CN106668977A - Check valve used for infusion apparatus and use method of check valve - Google Patents
Check valve used for infusion apparatus and use method of check valve Download PDFInfo
- Publication number
- CN106668977A CN106668977A CN201611239083.5A CN201611239083A CN106668977A CN 106668977 A CN106668977 A CN 106668977A CN 201611239083 A CN201611239083 A CN 201611239083A CN 106668977 A CN106668977 A CN 106668977A
- Authority
- CN
- China
- Prior art keywords
- liquid
- rubber cushion
- upper lid
- return valve
- lower cover
- 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
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 238000001990 intravenous administration Methods 0.000 claims abstract description 12
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000008280 blood Substances 0.000 abstract description 9
- 210000004369 blood Anatomy 0.000 abstract description 9
- 230000002411 adverse Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004899 motility Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
- A61M2039/2406—Check- or non-return valves designed to quickly shut upon the presence of back-pressure
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Vascular Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a check valve used for an infusion apparatus and a use method of the check valve. The check valve used for the infusion apparatus is connected to the tail of an infusion apparatus pipeline and the upstream portion of an intravenous needle; in transfusion, medicinal liquid firstly passes through a liquid inlet pipe, is split through a cross beam in an upper cover, and then enters a hollow cavity from the two sides of the cross beam, a rubber pad is bent, a liquid channel is formed in the hollow cavity, and the liquid enters a lower cover from the edge of the rubber pad and flows out of a liquid outlet pipe; in backflow, the elasticity of the rubber pad makes the rubber pad edge rebounded to the position of an annular boss, the liquid channel is closed, the rubber pad can not deform, and the liquid channel can not be formed, so that backflow liquid can not enter the upper cover through the hollow cavity and liquid flow is stopped. According to an inner structure of the check valve, the rubber pad can only deform in one direction, and therefore the function of preventing liquid backflow is achieved. When the check valve is in use, no additional operation of medical staff is needed, blood returning risks in clinical transfusion are reduced, the working pressure of the medical staff is greatly reduced, and therefore the clinical transfusion treatment is safer, more effective and convenient.
Description
Technical field
The present invention relates to a kind of transfusion device non-return valve and its using method, for medical apparatus and instruments infusion apparatus product.
Background technology
Transfusion is widely used in clinic as most basic treatment meanss, and in vein puncture, and infusion closes to an end
When, the malleation in intravenous needle end pipe road can reduce, it is possible to can cause blood back, now need medical personnel extruding dropping funnel or around
Recovering malleation manually, to alleviate blood back problem, such operation can bring potential safety hazard, can also increase doctor to patient on pressure pipe road
The operation difficulty of shield personnel.Also there are some that the device of liquid countercurrent is prevented using one-way membrane on the market now, but it is limited to
The quality and service life of film, the using effect of reality is simultaneously bad, and what is had cannot realize counterflow-preventing function, and what is had can then hinder suitable
Circulation road, adversely affects to normal infusion, and using clinically feeds back also unsatisfactory.Therefore, transfusion device is prevented
Blood back problem is always one, clinical care field problem demanding prompt solution.
The content of the invention
In view of the deficiency that prior art is present, the invention provides a kind of transfusion device non-return valve and its using method, lead to
Cross and place a resilient rubber cushion in the agent structure of a upper and lower covers combination, using the internal structure of upper and lower covers rubber cushion is made
Unidirectionally can deform to form fluid passage, rubber cushion cannot inversely form liquid then because deforming without deformation space during backflow
Passage, so as to realize the function of liquidproof adverse current.
To realize affiliated purpose, the technical scheme for being adopted is the present invention：A kind of transfusion device non-return valve, including upper lid,
Lower cover and rubber cushion, the upper lid is hollow structure, and feed tube is provided with upper center, and the lower cover is hollow structure, in bottom
Drain pipe is provided with the heart, the upper lid fastens to form hollow cavity with lower cover, and the rubber cushion is circle, in being placed in hollow cavity,
A circle annular boss is provided with along wall inside upper lid, feed liquor bottom of the tube is provided with a crossbeam, center in lower cover with the top cap place of connecing
The lamellar double wedge of a triangle is provided with, across drain pipe mouth, the lamellar double wedge is with crossbeam same flat for the lamellar double wedge
On face, the rubber cushion is placed between lamellar double wedge and annular boss.
Upper lid inwall is evenly distributed with multiple tracks semi-cylindrical fin, lower cover inner bottom surface Shang Cheng centers are radial be uniformly distributed it is many
Road bar shaped protruding rail, is provided with a diameter of 6.4mm of a circle screw thread rubber cushion outside drain pipe, thickness is 0.9mm, and rubber cushion material is silicon
Glue.
Transfusion device non-return valve when mounted, is first connected to transfusion device pipeline afterbody, intravenous needle by transfusion device non-return valve
Upstream, installation direction is covered in upstream on, and lower cover is in downstream.During transfusion, medicinal liquid first enters upper lid via feed tube, by upper lid
The shunting action of interior crossbeam, medicinal liquid enters hollow cavity from crossbeam both sides, and rubber cushion both sides are due to the lamellar double wedge without triangle
Support, it is easy to bent by liquid, so as to form fluid path in hollow cavity, liquid enters lower cover from rubber cushion edge,
Flowed out by drain pipe again；Medicinal liquid will be transfused when completing, and down-flowing liquid is reduced, and hydraulic pressure reduces, and rubber cushion elasticity itself recovers it
Original straightened condition, rubber cushion edge rebounds annular boss position, fluid path closure, when there is a small amount of medicinal liquid to flow back, due to
Rubber cushion edge is blocked and cannot deformed by annular boss is returned, therefore liquid counter-current cannot enter upper lid by hollow cavity, and liquid stream stops
Only.
The invention has the beneficial effects as follows：By placing a resilient glue in the agent structure of a upper and lower covers combination
Pad, using the triangle lamellar double wedge structure inside lower cover, make rubber cushion by the punching press of liquid in pipeline when, Ke Yidan
Fluid passage is formed to deformation, during backflow, using the annular boss in upper lid rubber cushion edge is blocked so as to because without deformation space
Cannot deform, inversely cannot then form fluid passage, so as to realize preventing the function of liquid countercurrent.Only need to be by non-return valve with correct
Direction be arranged on transfusion device afterbody, intravenous needle upstream, the in use any operation without the need for medical personnel is capable of achieving the work(
Can, the blood back risk in clinical transfusion is reduced, the worry of patient and family members is alleviated, greatly reducing the work of medical personnel
Make pressure, overcome the bad of prior art, solve a clinical care circle difficult problem urgently to be resolved hurrily always, treat clinical transfusion
More safely, effectively with it is convenient.
Preferred rubber cushion size and material ensure that it is being applied to be sent out when infusion apparatus product clinical transfusion is treated
Wave its best function.It can also be that the device has to increase the designs such as spacing, the lower cover increase water conservancy diversion rail of rubber cushion in upper lid simultaneously
More preferable performance so as to more stable when using.In addition the screw thread for covering in collocation, medical personnel can at any time as needed
Intravenous needle is changed, it is increased and is used motility.
Description of the drawings
Fig. 1 front views of the present invention；
Fig. 2 upward views of the present invention；
Lid front view in Fig. 3 present invention；
Lid upward view in Fig. 4 present invention；
Fig. 5 lower cover front views of the present invention；
Fig. 6 lower cover top views of the present invention；
Fig. 7 A-A faces sectional view；
Fig. 8 B-B faces sectional view；
Fig. 9 fluid present invention following current principle schematics；
Figure 10 counterflow-preventing principle schematics of the present invention；
Figure 11 present invention uses cooperatively schematic diagram with transfusion device.
Specific embodiment
As shown in figures 1-8, transfusion device non-return valve 1, including upper lid 1-1, lower cover 1-2 and rubber cushion 1-3, the upper lid 1-1
For hollow structure, feed tube 1-1-1 is provided with upper center, the lower cover 1-2 is hollow structure, and liquid is provided with out at lower central
Pipe 1-2-1, the upper lid 1-1 and lower cover 1-2 fasten to form hollow cavity 1-4, and the rubber cushion 1-3 is circle, is placed in middle cavity
In body 1-4.A circle annular boss 1-1-2 is provided with along wall inside upper lid 1-1, annular boss 1-1-2 is used to limit rubber cushion 1-3,
It is set upwards not cover 1-1 Direction distortions.Feed tube 1-1-1 bottoms are provided with a crossbeam 1-1-3 with upper lid 1-1 junctions, should
Crossbeam 1-1-3 can play shunting action to down-flowing liquid.Center is provided with the lamellar double wedge 1- of a triangle in lower cover 1-2
2-2, lamellar double wedge 1-2-2 are used to support rubber cushion 1-3, and provide central supported when its both sides deforms downwards.The lamellar
Double wedge 1-2-2 across drain pipe 1-2-1 mouths, the lamellar double wedge 1-2-2 and crossbeam 1-1-3 at grade, the rubber cushion
1-3 is placed between lamellar double wedge 1-2-2 and annular boss 1-1-2.
The upper lid 1-1 inwalls are also evenly distributed with multiple tracks semi-cylindrical fin 1-1-4, can be to the rubber cushion in non-return valve
Play certain restriction effect.The lower cover 1-2 inner bottom surface Shang Haicheng centers are radial to be uniformly distributed multiple tracks bar shaped protruding rail 1-2-
3, guide functions can be played to dirty medicinal liquid.A circle screw thread 1-2-4, screw thread 1- are provided with outside the drain pipe 1-2-1
2-4 can spin cooperation with intravenous needle 2-1, be easy to medical personnel to change intravenous needle 2-1 according to practical situation at any time, increased this
The use motility of device.
Because the device is for the treatment of infusion apparatus product clinical transfusion, therefore we are according to general transfusion height and medicinal liquid
Pressure when dirty, using different size, thickness and material many experiments have been carried out, and have selected optimal side according to experimental result is excellent
Case, i.e.,：A diameter of 6.4mm of rubber cushion 1-3, thickness is 0.9mm, the use of material is silica gel.
The using method of the transfusion device non-return valve is：As shown in figure 11, during installation, transfusion device non-return valve 1 is connected
In the pipeline afterbody of transfusion device 2, intravenous needle 2-1 upstreams, installation direction is upper lid 1-1 in upstream, and lower cover 1-2 is in downstream.
As shown in figs. 9-10, during transfusion, medicinal liquid first enters upper lid 1-1 via feed tube 1-1-1, by horizontal in upper lid 1-1
The shunting action of beam 1-1-3, medicinal liquid enters hollow cavity 1-4 from crossbeam 1-1-3 both sides, and rubber cushion 1-3 both sides are due to without triangle
The support of the lamellar double wedge 1-2-2 of shape, it is easy to bent by liquid, so as to form fluid path, liquid in hollow cavity 1-4
Lower cover 1-2 is entered from rubber cushion 1-3 edges, then is flowed out by drain pipe 1-2-1；Medicinal liquid will be transfused when completing, and down-flowing liquid is reduced,
Hydraulic pressure reduces, and rubber cushion 1-3 elasticity itself makes its original straightened condition of recovery, and rubber cushion 1-3 rebounds at edge annular boss 1-1-2 positions
Put, fluid path closure, when there is a small amount of medicinal liquid to flow back, because rubber cushion 1-3 edges are blocked and cannot become by annular boss 1-1-2 is returned
Shape, therefore liquid counter-current cannot enter upper lid 1-1 by hollow cavity 1-4, liquid stream stops.
Transfusion is widely used in clinic as most basic treatment meanss, and in vein puncture, and infusion closes to an end
When, the malleation in intravenous needle end pipe road can reduce, it is possible to can cause blood back, now need medical personnel extruding dropping funnel or around
Recovering malleation manually, to alleviate blood back problem, such operation can bring potential safety hazard, can also increase doctor to patient on pressure pipe road
The operation difficulty of shield personnel.Also there are some that the device of liquid countercurrent is prevented using one-way membrane on the market now, but it is limited to
The quality and service life of film, the using effect of reality is simultaneously bad, and what is had cannot realize counterflow-preventing function, and what is had can then hinder suitable
Circulation road, adversely affects to normal infusion, and using clinically feeds back also unsatisfactory.Therefore, transfusion device is prevented
Blood back problem is always one, clinical care field problem demanding prompt solution.
The present invention by placing a resilient rubber cushion in the agent structure of upper and lower covers combination, using in lower cover
The triangle lamellar double wedge structure in portion, makes rubber cushion when by the punching press of liquid in pipeline, unidirectionally can deform to form liquid
Body passage, during backflow, using the annular boss in upper lid rubber cushion edge is blocked so as to inverse because deforming without deformation space
To cannot then form fluid passage, so as to realize preventing the function of liquid countercurrent.Only need to be by non-return valve being correctly oriented installation
In transfusion device afterbody, intravenous needle upstream, the in use any operation without the need for medical personnel is capable of achieving the function, reduces and face
Blood back risk in bed transfusion, alleviates the worry of patient and family members, greatly reducing the operating pressure of medical personnel, overcomes
Prior art it is bad, solve a clinical care circle difficult problem urgently to be resolved hurrily always, make clinical transfusion treat more safely, have
Imitate and convenient.
Preferred rubber cushion size and material ensure that it is being applied to be sent out when infusion apparatus product clinical transfusion is treated
Wave its best function.It can also be that the device has to increase the designs such as spacing, the lower cover increase water conservancy diversion rail of rubber cushion in upper lid simultaneously
More preferable performance so as to more stable when using.In addition the screw thread for covering in collocation, medical personnel can at any time as needed
Intravenous needle is changed, it is increased and is used motility.
Claims (7)
1. transfusion device non-return valve, the transfusion device non-return valve（1）, including upper lid（1-1）, lower cover（1-2）And rubber cushion（1-
3）, the upper lid（1-1）For hollow structure, feed tube is provided with upper center（1-1-1）, the lower cover（1-2）For interior empty knot
Structure, is provided with drain pipe at lower central（1-2-1）, the upper lid（1-1）With lower cover（1-2）Fastening forms hollow cavity（1-4）,
The rubber cushion（1-3）For circle, hollow cavity is placed in（1-4）In, it is characterised in that upper lid（1-1）Inside is provided with a circle along wall
Annular boss（1-1-2）, feed tube（1-1-1）Bottom and upper lid（1-1）Junction is provided with a crossbeam（1-1-3）, lower cover（1-
2）Interior center is provided with the lamellar double wedge of a triangle（1-2-2）, the lamellar double wedge（1-2-2）Across drain pipe（1-2-
1）Mouthful, the lamellar double wedge（1-2-2）With crossbeam（1-1-3）At grade, the rubber cushion（1-3）It is placed in lamellar double wedge
（1-2-2）And annular boss（1-1-2）Between.
2. transfusion device non-return valve according to claim 1, it is characterised in that：The upper lid（1-1）Inwall is uniformly distributed
There is multiple tracks semi-cylindrical fin（1-1-4）.
3. transfusion device non-return valve according to claim 1, it is characterised in that：The lower cover（1-2）In being on inner bottom surface
The heart is radial to be uniformly distributed multiple tracks bar shaped protruding rail（1-2-3）.
4. transfusion device non-return valve according to claim 1, it is characterised in that：The drain pipe（1-2-1）Outside is provided with
One circle screw thread（1-2-4）.
5. transfusion device non-return valve according to claim 1, it is characterised in that：The rubber cushion（1-3）It is a diameter of
6.4mm, thickness is 0.9mm.
6. transfusion device non-return valve according to claim 1, it is characterised in that：The rubber cushion（1-3）Material is silica gel.
7. the using method of the transfusion device non-return valve described in a kind of employing claim 1, it is characterised in that：During installation, will be defeated
Liquid device non-return valve（1）It is connected to transfusion device（2）Pipeline afterbody, intravenous needle（2-1）Upstream, installation direction is upper lid（1-1）
Upstream, lower cover（1-2）In downstream；During transfusion, medicinal liquid is first via feed tube（1-1-1）Into upper lid（1-1）, by upper lid（1-
1）Interior crossbeam（1-1-3）Shunting action, medicinal liquid is from crossbeam（1-1-3）Both sides enter hollow cavity（1-4）, rubber cushion（1-3）Two
Side is due to the lamellar double wedge without triangle（1-2-2）Support, it is easy to bent by liquid, so as in hollow cavity（1-4）
Middle formation fluid path, liquid is from rubber cushion（1-3）Edge enters lower cover（1-2）, then by drain pipe（1-2-1）Flow out；Medicinal liquid is
When infusion is completed, down-flowing liquid is reduced, and hydraulic pressure reduces, rubber cushion（1-3）Elasticity itself makes it recover original straightened condition, glue
Pad（1-3）Rebound annular boss at edge（1-1-2）Position, fluid path closure, when there is a small amount of medicinal liquid to flow back, due to rubber cushion
（1-3）Edge is returned annular boss（1-1-2）Blocking to deform, therefore liquid counter-current cannot pass through hollow cavity（1-4）Enter
Enter upper lid（1-1）, the stopping of liquid stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239083.5A CN106668977A (en) | 2016-12-28 | 2016-12-28 | Check valve used for infusion apparatus and use method of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239083.5A CN106668977A (en) | 2016-12-28 | 2016-12-28 | Check valve used for infusion apparatus and use method of check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106668977A true CN106668977A (en) | 2017-05-17 |
Family
ID=58872193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611239083.5A Pending CN106668977A (en) | 2016-12-28 | 2016-12-28 | Check valve used for infusion apparatus and use method of check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106668977A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544709A (en) * | 2020-05-14 | 2020-08-18 | 郑孝祥 | Infusion apparatus for pediatrics |
| CN111569183A (en) * | 2020-05-14 | 2020-08-25 | 郑孝祥 | Infusion apparatus with air-flow-preventing and blood-return functions for department of pediatrics |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103656781A (en) * | 2012-09-21 | 2014-03-26 | 郑州昊能科技有限公司 | Venous transfusion one-way check device |
| CN103656780A (en) * | 2012-09-11 | 2014-03-26 | 郑州昊能科技有限公司 | Novel disposable venous transfusion double-direction positive pressure and negative pressure cut-off negative pressure conducting device |
| CN204446782U (en) * | 2015-01-20 | 2015-07-08 | 浙江中医药大学附属第三医院 | A kind of transfusion device |
| CN104888310A (en) * | 2015-06-19 | 2015-09-09 | 河南曙光健士医疗器械集团股份有限公司 | Blood return prevention infusion connector |
| CN204684340U (en) * | 2015-05-29 | 2015-10-07 | 江苏瑞京科技发展有限公司 | A kind of transfusion Multi-ported device |
| CN204840478U (en) * | 2015-07-30 | 2015-12-09 | 中国人民解放军第三军医大学第三附属医院 | Can prevent transfusion system of blood refluence |
| CN206745691U (en) * | 2016-12-28 | 2017-12-15 | 天津哈娜好医材有限公司 | A kind of transfusion device non-return valve |
-
2016
- 2016-12-28 CN CN201611239083.5A patent/CN106668977A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103656780A (en) * | 2012-09-11 | 2014-03-26 | 郑州昊能科技有限公司 | Novel disposable venous transfusion double-direction positive pressure and negative pressure cut-off negative pressure conducting device |
| CN103656781A (en) * | 2012-09-21 | 2014-03-26 | 郑州昊能科技有限公司 | Venous transfusion one-way check device |
| CN204446782U (en) * | 2015-01-20 | 2015-07-08 | 浙江中医药大学附属第三医院 | A kind of transfusion device |
| CN204684340U (en) * | 2015-05-29 | 2015-10-07 | 江苏瑞京科技发展有限公司 | A kind of transfusion Multi-ported device |
| CN104888310A (en) * | 2015-06-19 | 2015-09-09 | 河南曙光健士医疗器械集团股份有限公司 | Blood return prevention infusion connector |
| CN204840478U (en) * | 2015-07-30 | 2015-12-09 | 中国人民解放军第三军医大学第三附属医院 | Can prevent transfusion system of blood refluence |
| CN206745691U (en) * | 2016-12-28 | 2017-12-15 | 天津哈娜好医材有限公司 | A kind of transfusion device non-return valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111544709A (en) * | 2020-05-14 | 2020-08-18 | 郑孝祥 | Infusion apparatus for pediatrics |
| CN111569183A (en) * | 2020-05-14 | 2020-08-25 | 郑孝祥 | Infusion apparatus with air-flow-preventing and blood-return functions for department of pediatrics |
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| PB01 | Publication | ||
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Application publication date: 20170517 |