WO2007121650A1 - Tube pour perfusion de sécurité du type à flotteur auto-équilibré - Google Patents

Tube pour perfusion de sécurité du type à flotteur auto-équilibré 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
Authority
WO
WIPO (PCT)
Prior art keywords
partition
wall
connecting rod
float type
tube
Prior art date
Application number
PCT/CN2007/000607
Other languages
English (en)
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/fr

Links

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.

Abstract

Un tube pour perfusion de sécurité du type à flotteur auto-équilibré comprend un tube morph (1). Un clapet de niveau (2) est placé dans le tube (1), le bord externe dudit clapet (2) étant hermétiquement relié à la paroi interne du tube (1). Un trou traversant (2A) est placé au centre du clapet (2), un pôle de connexion (3) est placé dans le trou traversant (2A), un passage pour le fluide (4) est réalisé entre la paroi externe du pôle de connexion (3) et la paroi interne du trou traversant (2A). Une tête de connexion à bille (3A) est placée sur l'extrémité du pôle de connexion (3) au-dessus du clapet (2), un chapeau de fermeture souple (5) forme une enveloppe sur la tête de connexion à bille (3A). Un flotteur (6) est relié à l'extrémité du pôle de connexion (3) sous le clapet (2). La surface inférieure du chapeau de fermeture souple (5) est hermétiquement soudée de manière permanente à la surface supérieure du clapet (2).
PCT/CN2007/000607 2006-04-21 2007-02-25 Tube pour perfusion de sécurité du type à flotteur auto-équilibré WO2007121650A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610035095.6 2006-04-21
CNB2006100350956A CN100443129C (zh) 2006-04-21 2006-04-21 自动平衡浮子式安全输液管

Publications (1)

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

Family

ID=37014339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/000607 WO2007121650A1 (fr) 2006-04-21 2007-02-25 Tube pour perfusion de sécurité du type à flotteur auto-équilibré

Country Status (2)

Country Link
CN (1) CN100443129C (fr)
WO (1) WO2007121650A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104689418B (zh) * 2015-03-30 2018-07-06 孙卫杰 一种医用输液瓶无滴液自动报警器
CN104815366A (zh) * 2015-05-29 2015-08-05 江苏康宝医疗器械有限公司 一次性自动止液输液器
CN105521530A (zh) * 2016-01-06 2016-04-27 日日新知识产权投资温州有限公司 一种自动止液输液器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5234414A (en) * 1992-09-28 1993-08-10 Hung Yung Feng Automatically closed dripping apparatus for intravenous administration
CN2168598Y (zh) * 1993-08-02 1994-06-15 曹浩明 安全输液器
CN2803405Y (zh) * 2005-07-05 2006-08-09 陈庆强 一种浮子式安全输液管

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0634826B2 (ja) * 1989-07-04 1994-05-11 テルモ株式会社 液体流通弁及びこれを備えた医療器具
CN2139833Y (zh) * 1992-10-09 1993-08-11 洪永丰 自动关闭式点滴注射器
BR9805362A (pt) * 1998-10-23 2000-05-23 Claudia De Oliveira Pereira Condutor sorìfero - dotado de válvula de suspensão de ar
WO2006026904A1 (fr) * 2004-09-09 2006-03-16 Jihan Cai Dispositif de perfusion sur jetable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5234414A (en) * 1992-09-28 1993-08-10 Hung Yung Feng Automatically closed dripping apparatus for intravenous administration
CN2168598Y (zh) * 1993-08-02 1994-06-15 曹浩明 安全输液器
CN2803405Y (zh) * 2005-07-05 2006-08-09 陈庆强 一种浮子式安全输液管

Also Published As

Publication number Publication date
CN1836745A (zh) 2006-09-27
CN100443129C (zh) 2008-12-17

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