MULTI-FIBER SHAPE MEMORY DEVICE
    1.
    发明申请
    MULTI-FIBER SHAPE MEMORY DEVICE 审中-公开
    多光纤形状记忆体设备

    公开(公告)号:US20130085518A1

    公开(公告)日:2013-04-04

    申请号:US13516549

    申请日:2010-12-15

    IPC分类号: A61M29/00

    摘要: A shape memory coiling device (5) for occluding a vessel or other vascular target includes a shape memory polymer material. The shape memory material is formed in a formation state as a plurality of coiled members (10) and then constrained in a pre-deployed state as a plurality of elongate members (10) configured for delivery through a delivery device wherein the plurality of elongate members (10) are aligned axially with respect to each other and the delivery device (20). The shape memory material may be formed in an intra-deployed state such that at least one of the plurality of elongate members (10) will anchor the device (5) before filling the vascular target and becoming a coiled member. The shape memory material is formed in a deployed state as a plurality of coiled members (10). In some embodiments, the vascular target is an aneurysm.

    摘要翻译: 用于封闭容器或其它血管靶的形状记忆卷取装置(5)包括形状记忆聚合物材料。 形状记忆材料形成为多个线圈构件(10)的形成状态,然后被约束为预先展开状态,作为构造成通过输送装置输送的多个细长构件(10),其中多个细长构件 (10)相对于彼此和输送装置(20)轴向对准。 形状记忆材料可以形成为处于展开状态,使得多个细长构件(10)中的至少一个在填充血管目标之前锚定装置(5)并变成线圈构件。 形状记忆材料形成为多个卷绕构件(10)处于展开状态。 在一些实施方案中,血管靶是动脉瘤。

    AQUEOUS HUMOR MICRO-BYPASS SHUNTS
    2.
    发明申请
    AQUEOUS HUMOR MICRO-BYPASS SHUNTS 审中-公开
    水疱OR OR。。。。。

    公开(公告)号:US20130267887A1

    公开(公告)日:2013-10-10

    申请号:US13825495

    申请日:2011-09-21

    IPC分类号: A61F9/007 B29C53/02

    CPC分类号: A61F9/00781 B29C53/02

    摘要: A small shunt can be placed within the eye to aid in drainage of aqueous humor from the anterior chamber of the eye to a pocket between the conjunctiva and the sclera to be absorbed, or to secrete through the cornea or the sclera external to the eye for glaucoma or ocular hypertension treatment. This drainage can decrease the pressure of the eye and potentially modify the course of advancing glaucomatous optic neuropathy as it relates to eye pressure. The shunt is formed of a shape memory polymer material and deformed into a smaller form factor to reduce trauma to the eye resulting from the insertion of the shunt through the sclera to the anterior chamber. Once in situ, the shunt deploys in response to body heat or other external stimulus and expands to its original, larger form factor to provide a secure friction fit of the shunt within the scleral tissue and to enlarge the lumen of the shunt to allow for aqueous flow.

    摘要翻译: 可以将小分流器放置在眼睛内以帮助房水从眼前房排出到结膜和巩膜之间的口袋中以被吸收,或通过眼睛外部的角膜或巩膜分泌 青光眼或高眼压症治疗。 这种引流可以降低眼睛的压力,并可能改变与眼压有关的青光眼性视神经病变进展。 分流器由形状记忆聚合物材料形成并变形成更小的形状因子,以减少由于将分流器穿过巩膜插入前房而引起的对眼睛的创伤。 一旦就地,分流器响应于身体热量或其他外部刺激部署,并扩展到其原始的更大的形状因子,以提供分流器在巩膜组织内的可靠的摩擦配合并且扩大分流器的内腔以允许水分 流。

    Echo particle image velocity (EPIV) and echo particle tracking velocimetry (EPTV) system and method
    3.
    发明申请
    Echo particle image velocity (EPIV) and echo particle tracking velocimetry (EPTV) system and method 审中-公开
    回波粒子图像速度(EPIV)和回波粒子跟踪测速(E​​PTV)系统及方法

    公开(公告)号:US20080015440A1

    公开(公告)日:2008-01-17

    申请号:US11777412

    申请日:2007-07-13

    IPC分类号: A61B8/00

    摘要: A system and method for detecting fluid flow. An ultrasound system comprises a signal generator providing ultrasound firing sequences applied to a linear array transducer. The transducer generating ultrasound energy applied to the fluid flow. A pre-processor comprises a digital RF data acquisition component receiving an RF signal from the transducer of back-scattered ultrasound energy and a B-mode image generation component for reconstructing images form the RF data. A post-processor executes particle image velocity (PIV) algorithms for generating velocity vectors indicative of the fluid flow. The sequences may have triangular waveforms.

    摘要翻译: 一种用于检测流体流动的系统和方法。 超声系统包括提供施加到线性阵列换能器的超声发射序列的信号发生器。 产生超声能量的换能器施加到流体流。 预处理器包括从反向散射超声能量的换能器接收RF信号的数字RF数据采集部件和用于从RF数据重建图像的B模式图像生成部件。 后处理器执行用于产生指示流体流动的速度矢量的粒子图像速度(PIV)算法。 序列可以具有三角形波形。

    MEDICAL FABRIC WITH INTEGRATED SHAPE MEMORY POLYMER
    8.
    发明申请
    MEDICAL FABRIC WITH INTEGRATED SHAPE MEMORY POLYMER 审中-公开
    具有整体形状记忆聚合物的医用织物

    公开(公告)号:US20130218178A1

    公开(公告)日:2013-08-22

    申请号:US13821907

    申请日:2011-09-12

    IPC分类号: A61F2/00

    摘要: Formulations of shape memory polymer (SMP) are integrated with several existing clinically available medical fabrics. The SMP portion of a SMP-integrated fabric can be fabricated in varying thicknesses with the minimum thickness determined by the thickness of the underlying fabric and up to almost any thickness. A large variety of patterns may be formed in SMP-integrated fabrics based upon how the shape memory polymer is integrated into the base fabric. Integration of the SMP with the base fabrics does not alter the shape memory functionality of the SMP. The design tools for controlling activation rate for traditional SMP materials thus apply to SMP-integrated fabrics. SMP-integrated fabrics may also be steam sterilized without loss of shape memory functionality. By using multiple formulations of SMP on a single piece of fabric, a large combination of material properties may be provided within a single SMP-integrated fabric device.

    摘要翻译: 形状记忆聚合物(SMP)的制剂与几种现有的临床医用织物相结合。 SMP集成织物的SMP部分可以以不同的厚度制造,最小厚度由下面的织物的厚度确定并且几乎达到任何厚度。 基于形状记忆聚合物如何整合到基底织物中,可以在SMP集成织物中形成各种图案。 SMP与基础结构的集成不会改变SMP的形状记忆功能。 用于控制传统SMP材料激活速率的设计工具因此适用于SMP集成的面料。 SMP集成的织物也可以进行蒸汽灭菌,而不会损失形状记忆功能。 通过在单个织物上使用多种配方的SMP,可以在单个SMP集成织物装置内提供大量材料性质的组合。

    Vascular Occlusion Devices
    9.
    发明申请
    Vascular Occlusion Devices 有权
    血管闭塞装置

    公开(公告)号:US20120046687A1

    公开(公告)日:2012-02-23

    申请号:US13262546

    申请日:2010-04-02

    IPC分类号: A61F2/01

    摘要: Shape memory materials (SMM) are formed as coil-shaped vascular occlusion devices upon deployment. Shape memory polymer (SMP) materials are tailored through formulation for specific mechanical behavior of the coils. Concurrent coil diameter changes enhance the relative change in stiffness along the length of the coil. Interconnecting structures (104a/b) are formed on ends of elongated members (102a) in the pre-deployment shape for multiple coil insertion capability within an introducer. Channels (206) are formed in pre-deployment shape, elongate members (202) that allow access for injection of imaging contrast agent or concurrent placement of instruments. A single SMM occlusive device (300) transforms into multiple, smaller diameter coils (302b) in the deployed state to generate a complex occlusive structure. A SMM occlusive device (400) has a collapsed fabric (404) component attached to and extending along a sidewall during storage and insertion, and then deploys as a coil (402b) to form a single- or multiple-layer occlusive fabric surface within a center of the coil (402b).

    摘要翻译: 形状记忆材料(SMM)在部署时形成为线圈状血管闭塞装置。 形状记忆聚合物(SMP)材料通过配方为线圈的特定机械性能而定制。 并联线圈直径变化增强沿着线圈长度的刚度的相对变化。 互连结构(104a / b)形成在细长构件(102a)的端部中,用于在引导器内用于多个线圈插入能力的预展开形状。 通道(206)以预先展开形状形成,细长构件(202)允许进入成像造影剂的注入或仪器的同时放置。 单个SMM闭塞装置(300)在展开状态下变换成多个较小直径的线圈(302b),以产生复杂的闭塞结构。 SMM闭塞装置(400)具有在储存和插入期间附着并沿侧壁延伸的塌陷织物(404)部件,然后作为线圈(402b)展开以形成单层或多层闭塞织物表面 线圈(402b)的中心。