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13 条记录 (耗时 0.03 秒)

    Method of protecting and sterilizing aluminum surfaces on medical instruments
    2.
    发明授权
    Method of protecting and sterilizing aluminum surfaces on medical instruments 失效
    在医疗器械上保护和消毒铝表面的方法

    公开(公告)号：US5658529A

    公开(公告)日：1997-08-19

    申请号：US614705

    申请日：1996-03-13

    申请人： Leslie A. Feldman ,  Henry Hui

    发明人： Leslie A. Feldman ,  Henry Hui

    IPC分类号： A61L2/20 ,  C25D11/22 ,  C25D11/24 ,  A61L2/08

    CPC分类号： A61L2/20 ,  C25D11/22 ,  C25D11/24

    摘要： A process for color anodizing and sterilizing aluminum surfaces on medical instruments without fading the anodized color comprises the steps of: anodizing an aluminum surface on a medical instrument to form an oxide film; immersing the surface in a salt bath of a coloring metal and electrolytically depositing the coloring metal onto the oxide film; and repeatedly sterilizing the medical instrument and its surface by exposing it to an oxidizing sterilant, whereby the electrolytically deposited coloring metal remains adhered to the surface and the color of the surface is not adversely affected by the repeated exposure to the oxidizing sterilant. Preferably, the sterilant comprises hydrogen peroxide, the coloring metal comprises tin and the surface remains non-cytotoxic after the anodizing, coloring steps and sterilizing steps.

    摘要翻译： 用于在医疗仪器上对铝表面进行彩色阳极氧化和灭菌的方法，而不会使阳极化颜色褪色的步骤包括以下步骤：阳极氧化医疗器械上的铝表面以形成氧化膜; 将表面浸渍在着色金属的盐浴中，并将着色金属电解沉积到氧化物膜上; 并通过将其暴露于氧化性灭菌剂而使医疗器械及其表面反复灭菌，由此电解沉积的着色金属保持粘附到表面，并且表面的颜色不会受到反复暴露于氧化消毒剂的不利影响。 优选地，灭菌剂包含过氧化氢，着色金属包含锡，并且在阳极氧化，着色步骤和灭菌步骤之后表面保持非细胞毒性。

    Endoscope pressure equalization system and method
    3.
    发明授权
    Endoscope pressure equalization system and method 失效
    内镜压力均衡系统及方法

    公开(公告)号：US5807238A

    公开(公告)日：1998-09-15

    申请号：US560247

    申请日：1995-11-21

    申请人： Leslie A. Feldman ,  Henry Hui ,  Reinhard Kowatsch ,  Tsutomu Hayashida ,  Michael Hahs ,  Charles Howlett

    发明人： Leslie A. Feldman ,  Henry Hui ,  Reinhard Kowatsch ,  Tsutomu Hayashida ,  Michael Hahs ,  Charles Howlett

    IPC分类号： A61B1/00 ,  A61B1/12 ,  F16K17/196 ,  F16K17/30 ,  A61B1/30

    CPC分类号： A61B1/00057 ,  A61B1/121 ,  A61B1/125 ,  F16K17/196 ,  F16K17/30

    摘要： A pressure equalization device connects to a port on an endoscope and equalizes the pressure within the endoscope to an environment thereabout. An outlet check valve allows flow out of the port and blocks flow into the port. A filter may be provided for preventing known chemical agents from entering the port. If the agent is hydrogen peroxide, the filter preferably comprises a catalyst, such as copper wool, for decomposing the hydrogen peroxide into water and oxygen. An inlet check valve may also be provided to communicate with the endoscope port and allow flow into the port in response to a downstream pressure gradient exceeding a predetermined value.

    摘要翻译： 压力均衡装置连接到内窥镜上的端口，并将内窥镜内的压力与其周围的环境相平衡。 出口止回阀允许从端口流出并阻止流入端口。 可以提供过滤器以防止已知的化学试剂进入端口。 如果试剂是过氧化氢，则过滤器优选包括用于将过氧化氢分解成水和氧的催化剂，例如铜棉。 还可以设置入口止回阀以与内窥镜端口通信，并且响应于超过预定值的下游压力梯度允许流入端口。

    Endoscope pressure equalization system and method
    4.
    发明授权
    Endoscope pressure equalization system and method 失效
    内镜压力均衡系统及方法

    公开(公告)号：US5634880A

    公开(公告)日：1997-06-03

    申请号：US446377

    申请日：1995-05-22

    申请人： Leslie A. Feldman ,  Henry Hui ,  Reinhard Kowatsch ,  Tsutomu Hayashida ,  Michael Hahs ,  Charles Howlett

    发明人： Leslie A. Feldman ,  Henry Hui ,  Reinhard Kowatsch ,  Tsutomu Hayashida ,  Michael Hahs ,  Charles Howlett

    IPC分类号： A61B1/00 ,  A61B1/12 ,  F16K17/196 ,  F16K17/30 ,  A61B1/012

    CPC分类号： A61B1/00057 ,  A61B1/121 ,  A61B1/125 ,  F16K17/196 ,  F16K17/30

    摘要： A pressure equalization device connects to a port on an endoscope and equalizes the pressure within the endoscope to an environment thereabout. An outlet check valve allows flow out of the port and blocks flow into the port. A filter may be provided for preventing known chemical agents from entering the port. If the agent is hydrogen peroxide, the filter preferably comprises a catalyst, such as copper wool, for decomposing the hydrogen peroxide into water and oxygen. An inlet check valve may also be provided to communicate with the endoscope port and allow flow into the port in response to a downstream pressure gradient exceeding a predetermined value.

    摘要翻译： 压力均衡装置连接到内窥镜上的端口，并将内窥镜内的压力与其周围的环境相平衡。 出口止回阀允许从端口流出并阻止流入端口。 可以提供过滤器以防止已知的化学试剂进入端口。 如果试剂是过氧化氢，则过滤器优选包括用于将过氧化氢分解成水和氧的催化剂，例如铜棉。 还可以设置入口止回阀以与内窥镜端口通信，并且响应于超过预定值的下游压力梯度允许流入端口。

    Biological indicator for sterilization processes with double buffer system
    5.
    发明授权
    Biological indicator for sterilization processes with double buffer system 有权
    双缓冲系统灭菌过程的生物指标

    公开(公告)号：US06436659B1

    公开(公告)日：2002-08-20

    申请号：US09699728

    申请日：2000-10-27

    申请人： Henry K. Hui ,  Leslie A. Feldman ,  Richard A. Gorham

    发明人： Henry K. Hui ,  Leslie A. Feldman ,  Richard A. Gorham

    IPC分类号： C12Q122

    CPC分类号： C12Q1/22 ,  A61L2/28 ,  G01N31/226

    摘要： A method and an apparatus for preventing reversion of the color of an indicator dye in a biological indicator is disclosed. The indicator dye changes color if viable microorganisms are present after sterilization, because acidic byproducts are formed when the microorganisms metabolize the growth medium. It has been found that the dye can change color back to the original color after the completion of the sterilization due to leaching or diffusion of basic impurities into the growth medium. The method and the apparatus employ a dual buffer system with one buffer which operates at high pH to moderate pH fluctuations at the start of the sterilization and a second buffer which operates at low pH to minimize pH fluctuations after the sterilization is complete. Less high pH buffer than low pH buffer is used in order to maximize the speed and sensitivity of the biological indicator.

    摘要翻译： 公开了一种用于防止生物指示剂中指示剂染料的颜色反转的方法和装置。 如果活菌在灭菌后存在，则指示剂染料会变色，因为当微生物代谢生长培养基时会形成酸性副产物。 已经发现，由于碱性杂质浸入或扩散到生长介质中，染料可以在灭菌完成之后将颜色改变回原色。 该方法和装置采用具有一个缓冲液的双缓冲系统，该缓冲液在高pH值下操作以缓解灭菌开始时的pH波动，以及在灭菌完成后使pH波动最小的第二缓冲液。 使用比低pH缓冲液低的pH缓冲液以使生物指示剂的速度和灵敏度最大化。

    Biological indicator for sterilization processes with double buffer system
    9.
    发明授权
    Biological indicator for sterilization processes with double buffer system 有权

    公开(公告)号：US06458554B1

    公开(公告)日：2002-10-01

    申请号：US10090057

    申请日：2002-02-27

    申请人： Henry K. Hui ,  Leslie A. Feldman ,  Richard A. Gorham

    发明人： Henry K. Hui ,  Leslie A. Feldman ,  Richard A. Gorham

    IPC分类号： C12Q122

    CPC分类号： C12Q1/22 ,  A61L2/28 ,  G01N31/226

    摘要： A method and an apparatus for preventing reversion of the color of an indicator dye in a biological indicator is disclosed. The indicator dye changes color if viable microorganisms are present after sterilization, because acidic byproducts are formed when the microorganisms metabolize the growth medium. It has been found that the dye can change color back to the original color after the completion of the sterilization due to leaching or diffusion of basic impurities into the growth medium. The method and the apparatus employ a dual buffer system with one buffer which operates at high pH to moderate pH fluctuations at the start of the sterilization and a second buffer which operates at low pH to minimize pH fluctuations after the sterilization is complete. Less high pH buffer than low pH buffer is used in order to maximize the speed and sensitivity of the biological indicator.