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12 条记录 (耗时 0.017 秒)

    Method and apparatus for limiting revascularization to viable tissue
    1.
    发明授权
    Method and apparatus for limiting revascularization to viable tissue 失效
    用于限制血管再生成活组织的方法和装置

    公开(公告)号：US06733516B2

    公开(公告)日：2004-05-11

    申请号：US09765209

    申请日：2001-01-17

    申请人： Pamela P. Simons ,  Brandon Shuman ,  Lee A. Holzapfel

    发明人： Pamela P. Simons ,  Brandon Shuman ,  Lee A. Holzapfel

    IPC分类号： A61B1818

    CPC分类号： A61B18/1492 ,  A61B2017/00247 ,  A61B2018/00392 ,  A61B2018/00702 ,  A61B2018/00875

    摘要： A method and apparatus for limiting the application of ablation energy to viable myocardial tissue. An ablation energy generator produces a test signal that is applied to the heart muscle. The response of the heart muscle to the test signal is determined and used to analyze the viability of the heart tissue. If the heart muscle is viable, a higher powered ablation pulse may be delivered. If the tissue is not viable, no ablation energy is delivered. In one embodiment of the invention, the test signal is a low voltage, high frequency signal and the impedance of the tissue in response to the test signal is detected to determine tissue viability.

    摘要翻译： 一种用于限制消融能量应用于活的心肌组织的方法和装置。 消融能量发生器产生施加到心脏肌肉的测试信号。 确定心肌对测试信号的反应并用于分析心脏组织的活力。 如果心肌是可行的，则可以递送更高功率的消融脉冲。 如果组织不可行，则不会传递消融能量。 在本发明的一个实施例中，测试信号是低电压，高频信号，并且检测响应于测试信号的组织的阻抗以确定组织存活力。

    Method and apparatus to modify a fluid using a selectively permeable membrane
    3.
    发明授权
    Method and apparatus to modify a fluid using a selectively permeable membrane 有权
    使用选择性渗透膜改性流体的方法和装置

    公开(公告)号：US07455657B2

    公开(公告)日：2008-11-25

    申请号：US09883178

    申请日：2001-06-19

    申请人： Wendy Naimark ,  Susan O'Brien ,  Brandon Shuman

    发明人： Wendy Naimark ,  Susan O'Brien ,  Brandon Shuman

    IPC分类号： A61M37/00 ,  A61M25/00

    CPC分类号： A61M25/003 ,  A61M5/142 ,  A61M5/1582 ,  A61M25/0071 ,  A61M2025/0004 ,  A61M2025/0031 ,  A61M2025/0039 ,  A61M2025/0057 ,  A61M2205/75 ,  B01D61/14 ,  B01D61/18 ,  B01D63/06

    摘要： Method and apparatus to modify a fluid by passing a compound through a selectively permeable membrane is provided. In one embodiment a fluid moving through a vessel is modified prior to its ejection from the vessel. This may be accomplished by urging the fluid into a mixing chamber wherein the mixing chamber is in fluid communication with an exit orifice and a passageway. This passageway may be in communication with a second chamber through a selectively permeable membrane. The fluid may then be altered by passing a compound between the mixing chamber and the second chamber through the passageway and the selectively permeable membrane. A device for modifying a fluid moving through a vessel may contain a first lumen, a second lumen, an exit orifice, and a mixing chamber in communication with the first lumen and the exit orifice.

    摘要翻译： 提供了通过使化合物通过选择性渗透膜来改变流体的方法和装置。 在一个实施例中，移动通过容器的流体在其从容器中排出之前被改变。 这可以通过将流体推入混合室来实现，其中混合室与出口孔和通道流体连通。 该通道可以通过选择性渗透膜与第二室连通。 然后可以通过使混合室和第二室之间的化合物通过通道和选择性渗透膜来改变流体。 用于改变流过血管的流体的装置可以包含与第一腔和出口连通的第一腔，第二腔，出口孔和混合室。

    Device and method of isolating deleterious body tissue located within healthy body tissue
    4.
    发明申请
    Device and method of isolating deleterious body tissue located within healthy body tissue 审中-公开
    分离位于健康人体组织内的有害身体组织的装置和方法

    公开(公告)号：US20050080436A1

    公开(公告)日：2005-04-14

    申请号：US11004686

    申请日：2004-12-02

    申请人： Brandon Shuman

    发明人： Brandon Shuman

    IPC分类号： A61B17/00 ,  A61B17/12 ,  A61B17/122 ,  A61B17/125 ,  A61B17/28 ,  A61B17/32 ,  A61B19/00

    CPC分类号： A61B17/32053 ,  A61B17/12 ,  A61B17/122 ,  A61B17/1227 ,  A61B17/282 ,  A61B17/3211 ,  A61B90/40 ,  A61B2017/00287 ,  A61B2017/1225 ,  A61B2017/320052

    摘要： The invention provides for treating deleterious body tissue located within healthy body tissue by isolating the deleterious tissue from blood, air, and fluid communication. The device includes two structures, each having a corresponding circumferential surface arranged to circumscribe the deleterious body tissue. When the first and second circumferential surfaces are brought together in an aligned relationship with the deleterious body tissue between the structures, the two circumferential surfaces co-act to isolate the deleterious body tissue from communication with the healthy body tissue. The deleterious tissue is resected according to the invention by allowing it to become ischemic and necrotic, or by excision.

    摘要翻译： 本发明提供了通过将有害组织与血液，空气和流体连通分离来治疗位于健康身体组织内的有害身体组织。 该装置包括两个结构，每个结构具有布置成围绕有害身体组织的相应圆周表面。 当第一和第二圆周表面与结构之间的有害身体组织成对准关系时，两个圆周表面共同作用以将有害的身体组织与健康的身体组织连通。 根据本发明，通过使有害组织变得缺血和坏死，或通过切除来切除有害组织。