CN203886663U - 一种可去磁磁性分离架 - Google Patents
一种可去磁磁性分离架 Download PDFInfo
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Abstract
本实用新型公开了一种可去磁磁性分离架。包括离心管固定架和磁性插条两个独立可组合的部分;离心管固定架可放置多个不同规格的离心管,磁性插条上固定有数个永磁体。带离心管孔侧板上开有一个磁性插条穿梭孔,通过磁性插条的插入和插出,方便的实现给离心管固定架上放置的离心管加磁与去磁的功能。本实用新型外形美观,体积小巧,操作轻便、快捷,可实现待处理样品的轻松去磁,并适用于多种规格离心管的操作。
Description
技术领域
本实用新型属于生物实验器材技术领域,具体涉及一种实验室用的磁分离技术分离生物大分子样品的可去磁磁性分离架。
背景技术
在生物学,医学检测等研究领域中,采用磁性材料提取分离各种生物大分子(如细胞、DNA、 RNA、蛋白、病毒等生物活性分子)逐步为不同领域所接受,并逐步替代原有费时、费力、提取效率低或是有毒性的传统方法(有机溶剂抽提,柱提等)。磁性分离技术的另一无可替代的优势是可大规模多样品平行操作,适用于全自动化操作平台,全球已有多家跨国公司涉足磁性材料以及相应器材的研发。磁性分离技术是将能够结合待分离样品的磁性材料加入到含有待分离样品并适于磁性材料与待测样品相结合的溶液中,等磁性材料与待分离样品充分结合后,通过磁性分离架对磁性材料混合溶液施加外磁场,在外磁场的作用下,将结合有待分离样品的磁性材料从溶液中分离出来,从而实现待分离生物样品的富集。
市售常见磁性分离架产品的磁性部分一般是固定在离心管架上的,故在去磁步骤中需要将样品管转移到其他无磁性离心管架上,操作较为不便,还容易造成样品混淆甚至污染。
实用新型内容
针对现有磁性分离架存在的缺陷,本申请人经过研究改进,提供一种可实现待处理样品的轻松去磁,轻便小巧,且多个样品可同时操作的实验室用可去磁磁性分离架。
本实用新型的技术方案如下:
一种可去磁磁性分离架,包括离心管固定架和磁性插条,所述离心管固定架和磁性插条为两个独立可组合的部分;
所述离心管固定架包括上层板、下层板、带离心管孔侧板和带铁磁体侧板;所述带离心管孔侧板和带铁磁体侧板相互平行;所述上层板和下层板相互平行,垂直于带离心管孔侧板和带铁磁体侧板,并固定于带离心管孔侧板和带铁磁体侧板中间;
所述上层板的长边对称轴两侧各设有一排上层板离心管孔;所述下层板设有离心管固定孔,数量和位置与上层板离心管孔对应;所述带离心管孔侧板正中设有一磁性插条穿梭孔,所述磁性插条穿梭孔两侧设有两个适配15ml和/或50ml规格的侧板离心管孔;
所述磁性插条上设有一排圆孔,数量和间隔位置与一排上层板离心管孔对应,每个圆孔中固定有一个圆柱形永磁体。
其进一步的技术方案为:所述上层板离心管孔的孔径根据需要设置为0.2ml、0.5ml、1.5ml、2ml、5ml、10ml、15ml或50ml。
其进一步的技术方案为:所述离心管固定架和磁性插条组合后,所述离心管固定孔上表面到其对应的圆柱形永磁体底边切线的距离为为1~5mm。
其进一步的技术方案为:所述带铁磁体侧板内侧固定有一个铁磁体,位置与磁性插条穿梭孔对应。
其进一步的技术方案为:所述上层板的长边对称轴上设有上层板磁性插条滑动轨道,所述下层板对应的位置设有下层板磁性插条滑动轨道。
其进一步的技术方案为:所述磁性插条末端设有扶手。
其进一步的技术方案为:所述离心管固定孔轴心线偏近下层板的长边对称轴,与其对应的上层板离心管孔轴心线距离1~5mm。
其进一步的技术方案为:所述下层板设有样品观察孔,与所述离心管固定孔相切。
其进一步的技术方案为:所述离心管固定架和磁性插条材质为PMMA、PEEK、PVC、 PE、PP或PET。
其进一步的技术方案为:所述圆柱形永磁体及铁磁体材质为铷铁硼。
优选地:
所述上层板长为50~150mm,宽为30~70mm,所述下层板长为50~150mm,宽为30~70mm,所述上层板到下层板的距离为24~100mm。
所述样品观察孔为长方形,长为2~12mm,宽为1~10mm,所述离心管固定孔直径为3~8mm。
所述磁性插条穿梭孔长为6.5~12mm,宽为8~12mm,所述磁性插条宽为28.2~110mm,长为70~170mm,厚为4~8mm。
所述圆柱形永磁体数目为3~16块,厚度为4~8mm,直径为8~18 mm。
所述铁磁体为圆柱形,直径为8~18mm,厚4~8mm。
本实用新型有益的技术效果为:
本实用新型采用离心管固定架和磁性插条两部分可拆分和可组装式设计,一方面可将离心管架单独进行振荡等整体操作,另一方面,将二者组装后即可实现样品的磁分离,将离心管架从磁性底座上移开即可实现轻松去磁,操作方便快捷,且适用不同规格离心管,一次性实现批量样品中生物大分子磁性材料的有效分离,大大提高了工作效率,有效避免了样品混淆和交叉污染,可广泛适用于生物或医学领域实验中大分子活性物质的磁性分离等实验。
另外本实用新型外形轻便小巧,操作过程中便于抓握和整体移动。
附图说明
图1为本实用新型示意图。
图2为本实用新型离心管固定架示意图。
图3为本实用新型磁性插条示意图。
具体实施方式
如图1、图2和图3所示,本实施例中的可去磁磁分离架包括离心管固定架1和磁性插条2,二者为两个独立的可组合部分。本实施例中离心管固定架1和磁性插条2材质为PMMA板。
离心管固定架1由上层板3(本实施例中长114mm,宽45mm)、下层板4(本实施例中长114mm,宽45mm)、带离心管孔侧板5和带铁磁体侧板6组成。带离心管孔侧板5和带铁磁体侧板6相互平行,上层板3和下层板4相互平行,垂直于带离心管孔侧板5和带铁磁体侧板6,并固定于带离心管孔侧板5和带铁磁体侧板6中间。
上层板3和下层板4长边对称轴位置各开有一条平行的上层板磁性插条移动轨道7和下层板磁性插条移动轨道8(本实施例中长120mm,宽6.2mm,深0.5mm),使得磁性插条2能够方便的插入和拔出,保证该实用新型在使用过程中,离心管固定架1上的装有样品的离心管不会因为磁性插条2没有按直线移入和移出造成离心管旋转而导致样品之间的交叉污染。
上层板3的上层板磁性插条移动轨道7的两侧开设有两排(本实施例中共16个)上层板离心管孔11(本实施例中直径11.56mm),适配1.5ml离心管;下层板4上设有相对应的16个1.5ml离心管固定孔12(本实施例中直径5.3mm)。离心管固定孔12轴心线与对应的上层板离心管孔11轴心线距离为4.6mm,位置更靠近下层板4的长边对称轴,使得可去磁磁分离架组装使用后,离心管的底部贴近磁性插条2,以保证足够磁力。下层板4还设有与离心管固定孔12相切且与下层板4长边平行的长方形的样品观察孔13(本实施例中长5.8mm,宽3.5mm),便于在离心管液面低于所述下层板4时观察其内磁性分离情况。
带离心管孔侧板5正中设置一个磁性插条穿梭孔9(本实施例中宽8.1mm,长29.2mm),磁性插条穿梭孔9两侧设置2个15ml适配的离心管孔14(本实施例中直径17.04mm);
带铁磁体侧板6内侧固定有一个圆柱形的铁磁体10(本实施例中直径13mm,厚6mm),位置与磁性插条穿梭孔9对应,此处铁磁体10的设置保证磁性插条2组合在离心管固定架1上时不会滑落和晃动,保证离心管内磁颗粒稳定聚团,不会出现因外磁场的移动而再分散的现象。
磁性插条2(本实施例中长151mm,宽27mm,厚5.8mm)上面设有一排8个间隔均匀的圆孔,每个圆孔中镶嵌有1个圆柱形永磁体15(本实施例中直径11mm,厚6mm),磁性插条2末端有圆孔状扶手16(本实施例中直径14mm),方便滑动操作。
离心管固定架1和磁性插条2组合后,离心管固定孔12的上表面到其所对应的圆柱形永磁体15底边切线的距离为4mm,能保证将试管中的磁性材料聚集在试管壁一侧并距管底有一定的距离,以便移液器吸除上清而避免触碰到磁性材料团。
使用时,先将装有待处理样品的离心管按规格置于上层板3适配的上层板离心管孔11内,以下层板4的离心管固定孔12加以固定,可单独将离心管固定架1置于漩涡振荡器上振荡混匀,在需要磁性分离时,将磁性插条2经磁性插条穿梭孔9沿上层板磁性插条轨道7和下层板磁性插条轨道8轻轻滑入离心管固定架1以加入外磁场,实现样品的磁分离;将磁性插条2轻轻沿轨道抽出即可实现轻松去磁,操作方便快捷。
所述离心管固定架1也可以将带铁磁体侧板6作为底部使用,离心管孔侧板5上的15ml和/或50ml规格的侧板离心管孔14中可以插入离心管,由于15ml和50ml的离心管直径较大,靠离心管本身的重量和离心管中物质的重量就可以使离心管不易移动,无需设置离心管固定孔。
以上所述的仅是本实用新型的优选实施方式,本实用新型不限于以上实施例。可以理解,本领域技术人员在不脱离本实用新型的精神和构思的前提下直接导出或联想到的其他改进和变化,均应认为包含在本实用新型的保护范围之内。
Claims (10)
1.一种可去磁磁性分离架,包括离心管固定架(1)和磁性插条(2),其特征在于:所述离心管固定架(1)和磁性插条(2)为两个独立可组合的部分;
所述离心管固定架(1)包括上层板(3)、下层板(4)、带离心管孔侧板(5)和带铁磁体侧板(6);所述带离心管孔侧板(5)和带铁磁体侧板(6)相互平行;所述上层板(3)和下层板(4)相互平行,垂直于带离心管孔侧板(5)和带铁磁体侧板(6),并固定于带离心管孔侧板(5)和带铁磁体侧板(6)中间;
所述上层板(3)的长边对称轴两侧各设有一排上层板离心管孔(11);所述下层板(4)设有离心管固定孔(12),数量和位置与上层板离心管孔(11)对应;所述带离心管孔侧板(5)正中设有一磁性插条穿梭孔(9),所述磁性插条穿梭孔(9)两侧设有两个适配15ml和/或50ml规格的侧板离心管孔(14);
所述磁性插条(2)上设有一排圆孔,数量和间隔位置与一排上层板离心管孔(11)对应,每个圆孔中固定有一个圆柱形永磁体(15)。
2.如权利要求1所述一种可去磁磁性分离架,其特征在于:所述上层板离心管孔(11)的孔径根据需要设置为0.2ml、0.5ml、1.5ml、2ml、5ml、10ml、15ml或50ml。
3.如权利要求1所述一种可去磁磁性分离架,其特征在于:所述离心管固定架(1)和磁性插条(2)组合后,所述离心管固定孔(12)上表面到其对应的圆柱形永磁体(15)底边切线的距离为为1~5mm。
4.如权利要求1所述一种可去磁磁性分离架,其特征在于:所述带铁磁体侧板(6)内侧固定有一个铁磁体(10),位置与磁性插条穿梭孔(9)对应。
5.如权利要求1所述一种可去磁磁性分离架,其特征在于:所述上层板(3)的长边对称轴上设有上层板磁性插条滑动轨道(7),所述下层板(4)对应的位置设有下层板磁性插条滑动轨道(8)。
6.如权利要求1所述一种可去磁磁性分离架,其特征在于:所述磁性插条(2)末端设有扶手(16)。
7.如权利要求1所述一种可去磁磁性分离架,其特征在于:所述离心管固定孔(12)轴心线偏近下层板(4)的长边对称轴,与其对应的上层板离心管孔(11)轴心线距离1~5mm。
8.如权利要求1所述一种可去磁磁性分离架,其特征在于:所述下层板(4)设有样品观察孔(13),与所述离心管固定孔(12)相切。
9.如权利要求1所述一种可去磁磁性分离架,其特征在于:所述离心管固定架(1)和磁性插条(2)材质为PMMA、PEEK、PVC、 PE、PP或PET。
10.如权利要求1所述一种可去磁磁性分离架,其特征在于:所述圆柱形永磁体(15)及铁磁体(10)材质为铷铁硼。
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US14/317,969 US9358542B2 (en) | 2014-05-22 | 2014-06-27 | Magnetic tube rack |
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