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    • 2. 发明申请
    • APPARATUS FOR SUPPLYING RADIOACTIVE GAS TO A DELIVERY DEVICE
    • 将放射性气体供应给送货装置的装置
    • WO9933515A3
    • 1999-09-16
    • PCT/US9825129
    • 1998-12-01
    • COOK INCMED INST INCAPPLE MARC GBATES BRIAN LDEFORD JOHN AFEARNOT NEAL EPURDY JAMES D
    • APPLE MARC GBATES BRIAN LDEFORD JOHN AFEARNOT NEAL EPURDY JAMES D
    • A61M36/04A61F2/958A61M36/12A61N5/10A61M36/06
    • A61M25/10182A61M25/10185A61N5/1002A61N2005/1021
    • Disclosed is a catheter apparatus filled with a radiation carrier material such as an inert radioactive gas for the treatment of restenosis after angioplasty, and malignancies. The inflated catheter includes a single unit or alternatively, a plurality of discrete chambers for transporting the radioactive carrier material and through which, blood may continue to flow during treatment with the prescribed radiation. When the radioactive carrier is a gas such as Xenon 133, an injection apparatus (1400) may be used that permits use of a standard radioactive gas source vial (1401) that may be loaded into the radioactive source vial enclosure or chamber (1403). The means for enclosing the vial (1404) may also serve as an urging mechanism (1442) to urge the source vial (1401) toward one or more piercing cannulae (1406, 1454) which permit delivery of the radioactive gas to the catheter. In one series of embodiments, the radioactive gas is withdrawn through a selector means (1409) such as a multiple position valve into a gas-tight variable volume chamber (1411) such as a syringe which then is deployed to deliver the gas into the catheter. Following treatment, the gas is withdrawn into the syringe and returned to the source vial (1401). In another series of embodiments a syringe filled with a liquid is used to displace the gas either directly into the delivery catheter (1422), or into a second syringe which injects the gas to the delivery catheter (1422).
    • 公开了一种填充有诸如惰性放射性气体的辐射载体材料用于治疗血管成形术后的再狭窄的导管装置和恶性肿瘤。 膨胀的导管包括单个单元或者可替换地,用于运输放射性载体材料的多个离散室,并且血液可以在用规定的辐射治疗期间继续流动。 当放射性载体是诸如氙133的气体时,可以使用注射装置(1400),其允许使用可装载到放射源小瓶外壳或室(1403)中的标准放射性气体源小瓶(1401)。 用于封闭小瓶(1404)的装置还可以用作推动机构(1442),以将源小瓶(1401)推向一个或多个允许将放射性气体输送到导管的刺穿套管(1406,1454)。 在一系列实施例中,放射性气体通过诸如多位置阀的选择器装置(1409)被抽出到诸如注射器的气密可变容积腔室(1411)中,然后将其放置以将气体输送到导管 。 在处理之后,将气体取出到注射器中并返回到源小瓶(1401)。 在另一系列实施例中,使用填充有液体的注射器将气体直接置换到输送导管(1422)中,或者进入将气体注射到输送导管(1422)的第二注射器中。
    • 9. 发明申请
    • THERMO-CHEMICAL MEDICAL DEVICE FOR MANIPULATION OF TISSUE
    • 用于操作组织的热化学医疗装置
    • WO2011109288A1
    • 2011-09-09
    • PCT/US2011/026460
    • 2011-02-28
    • COOK MEDICAL TECHNOLOGIES, LLCBATES, Brian L.MELSHEIMER, Jeffry S.
    • BATES, Brian L.MELSHEIMER, Jeffry S.
    • A61B18/06A61B18/00
    • A61B18/06A61B2018/00023
    • The present invention provides a medical device for manipulation of tissue of a patient. The medical device comprises a shaft having a proximal section extending to a distal section that has a closed distal end portion. The shaft has a plurality of lumens formed therein including a first lumen and a second lumen. The first lumen is for distally advancing a first reactant through the proximal section. The second lumen is for distally advancing a second reactant through the proximal section. Positioned longitudinally within the shaft and distally from the first and second lumens is a mixing element. The mixing element is in fluid communication with the first and second lumens. The mixing element has a series of baffles for mixing the first and second reactants together producing a reaction product to heat the closed distal end portion of the shaft for manipulation of the tissue.
    • 本发明提供了一种用于操纵患者组织的医疗装置。 医疗装置包括轴,该轴具有延伸到具有封闭的远端部分的远侧部分的近端部分。 轴具有形成在其中的多个腔,其包括第一腔和第二腔。 第一管腔用于通过近端部分远端推进第一反应物。 第二腔用于通过近端部分远端推进第二反应物。 一个混合元件纵向定位在轴内并远离第一和第二管腔。 混合元件与第一和第二内腔流体连通。 混合元件具有一系列用于将第一和第二反应物混合在一起的挡板,产生反应产物以加热用于组织的操作的轴的封闭的远端部分。