Richard B. Sisken ,  Steven J. Charlebois ,  Gregory A. Frankland ,  Scott K. Philhower

    IPC分类号： A61M5/178

    CPC分类号： A61B17/3478 ,  A61B2017/00805 ,  A61M2025/0008 ,  A61M2025/0087 ,  A61M2210/1092

    摘要： A medical device is provided. The device includes a cannula with a lumen and a plurality of apertures and a visually perceptible indicator that is configured to allow the cannula to be positioned at an appropriate rotational position within the patient. A plurality of injection needles are disposed within the lumen and a first handle is fixed with respect to the cannula and a second handle is disposed in conjunction with the first handle and fixed to the proximal portion of each of the plurality of needles, the first handle is translatable with respect to the second handle to translate the plurality of needles from a first position where the distal portions of each of the plurality of needles are disposed within the lumen of the cannula, and a second position where the distal portion of each of the plurality of needles extends out of the lumen through their respective aperture.

    摘要翻译： 提供医疗设备。 该装置包括具有内腔和多个孔的套管和视觉上可察觉的指示器，其被配置为允许套管定位在患者体内的适当旋转位置。 多个注射针设置在内腔内，并且第一手柄相对于套管固定，第二手柄与第一手柄结合设置并固定到多个针中的每一个的近端部分，第一手柄 可相对于第二手柄平移，以将多个针从多个针的每个的远端部分设置在套管的内腔内的第一位置平移，以及第二位置，其中每个的远端部分 多个针通过其相应的孔从管腔延伸出来。

    FLUID INJECTION DEVICE
    7.
    发明申请
    FLUID INJECTION DEVICE 有权
    流体注射装置

    公开(公告)号：US20110009848A1

    公开(公告)日：2011-01-13

    申请号：US12498867

    申请日：2009-07-07

    申请人： Bryan Woodard ,  James D. Purdy ,  David R. Wagner ,  Richard B. Sisken ,  Steven J. Charlebois ,  Gregory A. Frankland ,  Scott K. Philhower

    发明人： Bryan Woodard ,  James D. Purdy ,  David R. Wagner ,  Richard B. Sisken ,  Steven J. Charlebois ,  Gregory A. Frankland ,  Scott K. Philhower

    IPC分类号： A61M5/32

    CPC分类号： A61B17/3478 ,  A61B2017/00805 ,  A61M2025/0008 ,  A61M2025/0087 ,  A61M2210/1092

    摘要： A medical device is provided. The device includes a cannula with a lumen defined therethrough and an upper portion, a right side portion, a bottom portion, and a left side portion each substantially equally spaced from their respective neighboring portion around the circumferential surface of the cannula. The cannula additionally includes a plurality of apertures disposed through the distal end portion to provide communication from the lumen and a visually perceptible indicator that is configured to allow the cannula to be positioned at an appropriate rotational position within the patient. A plurality of injection needles are disposed within the lumen and a first handle is fixed with respect to the cannula and a second handle is disposed in conjunction with the first handle and fixed to the proximal portion of each of the plurality of needles, the first handle is translatable with respect to the second handle to translate the plurality of needles from a first position where the distal portions of each of the plurality of needles are disposed within the lumen of the cannula, and a second position where the distal portion of each of the plurality of needles extends out of the lumen through their respective aperture.

    摘要翻译： 提供医疗设备。 该装置包括具有限定穿过其中的内腔的套管，以及上部，右侧部分，底部部分和左侧部分，所述上部部分，右侧部分，底部部分和左侧部分各自与其相应的相邻部分围绕套管的周面。 套管还包括穿过远端部分设置的多个孔，以提供来自内腔的通信和视觉上可察觉的指示器，其被配置为允许套管定位在患者体内的适当旋转位置。 多个注射针设置在内腔内，并且第一手柄相对于套管固定，第二手柄与第一手柄结合设置并固定到多个针中的每一个的近端部分，第一手柄 可相对于第二手柄平移，以将多个针从多个针的每个的远端部分设置在套管的内腔内的第一位置平移，以及第二位置，其中每个的远端部分 多个针通过其相应的孔从管腔延伸出来。

    Stent delivery system with a retention wire
    8.
    发明授权
    Stent delivery system with a retention wire 有权
    支架输送系统带保持线

    公开(公告)号：US08414633B2

    公开(公告)日：2013-04-09

    申请号：US11488331

    申请日：2006-07-18

    申请人： Richard B. Sisken

    发明人： Richard B. Sisken

    IPC分类号： A61F2/06

    CPC分类号： A61F2/958 ,  A61F2002/9583

    摘要： A delivery system is provided with a balloon catheter having a stent mounted thereon. A retention wire is provided to restrain the stent on the balloon of the balloon catheter. The retention wire is coupled to the catheter adjacent the distal end of the stent and adjacent the proximal end of the stent. The retention wire extends along the length of the stent adjacent the outer surface thereof. Thus, the retention wire may restrain the stent from moving longitudinally during inflation of the balloon.

    摘要翻译： 递送系统设置有其上安装有支架的气囊导管。 提供保持线以将支架限制在球囊导管的球囊上。 保持线联接到邻近支架的远端并且邻近支架近端的导管。 保持线沿支架的长度与其外表面相邻地延伸。 因此，保持线可以限制支架在气囊膨胀期间纵向移动。

    Flexible introducer sheath
    9.
    发明授权
    Flexible introducer sheath 有权
    柔性导引鞘

    公开(公告)号：US07674239B2

    公开(公告)日：2010-03-09

    申请号：US11273878

    申请日：2005-11-15

    申请人： Richard B. Sisken ,  Fred T. Parker

    发明人： Richard B. Sisken ,  Fred T. Parker

    IPC分类号： A61N1/30 ,  A61M27/00 ,  A61M31/00

    CPC分类号： A61M25/0012 ,  A61F2/82 ,  A61M25/005 ,  A61M25/0053

    摘要： An introducer apparatus and a method for forming an introducer apparatus. The apparatus comprises an inner liner having a passageway extending longitudinally therethrough. A coil in a stressed, radially expanded condition is positioned longitudinally around said inner tube. A polymeric outer tube is positioned longitudinally around the coil and the inner liner, and is bonded to the inner liner through the spaces between the turns of the coil. The polymeric outer tube is formed in a manner such that it maintains the coil in its stressed radially expanded condition. In a preferred embodiment, the inner liner and outer tube comprise a polyimide.

    摘要翻译： 一种导引器装置和一种形成导引器装置的方法。 该装置包括具有纵向延伸通过的通道的内衬。 处于应力的径向膨胀状态的线圈围绕所述内管纵向定位。 聚合物外管围绕线圈和内衬纵向定位，并且通过线圈的匝之间的空间结合到内衬。 聚合物外管以这样的方式形成，使得其将线圈保持在其应力的径向膨胀状态。 在优选实施例中，内衬和外管包括聚酰亚胺。

    Anchoring barb for attachment to a medical prosthesis
    10.
    发明授权
    Anchoring barb for attachment to a medical prosthesis 有权
    锚固倒钩用于附着于医疗假体

    公开(公告)号：US08029559B2

    公开(公告)日：2011-10-04

    申请号：US12506012

    申请日：2009-07-20

    申请人： Richard B. Sisken ,  Brian D. Choules ,  Benjamin Nickless ,  Charles W. Agnew

    发明人： Richard B. Sisken ,  Brian D. Choules ,  Benjamin Nickless ,  Charles W. Agnew

    IPC分类号： A61F2/06

    CPC分类号： A61F2/86 ,  A61F2/02 ,  A61F2/07 ,  A61F2/82 ,  A61F2/848 ,  A61F2002/8483 ,  A61F2220/0016

    摘要： Disclosed is an anchoring element for an implantable prosthesis that includes a barb, wherein the anchoring element, which includes a basal portion, comprises a thin layer of material, such as a cannula or sheet of metal, that extends or wraps at least partially around the strut of the prosthesis to which it is attached. The barb is configured to extend outward from the basal portion to penetrate adjacent tissue. The anchoring element is either permanently affixed to the strut, such as by laser or spot welding, crimping, or some other method of bonding, or allowed to slide longitudinally over the strut between two points or stops in order to relieve any excessive loads placed upon the barb that could cause fracture. The anchoring element and strut may be configured to limit axial rotation of the barb, while still allowing longitudinal movement. In another embodiment, the slidable anchoring element may be manipulated following initial deployment to reorient the barb toward the implantation site.

    摘要翻译： 公开了一种用于可植入假体的锚定元件，其包括倒钩，其中包括基部的锚定元件包括薄层材料，例如套管或金属片，其至少部分地围绕 与其相连的假肢的支柱。 倒钩构造成从基部向外延伸以穿透相邻的组织。 锚定元件永久地固定在支柱上，例如通过激光或点焊，压接或某种其它粘合方法，或者允许在两个点或止挡之间在支柱上纵向滑动，以便减轻放置在 可能导致骨折的倒钩。 锚定元件和支柱可以被配置为限制倒钩的轴向旋转，同时仍允许纵向运动。 在另一个实施例中，可以在初始部署之后操纵可滑动锚定元件，以将倒钩朝向植入部位重新定向。