Disposable Pipette Tip
    11.
    发明申请

    公开(公告)号:US20100034706A1

    公开(公告)日:2010-02-11

    申请号:US12578714

    申请日:2009-10-14

    Abstract: In one aspect, the invention relates to a pipette tip mounting shaft configuration and a disposable pipette tip having a matching configuration. The mounting shaft includes a locking section located above a lower sealing section. The locking section has outwardly extending locking lobes located above a stop member and a lower sealing section located below the stop member. In certain embodiments, the diameter of the mounting shaft below the stop member is reduced in order to lessen insertion and ejection forces, which is particularly helpful for hand-held multi-channel pipettors. In these embodiments, the lower sealing section contains either a frustoconical sealing section, or an annular groove and a sealing ring, such as a flouroelastomeric O-ring seal. When the mounting shaft is fully inserted into the collar of the mating disposable pipette tip, the tip locks onto the mounting shaft. The bore of the pipette tip includes a circumferential shelf or shoulder separating its upper collar from the tip sealing area which is located below the circumferential shelf. The tip collar preferably includes a locking ring located at or near the upper opening for the mounting shaft. The dimensions of the collar, and in particular the distance between its circumferential shelf and the locking ring, are selected to match the dimensions of the mounting shaft between the stop member and the upper end of the locking lobes, thus locking the pipette tip in a secure, reliable position and orientation while using ergonomic insertion and ejection forces. The locking lobes preferably include a ramp portion that gently flexes and distorts the pipette tip collar out of round as the mounting shaft is inserted in the pipette tip, rather than stretching the tip collar. The circumferential shelf on the pipette tip between the tip collar and the barrel isolates the sealing area at the upper end of the barrel from distortion, thus facilitating reliable sealing engagement between the lower sealing section of the mounting shaft and the sealing ring in the upper end of the barrel of the pipette tip.

    LOCKING PIPETTE TIP AND MOUNTING SHAFT

    公开(公告)号:US20080286157A1

    公开(公告)日:2008-11-20

    申请号:US11934381

    申请日:2007-11-02

    Abstract: In one aspect, the invention relates to a pipette tip mounting shaft configuration and a disposable pipette tip having a matching configuration. The mounting shaft includes a locking section located above a lower sealing section. The locking section has outwardly extending locking lobes located above a stop member and a lower sealing section located below the stop member. In certain embodiments, the diameter of the mounting shaft below the stop member is reduced in order to lessen insertion and ejection forces, which is particularly helpful for hand-held multi-channel pipettors. In these embodiments, the lower sealing section contains either a frustoconical sealing section, or an annular groove and a sealing ring, such as a flouroelastomeric O-ring seal. When the mounting shaft is fully inserted into the collar of the mating disposable pipette tip, the tip locks onto the mounting shaft. The bore of the pipette tip includes a circumferential shelf or shoulder separating its upper collar from the tip sealing area which is located below the circumferential shelf. The tip collar preferably includes a locking ring located at or near the upper opening for the mounting shaft. The dimensions of the collar, and in particular the distance between its circumferential shelf and the locking ring, are selected to match the dimensions of the mounting shaft between the stop member and the upper end of the locking lobes, thus locking the pipette tip in a secure, reliable position and orientation while using ergonomic insertion and ejection forces. The locking lobes preferably include a ramp portion that gently flexes and distorts the pipette tip collar out of round as the mounting shaft is inserted in the pipette tip, rather than stretching the tip collar. The circumferential shelf on the pipette tip between the tip collar and the barrel isolates the sealing area at the upper end of the barrel from distortion, thus facilitating reliable sealing engagement between the lower sealing section of the mounting shaft and the sealing ring in the upper end of the barrel of the pipette tip.

    Test tube with data matrix code markings
    15.
    发明授权
    Test tube with data matrix code markings 有权
    试管用数据矩阵代码标记

    公开(公告)号:US06372293B1

    公开(公告)日:2002-04-16

    申请号:US09399405

    申请日:1999-09-20

    CPC classification number: B01L3/5453

    Abstract: A test tube comprises a tube body of unitary construction including an enclosed sidewall and an integral bottom that together define a tubular container having an open top. The bottom has a concave interior surface and a planar exterior surface upon which machine readable data is encoded within a multi-layered opaque coating that is deposited onto the planar exterior surface to uniquely identify the test tube. The machine readable data is preferably an open (i.e., non-proprietary) data matrix code. This code is applied to the test tube by depositing a multi-layer coating onto the planar exterior of the tube bottom. The multi-layer coating may include a first layer of opaque material that is deposited onto the planar exterior surface, and a second layer of opaque material that is deposited onto the first layer. The machine readable code is formed in the multi-layered coating by removing portions of the second layer.

    Abstract translation: 试管包括整体构造的管体,其包括封闭侧壁和整体底部,所述底部共同限定具有开口顶部的管状容器。 底部具有凹入的内表面和平坦的外表面,机器可读数据被编码在多层不透明涂层内,该多层不透明涂层沉积在平面外表面上以唯一地识别试管。 机器可读数据优选地是开放(即非专有)数据矩阵代码。 该代码通过将多层涂层沉积到管底部的平面外部上而应用于试管。 多层涂层可以包括沉积在平面外表面上的第一不透明材料层和沉积在第一层上的第二不透明材料层。 通过去除第二层的部分,在多层涂层中形成机器可读代码。

    Microplates with UV permeable bottom wells
    16.
    发明授权
    Microplates with UV permeable bottom wells 失效
    具有UV透过底孔的微孔板

    公开(公告)号:US5858309A

    公开(公告)日:1999-01-12

    申请号:US621085

    申请日:1996-03-22

    Abstract: Microplates and methods for manufacturing microplates. The microplate is designed to allow UV radiation to pass through the bottom wells of the microplate so that the microplate can be used for assaying samples by use of UV absorbance. In one embodiment, the microplate comprises at least first and second wells, each well having a UV permeable bottom. In another embodiment, the microplate comprises a frame having an upper portion and a lower portion contiguous with the upper portion and a sheet disposed between the upper portion and the lower portion and defining the bottom of at least one well of the microplate. One embodiment of the method includes steps of inserting a sheet of UV permeable material into a mold cavity that includes sections shaped to form the sidewalls of the plurality of wells, injecting molten plastic material into the mold cavity, and cooling the plastic material to form the microplate with the plastic material forming the sidewalls of each of the first and second wells and the sheet of UV permeable material forming the bottom of each of the first and second wells. Another embodiment of the method includes providing an upper plate defining sidewalls of at least one well, adhering an intermediate layer to the upper plate and adhering a sheet of UV permeable material to the intermediate layer. A further embodiment of the method includes inserting a sheet of material having at least one hole into a mold cavity, injecting a molten plastic material into the mold cavity and cooling the plastic material to form a microplate.

    Abstract translation: 微孔板和微孔板制造方法。 微孔板被设计成允许紫外线辐射通过微板的底部孔,使得微孔板可以用于通过使用UV吸光度来测定样品。 在一个实施方案中,微板包括至少第一和第二孔,每个孔具有可UV透过的底部。 在另一个实施例中,微孔板包括具有与上部邻接的上部和下部的框架,以及设置在上部和下部之间并限定微板的至少一个孔的底部的框架。 该方法的一个实施例包括以下步骤:将一片UV可渗透材料插入到模腔中,该模腔包括成形为形成多个孔的侧壁的部分,将熔融的塑料材料注入模腔中,并冷却塑料材料以形成 微板与塑料材料形成第一和第二阱中的每一个的侧壁以及形成第一和第二孔中每一个的底部的UV透过材料片。 该方法的另一实施例包括提供限定至少一个阱的侧壁的上板,将中间层粘附到上板并将一片UV可渗透材料粘合到中间层。 该方法的另一实施例包括将具有至少一个孔的材料片插入模腔中,将熔融的塑料材料注入模腔并冷却塑料以形成微板。

    Culture device having a detachable cell or tissue growth surface
    17.
    发明授权
    Culture device having a detachable cell or tissue growth surface 失效
    具有可分离细胞或组织生长表面的培养装置

    公开(公告)号:US5139951A

    公开(公告)日:1992-08-18

    申请号:US595305

    申请日:1990-10-10

    CPC classification number: C12M25/02 C12M23/00 C12M23/12

    Abstract: A tissue or cell growth device is described for placement within a well of a cluster dish. The device has a cell or tissue retention element detachably attached to a hanger. The hanger preferably has openings allowing access to the well without removal of the member and is capable of positioning the cell or tissue retention element a preselected distance relative to the hanger. Also described are various embodiments of the device having differently shaped hangers and the combination of the device and a cluster dish.

    Abstract translation: 描述了组织或细胞生长装置用于放置在簇盘的孔内。 该装置具有可拆卸地附接到衣架的细胞或组织保持元件。 衣架优选地具有允许进入井的开口,而不移除构件,并且能够将电池或组织保持元件相对于衣架定位成预选的距离。 还描述了具有不同形状的悬挂器以及装置和簇盘的组合的装置的各种实施例。

    Apparatus for growing tissue cultures in vitro
    18.
    发明授权
    Apparatus for growing tissue cultures in vitro 失效
    用于体外培养组织培养物的装置

    公开(公告)号:US5026649A

    公开(公告)日:1991-06-25

    申请号:US841562

    申请日:1986-03-20

    CPC classification number: C12M29/04 C12M25/04

    Abstract: Apparatus for growing tissue cultures in vitro, which permits a concentration gradient of nutrients to develop through a permeable membrane to which a sample of tissue is attached. The permeable membrane is attached to the bottom end of a tubular support that in turn hangs by a flange connected to its upper end on the top of a well containing the nutrients. Typically, the well is part of a tissue culture cluster dish. The flange of the support positions the support and membrane centrally in the well so as to avoid capillary action in the space between the well and support. The configuration of the support and its cooperation with the lid of the cluster dish also prevents the support and membrane from floating in the nutrient solution in the well. Openings in the support provide access for a pipette to add and withdraw fluid from the space between the well and membrane support and from the space below the membrane.

    Abstract translation: 用于在体外生长组织培养物的装置,其允许营养物的浓度梯度通过附着有组织样品的渗透膜发育。 可渗透膜附接到管状支撑件的底端,管状支撑件的底端又通过连接到容纳营养物质的孔的顶部上方的凸缘而悬挂。 通常,孔是组织培养簇盘的一部分。 支撑件的凸缘将支撑件和膜中心定位在井中,以避免在井和支撑件之间的空间中的毛细作用。 支架的配置及其与簇盘盖的配合也可防止支撑和膜浮在井中的营养液中。 支架中的开口提供移液管的通道,以从孔和膜支撑之间的空间以及膜下方的空间添加和抽出流体。

    Tissue culture flask
    19.
    发明授权
    Tissue culture flask 失效
    组织培养瓶

    公开(公告)号:US4927764A

    公开(公告)日:1990-05-22

    申请号:US122052

    申请日:1987-11-17

    CPC classification number: C12M23/32 B01L3/08 C12M23/08 C12M23/22 C12M23/38

    Abstract: A tissue culture flask having a flat bottom wall with optical properties on the inner surface of which cells are grown. A top wall opposite the bottom wall has a large opening therethrough which provides access to the growing surface for the removal of cells growing on the surface. The opening is closed by a flexible transparent film which is sealed to the top wall and which may be peeled off the top wall to provide access to the flask interior.

    Abstract translation: 一种组织培养瓶,其具有在其内表面上生长细胞的具有光学性质的平坦底壁。 与底壁相对的顶壁具有穿过其的大开口,其提供进入生长表面以去除在表面上生长的细胞。 开口由柔性透明膜封闭,该透明膜密封到顶壁,并且可以从顶壁剥离以提供通向烧瓶内部的通路。

    Small volume laboratory filter
    20.
    发明授权
    Small volume laboratory filter 失效
    小体积实验室过滤器

    公开(公告)号:US4690757A

    公开(公告)日:1987-09-01

    申请号:US842494

    申请日:1986-03-21

    Abstract: A small volume laboratory filter having a thin rectangular body and coaxial inlet and outlet sleeves connected to opposite ends thereof. A very thin filter cavity is formed in the body and lies in a plane inclined slightly to the common axis of the inlet and outlet sleeves. The cavity is divided by a filter membrane into extremely thin chambers, one communicating with the inlet sleeve and the other with the outlet sleeve. A rigid package for the filter is sealed across one end by a flexible cover which when stripped from the package exposes the inlet sleeve so that it may be readily engaged by a syringe nipple or other fluid source without the user having to touch the filter. When the inlet sleeve is engaged, the filter may be withdrawn from the package.

    Abstract translation: 具有薄的矩形体的小体积实验室过滤器和连接到其相对端的同轴入口和出口套筒。 在体内形成非常薄的过滤腔,并且位于与入口和出口套筒的公共轴线稍微倾斜的平面内。 空腔被过滤膜分成非常薄的室,一个与入口套管相通,另一个与出口套管连通。 用于过滤器的刚性包装通过柔性盖密封在一端上,当从包装件剥离时,柔性罩暴露入口套筒,使得其可以容易地通过注射器管接头或其它流体源接合,而用户不必接触过滤器。 当入口套筒接合时,过滤器可以从包装件中取出。

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