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    • 1. 发明申请
    • APPARATUS FOR DEPLOYING BODY IMPLANTABLE STENTS
    • 装备身体可植入的装置
    • WO1994015549A1
    • 1994-07-21
    • PCT/US1993010978
    • 1993-11-17
    • SCHNEIDER (USA) INC.
    • SCHNEIDER (USA) INC.HEALY, Steven, J.YUREK, Matthew, T.
    • A61F02/06
    • A61F2/958A61F2/95A61F2/966A61F2002/9528A61F2002/9583A61F2002/9665
    • A stent deployment device includes a flexible, elongate interior catheter (38) and a retaining structure (20) cooperating with the catheter (38) to support a stent along a distal end support region of the catheter (38). The stent is supported in a reduced radius delivery state to facilitate delivery to a treatment site in a body lumen, by advancing the device over a previously positioned guidewire. An opening at the distal end of the device receives the guidewire into a guidewire lumen (46) of the interior catheter (38). A second opening (52) through the catheter wall just proximally of the support region allows passage of the guidewire to the exterior of the catheter, whereby the guidewire is contained within the device only along the distal end region. The retaining means (20) can include an exterior catheter (20) surrounding the interior catheter (38) and stent, and moveable axially relative to the interior catheter (38). A portion of the guidewire proximally of the second opening (52) is contained between the catheters, and can be removed from the exterior catheter (20) through a slit (53) running axially along the exterior catheter (20). Alternatively, the retaining means can include a pair of spaced apart sleeves (124, 126) integral with the interior catheter (112) and frictionally retaining opposite ends of the stent, to maintain the stent in the delivery state. In this case the catheter further supports a dilatation balloon (122) surrounded by the stent. The balloon (122) is expanded to free the stent from the sleeves (124, 126).
    • 支架展开装置包括柔性细长内部导管(38)和与导管(38)配合以沿导管(38)的远端支撑区域支撑支架的保持结构(20)。 通过将装置推进在先前定位的导丝上,支架以减小的半径递送状态被支撑以便于输送到体腔内的治疗部位。 设备远端处的开口将导丝接纳到内导管(38)的导丝管腔(46)内。 穿过导管壁的第二个开口(52)可靠近支撑区域的近侧,允许导丝通过导管的外部,由此导丝仅沿着远端区域容纳在装置内。 保持装置(20)可以包括围绕内部导管(38)和支架的外部导管(20),并且可相对于内部导管(38)沿轴向移动。 在第二开口(52)的近侧的导丝线的一部分被容纳在导管之间,并且可以通过沿着外部导管(20)轴向运动的狭缝(53)从外部导管(20)移除。 或者,保持装置可以包括与内部导管(112)成一体并且摩擦地保持支架的相对端的一对间隔开的套筒(124,126),以将支架保持在输送状态。 在这种情况下,导管还支撑由支架包围的扩张球囊(122)。 将球囊(122)膨胀以从套筒(124,126)释放支架。
    • 2. 发明申请
    • ROLLING MEMBRANE STENT DELIVERY DEVICE
    • 滚动膜移动装置
    • WO1996032078A1
    • 1996-10-17
    • PCT/IB1996000146
    • 1996-02-26
    • SCHNEIDER (USA) INC.
    • SCHNEIDER (USA) INC.KUSLEIKA, Richard, S.YUREK, Matthew, T.
    • A61F02/06
    • A61F2/966A61F2/95A61F2210/0019
    • A device for deploying radially self-expanded stents and other radially expandable stents includes an inner catheter (28, 82, 130, 142), an outer catheter (18, 88, 132, 146) surrounding the inner catheter, and a tubular stent retaining sheath (22, 92, 118, 150) formed of a rolling membrane. The sheath is doubled over upon itself to provide an inner sheath layer (46, 104, 120, 156) attached to the inner catheter, and an outer sheath layer (48, 108, 122, 162) attached to the outer catheter. The sheath layers extend along and surround a radially self-expanding stent (56, 102, 124, 160), to maintain the stent distally of the inner catheter and in a radially compressed, axially elongated state. Distally of the stent, the inner and outer sheath layers converge and are narrowed in the distal direction to define a tapered distal tip (26, 106, 128, 164). To release the stent, the outer catheter is moved proximally to roll the membrane away from its surrounding relation to the stent, whereupon the stent radially self-expands progressively, beginning at its distal end. When completely retracted after stent release, the sheath surrounds a distal region of the inner catheter, and can provide a protective layer between arterial tissue and a dilatation balloon (58, 110, 148) supported along the distal region. As an alternative, a stent formed of a recovery metal can be plastically deformed into a reduced radius state for delivery, which facilitates use of a more flexible stent retaining sheath. A further alternative involves securing the sheath proximally of the dilatation balloon, so that sheath retraction leaves the dilatation balloon exposed, rather than covered by the sheath.
    • 用于展开径向自扩张支架和其他可径向扩张的支架的装置包括内导管(28,82,130,142),围绕内导管的外导管(18,88,132,146)和管状支架保持 鞘(22,92,118,150)由滚动膜形成。 护套自身加倍,以提供附接到内导管的内护套层(46,104,120,156)和附接到外导管的外护套层(48,108,122,162)。 护套层沿着径向自扩张支架(56,102,124,160)延伸并围绕径向自扩张支架(56,102,124,160),以将支架保持在远离内导管并处于径向压缩的轴向伸长状态。 在支架的远侧,内鞘层和外护套层在远端方向会聚并且变窄,以限定锥形远端尖端(26,106,128,164)。 为了释放支架,外导管向近侧移动以将膜从其与支架的周围关系相隔离,于是支架从其远端开始逐渐自动扩张。 当支架释放后完全缩回时,护套围绕内导管的远侧区域,并且可以在动脉组织与沿着远侧区域支撑的扩张球囊(58,110,148)之间提供保护层。 作为替代方案,由回收金属形成的支架可以塑性变形成用于输送的半径减小的状态,这有助于使用更柔性的支架保持护套。 另外的替代方案是将护套固定在扩张球囊的近侧,使得护套缩回离开扩张球囊而不是被护套覆盖。
    • 6. 发明公开
    • ROLLING MEMBRANE STENT DELIVERY DEVICE
    • 具有滚动隔膜支架置入DEVICE
    • EP0820259A1
    • 1998-01-28
    • EP96901941.0
    • 1996-02-26
    • SCHNEIDER (USA) INC.
    • KUSLEIKA, Richard, S.YUREK, Matthew, T.
    • A61F2
    • A61F2/966A61F2/95A61F2210/0019
    • A device for deploying radially self-expanded stents and other radially expandable stents includes an inner catheter (28, 82, 130, 142), an outer catheter (18, 88, 132, 146) surrounding the inner catheter, and a tubular stent retaining sheath (22, 92, 118, 150) formed of a rolling membrane. The sheath is doubled over upon itself to provide an inner sheath layer (46, 104, 120, 156) attached to the inner catheter, and an outer sheath layer (48, 108, 122, 162) attached to the outer catheter. The sheath layers extend along and surround a radially self-expanding stent (56, 102, 124, 160), to maintain the stent distally of the inner catheter and in a radially compressed, axially elongated state. Distally of the stent, the inner and outer sheath layers converge and are narrowed in the distal direction to define a tapered distal tip (26, 106, 128, 164). To release the stent, the outer catheter is moved proximally to roll the membrane away from its surrounding relation to the stent, whereupon the stent radially self-expands progressively, beginning at its distal end. When completely retracted after stent release, the sheath surrounds a distal region of the inner catheter, and can provide a protective layer between arterial tissue and a dilatation balloon (58, 110, 148) supported along the distal region. As an alternative, a stent formed of a recovery metal can be plastically deformed into a reduced radius state for delivery, which facilitates use of a more flexible stent retaining sheath. A further alternative involves securing the sheath proximally of the dilatation balloon, so that sheath retraction leaves the dilatation balloon exposed, rather than covered by the sheath.
    • 7. 发明公开
    • APPARATUS FOR DEPLOYING BODY IMPLANTABLE STENTS
    • 装置解放AN IMPLANTABLE支架上。
    • EP0676936A1
    • 1995-10-18
    • EP94903259.0
    • 1993-11-17
    • SCHNEIDER (USA) INC.
    • HEALY, Steven, J.YUREK, Matthew, T.
    • A61F2A61M25
    • A61F2/958A61F2/95A61F2/966A61F2002/9528A61F2002/9583A61F2002/9665
    • A stent deployment device includes a flexible, elongate interior catheter (38) and a retaining structure (20) cooperating with the catheter (38) to support a stent along a distal end support region of the catheter (38). The stent is supported in a reduced radius delivery state to facilitate delivery to a treatment site in a body lumen, by advancing the device over a previously positioned guidewire. An opening at the distal end of the device receives the guidewire into a guidewire lumen (46) of the interior catheter (38). A second opening (52) through the catheter wall just proximally of the support region allows passage of the guidewire to the exterior of the catheter, whereby the guidewire is contained within the device only along the distal end region. The retaining means (20) can include an exterior catheter (20) surrounding the interior catheter (38) and stent, and moveable axially relative to the interior catheter (38). A portion of the guidewire proximally of the second opening (52) is contained between the catheters, and can be removed from the exterior catheter (20) through a slit (53) running axially along the exterior catheter (20). Alternatively, the retaining means can include a pair of spaced apart sleeves (124, 126) integral with the interior catheter (112) and frictionally retaining opposite ends of the stent, to maintain the stent in the delivery state. In this case the catheter further supports a dilatation balloon (122) surrounded by the stent. The balloon (122) is expanded to free the stent from the sleeves (124, 126).