CN2910250Y - 医用剂量装置 - Google Patents
医用剂量装置 Download PDFInfo
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- CN2910250Y CN2910250Y CNU2004201166792U CN200420116679U CN2910250Y CN 2910250 Y CN2910250 Y CN 2910250Y CN U2004201166792 U CNU2004201166792 U CN U2004201166792U CN 200420116679 U CN200420116679 U CN 200420116679U CN 2910250 Y CN2910250 Y CN 2910250Y
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- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1066—Tube connectors; Tube couplings having protection means, e.g. sliding sleeve to protect connector itself, shrouds to protect a needle present in the connector, protective housing, isolating sheath
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- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating valves
Abstract
本实用新型公开了一种阀组件,其包括凸座端部、凹座端部以及用于在凸座端部和凹座端部之间输送液体的通道;阀部件,可以在关闭所述通道的封闭位置和打开所述通道的打开位置之间移动;偏置部件,用于将阀部件向封闭端偏置;以及助推部件,其延伸到凸座端部,当医用附件的凹座端部与凸座端部耦合时,助推部件与阀部件耦合来推动阀部件。
Description
技术领域
本实用新型涉及一种医用剂量装置。此外,本实用新型还涉及一种药液输送阀,特别涉及一种与注射器或其它医用剂量装置一起使用的阀组件。
背景技术
注射器一般用于给患者输入药物或其它生物液体。普通的注射器具有一个柱塞,该柱塞与外部圆柱形室密封配合形成内部液体接收腔。凸座(male luer)通常位于该室的输送未端,其接收具有针头之类的凹座(female luer)。连接腔与凹凸座的液体通道通常是打开的,这使得当移去针头时,腔相对于外部环境是开放的。问题就是因为许多药物和生物液体对于外部环境是敏感的(暴露时药性降级)。
实用新型内容
因此,本实用新型的目的在于提供一种克服现有技术中上述缺陷的医用剂量装置。此外,本实用新型还提供一种与注射器或其它医用剂量装置一同使用的阀组件,可使得注射器在不使用时相对于环境是封闭的。
在发明内容的一部分中,本实用新型提供了一种阀组件,其包括:一个凸座端部、一个凹座端部以及一个用于在凸座端部和凹座端部之间输送液体的通道;阀部件,可以在封闭位置和打开位置之间移动;偏置部件,用于将阀部件向封闭端偏置;以及助推部件,其延伸到凸座端部,当医用附件的凹座端部与凸座端部耦合时,助推部件与阀部件耦合来推动阀部件。
在实施例中,凸座端部具有一个内部突起和一个外部螺纹套,它们之间留有空间用以接收凹座端部。助推部件包括一个位于外部螺纹套和内部突起之间的助推元件。
在实施例中,阀部件包括一个阀座和一个相对阀座可移动的阀元件。通道包括紧邻凹座端部的第一通道部,内部突起包括第二通道部。阀元件具有一个与第一和第二通道部液体连通的阀通道部。阀座在第二通道部中形成以及阀元件与凹座端部一体形成。
在实施例中,阀元件包括朝向壳部的内表面延伸的固定凸缘。这种情况下,壳部与凸座端部耦合使其相对与阀元件移动。当阀部件在关闭的位置,凸座端部与固定凸缘配合,当阀部件在打开的位置,凸座端部与所述固定凸缘分开。壳部以紧邻凹座端部的未端区域终止,偏置部件包括一个压缩弹簧,其位于壳部的未端与固定凸缘外部之间。
在本发明内容的另一个部分中,本实用新型提供了一个医用剂量装置,其包括:一个主体,具有一个用于容纳液体物质的室;阀组件,与所述室液体连通,该阀组件具有一个凸座耦合元件,用于与医用附件上的凹座耦合元件配合,在药物剂量装置和医用附件之间形成液体连通;阀组件进一步包括流量控制装置,用来控制流经凸座耦合元件的液体流量,其中,当凹座耦合元件与流量控制装置行进连接时,流量控制装置被凹座耦合元件推移从而打开凸座耦合元件。因此,当凹座耦合元件与流量控制装置分离时,流量控制装置由凹座耦合元件推移从而关闭凸座耦合元件。
在实施例中,凸座耦合元件包括:一个内部凸座部和一个外套部,它们之间的空间形成一个通路,用于接收凹座耦合元件;流量控制装置包括至少一个阀助推部,其位于所述的通路中,用来使流量控制装置与凹座耦合元件邻接,并沿着所述通路在凹座的行进中推移阀元件。阀组件包括一个阀元件和一个阀座,其中,阀元件与阀座相对应,用于关闭凸座耦合元件。阀助推部包括一对邻接元件,该邻接元件之间沿着通路的空间,用于接收凹座耦合元件,其中,该对邻接元件可以沿通路与凹座耦合元件一起行进。
在实施例中,助推部相对于通路位于纵向向方向上,邻接元件沿着助推部布置。阀元件包括一个支承板和多个在支承板等间隔分布的多个助推部,每个助推部具有第一和第二邻接元件。
在实施例中,阀助推部包括一个制动凸缘,其与其中的一个邻接元件相邻。阀组件包括一个制动座,在凸座耦合元件在关闭的位置时,接收制动凸缘。助推部有一个远侧未端区,制动凸缘位于相邻的远侧未端,并且制动座在外套部形成。这样弯曲布置助推部目的是从制动座移出制动凸缘。
在本发明的另一个部分,本实用新型提供了一种医用剂量装置,其包括:一个主体,具有一个能容纳液体物质的室;一个阀组件,与该室液体连通,该阀组件具有一个凸座耦合元件,用于与医用附件上的凹座耦合元件配合,在医用剂量装置和医用附件之间形成液体连通,凸座耦合元件包括一个突起和一个相对于突起可移动的外部阀元件,在突起和外部阀元件之间形成了一个液体通道,套部包围突起,突起和套部之间的空间形成一个通路用于接收凹座耦合元件,阀元件可以与凹座耦合元件配合并相对于所述突起移动,在凹座耦合元件与凸座耦合元件连结时,液体通道打开。
在实施例中,阀元件形成一个凸座耦合部的外表面。
在实施例中,布置偏置部件用来向与所述突起配合的位置偏置阀元件来关闭液体通道。在该情况下,所述通道在内壁结束并且偏置部件包括一个位于内壁和阀元件之间的弹簧。
在实施例中,突起被固定到主体上,该突起包括一个内部通路,内部通路具有一端朝向所述室的开口,另一端开口于液体通道。突起还包括一个扩大的端部,阀元件包括一个外侧部分,其与扩大的端部配合来关闭液体通道。在此例中,扩大的端部和阀元件上的外侧端部都具有匹配的侧斜表面。
在实施例中,凹座耦合元件具有一个主导段,阀元件的尺寸与主导段的内部匹配。
优选地,医用剂量装置包括诸如注射器、IV瓶、IV管、粉未和/或雾化液体和/或气体吸入器、移液器、呼吸器、注射泵、插管、肠胃输送管的装置一种或多种以及这些装置的组合。优选地,药物为固体、液体或气体形式或者其的组合,这些药物对于提高生活,促进健康,治愈、治疗疾病、病症、不安,监视和/或显示身体的功能或者综合治疗和提高身体质量具有有益的特性。例如,药物可以用于IV治疗、移植、干细胞治疗肿瘤治疗、输血和/或者器官移植中。
附图说明
下面将参照附图,通过几个实例对本实用新型的几个优选例进行描述。
图1为注射器组件的透视图;
图2为图1的组件部分的剖面图;
图3和4为图1组件的剖面图,显示了两个交替操作位置;
图5为另一个注射器组件部分的部分剖面透视图;
图6和7另一个注射器组件的部分剖面透视图;
图8-12为图6显示的注射器组件的部分剖面图;
图13为另一个注射器组件的部分剖面透视图;
图14和15为图13的注射器组件的部分剖面透视图。
具体实施方式
参照附图,特别是图1,提供了一个注射器组件10,其包括注射器12和阀单元14。注射器12具有一个室20,该室容纳柱塞22形成腔24。
参照图2,所述腔具有一个出口26,阀单元14位于出口26的下游,用于将腔24与医用附件如针头30(图3和4显示)耦合。阀单元14具有一个出口32和流量控制装置。如下面描述。为了控制液体流经出口的流量,当操作耦合部分与医用附件相连时,操作流量控制装置可以打开出口,当阀单元与医用附件分离时,操作流量控制装置关闭出口,一直到再次与医用附件相连时才打开出口。
在这种情况下,室20包括一个第一凸座端部34,其与出口26相邻,阀单元14包括一个第一凹座端部36,其可以与凸座端部34相互配合。阀单元14也包括一个第二凸座端部38,用于与医用附件30耦合。
虽然在这种情况下,室20和阀单元14是相互分开的,但能够理解,可以形成一体的替代形式,例如,将第一凸座端部34和凹座端部36合并。
阀单元14具有一个通道42,用于凹座端部36和凸座端部38之间的液体输送。阀部件,以阀元件44的形式,位于阀单元14内,在第一位置(如图2所示)和第二位置(如图3所示)之间移动,在第一位置上通道是关闭的,在第二位置上通道是打开的。助推部件,以助推元件46(图2显示)的形式从阀元件44向外延伸,进入凸座端部38。当医用附件30的凹座端部与凸座端部38配合时,助推元件46耦合到阀元件44上来推动阀元件。
如图1-4的实施例中,凸座端部38具有一个外部的螺纹套50,其与内部突起52留有间隔。在这种情况下,助推元件46位于外部螺纹套50和内部突起52之间。阀元件44包括一个阀塞部54,其相对于阀座部56移动。阀元件44具有一个上端,其与凹座端部36一体形成。外壳元件58可滑动地安装在阀元件44上。在这种情况下,外部壳元件58与凸座端部38连接。阀元件44也具有一个阀通道44a,其从凹座端部36延伸到阀塞部42以和通道42相连,其以一个或多个横向开孔44b结束。
阀元件44包括一个固定凸缘60,当所述阀如图2所示在关闭的位置时,凸座端部38直接或间接靠着固定凸缘安装。相反地,当该阀如图3在打开的位置时,凸座端部38与所述的固定凸缘分离。
外壳58以向内指向的端部区域62结束,该端部区域62与凹座端部34邻接,偏置部件以压缩弹簧64的形式位于外壳内的端部区域62和固定凸缘60之间,用于将阀元件向第一位置偏置以关闭阀单元。
可替代的布置如图5显示。在这种情况下,阀单元70具有壳体72,其与凹座端部74一体形成。第一通道部76与凹座端部74相邻,第二通道部78与凸座端部80相邻。在这种情况下,阀部件包括一个阀元件82,该阀元件具有一个阀通道84,其位于第一和第二通道部76和78之间的液体通道内。在这种情况下,阀座部在第二通道部78中的90所标的位置形成。
阀元件82包括一个塞部92,其相对于第二通道部78,并在第二通道部内移动,用于配合阀座部90以关闭第二通道部78。第一通道部76包括一个从凹座端部74延伸出的管状突起94。在这种情况下,阀元件82中的阀通道84与第一和第二通道部76、78共同扩展。在这种情况下,管状突起94与阀通道84中的阀元件82滑动配合,并通过封闭件98将其密封。类似地,阀元件84在第二通道部78通过封闭件100封闭。
注射器组件10使用如下。首先,通过将凹座端部36和与其对应的第一凸座端部34配合,将阀单元14连接到注射12上。在这种情况下,第二凸座端部38与医用附件如针头30不接触,助推器46完全延伸到第二凸座端部38中,如图2显示。结果是,阀元件44被偏置到其关闭的位置,从而将阀座56与阀塞部54紧密配合。
然后,通过将针头30的凹座端部和第二凸座端部38配合,针头30与注射器接触。这样使得针头30上的凹座端部紧靠并推移助推元件46,从而使得阀元件44被向上推移(如图2所示),从而使阀塞部54从紧邻阀座56被封闭处分离,以打开阀通道。然后,将塞22向外推移以使靠近针头30尖角端部的液体吸入腔24,液体吸入是通过起始于阀座56的途径:通过通道42到横流孔44b,到阀通道44a以及通过凹座端部,最后进入腔24。然后,针头30可以移开使得助推元件46向下推移(如图2所示),从而阀塞部立即推移与阀座56紧邻,近而关闭阀。
另一装置显示为图6-12中的标号120,其具有一个主体122,该主体形成一个内室124,该内室容纳液体物质。阀组件126与该腔124液体连通,具有一个凸座耦合元件128,用于与医用附件(针头132)上的凹座耦合元件130配合,形成装置120和针头132之间的液体连通。
进行阀组件126的操作用于控制通过凸座耦合元件128的液体流量,更特别地,当凸座耦合元件128与凹座耦合元件130行进连接时,阀组件处于打开的位置,相反,当凸座耦合元件128与凹座耦合元件130分离时,阀组件处于关闭的位置。
在这种情况下,主体122和阀组件126一体形成,如图8所示。后者包括阀元件134和阀座136。阀元件134所示的位置与阀座136紧靠以封闭凸座耦合元件128,图中阀元件和阀座间留有小小的缝隙是仅仅为了说明的目的。
凸座耦合元件128包括一个内凸座部140,其具有一个内部液体通道140a,外套部142与内凸座部140之间的空间形成一个通路144,用于接收凹座耦合元件130。至少一个阀助推部,在此为三个阀助推部146(在图7中显示出两个)位于通路144,用于与凹座耦合元件130邻接,并且在凹座耦合元件130沿通路144行进中推移阀元件。在这种情况下,每个阀助推部146与阀元件134一体形成。
每个阀助推部146包括一对邻接元件150、152,其相互沿通路144间隔用于接收凹座耦合元件130,并且沿着通路144与凹座耦合元件一起移动。邻接元件152具有一个侧斜外表面152a,其设计原因下面将描述。每个助推部146相对于通路144纵向定位,邻接元件150、152沿着助推部146布置。
每个阀助推部146包括一个制动凸缘154,阀组件包括一个制动座156,当阀元件134在关闭位置时,制动座156接收制动凸缘154。在这种情况下,当制动座156在外套部142形成时,助推部146具有一个未端区域,制动凸缘154位于该未端区域。
在图10中可以看出,每个助推部146弯曲布置,以使制动凸缘154从制动座156推移出来。
参照图8,阀元件134包括一个支承板160,助推部146在支承板160上等间隔布置。支承板160具有一个中央液体通道162,该通道与室124连通,在阀元件134中具有一个流体通道163,其与中央液体通道162连通从而和室124连通。此外,液体通道163具有一个侧部163a,其搭建了液体通道163和内部凸座部的内部液体通道140a之间的通道。
装置120使用如下。阀组件在关闭位置设置阀元件,也就是说,如图8显示的,阀元件134紧靠在阀座136。在针头132上的凹座耦合元件130与通路144排列成一线,向前与凸座耦合元件128结合。在邻接元件152的侧斜引导面152a有助于在通路144嘴上的凹座耦合元件集中。利用制动座156中的制动凸缘154,凹座耦合元件130能够通过邻接元件152的最低边并一直进入通路144,直到凹座耦合元件与邻接元件150相互接触,如图9所示。如图10所示,在凹座耦合元件上的连续向内的压力转移到邻接元件150,使得邻接部146沿着通路向内移动,从而将该制动凸缘154从制动座156的制动位置中拉出,这使得邻接部146弯曲,一直到制动凸缘154从制动座156移开。在此位置上,可以看出阀元件134从阀座136中移出,从而连通了液体通道163和针头132。
参照图11,当凹座耦合元件130从通路144中移出时,该凹座耦合元件与邻接元件152接触,以使邻接部146沿通路144向外移动,这样阀元件134向阀座136移动。制动凸缘154靠近并最终进入制动座,阀组件同时关闭。这样,装置120并没有利用如前面实施例所述的被偏置到关闭位置的阀元件,而是进一步依靠凹座耦合元件130从凸座耦合元件128移出时的推移,将阀组推到关闭位置。
另一个装置为图13-15的标号170显示,该装置具有一个主体172,该主体内有一个室174,用以容纳液体物质。阀组件176与室174液体连通,并且该阀组件在针头181上,该阀组件具有一个凸座耦合元件178,用来与凹座耦合元件180配合,在医用剂量装置170和针头181之间形成连通。
进行阀组件176操作用来控制通过凸座耦合元件的液体流量,特别是当阀组件与凹座耦合元件180行进连接时,助推或打开凸座耦合元件178,反之,当阀组件与凹座耦合元件180分离时,关闭凸座耦合元件178。
在这种情况下,凸座耦合元件178包括一个突起182,其固定在主体172上。套部184环绕该突起182,该套部也固定在主体172上。套部184和突起182之间的空间形成一个通路186以接收凹座耦合元件180。
阀元件190相对于突起182移动,它们之间形成一个液体通道192,并由内部封闭件193封闭。突起182包括一个内部通道194,其具有一个端194a向室174打开,另一端194b向液体通道192打开。
参照图14和15,突起包括一个扩大的端部198,阀元件190具有一个外端部200,用以与扩大的端部198配合来封闭液体通道192。在这种情况下,通路186在内壁202结束,在通路186中阀元件190和内壁202之间的弹簧203的作用下,阀元件190相对于内壁202移动,用以向扩大端部198的扩大位置偏置阀元件190的外端部200。
如图15所示,扩大的端部198和阀元件190的外端部200分别具有匹配的侧斜表面198a和200a。
进行阀元件190的操作与凹座耦合元件180配合,并沿着通路186与凹座耦合元件180一起行进。在这种情况下,凹座耦合元件180具有一个主导段180a,阀元件190的外端部200的尺寸与主导段180a相匹配。
与图6所示的装置120相对照,装置170具有一个阀元件190,其被偏置到关闭位置。当凹座耦合元件180通入突起182时,凹座耦合元件180的主导段180a压在阀元件190的外端部200上。凹座耦合元件180连续地向内推移进入通道186,这使得阀元件相对于突起182移动,直到配合的侧斜面198a、202a分离从而向针头打开液体通道192为止。当凹座和凸座耦合元件紧密配合时,液体的连通是充分行进的。当凹座耦合元件180从凸座耦合元件178移开时,在偏置弹簧203的作用下,阀元件190返回其紧靠突起198的关闭位置从而关闭凸座耦合元件。
虽然本实用新型是以优选实施例来描述的,但本实用新型并不局限于优选的实施例。作为对照,本实用新型意图覆盖在所附权利要求的精神和范围内的各种改进及等同变换。所以下面的权利要求的范围按最宽的解释来提出以罗列所有这些改进和等同结构和功能。
阀单元可以和其它药液输送装置一起使用,例如Iv管、尿液管、输液泵等。阀单元也可以用在注射器和其它医用装置上,这些装置并不利用常用的凹凸座耦合布置。
Claims (11)
1.一种医用剂量装置,其特征在于包括:
具有一个室的主体;
阀组件,与所述室液体连通,该阀组件具有:
一个凸座耦合元件,用于与医用附件上的凹座耦合元件配合;
流量控制装置,用来控制流经凸座耦合元件的液体流量;
助推部件,用于流量控制装置。
2.如权利要求1所述的医用剂量装置,其特征在于,凸座耦合元件包括:
一个内部凸座部和一个外套部,它们之间的空间形成一个通路,用于接收凹座耦合元件;
流量控制装置包括至少一个阀助推部,其位于所述的通路中。
3.如权利要求2所述的医用剂量装置,其特征在于,阀组件包括一个阀元件和一个阀座,其中,阀元件与阀座相对着,用于关闭凸座耦合元件。
4、如权利要求3所述的医用剂量装置,其特征在于,阀助推部包括一对邻接元件,该邻接元件沿着通路间隔布置。
5.如权利要求4所述的医用剂量装置,其特征在于,阀助推部包括一个制动凸缘,阀组件包括一个制动座。
6.如权利要求5所述的医用剂量装置,其特征在于,阀助推部有一个远侧末端区,制动凸缘位于远侧末端相邻的位置。
7.如权利要求6所述的医用剂量装置,其特征在于,制动座在外套部中。
8.如权利要求7所述的医用剂量装置,其特征在于,阀助推部是弯曲的。
9.如权利要求8所述的医用剂量装置,其特征在于,制动凸缘与其中的一个邻接元件相邻。
10.如权利要求6-9中任一所述的医用剂量装置,其特征在于,阀助推部相对于通路纵向定位,邻接元件沿助推部布置。
11.如权利要求10所述的医用剂量装置,其特征在于,阀元件包括一个支承板和多个在支承板上等间隔分布的助推部,每个助推部具有第一和第二邻接元件。
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