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    • 75. 发明授权
    • Methods for catheter-based renal denervation
    • 基于导管的肾去神经支配方法
    • US08150520B2
    • 2012-04-03
    • US11368949
    • 2006-03-06
    • Denise DemaraisHanson Gifford, IIIMark DeemDouglas SuttonHoward R. LevinMark Gelfand
    • Denise DemaraisHanson Gifford, IIIMark DeemDouglas SuttonHoward R. LevinMark Gelfand
    • A61N1/00A61K9/22
    • A61N1/05A61N1/0551A61N1/327A61N1/40
    • Methods and apparatus are provided for treating end-stage renal disease, e.g., via a pulsed electric field, via a stimulation electric field, via localized drug delivery, via high frequency ultrasound, via thermal techniques, etc. Such neuromodulation may effectuate irreversible electroporation or electrofusion, necrosis and/or inducement of apoptosis, alteration of gene expression, action potential attenuation or blockade, changes in cytokine up-regulation and other conditions in target neural fibers. In some embodiments, neuromodulation is applied to neural fibers that contribute to renal function. In some embodiments, such neuromodulation is performed in a bilateral fashion. Bilateral renal neuromodulation may provide enhanced therapeutic effect in some patients as compared to renal neuromodulation performed unilaterally, i.e., as compared to renal neuromodulation performed on neural tissue innervating a single kidney.
    • 提供了用于通过脉冲电场经由刺激电场,经由局部药物递送,经由高频超声波,经由热技术等来治疗终末期肾脏疾病的方法和装置。这种神经调节可以实现不可逆的电穿孔或 电融合,坏死和/或诱导凋亡,基因表达改变,动作电位衰减或阻断,细胞因子上调和靶神经纤维中的其他条件的变化。 在一些实施方案中,神经调节被应用于有助于肾功能的神经纤维。 在一些实施方案中,这种神经调节以双向方式进行。 与单侧执行的肾神经调节相比,双侧肾神经调节可以在一些患者中提供增强的治疗效果,即与在支配单个肾脏的神经组织上进行的肾神经调节相比。
    • 78. 发明申请
    • METHODS FOR INTRAVASCULARLY-INDUCED NEUROMODULATION
    • 静脉诱导神经修复的方法
    • US20100268307A1
    • 2010-10-21
    • US12827700
    • 2010-06-30
    • Denise DemaraisNicolas ZadnoBenjamin J. ClarkErik Thai
    • Denise DemaraisNicolas ZadnoBenjamin J. ClarkErik Thai
    • A61N1/02
    • A61B18/1492A61B17/12136A61B2018/00083A61B2018/00285A61B2018/00434A61B2018/00613A61M25/0108A61M25/10A61N1/327A61N1/36007A61N1/36121A61N1/36182A61N1/37205A61N1/40
    • Methods and apparatus are provided for intravascularly-induced neuromodulation using a pulsed electric field, e.g., to effectuate irreversible electroporation or electrofusion, necrosis and/or inducement of apoptosis, alteration of gene expression, changes in cytokine upregulation, etc., in target neural fibers. In some embodiments, the intravascular PEF system comprises a catheter having a pair of bipolar electrodes for delivering the PEF, with a first electrode positioned on a first side of an impedance-altering element and a second electrode positioned on an opposing side of the impedance-altering element. A length of the electrodes, as well as a separation distance between the first and second electrodes, may be specified such that, with the impedance-altering element deployed in a manner that locally increases impedance within a patient's vessel, e.g., with the impedance-altering element deployed into contact with the vessel wall at a treatment site within the patient's vasculature, a magnitude of applied voltage delivered across the bipolar electrodes necessary to achieve desired neuromodulation is reduced relative to an intravascular PEF system having similarly spaced electrodes but no (or an undeployed) impedance-altering element. In a preferred embodiment, the impedance-altering element comprises an inflatable balloon configured to locally increase impedance within a patient's vasculature. The methods and apparatus of the present invention may be used to modulate a neural fiber that contributes to renal function.
    • 提供了使用脉冲电场进行血管内诱导的神经调节的方法和装置,例如,在靶神经纤维中实现不可逆的电穿孔或电融合,坏死和/或诱导细胞凋亡,基因表达的改变,细胞因子上调的变化等 。 在一些实施例中,血管内PEF系统包括导管,其具有用于传送PEF的一对双极电极,第一电极位于阻抗改变元件的第一侧上,第二电极位于阻抗变换元件的相对侧上, 改变元素 可以规定电极的长度以及第一和第二电极之间的间隔距离,使得以阻抗变化元件部署的方式,其局部地增加患者血管内的阻抗,例如阻抗 - 改变元件被部署成与病人血管系统中的治疗部位处的血管壁接触,相对于具有类似间隔开的电极而没有(或一个或多个)的血管内PEF系统,减少了实现所需神经调节所需双极电极的施加电压的大小 未部署)阻抗变化元件。 在优选实施例中,阻抗改变元件包括构造成在患者的脉管系统内局部增加阻抗的可充气球囊。 本发明的方法和装置可用于调节有助于肾功能的神经纤维。