CN201806996U - Blood-back prevention infusion apparatus capable of automatically venting - Google Patents

Blood-back prevention infusion apparatus capable of automatically venting Download PDF

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Publication number
CN201806996U
CN201806996U CN2010205442513U CN201020544251U CN201806996U CN 201806996 U CN201806996 U CN 201806996U CN 2010205442513 U CN2010205442513 U CN 2010205442513U CN 201020544251 U CN201020544251 U CN 201020544251U CN 201806996 U CN201806996 U CN 201806996U
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CN
China
Prior art keywords
dropping funnel
liquid medicine
air
venting
needle
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Expired - Lifetime
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CN2010205442513U
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Chinese (zh)
Inventor
简玉梅
饶平华
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JIANGXI HONGDA MEDICAL EQUIPMENT GROUP CO Ltd
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JIANGXI HONGDA MEDICAL EQUIPMENT GROUP CO Ltd
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Priority to CN2010205442513U priority Critical patent/CN201806996U/en
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Publication of CN201806996U publication Critical patent/CN201806996U/en
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Abstract

The utility model discloses a blood-back prevention infusion apparatus capable of automatically venting, which comprises a bottle stopper puncture outfit protecting jacket, a bottle stopper puncture outfit, an air filter, a drip hopper, a flow regulator, a liquid medicine filter, a disposable intravenous infusion needle and the like. The blood-back prevention infusion apparatus capable of automatically venting is characterized in that a precise liquid medicine filtering membrane is arranged at the bottom end in the drip hopper, a concave cavity is processed in the middle of a baseboard in the drip hopper, an annular plane is processed on the periphery of the concave cavity of the baseboard, the precise liquid medicine filtering membrane is tightly sealed on the annular plane of the baseboard through hyperacoustic or high frequency heat sealing, and the concave cavity of the baseboard enable the liquid medicine which flows through the precise liquid medicine filtering membrane to be fully filtered. An automatic venting device comprising a vent plug, the air filter and a venting needle is arranged on the drip hopper. The utility model is the infusion apparatus which can automatically vent during transfusion, can automatically stop the flow of the liquid medicine, prevents blood from flowing back, simplifies operating steps of the venting, reduces the working strength of medical care personnel, has simple structure and is safe and reliable.

Description

A kind of automatic exhausting anti-blood backflow infusion apparatus
Technical field
This utility model relates to the aseptic medical equipment that is used for the clinical transfusion purposes, especially relates to a kind of have automatic vent and the automatic transfusion device that ends liquid blood return prevention function.
Background technology
At present, the general infusion set that medical field is commonly used is formed by bottle plug puncture unit protective sleeve, bottle plug puncture unit, transfusion tubulature, aerofluxus tubulature, air filter, dropper, dropping funnel, flow regulator, transfusion long duct, liquid medicine filter and disposable use venoclysis needle.When general infusion set has just begun in transfusion, must be by manually squeezing dropping funnel, medicinal liquid could be introduced in the dropping funnel from infusion bottle, enter the process of dropping funnel at medicinal liquid from dropper by pipeline, medicinal liquid is discharged the gas in the dropping funnel downwards the formation gas-liquid mixture easily and is entered in the long transfusion catheter, therefore produce bubble, simultaneously, because the surface tension effects of transfusion long duct inwall, inwall at the transfusion long duct adsorbs a spot of bubble easily, the process of getting rid of bubble is comparatively difficult, time-consuming and loaded down with trivial details, if bubble enters in patient's body, easily causes harm such as aeroembolism.So, medical personnel are before infusing, must be artificial with the emptying as much as possible of the bubble in the transfusion device long duct, common artificial deflated method is: after bottle plug puncture unit is inserted transfusion bottle stopper, earlier dropping funnel is hung upside down, squeeze dropping funnel with hands simultaneously, medicinal liquid is entered in the dropping funnel, after treating that certain amount of fluid is full of dropping funnel, put down dropping funnel, just most bubble may be got rid of, but have a spot of minute bubbles to be adsorbed on the inwall of transfusion long duct, medical personnel are again with finger springing transfusion long duct, the bubble of absorption could slowly rise in the dropping funnel, the process of this artificial aerofluxus bubble is not only loaded down with trivial details but also time-consuming, in the working strength that increases medical personnel, also is unfavorable for promptly infusing and giving emergency treatment to a patient.
And in the clinical transfusion process, medical personnel's labor intensity is very big, common medical personnel will look after the transfusion of patient in several wards, usually occur failing in time to observe the phenomenon that the infusion bottle inner liquid medicine has been totally lost and has not in time been changed infusion bottle or extract infusion needle because of medical personnel, patient or family numbers of patients, this can cause blood to go back up in a whole set of transfusion organ pipe, or liquid level descended low and causes gas to enter human body causing adverse consequencess such as aeroembolism, brought heavy mental burden for medical personnel, patient or family numbers of patients.
Therefore, in clinical transfusion operation, uses a kind of have the automatic vent function and end the transfusion device of liquid blood return prevention function automatically just particularly important.
Summary of the invention
The purpose of this utility model be to provide a kind of can automatic vent in infusion process, medicinal liquid automatically stop solution flow, prevent that blood from refluxing, simple in structure, safe and reliable transfusion device.
The purpose of this utility model is achieved in that this utility model comprises the bottle plug puncture unit protective sleeve; bottle plug puncture unit; the aerofluxus tubulature; air filter; dropper; dropping funnel; flow regulator; the transfusion long duct; liquid medicine filter and disposable use venoclysis needle; the left end that covers at the dropping funnel of dropping funnel is processed with liquid injection device; feature is: the bottom in dropping funnel is equipped with the precision liquid medicine filter membrane; the centre of the base plate in dropping funnel is processed with the matrix chamber; around the matrix chamber of base plate, be processed with ring-like plane; the precision liquid medicine filter membrane fits tightly on the ring-like plane of base plate through ultrasonic or high frequency heat seal, and the matrix chamber of base plate can make the medicinal liquid of the precision liquid medicine filter membrane of flowing through be filtered fully.
Cover at dropping funnel the automatic exhaust device of being made up of incorporate venting plug, air filter and exhaust needle is installed, exhaust needle is passed down through the dropping funnel lid and is close to the dropping funnel inwall and is positioned at dropping funnel, be provided with an exhaust needle endoporus that is communicated with and supplies circulation of air with the air filtration hole at the middle part of exhaust needle, be fixed with on the top of exhaust needle and be positioned at dropping funnel and cover air filter above the end, be provided with in the bottom in the air filtration hole of air filter and can filter the air filtration film that enters air in the dropping funnel by the exhaust needle endoporus, prevent that antibacterial and dust from entering; Be fixed with in the upper end of air filter and can cover or open the venting plug in air filtration hole.
The operation principle of precision liquid medicine filter membrane: when the medicinal liquid of infusion bottle is totally lost when finishing, medicinal liquid liquid level in the dropping funnel descends gradually, when the liquid level of medicinal liquid drops to the position of precision liquid medicine filter membrane, tiny and the air negative pressure principle because of the aperture of precision liquid medicine filter membrane, can stop air to pass through the precision liquid medicine filter membrane, thereby can prevent in the air admission infusion pipeline, can prevent from effectively to reach the purpose of ending the liquid blood return prevention automatically in blood backflow and the air admission patient body.
The operation principle of automatic exhaust device: in the process that transfusion operation begins, discharge the gas in the dropping funnel automatically, it can effectively prevent the generation of bubble and prevent that bubble from entering in the transfusion long duct, make the process of transfusion aerofluxus bubble not only easy but also quick.
This utility model is to have set up to have on the basis of traditional disposable infusion set to prevent that blood backflow and bubble from entering the precision liquid medicine filter membrane and the automatic exhaust device with energy degassing function of human body.This utility model in use, with the transfusion set operating procedure is the same, do not change operator's use habit, also can reduce the loaded down with trivial details step that manually squeezes dropping funnel aerofluxus bubble, can prevent again simultaneously that blood from going back up in a whole set of transfusion organ pipe, or liquid level descended low and causes gas to enter human body causing adverse consequencess such as aeroembolism, eliminated the mental burden of medical personnel, patient or family numbers of patients, really accomplished safe infusion.
When this utility model uses, whether the venting plug of confirming automatic exhaust device earlier is opened, bottle plug puncture unit is inserted in the infusion vessel bottle stopper, do not need to squeeze dropping funnel with hands, need not hang upside down dropping funnel, medicinal liquid enters in the dropping funnel automatically, and the air in the dropping funnel is all discharged by automatic exhaust device, and the liquid level of medicinal liquid constantly rises, medicinal liquid enters in the transfusion long duct again, flow out from venoclysis needle needle tubing endoporus, get rid of bubble automatically, close flow regulator, close the venting plug of automatic exhaust device, vein according to a conventional method punctures, open flow regulator, regulate and drip speed, get final product normal infusion.Among this process, also bubble-free sneaking in the whole communication path, bubble can directly not enter as general infusion set in the transfusion long duct, thereby prevent that effectively bubble from producing, when transfusion finished, the precision liquid medicine filter membrane was had an effect, thereby stoped the air admission infusion pipeline, reach and end liquid blood return prevention function automatically, can effectively prevent in blood backflow and the air admission patient body.
Therefore, the utlity model has following advantage: 1, in transfusion operation process in early stage, need not squeeze dropping funnel can introduce medicinal liquid in the dropping funnel, simplify the bleeding step, alleviate medical personnel's working strength, it solves existing transfusion device and steeps the problem loaded down with trivial details, that lose time of working in infusion process because of aerofluxus; 2, need not hang upside down dropping funnel can discharge the gas in the dropping funnel automatically, can prevent that bubble from producing and prevent that bubble from entering in the infusion pipeline, and the liquid level in the dropping funnel can be controlled at a certain level altitude automatically, prevents that the liquid level in the dropping funnel is too high, is difficult to observe medicine liquid droplet speed; 3, after the medicinal liquid infusion in the medicinal liquid bottle finishes, the precision liquid medicine filter membrane can prevent that blood from refluxing, stop to cause blood to go back up in a whole set of transfusion organ pipe because of in time not pulling out infusion needle, or liquid level descended low and caused gas to enter human body and caused adverse consequencess such as aeroembolism, removed the patient and in infusion process, entered the worry that human body causes adverse consequencess such as aeroembolism because of gas, can prevent simultaneously that transfusion from finishing back blood backflow and entering in the transfusion device pipeline, cause lacking safety guarantee, healthcare givers or patient and family members' mental burden and heavily wait problem.4, the precision liquid medicine filter membrane prevents that to the medicinal liquid secondary filter diameter is imported in the human body greater than the granule foreign of 5 μ m in the medicinal liquid, has avoided the formation of thrombosis.5, can the complete infusion of the medicinal liquid in the dropping funnel is thorough, avoid liquid waste.6, simple, safe and reliable, the easy processing of product structure, the step that simplifies the operation does not change operator's use habit, can be widely used in clinical.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the amplification profile sketch map of a-quadrant among Fig. 1;
Fig. 3 is the generalized section of dropping funnel and automatic exhaust device.
The specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing this utility model is described in further detail.
This utility model comprises bottle plug puncture unit protective sleeve 1; bottle plug puncture unit 2; aerofluxus tubulature 3; air filter 4; dropper 9; dropping funnel 10; transfusion long duct 11; flow regulator 12; following liquid injecting piece 13; outer cone joint 14 and disposable use venoclysis needle 15; transfusion tubulature 16; left end on the dropping funnel lid 8 of dropping funnel 10 is processed with liquid injection device 6; in the bottom of dropping funnel 10 precision liquid medicine filter membrane 5 is installed; the centre of the base plate 19 in dropping funnel 10 is processed with matrix chamber 17; around the matrix chamber 17 of base plate 19, be processed with ring-like plane 18; precision liquid medicine filter membrane 5 fits tightly on the ring-like plane 18 of base plate through ultrasonic or high frequency heat seal, and the matrix chamber 17 of base plate 19 can make the medicinal liquid of the precision liquid medicine filter membrane 5 of flowing through be filtered fully.
On dropping funnel lid 8, be equipped with by incorporate venting plug 20, the automatic exhaust device 7 that dropping funnel air filter 23 and exhaust needle 25 are formed, exhaust needle 25 is passed down through dropping funnel lid 8 and is close to dropping funnel 10 inwalls and is positioned at dropping funnel 10, be provided with an exhaust needle endoporus 24 that is communicated with and supplies circulation of air with air filtration hole 22 at the middle part of exhaust needle 25, be fixed with on the top of exhaust needle 25 and be positioned at the dropping funnel air filter 23 that dropping funnel covers 8 upper end, be provided with in the bottom in the air filtration hole 22 of dropping funnel air filter 23 and can filter the air filtration film 21 that enters air in the dropping funnel 10 by exhaust needle endoporus 24, prevent that antibacterial and dust from entering; Be fixed with the venting plug 20 that can cover or open air filtration hole 22 in the upper end of dropping funnel air filter 23.

Claims (2)

1. automatic exhausting anti-blood backflow infusion apparatus; comprise bottle plug puncture unit protective sleeve (1); bottle plug puncture unit (2); aerofluxus tubulature (3); air filter (4); dropper (9); dropping funnel (10); transfusion long duct (11); flow regulator (12); following liquid injecting piece (13); outer cone joint (14) and disposable use venoclysis needle (15); transfusion tubulature (16); left end on the dropping funnel lid (8) of dropping funnel (10) is processed with liquid injection device (6); it is characterized in that: precision liquid medicine filter membrane (5) is installed in the bottom of dropping funnel (10); the centre of the base plate (19) in dropping funnel (10) is processed with matrix chamber (17); matrix chamber (17) at base plate (19) is processed with ring-like plane (18) on every side; precision liquid medicine filter membrane (5) fits tightly on the ring-like plane of base plate (18) through ultrasonic or high frequency heat seal, and the matrix chamber (17) of base plate (19) can make the medicinal liquid of the precision liquid medicine filter membrane (5) of flowing through be filtered fully.
2. automatic exhausting anti-blood backflow infusion apparatus as claimed in claim 1, it is characterized in that: on dropping funnel lid (8), be equipped with by incorporate venting plug (20), the automatic exhaust device (7) that dropping funnel air filter (23) and exhaust needle (25) are formed, exhaust needle (25) is passed down through dropping funnel lid (8) and is close to dropping funnel (10) inwall and is positioned at dropping funnel (10), be provided with an exhaust needle endoporus (24) that is communicated with and supplies circulation of air with air filtration hole (22) at the middle part of exhaust needle (25), be fixed with the dropping funnel air filter (23) that is positioned at dropping funnel lid (8) upper end on the top of exhaust needle (25), be provided with in the bottom in the air filtration hole (22) of dropping funnel air filter (23) and can filter the air filtration film (21) that enters air in the dropping funnel (10) by exhaust needle endoporus (24), prevent that antibacterial and dust from entering; Be fixed with the venting plug (20) that can cover or open air filtration hole (22) in the upper end of dropping funnel air filter (23).
CN2010205442513U 2010-09-27 2010-09-27 Blood-back prevention infusion apparatus capable of automatically venting Expired - Lifetime CN201806996U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101954135A (en) * 2010-09-27 2011-01-26 江西洪达医疗器械集团有限公司 Automatic exhaust blood-return-resistant infusion apparatus
CN103495224A (en) * 2013-09-26 2014-01-08 淮安市恒春医疗器材有限公司 Liquid-stopping tank-type automatic exhaust liquid-stopping infusion apparatus
CN105498033A (en) * 2015-07-25 2016-04-20 胡绍勤 Infusion container capable of realizing precision filtration
CN105944176A (en) * 2016-07-13 2016-09-21 魏获生 Safe infusion apparatus capable of randomly placing normal infusion
CN106726564A (en) * 2016-12-30 2017-05-31 浙江华福医用器材有限公司 Molten medicine pin
CN110812586A (en) * 2019-12-13 2020-02-21 湖南平安医械科技有限公司 Disposable automatic exhaust precise filtering infusion apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101954135A (en) * 2010-09-27 2011-01-26 江西洪达医疗器械集团有限公司 Automatic exhaust blood-return-resistant infusion apparatus
CN103495224A (en) * 2013-09-26 2014-01-08 淮安市恒春医疗器材有限公司 Liquid-stopping tank-type automatic exhaust liquid-stopping infusion apparatus
CN105498033A (en) * 2015-07-25 2016-04-20 胡绍勤 Infusion container capable of realizing precision filtration
CN105944176A (en) * 2016-07-13 2016-09-21 魏获生 Safe infusion apparatus capable of randomly placing normal infusion
CN106726564A (en) * 2016-12-30 2017-05-31 浙江华福医用器材有限公司 Molten medicine pin
CN106726564B (en) * 2016-12-30 2023-09-22 浙江华福医用器材有限公司 Medicine dissolving needle
CN110812586A (en) * 2019-12-13 2020-02-21 湖南平安医械科技有限公司 Disposable automatic exhaust precise filtering infusion apparatus

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Granted publication date: 20110427

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