DEVICES AND METHODS FOR STOMACH PARTITIONING
    44.
    发明申请
    DEVICES AND METHODS FOR STOMACH PARTITIONING 审中-公开
    设备和方法进行分离

    公开(公告)号:US20080294179A1

    公开(公告)日:2008-11-27

    申请号:US12119329

    申请日:2008-05-12

    IPC分类号: A61B17/08

    摘要: A device and method for remodeling or partitioning a body cavity, hollow organ or tissue tract includes graspers operable to engage two or more sections of tissue within a body cavity and to draw the engaged tissue between a first and second members of a tissue remodeling tool. The two or more pinches of tissue are held in complete or partial alignment with one another as staples or other fasteners are driven through the pinches, thus forming a four-layer tissue plication. Over time, adhesions formed between the opposed serosal layers create strong bonds that can facilitate retention of the plication over extended durations, despite the forces imparted on them by stomach movement. A cut or cut-out may be formed in the plication during or separate from the stapling step to promote edge-to-edge healing effects that will enhance tissue knitting/adhesion.

    摘要翻译: 用于重建或分隔体腔,中空器官或组织道的装置和方法包括可操作以接合体腔内的组织的两个或更多个部分并且将所接合的组织在组织重塑工具的第一和第二构件之间拉动的抓握器。 当钉或其它紧固件通过夹持物驱动时,两个或更多个组织的夹持件彼此完全或部分地对准,从而形成四层组织折叠。 随着时间的推移,在相对的浆膜层之间形成的粘连产生强力的粘合,尽管通过胃运动赋予它们的力,也可以有助于在延长的持续时间内保持脓肿。 可以在缝合步骤期间或与缝合步骤分开形成切口或切口,以促进边缘到边缘愈合效果,从而增强组织编织/粘合。

    Apparatus for detecting and treating tumors using localized impedance measurement
    45.
    发明授权
    Apparatus for detecting and treating tumors using localized impedance measurement 有权
    使用局部阻抗测量检测和治疗肿瘤的装置

    公开(公告)号:US07419487B2

    公开(公告)日:2008-09-02

    申请号:US09916214

    申请日:2001-07-25

    IPC分类号: A61B18/18

    摘要: An apparatus for treating tumors comprises an elongated delivery device that includes a lumen and is maneuverable in tissue. An impedance sensor array is deployable from the elongated device and configured to be coupled to at least one of an energy source or a switching device. The impedance array includes a plurality of resilient members, at least one of the plurality being positionable in the elongated device in a compacted state and deployable with curvature into tissue from the elongated device in a deployed state. In the deployed state, the plurality of resilient members defines a sample volume. At least one of the resilient members includes an impedance sensor and at least a portion of the array is configured to sample tissue impedance through a plurality of conductive pathways. An energy delivery device is coupled to one of the array, the at least one resilient member or the elongated device.

    摘要翻译: 用于治疗肿瘤的装置包括细长递送装置,其包括内腔并且可在组织中操纵。 阻抗传感器阵列可从细长装置展开并且被配置为耦合到能量源或开关装置中的至少一个。 所述阻抗阵列包括多个弹性构件,所述多个弹性构件中的至少一个可处于处于压实状态的所述细长装置中,并且在展开状态下可从所述细长装置以曲率展开到组织中。 在展开状态下,多个弹性构件限定样本体积。 弹性构件中的至少一个包括阻抗传感器,并且阵列的至少一部分被配置成通过多个导电路径采样组织阻抗。 能量输送装置联接到阵列中的一个,至少一个弹性构件或细长装置。

    Tissue ablation apparatus and method
    47.
    发明授权
    Tissue ablation apparatus and method 有权
    组织消融装置及方法

    公开(公告)号:US07160296B2

    公开(公告)日:2007-01-09

    申请号:US10142713

    申请日:2002-05-10

    IPC分类号: A61B18/18

    摘要: A tissue-ablation method and apparatus are disclosed. The apparatus includes a plurality of RF ablation electrodes, and a plurality of sensor elements, each movable from retracted to deployed positions in a tissue to be ablated. A control device in the apparatus is operatively connected to the electrodes for supplying an RF power to the electrodes, to produce tissue ablation that advances from individual-electrode ablation regions to fill a combined-electrode ablation volume. The control device is operatively connected to the sensor elements for determining the extent of ablation in the regions of the sensor elements. The supply of RF power to the electrodes can thus be regulated to control the level and extent of tissue ablation throughout the combined-electrode volume. The electrodes are preferably hollow-needle electrodes through which liquid can be infused into the tissue, also under the control of the control unit, to modulate and optimize tissue ablation.

    摘要翻译: 公开了组织消融方法和装置。 该装置包括多个RF消融电极和多个传感器元件,每个传感器元件可从收缩的组织中的缩回到展开位置移动以进行烧蚀。 设备中的控制装置可操作地连接到电极,以向电极提供RF功率,以产生从单个电极消融区域前进以填充组合电极消融体积的组织消融。 控制装置可操作地连接到传感器元件,以确定传感器元件区域中的消融程度。 因此,可以调节对电极的RF功率的供应以控制整个组合电极体积中的组织消融的水平和程度。 电极优选是中空针电极,液体也可以在控制单元的控制下输注到组织中,以调节和优化组织消融。

    Method for detecting and treating tumors using localized impedance measurement
    48.
    发明授权
    Method for detecting and treating tumors using localized impedance measurement 有权
    使用局部阻抗测量法检测和治疗肿瘤的方法

    公开(公告)号:US06962587B2

    公开(公告)日:2005-11-08

    申请号:US09916235

    申请日:2001-07-25

    摘要: An embodiment of the invention provides a method for detecting and treating a tumor using tissue localized volumetric impedance measurement. The method includes providing an impedance measurement apparatus having a plurality of resilient members deployable with curvature and configured to sample tissue impedance through a plurality of conductive pathways. The apparatus is configured to be coupled to at least one of an energy delivery device, a power supply, a switching device or logic resources. The apparatus is then positioned at a selected tissue site and the impedance array deployed to define a sample volume. The impedance array is then utilized to make impedance measurements through a plurality of conductive pathways. Information from the impedance measurements is then utilized to determine a tissue condition of the sample volume. Energy is then delivered from the energy delivery device to ablate or necrose at least a portion of the tumor.

    摘要翻译: 本发明的一个实施方案提供了一种使用组织局部体积阻抗测量来检测和治疗肿瘤的方法。 该方法包括提供阻抗测量装置,其具有可弯曲展开的多个弹性构件,并且被配置为通过多个导电路径采样组织阻抗。 该装置被配置为耦合到能量输送装置,电源,开关装置或逻辑资源中的至少一个。 然后将装置定位在选定的组织部位,并且部署阻抗阵列以限定样品体积。 然后阻抗阵列用于通过多个导电路径进行阻抗测量。 然后利用来自阻抗测量的信息来确定样品体积的组织条件。 然后将能量从能量递送装置递送至至少一部分肿瘤的烧蚀或死皮。

    Step-down catheter
    49.
    发明授权
    Step-down catheter 失效
    降压导管

    公开(公告)号:US5902282A

    公开(公告)日:1999-05-11

    申请号:US774975

    申请日:1996-12-26

    摘要: The invention relates to a catheter and a method of placing a catheter that includes a substantially tubular body portion having an outside diameter no less than the inside diameter of an opening in a catheter introducer adapted to insert a portion of the catheter into a patient's body. The catheter also includes a transition member portion adjacent to a first end of the tubular body portion. The transition member portion has an outside diameter that is less than the outside diameter of the tubular body portion and less than the inside diameter of the opening in the catheter introducer. The invention contemplates that the transition member can be coupled to the end of the tubular body portion, integrally formed with the body portion, or extends from the end of body portion and be removable from a distal end of the body portion. A benefit of the catheter including a transition member portion having an outside diameter that is less than the inside diameter of the opening in the catheter introducer is that it allows a means for inserting a through the introducer catheter which is larger than the inside diameter of the introducer. This provides the benefit of over-the-needle insertion with regard to needle size, but allows for a larger catheter to be placed in the vein by the subsequent removal of the introducer once the transition member portion is placed in the vein.

    摘要翻译: 本发明涉及一种导管和放置导管的方法,该导管包括基本上管状的本体部分,其具有不小于适于将导管的一部分插入患者体内的导管导引器中的开口的内径。 导管还包括与管状主体部分的第一端相邻的过渡构件部分。 过渡构件部分具有小于管状体部分的外径的外径,并且小于导管导引器中的开口的内径。 本发明设想,过渡构件可以联接到与主体部分整体形成的管状主体部分的端部,或者从主体部分的端部延伸并且可以从主体部分的远端移除。 包括具有小于导管导引器中的开口的内径的外径的过渡构件部分的导管的益处在于其允许用于插入通过导引器导管的装置,该装置大于所述导管导管的内径 介绍人 这提供了关于针尺寸的针插入的益处,但是一旦过渡构件部分被放置在静脉中,则允许通过随后移除导引器将更大的导管放置在静脉中。

    Adjustable securing wings
    50.
    发明授权
    Adjustable securing wings 失效
    可调节固定翼

    公开(公告)号:US5814021A

    公开(公告)日:1998-09-29

    申请号:US773975

    申请日:1996-12-26

    IPC分类号: A61M25/00 A61M25/02 A61M5/32

    摘要: The invention relates to an adjustable anchoring device to retain a catheter at a desired location inside a patient. The anchoring device includes a securing member with a body portion having an opening extending through the tubular body portion. The opening has a first dimension adapted to retain the catheter by frictionally engaging the catheter. The body portion of the securing member is dilatable to have an opening with a second dimension such that the securing member can slidably move about the catheter. The invention also relates to an anchoring device with a dilator member portion with a forward end wherein the forward end is adapted to detachably mate with the securing member through a portion of the opening of the securing member and to dilate the tubular body portion of the securing member from having an opening with the first dimension to have an opening with the second dimension.

    摘要翻译: 本发明涉及一种可调整的锚定装置,用于将导管保持在患者体内所需位置。 锚定装置包括具有主体部分的固定构件,该主体部分具有延伸穿过管状主体部分的开口。 开口具有适于通过摩擦地接合导管来保持导管的第一尺寸。 固定构件的主体部分是可扩张的,以具有第二尺寸的开口,使得固定构件可以围绕导管滑动移动。 本发明还涉及一种具有扩张器构件部分的锚定装置,其具有前端,其中前端适于通过固定构件的开口的一部分与固定构件可拆卸地配合,并且扩张固定件的管状本体部分 具有第一维度的开口以具有第二维度的开口。