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    • 6. 发明申请
    • Expandable Member Formed Of A Fibrous Matrix Having Hydrogel Polymer For Intraluminal Drug Delivery
    • 具有用于腔内药物递送的水凝胶聚合物的纤维基质的可膨胀构件
    • US20100076377A1
    • 2010-03-25
    • US12238026
    • 2008-09-25
    • Kevin J. EhrenreichRichard R. NewhauserRandolf von OepenJohn Stankus
    • Kevin J. EhrenreichRichard R. NewhauserRandolf von OepenJohn Stankus
    • A61M29/00A61M31/00
    • A61M25/1029A61L29/085A61L29/16A61L2300/606A61M25/104A61M2025/1031A61M2025/105A61M2025/1075A61M2025/1088
    • An intraluminal catheter device having an expandable member formed of a matrix of fiber elements, the expandable member including a hydrogel polymer having a therapeutic agent incorporated therein. The hydrogel polymer can be coated on the fiber elements in a co-axial configuration. The fiber elements may also have a second coating including a protective substance surrounding the hydrogel polymer having a therapeutic agent therein. The matrix of fiber elements can be formed by electrospinning. A process of delivering a therapeutic agent to a target site includes providing an intraluminal catheter device having an expandable member formed of a matrix of fiber elements, the expandable member including a hydrogel polymer having a therapeutic agent dispersed therein, and advancing the catheter device at a desired treatment site. Once at the desired treatment site, fluid is introduced into the inflation lumen to expand the expandable member from a first profile to a second profile, and the therapeutic agent is released from the hydrogel polymer and delivered to the desired treatment site.
    • 一种管腔内导管装置,其具有由纤维元件基质形成的可膨胀构件,所述可扩张构件包括其中结合有治疗剂的水凝胶聚合物。 水凝胶聚合物可以以同轴构型涂覆在纤维元件上。 纤维元件还可以具有包含围绕水凝胶聚合物的保护性物质的第二涂层,其中具有治疗剂。 纤维元素的基质可以通过静电纺丝形成。 将治疗剂递送到靶位置的过程包括提供具有由纤维元件基质形成的可扩张构件的管腔内导管装置,所述可扩张构件包括其中分散有治疗剂的水凝胶聚合物,并将导管装置推进到 所需治疗部位。 一旦在期望的治疗部位,将流体引入充气腔,以将可膨胀构件从第一轮廓扩张到第二轮廓,并且将治疗剂从水凝胶聚合物释放并递送到所需的治疗部位。