CN1817475A - 手动离心机 - Google Patents
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Abstract
提供一种手动离心机。在该手动离心机中,惯性体具有绳的一端连接于其的轴、以及一对连接于轴的惯性轮,而至少一个封闭容器安装在惯性体中从而容纳待离心分离的物质。
Description
技术领域
本发明涉及一种手动离心机,并且更加特别地涉及一种便于携带的手动离心机。
背景技术
离心分离包括使用离心力用于具有不同成分或比重的混合物的分离、提纯、或浓缩。离心机是一种使用离心力从悬浊液中分离颗粒物的设备。
离心机的性能通过其产生的离心力的大小来确定。相对离心力(RCF=离心加速度/重力加速度)用于表示离心机的性能。由于离心加速度的大小(ac)等于回旋半径(r)乘以角速度的平方(ω2):ac=rω2,RCF的大小由回旋半径(r)和角速度(ω)确定。离心机用于诸如食品、制药、以及采矿业的各个领域中使用。
大多数离心机采用电机产生离心力,这增大了成本、体积和复杂性。过大的体积意味着离心机不适于携带。
发明内容
本发明提供一种能够产生离心力而无需电机且易于携带的手动离心机。
根据本发明的一方面,提供一种手动离心机,包括:惯性体,具有绳的一端连接于其的轴、以及一对连接于轴的惯性轮;以及至少一个封闭容器,安装在惯性体中从而容纳待离心分离的物质。
附图说明
通过参照附图详细介绍本发明的典型实施例,将使本发明的上述和其它特征及优点更加明显易懂,附图中:
图1为根据本发明第一实施例的手动离心机的透视图;
图2为安装在根据本发明的手动离心机的封闭容器的截面图;
图3为示出根据本发明第一实施例的手动离心机的旋转速度的实验测量数据的曲线图;
图4示出了图3所示的实验后封闭容器中的物质;
图5为根据本发明第二实施例的手动离心机的分解透视图;
图6示出了安装在根据本发明第二实施例的手动离心机中的封闭容器的另一示例;
图7为示出根据本发明第二实施例的手动离心机的旋转速度的实验测量数据的表格;
图8为根据本发明第三实施例的手动离心机的透视图;以及
图9为根据本发明第四实施例的手动离心机的透视图。
具体实施方式
现在将参照附图介绍本发明,其中示出了本发明的典型实施例。附图中相同的附图标记始终表示相同的元件。
图1为根据本发明第一实施例的手动离心机的透视图。
参照图1,手动离心机10包括惯性体。该惯性体包括绳11的一端连接于其的轴12,以及连接于轴12的一对惯性轮13。
另外,手动离心机10包括安装在惯性轮13外表面上的封闭容器。诸如血液或细胞组织的物质可以容纳在封闭容器20中用于离心分离。封闭容器20的结构特征将在后面参照图2介绍。
在用户操作手动离心机10时,持住缠绕在州12周围的绳11的一端,随着绳11松开,惯性体的惯性轮13加速至很高的旋转速度。若绳11的另一端固定于轴12,绳11可以在其完全松开后再缠绕在惯性体的轴12的周围,允许惯性轮13随着绳11松开和再缠绕而连贯地旋转。若绳11的一端未固定于轴12,惯性轮13可以在绳11完全松开后继续旋转一段。在惯性轮13旋转的同时,若用户在绳11的一端处施加冲力,绳11可以再缠绕在轴12的周围,允许惯性体随着绳11的松开和再缠绕而连贯地旋转。
随着惯性轮13旋转,安装在惯性轮13上的封闭容器20也旋转。由此,离心力作用于封闭容器20中的物质上,从而将其离心分离。用于离心分离的时间可以通过等式1在物质的沉淀速度上来估计,如下:
[等式1]
其中,Used为沉积速度,r1为物质的尺寸(半径),r2为从轴12的中心测得的封闭容器20的回旋半径,ω为惯性轮13的角速度,ρ1为该物质的密度,ρ2为封闭容器20中流体的密度,而μ为流体的粘滞度。
由于物质的沉积速度与惯性.轮13的角速度的平方成正比,增大惯性轮13的角速度使得能够更快地离心分离物质。
封闭容器20可以以相等的角度(α=β=γ)排列,从而允许惯性体平稳地旋转。另外,此排列允许有效地使用惯性轮13外表面上的空间。由于物质的成分必须在离心后从封闭容器20中提取出,封闭容器20可以从惯性轮13上拆下。
图2为安装在根据本发明的手动离心机的封闭容器的截面图。
参照图2,封闭容器20安装在惯性体上从而容纳待离心分离的物质。封闭容器20包括主体21和主体21上的帽22。主体21和帽22通过连接部分23连接。帽22在其底部包括向下突出24。在突出24进入主体21的顶部时,主体21内的容纳腔25由外界隔开。
另外,封闭容器20可以包括过滤器26。当离心机在完成封闭容器20中的物质的离心分离后停止时,离心力不再作用于物质,且重力作用与离心分离的物质,这将其再混合。即,若在离心机10停止旋转时倒置或倾斜封闭容器20,重力迫使封闭容器20中的物质离心分离出的成分移动,使得物质再混合。因此,可以设置过滤器26从而防止物质离心分离出的成分再混合。过滤器26限定有多个物质的每种成分可以通过其透过的孔。孔的尺寸取决于所述物质成分的尺寸。即,孔的尺寸确定为使得物质的每种成分可以在离心力的作用下通过孔而无离心力时不会。例如,在从血液中分离病毒和细菌时,孔具有约1μm的直径,从而允许病毒和细菌而非红和白血细胞穿透。
在本实施例中,安装在封闭容器20中的过滤器26防止物质的离心分离成分的再混合。然而,本发明不限于过滤器26。可以使用具有对于该物质的该成分的平均比重且不会与该物质混合的凝胶作为过滤器26。例如,在琼脂糖的浓度设置为0.1%、0.5%和1%并随后固化琼脂糖时,其根据其浓度限定出不同尺寸的孔。由此,根据待离心分离的物质的成分调整琼脂糖的浓度可以便于离心分离过程。
可以在过滤器26下的部分27中添加溶解缓冲剂从而帮助待离心分离的物质的成分的分解。
图3为示出根据本发明第一实施例的手动离心机的旋转速度的实验测量数据的曲线图,而图4示出了图3所示的实验后封闭容器中的物质。实验利用1m长的绳、6cm直径惯性轮、以及5mm直径的轴重复5次。
参照图3,惯性体的旋转速度随着时间的流逝而由于轴12与绳11之间的摩擦而降低。惯性体的平均旋转速度从直接在其操作后(图中的0秒)4928rpm(RCF:约550g)下降至30秒钟后2561rpm(RCF:约150g)。
参照图4,附图标记30为容纳使用传统离心机在3000rpm(RCF:约800g)离心分离的血液的封闭容器。附图标记31为容纳使用根据本发明第一实施例的手动离心机10根据本发明第一实施例在图3所示的旋转速度下离心分离的血液的封闭容器。实验显示本发明的手动离心机10可以稳定地离心分离物质。
图5为根据本发明第二实施例的手动离心机的分解透视图。
参照图5。手动离心机40利用回转效果。手动离心机40包括在其顶部限定有孔42的上机壳41,以及下机壳44。上机壳41在其底部具有槽43,而下机壳44在其顶部具有具有脊45,使得上下机壳41和44可以彼此连接。另外,手动离心机40包括环46和回转转子48。在组装时,环46可旋转地插在槽43与脊45之间,而转子48可旋转地连接于环46。转子48包括其中心处的轴50,以及其外表面上的脊49。在组装时,轴50可旋转地插在环46的孔47种,而绳缠绕在脊49的周围。拉动绳旋转转子48。
另外,转子48包括至少一个管52,其中可以插入封闭容器20。管52可以以预定的角度朝向轴50倾斜,从而有效地将离心力作用于封闭容器20中的物质。封闭容器20可以以相等的角度排列在轴50的周围从而允许转子48平稳旋转。封闭容器20可以从管52上卸下从而允许容易地从封闭容器20中取出离心分离的物质。
在用户利用在脊49周围缠绕几次的绳向转子48施加力时,转子48开始旋转。[拉]通过用力拉绳,用户可以向转子48施加很强的旋转力,增加转子48的初始角速度。
在使用绳旋转转子48时,用户用一只手握住手动离心机40并通过手腕的动作将其旋转,产生扭矩从而在每个旋转轴彼此垂直的情况下旋转环46和转子48。此扭矩增大了转子48的角速度。在转子48的角速度在重复此动作后超出预定的水平时,离心分离了封闭容器20中的物质。
图6示出了安装在根据本发明第二实施例的手动离心机中的封闭容器的另一示例。
参照图6,手动离心机40的转子48包括至少一个片簧55和固定部分57。设置片簧55从而容纳封闭容器20,且其可以使用诸如螺钉56的额外固定器固定于转子48。
在封闭容器20安装于转子48时,封闭容器20的下部占据在片簧55上,而封闭容器20的上部通过固定部分57支撑。详细而言,用户朝向片簧55推动封闭容器20,其弯曲从而在片簧55与固定部分57之间形成足够的间隙。在片簧55中积累了弹性恢复能量。在将封闭容器20的上部插入间隙中后,用户释放开封闭容器20从而允许片簧55朝向固定部分57压迫封闭容器20释放积累的弹性能量。按此方式,封闭容器20可以固定地安装在转子48中。
图7为示出根据本发明第二实施例的手动离心机的旋转速度的实验测量数据的图表。
参照图7,第一行中的字母A至L表示实验中的九个参与者,而各列中的数值表示以rpm表示的手动离心机的转速。对于所有参与者的平均转速为11158rpm(约2090g)。这种结果显示,根据第二实施例的手动离心机比第一实施例的旋转得更快。因此,根据第二实施例可以更有效地离心分离封闭容器20中的物质。
图8为根据本发明第三实施例的手动离心机的透视图。
参照图8,手动离心机60利用回转仪陀螺(gyroscope top)的原理。手动离心机60包括回转仪陀螺和安装在回转仪陀螺从而容纳待离心分离的物质的至少一个封闭容器20。回转仪陀螺包括轴61、轴61周围的盘63、以及其上支撑轴61的轴支撑环64。
另外,回转仪陀螺可以包括以与盘相同的平面连接于轴支撑环64的总体支撑环65。总体支撑环65提供对防止外部干扰的盘63的旋转的保护,并且更加便于用户。
工作中,用户将绳62缠绕在轴61周围,并且拉动绳62,而绳62与轴61之间的摩擦力以高速转动轴61。相应地,围绕轴61形成的盘63与轴61一起旋转。根据回转仪陀螺的原理,手动离心机60可以在保持轴61的恒定朝向的同时以高速旋转。由此,安装在盘63上的封闭容器20中的物质可以轻易离心分离。另外,本实施例的手动离心分离机60很小且简单,这提高了可携带性。封闭容器20可以以相等的角度排列。
图9为根据本发明第四实施例的手动离心机的透视图。
参照图9,手动离心机70利用了飞去来器的原理。手动离心机70包括扁平的飞去来器和至少一个安装在飞去来器中从而容纳待离心分离物质的封闭容器20。工作中,用户在空中抛出手动离心机70,从而使其旋转。通过手动离心机70的旋转产生的离心力作用于封闭容器20中的物质,从而离心分离该物质。封闭容器20可以优选安装在飞去来器的两端从而在旋转手动离心机70时向封闭容器20中的物质施加更强的离心力。
同时,本发明的手动离心机10/40/60/70可以在封闭容器20中包括额外的分离剂,从而从物质中分离特殊的成分。例如,在其用于从血液中分离白血细胞时,可以在向封闭容器20添加分离剂后进行离心分离操作,从而容易地离心分离白血细胞。在利用分离剂进行离心分离操作后,封闭容器20中的血液从封闭容器20的底部起分为红血细胞层、白血细胞层、以及血浆层。白血细胞可以从血液中容易地离心分离出来。另外,安装在封闭容器20中的过滤器26防止血液中已经分开的成分再混合。
如上所述,由于本发明的手动离心机易于携带,其可以不受时间和地点限制地使用。
虽然已经参照本发明的典型实施例特别地示出和介绍了本发明,本领域技术人员将可理解,可以在不脱离由所附权利要求限定的本发明的实质和范围基础上对其进行形式和细节上的各种改变。
Claims (24)
1.一种手动离心机,包括:
惯性体,具有绳的一端连接于其的轴,以及一对连接于轴的惯性轮;以及
至少一个封闭容器,安装在惯性体中从而容纳待离心分离的物质。
2.如权利要求1的手动离心机,其中封闭容器包括过滤器,从而保持封闭容器中物质的离心分离状态。
3.如权利要求2的手动离心机,其中过滤器由凝胶制成。
4.如权利要求1的手动离心机,其中至少一个封闭容器安装在惯性轮对中。
5.如权利要求1的手动离心机,其中封闭容器可以拆下。
6.如权利要求1的手动离心机,其中封闭容器以相等的角度排列。
7.如权利要求1的手动离心机,其中封闭容器包括溶解缓冲剂。
8.如权利要求1的手动离心机,其中封闭容器包括从物质中离心分离期望成分的分离剂。
9.一种手动离心机,包括:
回转仪,具有转子、转子的轴连接于其的环、以及环可旋转地连接于其的机壳;以及
至少一个封闭容器,安装在回转仪中从而容纳待离心分离的物质。
10.如权利要求9的手动离心机,其中转子形成有至少一个其中插入封闭容器的管。
11.如权利要求9的手动离心机,其中转子包括至少一个封闭容器连接于其的弹性结构。
12.如权利要求11的手动离心机,其中弹性结构为片簧。
13.如权利要求9的手动离心机,其中封闭容器包括过滤器,从而保持封闭容器中物质的离心分离状态。
14.如权利要求13的手动离心机,其中过滤器由凝胶制成。
15.如权利要求9的手动离心机,其中封闭容器安装在转子中。
16.如权利要求9的手动离心机,其中封闭容器可以拆下。
17.如权利要求9的手动离心机,其中封闭容器以相等的角度排列。
18.如权利要求9的手动离心机,其中封闭容器包括溶解缓冲剂。
19.如权利要求9的手动离心机,其中封闭容器包括从物质中离心分离期望成分的分离剂。
20.一种手动离心机,包括:
回转仪陀螺,具有轴、形成在轴周围的盘、以及其上支撑轴的轴支撑环;以及
至少一个封闭容器,安装在回转仪陀螺中从而容纳待离心分离的物质。
21.如权利要求20的手动离心机,其中回转仪陀螺包括以与盘相同的平面与支撑环连接的总体支撑环。
22.如权利要求20的手动离心机,其中封闭容器以相等的角度排列。
23.一种手动离心机,包括:
扁平的飞去来器;以及
至少一个封闭容器,安装在飞去来器中从而容纳待离心分离的物质。
24.如权利要求23的手动离心机,其中封闭容器安装在飞去来器的两端。
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CN107971146A (zh) * | 2017-12-28 | 2018-05-01 | 楼奇杰 | 一种血型血清学用离心机 |
CN107971146B (zh) * | 2017-12-28 | 2024-06-04 | 南京邓迪医疗设备科技有限公司 | 一种血型血清学用离心机 |
TWI696496B (zh) * | 2019-05-03 | 2020-06-21 | 國立臺灣大學 | 手動離心裝置、具該裝置之系統及分離血液之方法 |
CN114273092A (zh) * | 2021-12-18 | 2022-04-05 | 盐城市伽小略科技培训有限公司 | 一种新型无电力驱动单元的高速离心装置 |
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KR100624458B1 (ko) | 2006-09-19 |
KR20060083506A (ko) | 2006-07-21 |
US20060160688A1 (en) | 2006-07-20 |
TWI276467B (en) | 2007-03-21 |
JP2006198614A (ja) | 2006-08-03 |
US7645223B2 (en) | 2010-01-12 |
CN100469455C (zh) | 2009-03-18 |
EP1681098B1 (en) | 2010-02-17 |
DE602005019380D1 (de) | 2010-04-01 |
TW200631665A (en) | 2006-09-16 |
EP1681098A3 (en) | 2006-08-16 |
EP1681098A2 (en) | 2006-07-19 |
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