CN107303401A - A kind of automatic safety liquid transfusion device - Google Patents
A kind of automatic safety liquid transfusion device Download PDFInfo
- Publication number
- CN107303401A CN107303401A CN201610258398.8A CN201610258398A CN107303401A CN 107303401 A CN107303401 A CN 107303401A CN 201610258398 A CN201610258398 A CN 201610258398A CN 107303401 A CN107303401 A CN 107303401A
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- China
- Prior art keywords
- woven hose
- entrance
- transfusion device
- liquid
- drop pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000007788 liquid Substances 0.000 title claims abstract description 64
- 238000001467 acupuncture Methods 0.000 claims abstract description 9
- 210000004761 scalp Anatomy 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 229940127554 medical product Drugs 0.000 abstract description 2
- 238000001802 infusion Methods 0.000 description 20
- 239000008280 blood Substances 0.000 description 10
- 210000004369 blood Anatomy 0.000 description 10
- 210000003462 vein Anatomy 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000012266 salt solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036544 posture Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000005189 Embolism Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
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
-
- 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
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Emergency Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a kind of automatic safety liquid transfusion device, belong to field of medical products, including adjuster and the puncture needle being sequentially communicated, Murphy's burette, woven hose one, stay drop pipe, woven hose two, filter, capillary and scalp acupuncture, and provided with staying liquid adjusting means by woven hose one, staying drop pipe and the connection end of woven hose two to bend to U-shaped, realize transfusion device automatic safety liquid using the fluid pressure equilibrium principle of U-tube both sides and stop transfusion.The present invention is simple in construction, easy to use, practical, it is adaptable in clinical treatment.
Description
Technical field
The present invention relates to field of medical products, more particularly to a kind of automatic safety liquid transfusion device.
Background technology
Existing market upper tubing species is various, many piercing needle woven hoses, intelligent heated transfusion pipe etc..Transfusion is to be more than the principle of vein side pressure by salt solution or decoction afferent veins based on infusion bag side liquid pressure.But after infusion-completed, because liquid is reduced in infusion bag, volume increases, and the pressure in woven hose will reduce and less than intravenous pressure, cause blood to flow to woven hose from vein.If not in time taking out woven hose, blood can be flowed out in capillary from vein, that is, blood back occurs.Had no time to attend to when nurse, doctor are busy, patient is constantly in blood back state, if Blood return time is long, blood may become sticky formation embolus, unfavorable to human body.
The non-blood returning transfusion tube of Application No. 201120276592.1 provides one kind and sets the magnetic collar and magnetic force cursory in Murphy's burette, is closed by producing magnetic attraction both it, so as to close woven hose transfusion, realizes the automatic stopping infusion after infusion-completed.But it sets the magnetic collar and cursory in dropper, on the one hand its processing technology and manufacture difficulty are larger；On the other hand, it may occur that the cursory situation about can not completely be fitted with the magnetic collar of magnetic, it is impossible to completely close infusion channel, it is difficult to realize the purpose of automatic stopping infusion.
The content of the invention
To solve the above problems, the invention provides a kind of automatic safety liquid transfusion device, with it is simple in construction, easy to use the features such as, transfusion can be stopped after infusion-completed automatically, without keeping an eye on, it is to avoid blood back.
To achieve the above object, the technical solution adopted by the present invention includes adjuster and the puncture needle, Murphy's burette, woven hose, filter, capillary and the scalp acupuncture that are sequentially communicated.The woven hose includes woven hose one, woven hose two, and the liquid feeding end of woven hose one is connected with Murphy's burette, and the outlet end of woven hose two is connected with filter, and adjuster is arranged on woven hose two.It is communicated between the outlet end of woven hose one and the liquid feeding end of woven hose two and stays drop pipe, be arranged with the outer tube wall of woven hose one and stay liquid adjusting means, woven hose two is close to the part of liquid feeding end by staying the hanging of liquid adjusting means on woven hose one.
Due to the interlude of woven hose two close to the part of liquid feeding end by staying the hanging of liquid adjusting means on woven hose one, woven hose one forms U-tube side by side with the part of woven hose two close to liquid feeding end.Due to having part decoction or residue of saline in woven hose one, two after the both sides transfusion of U-tube, the principle balanced using U-tube both sides fluid pressure makes the fluid pressure of the both sides of U-tube balance to realize automatic stopping infusion.Stay drop pipe to accommodate certain air, the air in woven hose one can be filtered, prevent air from entering vein, and with the pressure balanced function of maintenance.It need to ensure the head for making the least significant end of U-tube be less than patient by staying liquid adjusting means to adjust woven hose two when using.
Further, it is described to stay drop tube top portion to offer entrance one, entrance two.The liquid feeding end of the woven hose one is connected with Murphy's burette, and the outlet end of woven hose one is stretched into by entrance one to be stayed in drop pipe.The liquid feeding end of the woven hose two is stretched into by entrance two stays drop pipe inner bottom, and the outlet end of woven hose two is connected with filter.
Further, the top for staying drop pipe, bottom are respectively provided with flatly.The liquid feeding end of the woven hose one is connected with Murphy's burette, and the outlet end of woven hose one is with staying the open top of drop pipe to connect；The liquid feeding end of the woven hose two is with staying the bottom end opening of drop pipe to connect, and the outlet end of woven hose two is connected with filter.
Further, described to stay liquid adjusting means to include supporting sleeve and arc pipe, arc pipe is fixed on supporting sleeve outer wall.Supporting sleeve up/down perforation, is fastened on the outer wall of woven hose one.Arc pipe is provided with the opening one being directed downward, opening two, in arc pipe, and opening one is connected with opening two.The woven hose one is from up to down through supporting sleeve with staying drop pipe to connect.The outlet end of woven hose two enters from opening one, passes and is connected with filter from opening two.
Further, the entrance one for staying drop pipe, be respectively equipped with connecting tube one, connecting tube two on entrance two.One end of connecting tube one is connected with the outlet end of woven hose one, and the other end is stretched into entrance one with staying drop pipe inside to connect.One end of connecting tube two is connected with the liquid feeding end of woven hose two, and the other end, which is stretched into, stays drop pipe inner bottom.Connecting tube one and entrance one, connecting tube two are sealedly and fixedly connected with entrance two.
Further, woven hose three is connected between the outlet of the puncture needle and Murphy's burette entrance.
Further, the puncture needle at least provided with a taper barbule, the barbule be located at same level, be evenly distributed on the outer surface of puncture needle, barbule can increase the bonding strength between puncture needle and infusion bag, prevent transfusion device from coming off or being drawn out from infusion bag.
Further, for ease of the transfusion of lucifuge decoction, the woven hose one, two, Murphy's burette, capillary, filter and scalp acupuncture are made of lucifuge material.
Further, scope of activities when being used for increase transfusion device, the overall length of the physical length of the woven hose one and woven hose two increases by 0 ~ 100 centimetre, wherein, the physical length of woven hose one can not increase, and woven hose two increases certain length according to use occasion adaptability.Although the total length increase of transfusion device woven hose, its main-process stream infused also accordingly increases, position of the liquid adjusting means on woven hose one or woven hose two can be stayed by regulation, to adjust the use length of woven hose two and use scope.Wherein, the length of part woven hose two after the opening two of liquid adjusting means is stayed is referred to using length and using scope.Physical length refers to the length of woven hose physically.
The present invention operation principle and have the beneficial effect that：The present invention is set between woven hose one and transfusion two and to stay drop pipe to be used to connecting woven hose one and infuse two using staying liquid adjusting means by a portion of woven hose one and both woven hoses two by staying liquid adjusting means to form the liquid-transport pipe-line of U-shaped side by side.
After the salt solution in infusion bag or decoction input are finished, woven hose one and the fluid pressure balanced action of the both sides of woven hose two due to U-tube, when the hydraulic pressure in infusion bag is changed into air pressure, the pressure of the side of woven hose one is set to reduce the pressure balance until with the side of woven hose two, remaining decoction or salt solution in woven hose one, stay drop pipe top formed certain altitude water column and maintain this highly motionless, realize transfusion device automatic safety liquid and stop transfusion, constantly kept an eye on without caregiver, blood back phenomenon is avoided to occur, it is ensured that patient infusion safety.
Staying has certain air in drop pipe, its upper/lower terminal has certain pressure, can increase the pressure of the side of woven hose one, it is to avoid the water-column of the side of U-tube woven hose one is too low.And when changing infusion bag, decoction instills the process for staying drop pipe from infusion bag, air press-in will can be stayed in drop pipe in woven hose one.The air for staying drop pipe energy automatic fitration to go out in woven hose one, it is to avoid air enters human vein.
It if staying drop pipe volume big to the whole air that can be accommodated in woven hose one, can also be emptied when changing infusion bag without caregiver, improve transfusion efficiency, it is to avoid air enters vein by woven hose two and produces influence to human body, is easy to repeatedly change infusion bag.
To ensure that woven hose still has larger use length and uses scope after being bent, the present invention increases the overall length of woven hose one, the physical length of woven hose two, because the pipeline loop of U-tube is bent, even if the main-process stream of transfusion device transfusion increased, but its when using woven hose two use length and the woven hose of existing transfusion device to use similar length.Also, it is described to stay liquid adjusting means pivotably to be moved up and down on woven hose one, it is easy to adjust the size and height of U-tube, also allows for the different posture of adaptation sufferer and use woven hose.
Further, since the function that the present invention need not be kept an eye on, the transfusion available for lucifuge class decoction is used.
In brief, the invention provides disposably reserve woven hose for one's own use, it make use of the characteristics of U-tube two ends liquid pressure is balanced, realize the technique effect of transfusion device automatic stopping infusion after infusion-completed, blood back situation is avoided to occur, and the various postures of user are can adapt to, are had the advantages that simple in construction, easy for installation, practical.
Brief description of the drawings
Fig. 1 is a kind of structural representation of automatic safety liquid transfusion device embodiment one；
Fig. 2 is that a kind of automatic safety liquid transfusion device embodiment one stays liquid adjusting means structural representation；
Fig. 3 is a kind of puncture needle structure schematic diagram of automatic safety liquid transfusion device embodiment one；
Fig. 4 is a kind of structural representation of automatic safety liquid transfusion device embodiment two.
Shown in figure：Puncture needle 1, Murphy's burette 2, woven hose 1, liquid adjusting means 4, supporting sleeve 41 are stayed, arc pipe 42, opening 1, opening 2 422, drop pipe 1, entrance 1 is stayed, entrance 2 52, connecting tube 1, connecting tube 2 54, woven hose 26, adjuster 7, filter 8, capillary 9, scalp acupuncture 10, barbule 11, stays drop pipe 2 12, internal thread 13, woven hose 3 14.
Embodiment
As shown in figure 1, the present embodiment is sequentially provided with puncture needle 1, Murphy's burette 2 according to transfusion order, woven hose 1, stays liquid adjusting means 4, stays drop pipe 1, woven hose 26, filter 8, capillary 9 and scalp acupuncture 10.Wherein puncture needle 1, Murphy's burette 2, woven hose 1, stay drop pipe 1, woven hose 26, filter 8, capillary 9 and scalp acupuncture 10 to be sequentially communicated, a certain section of the close end of woven hose 26 is provided with adjuster 7.
Stay the top of drop pipe 1 to offer and be inserted with connecting tube 1, connection two on entrance 1, entrance 2 52, entrance 1, entrance 2 52 respectively, connecting tube 1, connection two are tightly connected and fixed with entrance 1, entrance 2 52 respectively.One end of connecting tube 1 is located at the top for staying drop pipe 1, is connected with the outlet end of woven hose 1.The other end of connecting tube 1 is stretched to by entrance 1 stays the inner tip of drop pipe 1.One end of connecting tube 2 54 is located at the top for staying drop pipe 1, is connected with the liquid feeding end of woven hose 26.The other end of connecting tube 2 54 is stretched into by entrance 2 52 stays the inner bottom of drop pipe 1.The liquid feeding end of woven hose 1 is connected with the bottom of Murphy's burette 2, and the top of Murphy's burette 2 is connected with puncture needle 1, and the outlet end of woven hose 26 is connected with filter 8.
Stay the operation principle of drop pipe 1 identical with Murphy's burette 2, certain air can be accommodated by staying in drop pipe 1, the air or bubble in woven hose 1 are stayed in drop pipe 1 in the drop infusion process of decoction or salt solution into after staying drop pipe 1.Drop pipe 1 is stayed to be used as air cleaner 8.
With reference to shown in Fig. 2, liquid adjusting means 4 is stayed to be made up of supporting sleeve 41 and the two parts of arc pipe 42.Arc pipe 42 is fixed on supporting sleeve 41.Supporting sleeve 41 is up big and down small, up/down perforation, and its internal diameter is smaller compared with woven hose 1, is fastened on one section of the centre of woven hose 1.Supporting sleeve 41 can be moved up and down on woven hose 1.The inwall of supporting sleeve 41 is provided with internal thread 13.Arc pipe 42 is provided with two openings 1 and opening 2 422 arranged side by side, and opening 1,2 422 directions of opening down, in arc pipe 42, are connected, pipeline inner curve curved surface is smooth between opening 1, opening 2 422 by the bend of arc.Woven hose 1 is from up to down through supporting sleeve 41 with staying drop pipe 1 to connect, and woven hose 26 enters from the opening 1 of arc pipe 42, passes connection adjustor 7 from opening 2 422 and is connected again with filter 8, capillary 9, scalp acupuncture 10.
The interlude of woven hose 26 is close to the part of liquid feeding end by staying liquid adjusting means 4 to hang on woven hose 1, drop pipe 1 is stayed to be arranged on bottom connection woven hose 1 and the woven hose 26 of woven hose 1, woven hose 1 close to the part of woven hose 26 of liquid feeding end with side by side and combining the liquid-transport pipe-line for staying the formation U-bend of drop pipe 1 bent.Remaining raffinate is under the principle effect of the fluid pressure balance of the bent liquid-transport pipe-line both sides of U-bend after infusion-completed, one section of water column with certain altitude is formed in the side of woven hose 1, to maintain the pressure balance of the bent liquid-transport pipe-line both sides of U-bend, realize automatic stopping infusion after infusion-completed, the transfusion condition of patient is kept an eye on without nurse etc., mitigates the operating pressure of nurse.
With reference to shown in Fig. 3, outlet and the entrance of Murphy's burette 2 of puncture needle 1 are joined directly together.Puncture needle 1 can prevent transfusion device is overweight to be come off from infusion bag provided with a barbule 11, barbule 11, it is to avoid influence normal infusion.
As shown in figure 4, the difference of embodiment two and embodiment one is：Drop pipe 2 12 is stayed to be the Murphy's burette 2 of normal volume diminution 1/2nd in the present embodiment.The top of drop pipe 2 12, bottom is stayed to be respectively equipped with inlet and outlet.The liquid feeding end of woven hose 1 is connected with the bottom of Murphy's burette 2, and the outlet end of woven hose 1 is with staying the top inlet of drop pipe 2 12 to connect.The liquid feeding end of woven hose 1 is with staying the outlet at bottom of drop pipe 2 12 to connect, and the outlet end of woven hose 1 is connected with filter 8.In addition, being provided with woven hose 3 14 between puncture needle 1 and Murphy's burette 2.
Claims (9)
1. a kind of automatic safety liquid transfusion device, including adjuster and puncture needle, Murphy's burette, woven hose, filter, capillary and the scalp acupuncture being sequentially communicated, it is characterised in that：The woven hose includes woven hose one, woven hose two, and the liquid feeding end of woven hose one is connected with Murphy's burette, and the outlet end of woven hose two is connected with filter, and adjuster is arranged on woven hose two；It is communicated between the outlet end of woven hose one and the liquid feeding end of woven hose two and stays drop pipe；Liquid adjusting means is stayed in the outer tube wall card of woven hose one, woven hose two is close to the part of liquid feeding end by staying the hanging of liquid adjusting means on woven hose one.
2. a kind of automatic safety liquid transfusion device according to claim 1, it is characterised in that：It is described to stay drop tube top portion to offer entrance one, entrance two；The outlet end of woven hose one is stretched into by entrance one and stayed in drop pipe；The liquid feeding end of the woven hose two is stretched into by entrance two stays drop pipe inner bottom.
3. a kind of automatic safety liquid transfusion device according to claim 1, it is characterised in that：The top for staying drop pipe, bottom are respectively provided with flatly, and the outlet end of woven hose one is with staying the open top of drop pipe to connect；The liquid feeding end of the woven hose two is with staying the bottom end opening of drop pipe to connect.
4. a kind of automatic safety liquid transfusion device according to claim 1, it is characterised in that：Described to stay liquid adjusting means to include supporting sleeve and arc pipe, arc pipe is fixed on supporting sleeve outer wall；Supporting sleeve up/down perforation, is fastened on the outer wall of woven hose one；Arc pipe is provided with the opening one being directed downward, opening two；In arc pipe, opening one is connected with opening two；The woven hose one is from up to down through supporting sleeve with staying drop pipe to connect；The outlet end of woven hose two enters from opening one, passes and is connected with filter from opening two.
5. a kind of automatic safety liquid transfusion device according to claim 1, it is characterised in that：Described to stay drop tube top portion to be provided with entrance one, entrance two and connecting tube one, connecting tube two, the one end of connecting tube one is connected with the outlet end of woven hose one, and the other end is stretched into entrance one with staying drop pipe inside to connect；The one end of connecting tube two is connected with the liquid feeding end of woven hose two, and the other end, which is stretched into, stays drop pipe inner bottom；Connecting tube one and entrance one, are sealedly and fixedly connected between connecting tube two and entrance two.
6. a kind of automatic safety liquid transfusion device according to claim 1, it is characterised in that：Woven hose three is connected between the puncture needle and Murphy's burette.
7. a kind of automatic safety liquid transfusion device according to claim 1, it is characterised in that：The puncture needle is provided with the barbule of at least one taper.
8. a kind of automatic safety liquid transfusion device according to claim 1, it is characterised in that：The woven hose one, woven hose two, Murphy's burette, capillary, filter and scalp acupuncture are made of lucifuge material.
9. according to a kind of any described automatic safety liquid transfusion device of claim 1 to 5, it is characterised in that：The physical length summation of the woven hose one and woven hose two increases by 0 ~ 100 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258398.8A CN107303401A (en) | 2016-04-25 | 2016-04-25 | A kind of automatic safety liquid transfusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258398.8A CN107303401A (en) | 2016-04-25 | 2016-04-25 | A kind of automatic safety liquid transfusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107303401A true CN107303401A (en) | 2017-10-31 |
Family
ID=60151006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610258398.8A Pending CN107303401A (en) | 2016-04-25 | 2016-04-25 | A kind of automatic safety liquid transfusion device |
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| Country | Link |
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| CN (1) | CN107303401A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201510584U (en) * | 2009-10-16 | 2010-06-23 | 张子义 | Safety infusion apparatus capable of automatic droplet stoppage |
| CN203749929U (en) * | 2014-03-24 | 2014-08-06 | 万廷荃 | Venous transfusion dropper and venous transfusion device with the same |
| CN205698702U (en) * | 2016-04-25 | 2016-11-23 | 孙鉴国 | A kind of automatic safety liquid transfusion device |
-
2016
- 2016-04-25 CN CN201610258398.8A patent/CN107303401A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201510584U (en) * | 2009-10-16 | 2010-06-23 | 张子义 | Safety infusion apparatus capable of automatic droplet stoppage |
| CN203749929U (en) * | 2014-03-24 | 2014-08-06 | 万廷荃 | Venous transfusion dropper and venous transfusion device with the same |
| CN205698702U (en) * | 2016-04-25 | 2016-11-23 | 孙鉴国 | A kind of automatic safety liquid transfusion device |
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Application publication date: 20171031 |