WO2008125007A1 - Transfusion exhaust valve - Google Patents

Transfusion exhaust valve Download PDF

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Publication number
WO2008125007A1
WO2008125007A1 PCT/CN2008/000704 CN2008000704W WO2008125007A1 WO 2008125007 A1 WO2008125007 A1 WO 2008125007A1 CN 2008000704 W CN2008000704 W CN 2008000704W WO 2008125007 A1 WO2008125007 A1 WO 2008125007A1
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WO
WIPO (PCT)
Prior art keywords
passage
infusion
radial
valve body
valve
Prior art date
Application number
PCT/CN2008/000704
Other languages
French (fr)
Chinese (zh)
Inventor
Xingming Zhang
Original Assignee
Xingming Zhang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xingming Zhang filed Critical Xingming Zhang
Publication of WO2008125007A1 publication Critical patent/WO2008125007A1/en

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Classifications

    • 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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
    • F16K11/0856—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in more than one plane perpendicular to the axis of the plug
    • 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
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/75—General characteristics of the apparatus with filters
    • A61M2205/7536—General characteristics of the apparatus with filters allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
    • 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
    • A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body

Definitions

  • the invention relates to the technical field of medical instruments, and in particular relates to an infusion venting width. Background technique
  • Medical infusion sets are generally used for intravenous injection in patients.
  • the infusion bottle is placed high, one end of the infusion set is inserted into the infusion bottle, and the other end is inserted into the vein of the patient, and the drug solution is injected into the vein circulation of the patient.
  • the infusion set tube often contains gas in addition to the liquid. In the case of infusion, sometimes the air in the infusion set is not exhausted. Sometimes, before the intravenous infusion, the intravenous push of the liquid is required. After the push is completed, the infusion set needs to be connected. Return the infusion tube, at this time the air will be mixed in the infusion tube; or intravenous infusion before intravenous infusion, blood is completed, the infusion set is returned to the infusion tube, there will be mixed air; air injection into the patient's vein is very harmful, right People's health is very unfavorable. Utility model content
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the existing infusion set to easily mix air, and to provide an infusion vent valve.
  • An infusion vent valve includes:
  • valve body Provided on the valve body, connecting the upper and lower interfaces of the infusion set, and
  • valve body Provided on the valve body to discharge an air outlet of the air in the infusion set line;
  • the utility model further includes a valve core, wherein the valve core is rotatably mounted in the valve body, and a first radial passage, a second radial passage and a third radial passage which are mutually conductive are arranged in the valve core a channel and an axial passage; rotating the valve core such that the axial passage communicates with the air outlet on the wide body in an exhaust state to exclude the infusion tube line air.
  • a valve center knob is fixedly connected to one end of the valve core.
  • the first radial passage and the second radial passage are in line arrangement with each other to form an infusion channel;
  • the third radial passage is an exhaust passage, vertically communicating with the first radial passage and the radial direction a passage;
  • the axial passage communicates with the intersection of the first radial passage, the second radial passage, and the third radial passage.
  • the valve core is disposed at a position of the air outlet at the valve body, and is provided with a connecting passage connecting the axial passage and the air outlet, the connecting passage and the third diameter
  • the projection of the channel on the radial section of the valve core is a straight line.
  • the upper interface of the valve body is a slot type interface
  • the lower interface is a plug type interface
  • the invention has the advantages that the air bubbles generated during the infusion process can be effectively avoided, the patient's infusion safety during the infusion process is ensured, the structure is simple, the installation is convenient, and the use is convenient.
  • Fig. 1 is a schematic view showing the structure of the infusion and exhaust valve according to the present invention in an infusion state.
  • FIG. 2 is a schematic view showing the structure of the infusion and exhaust valve according to the present invention in an exhaust state.
  • Fig. 3 is a schematic cross-sectional view taken along line A-A of Fig. 1.
  • Figure 4 is a schematic cross-sectional view taken along line B-B of Figure 1.
  • Fig. 5 is a schematic view showing the flow direction of the liquid in the infusion state when the infusion liquid is wide in the infusion state.
  • Fig. 6 is a schematic view showing the flow direction of the gas when the infusion and exhaust valve according to the present invention is in an exhaust state.
  • FIG. 7 is a schematic view showing the structure of Embodiment 2 of the present invention. detailed description
  • an infusion and exhaust valve includes a valve body 1.
  • the upper and lower interfaces 2 and 3 connected to the infusion set are disposed on the valve body 1, and the valve body 1 is further provided with a discharge.
  • the interface 12 facilitates the insertion of the upper and lower ports 2, 3 of the valve body 1 into the infusion set.
  • a valve body 6 is mounted on the valve body 1, and a valve core knob 5 is fixedly connected to one end of the valve body 6 to facilitate the rotation of the valve body 6.
  • a first radial passage 62, a second radial passage 63, a third radial passage 64 and an axial passage 61 that are electrically connected to each other are disposed in the valve core 6, wherein the first radial passage 62 and the second radial passage 63 is an infusion channel, and the two are arranged in a straight line to facilitate the smooth flow of the infusion liquid.
  • the third radial passage 64 is an exhaust passage perpendicular to the first radial passage 62 and the second radial passage 63, one end of the axial passage 61 and the first radial passage 62 and the second radial passage that are electrically connected to each other 63.
  • the intersection of the third radial passage 64 communicates, and the other end of the axial passage 61 communicates with the air outlet 4 in an exhaust state.
  • a connecting passage 65 which communicates with the third radial passage 64 and the other end communicates with the outlet port 4.
  • the projection of the connecting passage 65 and the third radial passage 64 in the radial section of the broad center 6 is a straight line ⁇
  • the spool 6 is rotated to connect the first radial passage 62 and the second radial passage 63 on the spool 6 with the upper and lower interfaces 2 and 3 on the valve body 1, and the infusion liquid Smoothly flowing through the valve body 1 and the valve core 6, at this time, the third radial passage 64, that is, the exhaust passage is blocked by the valve body 1 and cannot communicate with the infusion set line, and the connection with the axial passage 61 at this time is connected.
  • the passage 65 is also blocked by the valve body 1, and the air outlet 4 cannot be connected.
  • the 90 degree knob valve knob 5 when air is mixed into the infusion set, when the exhaust is required, the 90 degree knob valve knob 5 is used, and the third radial passage 64 communicates with the upper interface 2 of the valve body 1, that is, the infusion line is connected.
  • the connecting passage 65 communicating with the axial passage 61 also communicates with the air outlet 4, and the air in the infusion tube line will enter the axial passage 61 from the third radial passage 64, that is, the exhaust passage, and then through the connecting passage 65.
  • the air outlet 4 is discharged.
  • the first radial passage 62 and the second radial passage 63 that is, the infusion passage are blocked by the valve body 1, and the infusion set line cannot be connected.
  • the invention can effectively avoid the air bubbles generated during the infusion process, ensures the patient's infusion safety during the infusion process, has a simple structure, is convenient to install, and is convenient to use.
  • each channel of the present invention can be set according to actual conditions. '
  • Embodiment 2 Referring to FIG. 7, the upper interface 2 of the infusion and exhaust valve body 1 of the present invention is provided with an infusion line 11', and the climbing end of the infusion line 11' is provided with a stepped interface 111', and the lower interface 3 is provided with an infusion line connector 12', and the stepped interface 111' is used to access the infusion line of the infusion.
  • the infusion line connector 12' of the lower interface 3 is connected to the downstream line of the infusion, and the infusion and venting operation can be performed. The rest are the same as in the first embodiment.

Abstract

A transfusion exhaust valve includes a valve body (1), upper and lower connectors (2, 3) provided on said valve body (1) to connect transfusion device pipes, an exhaust port (4) provided on said valve body (1) to discharge air in said transfusion device pipes, and a valve core (6). Said valve core (6) is rotatablely mounted in said valve body (1), and in said valve core (6) is provided a first radial passage (62), a second radial passage (63), a third radial passage (64) and an axial passage (61) which are communicated with each other. Rotating said valve core (6), said axial passage (61) is made communicate with said exhaust port (4) on said valve body (1) when said axial passage (61) discharges air.

Description

输液排气阀 技术领域  Infusion vent valve
本发明涉及医疗器械技术领域， 具体的来说涉及一种输液排气阔。 背景技术  The invention relates to the technical field of medical instruments, and in particular relates to an infusion venting width. Background technique
医用输液器， 一般用于给患者静脉注射用。 一般使用时， 输液瓶高置， 输液器一端插入输液瓶中， 另一端插入患者体内静脉， 将药液注入患者体内 的静脉循环。  Medical infusion sets are generally used for intravenous injection in patients. In general use, the infusion bottle is placed high, one end of the infusion set is inserted into the infusion bottle, and the other end is inserted into the vein of the patient, and the drug solution is injected into the vein circulation of the patient.
输液开始时， 输液器管中除液体之外往往含有气体， 在输液时， 有时输 液器内空气未排尽， 有时在静脉输液前， 需要静脉推射药液， 推射完毕需要 将输液器接回输液管， 此时输液管内会混有空气； 或者静脉输液前需要静脉 抽血， 抽血完毕， 输液器接回输液管， 也会混有空气； 空气注入患者静脉内 是非常有害的， 对人的健康十分不利。 实用新型内容  At the beginning of the infusion, the infusion set tube often contains gas in addition to the liquid. In the case of infusion, sometimes the air in the infusion set is not exhausted. Sometimes, before the intravenous infusion, the intravenous push of the liquid is required. After the push is completed, the infusion set needs to be connected. Return the infusion tube, at this time the air will be mixed in the infusion tube; or intravenous infusion before intravenous infusion, blood is completed, the infusion set is returned to the infusion tube, there will be mixed air; air injection into the patient's vein is very harmful, right People's health is very unfavorable. Utility model content
本发明所要解决的技术问题在于， 克服现有输液器中易混入空气的缺点， 而提供一种输液排气阀。  The technical problem to be solved by the present invention is to overcome the shortcomings of the existing infusion set to easily mix air, and to provide an infusion vent valve.
为了解决上述问题， 本发明所采用的技术方案是这样的： .  In order to solve the above problems, the technical solution adopted by the present invention is as follows:
一种输液排气阀， 包括：  An infusion vent valve includes:
一阀体；  a valve body;
设置在所述的阀体上， 连接输液器管路的上、 下接口， 以及  Provided on the valve body, connecting the upper and lower interfaces of the infusion set, and
设置在所述的阀体上， 排出所述的输液器管路内空气的出气口； 其特征 在于，  Provided on the valve body to discharge an air outlet of the air in the infusion set line; wherein,
还包括一阀芯， 所述的阀心可旋转地安装于所述的阀体内， 在所述的阀 心内设置有互相导通的第一径向通道、 第二径向通道、 第三径向通道和轴向 通道； 旋转所述的阀芯， 使所述的轴向通道在排气状态下连通所述的阔体上 的所述的出气口， 以排除所述的输液器管路内的空气。  The utility model further includes a valve core, wherein the valve core is rotatably mounted in the valve body, and a first radial passage, a second radial passage and a third radial passage which are mutually conductive are arranged in the valve core a channel and an axial passage; rotating the valve core such that the axial passage communicates with the air outlet on the wide body in an exhaust state to exclude the infusion tube line air.
为了方便旋转所述的阀芯， 在所述的阀心一端固定连接有一阀心旋钮。 所述第一径向通道和第二径向通道成直线布置相互连通， 构成输液通道; 所述第三径向通道为排气通道， 垂直连通于所述的第一径向通道和第 径向 通道； 所述的轴向通道连通于所述的第一径向通道、 第二径向通道、 第三径 向通道的交汇处。 In order to facilitate the rotation of the valve core, a valve center knob is fixedly connected to one end of the valve core. The first radial passage and the second radial passage are in line arrangement with each other to form an infusion channel; the third radial passage is an exhaust passage, vertically communicating with the first radial passage and the radial direction a passage; the axial passage communicates with the intersection of the first radial passage, the second radial passage, and the third radial passage.
所述的阀心在位于所述的阀体上的所述的出气口位置处， 设置有一连接 所述的轴向通道与所述的出气口的连接通道， 所述的连接通道与第三径向通 道在所述的阀心的径向截面上的投影为一直线。  The valve core is disposed at a position of the air outlet at the valve body, and is provided with a connecting passage connecting the axial passage and the air outlet, the connecting passage and the third diameter The projection of the channel on the radial section of the valve core is a straight line.
为了方便所述的阀体连接所述的输液器管路， 所述阀体的上接口为插槽 式接口， 所述的下接口为插头式接口。  In order to facilitate the connection of the valve body to the infusion set, the upper interface of the valve body is a slot type interface, and the lower interface is a plug type interface.
有益效果， 本发明可以有效的避免输液过程中产生的气泡， 保证了输液 过程中患者的输液安全， 结构简单， 安装方便， 使用便捷。 附图说明  The invention has the advantages that the air bubbles generated during the infusion process can be effectively avoided, the patient's infusion safety during the infusion process is ensured, the structure is simple, the installation is convenient, and the use is convenient. DRAWINGS
下面结合附图和具体实施方式来详细说明本发明；  The invention will be described in detail below with reference to the accompanying drawings and specific embodiments;
图 1为本发明所述的输液排气阀处于输液状态时的结构示意图。  Fig. 1 is a schematic view showing the structure of the infusion and exhaust valve according to the present invention in an infusion state.
图 2为本发明所述的输液排气阀处于排气状态时的结构示意图。  2 is a schematic view showing the structure of the infusion and exhaust valve according to the present invention in an exhaust state.
图 3为图 1的 A-A剖示示意图。  Fig. 3 is a schematic cross-sectional view taken along line A-A of Fig. 1.
图 4为图 1的 B-B剖示示意图。  Figure 4 is a schematic cross-sectional view taken along line B-B of Figure 1.
图 5为本发明所述的输液排气阔处于输液状态时液体流向示意图。  Fig. 5 is a schematic view showing the flow direction of the liquid in the infusion state when the infusion liquid is wide in the infusion state.
图 6为本发明所述的输液排气阀处于排气状态时气体流向示意图。  Fig. 6 is a schematic view showing the flow direction of the gas when the infusion and exhaust valve according to the present invention is in an exhaust state.
图 7为本发明实施例 2的结构示意图。 具体实施方式  Figure 7 is a schematic view showing the structure of Embodiment 2 of the present invention. detailed description
为了使本发明实现的技术手段、 创作特征、 达成目的与功效易于明白了 解， 下面结合具体图示， 进一步阐述本发明。  In order to make the technical means, the authoring features, the achievement of the object and the effect of the present invention easy to understand, the present invention will be further described below in conjunction with the specific drawings.
实施例 1  Example 1
参看图 1一图 4， 一种输液排气阀， 包括阀体 1， 在阀体 1上设置有连接 输液器管路的上、 下接口 2、 3， 同时在阀体 1上还设置有排出输液器管路内 空气的出气口 4， 其中上接口 2连接一插槽式接口 11， 下接口 3连接一插头 式接口 12, 这样方便将阀体 1上的上、 下接口 2、 3接入到输液器管路中。 在阀体 1安装有可旋转的阀心 6， 阀芯 6的一端固定连接一阀心旋钮 5， 以方便旋转阀芯 6。 在阀心 6内设置有互相导通的第一径向通道 62、 第二径 向通道 63、 第三径向通道 64和轴向通道 61， 其中第一径向通道 62和第二径 向通道 63为输液通道， 两者成直线布置， 以方便输液液体顺畅地流过。 第三 径向通道 64为排气通道， 垂直于第一径向通道 62和第二径向通道 63， 轴向 通道 61的一端与互相导通的第一径向通道 62、 第二径向通道 63、 第三径向 通道 64交汇处连通， 轴向通道 61的另一端在在排气状态下连通出气口 4。 Referring to FIG. 1 to FIG. 4, an infusion and exhaust valve includes a valve body 1. The upper and lower interfaces 2 and 3 connected to the infusion set are disposed on the valve body 1, and the valve body 1 is further provided with a discharge. The air outlet 4 of the air in the infusion set line, wherein the upper interface 2 is connected to a slot interface 11 and the lower interface 3 is connected to a plug The interface 12 facilitates the insertion of the upper and lower ports 2, 3 of the valve body 1 into the infusion set. A valve body 6 is mounted on the valve body 1, and a valve core knob 5 is fixedly connected to one end of the valve body 6 to facilitate the rotation of the valve body 6. A first radial passage 62, a second radial passage 63, a third radial passage 64 and an axial passage 61 that are electrically connected to each other are disposed in the valve core 6, wherein the first radial passage 62 and the second radial passage 63 is an infusion channel, and the two are arranged in a straight line to facilitate the smooth flow of the infusion liquid. The third radial passage 64 is an exhaust passage perpendicular to the first radial passage 62 and the second radial passage 63, one end of the axial passage 61 and the first radial passage 62 and the second radial passage that are electrically connected to each other 63. The intersection of the third radial passage 64 communicates, and the other end of the axial passage 61 communicates with the air outlet 4 in an exhaust state.
在阀芯 6内还设置有连接通道 65，该连接通道 65—端连通第三径向通道 64, 另一端连通出气口 4。该连接通道 65与第三径向通道 64在阔心 6的径向 截面上的投影为一直线 <  Also provided in the spool 6 is a connecting passage 65 which communicates with the third radial passage 64 and the other end communicates with the outlet port 4. The projection of the connecting passage 65 and the third radial passage 64 in the radial section of the broad center 6 is a straight line <
参看图 5， 当输液进行时， 转动阀芯 6， 使阀芯 6上的第一径向通道 62、 第二径向通道 63与阀体 1上的上、 下接口 2、 3连通， 输液液体顺畅的从阀 体 1及阀芯 6内流过， 此时第三径向通道 64， 即排气通道被阀体 1堵住无法 连通输液器管路， 此时与轴向通道 61连通的连接通道 65也被阀体 1堵住， 无法连接出气口 4。  Referring to FIG. 5, when the infusion is performed, the spool 6 is rotated to connect the first radial passage 62 and the second radial passage 63 on the spool 6 with the upper and lower interfaces 2 and 3 on the valve body 1, and the infusion liquid Smoothly flowing through the valve body 1 and the valve core 6, at this time, the third radial passage 64, that is, the exhaust passage is blocked by the valve body 1 and cannot communicate with the infusion set line, and the connection with the axial passage 61 at this time is connected. The passage 65 is also blocked by the valve body 1, and the air outlet 4 cannot be connected.
参看图 6，当输液器管路中混入空气，需要排气时， 90度旋钮阀心旋钮 5， 此时第三径向通道 64连通阀体 1的上接口 2， 即与输液器管路连通， 此时与 轴向通道 61连通的连接通道 65也连通出气口 4，输液器管路中的空气将由第 三径向通道 64， 即排气通道进入轴向通道 61， 再经连接通道 65 由出气口 4 排出。而此时第一径向通道 62和第二径向通道 63， 即输液通道被阀体 1堵住 无法连接输液器管路。 当输液器管路中的空气排气完毕后， 将阀心旋钮 5 回 旋转 90度即可恢复输液。  Referring to Fig. 6, when air is mixed into the infusion set, when the exhaust is required, the 90 degree knob valve knob 5 is used, and the third radial passage 64 communicates with the upper interface 2 of the valve body 1, that is, the infusion line is connected. At this time, the connecting passage 65 communicating with the axial passage 61 also communicates with the air outlet 4, and the air in the infusion tube line will enter the axial passage 61 from the third radial passage 64, that is, the exhaust passage, and then through the connecting passage 65. The air outlet 4 is discharged. At this time, the first radial passage 62 and the second radial passage 63, that is, the infusion passage are blocked by the valve body 1, and the infusion set line cannot be connected. When the air in the infusion set is exhausted, turn the valve knob 5 back 90 degrees to restore the infusion.
本发明可以有效的避免输液过程中产生的气泡， 保证了输液过程中患者 的输液安全， 结构简单， 安装方便， 使用便捷。  The invention can effectively avoid the air bubbles generated during the infusion process, ensures the patient's infusion safety during the infusion process, has a simple structure, is convenient to install, and is convenient to use.
本发明各通道的通流面积可根据实际情况予以设定。 '  The flow area of each channel of the present invention can be set according to actual conditions. '
实施例 2， 参看图 7, 本实用新型的输液排气阀阀体 1的上接口 2设置有 输液管路 11 ' ， 输液管路 11 ' 的攀端设置有台阶型接口 111 ' ， 而下接口 3 上设置有输液管路接头 12 ' ， 使用时台阶型接口 111 ' 接入输液的上行管路， 下接口 3的输液管路接头 12 '接入输液的下行管路， 即可进行输液排气操作。 其余同实施例 1。 Embodiment 2 Referring to FIG. 7, the upper interface 2 of the infusion and exhaust valve body 1 of the present invention is provided with an infusion line 11', and the climbing end of the infusion line 11' is provided with a stepped interface 111', and the lower interface 3 is provided with an infusion line connector 12', and the stepped interface 111' is used to access the infusion line of the infusion. The infusion line connector 12' of the lower interface 3 is connected to the downstream line of the infusion, and the infusion and venting operation can be performed. The rest are the same as in the first embodiment.
以上显示和描述了本发明的基本原理、 主要特征和本发明的优点。 本行 业的技术人员应该了解， 本发明不受上述实施例的限制， 上述实施例和说明 书中描述的只是说明本发明的原理， 在不脱离本发明精神和范围的前提下本 发明还会有各种变化和改进， 这些变化和改进都落入要求保护的本发明范围 内。 本发明要求保护范围由所附的权利要求书及其等同物界定。  The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and that the present invention is described in the foregoing description and the description of the present invention. Such changes and modifications are intended to fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and their equivalents.

Claims

权 利 要 求 Rights request
1. 一种输液排气阀， 包括： 1. An infusion vent valve comprising:
一阀体；  a valve body;
设置在所述的阀体上， 连接输液器管路的上、 下接口， 以及  Provided on the valve body, connecting the upper and lower interfaces of the infusion set, and
设置在所述的阀体上， 排出所述的输液器管路内空气的出气口； 其特征 在于，  Provided on the valve body to discharge an air outlet of the air in the infusion set line; wherein,
还包括一阀芯， 所述的阀心可旋转地安装于所述的阀体内， 在所述的阔 心内设置有互相导通的第一径向通道、 第二径向通道、 第三径向通道和轴向 通道； 旋转所述的阀芯， 使所述的轴向通道在排气状态下连通所述的阀体上 的所述的出气口， 以排除所述的输液器管路内的空气。  The utility model further includes a valve core, wherein the valve core is rotatably mounted in the valve body, and the first radial channel, the second radial channel and the third diameter which are mutually conductive are arranged in the broad center a channel and an axial passage; rotating the valve core such that the axial passage communicates with the air outlet on the valve body in an exhaust state to exclude the infusion tube line air.
2. 如权利要求 1所述的一种输液排气阀， 其特征在于， 在所述的阔心一 端固定连接有一阀心旋钮。  2. An infusion vent valve according to claim 1, wherein a valve center knob is fixedly coupled to one end of said wide center.
3. 如权利要求 1或 2所述的一种输液排气阀，'其特征在于， 所述第一径 向通道和第二径向通道成直线布置相互连通， 构成输液通道； 所述第三径向. 通道为排气通道， 垂直连通于所述的第一径向通道和第二径向通道； 所述的 轴向通道连通于所述的第一径向通道、 第二径向通道、 第三径向通道的交汇 处。  3. An infusion vent valve according to claim 1 or 2, wherein the first radial passage and the second radial passage are arranged in line with each other to form an infusion channel; Radial. The passage is an exhaust passage that communicates perpendicularly with the first radial passage and the second radial passage; the axial passage communicates with the first radial passage, the second radial passage, The intersection of the third radial channels.
4. 如权利要求 3所述的一种输液排气阀， 其特征在于， 所述的阀心在位 于所述的阀体上的所述的出气口位置处， 设置有一连接所述的轴向通道与所 述的出气口的连接通道， 所述的连接通道与第三径向通道在所述的阀心的径 向截面上的投影为一直线。  4. The infusion vent valve according to claim 3, wherein said valve core is provided with a connecting axial direction at said air outlet position on said valve body A connecting passage of the passage and the air outlet, the projection of the connecting passage and the third radial passage on a radial section of the valve core is a straight line.
5. 如权利要求 1所述的一种输液排气阀， 其特征在于， 所述阀体的上接 口为插槽式接口， 所述的下接口为插头式接口。  5. The infusion vent valve according to claim 1, wherein the upper interface of the valve body is a slot type interface, and the lower interface is a plug type interface.
PCT/CN2008/000704 2007-04-11 2008-04-07 Transfusion exhaust valve WO2008125007A1 (en)

Applications Claiming Priority (2)

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CNU2007200688801U CN201020151Y (en) 2007-04-11 2007-04-11 Transfusion exhaust valve
CN200720068880.1 2007-04-11

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CN201020151Y (en) * 2007-04-11 2008-02-13 张兴明 Transfusion exhaust valve

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CN201020151Y (en) * 2007-04-11 2008-02-13 张兴明 Transfusion exhaust valve

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CN2137159Y (en) * 1992-05-21 1993-06-30 刘国忠 Safety infusion device
JPH10234863A (en) * 1997-02-25 1998-09-08 Paru Medical:Kk Three-way cock
US6217556B1 (en) * 1998-03-19 2001-04-17 Allegiance Corporation Drainage catheter
CN2396781Y (en) * 1999-11-08 2000-09-20 张华芳 Puncturing needle for thoracico-abdominal cavity
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Publication number Priority date Publication date Assignee Title
CN102488961A (en) * 2011-12-15 2012-06-13 北京首选科技有限公司 Air charging and discharging valve special for external counterpulsation

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