Biodegradable mesh and film stent
    21.
    发明授权
    Biodegradable mesh and film stent 失效
    可生物降解的网膜和薄膜支架

    公开(公告)号:US5629077A

    公开(公告)日:1997-05-13

    申请号:US266964

    申请日:1994-06-27

    摘要: The biodegradable mesh and film stent for use in blood vessels is formed of a sheet of a composite mesh material formed of biodegradable high strength polymer fibers bonded together with a second biodegradable adhesive polymer, and laminated on at least one side with a thin film of a third biodegradable polymer. The biodegradable mesh and film material is formed as a sheet and cut in a shape that can be used as a stent, such as a "belt-buckle" type shape, the ends of which can be joined in a contractible, expandable loop. In the method of making the biodegradable composite mesh and film stent, the composite mesh is preferably formed from a weave formed of high strength biodegradable polymeric fibers, and a plurality of low temperature melting biodegradable polymeric fibers. In an alternate embodiment, the high strength fibers are commingled with the low temperature melting fibers. In another alternate embodiment, the high strength fibers are coated with the low temperature melting polymer. The composite mesh is covered on at least one side by a laminating film, and is then cut into the shape of the stent.

    摘要翻译: 用于血管的可生物降解的网膜和薄膜支架由一片由可生物降解的高强度聚合物纤维形成的复合网格材料形成,该聚合物纤维与第二可生物降解的粘合剂聚合物结合在一起,并且在至少一侧上用薄膜 第三种可生物降解的聚合物。 可生物降解的网状物和薄膜材料形成为片材,并且被切割成能够用作支架的形状,例如“带扣”形状,其端部可以以可收缩的可扩张环接合。 在制造可生物降解复合网和膜支架的方法中,复合网优选由由高强度可生物降解的聚合物纤维形成的织物和多个低温熔融的可生物降解的聚合物纤维形成。 在替代实施例中,高强度纤维与低温熔融纤维混合。 在另一个替代实施例中,高强度纤维被低温熔融聚合物涂覆。 复合网在至少一侧用层压膜覆盖,然后切割成支架的形状。

    Flexible structural apparatus, spring, wound covering, and methods
    22.
    发明授权
    Flexible structural apparatus, spring, wound covering, and methods 有权
    柔性结构装置,弹簧,伤口覆盖和方法

    公开(公告)号:US09078784B2

    公开(公告)日:2015-07-14

    申请号:US12701333

    申请日:2010-02-05

    IPC分类号: A61F13/00 A61F15/00

    CPC分类号: A61F15/008

    摘要: A flexible structural apparatus which may be used as a wound covering which extends above the wound such that the wound covering does not contact the wound and also protects the wound from contact. The apparatus provides a high degree of flexibility while retaining structural strength and resisting collapse, for example, so as to adequately protect the wound. Various embodiments include parallel beams and connections between beams that alternate in location along the beams to provide flexibility. Some embodiments may be used as springs and may have attachment features, such as holes, which may be located at the end beams, for example.

    摘要翻译: 一种柔性结构设备,其可用作在伤口上方延伸的伤口覆盖物,使得伤口覆盖物不接触伤口并且还保护伤口免受接触。 该设备提供高度的灵活性,同时保持结构强度和抵抗塌陷,例如以充分保护伤口。 各种实施例包括平行光束和沿着光束位置交替的光束之间的连接,以提供灵活性。 一些实施例可以用作弹簧,并且可以具有例如可以位于端部梁处的附接特征,例如孔。

    Stent crimper apparatus with radiation shied
    24.
    发明授权
    Stent crimper apparatus with radiation shied 失效
    带放射线的支架卷边装置

    公开(公告)号:US06309383B1

    公开(公告)日:2001-10-30

    申请号:US09488187

    申请日:2000-01-20

    IPC分类号: A61B1700

    摘要: A stent crimping apparatus for crimping a deformable radioactive stent onto a deployment device which includes a first jaw member defining a shielded first compression surface, and an opposed, second jaw member defining a shielded second compression surface oriented opposite the first compression surface. The first and second compression surfaces are adapted to collectively form an elongated guide bore formed for axial receipt of the deformable stent and the deployment device therein. To protect against exposure to the radioactive stent, a shield assembly is provided defining an opening into a bore therein which is formed and dimensioned for longitudinal receipt of the deformable stent in an uncrimped condition. A shield assembly defines an opening into the bore, and cooperates with the first and second jaw members to substantially prevent radioactive particles emitted by the radioactive stent from passing out of the crimping apparatus. An operating mechanism is operatively coupled to the first and second jaw members for selective movement between a loading condition and a crimping condition. In the loading condition, the uncrimped stent and the deployment device may be inserted through the opening and into the bore. In the crimping condition, the deformable stent is radially compressed onto the deployment device between the first and second compression surfaces.

    摘要翻译: 一种用于将可变形放射性支架卷曲到展开装置上的支架压接装置,所述展开装置包括限定屏蔽的第一压缩表面的第一钳口构件和限定与第一压缩表面相对定向的屏蔽的第二压缩表面的相对的第二钳口构件。 第一和第二压缩表面适于共同地形成用于轴向容纳可变形支架和其中的展开装置的细长导向孔。 为了防止暴露于放射性支架,设置屏蔽组件,其限定到其中的孔中的开口,其中形成并确定尺寸以使未变形状态的可变形支架的纵向接收。 屏蔽组件限定了孔内的开口,并且与第一和第二钳口构件配合,以基本上防止由放射性支架发射的放射性颗粒从压接装置传出。 操作机构可操作地联接到第一和第二钳口构件,用于在负载状态和压接状态之间的选择性运动。 在装载状态下,未卷曲的支架和展开装置可以通过开口插入孔中。 在卷曲状态下,可变形支架在第一和第二压缩表面之间径向压缩到展开装置上。

    Shield assembly with removable inner-tube apparatus for radioactive stents
    25.
    发明授权
    Shield assembly with removable inner-tube apparatus for radioactive stents 失效
    屏蔽组件,带放射性支架的可拆卸内管装置

    公开(公告)号:US06190303B1

    公开(公告)日:2001-02-20

    申请号:US09301442

    申请日:1999-04-28

    IPC分类号: A61N500

    CPC分类号: G21F5/018 A61N5/1002

    摘要: A radiation shield assembly (30) for a radioactive stent (11) mounted onto a deployment portion (20) of a delivery apparatus (12) including a relatively thin, elongated tube member (69) having a wall (70) defining a receiving passage (72) formed and dimensioned for axial receipt of the stent mounted onto the deployment portion therein to substantially prevent direct contact with the stent (11). A removal structure (71) cooperating with the wall (70) of the tube member (69) for longitudinal severing thereof to enable selective removal of the tube member from the delivery apparatus (12) for deployment use thereof.

    摘要翻译: 一种用于放射性支架(11)的辐射屏蔽组件(30),其安装在输送设备(12)的展开部分(20)上,该输送设备(12)包括相对薄的细长管构件(69),所述管构件具有限定接收通道 (72)的形状和尺寸用于轴支承安装在其上的展开部分上的支架,以基本上防止与支架(11)的直接接触。 与所述管构件(69)的壁(70)配合以用于其纵向切断的移除结构(71),以便能够从所述输送装置(12)中选择性地移除所述管构件以用于其部署。