WO2015188576A1 - Appareil de perfusion à mise à l'air libre automatique, anti-bulle, à contrôle automatique du fluide, avec filtration de précision - Google Patents

Appareil de perfusion à mise à l'air libre automatique, anti-bulle, à contrôle automatique du fluide, avec filtration de précision Download PDF

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Publication number
WO2015188576A1
WO2015188576A1 PCT/CN2014/090237 CN2014090237W WO2015188576A1 WO 2015188576 A1 WO2015188576 A1 WO 2015188576A1 CN 2014090237 W CN2014090237 W CN 2014090237W WO 2015188576 A1 WO2015188576 A1 WO 2015188576A1
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WO
WIPO (PCT)
Prior art keywords
venting
self
liquid
drip chamber
bubble
Prior art date
Application number
PCT/CN2014/090237
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English (en)
Chinese (zh)
Inventor
孟庆松
李松华
丁仁雯
Original Assignee
山东新华安得医疗用品有限公司
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
Priority claimed from CN201410263819.7A external-priority patent/CN104001243A/zh
Priority claimed from CN201420318470.8U external-priority patent/CN203898838U/zh
Application filed by 山东新华安得医疗用品有限公司 filed Critical 山东新华安得医疗用品有限公司
Publication of WO2015188576A1 publication Critical patent/WO2015188576A1/fr

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    • 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
    • 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 invention relates to a self-venting and anti-bubble automatic liquid-repellent precision filtration infusion device, belonging to the field of medical appliances.
  • Infusion is a widely used treatment in clinical treatment, and safety is an indispensable condition for infusion.
  • the technical problem to be solved by the present invention is to provide a knot Simple, easy to use and safe self-venting anti-bubble automatic liquid stop precision filtration infusion set.
  • the self-venting and anti-bubble automatic liquid-repellent precision filtering infusion device of the invention comprises a bottle insertion needle, an infusion line, a drip bucket, a flow regulator, a conical joint and an intravenous infusion needle, and a self-venting device is arranged in the drip chamber.
  • the self-venting device comprises a self-exhaust pipe and an air filter membrane, and the lower end of the exhaust pipe is fixed at the bottom of the drip bucket, and the exhaust pipe has a gas exhausting hole communicating with the inner cavity of the dripper and the outside atmosphere, and the air filter membrane is fixed at the self.
  • an anti-bubble device is arranged on the inner side of the bottom end of the dripper, and the anti-bubble device is a hollow exhaust core, and a liquid inlet groove is arranged on the side wall of the exhaust core, and the liquid is discharged from the inner cavity of the exhaust core and the lower end of the drip bucket.
  • the pipe is connected, and the exhaust pipe, the bottom end of the drip bucket and the liquid outlet pipe at the lower end of the drip bucket are integrated, and a liquid stopping device is arranged on the upper part of the exhaust core.
  • the outlet end of the outlet pipe adopts a diameter expansion transition zone, the inner diameter of the expansion diameter transition zone is larger than the inner diameter of the upper outlet pipe, and the diameter expansion transition zone gradually increases from the top to the bottom, avoiding the outlet end of the outlet pipe and There is a significant radial drop in the pipe transfer position, preventing the gas from accumulating here due to the difference in surface tension between the liquid and the pressure in the area of the transfer position, and eliminating the hidden danger of the bubble entering the infusion line below the dripper. It is safe to use and does not need to be inverted with a dropper for easy operation.
  • the length of the expansion transition zone is not less than 1.5 mm, and the difference between the inner diameter of the top end of the expansion transition zone and the inner diameter of the bottom end is not more than 0.6 mm, and the outer diameter of the outlet end of the outlet pipe and the inner diameter of the bottom end of the expansion transition zone are The difference is not more than 0.6mm.
  • the liquid stopping device is a liquid filtering membrane, and the liquid filtering membrane is fixed above the exhaust core, and the liquid filtering membrane is a gas barrier and permeable membrane. When the liquid in the dripper is exhausted, the gas barrier is permeable. The membrane can block the air, prevent the entry into the exhaust core and the infusion line below, and finally achieve the liquid stopping function. Since the filter membrane has a filtering rate of ⁇ 99% for particles of 5 ⁇ m or more, the effect of the precision filtering solution can be achieved. Therefore, the infusion set does not need to be separately provided with the liquid filter, and the utility model can save cost.
  • inlet tanks There are three inlet tanks on the side wall of the exhaust core, and the horizontal angle between adjacent inlet tanks is 120°.
  • the liquid inlet tank in the exhaust core is evenly distributed, so that the liquid dripping into the dripper can flow evenly under the drip bucket. In the infusion line of the square, it is beneficial to vent the liquid flowing through the inlet tank.
  • the structure of the infusion device is simple and reasonable, and it is not necessary to invert or squeeze the dripper during use, and the flow regulator does not need to be closed, and the operation is convenient.
  • the air filter membrane and the exhaust through hole can smoothly discharge the air in the drip bucket, and the exhaust of the drip bucket.
  • the core, the liquid outlet and the exhaust core inlet tank prevent the generation or accumulation of air bubbles, and can discharge the gas in the gas-liquid mixture entering the dripper; the filtering effect of the liquid filtration membrane in the liquid stopping device is outstanding
  • the liquid stopping performance is reliable, safe and convenient to use, fast and reliable.
  • Figure 1 is a schematic view of the structure of the present invention
  • Figure 2 is an enlarged schematic view of the bottom end of the drip bucket of Figure 1.
  • the self-venting anti-bubble automatic liquid-repellent precision filtration infusion set includes a bottle insertion needle 1, an infusion line 2, a drip bucket 3, a flow regulator 11, a conical joint 12 and an intravenous infusion needle 13, and drops
  • the bucket 3 is provided with a self-venting device, and the self-venting device includes a self-exhaust pipe 5 and an air filter membrane 4, and is fixed at the bottom of the drip bucket 3 from the lower end of the exhaust pipe 5, and has a connection drip chamber 3 from the exhaust pipe 5
  • the air passage membrane 6 of the cavity and the outside atmosphere, the air filter membrane 4 is fixed on the top of the exhaust pipe 5, and the anti-bubble device is arranged on the inner side of the bottom end of the drip bucket 3, and the anti-bubble device is a hollow exhaust core 9, the exhaust core 9
  • the side wall is provided with a liquid inlet tank 8, and the inner cavity of the exhaust core 9 communicates with the liquid outlet pipe 10 at the lower end of the drip bucket 3, the exhaust core 9, the bottom end
  • the outlet end of the outlet pipe 10 adopts an expanded diameter transition zone 14, the inner diameter of the expanded diameter transition zone 14 is larger than the inner diameter of the upper outlet pipe, and the expanded diameter transition zone 14 gradually increases from the top to the bottom to prevent accumulation of bubbles or Entering the infusion line below the dripper 3;
  • the length of the expanded diameter transition zone 14 is not less than 1.5 mm, and the difference between the inner diameter of the top end of the expanded diameter transition zone 14 and the inner diameter of the bottom end is not more than 0.6 mm, and the outlet end of the outlet pipe 15 is outside the port
  • the difference between the inner diameter of the bottom end of the diameter and the extended diameter transition zone 14 is not more than 0.6 mm;
  • the liquid stopping device 7 is a chemical liquid filtering membrane, and the chemical liquid filtering membrane is fixed above the exhaust core 9, and the chemical liquid filtering membrane is gas barrier.
  • the water permeable filter membrane; the inlet tank 8 on the side wall of the exhaust core 9 are uniformly distributed with three, and the horizontal angle between the adjacent inlet tanks 8 is
  • the insertion needle 1 is inserted into the infusion bottle, the inverted bucket 3 does not need to be inverted, and the flow regulator 11 does not need to be closed.
  • the liquid medicine flows into the drip chamber 3 through the infusion line 2, and the air in the drip chamber 3 passes through the air.
  • the filter membrane 4 and the vent hole are discharged, and the chemical liquid flows into the drip chamber 3 first to drop onto the gas permeable membrane, and the filter buffer of the gas permeable membrane contacts the exhaust core 9, due to the surface tension of the liquid and the gas.
  • the invention has a simple structure, and the gas in the gas-liquid mixture in the drip chamber 3 can be smoothly discharged through the liquid inlet groove 8 on the side wall of the exhaust core 9, and the liquid flows into the liquid discharge pipe 10 at the lower end of the drip bucket 3 through the exhaust core 9.
  • the expanded diameter transition zone 14 provided at the outlet pipe 10 can prevent the air bubbles from accumulating or entering the infusion pipeline below the drip bucket 3, is safe to use, and does not need to be inverted when the dripper 3 is used, and the flow regulator 11 does not need to be closed, and the operation is convenient;
  • a liquid stopping device 7 ie, a gas barrier permeable membrane
  • the gas barrier permeable membrane can block air and prevent entry into the exhaust core 9 and below. Infusion The function of the pipeline finally reaches the liquid stopping function, and the gas barrier permeable membrane can also play the role of precision filtering liquid medicine, and it is not necessary to separately arrange the liquid medicine filter to realize the dual use of materials and materials, thereby saving the cost.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (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)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L'invention concerne un appareil de perfusion à mise à l'air libre automatique, anti-bulle, à contrôle automatique de fluide, avec filtration de précision, dont la chambre compte-gouttes (3) est pourvue d'un dispositif de mise à l'air libre automatique ; le dispositif de mise à l'air libre automatique comprend un tube de mise à l'air libre automatique (5) et une membrane de filtration d'air (4) ; l'extrémité inférieure du tube de mise à l'air libre automatique (5) est fixée au fond de la chambre compte-gouttes (3) et est pourvue d'une mise à l'air libre par un trou (6) qui y est aménagé pour interconnexion de la cavité intérieure de la chambre compte-gouttes (3) avec l'air extérieur ; la membrane de filtration d'air (4) est fixée à la partie supérieure du tube de mise à l'air libre automatique (5) ; un dispositif anti-bulle est disposé à l'intérieur du fond de la chambre compte-gouttes ; le dispositif anti-bulle est un noyau de mise à l'air libre creux (9) ; une gorge d'entrée de liquide (8) est prévue sur la paroi latérale du noyau de mise à l'air libre (9) ; la cavité intérieure du noyau de mise à l'air libre (9) communique avec un tube de sortie de liquide (10) à l'extrémité inférieure de la chambre compte-gouttes (3) ; le noyau de mise à l'air libre (9), l'extrémité inférieure de la chambre compte-gouttes (3) et le tube de sortie de liquide (10) à l'extrémité inférieure de la chambre compte-gouttes (3) font appel à une structure intégrée ; un dispositif de contrôle de fluide (7) est disposé au-dessus du noyau de mise à l'air libre (9). La présente invention peut être utilisée sans retournement ou écrasement de la chambre compte-gouttes (3) ou fermeture d'un régulateur de débit (11), ce qui est commode à mettre en œuvre ; la membrane de filtration (4) et la mise à l'air libre par le tronc (6) peuvent avec succès évacuer l'air se trouvant dans la chambre compte-gouttes (3), et le noyau de mise à l'air libre (9) et la sortie de liquide de la chambre compte-gouttes (3) et la gorge d'entrée de liquide (8) du noyau de mise à l'air libre (9) empêchent la production et l'accumulation de bulles et évacuent l'air se trouvant dans le mélange gaz-liquide pénétrant dans la chambre compte-gouttes (3).
PCT/CN2014/090237 2014-06-14 2014-11-04 Appareil de perfusion à mise à l'air libre automatique, anti-bulle, à contrôle automatique du fluide, avec filtration de précision WO2015188576A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201410263819.7 2014-06-14
CN201410263819.7A CN104001243A (zh) 2014-06-14 2014-06-14 自排气防气泡自动止液精密过滤输液器
CN201420318470.8 2014-06-14
CN201420318470.8U CN203898838U (zh) 2014-06-14 2014-06-14 自排气防气泡自动止液精密过滤输液器

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WO2015188576A1 true WO2015188576A1 (fr) 2015-12-17

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106860977A (zh) * 2017-04-06 2017-06-20 张金铭 一种自动止液过滤装置
CN107970498A (zh) * 2016-10-21 2018-05-01 上海康德莱企业发展集团股份有限公司 一种偏心自排气滴斗
CN107970499A (zh) * 2016-10-21 2018-05-01 上海康德莱企业发展集团股份有限公司 一种偏心自排气输液器
CN109758639A (zh) * 2019-03-01 2019-05-17 常州市第一人民医院 抗返流可排气型留置针
CN110841136A (zh) * 2019-10-29 2020-02-28 北京来普惠康医学技术有限公司 一种用于非重力输液器的多功能安全部件
KR20200134647A (ko) * 2019-05-23 2020-12-02 위더스 주식회사 의료용 드립챔버
CN113368335A (zh) * 2021-06-05 2021-09-10 浙江康泰医疗器械有限公司 一种多功能输液器
WO2022076325A1 (fr) * 2020-10-05 2022-04-14 Mobile I.V. Systems, LLC Chambre compte-gouttes avec évent et arrêt automatiques

Citations (8)

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US5423346A (en) * 1994-03-03 1995-06-13 Ivac Corporation Fluid container shut off valve
CN101879340A (zh) * 2010-07-14 2010-11-10 汪贤宗 一种自动排气式输液输血器
CN202161626U (zh) * 2011-06-11 2012-03-14 李林风 一种改进排气管结构的安全输液器
CN102631733A (zh) * 2012-05-10 2012-08-15 浙江康泰医疗器械有限公司 自动排气自动止液防回血高速精密型智能安全输液器
CN202859776U (zh) * 2012-10-12 2013-04-10 上海宝舜医疗器械有限公司 一种输液器的滴斗和输液软管的连接组件
CN103301524A (zh) * 2013-06-14 2013-09-18 山东新华安得医疗用品有限公司 一次性自动止液自动排气输液器
CN104001243A (zh) * 2014-06-14 2014-08-27 山东新华安得医疗用品有限公司 自排气防气泡自动止液精密过滤输液器
CN203898838U (zh) * 2014-06-14 2014-10-29 山东新华安得医疗用品有限公司 自排气防气泡自动止液精密过滤输液器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423346A (en) * 1994-03-03 1995-06-13 Ivac Corporation Fluid container shut off valve
CN101879340A (zh) * 2010-07-14 2010-11-10 汪贤宗 一种自动排气式输液输血器
CN202161626U (zh) * 2011-06-11 2012-03-14 李林风 一种改进排气管结构的安全输液器
CN102631733A (zh) * 2012-05-10 2012-08-15 浙江康泰医疗器械有限公司 自动排气自动止液防回血高速精密型智能安全输液器
CN202859776U (zh) * 2012-10-12 2013-04-10 上海宝舜医疗器械有限公司 一种输液器的滴斗和输液软管的连接组件
CN103301524A (zh) * 2013-06-14 2013-09-18 山东新华安得医疗用品有限公司 一次性自动止液自动排气输液器
CN104001243A (zh) * 2014-06-14 2014-08-27 山东新华安得医疗用品有限公司 自排气防气泡自动止液精密过滤输液器
CN203898838U (zh) * 2014-06-14 2014-10-29 山东新华安得医疗用品有限公司 自排气防气泡自动止液精密过滤输液器

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107970498A (zh) * 2016-10-21 2018-05-01 上海康德莱企业发展集团股份有限公司 一种偏心自排气滴斗
CN107970499A (zh) * 2016-10-21 2018-05-01 上海康德莱企业发展集团股份有限公司 一种偏心自排气输液器
CN107970499B (zh) * 2016-10-21 2023-11-21 上海康德莱企业发展集团股份有限公司 一种偏心自排气输液器
CN107970498B (zh) * 2016-10-21 2023-11-21 上海康德莱企业发展集团股份有限公司 一种偏心自排气滴斗
CN106860977A (zh) * 2017-04-06 2017-06-20 张金铭 一种自动止液过滤装置
CN109758639A (zh) * 2019-03-01 2019-05-17 常州市第一人民医院 抗返流可排气型留置针
KR20200134647A (ko) * 2019-05-23 2020-12-02 위더스 주식회사 의료용 드립챔버
KR102240665B1 (ko) 2019-05-23 2021-04-15 위더스 주식회사 의료용 드립챔버
CN110841136A (zh) * 2019-10-29 2020-02-28 北京来普惠康医学技术有限公司 一种用于非重力输液器的多功能安全部件
WO2022076325A1 (fr) * 2020-10-05 2022-04-14 Mobile I.V. Systems, LLC Chambre compte-gouttes avec évent et arrêt automatiques
CN113368335A (zh) * 2021-06-05 2021-09-10 浙江康泰医疗器械有限公司 一种多功能输液器

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