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    • 44. 发明授权
    • Everted filter device
    • 过滤器
    • US07621870B2
    • 2009-11-24
    • US11208497
    • 2005-08-22
    • Marwane BerradaRichard KusleikaKent Anderson
    • Marwane BerradaRichard KusleikaKent Anderson
    • A61M29/00
    • A61F2/013A61F2002/018A61F2230/0006A61F2230/0069A61F2230/008
    • Everting filter devices and methods for using the devices, including using the devices as intra-vascular filters to filter thrombus, emboli, and plaque fragments from blood vessels. The filter devices include a filter body nominally tubular in shape and having a large proximal opening. The filter body can extend from a proximal first end region distally over the non-everted exterior surface of the filter, further extending distally to a distal-most region, then converging inwardly and extending proximally toward the filter second end region, forming a distal everted cavity. The degree of eversion of the filter can be controlled by varying the distance between the filter first end region near the proximal opening and the closed second end region. Bringing the filter first and second end regions closer together can bring filter material previously on the non-everted filter exterior to occupy the distal-most region. The everting process can also bring filter material previously in the distal-most position further into the distal everted cavity. The filter devices can be used to remove filtrate from body vessels, with the filtrate eventually occluding the distal-most region. The filter can then be further everted, bringing fresh, unoccluded filter material into place to provide additional filter capacity. Some everting filters have the capability of switching between occluding and filtering modes of operation, thereby allowing a treating physician to postpone the decision to use filtering or occluding devices until well after insertion of the device into the patient's body.
    • 永久过滤装置和使用装置的方法,包括使用装置作为血管内过滤器来从血管中过滤血栓,栓塞和斑块碎片。 过滤装置包括标称管状的过滤器体,并具有大的近端开口。 过滤器主体可以从近端第一端部区域远离过滤器的非转角外表面延伸,并进一步向远端延伸到最远侧区域,然后向内收敛并向近端朝向过滤器第二端部区域延伸,形成远端 腔。 可以通过改变近侧开口附近的过滤器第一端部区域与闭合的第二端部区域之间的距离来控制过滤器的外翻度。 使过滤器第一和第二端部区域更靠近在一起可以将过滤材料预先放置在非转角过滤器外部以占据最远侧区域。 过渡过程还可以将过滤材料先前位于最远端位置进一步进入远端远端腔。 过滤装置可用于从体内血液中除去滤液,滤液最终封闭最远的区域。 然后过滤器可以进一步旋转,将新鲜的,未被排除的过滤材料带入到位以提供额外的过滤能力。 一些过渡过滤器具有在闭塞和过滤操作模式之间切换的能力,从而允许治疗医师推迟使用过滤或闭塞装置的决定,直到将装置插入患者体内。
    • 48. 发明申请
    • Error correction coding utilizing numerical base conversion for modulation coding
    • 利用数字转换进行调制编码的纠错编码
    • US20050076285A1
    • 2005-04-07
    • US10184758
    • 2002-06-27
    • Gregory SilvusKent Anderson
    • Gregory SilvusKent Anderson
    • G11B20/14G11B20/18H03M5/14H03M13/15H03M13/00G11C29/00
    • G11B20/1803G11B20/1426G11B2020/1457H03M5/145H03M13/1515
    • A method of encoding data includes representing the data as number(s) in a first base. The method further includes converting the number(s) into a number(s) in a second base. The resultant number in the second base can be viewed as data suitable for encoding using an ECC algorithm. After being ECC encoded, the data may be further modulation encoded. Modulation encoding may include transforming each symbol to a value that constrains run lengths of a binary value (e.g., zero). A decoding method and system checks a received data block for erroneous symbols, maps each received, encoded symbol to an associated ECC-encoded transform pair. The ECC encoded data may be decoded and corrected using the ECC and the locations of identified erroneous symbols. Finally, the corrected data sequence is converted from the second base back to the first base, from which the original data is retrieved.
    • 一种编码数据的方法包括将数据表示为第一基数中的数字。 该方法还包括将数字转换为第二基数中的数字。 第二基数中的结果数可被视为适合于使用ECC算法进行编码的数据。 在被ECC编码之后,数据可以被进一步调制编码。 调制编码可以包括将每个符号变换为约束二进制值(例如,零)的游程长度的值。 解码方法和系统检查接收到的错误符号的数据块,将每个接收到的编码符号映射到相关联的ECC编码变换对。 可以使用ECC和所识别的错误符号的位置对ECC编码数据进行解码和校正。 最后,将校正后的数据序列从第二基底转换回第一个基底,从中恢复原始数据。