CN104288857A - Medical infusion device - Google Patents

Medical infusion device Download PDF

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Publication number
CN104288857A
CN104288857A CN201410502947.2A CN201410502947A CN104288857A CN 104288857 A CN104288857 A CN 104288857A CN 201410502947 A CN201410502947 A CN 201410502947A CN 104288857 A CN104288857 A CN 104288857A
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CN
China
Prior art keywords
liquid
infusion
left chamber
chamber
hole
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Granted
Application number
CN201410502947.2A
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Chinese (zh)
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CN104288857B (en
Inventor
谢安军
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Shandong hongchuang Technology Co.,Ltd.
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谢安军
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Priority to CN201410502947.2A priority Critical patent/CN104288857B/en
Publication of CN104288857A publication Critical patent/CN104288857A/en
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16831Monitoring, detecting, signalling or eliminating infusion flow anomalies
    • A61M5/1684Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/36Devices 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

Abstract

The invention discloses a medical infusion device. The medical infusion device comprises a liquid storage box, a partition plate, an air guide tube, a liquid level sensor, an air inlet valve, a motor and a controller. The liquid storage box is divided into a left cavity and a right cavity through the partition plate, the volume of the left cavity is larger than that of the right cavity, a communicating hole is formed in the bottom of the partition plate, the air guide tube is of a funnel shape, the end with a larger opening is located at the bottom of the left cavity, the other end of the air guide tube is located outside the top of the left cavity, a liquid adding hole is formed in the top of the left cavity, a detachable plug is arranged in the liquid adding hole, an air inlet is formed in the top of the right cavity, an infusion hole is formed in the bottom of the right cavity, and a rubber plug is arranged in the infusion hole. The medical infusion device further comprises a bottle stopper puncture device, a drip chamber, a flow speed adjuster, a liquid medicine filter, an infusion hose and a vein needle. By means of the medical infusion device, liquid medicine can drip stably at a constant speed no matter the infusion speed is high or low.

Description

A kind of medical infusion device
Technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of medical infusion device.
Background technology
Medical infusion bottle be for patient infusion fashionable dress the bottle of the liquid of medical configuration in defeated human body.Transfusion device be for venous transfusion through aseptic process, the common disposable medical treatment consumptive materials of setting up passage between vein and medicinal liquid.Generally connected to form by intravenous needle, helmet, infusion tube, liquid medicine filter, flow regulator, dropping funnel, bottle plug puncture unit, air inlet pipe, air filter.Under atmospheric pressure effect, the infusion tube that in infusion bottle, liquid runs down is thinner flows into dropping funnel, and when dropping funnel water column pressure is greater than venous pressure, the liquid runs down flexible pipe in bottle flows into vein.The sterilization effect duration of medical worker's preoperation inspection disposable transfusion device and packaging are with or without gas leakage and other exceptions, take out transfusion device, by cone joint partial insertion infusion bottle, hang infusion bottle on transfusion pole, be vented to medicinal liquid and flow to tube for transfusion lower end, fasten actuator, again intravenous needle is thrust the vein disinfected, after fixing, untie tourniquet, adjustment flow velocity.
There is following problem in existing transfusion device: first, medicinal liquid flow velocity time incipient in tube for transfusion is very fast, along with medicinal liquid flows out, fluid column in bottle is in a slight decrease, overhead gas volume slightly becomes large, pressure slightly reduces, the total pressure of bottle mouth position is made to be slightly smaller than external atmosphere pressure, air just supplements by outer atmospheric pressure from air inlet pipe press-in bottle, the pressure of bottle mouth position is made to remain essentially in an atmospheric pressure, medicinal liquid can at the uniform velocity stably be dripped, minimizing gradually not with bottle herb liquid changes again. and but when starting in bottle the pressure of gas be approximately an atmospheric pressure, the pressure of bottle mouth position is greater than an atmospheric pressure, so always drip very fast in a period of time started, easily bring discomfort to patient body.Second, when transfusion speed is very fast, the liquid level short time in infusion bottle changes greatly, because air inlet pipe is arranged on bottle plug puncture unit, the inlet channel of air inlet pipe is very thin, air just cannot be entered in infusion bottle by air inlet pipe timely and supplement, thus makes that change during the pressure at mouth of infusion bottle place instead of constant, therefore there will be the phenomenon of dripping that medicinal liquid cannot be at the uniform velocity stable.
When how to ensure transfusion, no matter transfusion speed is fast, or slowly, and medicinal liquid can both at the uniform velocity stable dripping be the technical problem of a very worth research and solution.
Current clinical transfusion device, because do not have can the device of fixed placement venipuncture needle, nurse is before vascular puncture, during to point of puncture skin degerming, venipuncture needle, be suspended on drip stand, easily fall and stab nurse and patient, and causing the easy contaminated defect of venipuncture needle.
Further, need to add medicine in addition in infusion process cumbersome.
Summary of the invention
The technical problem to be solved in the present invention: the first, existing transfusion device is within a period of time started, and medicinal liquid always drips very fast, cannot at the uniform velocity stable dripping, and easily brings discomfort to patient body; And when transfusion speed is very fast, also easily there is the phenomenon of dripping that medicinal liquid cannot be at the uniform velocity stable.Second, current clinical transfusion device, because do not have can the device of fixed placement venipuncture needle, nurse is before vascular puncture, during to point of puncture skin degerming, venipuncture needle, be suspended on drip stand, easily fall and stab nurse and patient, and causing the easy contaminated defect of venipuncture needle.3rd, need to add medicine in addition in infusion process cumbersome.
In order to solve above technical problem, technical scheme of the present invention is as follows: a kind of medical infusion device, comprises liquid storage box body, dividing plate, airway, liquid level sensor, intake valve, motor, controller; Liquid storage box body is divided into left chamber, right chamber by described dividing plate; The volume of left chamber is greater than the volume of right chamber; The bottom of described dividing plate is provided with intercommunicating pore;
Described airway is funnel-form, and one end that opening is larger is positioned at the bottom of left chamber, and the other end is positioned at outside the top of left chamber; Port outside the top that airway is positioned at left chamber is provided with intake valve; Described liquid level sensor is arranged on the centre position of the side wall inner surfaces of right chamber;
The signal that described liquid level sensor detects is input to controller, and controller controls motor and opens or cut out intake valve;
The top of described left chamber is provided with liquid filling hole, and described liquid filling hole is provided with detachable stopper; The top of described right chamber is provided with air inlet; The bottom of described right chamber arranges infusion hole, and described infusion hole is provided with rubber closure;
Also comprise bottle plug puncture unit, dropping funnel, flow regulator, liquid medicine filter, infusion tube, intravenous needle; One end of described infusion tube arranges bottle plug puncture unit, and the other end arranges intravenous needle; Described infusion tube is arranged dropping funnel, flow regulator, liquid medicine filter.
Also comprise chemical feed pipe, sponge spheroid; Described dropping funnel is provided with chemical feed pipe, and chemical feed pipe is provided with dismountable lid; Described sponge spheroid is arranged on above described infusion tube.
The technical scheme be more preferably further, described controller adopts AT89S51 single-chip microcomputer.
The technical scheme be more preferably further, the volume of described left chamber is 800 milliliters, and the volume of right chamber is 10 milliliters.
The device that liquid storage box body, dividing plate, airway form is referred to as: device for storing liquid;
The device that bottle plug puncture unit, dropping funnel, flow regulator, liquid medicine filter, infusion tube, intravenous needle form is referred to as: infusion part.
Compared with prior art, beneficial effect of the present invention: the first, a kind of medical infusion device that the present invention proposes infuse start most very short time medicinal liquid just can at the uniform velocity stable dripping, discomfort can not be brought to patient body; The second, even if transfusion speed is very fast, medicinal liquid still can at the uniform velocity stable dripping; 3rd, infusion hole is provided with rubber closure, can ensures that bottle plug puncture unit is not fixedly connected with infusion hole like this, the words that infusion part has been gone bad can be easy to replace, and the infusion apparatus product of prior art can substitute the infusion part in the present invention; 4th, the difference of infusion part of the present invention and existing transfusion device is exactly: be provided with air inlet pipe above the bottle plug puncture unit of existing transfusion device, also air filter is provided with above air inlet pipe, air inlet pipe part and the air filter part of production of existing transfusion device are very complicated, present invention eliminates the complexity that air inlet pipe and air filter greatly reduce production technology; 5th, airway is that funnel-form is conducive to more air and enters in left chamber, thus makes the liquid level of right chamber almost constant, almost invariable; 6th, adopt liquid level sensor to detect, the data that controller detects according to liquid level sensor, control opening and closedown of intake valve rapidly, the liquid level of right chamber can be made to change very little, almost invariable.7th, nurse before vascular puncture, during to point of puncture skin degerming, venipuncture needle is inserted in sponge spheroid, avoid and venipuncture needle is suspended on drip stand, easily fall and stab nurse and patient, and cause venipuncture needle easily this technical problem contaminated.8th, can be easy to add medicine by dropping funnel in infusion process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is existing transfusion device and infusion bottle connection diagram (existing transfusion is all adopted in this way).
Wherein, 1 is liquid filling hole; 2 is air inlets; 3 is airways; 4 is intercommunicating pores; 5 is infusion holes; 6 is bottle plug puncture units; 7 is dropping funnels; 8 is flow regulators; 9 is liquid medicine filters; 10 is intravenous needles; 11 is liquid level sensors; 12 is infusion bottles; 13 is transfusion devices; 14 is chemical feed pipes, and 15 is sponge spheroids.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 2, existing infusion method is all directly be inserted into by the bottle plug puncture unit of transfusion device in input bottle, at the uniform velocity stable in order to realize transfusion, existing conventional thought is all the structure updating transfusion device, the present invention breaks the normal procedure thinking, have employed device for storing liquid, is poured in device for storing liquid by the medicinal liquid in infusion bottle, no longer attention is placed on above transfusion device, but realizes the at the uniform velocity stable of transfusion by device for storing liquid.
Embodiment 1:
As shown in Figure 1: a kind of medical infusion device, liquid storage box body, dividing plate, airway 3, liquid level sensor, intake valve, motor, controller is comprised; Liquid storage box body is divided into left chamber, right chamber by dividing plate; The volume of left chamber is greater than the volume of right chamber; The bottom of dividing plate is provided with intercommunicating pore 4;
Described airway 3 is in funnel-form, and one end that opening is larger is positioned at the bottom of left chamber, and the other end is positioned at outside the top of left chamber; Port outside the top that airway 3 is positioned at left chamber is provided with intake valve; Described liquid level sensor is arranged on the centre position of the side wall inner surfaces of right chamber;
The signal that described liquid level sensor 11 detects is input to controller, and controller controls motor and opens or cut out intake valve;
The top of left chamber is provided with liquid filling hole 1, and described liquid filling hole 1 is provided with detachable stopper; The top of described right chamber is provided with air inlet 2; The bottom of described right chamber arranges infusion hole 5, and described infusion hole 5 is provided with rubber closure;
Also comprise bottle plug puncture unit 6, dropping funnel 7, flow regulator 8, liquid medicine filter 9, infusion tube, intravenous needle 10; One end of described infusion tube arranges bottle plug puncture unit, and the other end arranges intravenous needle; Described infusion tube is arranged dropping funnel, flow regulator, liquid medicine filter.
Also comprise chemical feed pipe 14, sponge spheroid 15; Dropping funnel is provided with chemical feed pipe 14, chemical feed pipe is provided with dismountable lid;
Described sponge spheroid 15 is arranged on above described infusion tube.
Embodiment 2: on the basis of embodiment 1, controller adopts AT89S51 single-chip microcomputer.
Embodiment 3: on the basis of embodiment 1, the volume of left chamber is 800 milliliters, and the volume of right chamber is 10ml.
Operation principle of the present invention: add medicinal liquid in left chamber, medicinal liquid in right chamber floods liquid level sensor, because the volume of right chamber is very little, therefore liquid level will soon maintain an equal level with the liquid level sensor of right chamber, once liquid level is lower than the height of liquid level sensor, controller controls intake valve and air is entered rapidly in left chamber by airway, the pressure located bottom left chamber can increase, at this moment the liquid in left chamber can enter into right chamber by intercommunicating pore, then right chamber liquid level and liquid level sensor maintain an equal level again, so the liquid level of right chamber is almost always invariable, therefore the pressure at infusion hole place is invariable, also the volume due to right chamber is very little, therefore very short time is started most in transfusion, medicinal liquid just can at the uniform velocity stable dripping.Owing to being specially provided with airway and airway is funnel-form, therefore air can be easy to enter in left chamber, even if therefore transfusion speed is very fast, the liquid level of right chamber also can keep constant.
Using method of the present invention: take off the detachable stopper that liquid filling hole is arranged, medicinal liquid is joined in left chamber, then detachable stopper is covered, bottle plug puncture unit is inserted in the rubber closure that infusion hole is arranged, at this moment the medicinal liquid in infusion tube can at the uniform velocity drip, and is then changed the speed of transfusion by flow regulator.

Claims (3)

1. a medical infusion device, is characterized in that, comprises liquid storage box body, dividing plate, airway, liquid level sensor, intake valve, motor, controller; Liquid storage box body is divided into left chamber, right chamber by described dividing plate; The volume of left chamber is greater than the volume of right chamber; The bottom of described dividing plate is provided with intercommunicating pore; Described airway is funnel-form, and one end that opening is larger is positioned at the bottom of left chamber, and the other end is positioned at outside the top of left chamber; Port outside the top that airway is positioned at left chamber is provided with intake valve; Described liquid level sensor is arranged on the centre position of the side wall inner surfaces of right chamber;
The signal that described liquid level sensor detects is input to controller, and controller controls motor and opens or cut out intake valve;
The top of described left chamber is provided with liquid filling hole, and described liquid filling hole is provided with detachable stopper; The top of described right chamber is provided with air inlet; The bottom of described right chamber arranges infusion hole, and described infusion hole is provided with rubber closure;
Also comprise bottle plug puncture unit, dropping funnel, flow regulator, liquid medicine filter, infusion tube, intravenous needle; One end of described infusion tube arranges bottle plug puncture unit, and the other end arranges intravenous needle; Described infusion tube is arranged dropping funnel, flow regulator, liquid medicine filter.
Also comprise chemical feed pipe, sponge spheroid;
Described dropping funnel is provided with chemical feed pipe, and chemical feed pipe is provided with dismountable lid;
Described sponge spheroid is arranged on above described infusion tube.
2. a kind of medical infusion device according to claim 1, is characterized in that, described controller adopts AT89S51 single-chip microcomputer.
3. a kind of medical infusion device according to claim 1, is characterized in that, the volume of described left chamber is 800 milliliters, and the volume of right chamber is 10 milliliters.
CN201410502947.2A 2014-09-27 2014-09-27 A kind of medical infusion device Active CN104288857B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201410502947.2A CN104288857B (en) 2014-09-27 2014-09-27 A kind of medical infusion device

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CN104288857A true CN104288857A (en) 2015-01-21
CN104288857B CN104288857B (en) 2016-08-24

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106929414A (en) * 2017-03-29 2017-07-07 朱郎平 Nutrient solution constant basis feedway needed for a kind of hematopoietic stem cell expansion culture medium
CN108245736A (en) * 2018-01-25 2018-07-06 郑州大学第附属医院 A kind of drug delivery device to internal diseased region conveying liquid
CN109331292A (en) * 2018-11-21 2019-02-15 中国人民解放军陆军军医大学第二附属医院 Movable infusion apparatus
CN109513071A (en) * 2018-12-18 2019-03-26 北京健康广济生物技术有限公司 A kind of protective device and its application method for preventing needle from stabbing
CN110152100A (en) * 2018-03-19 2019-08-23 宋美茹 A kind of nursing infusion device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1106190A1 (en) * 1999-12-09 2001-06-13 Nissho Corporation Medical tubing
CN1814314A (en) * 2005-02-04 2006-08-09 庄昌彬 Transfusion flow regulator
JP4646533B2 (en) * 2004-03-12 2011-03-09 川澄化学工業株式会社 Infusion set
CN201823115U (en) * 2010-09-15 2011-05-11 重庆医科大学附属儿童医院 Infusion bucket for newborn
CN202459583U (en) * 2012-03-01 2012-10-03 张艳玲 Intravenous drip bottle with two partitioning cavities
CN203609722U (en) * 2013-11-18 2014-05-28 梁小伟 Fluid infusion control device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1106190A1 (en) * 1999-12-09 2001-06-13 Nissho Corporation Medical tubing
JP4646533B2 (en) * 2004-03-12 2011-03-09 川澄化学工業株式会社 Infusion set
CN1814314A (en) * 2005-02-04 2006-08-09 庄昌彬 Transfusion flow regulator
CN201823115U (en) * 2010-09-15 2011-05-11 重庆医科大学附属儿童医院 Infusion bucket for newborn
CN202459583U (en) * 2012-03-01 2012-10-03 张艳玲 Intravenous drip bottle with two partitioning cavities
CN203609722U (en) * 2013-11-18 2014-05-28 梁小伟 Fluid infusion control device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106929414A (en) * 2017-03-29 2017-07-07 朱郎平 Nutrient solution constant basis feedway needed for a kind of hematopoietic stem cell expansion culture medium
CN108245736A (en) * 2018-01-25 2018-07-06 郑州大学第附属医院 A kind of drug delivery device to internal diseased region conveying liquid
CN108245736B (en) * 2018-01-25 2023-09-19 郑州大学第一附属医院 Drug delivery device for delivering liquid medicine to lesion part in human body
CN110152100A (en) * 2018-03-19 2019-08-23 宋美茹 A kind of nursing infusion device
CN109331292A (en) * 2018-11-21 2019-02-15 中国人民解放军陆军军医大学第二附属医院 Movable infusion apparatus
CN109331292B (en) * 2018-11-21 2021-02-12 中国人民解放军陆军军医大学第二附属医院 Movable infusion device
CN109513071A (en) * 2018-12-18 2019-03-26 北京健康广济生物技术有限公司 A kind of protective device and its application method for preventing needle from stabbing

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Inventor after: Yu Li

Inventor after: Wang Baodian

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Patentee before: Li Zhongcheng