发明授权
- 专利标题: VASCULAR CLOSURE DEVICES FOR PROVIDING HEMOSTATIC ENHANCEMENT
- 专利标题(中): 用于提供静脉内增强的血管闭合装置
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申请号: EP08772314.4申请日: 2008-07-01
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公开(公告)号: EP2162071B1公开(公告)日: 2017-05-03
- 发明人: YASSINZADEH, Zia , WEITZ, Jeffrey I. , STAFFORD, Alan
- 申请人: Cardiva Medical, Inc
- 申请人地址: 888 W. Maude Ave. Sunnyvale CA 94085 US
- 专利权人: Cardiva Medical, Inc
- 当前专利权人: Cardiva Medical, Inc
- 当前专利权人地址: 888 W. Maude Ave. Sunnyvale CA 94085 US
- 代理机构: Kazi, Ilya
- 优先权: US772718 20070702
- 国际公布: WO2009006482 20090108
- 主分类号: A61B17/03
- IPC分类号: A61B17/03
摘要:
Drug eluting vascular closure devices and methods for closing a blood vessel puncture site disposed at a distal end of a tissue tract are described. The devices and methods rely on a combination of the body's own natural mechanism to achieve hemostasis with chemical and/or biological agents to accelerate the hemostatic process. One method includes the steps of introducing a closure device through the tissue tract and deploying an expansible member at a distal end of the device within the blood vessel to occlude the puncture site. A chemical and/or biological sealing member disposed proximal the expansible member is then displaced so as to expose a chemical and/or biological region or release region of the device. At least one chemical and/or biological agent is thereafter released from the device and into the tissue tract to accelerate the occlusion process in the tract.
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