WO2007121650A1 - Auto balance float type safety infusion tube - Google Patents

Auto balance float type safety infusion tube Download PDF

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Publication number
WO2007121650A1
WO2007121650A1 PCT/CN2007/000607 CN2007000607W WO2007121650A1 WO 2007121650 A1 WO2007121650 A1 WO 2007121650A1 CN 2007000607 W CN2007000607 W CN 2007000607W WO 2007121650 A1 WO2007121650 A1 WO 2007121650A1
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WO
WIPO (PCT)
Prior art keywords
partition
wall
connecting rod
float type
tube
Prior art date
Application number
PCT/CN2007/000607
Other languages
French (fr)
Chinese (zh)
Inventor
Qingqiang Chen
Original Assignee
Qingqiang Chen
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 Qingqiang Chen filed Critical Qingqiang Chen
Publication of WO2007121650A1 publication Critical patent/WO2007121650A1/en

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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
    • 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
    • A61M5/40—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 using low-level float-valve to cut off media flow from reservoir
    • 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
    • A61M5/1411—Drip chambers

Definitions

  • the invention relates to a medical device, in particular to an automatic balance float type safe infusion tube for human body infusion.
  • the object of the present invention is to provide an automatic balance float type safe infusion tube which is convenient to use, safe and reliable in operation.
  • an automatic balance float type safe infusion tube comprising a Murphys tube body, wherein: the tube body is provided with a horizontal partition, the outer edge of the partition and the inner wall of the tube body Sealed connection; a through hole is arranged in the middle of the partition, a connecting rod is arranged in the through hole, a liquid passage is arranged between the outer wall of the connecting rod and the inner wall of the through hole; a spherical shape is arranged at the end of the connecting rod at the upper part of the partition
  • the connecting head has a soft closing cap on the spherical connecting head; a float is connected to the end of the connecting rod at the lower part of the partition; and the lower surface of the soft closing cap is in contact with the upper surface of the partition.
  • the pipe body described in the above self-balancing float type safe infusion pipe is composed of an upper pipe body and a lower pipe body, and a connecting pipe is arranged at the periphery of the baffle plate, and the upper and lower pipe bodies are respectively inserted on both sides of the connecting pipe.
  • the inner wall of the tube described in the above self-balancing float type safe infusion tube is provided with a horizontal groove, and the outer edge of the partition is embedded in the groove.
  • the liquid passage described in the above-mentioned automatic balance float type safety infusion tube is a plurality of grooves extending axially along the outer wall surface of the connecting rod.
  • the soft closed cap is sleeved on the spherical joint at the upper end of the connecting rod, even if the tube body is offset or the connecting rod is eccentric (this is in production and use). It can also be used at any time to ensure the sealing effect between the soft closed cap and the partition.
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Fig. 2 is a schematic view showing the structure of a second embodiment of the present invention.
  • the automatic balance float type safe infusion tube of the present invention comprises a Murphys tube body 1, and a horizontal partition 2 is arranged in the tube body 1, and the tube body 1 is again composed of the upper tube body 1A and the lower portion.
  • the pipe body 1B is composed of a connecting pipe 2B at the periphery of the partition plate 2, and the upper and lower pipe bodies 1A and IB are respectively inserted into the connecting pipe 2B to form a sealed connection;
  • the through hole 2A is provided in the middle of the partition plate 2, in the through hole 2A is provided with a connecting rod 3, and a liquid passage 4 is provided between the outer wall of the connecting rod 3 and the inner wall of the through hole 2A, and the liquid passage 4 is four grooves extending axially along the outer wall surface of the connecting rod 3;
  • the end of the connecting rod 3 is provided with a spherical connecting head 3A, the spherical connecting head 3A is sleeved with a soft closing cap 5, and at the end of the connecting rod 3 at
  • the automatic balance float type safe infusion tube of the present invention is basically the same as that of the first embodiment, except that the shape of the tube body 1 is changed, and the connection manner between the partition plate 2 and the tube body 1 is changed.
  • the present embodiment by providing a horizontal groove 1C in the inner wall of the pipe body 1, the outer edge of the partition plate 2 is embedded in the groove 1C, and the same technical effect can be achieved.
  • the liquid level in the lower tubular body 1B is higher during normal infusion, and the float 6 is moved upward by buoyancy, so that the lower surface of the soft closure cap 5 and the partition 2 are The upper surface is not in contact, and the infusion liquid passes through the upper tube body 1A and flows through the liquid channel 4 into the lower tube body 1B to realize normal infusion; when no liquid flows in the upper tube body 1A, the liquid level in the lower tube body IB continuously decreases.
  • the float 6 continuously descends with the liquid level, and the soft closing cap 5 is moved downward by the connecting rod 3, and when the liquid surface in the lower tubular body 1B reaches a certain position, the lower surface of the rubber closing cap and the upper surface of the partition 2 Contact, forming a contact seal, so that the infusion tube is isolated from the air, can effectively prevent air from entering the human body, and can also prevent human blood from flowing backwards.
  • the soft closing cap 5 is sleeved on the spherical joint 3A at the upper end of the connecting rod 3, even if the tubular body 1 is displaced or the connecting rod 3 is eccentric, the soft closing cap 5 and the partition 2 can be secured. The sealing effect is safer and more reliable.

Landscapes

  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

An auto-balance float type safety infusion tube includes a morph's tube (1). A level clapboard (2) is disposed in the tube (1), the outer edge of the clapboard (2) is hermetically connected to the inner wall of the tube (1). A through hole (2A) is disposed in the center of the clapboard (2), a connecting pole (3) is disposed in the through hole (2A), a fluid channel (4) is disposed between the outer wall of the connecting pole (3) and the inner wall of the through hole (2A). A ball connecting head (3A) is disposed on the end of the connecting pole (3) above the clapboard (2), a flexible closing cap (5) is sheathed on the ball connecting head (3A). A float (6) is connected to the end of connecting pole (3) below the clapboard (2). The lower surface of the flexible closing cap (5) is contiguously sealed to the upper surface of the clapboard (2).

Description

自动平衡浮子式安全输液管 技术领域  Automatic balance float type safe infusion tube
本发明涉及医疗器件， 尤其是指用于人体输液的自动平衡浮子式安全输液管。  The invention relates to a medical device, in particular to an automatic balance float type safe infusion tube for human body infusion.
背景技术 Background technique
目前， 在临床医疗中使用的传统的输液管 （即墨菲斯管）， 在使用时需要医护人员 不断观察液位， 防止输液完成后空气进入输液管内及血液倒流， 这种输液管增加医护人 员的劳动强度。 中国专利网及美国专利网上都公开了相当数量的改进输液装置， 如中国 专利 CN91231324.2、 CN96246144.X、 CN0127888.0、 CN02285777.X、 CN200320110150.5、 CN200420094224.5等， 美国专利 US 5234414等， 都存在难以实施的不足， 因而至今也 没有相关的产品上市销售， 给广大的医务工作者造成不便。本申请的发明人经过多年研 究改进， 发明了一种输液完成后可以自动封闭、 使用安全的输液管。  At present, the traditional infusion tube (ie, Murphy tube) used in clinical medicine requires the medical staff to constantly observe the liquid level during use, to prevent the air from entering the infusion tube and the blood backflow after the infusion is completed, and the infusion tube increases the medical staff. Labor intensity. A number of improved infusion devices are disclosed in the Chinese Patent Network and the U.S. Patent Online, such as Chinese patents CN91231324.2, CN96246144.X, CN0127888.0, CN02285777.X, CN200320110150.5, CN200420094224.5, etc., US Patent US 5234414, etc. There are deficiencies that are difficult to implement, so there is no related product to market for sale, which has caused inconvenience to the majority of medical workers. After years of research and improvement, the inventors of the present application have invented a safe infusion tube which can be automatically closed and used after the infusion is completed.
发明内容 Summary of the invention
本发明的目的在于提供一种使用方便， 工作安全、可靠的自动平衡浮子式安全输液 管。  SUMMARY OF THE INVENTION The object of the present invention is to provide an automatic balance float type safe infusion tube which is convenient to use, safe and reliable in operation.
本发明的目的是这样实现的：一种自动平衡浮子式安全输液管，包括墨菲斯管管体， 其中： 所述的管体内设有水平隔板， 隔板的外缘与管体的内壁之间密封连接； 在隔板中 部设有通孔， 在通孔内设有连杆， 在连杆外壁与通孔内壁之间设有液体通道； 在隔板上 部的连杆端部设有球形连接头， 球形连接头上套有软质封闭帽； 在隔板下部的连杆端部 连接有浮子； 所述软质封闭帽的下表面与隔板的上表面之间接触密封。  The object of the present invention is achieved by an automatic balance float type safe infusion tube comprising a Murphys tube body, wherein: the tube body is provided with a horizontal partition, the outer edge of the partition and the inner wall of the tube body Sealed connection; a through hole is arranged in the middle of the partition, a connecting rod is arranged in the through hole, a liquid passage is arranged between the outer wall of the connecting rod and the inner wall of the through hole; a spherical shape is arranged at the end of the connecting rod at the upper part of the partition The connecting head has a soft closing cap on the spherical connecting head; a float is connected to the end of the connecting rod at the lower part of the partition; and the lower surface of the soft closing cap is in contact with the upper surface of the partition.
上述的自动平衡浮子式安全输液管中所述的管体是由上管体和下管体组成，在隔板 外围设有连接管， 上、 下管体分别插接在连接管两边。  The pipe body described in the above self-balancing float type safe infusion pipe is composed of an upper pipe body and a lower pipe body, and a connecting pipe is arranged at the periphery of the baffle plate, and the upper and lower pipe bodies are respectively inserted on both sides of the connecting pipe.
上述的自动平衡浮子式安全输液管中所述的管体内壁设有一圈水平凹槽，隔板的外 缘嵌设在该凹槽内。  The inner wall of the tube described in the above self-balancing float type safe infusion tube is provided with a horizontal groove, and the outer edge of the partition is embedded in the groove.
上述的自动平衡浮子式安全输液管中所述的液体通道为沿连杆外壁表面轴向延伸 的多条凹槽。 本发明采用上述结构后， 因软质封闭帽的下表面可以与隔板的上表面之间能形成接 触密封， 当输液瓶内无液体时， 管体内的液面位置逐渐降低， 浮子随液面降低通过连杆 带动软质封闭帽下移， 当软质封闭帽的下表面与隔板的上表面接触后形成密封， 这样可 保证输液管在输液完成后与空气隔离，防止空气进入人体内，同时也可以防止血液倒流， 提高输液管的使用安全性能； 同时因软质封闭帽套接在连杆上端的球形连接头上， 即使 管体发生偏移或连杆偏心 （这在生产和使用中随时存在）， 也能保证软质封闭帽与隔板 之间的密封效果。 The liquid passage described in the above-mentioned automatic balance float type safety infusion tube is a plurality of grooves extending axially along the outer wall surface of the connecting rod. After adopting the above structure, the lower surface of the soft closure cap can form a contact seal with the upper surface of the separator. When there is no liquid in the infusion bottle, the liquid surface position in the tube body gradually decreases, and the float surface follows the liquid surface. Reduce the downward movement of the soft closure cap by the connecting rod, and form a seal when the lower surface of the soft closure cap contacts the upper surface of the partition plate, thereby ensuring that the infusion tube is isolated from the air after the infusion is completed, preventing air from entering the human body. At the same time, it can prevent blood from flowing backward and improve the safety performance of the infusion tube. At the same time, because the soft closed cap is sleeved on the spherical joint at the upper end of the connecting rod, even if the tube body is offset or the connecting rod is eccentric (this is in production and use). It can also be used at any time to ensure the sealing effect between the soft closed cap and the partition.
附图说明 DRAWINGS
下面结合附图中的实施例对本发明作进一步地详细说明， 但不构成对本发明的任何 限制。  The present invention is further described in detail below with reference to the embodiments of the accompanying drawings, but without restricting the invention.
图 1是本发明实施例 1的结构示意图；  1 is a schematic structural view of Embodiment 1 of the present invention;
图 2是本发明实施例 2的结构示意图。  Fig. 2 is a schematic view showing the structure of a second embodiment of the present invention.
具体实施方式 detailed description
实施例 1  Example 1
参阅图 1所示， 本发明的自动平衡浮子式安全输液管， 包括墨菲斯管管体 1， 在管 体 1内设有水平隔板 2， 管体 1又是由上管体 1A和下管体 1B组成， 在隔板 2外围设有 连接管 2B， 上、 下管体 1A、 IB分别插接在连接管 2B两边形成密封连接； 在隔板 2中部 设有通孔 2A, 在通孔 2A内设有连杆 3， 在连杆 3外壁与通孔 2A内壁之间设有液体通道 4， 液体通道 4为沿连杆 3外壁表面轴向延伸的四条凹槽； 在隔板 2上部的连杆 3端部 设有球形连接头 3A， 球形连接头 3A上套有软质封闭帽 5， 在隔板 2下部的连杆 3端部 连接有浮子 6; 因软质封闭帽 5可以相对球形连接头 3A偏转一定的角度，达到自动修正 浮子 6的重力偏离， 使软质封闭帽 5的下表面与隔板 2的上表面之间形成接触密封。  Referring to Fig. 1, the automatic balance float type safe infusion tube of the present invention comprises a Murphys tube body 1, and a horizontal partition 2 is arranged in the tube body 1, and the tube body 1 is again composed of the upper tube body 1A and the lower portion. The pipe body 1B is composed of a connecting pipe 2B at the periphery of the partition plate 2, and the upper and lower pipe bodies 1A and IB are respectively inserted into the connecting pipe 2B to form a sealed connection; the through hole 2A is provided in the middle of the partition plate 2, in the through hole 2A is provided with a connecting rod 3, and a liquid passage 4 is provided between the outer wall of the connecting rod 3 and the inner wall of the through hole 2A, and the liquid passage 4 is four grooves extending axially along the outer wall surface of the connecting rod 3; The end of the connecting rod 3 is provided with a spherical connecting head 3A, the spherical connecting head 3A is sleeved with a soft closing cap 5, and at the end of the connecting rod 3 at the lower part of the partitioning plate 2, a float 6 is connected; since the soft closing cap 5 can be relatively spherical The connector 3A is deflected by a certain angle to automatically correct the gravity deviation of the float 6, so that a contact seal is formed between the lower surface of the soft closure cap 5 and the upper surface of the spacer 2.
实施例 2  Example 2
参阅图 2所示， 本发明的自动平衡浮子式安全输液管， 与实施例 1基本相同， 不同 的是因管体 1的形状不同， 改变了隔板 2与管体 1之间的连接方式， 在本实施例中是通 过在管体 1内壁设有一圈水平凹槽 1C， 将隔板 2的外缘嵌设在该凹槽 1C内， 可以达致 同样的技术效果。 本发明具体使用时， 参阅图 1所示， 正常输液时下管体 1B内的液面较高， 浮子 6 在浮力的作用下往上移动， 使软质封闭帽 5的下表面与隔板 2的上表面不接触， 输液液 体经过上管体 1A后， 经液体通道 4流向下管体 1B内， 实现正常输液； 当上管体 1A内 无液体流入时， 下管体 IB内的液位不断下降， 浮子 6随液面不断下降， 通过连杆 3带 动软质封闭帽 5向下移动， 当下管体 1B内的液面到达一定的位置时， 橡胶封闭帽的下 表面与隔板 2的上表面接触， 形成接触密封， 使输液管与空气隔离， 可有效防止空气进 入人体内， 同时也可以防止人体血液倒流。而且， 因软质封闭帽 5套接在连杆 3上端的 球形连接头 3A上， 即使管体 1发生偏移或连杆 3发生偏心， 也能保证软质封闭帽 5与 隔板 2之间密封效果， 使用更加安全、 可靠。 Referring to FIG. 2, the automatic balance float type safe infusion tube of the present invention is basically the same as that of the first embodiment, except that the shape of the tube body 1 is changed, and the connection manner between the partition plate 2 and the tube body 1 is changed. In the present embodiment, by providing a horizontal groove 1C in the inner wall of the pipe body 1, the outer edge of the partition plate 2 is embedded in the groove 1C, and the same technical effect can be achieved. When the present invention is specifically used, referring to FIG. 1, the liquid level in the lower tubular body 1B is higher during normal infusion, and the float 6 is moved upward by buoyancy, so that the lower surface of the soft closure cap 5 and the partition 2 are The upper surface is not in contact, and the infusion liquid passes through the upper tube body 1A and flows through the liquid channel 4 into the lower tube body 1B to realize normal infusion; when no liquid flows in the upper tube body 1A, the liquid level in the lower tube body IB continuously decreases. The float 6 continuously descends with the liquid level, and the soft closing cap 5 is moved downward by the connecting rod 3, and when the liquid surface in the lower tubular body 1B reaches a certain position, the lower surface of the rubber closing cap and the upper surface of the partition 2 Contact, forming a contact seal, so that the infusion tube is isolated from the air, can effectively prevent air from entering the human body, and can also prevent human blood from flowing backwards. Moreover, since the soft closing cap 5 is sleeved on the spherical joint 3A at the upper end of the connecting rod 3, even if the tubular body 1 is displaced or the connecting rod 3 is eccentric, the soft closing cap 5 and the partition 2 can be secured. The sealing effect is safer and more reliable.

Claims

权 利 要 求 书 Claim
1. 一种自动平衡浮子式安全输液管， 包括墨菲斯管管体 （1 )， 其特征在于： 所述 的管体（1 ) 内设有水平隔板 （2)， 隔板 （2 ) 的外缘与管体 （1 ) 的内壁之间密封连接； 在隔板 （2) 中部设有通孔 （2A)， 在通孔 （2A) 内设有连杆 （3 ), 在连杆 （3) 外壁与 通孔 （2A) 内壁之间设有液体通道 (4)； 在隔板 （2) 上部的连杆 （3 ) 端部设有球形连 接头 （3A)， 球形连接头 （3A) 上套有软质封闭帽 （5 ); 在隔板 （2) 下部的连杆 （3 ) 端部连接有浮子 （6); 所述软质封闭帽 （5) 的下表面与隔板 （2) 的上表面之间接触密 封。 An automatic balance float type safe infusion tube, comprising a Murphys tube body (1), characterized in that: the tube body (1) is provided with a horizontal partition (2), a partition (2) The outer edge is sealed with the inner wall of the pipe body (1); a through hole (2A) is provided in the middle of the partition plate (2), and a connecting rod (3) is arranged in the through hole (2A) at the connecting rod ( 3) A liquid passage (4) is provided between the outer wall and the inner wall of the through hole (2A); a spherical joint (3A) is provided at the end of the connecting rod (3) at the upper portion of the partition (2), and the spherical joint (3A) The upper sleeve has a soft closing cap (5) ; the end of the connecting rod (3) at the lower part of the partition (2) is connected with a float (6); the lower surface of the soft closing cap (5) and the partition (2) ) The upper surface is in contact with the seal.
2. 根据权利要求 1所述的自动平衡浮子式安全输液管， 其特征在于： 所述的管体 ( 1 ) 是由上管体 （1A)和下管体 （IB) 组成， 在隔板 （2) 外围设有连接管 （2B)， 上、 下管体 （1A、 IB) 分别插接在连接管 （2B) 两边。  2. The self-balancing float type safe infusion tube according to claim 1, wherein: the tube body (1) is composed of an upper tube body (1A) and a lower tube body (IB), in the partition plate ( 2) There is a connecting pipe (2B) on the outer side, and the upper and lower pipe bodies (1A, IB) are respectively inserted on both sides of the connecting pipe (2B).
3. 根据权利要求 1所述的自动平衡浮子式安全输液管， 其特征在于： 所述的管体 ( 1 ) 内壁设有一圈水平凹槽 （1C)， 隔板 （2) 的外缘嵌设在该凹槽 （1C) 内。  3. The self-balancing float type safe infusion tube according to claim 1, wherein: the inner wall of the tube body (1) is provided with a horizontal groove (1C), and the outer edge of the partition plate (2) is embedded. In the groove (1C).
4. 根据权利要求 1至 3任一所述的自动平衡浮子式安全输液管， 其特征在于： 所 述的液体通道 （4) 为沿连杆 （3) 外壁表面轴向延伸的多条凹槽。  The self-balancing float type safe infusion tube according to any one of claims 1 to 3, characterized in that: the liquid passage (4) is a plurality of grooves extending axially along the outer wall surface of the connecting rod (3) .
PCT/CN2007/000607 2006-04-21 2007-02-25 Auto balance float type safety infusion tube WO2007121650A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2006100350956A CN100443129C (en) 2006-04-21 2006-04-21 Automatic balancing buoy type safe transfusion tube
CN200610035095.6 2006-04-21

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Publication Number Publication Date
WO2007121650A1 true WO2007121650A1 (en) 2007-11-01

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WO (1) WO2007121650A1 (en)

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CN104689418B (en) * 2015-03-30 2018-07-06 孙卫杰 A kind of medical infusion bottle is without dropping liquid autoalarm
CN104815366A (en) * 2015-05-29 2015-08-05 江苏康宝医疗器械有限公司 Disposable automatic liquid-stopping infusion apparatus
CN105521530A (en) * 2016-01-06 2016-04-27 日日新知识产权投资温州有限公司 Infusion apparatus with automatic infusion-stopping function

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CN100443129C (en) 2008-12-17

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