Prosthesis delivery
    4.
    发明授权
    Prosthesis delivery 有权
    假体运送

    公开(公告)号:US06251132B1

    公开(公告)日:2001-06-26

    申请号:US09175791

    申请日:1998-10-20

    IPC分类号: A61F202

    摘要: This invention provides smooth delivery and accurate positioning of prostheses in the body. In embodiments, systems are provided that include elongate members extending generally along the axis of a supporting catheter to a free ends. The elongate members extend through openings in the prosthesis to maintain the position of the prosthesis on the catheter. The prosthesis can be released from the catheter by relative axial motion of the catheter and the elongate members such that the free ends are removed from the openings in the prosthesis. In embodiments, the elongate members hold the distal end of a self-expanding stent at a desired axial location and in radial compaction as a restraining sheath is withdrawn. The friction between the sheath and stent puts the stent under tension, which reduces the radial force on the sheath wall, allowing smoother retraction. Proximal portions of the stent radially expand and axially shorten. The distal end, however, is maintained at the desired axial location and released from the catheter to contact the body lumen wall without substantial axial shortening.

    摘要翻译: 本发明提供了假体在体内的平稳输送和精确定位。 在实施例中,提供了包括通常沿着支撑导管的轴线延伸到自由端的细长构件的系统。 细长构件延伸穿过假体中的开口,以维持假体在导管上的位置。 假体可以通过导管和细长构件的相对轴向运动从导管释放,使得自由端从假体中的开口移除。 在实施例中,细长构件将自膨胀支架的远端保持在期望的轴向位置处,并且随着约束护套被拉出而将其径向压紧。 护套和支架之间的摩擦力使支架处于张力状态,从而降低了护套壁上的径向力,从而实现了更平滑的收缩。 支架的近端部分径向扩张并轴向缩短。 然而,远端保持在期望的轴向位置并且从导管释放以接触体腔壁而没有显着的轴向缩短。

    Prosthesis delivery
    5.
    发明授权

    公开(公告)号:US5480423A

    公开(公告)日:1996-01-02

    申请号:US65238

    申请日:1993-05-20

    摘要: This invention provides smooth delivery and accurate positioning of prostheses in the body. In embodiments, systems are provided that include elongate members extending generally along the axis of a supporting catheter to a free ends. The elongate members extend through openings in the prosthesis to maintain the position of the prosthesis on the catheter. The prosthesis can be released from the catheter by relative axial motion of the catheter and the elongate members such that the free ends are removed from the openings in the prosthesis. In embodiments, the elongate members hold the distal end of a self-expanding stent at a desired axial location and in radial compaction as a restraining sheath is withdrawn. The friction between the sheath and stent puts the stent under tension, which reduces the radial force on the sheath wall, allowing smoother retraction. Proximal portions of the stent radially expand and axially shorten. The distal end, however, is maintained at the desired axial location and released from the catheter to contact the body lumen wall without substantial axial shortening.

    Prosthesis delivery
    6.
    发明授权

    公开(公告)号:US5824058A

    公开(公告)日:1998-10-20

    申请号:US897944

    申请日:1997-07-21

    摘要: This invention provides smooth delivery and accurate positioning of prostheses in the body. In embodiments, systems are provided that include elongate members extending generally along the axis of a supporting catheter to a free ends. The elongate members extend through openings in the prosthesis to maintain the position of the prosthesis on the catheter. The prosthesis can be released from the catheter by relative axial motion of the catheter and the elongate members such that the free ends are removed from the openings in the prosthesis. In embodiments, the elongate members hold the distal end of a self-expanding stent at a desired axial location and in radial compaction as a restraining sheath is withdrawn. The friction between the sheath and stent puts the stent under tension, which reduces the radial force on the sheath wall, allowing smoother retraction. Proximal portions of the stent radially expand and axially shorten. The distal end, however, is maintained at the desired axial location and released from the catheter to contact the body lumen wall without substantial axial shortening.

    Prosthesis delivery
    7.
    发明授权
    Prosthesis delivery 失效
    假体运送

    公开(公告)号:US06656212B2

    公开(公告)日:2003-12-02

    申请号:US09751084

    申请日:2000-12-29

    IPC分类号: A61F206

    摘要: This invention provides smooth delivery and accurate positioning of prostheses in the body. In embodiments, systems are provided that include elongate members extending generally along the axis of a supporting catheter to a free ends. The elongate members extend through openings in the prosthesis to maintain the position of the prosthesis on the catheter. The prosthesis can be released from the catheter by relative axial motion of the catheter and the elongate members such that the free ends are removed from the openings in the prosthesis. In embodiments, the elongate members hold the distal end of a self-expanding stent at a desired axial location and in radial compaction as a restraining sheath is withdrawn. The friction between the sheath and stent puts the stent under tension, which reduces the radial force on the sheath wall, allowing smoother retraction. Proximal portions of the stent radially expand and axially shorten. The distal end, however, is maintained at the desired axial location and released from the catheter to contact the body lumen wall without substantial axial shortening.

    摘要翻译: 本发明提供了假体在体内的平稳输送和精确定位。 在实施例中,提供了包括通常沿着支撑导管的轴线延伸到自由端的细长构件的系统。 细长构件延伸穿过假体中的开口,以维持假体在导管上的位置。 假体可以通过导管和细长构件的相对轴向运动从导管释放,使得自由端从假体中的开口移除。 在实施例中,细长构件将自膨胀支架的远端保持在期望的轴向位置处,并且随着约束护套被拉出而将其径向压紧。 护套和支架之间的摩擦力使支架处于张力状态,从而降低了护套壁上的径向力,从而实现了更平滑的收缩。 支架的近端部分径向扩张并轴向缩短。 然而,远端保持在期望的轴向位置并且从导管释放以接触体腔壁而没有显着的轴向缩短。

    Method of forming a co-extruded balloon for medical purposes
    9.
    发明授权
    Method of forming a co-extruded balloon for medical purposes 失效
    形成用于医疗目的的共挤压球囊的方法

    公开(公告)号:US06482348B1

    公开(公告)日:2002-11-19

    申请号:US09542080

    申请日:2000-04-03

    IPC分类号: B29C4922

    摘要: A method of forming a balloon for medical purposes comprising co-extruding in a tubular shape a base structural layer of a member selected from the group consisting oft polyamides, polycarbonates, polyesters and copolymers thereof and a heat sealable layer selected from the group consisting of polyethylene and copolymers thereof. The tubular member is then biaxially oriented by inflating the tube with a gas to a predetermined central diameter greater then the initial diameter of the tube and simultaneously heating the inflated tube to a temperature sufficient to biaxially orient the base structural layer. The member is then cooled the inflated tubular member and then elevated in temperature for a second time to the biaxially orienting temperature. The twice-heated tube is allowed to cool and the gas is withdrawn whereby the tubular member will assume a generally tubular shape and the main structural layer will remain biaxially orientated and the heat sealable layer will not be biaxially orientated.

    摘要翻译: 一种形成用于医疗目的的球囊的方法,包括以管状共挤出选自聚酰胺,聚碳酸酯,聚酯及其共聚物的成员的基础结构层和选自聚乙烯的可热封层 及其共聚物。 然后通过将管子充气至预定的中心直径大于管的初始直径并同时将膨胀的管加热到足以使基部结构层双轴取向的温度,将管状构件双轴取向。 然后将构件冷却膨胀的管状构件,然后将温度升高第二次以达到双轴取向温度。 允许两次加热的管冷却并且气体被排出,由此管状构件将呈现大致管状形状,并且主结构层将保持双轴取向并且可热封层将不会双轴取向。

    Prosthesis delivery system with dilating tip
    10.
    发明授权
    Prosthesis delivery system with dilating tip 失效
    具有扩张尖端的假体输送系统

    公开(公告)号:US5902333A

    公开(公告)日:1999-05-11

    申请号:US517456

    申请日:1995-08-21

    IPC分类号: A61F2/04 A61F2/06

    摘要: This invention provides prosthesis delivery systems with tips constructed to permit both easier advance into the body and easier removal from the body after expanding the prosthesis. The tip includes a distal taper that can gently widen a lumen during advance in instances where the lumen is narrower than the tip and a proximal taper that can gently widen the lumen on retraction in instances where the prosthesis does not immediately expand the lumen to provide clearance for the larger diameter tip.

    摘要翻译: 本发明提供假体输送系统,其具有构造成允许在扩张假体之后更容易前进到身体中并且更容易地从身体移除的尖端。 该尖端包括远端锥形,其可以在腔较前端狭窄的情况下预先轻轻加宽内腔,以及在假体不立即使内腔膨胀以提供间隙的情况下在收缩时可轻轻加宽内腔的近端锥形 对于较大直径的尖端。