Bone treatment systems and methods
    51.
    发明申请
    Bone treatment systems and methods 有权
    骨治疗系统和方法

    公开(公告)号:US20080154273A1

    公开(公告)日:2008-06-26

    申请号:US11953800

    申请日:2007-12-10

    IPC分类号: A61B17/58 A61M31/00 A61M37/00

    摘要: The present invention relates in certain embodiments to methods, systems, and devices for treating vertebral compression fractures. In one embodiment, a bone cement injector is advanced into bone and injects a bone cement flow through the injector and a vapor flow from at least one vapor outlet in the injector. In another embodiment, the bone treatment system comprises an elongated member having a flow passageway, a bone fill material source, and a vapor source coupleable to the flow passageway. Still another embodiment describes a vapor injection device having an elongated member with a flow passageway, the elongated member configured for insertion into a bone and for delivering a bone fill material through the flow passageway, and having at least one vapor channel in communication with the flow passageway to deliver a vapor into the flow passageway to heat a bone fill material flow.

    摘要翻译: 本发明在某些实施例中涉及用于治疗椎骨压缩性骨折的方法,系统和装置。 在一个实施例中,骨粘固剂注射器被推进到骨中并且注入穿过注射器的骨水泥流和来自注射器中的至少一个蒸气出口的蒸汽流。 在另一个实施例中,骨治疗系统包括具有流动通道,骨填充材料源和可耦合到流动通道的蒸气源的细长构件。 另一个实施例描述了具有带有流动通道的细长构件的蒸气喷射装置,细长构件构造成用于插入骨骼中并且用于通过流动通道输送骨填充材料,并且具有与流体连通的至少一个蒸汽通道 通道以将蒸气输送到流动通道中以加热骨填充物料流。

    Electrosurgical instrument and method of use

    公开(公告)号:US07083619B2

    公开(公告)日:2006-08-01

    申请号:US10198854

    申请日:2002-07-19

    IPC分类号: A61B18/12

    摘要: An electrosurgical medical device and method for creating thermal welds in engaged tissue. In one embodiment, at least one jaw of the instrument defines a tissue engagement plane carrying a conductive-resistive matrix of a conductively-doped non-conductive elastomer. The engagement surface portions thus can be described as a positive temperature coefficient material that has a unique selected decreased electrical conductance at each selected increased temperature thereof over a targeted treatment range. The conductive-resistive matrix can be engineered to bracket a targeted thermal treatment range, for example about 60° C. to 80° C., at which tissue welding can be accomplished. In one mode of operation, the engagement plane will automatically modulate and spatially localize ohmic heating within the engaged tissue from Rf energy application—across micron-scale portions of the engagement surface.

    Jaw structure for electrosurgical instrument
    54.
    发明授权
    Jaw structure for electrosurgical instrument 有权
    电外科器械的颌骨结构

    公开(公告)号:US06905497B2

    公开(公告)日:2005-06-14

    申请号:US10453086

    申请日:2003-05-31

    IPC分类号: A61B18/14 A61B18/12

    摘要: An electrosurgical medical device for creating thermal welds in engaged tissue that provides general grasping and dissecting functionality. In an exemplary embodiment, at least one jaw of the instrument defines a tissue engagement plane carrying electrosurgical energy delivery means. The jaw assembly, in one mode of operation, can be used for general grasping and dissecting purposes wherein the jaws close in a non-parallel manner so that the distalmost jaw tip only engage tissue with little movement of the actuator lever in the handle of the instrument. In another mode of operation, the jaw assembly closes close in a parallel manner under very high compression to enable tissue welding.

    摘要翻译: 一种用于在接合组织中产生热焊缝的电外科医疗装置,其提供一般的抓握和解剖功能。 在示例性实施例中,器械的至少一个钳口限定了携带电外科能量输送装置的组织接合平面。 钳口组件在一种操作模式中可用于一般的抓取和解剖目的,其中钳口以不平行的方式闭合,使得最远端的钳口尖端仅接合组织,致动器杠杆在手柄中几乎没有移动 仪器。 在另一种操作模式中,钳夹组件在非常高的压缩下以平行的方式闭合以实现组织焊接。

    Electrosurgical systems and techniques for sealing tissue
    55.
    发明授权
    Electrosurgical systems and techniques for sealing tissue 有权
    电外科系统和技术用于密封组织

    公开(公告)号:US06500176B1

    公开(公告)日:2002-12-31

    申请号:US09694233

    申请日:2000-10-23

    IPC分类号: A61B1818

    摘要: An electrosurgical medical device and technique for creating thermal welds in the transected margin of engaged tissue. The working end of the invention carries a bi-polar electrode arrangement that provides a novel type of Rf current flow for tissue welding described as an subfascial-to-fascial (or medial-to-surface) bi-polar approach. The working end of the device carries an openable and closable jaw assembly with paired first and second jaws for engaging tissue. The paired jaws have an axial channel for receiving a sliding (blade) member for transecting the captured tissue. The paired jaws carry electrode surfaces having a common polarity so that Rf current will not flow directly between the jaws which engage the surface or fascial tissue layers. The transecting member, when fully extended after transecting the captured tissue, carries an elongate electrode of an opposing polarity that engages the medial or subfascial layers of the tissue. Thus, bi-polar current is directed to flow from the transecting member electrode that engages medial tissue layers to both jaws that engage opposing surface tissue layers to create effective current densities in the medial tissue layers, even when transecting thick tissue volumes or vessels with thick non-uniform fascial layers.

    摘要翻译: 一种用于在接合组织的横切边缘产生热焊缝的电外科医疗装置和技术。 本发明的工作端携带双极电极装置,其提供用于组织焊接的新型的Rf电流流动,其被描述为子筋 - 筋膜(或内向 - 面)双极方法。 该装置的工作端装有一个可打开和关闭的钳口组件,具有成对的第一和第二钳口,用于接合组织。 成对的夹爪具有轴向通道,用于接收用于横切所捕获的组织的滑动(叶片)构件。 成对的钳口携带具有共同极性的电极表面,使得Rf电流将不会直接流到接合表面或筋膜组织层的钳口之间。 横切构件在横切被捕获的组织之后完全延伸时,携带相对极性的细长电极,其接合组织的内侧或筋膜下层。 因此,双极电流被引导到从接合内侧组织层的横截面部件电极到与接合相对表面组织层的两个钳口的流动,以便在内侧组织层中形成有效的电流密度,即使当横截面厚的组织体积或具有厚的 不均匀的筋膜层。

    Pressure-assisted biopsy needle apparatus and technique
    56.
    发明授权
    Pressure-assisted biopsy needle apparatus and technique 有权
    压力辅助活检针装置及技术

    公开(公告)号:US06485436B1

    公开(公告)日:2002-11-26

    申请号:US09637463

    申请日:2000-08-10

    IPC分类号: A61B500

    摘要: An improved biopsy needle assembly for efficient removal of multiple biopsy cores from a single needle penetration. The needle apparatus comprises an elongate assembly of paired sleeves with an open notch in the wall of the outer sleeve for engaging a tissue volume in the bore of that sleeve. An inner sleeve or blade member with a sharp blade edge is moveable from a retracted position to an extended position to both (i) excise the tissue volume, and (ii) function as valve means to alter the open notch between an open position and a closed position. The invention provides a looped inflow-outflow passageway system for using high-pressure fluid flows to push or expel the excised tissue from the bore in working end where the excised tissue is captured. The looped passageway system is coupled to a remote pressurization source.

    摘要翻译: 一种改进的活检针组件,用于从单针穿透有效地去除多个活检芯。 针装置包括成对的套筒的细长组件,其在外套筒的壁中具有开口的凹口,用于接合该套筒的孔中的组织体积。 具有锋利刀片边缘的内套筒或刀片构件可从缩回位置移动到延伸位置,以便(i)切除组织体积,和(ii)用作阀装置,以改变打开位置和打开位置之间的打开凹口 关闭位置。 本发明提供了一种循环的流入 - 流出通道系统,用于使用高压流体流在被切除的组织被捕获的工作端中从所述孔中推动或排出切除的组织。 环形通道系统联接到远程加压源。

    Bone treatment systems and methods
    59.
    发明授权
    Bone treatment systems and methods 有权
    骨治疗系统和方法

    公开(公告)号:US09066769B2

    公开(公告)日:2015-06-30

    申请号:US12345937

    申请日:2008-12-30

    IPC分类号: A61B17/88 A61B17/00 A61B19/00

    摘要: Systems and methods for treating vertebral compression fractures are discussed. In an embodiment, a method includes mixing bone cement precursors thereby causing a first chemical curing reaction characterized by a first time-viscosity profile, controllably applying energy to the bone cement from an external source to modify the first time-viscosity profile to a second time-viscosity profile, and injecting the cement into bone at a substantially constant viscosity greater than about 1000 Pa·s to greater than about 5000 Pa·s over an extended working time. In another embodiment, a bone cement injector system is provided that includes a first handle component that is detachably coupled to a second sleeve component having a distal end for positioning in bone and a flow channel extending through the first and second components. The system includes first and second thermal energy emitters for delivering energy to bone cement flows in a flow channel portion in the first and second components, respectively.

    摘要翻译: 讨论了治疗椎体压缩骨折的系统和方法。 在一个实施方案中,一种方法包括混合骨水泥前体,从而引起第一化学固化反应,其特征在于第一时间粘度分布,可控地从外部来源向骨粘固剂施加能量以将第一时间粘度分布修改为第二次 - 粘度分布,并且在延长的工作时间内以大于约1000Pa·s至大于约5000Pa·s的基本上恒定的粘度将骨水泥注入骨中。 在另一个实施例中,提供一种骨粘固剂注射器系统,其包括第一手柄部件,该第一手柄部件可拆卸地联接到具有用于定位在骨头中的远端的第二套筒部件和延伸穿过第一和第二部件的流动通道。 该系统包括第一和第二热能发射器,用于分别在第一和第二部件中的流动通道部分中向骨水泥流输送能量。