CN105944178A - Auto-disposal auto-exhaustion anti-reflux needleless infusion set - Google Patents
Auto-disposal auto-exhaustion anti-reflux needleless infusion set Download PDFInfo
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- CN105944178A CN105944178A CN201610479163.1A CN201610479163A CN105944178A CN 105944178 A CN105944178 A CN 105944178A CN 201610479163 A CN201610479163 A CN 201610479163A CN 105944178 A CN105944178 A CN 105944178A
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- transfusion
- needle
- track
- draw point
- dropping funnel
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- 238000001802 infusion Methods 0.000 title claims abstract description 48
- 230000000151 anti-reflux effect Effects 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 claims abstract description 102
- 239000003814 drug Substances 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 230000006378 damage Effects 0.000 claims abstract description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 abstract description 11
- 206010033675 panniculitis Diseases 0.000 abstract description 5
- 210000004304 subcutaneous tissue Anatomy 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 229940079593 drug Drugs 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract 2
- 208000014674 injury Diseases 0.000 abstract 2
- 239000012528 membrane Substances 0.000 description 23
- 238000001914 filtration Methods 0.000 description 10
- 239000004531 microgranule Substances 0.000 description 8
- 230000005484 gravity Effects 0.000 description 6
- 238000005374 membrane filtration Methods 0.000 description 6
- 239000013618 particulate matter Substances 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000003437 trachea Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 2
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- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241001411320 Eriogonum inflatum Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 208000010513 Stupor Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
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- 210000003128 head Anatomy 0.000 description 1
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- 230000000977 initiatory effect Effects 0.000 description 1
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- 238000002372 labelling Methods 0.000 description 1
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- 230000002503 metabolic effect Effects 0.000 description 1
- 208000001297 phlebitis Diseases 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
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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
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- 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
- A61M5/168—Means 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
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
-
- 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
- A61M5/168—Means 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
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
-
- 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
- A61M5/385—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 using hydrophobic filters
-
- 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
- A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
-
- 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
- A61M2005/1623—Details of air intake
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/27—General characteristics of the apparatus preventing use
- A61M2205/276—General characteristics of the apparatus preventing use preventing unwanted use
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7536—General characteristics of the apparatus with filters allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7545—General characteristics of the apparatus with filters for solid matter, e.g. microaggregates
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)
- Emergency Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides an auto-disposal auto-exhaustion anti-reflux needleless infusion set facilitating clinical operation. The needleless infusion set has auto-exhaustion and automatic liquid stopping functions, an infusion hose replaces a steel needle, and the steel needle is prevented from piercing the blood vessel due to walking or other actions, resulting in that medical fluid flows into subcutaneous tissue to cause bulging or other injury. When the infusion set is in use, the steel needle is fixed on a base to avoid injury to medical staff. After use, the infusion set can be disposed automatically to avoid secondary utilization by lawbreakers. The other purpose of the infusion set is to improve a liquid medicine filter, the improved filter can filter out insoluble particles in the liquid medicine to the uttermost extent, and medication safety is assured.
Description
Technical field
The application relates to medical instruments field, is a kind of type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, belongs to
In field of medicaments.
Background technology
Transfusion is important means and the mode for the treatment of disease, and transfusion device is the most important instrument of transfusion.
The transfusion device kind commercially selling use at present is a lot, has general infusion set, has precision infusion set etc..
The major drawbacks of existing transfusion device mainly has the following aspects: 1, after plug perforator inserts medicine bottle, enter
Before pedestrian's body punctures, it is necessary to make the dropping funnel downcomer of transfusion device until intravenous needle fills medicinal liquid and there is no gas bubbles left.
Now need medical personnel's manual exhaust；2, change bottle not in time, or transfusion terminates, and pulls out pin not in time, easily occurs
Air is input to the danger of blood vessel or occurs blood backflow to cause the danger such as thrombosis；3, insert at plug perforator
During medicine bottle, bottle stopper rubber is easily generated rubber scraps, intravasation, causes inspection plug, initiation potential；4, existing
Syringe needle for transfusion device be mainly draw point syringe needle, patient transfusion time limbs stiff, the most easily produce rolling
Pin, i.e. transfusion draw point easily pierces through blood vessel, causes medicinal liquid to flow into subcutaneous tissue, needs medical personnel again to prick
Pin, had the most both added the workload of nurse, had also increased patient suffering, simultaneously because transfusion time is long, defeated
Liquid limbs dare not be movable, and limbs of patient torpor and swelling occurs, affects clinical effectiveness.
In order to solve the deficiency of above transfusion device, clinically transfusion device is carried out various improvement.Patent
CN201210142872.2, CN201220207483.9 are one air-vents of lateral layout at dropping funnel, when
When medicinal liquid drips in dropping funnel, the air in dropping funnel is discharged from side air-vent, the medicinal liquid in dropping funnel because gravity,
Gas in transfusion catheter is discharged at infusion needle, it is achieved self-bleeding process.Patent
CN201520632868.X and patent CN201210142872.2 and patent CN201220207483.9 more class
Seemingly, different is to devise a double-decker on patent CN201520632868.X dropping funnel, double-deck knot
Structure intermediate row has air-vent, is used for discharging gas in dropping funnel.The place that dropping funnel is connected with transfusion catheter has prominent
In dropping funnel, having a float bottom dropping funnel, when medicinal liquid is full of at the bottom of dropping funnel, float floats, with prominent transfusion
Leading separation, under medicinal liquid filter membrane, gas is automatically drained out from transfusion catheter.The meter of patent CN201320342693.3
If it is similar with patent CN201520632868.X, except for the difference that bottom patent CN201320342693.3 dropping funnel
With transfusion catheter junction without prominent, float changing only liquid filter membrane into, during transfusion, medicinal liquid is first by filter membrane
Gas discharge from the steam vent of dropping funnel wall.Gradually medicinal liquid fills medicinal liquid filter and only cavity between liquid filter membrane,
Gas under only liquid filter membrane and in conduit is discharged from conduit by the medicinal liquid through only liquid filter membrane.Patent
CN201110265858.7 and patent CN201120336872.7 devise a kind of automatic-exhaust transfusion device, profit
Forming malleation with liquid droping port dropping liquid inertia on dropping funnel at dropping funnel filter membrane epicoele, medicinal liquid is because gravity and malleation are through filter
Film, full bottom dropping funnel, the gas of filter membrane cavity of resorption is entered conduit from conduit projection, separately because of conduit projection
Hatch frame wide at the top and narrow at the bottom helps gas leniently opening part to discharge.Patent CN201320059546.5 describes
A kind of aerofluxus automatically stops liquid transfusion device, and filter membrane is removed dropping funnel unlike aforementioned patent by this patent, this
A little as existing transfusion device, on filter disc, except for the difference that open a steam vent, it is achieved aerofluxus automatically.
The most logical two ways of above patent realizes automatic liquid-stopping, and one is by stopping eluate conduit import,
Such as patent CN201520632868.X and CN201320342693.3 and CN201220407005.2；Two are
Form surface tension after logical filter membrane immersion, form negative pressure and reach the purpose of only liquid.Such as patent
CN201210142872.2、CN201220207483.9、CN201220207483.9、CN201110265858.7
With patent CN201120336872.7.
In injection, particulate matter refers to small that medicine pollutes in producing or applying through various approach
Grain impurity, its particle diameter, between 1 micron～50 microns, is that naked eyes are invisible, the having of the non-metabolic of movability
Evil particle (hereinafter referred to as microgranule).Substantial amounts of animal experiment and human dissection prove, microgranule can produce for the moment
Indiscoverable, potential serious harm.China's " pharmacopeia " specifies, diameter ＞ 10 μm in every milliliter of transfusion
Particulate matter must not exceed 20, the particulate matter of diameter ＞ 25 μm must not exceed 2.Injection
Agent particulate matter when dispatching from the factory is satisfactory, but during Clinical practice, particularly adds in clinic
Rubber microgranule, chips of glass microgranule, cotton fiber microgranule etc. is produced during medicine and transfusion operation.Facing at present
The transfusion device filter membrane that bed uses, can also can even if precision infusion set by the microgranule of diameter 10～15 μm
By diameter 5～10 μm.All these equal infusion reactions that can cause clinical unknown cause, very cause generation one
Reaction is lost after Xie.
The product of existing market sale has been made to improve by the application, solves in the market at the transfusion device used
Deficiency, mainly has the following aspects: the product after, improving adds at dropping funnel and arranges in a cylinder
Pore, when medicine bottle is inserted in air inlet pipe syringe needle puncture, medicinal liquid runs through transfusion catheter and enters dropping funnel, dropping funnel
Middle air, from upper air-vent discharges dropping funnel, has water proof air filtration in upper air-vent and junction, the dropping funnel seat of honour
Film, narrow wide V-arrangement opening under steam vent employing under dropping funnel, medicinal liquid is at dropping funnel lower end upwards sequel, at medicinal liquid
At the sequel initial stage, medicinal liquid because of surface tension, will not enter the transfusion being connected with lower steam vent in V-arrangement open bottom
In conduit, when the medicinal liquid of sequel reaches certain altitude, the part medicinal liquid in dropping funnel is because gravity is more than opening at V-arrangement
The tension force formed at Kou, so entering in conduit, discharges gas in conduit, it is achieved aerofluxus automatically.When
Because of the water-separating film at puncture needle, the catheter of transfusion system amount of draining, stops that medicinal liquid further flows out again, relays at dropping funnel
Continuous sequel, when end in contact under liquid level with upper air-vent, seals upper air-vent, makes the air can not be from upper air-vent
Discharging, in dropping funnel, air forms malleation, and now medicinal liquid can not flow out from infusion bottle, thus realizes only liquid.
After transfusion completes, in dropping funnel, sequel liquid level declines, and the gravity of medicinal liquid is gradually less than medicinal liquid at V-arrangement steam vent
Form tension force, so medicinal liquid stops further flowing into conduit, thus realize the only liquid after having infused；Two,
The mode that existing monofilm filters changes into double membrane filtration, and membrane aperture is less than 1.0 μm, and the filter after improvement can
Farthest to filter particulate matter, particularly filter the air inlet pipe syringe needle puncture when transfusion and insert medicine bottle
Time the rubber scraps of low particle diameter that produces and the sightless particulate matter of naked eyes produced during medicinal liquid compatibility or knot
Brilliant.Change double membrane filtration simultaneously into, can be prevented effectively from and make because aperture is little medicinal liquid flow velocity slow or microgranule obstruction filter
The defect in membrane filtration hole.On the other hand, after transfusion completes, because the aperture of filter membrane is less, filter membrane and medicinal liquid shape
Becoming tension force, after having infused, between dropping funnel and filter, the gravity deficiency of the residual liquor in conduit is so that medicinal liquid
Through filter membrane.Medicinal liquid between filter membrane and puncture flexible pipe, because of lower exhaustor medical liquid surface tension and filter membrane
Power, is allowed to continue to flow into blood vessel.Equally, vessel inner blood is because of the gravity of transfusion catheter herb liquid residual liquid
And the reverse tension of filter membrane, and blood vessel can not be flowed out.So can prevent blood vessel adverse current from causing phlebitis
Deng；Three, the transfusion device used clinically at present is hollow steel needle the most entirely, and during transfusion, limbs of patient can not be lived
Dynamic, the most easily produce needle roller, i.e. transfusion needle draw point and pierce through blood vessel and cause medicinal liquid to flow into subcutaneous tissue, need
Nurse has an acupuncture treatment again.This had both increased nurse job amount, also increased patient suffering.In order to reduce this misery,
Remaining needle occurs clinically.Because remaining needle needs special producing technique and requirement, increase clinical risk.Wear simultaneously
Should be noted that calparine cap produces bubble during thorn remaining needle, before transfusion terminates, want timely tube sealing.What is more important
Calparine cap, through repeatedly puncturing, has unnecessary chip and is directly entered blood vessel without filtration.So Clinical practice
There is certain limitation.Patent CN201220407005.2 is to be combined cleverly with tube for transfusion by remaining needle, but
After not solving retained needle puncture, the draw point extracted needs nurse to take away, deposits specially, in order to avoid accidentally injuring, makes
Become unnecessary cross infection.Still further aspect, the transfusion device that patent CN201220407005.2 describes is still
Take the class Y-shaped structure of remaining needle, need to be by Y shape part entirely with on adhesive plaster lid when transfusion, to avoid jag
The other end imprudence scraped, cause infusion tube to be extracted from blood vessel.This structure is entered by the application
Go improvement, the problem thoroughly solving patent CN201220407005.2.Meanwhile, will after transfusion completes,
Firmly sickle cuts off transfusion catheter, or the limit firmly twisting off infusion tube pedestal and card groove seat connects, and reaches to ruin
The purpose of bad transfusion device, the transfusion device used to prevent lawless person from reclaiming, repacking comes into the market,
The interests of the infringement people；Four, when patient fluid infusion, in order to alleviate the transfusion pressure to heart, medical care
Personnel carry out coutroi velocity often through regulation flow regulator, and exhort that patient flow can not be the fastest.Adjusting
During flow velocity, medical personnel carry out coutroi velocity by the lower number of medicinal liquid on water dropper in few drops bucket, and this process is often
A few minutes are spent, the plenty of time of waste medical personnel.Flow regulator is made an improvement by the application,
Controlled the thickness of transfusion catheter by tensioning screw, thus reach to control the purpose of flow, and tighten up spiral shell
Engraving the corresponding corresponding flow velocity of scale on Si, tensioning screw only need to be transferred to phase when transfusion by such medical personnel
The position answered, this process just can complete in tens seconds.It is greatly saved the time of medical personnel.
Summary of the invention
The purpose of the application is to provide type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device easy to use.This
Plant the work efficiency improving nurse that transfusion device can be big.The medical filtration mode of double membrane filtrations can ensure
Under conditions of flow velocity, make filter sizes be reduced to below 1 μm, so can filter most of insoluble
Microgranule, it is ensured that patient medication safety.Use infusion tube design and hollow steel needle design simultaneously, the most permissible
At utmost avoid draw point to wear out blood vessel, cause medicinal liquid to flow into subcutaneous tissue.The application another object is to carry
Can accurately know the simple mechanism of transfusion speed for a kind of logical rotary tightening screw, provide convenient for clinic.
The type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device of herein described one, mainly include 1 plug perforator, 2
Transfusion catheter, 3 dropping funnels, exhaustor on 4,5 stretch into the two-way water dropper in dropping funnel, 6 times exhaustors, 7 medicinal liquid mistakes
Filter, 8 flow regulators or liquid stopping clamp, 9 infusion tube sicklies, 10 transfusion needles, 11, flow control speed screw.
The air inlet of air pressure in guaranteed medicinal liquid bottle on plug perforator, when perforator pierces through plug, air inlet
One end is in medicinal liquid, and the other end in atmosphere, has air-filtering membrane in one end of air.Air is by filter
Membrane filtration, enters in medicinal liquid, it is ensured that journey malleation in medicinal liquid bottle, in order to medicinal liquid is the most smoothly
Flow downwardly in dropping funnel.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that dropping funnel upper cover and upper row
Trachea connects, and has air filter film in dropping funnel upper cover and upper exhaustor junction.Lead to two at dropping funnel lower cover
Connect.Two-way stretches into the part in dropping funnel equally distributed opening wide at the top and narrow at the bottom, is in the shape of the letter V, V-arrangement opening
Upper end seals, and shape is oneShape.So medicinal liquid can only be from the V-arrangement opening part inflow catheter of side, and not
The purpose of aerofluxus is not reached from top inflow catheter.Two-way part outside dropping funnel is connected with transfusion catheter,
Lower exhaustor is integrally formed, is also medicine liquid channel simultaneously.Its structural representation is as shown in Fig. 1 Fig. 3.Upper exhaustor
Length account for the 1/3～1/2 of dropping funnel length, upper exhaustor internal diameter is not more than 3mm, preferably 1mm, the most both
Can guarantee that aerofluxus, again can be when dropping funnel medicinal liquid liquid level reach exhaustor, the tension force that the mouth of pipe is formed is bigger, now
In dropping funnel, form malleation, make the stopping of lower of medicinal liquid.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that liquid medicine filter uses
Double film bilaterals filter.At filter upper cover, there is steam vent, pore has the ventilative film that blocks water, because medicinal liquid is all the time
Downwards, a small amount of gas in filter top cannot be discharged, and imprudence can enter human body.Row is had at filter upper cover
During the steam vent that pore fills, filter inner liquid medicine liquid level rises, and can be discharged by gas in filter.On steam vent
Equipped with the film that blocks water, so can ensure that the air draining in liquid medicine filter, and medicinal liquid will not overflow outside filter.
Having two-way to connect at filter lower cover, the structure of two-way has V-arrangement opening as the two-way at dropping funnel lower cover.?
Having the base sealing V-shaped part on V-arrangement opening, the end is connected with filter wall discharge orifice.Its structural representation such as Fig. 1 Fig. 4
Shown in.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that transfusion needle is without draw point
Transfusion needle, after it punctures intravasation, draw point is pulled out, and stays endovascular for infusion tube.It uses
Front-end geometry is illustrated as shown in Fig. 5 Fig. 6.So being possible to prevent draw point to puncture blood vessel, medicinal liquid flows into subcutaneous tissue.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that transfusion needle includes track
Fixed pedestal, track, draw point fixed pedestal, infusion tube, infusion tube pedestal, hollow transfusion draw point,
Sealing gasket, for card convex, hole clipping, track connection, draw point fixed pedestal handle, track fixed pedestal handle,
Draw point fixed pedestal wedge.Infusion tube is connected with hollow steel needle, and track connects track fixed pedestal and transfusion
Flexible pipe pedestal is connected, and draw point fixed pedestal is connected with track by draw point fixed pedestal wedge.Pedestal wedge is stuck in
Track, can slide in track and not run out of track, and during use, transfusion needle thrusts patient vessel, and nurse moves back
Go out puncture needle to track end, the hole clipping on draw point fixed pedestal handle is snapped onto track fixed pedestal hands
In handle card convex, in order to fixing draw point, prevent draw point from moving.Stay endovascular for infusion tube, medicinal liquid warp
Transfusion draw point flows into infusion tube and arrives Ink vessel transfusing again.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that after transfusion completes,
Firmly pull sickle to cut off transfusion catheter, or firmly twist off infusion tube pedestal and be connected with the track of card groove seat,
Reach to damage the purpose of transfusion device.So it is possible to prevent transfusion device to be utilized by lawless person's secondary, causes clinic
Danger, to ensure clinical safety.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that overlap on transfusion catheter
Having flow control speed screw, flow control speed screw is tensioning screw, and tensioning screw has the scale corresponding with flow,
By turning the degree of tightness of tensioning screw, read the numerical value on scale and know corresponding flow velocity.
Accompanying drawing explanation
The type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device structural representation of Fig. 1
Fig. 2 plug perforator structural representation
Fig. 3 dropping funnel structural representation
Fig. 4 filter structure schematic representation
Fig. 5 uses front without draw point infusion needle structural representation
Without draw point infusion needle structural representation after Fig. 6 use
Fig. 7 draw point head pedestal fixed wedge and infusion tube fixed pedestal track structure schematic diagram
Fig. 8 infusion tube sickle structural representation
Fig. 9 transfusion device flow controller open screw structural representation
Figure 10 transfusion device flow controller tightens up nut structure schematic diagram
The following is and combine figure the application specific embodiments is described further
Detailed description of the invention
1 be plug perforator in the drawings, 2 be transfusion catheter, 3 be dropping funnel, 4 be upper exhaustor, 5 for stretching
Enter the two-way water dropper in dropping funnel, 6 be lower exhaustor, 7 be liquid medicine filter, 8 be flow regulator, 9 be
Infusion tube sickle, 10 be transfusion needle, 101 be passage in medicinal liquid, 102 for containing air-filtering membrane
Air inlet, 401 it is connected with air filter film for dropping funnel upper cover and upper exhaustor, 601 is the lower row having V-arrangement opening
Trachea, 701 be liquid medicine filtering membrane, 702 be the formula air-filtering membrane that blocks water, 703 be dripping hole, 704 for there being V
The steam vent of shape opening, 1001 be track fixed pedestal, 1002 for track, 1003 for draw point fixed pedestal,
1004 be infusion tube, 1005 for hollow transfusion draw point, 1006 for sealing gasket, 1007 for card convex, 1008
For hole clipping, 1009 be track connection, 10010 infusion tube pedestals, 10011 be draw point fixed pedestal handle,
10012 be track fixed pedestal handle, 100301 for draw point fixed pedestal wedge, 901 for infusion tube otch,
1101 be open screw, 1102 for tightening up nut.
As shown in Figure 1 the type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device involved by the application mainly comprise with
Under several major part: 1 plug perforator, 2 transfusion catheters, 3 dropping funnels, exhaustor on 4,5 stretch into dropping funnel
In two-way water dropper, 6 times exhaustors, 7 liquid medicine filters, 8 flow regulators or liquid stopping clamp, 9 transfusions soft
Tubing cutter, 10 transfusion needles, 11, flow control speed screw.One end phase of plug perforator 1 and transfusion catheter 2
Even.Conduit 2 is connected with two-way, and another bucket of two-way stretches into formation water dropper in dropping funnel.Water dropper limit equipped with on arrange
Trachea, the length of aerofluxus is about the 1/2～1/3 of water dropper, and exhaustor aperture about 1mm, exhaustor is connected with upper cover
Place, equipped with the film that blocks water, this film that blocks water can cross air filtering, makes air free in and out, but can not pass through medicinal liquid.
So can guarantee that when dropping funnel herb liquid is too much, under steam vent, the tension force of the moisture film of interruption-forming is not enough to stop medicine
During liquid, the film that blocks water can stop outside liquid medicine spill dropping funnel.Dropping funnel lower end is connected with the two-way that can make lower air vent.
Two-way part outside dropping funnel is connected with transfusion catheter.Conduit is connected with liquid medicine filter, at liquid medicine filter
The other end be connected with conduit, on conduit position as shown in Figure 1 equipped with flow regulator or liquid stopping clamp and
Flow control speed screw.Finally at catheter tip equipped with transfusion needle.
Plug perforator in Fig. 2, has the opening of one and pin wall passage phase limit at pedestal, opening part equipped with
Gas filtration film, this gas filtration film can be ventilated body, but can not be passed through water.With plug perforator needle point
There is vent openings in close place, and gas is by after membrane filtration, by airway, close with needle point
Having vent openings, gas enters in medicinal liquid bottle, and to ensure malleation in medicine bottle, medicinal liquid may in this case
Flow down smoothly, enter transfusion device pipeline.
The organigram of dropping funnel in Fig. 3, dropping funnel upper cover is connected with upper exhaustor, in dropping funnel upper cover and upper aerofluxus
There is air filter film pipe junction, and the feature of filter membrane is, air can lead to, it is ensured that medicinal liquid and water can not pass through.
Air filter film opening part has a tegillum being connected with dropping funnel upper cover, and when lid covers, dropping funnel and the external world can not
Communicate, upper exhaustor can not aerofluxus, can be by the aerofluxus smoothly of upper exhaustor when opening.Upper exhaustor
Length accounts for the 1/3～1/2 of dropping funnel length, and upper exhaustor internal diameter is not more than 3mm, and at this moment preferably 1mm can
Ensure aerofluxus, again can be when dropping funnel medicinal liquid liquid level reach exhaustor, the tension force that the mouth of pipe is formed is bigger, now exists
Form malleation in dropping funnel, make the stopping of lower of medicinal liquid.It is connected with two-way at dropping funnel lower cover.Two-way stretches into dropping funnel
There is equally distributed opening wide at the top and narrow at the bottom interior portion distal end side, is in the shape of the letter V, and V-arrangement opening the widest part is about
It is 0.5～1.5mm, from opening the widest part to opening section start distance about 5～6.5mm.Two-way is uniformly divided
Cloth 3～5 such V-arrangement openings, seal in V-arrangement open upper end, and shape is oneShape.So medicinal liquid can only
From the V-arrangement opening part inflow catheter of side, and not from top inflow catheter, thus do not reach the purpose of aerofluxus.
Two-way part outside dropping funnel is connected with transfusion catheter, and lower exhaustor is integrally formed, and is also that medicinal liquid leads to simultaneously
Road.
Fig. 4 is the organigram of liquid medicine filter, and liquid medicine filter uses double film bilateral to filter.On filter
Having steam vent at lid, pore has the ventilative film that blocks water, is similar in dropping funnel exhaustor, different is
Liquid medicine filter, without the exhaustor extended, only has an opening, equipped with the film that blocks water on opening at upper cover.Defeated
Rise with filter inner liquid medicine liquid level during liquid, gas a small amount of for filter top is discharged from steam vent, and medicinal liquid is not
Can overflow outside filter.Two-way is had to connect at filter lower cover, the two-way one at the structure of two-way and dropping funnel lower cover
Sample has V-arrangement opening.Having the base sealing V-shaped part on V-arrangement opening, base is connected with filter wall fluid hole.
The gas of filter bottom, by V-arrangement perforate, is discharged at following connection conduit by transfusion.
Fig. 5 Fig. 6 is transfusion needle, and the structure of transfusion needle is similar to the structure of remaining needle, unlike remaining needle
Containing needle structure is similar to reversely foretell shape or Y shape, and the application uses rectilinear structure.Whole transfusion needle bag
Include track fixed pedestal, track, draw point fixed pedestal, infusion tube, infusion tube pedestal, hollow transfusion
Draw point, sealing gasket, for card convex, hole clipping, track connection, draw point fixed pedestal handle, track fixed pedestal
Handle, draw point fixed pedestal wedge.Infusion tube is connected with hollow steel needle, and track connects track fixed pedestal
Being connected with infusion tube pedestal, draw point fixed pedestal is connected with track by draw point fixed pedestal wedge.Pedestal
Wedge is stuck in track, can slide and not run out of track in track.During use, transfusion needle thrusts patient vessel,
Nurse exits puncture needle to track end, the hole clipping on draw point fixed pedestal handle is snapped onto track and fixes
In base handle card convex, in order to fixing draw point, prevent draw point from moving.Stay endovascular for infusion tube,
Medicinal liquid flows into infusion tube through transfusion draw point and arrives Ink vessel transfusing again.Figure such as Fig. 5 Fig. 6 before and after transfusion needle use.
Puncture draw point can individually be extracted after having pricked transfusion needle and infuse by so medical personnel, can keep away
Exempt from the draw point extracted to be not good at because need to individually deposit and stab medical personnel.It is connected between pedestal wedge card and track and shows
It is intended to such as Fig. 7.After making to be finished, firmly twist off infusion tube pedestal and be connected with the track of card groove seat, or use
The sickle as illustrated in figures 1 and 8 being loaded on transfusion catheter cuts off transfusion catheter, reaches to damage transfusion device
Purpose.So it is possible to prevent transfusion device to be utilized by lawless person's secondary, causes clinical risk, to ensure clinic
Safety.
Fig. 9 Figure 10 flow control speed screw, Fig. 9 is open screw, Figure 10 for tightening up nut, open screw with tighten up
Center is and the circular hole of transfusion catheter size, and transfusion catheter passes from circular hole.Logical rotary tightening nut, opens
Mouth screw does not suspend tightly, and middle conduit does not stops to be retracted, and diameter is more and more less, so flow velocity can be increasingly
Little.By tightening up nut labelling scale corresponding with flow it is known that flow velocity under various degree of tightness states,
Thus ensure drug safety.
Above content is to combine the further description that the application is made by specific embodiment, it is impossible to recognize
Determine the application be embodied as be confined to these explanations.Ordinary skill for the application art
For personnel, on the premise of conceiving without departing from the application, it is also possible to make some simple deduction or replace,
All should be considered as belonging to the protection domain of the application.
Claims (7)
1. a type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, mainly include 1 plug perforator, 2 transfusion catheters,
3 dropping funnels, exhaustor on 4,5 stretch into the two-way water dropper in dropping funnel, 6 times exhaustors, 7 liquid medicine filters, 8 streams
Amount actuator or liquid stopping clamp, 9 infusion tube sicklies, 10 transfusion needles, 11 flow control speed screws.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that on dropping funnel
Lid is connected with upper exhaustor, has air filter film in dropping funnel upper cover and upper exhaustor junction.At dropping funnel lower cover
It is connected with two-way.Two-way stretches into the part in dropping funnel equally distributed opening wide at the top and narrow at the bottom, is in the shape of the letter V,
V-arrangement open upper end seals.Two-way part outside dropping funnel is connected with transfusion catheter, and lower exhaustor is integrally formed,
Also it is medicine liquid channel simultaneously.Its structural representation is as shown in Fig. 1 Fig. 3.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that medicinal liquid mistake
Filter uses double film bilateral to filter.At filter upper cover, there is steam vent, pore has the ventilative film that blocks water, in filter
Having two-way to connect at device lower cover, the structure of two-way has V-arrangement opening as the two-way at dropping funnel lower cover.At V-arrangement
Having the base sealing V-shaped part on opening, the end is connected with filter wall discharge orifice.Its structural representation is as shown in Figure 4 and 1.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that transfusion needle
For without draw point transfusion needle, after it punctures intravasation, draw point is pulled out, and stays endovascular for infusion tube.
It uses front-end geometry to illustrate as shown in Fig. 5 Fig. 6.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that transfusion needle
Including track fixed pedestal, track, track fixed pedestal handle, draw point fixed pedestal, infusion tube, sky
The heart transfusion draw point, sealing gasket, card convex, hole clipping, track connection, infusion tube pedestal, draw point fixed pedestal
Handle, draw point fixed pedestal wedge.Infusion tube is connected with hollow steel needle, and track connects track fixed pedestal
Being connected with infusion tube pedestal, draw point fixed pedestal is connected with track by draw point fixed pedestal wedge.Pedestal
Wedge is stuck in track, can slide and not run out of track in track.During use, transfusion needle thrusts patient vessel,
Medical personnel exit puncture needle to track end, and the hole clipping on draw point fixed pedestal handle is snapped onto track
In fixed pedestal handle card convex, in order to fixing draw point, prevent draw point from moving.Stay endovascular soft for transfusion
Pipe, medicinal liquid flows into infusion tube through transfusion draw point, arrives Ink vessel transfusing.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that in transfusion
After completing, firmly pull sickle to cut off transfusion catheter, or firmly twist off infusion tube pedestal and card groove seat
Track connect, reach damage transfusion device purpose.
The most type self-destroyed automatic aerofluxus counterflow-preventing no-needle transfusion device, it is characterised in that in transfusion
Being cased with flow control speed screw on conduit, flow control speed screw is tensioning screw, tensioning screw has corresponding with flow
Scale, the logical degree of tightness turning tensioning screw, read the numerical value on scale and know corresponding flow velocity.
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| CN201610479163.1A CN105944178B (en) | 2016-06-22 | 2016-06-22 | Self-destruction type automatic exhaust anti-reflux needleless infusion apparatus |
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| CN201610479163.1A CN105944178B (en) | 2016-06-22 | 2016-06-22 | Self-destruction type automatic exhaust anti-reflux needleless infusion apparatus |
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| CN105944178A true CN105944178A (en) | 2016-09-21 |
| CN105944178B CN105944178B (en) | 2023-02-14 |
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Cited By (3)
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| CN107088241A (en) * | 2017-05-18 | 2017-08-25 | 盛林 | A kind of Novel anti-stab hinders precision filter infusion set |
| CN110169914A (en) * | 2019-06-27 | 2019-08-27 | 罗晨心 | The closed liquid dispenser of Dispoable medical |
| CN111250438A (en) * | 2020-03-11 | 2020-06-09 | 重庆市九龙坡区人民医院 | Novel keyboard disinfection and isolation device |
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|---|---|
| CN105944178B (en) | 2023-02-14 |
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