CN1117236C - 阀组件 - Google Patents
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- CN1117236C CN1117236C CN96194568A CN96194568A CN1117236C CN 1117236 C CN1117236 C CN 1117236C CN 96194568 A CN96194568 A CN 96194568A CN 96194568 A CN96194568 A CN 96194568A CN 1117236 C CN1117236 C CN 1117236C
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
- F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/1401—Check valves with flexible valve members having a plurality of independent valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0493—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a spring other than a helicoidal spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
- F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
- F16K17/162—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs of the non reverse-buckling-type
- F16K17/1626—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs of the non reverse-buckling-type with additional cutting means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- 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
- A61M5/1407—Infusion of two or more substances
- A61M5/1408—Infusion of two or more substances in parallel, e.g. manifolds, sequencing valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7838—Plural
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7879—Resilient material valve
- Y10T137/788—Having expansible port
- Y10T137/7881—Apertured plate
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Check Valves (AREA)
- Magnetically Actuated Valves (AREA)
- Valve Housings (AREA)
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
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Abstract
一种阀组件(12),它包括一个液体入口(16)、一个液体出口(18)和一个弹性阀构件隔膜(20),该隔膜(20)安放在入口(16)和出口(18)之间并将它们隔开,该隔膜具有一个或多个孔(22)。当隔膜(20)两侧没有压差时,一个或多个孔(22)的孔壁塌缩并且没有液体能通过该孔,而当隔膜(20)两侧的压差超过某一临阈级时,隔膜(20)伸展开并使一个或多个孔(22)打开,以便让液体从入口(16)流到出口(18)。
Description
发明背景
本发明涉及用于液体传输的阀组件。
发明概述
按照本发明,提供了一种用于液体传输的阀组件,该阀组件包括一个液体入口、一个液体出口和一个安放在入口和出口之间的阀构件;该阀构件包括一个插在入口和出口之间的弹性隔膜,此弹性隔膜具有一个或多个孔;在隔膜的两侧没有压差的情况下,该一个或多个孔的孔壁塌缩,并且没有液体能从孔中通过,而在某一临阈级时,隔膜伸展开使一个或多个孔打开,以便让液体从隔膜的一侧流到另一侧。
本发明的一个技术解决方案在于,这种用于液体传输的阀组件包括:一个具有液体入口、液体出口和中间液体孔口的阀壳;以及位于阀壳中的一对阀构件,第一阀构件位于液体入口和中间液体孔口之间,第二阀构件位于中间液体孔口与液体出口之间,每个阀构件包括一个其上具有一个或多个通孔的弹性膜片,当弹性膜片在作用于其上的预定临阈压力下产生变形时,该通孔将打开以便液体流过弹性膜片,但在其它情况下该通孔阻止液体的流动,每个弹性膜片仅沿一个流动方向变形,从而液体不会流出液体入口或流入液体出口,以及所述阀壳包括一对穿孔的支承板,每个支承板与弹性膜片相连以防止弹性膜片沿与其所述流动方向相反的流动方向产生充分的变形。
按照本发明的一个实施例,该阀是只能沿着一个方向进行液体传输的单向式阀。
按照本发明的另一个实施例,阀组件包括一个辅助构件,因而隔膜可以被手工伸展,以使一个或多个孔打开。
压力阈值由弹性构件的厚度和表面积及所述一个或多个孔的尺寸决定。
按照本发明的又一个实施例,阀组件包括一个冲孔构件,以用于给隔膜冲孔,以便在其中形成至少一个孔,该至少一个孔属于上述的那种孔。
本发明另一种技术解决方案在于,这种用于液体传输的阀组件包括:一个具有液体入口和液体出口的阀壳,位于液体入口和液体出口之间的阀构件,该阀构件包括一弹性膜片;以及一个可移动的冲孔构件,用于在该组件上施加定向力时能刺穿膜片以便在该膜片上形成一个或多个孔,当弹性膜片受到作用于其上的预定临阈压力时,这些孔打开以便液体流过弹性膜片,但在其它情况下该孔阻止液体的流动,该弹性膜片仅沿一个流动方向变形,使得液体不会流出液体入口或流入液体出口,以及所述阀壳包括一对穿孔的支承板,每个支承板与弹性膜片相连以防止弹性膜片沿与其所述流动方向相反的流动方向产生充分的变形。
现在在下面的非限制性的具体实施例中特别参照附图来说明本发明。
附图简述
图1是本发明的阀组件的纵向剖面示意图;
图2是图1中圆形区域的放大图;
图3示出在施加压力下图1中的阀组件;
图4是图3中圆形区域的放大图;
图5是按照本发明一个实施例的阀组件的纵向剖面图,在该阀组件中液体可以沿两个方向上传输;
图6是按照本发明另一实施例的阀的纵向剖面图,在该阀中液体只能沿着一个方向传输;
图7是按照本发明另一个实施例的阀的纵向剖面图,该阀包括能使隔膜手动变形以便能伸展且打开这些孔的装置;
图8是在施加手动力之后图7所示阀组件的纵向剖面图;
图9是按照本发明另一实施例的阀组件的纵向剖面图,该阀组件包括一个冲孔的隔膜;和
图10是按照本发明又一个实施例的阀组件的纵向剖面图,该阀组件构成一个两通阀。
优选实施例详述
首先参看图1-4,图1-4是按照本发明的一个阀组件的示意图。阀组件12包括阀体14,该阀体14具有液体入口16和液体出口18。(正如可以理解的那样,与这个实施例有关的术语“出口”和“入口”的使用实际上只是为了方便起见。这里阀是对称的,并且入口和出口的作用可以颠倒过来)。安放在入口16和出口18之间并将二者隔开的是一个弹性隔膜20,该隔膜20用例如硅酮橡胶制造。正如在图2中所看到的,在隔膜20内有一个孔22,所述隔膜20处在隔膜的两侧之间没有压差的位置,孔壁塌缩并且孔全部关闭。
当通过入口16施加液体压力(在图3中用箭头示意表示)时,隔膜20变形并伸展开,因此开口扩大,形成一个使液体流过的开孔,如图4中可以看到的。
现在参看图5,图5示出按照本发明一个实施例的阀组件30。阀组件包括阀壳32,阀壳32由两个相互配合的构件34和36组成。构件34限定了一个流体入口38,而构件36限定了一个流体出口40,在这种情况下出口40是一个路厄型(luer-type)连接器。隔膜42安放在入口和出口之间,并通过构件34和36的并置部分固定在适当位置。
隔膜42具有一个孔,该孔在图5所示的静止位置是关闭的。当施加液体压力时,隔膜就变形(用虚线表示),孔44打开以使流体流动。与图1-4的阀组件情况一样,原则上液体可沿着任一个方向流动,这取决于施加流体的方向(这里又是为了方便起见而将部件38和40分别定义为“入口”和“出口”,虽然从入口38到出口40的流动方向是优选的方向)。
现在参看图6,图6示出按照本发明另一实施例的阀组件50,在该阀组件50中只允许液体沿着一个方向流动。阀组件50包括一个阀壳52,阀壳52由第一构件54和第二构件56组成,它们分别限定了入口58和出口60,该出口60是一个路厄型连接器。安放在阀壳52内并固定在构件54和56的并置部分之间的是一个弹性隔膜62。正如所看到的那样,构件54具有一个壁部分64,它与隔膜62保持平行,因而隔膜62只能在与该壁部分64相反的方向(朝着出口60的方向)上变形。当从入口58(用箭头表示)施加的液体压力超过某一阈值时,隔膜就变形(该变形的构件用虚线表示),并且隔膜66中一个预先存在的孔向上打开,然后让流体在入口58和出口60之间流动。
现在参看图7和图8,图7和图8示出按照另一实施例的阀组件70。这个实施例与图6所示实施例的不同之处在于第一构件74,而所有与图6中标号相同的其它构件实际上执行相同的功能。构件74具有一个中心部分80,该中心部分80限定了一个入口82和一个环形凸出部84,此环形凸出部84位于最接近隔膜62处。中心部分80通过一个中间的挠性肩部88连接到构件74的周边86上,该挠性肩部88能在中心部分82和周边86之间作相对轴向运动。
当中心部分贴着周边移动以便压在构件62上时,正如在图8中可以看到的,隔膜就变形且孔66打开并使液体流动,这个实施例的组件基本上以与图6中的构形相同的方式操作,亦即它只允许单方向的液体流动。
现在参看图9,图9示出按照本发明另一实施例的阀组件90。这个实施例是图5中所示实施例的改进,并且所有相同的元件都用同样的标号给出。两个实施例的不同之处在于组件90具有一个冲孔构件92并且这个实施例中的肩部94具有一些挠性。因而,构件34的中心部分96可以轻微地压向隔膜42,然后冲孔构件92将在那个隔膜上冲一个孔。该孔在静止时将密封,而当在隔膜的两侧施加压力时将打开。
可以理解,冲孔构件92可以具有一个使液体经其流动的腔。或者,液体可以流经围绕冲孔构件的空间98。
下面参照附图中的图10,图10示出一个两通阀,它总体用100表示。此两通阀由两个阀102和104构造而成,在此具体的实施例中,阀102和104与上述图6中所示的阀相似。
第一阀102是一个单向阀,只允许沿着箭头106的方向流动,而第二阀104是一个只允许沿着箭头108的方向流动的单向阀。该第二阀104的流体出口110连接到第一阀102的流体入口管112上,入口管112具有一个自由端114,而阀104包括一个流体入口115。
设置成使得两通阀100具有三个操作位置。在第一操作位置,使得流体经过自由端114和入口116流入,并且正如上面关于图6的实施例所述,当液体压力超过某一阈值时,第一阀102的隔膜118变形,使得液体通过该隔膜中的一个预先存在的孔(图中未示出)并经过出口106流出。
在第二操作位置,只允许流体经过自由端114流入,而将第二阀104的隔膜120用作一个单向阀,因而流体只能通过第一阀构件102的出口106流出。
当只允许流体通过第二阀104的流体入口116流入时,出现第三操作位置,因而流体只通过自由端114流动,这主要归因于用以使隔膜118变形所要求的高压。
然而,图10所示阀组件的一个具体应用是例如在一个病人喂食系统中,其中将一根喂食管连接到导向病人的第一阀102的出口上。将第一液体营养品容器(图中未示出)经过一个泵(正如本身已知而并未示出的)连接到第二阀组件104的入口116上。在第一操作方式时,泵从第二液体容器中抽吸液体进入入口管112,因而液体受压通过第一阀组件102但不通过第二阀组件104。在第二操作方式时,泵以相反的方向工作,因而将第一液体容器中已计好量的液体吸入通向第二液体容器的管道中,然后泵再反向操作,因而如上所述通过第一阀组件102将所述已计好量的液体加压。以这种方式,可以将来自两个容器中任一个容器的液体如营养剂和水或冲洗剂交替地供应给病人。
在图10中还能看到的是凸出部122以及从阀组件的后壁124伸出的环形凸出部126,以用于分别保证隔膜118和120不固定到阀组件102和104的后壁124上,并保证弹性隔膜不会沿相反方向(也就是沿朝着阀入口的方向)上变形,以便确保流体只沿着一个方向流动。
Claims (7)
1.一种用于液体传输的阀组件,该阀组件包括:
一个具有液体入口、液体出口和中间液体孔口的阀壳;以及
位于阀壳中的一对阀构件,第一阀构件位于液体入口和中间液体孔口之间,第二阀构件位于中间液体孔口与液体出口之间,每个阀构件包括一个其上具有一个或多个通孔的弹性膜片,当弹性膜片在作用于其上的预定临阈压力下产生变形时,该通孔将打开以便液体流过弹性膜片,但在其它情况下该通孔阻止液体的流动,每个弹性膜片仅沿一个流动方向变形,从而液体不会流出液体入口或流入液体出口,以及所述阀壳包括一对穿孔的支承板,每个支承板与弹性膜片相连以防止弹性膜片沿与其所述流动方向相反的流动方向产生充分的变形。
2.一种按照权利要求1所述的阀组件,其特征在于,所述阀壳还包括一个与弹性膜片相连的辅助构件,该辅助构件移动以便与弹性膜片接合并使之变形,从而使液体流过弹性膜片。
3.一种按照权利要求1或2所述的阀组件,其特征在于,任何弹性膜片的临阈压力是由它的厚度和表面积及一个或多个孔的尺寸决定的。
4.一种用于液体传输的阀组件,该阀组件包括:
一个具有液体入口和液体出口的阀壳,
位于液体入口和液体出口之间的阀构件,该阀构件包括一弹性膜片;以及
一个可移动的冲孔构件,用于在该组件上施加定向力时能刺穿膜片以便在该膜片上形成一个或多个孔,当弹性膜片受到作用于其上的预定临阈压力时,这些孔打开以便液体流过弹性膜片,但在其它情况下该孔阻止液体的流动,该弹性膜片仅沿一个流动方向变形,使得液体不会流出液体入口或流入液体出口,以及所述阀壳包括一对穿孔的支承板,每个支承板与弹性膜片相连以防止弹性膜片沿与其所述流动方向相反的流动方向产生充分的变形。
5.一种按照权利要求4所述的阀组件,其特征在于,所述阀壳包括一个与弹性膜片相连的穿孔的支承板,以防止弹性膜片沿与其流动方向相反的流动方向产生充分的变形。
6.一种按照权利要求4或5所述的阀组件,其特征在于,所述阀壳还包括一个位于液体入口和液体出口之间的中间液体孔口,所述阀构件位于液体入口和中间液体孔口之间。
7.一种按照权利要求6所述的阀组件,其特征在于,它还包括一个位于中间液体孔口和液体出口之间的第二阀构件,该阀构件包括其上具有一个或多个通孔的弹性膜片,当弹性膜片在作用于其上的预定临阈压力下产生变形时,该通孔将打开以便液体流过弹性膜片,但在其它情况下该通孔阻止液体的流动,该弹性膜片仅沿一个流动方向变形,从而液体不会流出中间液体孔口或流入液体出口。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL11419095A IL114190A (en) | 1995-06-16 | 1995-06-16 | Valve assembly |
IL114190 | 1995-06-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1189208A CN1189208A (zh) | 1998-07-29 |
CN1117236C true CN1117236C (zh) | 2003-08-06 |
Family
ID=11067628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN96194568A Expired - Fee Related CN1117236C (zh) | 1995-06-16 | 1996-06-07 | 阀组件 |
Country Status (13)
Country | Link |
---|---|
US (1) | US6182698B1 (zh) |
EP (1) | EP0830533B1 (zh) |
JP (1) | JP3756189B2 (zh) |
CN (1) | CN1117236C (zh) |
AT (1) | ATE279674T1 (zh) |
AU (1) | AU707529B2 (zh) |
CA (1) | CA2219499C (zh) |
DE (1) | DE69633622T2 (zh) |
DK (1) | DK0830533T3 (zh) |
ES (1) | ES2229283T3 (zh) |
IL (2) | IL125881A (zh) |
PT (1) | PT830533E (zh) |
WO (1) | WO1997000399A2 (zh) |
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- 1996-06-07 US US08/930,073 patent/US6182698B1/en not_active Expired - Fee Related
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- 1996-06-07 CN CN96194568A patent/CN1117236C/zh not_active Expired - Fee Related
- 1996-06-07 WO PCT/IB1996/001007 patent/WO1997000399A2/en active IP Right Grant
- 1996-06-07 EP EP96930314A patent/EP0830533B1/en not_active Expired - Lifetime
- 1996-06-07 AU AU69412/96A patent/AU707529B2/en not_active Ceased
- 1996-06-07 CA CA002219499A patent/CA2219499C/en not_active Expired - Fee Related
- 1996-06-07 DK DK96930314T patent/DK0830533T3/da active
- 1996-06-07 JP JP50236097A patent/JP3756189B2/ja not_active Expired - Fee Related
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- 1996-06-07 AT AT96930314T patent/ATE279674T1/de active
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Also Published As
Publication number | Publication date |
---|---|
JPH11508346A (ja) | 1999-07-21 |
AU707529B2 (en) | 1999-07-15 |
US6182698B1 (en) | 2001-02-06 |
EP0830533B1 (en) | 2004-10-13 |
EP0830533A4 (en) | 1998-07-22 |
WO1997000399A2 (en) | 1997-01-03 |
IL114190A (en) | 1999-08-17 |
IL125881A (en) | 2001-04-30 |
PT830533E (pt) | 2005-01-31 |
WO1997000399A3 (en) | 1997-06-12 |
EP0830533A2 (en) | 1998-03-25 |
DE69633622T2 (de) | 2005-11-03 |
DK0830533T3 (da) | 2004-12-20 |
CA2219499A1 (en) | 1997-01-03 |
IL114190A0 (en) | 1995-10-31 |
CA2219499C (en) | 2006-05-30 |
JP3756189B2 (ja) | 2006-03-15 |
AU6941296A (en) | 1997-01-15 |
DE69633622D1 (de) | 2004-11-18 |
ES2229283T3 (es) | 2005-04-16 |
CN1189208A (zh) | 1998-07-29 |
ATE279674T1 (de) | 2004-10-15 |
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