WO2013097682A1 - 医用混氧阀 - Google Patents

医用混氧阀 Download PDF

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Publication number
WO2013097682A1
WO2013097682A1 PCT/CN2012/087361 CN2012087361W WO2013097682A1 WO 2013097682 A1 WO2013097682 A1 WO 2013097682A1 CN 2012087361 W CN2012087361 W CN 2012087361W WO 2013097682 A1 WO2013097682 A1 WO 2013097682A1
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WO
WIPO (PCT)
Prior art keywords
knob
hole
dial
bobbin
valve body
Prior art date
Application number
PCT/CN2012/087361
Other languages
English (en)
French (fr)
Inventor
杨威
毕会民
Original Assignee
北京谊安医疗系统股份有限公司
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 北京谊安医疗系统股份有限公司 filed Critical 北京谊安医疗系统股份有限公司
Priority to US14/000,867 priority Critical patent/US20140053842A1/en
Priority to EA201391100A priority patent/EA024419B1/ru
Publication of WO2013097682A1 publication Critical patent/WO2013097682A1/zh

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Classifications

    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • 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
    • 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
    • A61M39/223—Multiway valves
    • A61M2039/224—Multiway valves of the slide-valve type
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/0007—Special media to be introduced, removed or treated introduced into the body
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0208—Oxygen

Definitions

  • the invention relates to a valve, in particular to a medical oxygen mixing valve. Background technique
  • a mixed oxygen valve is a device that mixes oxygen with air and then outputs a percentage of oxygen concentration by manually adjusting the knob.
  • the mixed oxygen valve generally has problems such as complicated structure, difficulty in installation and debugging, and high requirements on the processing technology. Summary of the invention
  • the object of the present invention is to provide a medical oxygen mixing valve to solve the problems that the existing oxygen mixing valve has a complicated structure, is difficult to process, and is difficult to install and debug.
  • a medical oxygen mixing valve comprising a valve body, a valve cover, a spring, a bobbin assembly, a dial assembly and a knob assembly, wherein a central opening of the valve body is provided with a through hole for receiving the bobbin assembly, and a radial direction thereof Opening an air input hole, an oxygen input hole and a mixed gas output hole communicating with the through hole;
  • the bobbin assembly includes a bobbin and two star-shaped sealing jaws disposed on the bobbin, and the two-star sealing jaw can completely seal one of the air input hole and the oxygen input hole, and the other is just in the Fully connected state;
  • the dial assembly includes a dial
  • the knob assembly includes a knob and an adjusting screw, and the adjusting screw is disposed in a hole formed in a central axis of the knob, and one end of the knob protrudes from the knob;
  • the valve cover is connected to one end of the valve body, the valve body is provided with a wired shaft assembly, and a spring for pressing the bobbin is disposed between one end of the bobbin and the valve cover, and the other end of the valve body is connected with the dial.
  • Knob An end of the adjusting screw protrudes from the dial by a convex threaded portion, and the adjusting screw is in press-contact with the other end of the spool.
  • the dial assembly further includes a limiting set screw disposed in the radial threaded hole of the dial, the knob assembly further comprising two limit pins, the two limit pins are disposed at One end of the adjusting screw of the knob, and the angle between the farthest side of the two P-position pins and the two tangent lines of the central axis of the knob is 90° or 270°, and the limiting pin extends into the upper part of the dial The annular groove is opened, and the limit is blocked by the limiting screw when the knob is turned.
  • the bobbin assembly further includes a 0-shaped sealing jaw, and one end of the bobbin that is in contact with the adjusting screw is hemispherical, and the bobbin is provided with a 0-shaped sealing jaw near the hemispherical end.
  • valve cover and the valve body are connected by screws and sealed by a step and a 0-type sealing jaw.
  • air input hole, the oxygen input hole and the mixed gas output hole are each provided with a joint.
  • valve body and the dial are connected by screws.
  • the knob assembly further includes a set screw disposed in a radial threaded hole in the knob and in pressure contact with the adjusting screw.
  • the valve body is made of polymethyl methacrylate.
  • the working principle of the invention is: providing an axial hole in the valve body, and providing a bobbin assembly slidable along the hole wall in the hole, and opening an air input hole communicating with the hole in the radial direction of the valve body.
  • the oxygen input hole and the mixed gas output hole adjust the ratio of the output oxygen concentration of the mixed gas output hole by blocking the size of the air input hole and the oxygen input hole when the spool assembly slides in the valve body.
  • FIG. 1 is a front perspective view showing the structure of a medical oxygen mixing valve according to an embodiment of the present invention.
  • Fig. 2 is a cross-sectional structural view of the medical oxygen mixing valve shown in Fig. 1 at A-A.
  • Fig. 3 is a front view showing the structure of a dial assembly for the medical oxygen mixing valve shown in Fig. 1.
  • Figure 4 is a cross-sectional structural view of the dial assembly shown in Figure 3 at B-B.
  • Fig. 5 is a perspective view showing the structure of a knob assembly for the medical oxygen mixing valve shown in Fig. 1.
  • Figure 6 is a top plan view of the knob assembly of Figure 5.
  • Figure 7 is a cross-sectional structural view of the knob assembly of Figure 5 at C-C.
  • valve body 1, the valve body; 2, the valve cover; 3, the spring; 4, the spool; 5, star seal ⁇ ; 6, dial;
  • the medical oxygen mixing valve of the present embodiment includes a valve body 1, a valve cover 2, a spring 3, a bobbin assembly, a dial assembly and a knob assembly, and the center axial direction of the valve body 1 is useful.
  • the bobbin assembly includes a bobbin 4 and two star-shaped sealing jaws 5 disposed on the bobbin, and the two-star sealing jaw 5 can completely seal one of the air input hole and the oxygen input hole, and One is just in full connectivity;
  • the dial assembly includes a dial 6;
  • the knob assembly includes a knob 7 and an adjusting screw 8, the adjusting screw 8 is disposed in a hole formed in the central axial direction of the knob 7, and one end thereof protrudes from the knob 7;
  • the valve cover 2 is connected to one end of the valve body 1, and the valve body 1 is provided with a wired shaft assembly, and is online.
  • a spring 3 for pressing the bobbin 4 is disposed between one end of the shaft 4 and the valve cover 2.
  • the other end of the valve body 1 is connected to the dial 6.
  • the protruding end of the adjusting screw 8 of the knob 7 passes through a convex thread portion. Connected to the dial 6 , the adjusting screw 8 is in pressure contact with the other end of the spool 4 .
  • the dial assembly further includes a limiting set screw 9 disposed in the radial threaded hole of the dial 6.
  • the knob assembly further includes two limit pins 10, and the two limit pins 10 are disposed.
  • the limiting pin 10 extends.
  • the upper portion of the dial 6 is axially opened in the annular groove, and the limit is tightened by the set screw 9 when the knob 7 is turned.
  • the bobbin assembly further includes a 0-shaped sealing jaw 11, and one end of the bobbin 4 that is in pressure contact with the adjusting screw 8 is hemispherical, and the bobbin 4 is provided with a 0-shaped sealing jaw 11 near the hemispherical end.
  • the valve cover 2 is screwed to the valve body 1 and sealed by a step and a 0-type sealing jaw 11.
  • a joint 12 is provided at each of the air input hole, the oxygen input hole, and the mixed gas output port.
  • valve body 1 and the dial 6 are connected by screws.
  • the knob assembly further includes a set screw 13, the set screw 13 is disposed in a radial threaded hole in the knob 7, and is in pressure contact with the adjusting screw 8.
  • the valve body 1 is made of polymethyl methacrylate.
  • the adjusting screw 8 on the knob 7 can separately adjust the relative position of the star seal ⁇ 5 on the bobbin 4 and the oxygen input hole and the air input hole on the valve body 1, and the P-position fixing screw 9
  • the blocking limit of the two P-position pins 10 allows the knob 7 to rotate only 270°.
  • the invention solves the problems that the existing oxygen mixing valve has the advantages of complicated structure, difficulty in processing, difficulty in installation and debugging, and has the advantages of simple structure, easy processing and easy installation and debugging.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Emergency Medicine (AREA)
  • Multiple-Way Valves (AREA)
  • Lift Valve (AREA)

Abstract

一种医用混氧阀，包括阀体（1）、阀盖（2）、弹簧（3）、线轴组件、度盘组件和旋钮组件。所述阀体（1）内设置有轴向的孔。所述孔内设置可沿孔壁轴向滑动的线轴组件。所述阀体（1）的径向开设与所述孔相通的空气输入孔、氧气输入孔和混合气输出孔。所述旋钮组件用于调节线轴组件在阀体轴向设置的孔中的位置，以调节线轴组件挡住空气输入孔和氧气输入孔的大小，从而实现对输出氧浓度的调节。所述混氧阀具有结构简单、易加工和安装调试容易的优点。

Description

医用混氧阀 技术领域
本发明涉及一种阀门， 特别涉及一种医用混氧阀。 背景技术
混氧阀是一种将氧气与空气混合， 然后通过手动调节旋钮输出一定百分比 的氧浓度的装置。 目前， 混氧阀普遍存在结构复杂、 难于安装调试、 对加工工 艺要求高等问题。 发明内容
本发明的目的是提供一种医用混氧阀， 以解决现有混氧阀结构复杂、 难以 加工、 安装调试困难的问题。
本发明的目的是通过以下技术方案来实现的：
一种医用混氧阀， 包括阀体、 阀盖、 弹簧、 线轴组件、 度盘组件和旋钮组 件， 所述阀体的中心轴向开设有用于容纳所述线轴组件的通孔， 且其径向开设 有与所述通孔相通的空气输入孔、 氧气输入孔和混合气输出孔；
所述线轴组件包括线轴和两个设置于所述线轴上的星型密封圏， 所述两星 型密封圏可以实现完全封堵空气输入孔和氧气输入孔中的一个， 而使另一个刚 好处于完全连通状态；
所述度盘组件包括度盘；
所述旋钮组件包括旋钮和调节螺钉， 所述调节螺钉设置在所述旋钮中心轴 向开设的孔内， 且其一端突出所述旋钮；
所述阀盖与阀体的一端连接， 所述阀体内设置有线轴组件， 并在线轴一端 与阀盖间设置有顶压线轴的弹簧， 所述阀体的另一端与度盘连接， 所述旋钮的 调节螺钉突出的一端通过一凸起的螺纹部与所述度盘连接， 所述调节螺钉与所 述线轴的另一端顶压接触。
优选地， 所述度盘组件还包括设置在所述度盘上径向螺纹孔内的限位用紧 定螺钉， 所述旋钮组件还包括两个限位销， 所述两限位销设置在所述旋钮的调 节螺钉突出的一端， 且过两 P艮位销相距最远侧与旋钮中轴线的两切线的夹角为 90° 或 270° ， 所述限位销伸入度盘上部轴向开设的环形凹槽内， 并在转动旋 钮时由所述限位用紧定螺钉阻挡限位。
优选地， 所述线轴组件还包括 0形密封圏， 所述线轴上与调节螺钉顶压接 触的一端为半球形， 所述线轴上靠近所述半球形端处设置有 0形密封圏。
优选地， 所述阀盖与阀体通过螺钉连接， 并通过台阶和 0型密封圏密封。 优选地， 所述空气输入孔、 氧气输入孔和混合气输出孔处均设置有接头。 优选地， 所述阀体与度盘通过螺钉连接。
优选地， 所述旋钮组件还包括紧定螺钉， 所述紧定螺钉设置在所述旋钮上 的径向螺纹孔内， 并与所述调节螺钉顶压接触。
优选地， 所述阀体由聚甲基丙烯酸甲酯制成。
本发明的工作原理为： 在阀体内设置轴向的孔， 并在所述孔内设置可沿孔 壁轴向滑动的线轴组件， 在阀体的径向开设与所述孔相通的空气输入孔、 氧气 输入孔和混合气输出孔， 通过线轴组件在阀体内滑动时挡住空气输入孔和氧气 输入孔的大小来实现混合气输出孔输出氧浓度比例的调节。
本发明的有益效果为： 结构简单、 易加工、 安装调试容易。 附图说明
下面根据附图和实施例对本发明作进一步详细说明。 图 1是本发明实施例的医用混氧阀的主视半剖结构示意图。
图 2是图 1所示的医用混氧阀在 A-A处的剖视结构示意图。
图 3是用于图 1所示医用混氧阀的度盘组件的主视结构示意图。
图 4是图 3所示度盘组件在 B-B处的剖视结构示意图。
图 5是用于图 1所示医用混氧阀的旋钮组件的立体结构示意图。
图 6是图 5所示旋钮组件的俯视结构示意图。
图 7是图 5所示旋钮组件在 C-C处的剖视结构示意图。
图中： 1、 阀体； 2、 阀盖； 3、 弹簧； 4、 线轴； 5、 星型密封圏； 6、 度盘；
7、 旋钮； 8、 调节螺钉； 9、 紧定螺钉； 10、 P艮位销； 11、 0形密封圏； 12、 接 头； 13、 紧定螺钉。
具体实施方式
如图 1 ~ 7所示， 本实施例的医用混氧阀， 包括阀体 1、 阀盖 2、 弹簧 3、 线轴组件、 度盘组件和旋钮组件， 所述阀体 1 的中心轴向开设有用于容纳所述 线轴组件的通孔， 且其径向开设有与所述通孔相通的空气输入孔、 氧气输入孔 和混合气输出孔；
所述线轴组件包括线轴 4和两个设置于所述线轴上的星型密封圏 5， 所述 两星型密封圏 5可以实现完全封堵空气输入孔和氧气输入孔中的一个， 而使另 一个刚好处于完全连通状态；
所述度盘组件包括度盘 6;
所述旋钮组件包括旋钮 7和调节螺钉 8，所述调节螺钉 8设置在所述旋钮 7 中心轴向开设的孔内， 且其一端突出所述旋钮 7;
所述阀盖 2与阀体 1的一端连接， 所述阀体 1 内设置有线轴组件， 并在线 轴 4一端与阀盖 2间设置有顶压线轴 4的弹簧 3，所述阀体 1的另一端与度盘 6 连接， 所述旋钮 7的调节螺钉 8突出的一端通过一凸起的螺纹部与所述度盘 6 连接， 所述调节螺钉 8与所述线轴 4的另一端顶压接触。
所述度盘组件还包括设置在所述度盘 6上径向螺纹孔内的限位用紧定螺钉 9， 所述旋钮组件还包括两个限位销 10， 所述两限位销 10设置在所述旋钮 7的 调节螺钉 8突出的一端，且过两限位销 10相距最远侧与旋钮 7中轴线的两切线 的夹角为 90° 或 270° ，所述限位销 10伸入度盘 6上部轴向开设的环形凹槽内， 并在转动旋钮 7时由所述限位用紧定螺钉 9阻挡限位。
所述线轴组件还包括 0形密封圏 11， 所述线轴 4上与调节螺钉 8顶压接触 的一端为半球形， 所述线轴 4上靠近所述半球形端处设置有 0形密封圏 11。
所述阀盖 2与阀体 1通过螺钉连接， 并通过台阶和 0型密封圏 11密封。 所述空气输入孔、 氧气输入孔和混合气输出孔处均设置有接头 12。
所述阀体 1与度盘 6通过螺钉连接。
所述旋钮组件还包括紧定螺钉 13， 所述紧定螺钉 13设置在所述旋钮 7上 的径向螺纹孔内， 并与所述调节螺钉 8顶压接触。
所述阀体 1由聚甲基丙烯酸甲酯制成。
本实施例中， 旋钮 7上的调节螺钉 8可单独完成对线轴 4上星型密封圏 5 与阀体 1上氧气输入孔、 空气输入孔的相对位置的调节， P艮位用紧定螺钉 9对 两 P艮位销 10的阻挡限位使旋钮 7只能旋转 270° ， 当旋钮 7上的指示标志对准 度盘 6上的 21时， 弹簧处于压缩状态， 星型密封圏 5完全堵住氧气输入孔， 空 气输入孔打开， 混合气输出孔输出的混合气氧浓度即为 21%， 继续顺时针旋转 旋钮 7， 氧浓度越来越大， 当线轴组件移动到另一个星型密封圏 5完全挡住空 气输入孔时， 氧气输入孔打开， 混合气输出孔输出的混合气氧浓度即为 100%。 本发明解决了现有混氧阀结构复杂、 难以加工、 安装调试困难的问题， 具 有结构简单、 易加工和安装调试容易的优点。

Claims

权利要求书
1、 一种医用混氧阀， 其特征在于： 包括阀体、 阀盖、 弹簧、 线轴组件、 度 盘组件和旋钮组件，所述阀体的中心轴向开设有用于容纳所述线轴组件的通孔， 且其径向开设有与所述通孔相通的空气输入孔、 氧气输入孔和混合气输出孔； 所述线轴组件包括线轴和两个设置于所述线轴上的密封圏， 该两密封圏可 以实现完全封堵空气输入孔和氧气输入孔中的一个， 而使另一个刚好处于完全 连通状态；
所述度盘组件包括度盘；
所述旋钮组件包括旋钮和调节螺钉， 所述调节螺钉设置在所述旋钮中心轴 向开设的孔内， 且该调节螺钉的一端突出所述旋钮；
所述阀盖与阀体的一端连接， 所述阀体内设置有所述线轴组件， 并在所述 线轴一端与所述阀盖间设置有顶压线轴的弹簧， 所述阀体的另一端与所述度盘 连接， 所述旋钮的调节螺钉突出的一端通过一凸起的螺纹部与所述度盘连接， 所述调节螺钉与所述线轴的另一端顶压接触。
2、 根据权利要求 1所述的医用混氧阀， 其特征在于： 所述两密封圏均为星 型密封圏。
3、 根据权利要求 1所述的医用混氧阀， 其特征在于： 所述度盘组件还包括 设置在所述度盘上径向螺纹孔内的限位用紧定螺钉， 所述旋钮组件还包括两个 限位销， 所述两限位销设置在所述旋钮的调节螺钉突出的一端， 所述限位销伸 入度盘上部轴向开设的环形 W槽内， 并在转动旋钮时由所述限位用紧定螺钉阻 挡限位。
4、 根据权利要求 2所述的医用混氧阀， 其特征在于： 所述线轴组件还包括 0形密封圏， 所述线轴上与调节螺钉顶压接触的一端为半球形， 所述线轴上靠 近所述半球形端处设置有 0形密封圏。
5、 根据权利要求 1所述的医用混氧阀， 其特征在于： 所述阀盖与阀体通过 螺钉连接， 并通过台阶和 0型密封圏密封。
6、 根据权利要求 1所述的医用混氧阀， 其特征在于： 所述空气输入孔、 氧 气输入孔和混合气输出孔处均设置有接头。
7、 根据权利要求 1所述的医用混氧阀， 其特征在于： 所述阀体与度盘通过 螺钉连接。
8、 根据权利要求 1所述的医用混氧阀， 其特征在于： 所述旋钮组件还包括 紧定螺钉， 所述紧定螺钉设置在所述旋钮上的径向螺纹孔内， 并与所述调节螺 钉顶压接触。
9、 根据权利要求 1所述的医用混氧阀， 其特征在于： 所述阀体由聚甲基丙 烯酸甲酯制成。
10、 根据权利要求 1所述的医用混氧阀， 其特征在于： 所述旋钮的旋转角 度范围为 0° ~ 270° 。
PCT/CN2012/087361 2011-12-30 2012-12-25 医用混氧阀 WO2013097682A1 (zh)

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