Implantable glucose sensor
    1.
    发明授权
    Implantable glucose sensor 失效
    植入式葡萄糖传感器

    公开(公告)号:US5165407A

    公开(公告)日:1992-11-24

    申请号:US682560

    申请日:1991-04-09

    摘要: Implantable enzymatic sensors (25, 43, 44) for biochemicals such as glucose are provided having an ideal size and geometry for optional long term implantation and linear responses over the concentration ranges of interest. The sensors (25, 43, 44) include an elongated body (10, 26, 46) supporting an indicating electrode section having an appropriate enzyme immobilized thereon to present an enzymatic indicating surface (21, 33, 54). A permeable synthetic polymer membrane (24, 42, 56) is applied over the sensor body (10, 26, 46) to protect the enzyme and regulate diffusion of analyte therethrough, to ensure linearity of sensor response. The sensors (25, 43) are of flexible design and can be implanted using a catheter. Alternately, the sensor (44) includes an internal indicating electrode body (46) housed within an apertured, hollow needle (48). A holder (66) affixed to the needle (48) allows for easy manipulation and implantation of the sensor (44).

    摘要翻译: 提供了用于生物化学品如葡萄糖的可植入酶传感器(25,43,44),其具有理想的尺寸和几何尺寸,用于在所关注的浓度范围内进行可选的长期植入和线性响应。 传感器(25,43,44)包括支撑指示电极部分的细长体(10,26,46),所述指示电极部分具有固定在其上的合适的酶以呈现酶指示表面(21,33,54)。 将可渗透的合成聚合物膜(24,42,56)施加在传感器主体(10,26,46)上以保护酶并调节分析物通过其的扩散,以确保传感器响应的线性。 传感器(25,43)具有柔性设计,并且可以使用导管植入。 或者,传感器(44)包括容纳在有孔的空心针(48)内的内部指示电极体(46)。 固定在针(48)上的支架(66)可以方便地操作和植入传感器(44)。

    Microwave-assisted extraction of polysaccharide from Artemisia sphaerocephala
    2.
    发明授权
    Microwave-assisted extraction of polysaccharide from Artemisia sphaerocephala 失效
    微波辅助从艾蒿提取多糖

    公开(公告)号:US08110677B2

    公开(公告)日:2012-02-07

    申请号:US12391587

    申请日:2009-02-24

    IPC分类号: C07H1/08 C07H1/06 C08B37/00

    CPC分类号: C08B37/0003 C08B37/006

    摘要: This invention relates to a method of extracting crude polysaccharide by microwave-assisted from Artemisia sphaerocephala seed de-oiling dregs. In particular, the invention comprising: microwave-assisted extraction, enzymatic hydrolysis, dialysis et. al. It provides a technique whereby the polysaccharide can be extracted effectively, in a relatively short period of time (20-30 min) with respect to conventional extraction methods and allows for an enhanced extraction yield (more than 30%). Furthermore, the invention also allows for the extraction of material with less solvent consumption, good reproducibility, excellent solubility, energy conservation, environmental protection, and showed great potential for efficient sample preparation and large-scale industrial application in the near future. With great resource advantage of Artemisia sphaerocephala in China, the invention has bright perspectives in promoting local economic development.

    摘要翻译: 本发明涉及一种通过从青蒿种子脱油渣微波辅助提取粗多糖的方法。 特别地,本发明包括:微波辅助提取,酶水解,透析等。 al。 它提供了一种技术,其可以在相对于常规提取方法的相对短的时间(20-30分钟)内有效提取多糖,并且可以提高提取产率(大于30%)。 此外,本发明还可以在溶剂消耗少,重复性好,溶解度优异,节能环保的情况下提取材料,并且在不久的将来可以显示出高效的样品制备和大规模工业应用的巨大潜力。 中国蒿属资源优势丰富,发明了促进地方经济发展的前景广阔。

    Blood contacting sensor
    3.
    发明授权
    Blood contacting sensor 有权
    血液接触传感器

    公开(公告)号:US07468033B2

    公开(公告)日:2008-12-23

    申请号:US10935954

    申请日:2004-09-08

    IPC分类号: A61B5/00 A61M37/00

    摘要: The invention provides methods and apparatus for detecting an analyte in blood. The apparatus is particularly suited for bringing a sensor into direct contact with blood in vivo. The apparatus comprises a sensor that detects the presence of an analyte and an assembly means. The assembly means has a sensor end, wherein the sensor end of the assembly means is affixed to the sensor, and the assembly means is adapted for coupling with a venous flow device. By coupling with a venous flow device, the assembly means brings the sensor into direct contact with blood flowing through the venous flow device. Examples of venous flow devices that bring the sensor into direct contact with the blood of a subject include, but are not limited to, intravenous catheters and external blood loops, such as are used in extra corporeal membrane oxygenation or hemodialysis.

    摘要翻译: 本发明提供了用于检测血液中分析物的方法和装置。 该装置特别适于使传感器在体内与血液直接接触。 该装置包括检测分析物和组装装置的存在的传感器。 组装装置具有传感器端,其中组装装置的传感器端固定到传感器,并且组装装置适于与静脉流装置联接。 通过与静脉流动装置联接,组装装置使传感器与流过静脉流装置的血液直接接触。 将传感器与受试者的血液直接接触的静脉流动装置的实例包括但不限于静脉内导管和外部血液回路,例如用于额外的体外膜氧合或血液透析。

    Method and apparatus for enhancing the integrity of an implantable sensor device
    4.
    发明授权
    Method and apparatus for enhancing the integrity of an implantable sensor device 有权
    用于增强可植入传感器装置完整性的方法和装置

    公开(公告)号:US07162289B2

    公开(公告)日:2007-01-09

    申请号:US10335574

    申请日:2002-12-31

    摘要: A method and apparatus for enhancing the integrity of an implantable sensor. Voids formed between an outer tubing and a sensor substrate or spacing element may be back-filled with a curable, implantable material, minimizing the extent to which unwanted fluids diffuse within the sensor. An enzyme or protein matrix pellet below the sensor window may be pre-treated with a reducing agent to enhance its bond stability, and to reduce undesired swelling that may cause the sensor window to detach or leak. The bonding between the enzyme pellet and a hydrogel layer may be reinforced by application of an intervening bonding layer of a protein material, such as human serum albumin (HSA). The size of the window may be minimized by minimizing the size of an underlying electrode, providing reduced flux and lengthening sensor. A coating may be deposited on the surface of the sensor leads, providing stiffening and lubrication.

    摘要翻译: 一种用于增强可植入传感器的完整性的方法和装置。 形成在外管和传感器基底或间隔元件之间的空隙可以用可固化的可植入材料反填充,从而最小化不希望的流体在传感器内扩散的程度。 传感器窗口下面的酶或蛋白质基质颗粒可以用还原剂进行预处理,以增强其粘合稳定性,并减少可能导致传感器窗口分离或泄漏的不期望的膨胀。 可以通过使用诸如人血清白蛋白(HSA)的蛋白质材料的介入粘合层来增强酶颗粒与水凝胶层之间的结合。 通过最小化底层电极的尺寸,提供减小的通量和延长传感器,可以使窗口的尺寸最小化。 涂层可沉积在传感器引线的表面上,提供加强和润滑。

    System and method for sensor recalibration
    5.
    发明申请
    System and method for sensor recalibration 有权
    传感器重新校准的系统和方法

    公开(公告)号:US20050143636A1

    公开(公告)日:2005-06-30

    申请号:US10751327

    申请日:2003-12-30

    摘要: A system and method for calibrating a sensor. The method may include, without limitation, compiling an array of data relating to the sensor; adjusting a sensor parameter a first time based on data in the array; adjusting a curve representing the sensor output based on data in the array; and adjusting the sensor parameter a second time based on data in the array. The sensor may be an in vivo glucose sensor and the sensor parameter adjusted may be a current. The array may include historical as well as recent data, such as, for example, blood glucose readings and sensor electrode readings.

    摘要翻译: 一种用于校准传感器的系统和方法。 该方法可以包括但不限于编译与传感器相关的数据阵列; 基于阵列中的数据首次调整传感器参数; 基于阵列中的数据调整表示传感器输出的曲线; 并且基于阵列中的数据再次调整传感器参数。 传感器可以是体内葡萄糖传感器,并且调节的传感器参数可以是电流。 阵列可以包括历史以及近来的数据,例如血糖读数和传感器电极读数。

    System and method for sensor recalibration
    7.
    发明授权
    System and method for sensor recalibration 有权
    传感器重新校准的系统和方法

    公开(公告)号:US08777852B2

    公开(公告)日:2014-07-15

    申请号:US11843601

    申请日:2007-08-22

    IPC分类号: A61B5/00

    摘要: An implantable sensing system that includes a sensor for sensing a biological parameter, a processor connected to the sensor for processing the parameter and a drug delivery unit connected to the processor for responding to the processor based on the parameter. The processor is programmed to adjust an output of the sensor by compiling an array of data relating to the sensor, adjusting a sensor parameter a first time based on data in the array, adjusting a curve representing the sensor output based on data in the array and adjusting the sensor parameter a second time based on data in the array.

    摘要翻译: 一种可植入感测系统,其包括用于感测生物参数的传感器,连接到所述传感器以用于处理所述参数的处理器以及连接到所述处理器的药物输送单元,以基于所述参数响应所述处理器。 处理器被编程为通过编译与传感器有关的数据阵列来调节传感器的输出,基于阵列中的数据首次调整传感器参数,基于阵列中的数据调整表示传感器输出的曲线, 基于阵列中的数据再次调整传感器参数。

    SENSING APPARATUS AND PROCESS
    8.
    发明申请
    SENSING APPARATUS AND PROCESS 审中-公开
    感应装置和工艺

    公开(公告)号:US20110203923A1

    公开(公告)日:2011-08-25

    申请号:US12862690

    申请日:2010-08-24

    IPC分类号: G01N27/30 H01R43/16

    摘要: A sensing apparatus with a connector, a sensor lead and a sensor module with a spacer placed over electrodes that have been deposited on a substrate. The spacer may have a space for receiving an enzyme. End portions of the sensor module may be encapsulated, such as with molded beads. A sensor lead may attach to the sensor module and may have an outer tubing that passes over the module and attaches to the beads at the end of the sensor module. The sensor lead may also attach to the connector such that the sensing apparatus may be electrically coupled to a pump, electronics or other devices. The sensing apparatus may be implanted into a vein or artery.

    摘要翻译: 具有连接器,传感器引线和传感器模块的感测装置,其具有放置在已经沉积在基板上的电极上的隔离物。 间隔物可以具有用于接受酶的空间。 传感器模块的端部可以被封装,例如用模制的珠子。 传感器引线可以附接到传感器模块,并且可以具有穿过模块并且附接到传感器模块的端部处的珠的外管。 传感器引线还可以附接到连接器,使得感测装置可以电耦合到泵,电子设备或其他装置。 感测装置可以植入静脉或动脉。

    Catheter-Free Implantable Needle Biosensor
    9.
    发明申请
    Catheter-Free Implantable Needle Biosensor 审中-公开
    无导管植入针生物传感器

    公开(公告)号:US20110144466A1

    公开(公告)日:2011-06-16

    申请号:US13032500

    申请日:2011-02-22

    申请人: Yanan Zhang

    发明人: Yanan Zhang

    IPC分类号: A61B5/05

    摘要: Electrochemical biosensors consisting of two or more needle-shaped electrodes for monitoring of molecules such as glucose in the subcutaneous tissue are provided. The two electrodes are parallel to each other, and are fixed perpendicularly to the planar side of a sensor base which provides skin fixation and electric connection. The needle electrodes are made of rigid conducting materials, capable of inserting into the skin without the need of catheters. One electrode is the sensing electrode and the other, the reference electrode. A compound sensing membrane is attached onto the sensing electrode surface to detect analyzed molecules.

    摘要翻译: 提供了由用于监测皮下组织中诸如葡萄糖之类的分子的两个或多个针状电极组成的电化学生物传感器。 两个电极彼此平行,并且垂直于传感器基座的平面侧固定,该传感器基座提供皮肤固定和电连接。 针电极由刚性导电材料制成,能够插入皮肤而不需要导管。 一个电极是感应电极,另一个是参比电极。 复合感测膜附着在感测电极表面上以检测分析的分子。

    Method and apparatus for enhancing the integrity of an implantable sensor device
    10.
    发明授权
    Method and apparatus for enhancing the integrity of an implantable sensor device 有权
    用于增强可植入传感器装置完整性的方法和装置

    公开(公告)号:US07912525B2

    公开(公告)日:2011-03-22

    申请号:US11606837

    申请日:2006-11-30

    IPC分类号: A61B5/00 A61B5/05

    摘要: A method and apparatus for enhancing the integrity of an implantable sensor. Voids formed between an outer tubing and a sensor substrate or spacing element may be back-filled with a curable, implantable material, minimizing the extent to which unwanted fluids diffuse within the sensor. An enzyme or protein matrix pellet below the sensor window may be pre-treated with a reducing agent to enhance its bond stability, and to reduce undesired swelling that may cause the sensor window to detach or leak. The bonding between the enzyme pellet and a hydrogel layer may be reinforced by application of an intervening bonding layer of a protein material, such as human serum albumin (HSA). The size of the window may be minimized by minimizing the size of an underlying electrode, providing reduced flux and lengthening sensor. A coating may be deposited on the surface of the sensor leads, providing stiffening and lubrication.

    摘要翻译: 一种用于增强可植入传感器的完整性的方法和装置。 形成在外管和传感器基底或间隔元件之间的空隙可以用可固化的可植入材料反填充,从而最小化不希望的流体在传感器内扩散的程度。 传感器窗口下面的酶或蛋白质基质颗粒可以用还原剂进行预处理,以增强其粘合稳定性,并减少可能导致传感器窗口分离或泄漏的不期望的膨胀。 可以通过使用诸如人血清白蛋白(HSA)的蛋白质材料的介入粘合层来增强酶颗粒与水凝胶层之间的结合。 通过最小化底层电极的尺寸,提供减小的通量和延长传感器,可以使窗口的尺寸最小化。 涂层可沉积在传感器引线的表面上,提供加强和润滑。