Multiple lumen catheter having a soft tip

    公开(公告)号:US07029467B2

    公开(公告)日:2006-04-18

    申请号:US10195954

    申请日:2002-07-16

    IPC分类号: A61M25/00 A61M5/00

    摘要: A multiple lumen catheter having a soft, tapered multiple lumen distal tip for insertion into a body vessel. One of the lumens is sized to pass over a guidewire such that the catheter can be inserted into the body vessel using the Seldinger technique. At least one medical implement lumen is used for placement or positioning of a biomedical sensor or other medical implement. For example, at least one optical fiber passing through the medical implement lumen may transmit and receive light at the distal tip for measuring oxygen saturation of the blood. The catheter may have a cylindrical catheter body to which the soft distal tip attaches. The soft tip reduces the possibility of vessel or tissue puncture and abrasion. The tip is constructed of a soft plastic or pliable material that yields easily when force is applied. For example, the tip may be made of a softer material than the catheter body, or if made of the same material, the tip can be configured with thinner walls or a higher air-to-material ratio cross-section. Various geometrical configurations and combinations of materials can be used to decrease the flexible resistance of the tip to an applied load. One particular useful application for the catheter of the present invention is as a central venous catheter equipped with fibers for measuring oximetry. The fibers extend to the distal end of the tip and are preferably secured therein with minimal adhesive so as to limit the stiffness added to the tip. One particular useful construction is to secure the fibers within the medical implement lumen using adhesive only along a length of between about 0.5–3.5 mm.

    Fluidic Coupling For Surgical Hand Piece
    2.
    发明申请
    Fluidic Coupling For Surgical Hand Piece 审中-公开
    流体联轴器手术手

    公开(公告)号:US20080154282A1

    公开(公告)日:2008-06-26

    申请号:US11953329

    申请日:2007-12-10

    IPC分类号: A61F9/00 F16L39/00

    CPC分类号: A61F9/00736 A61B2017/0046

    摘要: A fluidic coupling for a surgical hand piece includes first and second sealing plates, a ring portion, and a receiving portion. The first sealing plate has a first channel for receiving a fluid. The second sealing plate has a second channel for receiving a fluid. The ring portion protrudes from the first sealing plate around a periphery of the first channel. The receiving portion extends from the second sealing plate around a periphery of the second channel. The receiving portion is movable in an axial direction along the second channel and is biased outward from a surface of the second sealing plate. When the ring portion is pressed against the receiving portion, the receiving portion provides a sealing force against the ring portion such that the first and second channels provide a continuous leak-resistant path for a fluid.

    摘要翻译: 用于手术手部件的流体联接器包括第一和第二密封板,环形部分和接收部分。 第一密封板具有用于接收流体的第一通道。 第二密封板具有用于接收流体的第二通道。 环形部分围绕第一通道的周边从第一密封板突出。 接收部分从第二密封板围绕第二通道的周边延伸。 接收部分沿着第二通道沿轴向移动并从第二密封板的表面向外偏压。 当环部分被压靠在接收部分上时,接收部分提供抵靠环部分的密封力,使得第一和第二通道为流体提供连续的防漏通道。

    Central venous catheter having a soft tip and fiber optics
    3.
    发明授权
    Central venous catheter having a soft tip and fiber optics 有权
    中央静脉导管具有软尖端和光纤

    公开(公告)号:US06999809B2

    公开(公告)日:2006-02-14

    申请号:US10196101

    申请日:2002-07-16

    IPC分类号: A61B5/00 A61M25/00 A61N1/04

    摘要: A multiple lumen catheter having a soft, tapered multiple lumen distal tip for insertion into a body vessel. One of the lumens is sized to pass over a guidewire such that the catheter can be inserted into the body vessel using the Seldinger technique. At least one medical implement lumen is used for placement or positioning of a biomedical sensor or other medical implement. For example, at least one optical fiber passing through the medical implement lumen may transmit and receive light at the distal tip for measuring oxygen saturation of the blood. The catheter may have a cylindrical catheter body to which the soft distal tip attaches. The soft tip reduces the possibility of vessel or tissue puncture and abrasion. The tip is constructed of a soft plastic or pliable material that yields easily when force is applied. For example, the tip may be made of a softer material than the catheter body, or if made of the same material, the tip can be configured with thinner walls or a higher air-to-material ratio cross-section. Various geometrical configurations and combinations of materials can be used to decrease the resistance of the tip to an applied load. One particular useful application for the catheter of the present invention is as a central venous catheter equipped with fibers for measuring oximetry. The fibers extend to the distal end of the tip and are preferably secured therein with minimal adhesive so as to limit the stiffness added to the tip. One particular useful construction is to secure the fibers within the medical implement lumen using adhesive only along a length of between about 0.5–3.5 mm.

    摘要翻译: 多腔导管,其具有用于插入体容器中的柔软的锥形多腔远端。 其中一个管腔的大小适于穿过导丝,使得导管可以使用Seldinger技术插入体内容器。 至少一个医疗器械腔用于生物医学传感器或其他医疗器具的放置或定位。 例如,穿过医疗器具内腔的至少一根光纤可以在远侧末端传送和接收光,以测量血液的氧饱和度。 该导管可具有一个圆柱形导管主体,软远端尖端附着在该主体上。 软尖端降低了血管或组织穿刺和磨损的可能性。 尖端由软塑料或柔韧材料构成,当施加力时容易产生。 例如,尖端可以由比导管主体更软的材料制成,或者如果由相同的材料制成,则尖端可以被配置为具有更薄的壁或更高的空气 - 材料比的横截面。 可以使用各种几何构造和材料的组合来降低尖端对施加的负载的电阻。 用于本发明的导管的一个特别有用的应用是配备有用于测量血氧定量的纤维的中心静脉导管。 纤维延伸到尖端的远端,并且优选地以最小的粘合剂固定在其中,以便限制添加到尖端的刚度。 一个特别有用的结构是使用粘合剂将纤维固定在医疗器械腔内,只有约0.5-3.5毫米之间的长度。

    Multiple lumen catheter having a soft tip
    4.
    发明申请
    Multiple lumen catheter having a soft tip 审中-公开
    具有软尖端的多管腔导管

    公开(公告)号:US20060009740A1

    公开(公告)日:2006-01-12

    申请号:US11227695

    申请日:2005-09-14

    IPC分类号: A61B5/00 A61M25/00 A61M5/00

    摘要: A multiple lumen catheter having a soft, tapered multiple lumen distal tip for insertion into a body vessel. One of the lumens is sized to pass over a guidewire such that the catheter can be inserted into the body vessel using the Seldinger technique. At least one medical implement lumen is used for placement or positioning of a biomedical sensor or other medical implement. For example, at least one optical fiber passing through the medical implement lumen may transmit and receive light at the distal tip for measuring oxygen saturation of the blood. The catheter may have a cylindrical catheter body to which the soft distal tip attaches. The soft tip reduces the possibility of vessel or tissue puncture and abrasion. The tip is constructed of a soft plastic or pliable material that yields easily when force is applied. For example, the tip may be made of a softer material than the catheter body, or if made of the same material, the tip can be configured with thinner walls or a higher air-to-material ratio cross-section. Various geometrical configurations and combinations of materials can be used to decrease the flexible resistance of the tip to an applied load. One particular useful application for the catheter of the present invention is as a central venous catheter equipped with fibers for measuring oximetry. The fibers extend to the distal end of the tip and are preferably secured therein with minimal adhesive so as to limit the stiffness added to the tip. One particular useful construction is to secure the fibers within the medical implement lumen using adhesive only along a length of between about 0.5-3.5 mm.

    摘要翻译: 多腔导管,其具有用于插入体容器中的柔软的锥形多腔远端。 其中一个管腔的大小适于穿过导丝,使得导管可以使用Seldinger技术插入体内容器。 至少一个医疗器械腔用于生物医学传感器或其他医疗器具的放置或定位。 例如,穿过医疗器具内腔的至少一根光纤可以在远侧末端传送和接收光,以测量血液的氧饱和度。 该导管可具有一个圆柱形导管主体,软远端尖端附着在该主体上。 软尖端降低了血管或组织穿刺和磨损的可能性。 尖端由软塑料或柔韧材料构成,当施加力时容易产生。 例如,尖端可以由比导管主体更软的材料制成,或者如果由相同的材料制成,则尖端可以被配置为具有更薄的壁或更高的空气 - 材料比的横截面。 可以使用各种几何构型和材料的组合来降低尖端对施加的负载的柔性电阻。 用于本发明的导管的一个特别有用的应用是配备有用于测量血氧定量的纤维的中心静脉导管。 纤维延伸到尖端的远端,并且优选地以最小的粘合剂固定在其中,以便限制添加到尖端的刚度。 一个特别有用的结构是使用粘合剂将纤维固定在医疗器械腔内,只有约0.5-3.5毫米之间的长度。