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    • 2. 发明授权
    • Systems and methods for drug delivery including treating thrombosis by
driving a drug or lytic agent through the thrombus by pressure
    • 用于药物递送的系统和方法,包括通过压力通过血栓驱动药物或溶解剂来治疗血栓形成
    • US5925016A
    • 1999-07-20
    • US534856
    • 1995-09-27
    • Victor I. ChornenkyMichael R. Forman
    • Victor I. ChornenkyMichael R. Forman
    • A61F2/958A61M25/00A61M29/00
    • A61M25/09A61M25/10A61M2025/0047A61M2025/09008A61M2025/09083A61M2025/1052A61M2205/36A61M25/007A61M25/1011
    • Systems and methods for treating thrombosis by driving the drugs or lytic agents through the thrombus by pressure, are disclosed. The system preferably comprises a guide catheter with an occlusion balloon for isolating the region proximal to the thrombus, a guide wire with an occlusion balloon for isolating the region distal to the thrombus and an infusion catheter for delivering drugs or other agents into the region distal to the thrombus under pressure. A lumen of the guide catheter is preferably provided to evacuate material proximal to the thrombus, decreasing the pressure in the proximal to the thrombus. The lumen can be coupled to a thrombus filter to remove thrombolytic material from the drug or lytic agent evacuated from the proximal region. The filtered drug or lytic agent can then be redelivered into the distal region. Recycling of the drug or lytic agent in this manner decreases the costs of the procedure. The systems and methods of the invention can be used to treat other blockages in lumens or vessels in the body or to deliver drugs or other agents to lumens, vessels or cavities within the body, as well.
    • 公开了通过压力驱动药物或溶解剂通过血栓来治疗血栓形成的系统和方法。 该系统优选地包括具有用于隔离接近血栓的区域的阻塞球囊的引导导管,具有用于隔离远离血栓的区域的闭塞气囊的导丝和用于将药物或其它药剂递送到远端的区域的输注导管 血栓在压力下。 优选地,引导导管的内腔用于抽吸靠近血栓的材料,从而降低血栓近端的压力。 管腔可以联接到血栓过滤器以从药物或从近端区域排出的溶解剂中除去血栓溶解物质。 然后将过滤的药物或溶解剂再次送入远端区域。 以这种方式回收药物或溶解剂降低了程序的成本。 本发明的系统和方法可用于治疗身体内腔或血管中的其它阻塞物,或者将药物或其它药物递送至体内的流明,血管或空腔。
    • 5. 发明授权
    • X-ray catheter
    • X光导管
    • US06799075B1
    • 2004-09-28
    • US08701764
    • 1996-08-22
    • Victor I. ChornenkyMichael R. Forman
    • Victor I. ChornenkyMichael R. Forman
    • A61B1818
    • A61N5/1001A61N5/1002A61N2005/1003H01J35/32H01J2201/304H01J2201/306
    • A catheter for emitting radiation is disclosed, comprising a catheter shaft and an x-ray unit attached to the distal end of the catheter shaft. The x-ray unit comprises an anode and a cathode coupled to an insulator to define a vacuum chamber. The cathode is preferably a field emission cathode of graphite or graphite coated with titanium carbide, for example. The anode is preferably tungsten and the insulator is preferably pyrolytic boron nitride. The x-ray unit is preferably coupled to a voltage source through a coaxial cable. The anode is preferably a heavy metal such as tungsten. The cathode may also be a ferroelectric material. The x-ray unit can have a diameter less than about 4 mm and a length less than about 15 mm. Methods of use of the catheter are also disclosed. The catheter of the present invention can be used to irradiate the site of an angioplasty procedure to prevent restenosis. It can also be used to treat other conditions in any vessel, lumen or cavity of the body.
    • 公开了一种用于发射辐射的导管,包括导管轴和附接到导管轴的远端的x射线单元。 x射线单元包括阳极和阴极,其耦合到绝缘体以限定真空室。 阴极优选为例如涂覆有碳化钛的石墨或石墨的场致发射阴极。 阳极优选为钨,绝缘体优选为热解氮化硼。 X射线单元优选地通过同轴电缆耦合到电压源。 阳极优选为重金属,例如钨。 阴极也可以是铁电材料。 x射线单元的直径可以小于约4毫米,长度小于约15毫米。 还公开了导管的使用方法。 本发明的导管可用于照射血管成形术程序的部位以防止再狭窄。 它也可以用于治疗身体的任何血管,腔或腔中的其他病症。
    • 8. 发明申请
    • Method for Treatment of Neoplastic Cells in the Prostate of a Patient
    • 用于治疗患者前列腺中的肿瘤细胞的方法
    • US20100262067A1
    • 2010-10-14
    • US12820955
    • 2010-06-22
    • Victor I. ChornenkyAli Jaafar
    • Victor I. ChornenkyAli Jaafar
    • A61N1/30A61B18/14
    • A61B18/1492A61B18/12A61B18/1206A61B2018/00029A61B2018/00285A61B2018/00434A61B2018/00517A61B2018/00547A61B2018/00613A61B2018/00791A61B2018/00875A61B2018/124A61N1/325
    • An apparatus and a method for treatment of benign prostatic hyperplasia are disclosed. The apparatus includes an applicator piece carrying a set of electrodes shaped and positioned to create a substantial electric field in the volume of hyperplasia and a pulse generator adapted for delivery of electrical pulses above the upper electroporation limit for the neoplastic cells. The amplitude, duration and number of the electrical pulses are generally selected to cause necrosis of a significant fraction of the volume of benign prostatic hyperplasia. The apparatus may include a high frequency system for heating the prostatic tissue and a cooling system for cooling the urethra. The combined action of heating and cooling may increase the temperature of the prostate cells to 45 degrees C. to 55 degrees C., while keeping the urinary tract at a temperature 15 degrees C. to 20 degrees C. This temperature distribution can increase the selectivity of the treatment by increasing susceptibility of the neoplastic cells to the electroporation treatment and decreasing it for the normal urethral tissues.
    • 公开了一种用于治疗良性前列腺增生的装置和方法。 该装置包括一个施加器部件,其承载一组电极,其形状和位置以在增生体积中产生实质电场,以及脉冲发生器,适于将电脉冲传送到肿瘤细胞的上部电穿孔极限以上。 通常选择电脉冲的幅度,持续时间和数量以使良性前列腺增生体积的显着部分坏死。 该装置可以包括用于加热前列腺组织的高频系统和用于冷却尿道的冷却系统。 加热和冷却的联合作用可将前列腺细胞的温度升高至45摄氏度至55摄氏度,同时将尿道保持在15摄氏度至20摄氏度的温度。该温度分布可提高选择性 通过增加肿瘤细胞对电穿孔治疗的敏感性并将其降低为正常的尿道组织来治疗。