CN106860949A - Automatic liquid-stopping transfusion apparatus - Google Patents
Automatic liquid-stopping transfusion apparatus Download PDFInfo
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- CN106860949A CN106860949A CN201710113526.4A CN201710113526A CN106860949A CN 106860949 A CN106860949 A CN 106860949A CN 201710113526 A CN201710113526 A CN 201710113526A CN 106860949 A CN106860949 A CN 106860949A
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- Prior art keywords
- liquid
- drop kettle
- ball float
- drop
- liquid device
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
- A61M5/40—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 low-level float-valve to cut off media flow from reservoir
-
- 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
- A61M2005/1401—Functional features
-
- 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
- A61M2205/33—Controlling, regulating or measuring
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of automatic liquid-stopping transfusion apparatus, including drop kettle, it has input port and delivery outlet, the drop kettle inwall is fixedly connected one and stops liquid device, the only liquid device is internally formed the plenum chamber of upper end closed and opening direction drop kettle output end, there is a ball float in the plenum chamber, the only liquid device internal cavity room lower end is funnel-form；The only liquid device outer wall forms first passage and second channel with the part do not fitted of drop kettle inwall, and the first passage and second channel are oppositely arranged, and only inlet opening, inlet opening Through-cavity room are provided with liquid device outside wall surface relatively in second channel.The present invention is after liquid drop is most, ball float isolation air enters the woven hose of connection drop kettle output end, first passage with there is certain liquid in second channel all the time and liquid liquid level is identical, play a part of sealing cavity room, cavity room pressure increases to form negative pressure, when dropping liquid return pressure is with negative-pressure balancing, dropping liquid backflow terminates, so as to play real anti-blood back effect.
Description
Technical field
The present invention relates to medical vein operating perfusion infuser technology, can be infused with anti-blood back automatic liquid-stopping more particularly, to one kind
Device.
Background technology
In treatment clinical course, many patients are frequently necessary to be infused, with by this treatment means of infusing
Treating disease.It is then desired to substantial amounts of use transfusion device.Present transfusion device is substantially disposable transfusion device, quiet for setting up
The medical disposable material of passage between arteries and veins and liquid, to preventing the cross-infection between patient from serving beneficial effect, however, making
There are problems that with these disposable transfusion devices it is more, along with medical personnel's labour intensity is very big, a usual medical personnel
The patient fluid infusion in multiple wards is looked after, usually occurs failing in time it was observed that defeated because of medical personnel, patient or family numbers of patients
Liquid bottle inner liquid medicine has been totally lost, it is impossible to is changed infusion bottle in time or is extracted the phenomenon of infusion niidl, causes blood samples of patients to go back up to defeated
In liquid device pipeline, various unnecessary influences are caused：Blood backflow easily blocks syringe needle, causes that liquid is stagnant to stop that treatment cannot be played
Effect also increases the working strength of medical personnel simultaneously；Backflow blood forms microthrombus in transfusion tube wall, feeds back the internal of patient
Embolism may be caused；Patient is easily nervous panic for transfusion blood back and there is larger mood to nursery work, to medical personnel with
Carry out unnecessary trouble.
Currently, common disposable medical transfusion device does not have self-closed to act at the end of infusion bottle and transfusion is exchanged, i.e.,
Without anti-blood back function, a large amount of infusion devices on anti-blood back effect are then occurred in that.Applying for a patent for anti-blood back also has
It is various, but these application structure of patent are complicated, and anti-blood back effect is poor, and what is had is just unable to reach the purpose of anti-blood back at all.When
Before have such design, a circular ball float is set in the drop cylinder of transfusion device, ball float can when having liquid the purpose is to drip in cylinder
To float, can fall to being dripped until blocking the liquid outlet of cylinder with the reductions ball float of liquid level in drop cylinder, but because ball float is smaller and
Relatively light, lower backwardness differs and surely just falls on the liquid outlet of drop cylinder again, and ball float can not effectively block going out for drop cylinder in use
Liquid mouthful, can still occur blood back phenomenon, and its safety is relatively low.
A kind of micropore blood returning preventing infusion of such as Chinese patent（The patent No.：201110126833.9）If, its close membrane
If thin, because periphery does not have stress, film cannot shape；If can shape just has certain thickness, by technique and structure institute
Limit, two impossible positive confinements of rigid face are dead, and institute's residual liquid will soon flow, and do not reach sustained release and prevent certain hour
Blood back.Other scheme reduces the speed of liquid using there is filter membrane, is actually unable to reach the effect of anti-blood back, if mistake
In the larger flow liquid of flow liquid or concentration more long, fenestra is easily blocked filter membrane, when next bottle is further continued for transfusion, is infused just not
Smoothness, flow velocity produces difficulty, so also has certain difficulty to sustained release anti-blood back.
A kind of anti-blood back infusion bottle of such as Chinese patent（The patent No.：201520048866.X ）, have buoyant thin slice,
Thin slice edge is provided with some pins, and pin is located between bottleneck inwall and bottle stopper, in the bottleneck of the bottle stopper insertion bottle
When pin be fixed between bottleneck inwall and bottle stopper, when having liquid in the flat bottle of infusing, thin slice is floated in a liquid, when liquid level declines
During the position normally floated to thin slice, with the decline of liquid level, thin slice can also follow liquid level to decline together, until liquid level is less than defeated
During the puncture outfit of liquid device, thin slice with will puncture outfit head parcel laminating, by transfusion device and air exclusion, reach the mesh of anti-blood back
's.The problem that the patent is primarily present is, when patient needs defeated more than many bottles of infusion bottle, now to need on each infusion bottle
It is required for that the device is installed, there is waste also difficult unified standard.
The content of the invention
Goal of the invention of the invention is：In view of the shortcomings of the prior art, there is provided a kind of automatic liquid-stopping transfusion apparatus, in liquid
After drop is most, there is certain liquid in the air at ball float isolation plenum chamber inner opening end all the time in first passage and second channel, and
The liquid level of this two passages liquid is identical, and air cannot enter back into drop kettle input from second channel into first passage, so as to rise
To double protection, anti-blood back effect is fundamentally played, security is good.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
Automatic liquid-stopping transfusion apparatus, including drop kettle, the drop kettle have input port and delivery outlet, it is characterised in that：In the drop kettle
Wall is fixedly connected one and stops liquid device, and the only liquid device is internally formed the cavity of upper end closed and opening direction drop kettle output end
, there is a ball float room in the plenum chamber, the only liquid device internal cavity room lower end is funnel-form；
The side of the only liquid device outer wall to be caved in and form first passage with drop kettle inwall, and the first passage starts from drop kettle input
Mouth terminates in drop kettle inwall bottom, and the middle hypomere of the only opposite side of liquid device outer wall caves in and leads to drop kettle inwall formation second
Road, the second channel starts from the cascaded surface that drop kettle inwall bottom terminates in hypomere in only liquid device outer wall opposite side, described first
Passage is oppositely arranged with second channel, and a feed liquor is provided with the relatively described only liquid device outside wall surface of the second channel
Hole, the inlet opening Through-cavity room.
As the preferred technical solution of the present invention, a catch is set in the plenum chamber, the setting of the catch is highly
Slightly less than at inlet opening, ball float is placed in the lower section of catch in plenum chamber, and multiple through holes have been uniformly arranged on the catch, through hole
Diameter of the diameter less than ball float.The design of catch, is in order to control the ball float can not to be floated to cavity top other positions, preferably
Limitation ball float domain of walker.
Further, the ball float with diameter greater than or equal to plenum chamber output end diameter.
Further, the ball float is spherical shape or inverted cone-shaped ball float.
Further, the float ball density is less than the density of liquid used by all transfusions, or less than the density of water.Beneficial to floating
Ball can be floated on liquid level.
Further, it is described drop kettle it is identical with the wall thickness of only liquid device outer wall, and using be free of plasticiser PET or
PP, the drop kettle outer wall uniform application layer of transparent or translucent ultraviolet resistant layer.The material of use effectively prevents plasticiser
Infringement Deng noxious material to human body, reduces the adsorptivity of medicine, beneficial to patient health and infusion safety；Drop kettle outer wall coating energy
Effectively meet the light-shading effect of pharmaceutical requirements.
Further, the first passage or the second channel correspondence cross section that liquid device outer wall caves in described only are circular arc
Shape or triangular shape.
In sum, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
After liquid drop is most, inlet opening cannot enter back into liquid to the present invention, and ball float is that ground floor is protected, and ball float is with plenum chamber
Liquid level fall, the openend blocked in plenum chamber is all closed so as to drip the passage below kettle delivery outlet, and air cannot enter
Enter to drip the woven hose of kettle delivery outlet connection, if second layer protection is that ball float cannot be blocked and liquid backflow phenomenon occurs, in drop kettle
The liquid level of remaining liquid remains identical and less than inlet opening in first passage and second channel that only liquid device is formed, now
Cavity room pressure increases to form negative pressure, and when liquid return pressure and negative-pressure balancing, dropping liquid backflow terminates, and reaches and real prevents back
The safety of blood effect and infusion process.Due to being provided with only liquid device, air can be effectively prevented to enter liquid-transport pipe-line so that doctor
Shield personnel are more flexible to terminating transfusion or the arrangement of time of replacing liquid, improve the operating efficiency of medical personnel.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment 1 of automatic liquid-stopping transfusion apparatus of the present invention；
Fig. 2 is the top plan view of drop kettle in Fig. 1 automatic liquid-stopping transfusion apparatus；
Fig. 3 is the A-A profiles of drop kettle in Fig. 2 automatic liquid-stopping transfusion apparatus；
Fig. 4 is that the schematic diagram that liquid is persistently instilled in kettle is dripped in Fig. 3 automatic liquid-stopping transfusion apparatus；
Fig. 5 is that the drop kettle inner liquid medicine of Fig. 3 automatic liquid-stopping transfusion apparatus drips most schematic diagram；
Marked in figure：10- bottle plug puncture units, 20- woven hoses, 30- three-way connections, 40- drops kettle, 50- flow regulators, 60- medicines
Liquid filter, 70- intravenous infusion needles, 80- air inlet pipe, 90- air cleaners, 41- input ports, 42- stop liquid device, 420- first
Passage, 421- second channels, 43- catch, 44- ball floats, 45- delivery outlets, 46- inlet openings, 47, plenum chamber.
Specific embodiment
Specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings, wherein identical in all accompanying drawings
Label represent same or similar part, the accompanying drawing in specification is reduced form, only for understanding concrete structure of the invention.
The following examples are only intended to illustrate the technical solution of the present invention more clearly, and can not limit the scope of the invention.
Embodiment 1
The specific embodiment of automatic liquid-stopping transfusion apparatus of the present invention as shown in Figure 1, Figure 2, Figure 3 shows, including bottle plug puncture unit 10, transfusion
Pipe 20, three-way connection 30, drop kettle 40, flow regulator 50, liquid medicine filter 60, intravenous infusion needle 70, air inlet pipe 80, air mistake
Filter 90, drop kettle 40 has input port 41 and delivery outlet 45, and three-way connection has input, output end and dosing mouth, and three connect
The input 41 of first 30 output end connection drop kettle 40, the delivery outlet 45 for dripping kettle 40 connects a woven hose 20.
The drop inwall of kettle 40 is fixedly connected one and stops liquid device 42, and the only liquid device 42 is internally formed upper end closed and opening court
To the plenum chamber 47 of the drop delivery outlet 45 of kettle 40, there are a ball float 44, the only internal cavity room 47 of liquid device 42 in the plenum chamber 47
Lower end is funnel-form；Cave in and form first passage 420, described first with drop kettle 40 inwall in the side of the only outer wall of liquid device 42
Passage 420 starts from drop kettle 40 input port and terminates in drop kettle 40 inwall bottom, the middle hypomere of the only opposite side of the outer wall of liquid device 42
Cave in and form second channel 421 with drop kettle 40 inwall, the second channel 421 starts from drop kettle 40 inwall bottom and terminates in only liquid device
The cascaded surface of hypomere in 42 outer wall opposite sides, the first passage 420 and second channel 421 are oppositely arranged, described the
A feed liquor 46, the Through-cavity room 47 of the inlet opening 46 are provided with the relatively described only outside wall surface of liquid device 42 of two passages 421.
One catch 43 is set in plenum chamber 47, and the setting of catch 43 is highly slightly less than at inlet opening 46, and ball float 44 is placed in
The lower section of catch in plenum chamber 47, has been uniformly arranged multiple through holes, the diameter of the diameter less than ball float of through hole on catch 43.Catch
43 design, is the more preferable limitation domain of walker of ball float 44 in order to control the ball float 44 can not to be floated to cavity top other positions.
Ball float 44 with diameter greater than or equal to plenum chamber openend diameter.When liquid drop is most, ball float can be made in pressure
The openend of plenum chamber is held under, it is to avoid air goes successively to.
Ball float 44 is spherical shape or inverted cone-shaped ball float.
As shown in Figure 4, Figure 5, the density of ball float 44 less than liquid used by all transfusions density, or less than the density of water, i.e.,
Requirement can be met, can be floated on liquid liquid level beneficial to ball float 44, when liquid drop is most, ball float can smoothly by plenum chamber openend
Block.
Drop kettle 40 is identical with the wall thickness of the only outer wall of liquid device 42, and using PET or PP without plasticiser, the drop kettle
40 outer wall uniform application layer of transparent or translucent ultraviolet resistant layer.The material of use effectively prevents the noxious materials such as plasticiser
Harm to human body, reduces the adsorptivity of medicine, beneficial to patient health and infusion safety；The drop outer wall coating of kettle 40 can effectively meet
The light-shading effect of pharmaceutical requirements.
First passage 420 or the correspondence of second channel 421 cross section that only outer wall of liquid device 42 caves in are arc-shaped or triangle
Shape.
As shown in Figure 1, Figure 4, Figure 5, automatic liquid-stopping transfusion apparatus of the invention, are on the basis of traditional infusion device, to drop
Kettle is improved, and is set in drop kettle and stops liquid device, and only liquid device 42 is internally formed upper end closed and opening is defeated towards drop kettle 40
There is a ball float 44 in the plenum chamber 47 of outlet 45, the plenum chamber 47, the only lower end of 42 internal cavity room of liquid device 47 is funnel
Shape；Only the outer wall of liquid device 42 and the part do not fitted of the drop inwall of kettle 40 form first passage 420 and second channel 421, and described the
One passage 420 is oppositely arranged with second channel 421, in the relatively described only outside wall surface of liquid device 42 of the second channel 421
On be provided with an inlet opening 46, the Through-cavity room 47 of the inlet opening 46.During patient's normal infusion, the liquid level of first passage 420 begins
Eventually higher than second channel 421 liquid level and higher than inlet opening 46, ball float 44 floats on liquid liquid level all the time, when medicine bag or medicine bottle medicine
When drop is most, ball float falls with liquid level, blocks the openend i.e. dropping liquid delivery outlet 45 of plenum chamber, and isolation air enters back into drop kettle
The woven hose 20 of 40 delivery outlets connection, the negative pressure formed below of woven hose 20 reaches the effect of automatic liquid-stopping；If ball float 44 cannot be blocked up
The firmly openend of plenum chamber 47, when there is liquid backflow phenomenon, due to remaining medicine in first passage 420 and second channel 421
The liquid level of liquid remains identical and less than inlet opening 46, plays a part of sealing cavity room 47, now pressure in plenum chamber 47
Increase forms negative pressure, and when dropping liquid return pressure is with negative-pressure balancing, dropping liquid backflow terminates, and reaches real anti-blood back effect and defeated
The safety of liquid process.Due to the effect of negative pressure, when dressing liquid again, after bottle plug puncture unit 10 is inserted into liquid, plenum chamber 47
Inside there is liquid to enter, due to the buoyancy of liquid, ball float 44 is slowly floated on liquid liquid level, liquid smoothly enters the drop delivery outlet of kettle 40
The woven hose 20 of 45 connections, so as to carry out normal infusion, without carrying out any artificial operation again, so as to improve medical personnel's
Operating efficiency, mitigates the working strength of medical personnel.Due to being provided with only liquid device 42, air can be effectively prevented to enter woven hose
Road so that medical personnel are more flexible to terminating transfusion or the arrangement of time of replacing liquid, improve the work effect of medical personnel
Rate.
Claims (7)
1. automatic liquid-stopping transfusion apparatus, including drop kettle（40）, the drop kettle（40）With input port（41）And delivery outlet（45）, it is special
Levy and be：The drop kettle（40）Inwall is fixedly connected one and stops liquid device（42）, the only liquid device（42）It is internally formed end seal
Close and be open towards drop kettle（40）Delivery outlet（45）Plenum chamber（47）, the plenum chamber（47）Inside there is a ball float（44）, it is described
Only liquid device（42）Internal cavity room（48）Lower end is funnel-form；
The only liquid device（42）Cave in and drop kettle the side of outer wall（40）Inwall forms first passage（420）, described first leads to
Road (420) starts from drop kettle（40）Input port（41）Terminate in drop kettle（40）Inwall bottom, the only liquid device（42）Outer wall it is another
The middle hypomere of side caves in and drop kettle（40）Inwall forms second channel（421）, the second channel starts from drop kettle（40）Inwall bottom
End terminates in only liquid device（42）The cascaded surface of hypomere in outer wall opposite side, the first passage（420）With second channel（421）It is
It is oppositely arranged, in the second channel（421）Relatively described only liquid device（42）An inlet opening is provided with outside wall surface（46）, institute
State inlet opening（46）Through-cavity room（47）.
2. automatic liquid-stopping transfusion apparatus according to claim 1, it is characterised in that：In the plenum chamber（47）It is interior that a gear is set
Piece（43）, the catch（43）Setting highly be slightly less than inlet opening（46）Place, ball float（44）It is placed in plenum chamber（47）Interior catch
（43）Lower section, the catch（43）On be uniformly arranged multiple through holes, the diameter of the diameter less than ball float (44) of through hole.
3. automatic liquid-stopping transfusion apparatus according to claim 1 and 2, it is characterised in that：The ball float（44）With diameter greater than
Or equal to plenum chamber（47）Output end diameter.
4. automatic liquid-stopping transfusion apparatus according to claim 3, it is characterised in that：The ball float（44）It is spherical shape or rounding
Taper ball float.
5. automatic liquid-stopping transfusion apparatus according to claim 4, it is characterised in that：The ball float（44）Density less than all
The density of transfusion liquid used, or less than the density of water.
6. automatic liquid-stopping transfusion apparatus according to claim 1, it is characterised in that：The drop kettle（40）With only liquid device（42）
The wall thickness of outer wall is identical, and using PET or PP without plasticiser, the drop kettle（40）Outer wall uniform application layer of transparent or
Translucent ultraviolet resistant layer.
7. automatic liquid-stopping transfusion apparatus according to claim 1, it is characterised in that：The first passage（420）Or second is logical
Road（421）The correspondence only liquid device（42）The cross section that outer wall caves in is arc-shaped or triangular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113526.4A CN106860949B (en) | 2017-02-28 | 2017-02-28 | Automatic liquid-stopping infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113526.4A CN106860949B (en) | 2017-02-28 | 2017-02-28 | Automatic liquid-stopping infusion apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106860949A true CN106860949A (en) | 2017-06-20 |
| CN106860949B CN106860949B (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710113526.4A Expired - Fee Related CN106860949B (en) | 2017-02-28 | 2017-02-28 | Automatic liquid-stopping infusion apparatus |
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| Country | Link |
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| CN (1) | CN106860949B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108815627A (en) * | 2018-08-10 | 2018-11-16 | 杭州光启医疗科技发展有限公司 | The infusion apparatus of anti-return blood |
| CN109856350A (en) * | 2018-12-28 | 2019-06-07 | 济南市第四人民医院 | For detecting human body to the kit of Docetaxel drug effect and adverse reaction |
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|---|---|---|---|---|
| CN108815627A (en) * | 2018-08-10 | 2018-11-16 | 杭州光启医疗科技发展有限公司 | The infusion apparatus of anti-return blood |
| CN109856350A (en) * | 2018-12-28 | 2019-06-07 | 济南市第四人民医院 | For detecting human body to the kit of Docetaxel drug effect and adverse reaction |
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| CN106860949B (en) | 2020-03-27 |
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