WO2007014520A1 - Dispositif d’infusion à changement automatique de fluide - Google Patents

Dispositif d’infusion à changement automatique de fluide Download PDF

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Publication number
WO2007014520A1
WO2007014520A1 PCT/CN2006/001884 CN2006001884W WO2007014520A1 WO 2007014520 A1 WO2007014520 A1 WO 2007014520A1 CN 2006001884 W CN2006001884 W CN 2006001884W WO 2007014520 A1 WO2007014520 A1 WO 2007014520A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin
infusion
tube
channel
air
Prior art date
Application number
PCT/CN2006/001884
Other languages
English (en)
Chinese (zh)
Inventor
Zhiguang Zhou
Original Assignee
Zhiguang Zhou
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 Zhiguang Zhou filed Critical Zhiguang Zhou
Publication of WO2007014520A1 publication Critical patent/WO2007014520A1/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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
    • 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
    • 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
    • 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
    • A61M5/38—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 hydrophilic or hydrophobic filters

Definitions

  • the utility model relates to an infusion set, in particular to a disposable intravenous automatic liquid exchange infusion device, belonging to the technical field of medical instruments. Background technique
  • the existing infusion sets need to call the medical staff to change the other bottles (bags) when they need to lose multiple bottles (bags).
  • a bottle (bag) of liquid most patients need to lose 2 to 5 kinds of liquid medicine, one patient loses a liquid medical staff to run 2 to 5 times, not only the workload is too tired, but also affect other patients rest. If the fluid change is not timely during the infusion, it will cause air to enter the infusion tube or the blood will flow back to the blood coagulation needle, which increases the difficulty of continuing the infusion work. In order to prevent this from happening, the patient or the accompanying staff can only pay attention to the change of the liquid and Preparing to call for medical staff at any time will undoubtedly increase their mental stress. Disclosure of invention
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide an automatic liquid exchange infusion device that does not require manual operation.
  • the present invention adopts the following technical solutions to achieve:
  • the utility model relates to an automatic liquid changing infusion device, which comprises an infusion tube pin, a drip pot, a drip speed regulator, an infusion tube and a needle, wherein the plurality of pins are continuous, and the lower part of the pin continues with infusion
  • Each of the infusion tubes is joined in a middle portion of one of the infusion tubes to be connected to a drip pot, and the pins are connected in series by an air guiding tube;
  • the needle has two independent passages inside, and the transverse air guiding tube is connected
  • the longitudinal infusion tube is connected to the fluid channel, the air channel inside the next pin and the liquid channel inside the upper pin are connected through the air tube between the pins, and the air inlet tube with the micro filter A pin is connected.
  • the drip pot has a spherical floating plug, which is made of non-toxic plastic.
  • the diameter of the floating plug is 4 ⁇ 5 mm, and the optimal diameter is 4 mm.
  • a temporary dosing hole is provided at the upper left of the drip pot, and the inner diameter of the hole is provided. Should be slightly larger than 5 mm, so that the spherical float can enter the drip pot.
  • the number of pins is two or more, and the optimal number of pins is three.
  • the utility model can set two or more pins according to actual needs, and each pin is connected together through an air guiding tube, and the air passage inside the next pin and the previous one are connected.
  • the liquid passage inside the pin is connected through the air pipe between the pins, and the intake pipe with the micro filter is connected to the first pin air passage.
  • each pin is inserted into the corresponding vial (bag) in reverse order, so that the infusion tube below the first pin is filled with liquid; when the first vial (bag) is filled, the vial (bag) The inside is filled with air, and the gravity of the liquid in the second bottle (bag) causes a negative pressure in the bottle (bag), and the negative pressure is transmitted to the first and second pins through the air passage of the second pin.
  • the airway between the first pin and the air in the first vial (bag) 1 form a suction force, and the air passes through the liquid channel of the first pin and passes through the first pin.
  • the airway between the second pin enters the airway in the second pin and enters the bottle (bag), the second bottle (bag) liquid begins to enter the human body, and so on, to achieve automatic liquid exchange
  • the function of the spherical float is floating on the liquid surface in the drip pot, which will sink as the liquid level drops. When the liquid is finished, the float will stop the outlet of the drip pot and the infusion will automatically stop, thus avoiding the air. Enter the infusion tube for safety protection.
  • Figure 1 is a schematic view of the structure of the present invention
  • a pin - 4 B air pipe - 53; drip pot 9;
  • the automatic liquid changing infusion device of the present invention comprises three infusion tube pins, an infusion tube, a drip pot 9, a drip speed adjuster 11 and a needle 12, wherein the A pins 4 and B are inserted.
  • the needles 5 are connected in series by the A air duct 43 ;
  • the B pins 5 and the C pins 6 are connected in series by the B air duct 53.
  • the lower part of the A pin 4 continues with the A infusion tube 44
  • the lower part of the B pin 5 continues with the B infusion tube 54
  • the lower part of the C pin 6 continues with the C infusion tube 64, the A infusion tube 44 and the C infusion tube 64 in the B infusion tube 54
  • the central confluence is a tube connected to the drip pot 9.
  • the drip pot 9 has a spherical floating plug 10 having a diameter of 4 mm.
  • a temporary dosing hole 91 is provided on the upper left side of the drip pot 9, and the inner diameter of the hole is slightly larger than 5 mm so that the floating plug 10 can This enters the drip pot 9.
  • the pin has two independent passages inside, the air passage connecting the transverse air tube is a gas passage, the liquid passage connecting the longitudinal infusion tube is a liquid passage, and the A pin liquid passage 42 and the B pin air passage 51 are connected through the A air guide tube 43;
  • the pin 5 and the C pin 6 are connected in series by the B air duct 53, and the B pin channel 52 and the C pin channel 61 are communicated through the B air duct 53, and the other channel inside the C pin 6 is C pin liquid passage 62;
  • the intake pipe 8 with the microfilter 7 is connected to the A pin air passage 41.
  • each pin When in use, each pin is inserted into the corresponding bottle (bag) to be inserted in reverse order, that is, the C pin 6 is inserted into the C bottle (bag) 3 and the B pin 5 is inserted into the B bottle (bag) 2, and finally A The pin 4 is inserted into the A vial (bag) 1 , and the A infusion tube 44 is filled with liquid; when the A vial (bag) 1 is filled, the bottle (bag) is filled with air, and the B bottle (bag) 2 The gravity of the internal drug solution causes a negative pressure to be generated in the bottle (bag), and the negative pressure is transmitted to the A airway tube 43 through the B-pin air channel 51, through the A-pin liquid channel and the A-vial (bag) 1 The air inside meets the suction force.
  • the air enters the B needle air passage 51 through the A air inlet tube 42 through the A air inlet tube 42 to enter the B medicine bottle (bag) 2, and the medicine in the B medicine bottle (bag) 2
  • the liquid starts to enter the human body, and so on, to realize the automatic liquid changing function during the infusion process; when there is the liquid medicine in the drip pot 9, the spherical floating plug 10 floats on the liquid surface, and it will decrease with the liquid level. Sinking, when the liquid is finished, it will drop the outlet of the drip pot 9 and the infusion will stop automatically, thus effectively preventing the air from entering the infusion tube and protecting it. use.
  • the utility model has the advantages that the prior art is insufficiently compensated, and the special design of the needle, the air guiding tube and the floating ball is realized, and the automatic infusion and liquid exchange without manual operation is realized, and the operation and use are convenient; in the process of infusion and liquid exchange
  • the bottles (bags) are exchanged one by one, and the liquid medicines of the bottles (bags) are not mixed, which not only increases the safety of the infusion, but also reduces the workload of the medical staff and improves the work efficiency;
  • the patient can fully rest during the process of automatic infusion and transfusion, which reduces the mental burden of the patient and the accompanying staff, and also reduces the flow of people in the ward, making the ward more quiet and clean, thus having a wide application value.

Landscapes

  • Health & Medical Sciences (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)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

La présente invention concerne un dispositif d’infusion à changement automatique de fluide qui comprend une aiguille d’insertion du tube d’infusion, une chambre compte-gouttes (9), un dispositif de contrôle de la vitesse du goutte à goutte (11), un tube d’infusion et une aiguille (12), dans lequel il y a deux aiguilles d’insertion ou plus, chaque aiguille d’insertion étant raccordée en série par un tube d’aération ; la portion inférieure de l’aiguille d’insertion est raccordée au tube d’infusion, chaque tube d’infusion converge vers un seul tube au niveau de l’un des tubes d’infusion, et ce tube d’infusion est raccordé à la chambre compte-gouttes ; l’intérieur de l’aiguille d’insertion a deux passages indépendants, le passage raccordé au tube d’aération est un passage de gaz, le passage raccordé au tube d’infusion est un passage de fluide, le passage de gaz de l’aiguille d’insertion suivante est raccordé au passage de fluide de l’aiguille d’insertion précédente par le tube d’aération entre les aiguilles d’insertion, un tube d’importation de gaz avec un filtre miniature est raccordé à la première aiguille d’insertion ; l’intérieur de la chambre compte-gouttes a un flotteur général (10), dont le diamètre est de 4 à 5 mm.
PCT/CN2006/001884 2005-08-02 2006-07-28 Dispositif d’infusion à changement automatique de fluide WO2007014520A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200520006246.6 2005-08-02
CNU2005200062466U CN2810615Y (zh) 2005-08-02 2005-08-02 自动换液输液器

Publications (1)

Publication Number Publication Date
WO2007014520A1 true WO2007014520A1 (fr) 2007-02-08

Family

ID=36936999

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/001884 WO2007014520A1 (fr) 2005-08-02 2006-07-28 Dispositif d’infusion à changement automatique de fluide

Country Status (2)

Country Link
CN (1) CN2810615Y (fr)
WO (1) WO2007014520A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107812271A (zh) * 2017-12-13 2018-03-20 浙江海洋大学 一种自动换液机
CN111135372A (zh) * 2020-01-14 2020-05-12 张凉英 一种医用逐瓶输液器
CN116510118A (zh) * 2023-04-20 2023-08-01 北京市肿瘤防治研究所 一种输液器的自动切换装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104162206B (zh) * 2014-08-12 2016-11-23 哈尔滨理工大学 一种患者手控更换输液的机械装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2259911Y (zh) * 1996-08-06 1997-08-20 马建华 一种具有安全装置的茂菲氏滴管
US6485454B1 (en) * 2000-10-13 2002-11-26 Edward Yang Automatic infusion set for continuously infusing liquid medicine of double bottles
CN2691606Y (zh) * 2003-10-21 2005-04-13 蒋云凯 自动换瓶连续输液器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2259911Y (zh) * 1996-08-06 1997-08-20 马建华 一种具有安全装置的茂菲氏滴管
US6485454B1 (en) * 2000-10-13 2002-11-26 Edward Yang Automatic infusion set for continuously infusing liquid medicine of double bottles
CN2691606Y (zh) * 2003-10-21 2005-04-13 蒋云凯 自动换瓶连续输液器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107812271A (zh) * 2017-12-13 2018-03-20 浙江海洋大学 一种自动换液机
CN107812271B (zh) * 2017-12-13 2024-02-06 浙江海洋大学 一种自动换液机
CN111135372A (zh) * 2020-01-14 2020-05-12 张凉英 一种医用逐瓶输液器
CN116510118A (zh) * 2023-04-20 2023-08-01 北京市肿瘤防治研究所 一种输液器的自动切换装置

Also Published As

Publication number Publication date
CN2810615Y (zh) 2006-08-30

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