利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

27 条记录 (耗时 0.037 秒)

    Self-sealing vascular access device
    23.
    发明授权
    Self-sealing vascular access device 失效
    自密封血管通路装置

    公开(公告)号：US5728132A

    公开(公告)日：1998-03-17

    申请号：US629022

    申请日：1996-04-08

    申请人： Robert A. Van Tassel ,  David R. Holmes ,  Robert S. Schwartz

    发明人： Robert A. Van Tassel ,  David R. Holmes ,  Robert S. Schwartz

    IPC分类号： A61B17/00 ,  A61B17/34 ,  A61M25/08 ,  A61B17/04

    CPC分类号： A61B17/3417 ,  A61B17/0057 ,  A61B17/00491 ,  A61B17/3498

    摘要： An instrument for achieving rapid hemostasis at the conclusion of a catheterization procedure comprises a device for injecting a fluid hemostatic agent into a puncture wound that is operatively associated with a conventional introducer sheath component of the introducer used to gain access to a blood vessel using the Seldinger technique. The hemostatic agent injection device includes a tubular member that can be concentrically disposed with a tubular introducer sheath so as to be slidable therealong and where the injection device includes a hemostatic agent inlet port at a proximal end thereof and an ejection port at a distal end, the two ports being interconnected by a lumen. In a first embodiment, the hemostatic agent injection device is adapted to coaxially surround the introducer sheath and in an alternate embodiment, the injection device is coaxially disposed within the lumen of the introducer sheath.

    摘要翻译： 用于在导管插入术结束时实现快速止血的仪器包括用于将流体止血剂注射到穿刺伤口中的装置，所述穿刺伤口与用于使用所述Seldinger进入血管的导引器的常规导引器鞘部件可操作地相关联 技术。 止血剂注射装置包括管状构件，该管状构件可以同心地设置有管状导引鞘，以便能够沿着其滑动，并且其中注射装置包括其近端处的止血剂入口和远端的排出口， 两个端口由管腔相互连接。 在第一实施例中，止血剂注射装置适于同轴地包围导引鞘，并且在替代实施例中，注射装置同轴地设置在导引鞘的内腔中。

    Membranes
    25.
    发明授权
    Membranes 失效
    膜

    公开(公告)号：US4920193A

    公开(公告)日：1990-04-24

    申请号：US221434

    申请日：1988-07-19

    申请人： Richard A. Hann ,  David R. Holmes ,  John W. Smith

    发明人： Richard A. Hann ,  David R. Holmes ,  John W. Smith

    IPC分类号： C08J5/18 ,  B01D65/10 ,  B01D67/00 ,  B01D71/68 ,  B01D71/82 ,  C08G65/48 ,  C08J3/09

    CPC分类号： C08J3/095 ,  B01D67/0011 ,  B01D69/02 ,  B01D71/68 ,  C08G65/48 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2323/30 ,  C08J2381/06

    摘要： An asymmetric membrane formed from a sulphonated polyarylethersulphone has a salt rejection of at least 99%. Alternatively, a membrane has a good salt rejection and an acceptable water flux such that the ratio ##EQU1## has the value of at least 0.7. The membranes can be obtained using barium salts of the sulphonated polyarylethersulphone, with the proportion of barium being controlled to be at least 85%, preferably at least 86%, and not more than 91%, preferably not more than 90% of the barium required to react with the sulphonic acid groups on the sulphonated polymer.

    摘要翻译： 由磺化聚芳砜砜形成的非对称膜具有至少99％的耐盐析。 或者，膜具有良好的拒盐性和可接受的水通量，使得比值具有至少0.7的值。 可以使用磺化的聚芳基砜砜的钡盐来获得膜，钡的比例控制在所要求的钡的至少85％，优选至少86％，不超过91％，优选不超过90％ 与磺化聚合物上的磺酸基反应。

    Method for the production of an asymmetric semipermeable membrane from a solution of a sulfonated polyarylethersulfone
    26.
    发明授权
    Method for the production of an asymmetric semipermeable membrane from a solution of a sulfonated polyarylethersulfone 失效
    从磺化聚合物胶体溶液中生产不对称可切割膜的方法

    公开(公告)号：US5112892A

    公开(公告)日：1992-05-12

    申请号：US578294

    申请日：1990-09-06

    申请人： Peter T. Cardew ,  David R. Holmes ,  John W. Smith

    发明人： Peter T. Cardew ,  David R. Holmes ,  John W. Smith

    IPC分类号： C08J5/18 ,  B01D67/00 ,  B01D71/68 ,  B01D71/82 ,  C08J3/09 ,  C08L81/00 ,  C08L81/06

    CPC分类号： C08J3/091 ,  B01D67/0011 ,  B01D67/0013 ,  B01D69/02 ,  B01D71/68 ,  B01D2325/022 ,  C08J2381/06

    摘要： A polymer solution contains a sulphonated polyarylethersulphone in a solvent mixture containing at least three components, where the solvent mixture has a delta-H in the range from 3 to 8.5; a delta-P in the range from 4 to 8 and a delta-D in the range 7.2 to 9.5 and each component of the solvent mixture is a liquid or low melting solid which is a non-solvent or poor solvent for the sulphonated polyarylethersulphone, and at least one of the components satisfies at least one of the conditions:a) said component has a delta-D of less than 8 when the value of delta-P is not more than 3; andb) said component has a delta-H of greater than 3 when the value of delta-P is at least 8.5; andc) said component has a delta-H of less than 8 when it contains at least one hydroxylic group; andd) said component is free of hydroxylic groups and has a delta-P which is greater than 3 and less than 8.5.The solution can be used for the production of membranes suitable for use in reverse osmosis applications.

    摘要翻译： 聚合物溶液在含有至少三种组分的溶剂混合物中含有磺化的聚芳醚砜，其中溶剂混合物的δ-H在3至8.5的范围内; δ-P在4至8的范围内，Δ-D在7.2至9.5的范围内，溶剂混合物的每个组分是液体或低熔点固体，其是用于磺化聚芳基醚砜的非溶剂或不良溶剂， 并且所述组分中的至少一个满足以下条件中的至少一个：a）当Δ-P的值不大于3时，所述组分的δ-D小于8; 和b）当Δ-P的值至少为8.5时，所述组分的Δ-H大于3; 和c）当其含有至少一个羟基时，所述组分的δ-H小于8; 和d）所述组分不含羟基并且具有大于3且小于8.5的δ-P。 该溶液可用于生产适用于反渗透应用的膜。