Method and apparatus for applying energy to biological tissue including the use of tumescent tissue compression
    22.
    发明授权
    Method and apparatus for applying energy to biological tissue including the use of tumescent tissue compression 有权
    用于向生物组织施加能量的方法和装置,包括使用肿胀组织压缩

    公开(公告)号:US07396355B2

    公开(公告)日:2008-07-08

    申请号:US10872646

    申请日:2004-06-21

    IPC分类号: A61B18/18

    摘要: An electrode catheter is introduced into a hollow anatomical structure, such as a vein, and is positioned at a treatment site within the structure. Tumescent fluid is injected into the tissue surrounding the treatment site to produce tumescence of the surrounding tissue which then compresses the vein. The solution may include an anesthetic, and may further include a vasoconstrictive drug that shrinks blood vessels. The tumescent swelling in the surrounding tissue causes the hollow anatomical structure to become compressed, thereby exsanguinating the treatment site. Energy is applied by an electrode catheter in apposition with the vein wall to create a heating effect. The heating effect causes the hollow anatomical structure to become molded and durably assume the compressed dimensions caused by the tumescent technique. The electrode catheter can be moved within the structure so as to apply energy to a large section of the hollow anatomic structure. In a further aspect, the location of the electrodes is determined by impedance monitoring. Also, temperature sensors at the treatment site are averaged to determine the site temperature.

    摘要翻译: 将电极导管引入到诸如静脉的中空解剖结构中,并且位于结构内的治疗部位。 将肿胀流体注射到处理部位周围的组织中,以产生周围组织的肿胀,然后压缩静脉。 溶液可以包括麻醉剂,并且还可以包括收缩血管的血管收缩药物。 周围组织的肿胀肿胀导致中空的解剖结构变得压缩,从而使治疗部位脱垂。 能量通过电极导管与静脉壁一起施加以产生加热效果。 加热效果使得中空的解剖结构变得模制并且持久地承受由肿胀技术引起的压缩尺寸。 电极导管可以在结构内移动,以将能量施加到中空解剖结构的大部分。 在另一方面,通过阻抗监测确定电极的位置。 此外,将处理部位的温度传感器平均以确定现场温度。

    Conductive elastomeric foams by in-situ vapor phase polymerization of pyrroles
    24.
    发明授权
    Conductive elastomeric foams by in-situ vapor phase polymerization of pyrroles 失效
    导电弹性泡沫通过原位气相聚合的吡咯

    公开(公告)号:US06214260B1

    公开(公告)日:2001-04-10

    申请号:US09626952

    申请日:2000-07-27

    IPC分类号: H01B106

    摘要: A conductive elastomeric foam composite is presented, comprising an elastomer foam and polypyrrole, thiophene, or aniline and derivatives thereof. The foam is manufactured by first diffusing an oxidant into the dense polymer phase of a solvent-swollen foam and then diffusing pyrrole or pyrrole derivative vapor or solution into the dried foam, resulting in an in situ chemical oxidative polymerization of pyrrole at the oxidant site. Only about 5 wt % of conductive polymer is required for observing an insulator to conductor transition. The conductivity of the composite foam can be effectively controlled between 10−7 and 10−1 S/cm by varying either the amount of oxidant used and/or the copolymer composition.

    摘要翻译: 提出了一种导电弹性体泡沫复合材料,其包括弹性体泡沫体和聚吡咯,噻吩或苯胺及其衍生物。 通过首先将氧化剂扩散到溶剂溶胀泡沫的致密聚合物相中,然后将吡咯或吡咯衍生物蒸气或溶液扩散到干燥的泡沫中,从而在氧化剂位置进行吡咯的原位化学氧化聚合来制造泡沫体。 只有约5重量%的导电聚合物才能观察绝缘体到导体的转变。 通过改变所使用的氧化剂的量和/或共聚物组成,复合泡沫体的电导率可以有效地控制在10-7和10-1S / cm之间。

    Electrosurgical conductive gas stream equipment
    25.
    发明授权
    Electrosurgical conductive gas stream equipment 失效
    电外科导电气流设备

    公开(公告)号:US4901719A

    公开(公告)日:1990-02-20

    申请号:US224485

    申请日:1988-07-26

    IPC分类号: A61B17/32 A61B18/00 A61B18/14

    摘要: An electrosurgical unit for conducting a predetermined ionizable gas in a jet stream to the tissue at a predetermined flow rate sufficient to clear natural fluids from the tissue and to substantially expose the tissue stroma and for exposing the gas to an electrical radio frequency energy to ionize the gas in conductive pathways in the gas jet stream. The unit includes a nozzle which is releasably connected to a handle for easy manipulation by a surgeon with the nozzle including means for supporting an electrode in an optimal position for initiation of the ionization of the gas. Also, a connecting system is disclosed for connecting the hose on which the handle is mounted to a gas delivery apparatus and supply or electrical energy which permits the hose to rotate while maintaining a positive hermetic seal to prevent the hose from kinking during use by a surgeon.

    摘要翻译: 一种电外科单元,用于以预定的流速将喷射流中的预定可电离气体以预定的流速传导到组织中,该流速足以从组织中清除天然流体并基本上暴露组织基质,并将气体暴露于电射频能量以电离 气体在气体射流中的导电通路中。 该单元包括可释放地连接到手柄的喷嘴,以便外科医生易于操作,喷嘴包括用于将电极支撑在用于引发气体电离的最佳位置的装置。 此外,公开了一种用于将其上安装有手柄的软管连接到气体输送装置的连接系统以及允许软管旋转同时保持正气密密封以防止软管在外科医生使用期间扭结的供应或电能 。

    Electrical connector
    26.
    发明授权
    Electrical connector 失效
    电连接器

    公开(公告)号:US4768969A

    公开(公告)日:1988-09-06

    申请号:US60116

    申请日:1987-06-09

    摘要: An electrical connector achieves improvements in connecting a patient plate to an electrosurgical generator. The connector is preferably of the lever operated type, and electrical contacts are connected on the lever and connected within a passageway internally in a housing of the connector. A tongue portion of the patient plate is inserted in the passageway. Upon closure of the lever, the contacts on the lever extend into the passageway above the lower contacts to mechanically contact and retain the tongue portion between the contacts and to electrically contact the tongue portion by which to conduct current to the patient plate. A recess is formed in the lower marginal area of the passageway and a retaining structure on the lever member extends into the passageway to deform the tongue portion into the indention. The electrical contacts are spacially separated and electrically interconnected to provide an upper and lower electrical contact point for the tongue conductor which is electrically insulated from another spacially separated upper and lower electrical contact point.

    摘要翻译: 电连接器实现将患者板连接到电外科发生器上的改进。 连接器优选地是杠杆操作型,并且电触头连接在杠杆上并且连接在连接器壳体内部的通道内。 患者板的舌部插入通道中。 在杠杆闭合时,杠杆上的触点延伸到下接触件上方的通道中,以将触头部分机械地接触并保持在触头之间,并且电接触舌部,以将电流传导到患者平板。 在通道的下边缘区域中形成凹部,并且杆构件上的保持结构延伸到通道中,以将舌部变形成凹陷。 电触点被空间分离并且电互连,以提供用于舌导体的上和下电接触点,其与另一空间分离的上下电接触点电绝缘。

    Adhesive compositions
    27.
    发明授权
    Adhesive compositions 失效
    粘合剂组合物

    公开(公告)号:US4387174A

    公开(公告)日:1983-06-07

    申请号:US305921

    申请日:1981-09-28

    CPC分类号: C09J7/0214 C09J119/006

    摘要: This invention relates to hot melt adhesive compositions which include an elastomeric co- or terpolymer, about 5 to about 100 parts by weight of a neutralized sulfonated co- or terpolymer per 100 parts by weight of the highly unsaturated hydrocarbon rubber, wherein the neutralized sulfonated elastomeric polymer has about 0.2 to about 5 weight percent of chemically combined sulfur and about 25 to about 200 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, aliphatic dienes and mono and diolefins, cyclic olefins of 5 to 6 carbon atoms and hydrogenated poly cyclics per 100 parts by weight of the neutralized sulfonated co- or terpolymer rubber.

    摘要翻译: 本发明涉及热熔粘合剂组合物,其包括弹性体共聚物或三元共聚物,每100重量份高度不饱和烃橡胶约5至约100重量份中和磺化共聚物或三元共聚物,其中中和的磺化弹性体 聚合物具有约0.2至约5重量百分比的化学结合硫和约25至约200重量份的烃树脂的石油或煤焦油馏出物,脂族二烯和一元和二烯烃,具有5至6个碳原子的环烯烃和 每100重量份中和的磺化共聚物或三元共聚物橡胶的氢化聚合物。

    Strain-Promoted Crosslinking of PEG-based Hydrogels via Copper-Free Cycloaddition
    28.
    发明申请
    Strain-Promoted Crosslinking of PEG-based Hydrogels via Copper-Free Cycloaddition 审中-公开
    通过无铜环加成的PEG基水凝胶的应变促进交联

    公开(公告)号:US20150183988A1

    公开(公告)日:2015-07-02

    申请号:US14418507

    申请日:2013-07-31

    IPC分类号: C08L71/00 C08L89/00

    摘要: The present invention is directed to a covalently crosslinked hydrogel comprising the strain-promoted reaction product of an 8-member cycloalkyne functionalized polyalkylene glycol and a multi-arm glycerol exytholate triazide and methods for making them. Because the precursor materials can be manipulated without causing crosslinking, provided the strain threshold is not reached, these hydrogels permit mechanical control over when (and where) cross linking occurs and are easier to use than prior strain-activated or temperature-activated systems. These novel hydrogels do not require a catalyst to cross link, thus avoiding the biocompatibility problems common to many catalysts. Nor is the crosslinking process affected by the presence of catalysts or other substances, which have interfered with crosslinking in known strain induced hydrogels. Because of their crosslinking reaction kinetics, these novel hydrogels can encapsulate and transport highly sensitive cells and other biological additives and have no known toxic byproducts.

    摘要翻译: 本发明涉及一种共价交联的水凝胶,其包含8-元环炔官能化聚亚烷基二醇和多臂甘油异戊酸三叠氮化物的应变促进反应产物及其制备方法。 因为前体材料可以在不引起交联的情况下被操纵,只要未达到应变阈值,这些水凝胶允许机械控制何时发生交联(并且在何处发生),并且比以前的应变活化或温度激活的系统更容易使用。 这些新颖的水凝胶不需要催化剂交联,从而避免许多催化剂常见的生物相容性问题。 交联过程也不受催化剂或其他物质的存在的影响,这些物质干扰已知应变诱导的水凝胶中的交联。 由于它们的交联反应动力学,这些新颖的水凝胶可以包封和输送高敏感性细胞和其他生物添加剂,并且没有已知的有毒副产物。

    Apparatus for applying energy to biological tissue including the use of tumescent tissue compression
    30.
    发明授权
    Apparatus for applying energy to biological tissue including the use of tumescent tissue compression 失效
    用于向生物组织施加能量的装置,包括使用肿胀组织压缩

    公开(公告)号:US06969388B2

    公开(公告)日:2005-11-29

    申请号:US09841664

    申请日:2001-04-23

    摘要: An electrode catheter is introduced into a hollow anatomical structure, such as a vein, and is positioned at a treatment site within the structure. Tumescent fluid is injected into the tissue surrounding the treatment site to produce tumescence of the surrounding tissue which then compresses the vein. The solution may include an anesthetic, and may further include a vasoconstrictive drug that shrinks blood vessels. The tumescent swelling in the surrounding tissue causes the hollow anatomical structure to become compressed, thereby exsanguinating the treatment site. Energy is applied by an electrode catheter in apposition with the vein wall to create a heating effect. The heating effect causes the hollow anatomical structure to become molded and durably assume the compressed dimensions caused by the tumescent technique. The electrode catheter can be moved within the structure so as to apply energy to a large section of the hollow anatomic structure. In a further aspect, the location of the electrodes is determined by impedance monitoring. Also, temperature sensors at the treatment site are averaged to determine the site temperature.

    摘要翻译: 将电极导管引入到诸如静脉的中空解剖结构中,并且位于结构内的治疗部位。 将肿胀流体注射到处理部位周围的组织中,以产生周围组织的肿胀,然后压缩静脉。 溶液可以包括麻醉剂,并且还可以包括收缩血管的血管收缩药物。 周围组织的肿胀肿胀导致中空的解剖结构变得压缩,从而使治疗部位脱垂。 能量通过电极导管与静脉壁一起施加以产生加热效果。 加热效果使得中空的解剖结构变得模制并且持久地承受由肿胀技术引起的压缩尺寸。 电极导管可以在结构内移动,以将能量施加到中空解剖结构的大部分。 在另一方面,通过阻抗监测确定电极的位置。 此外,将处理部位的温度传感器平均以确定现场温度。