CN209270484U - A kind of disposable transfusion device being automatically turned off - Google Patents
A kind of disposable transfusion device being automatically turned off Download PDFInfo
- Publication number
- CN209270484U CN209270484U CN201821514132.6U CN201821514132U CN209270484U CN 209270484 U CN209270484 U CN 209270484U CN 201821514132 U CN201821514132 U CN 201821514132U CN 209270484 U CN209270484 U CN 209270484U
- Authority
- CN
- China
- Prior art keywords
- drip chamber
- needle
- automatically turned
- syringe needle
- buoyant spheres
- 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.)
- Expired - Fee Related
Links
- 238000001802 infusion Methods 0.000 claims abstract description 51
- 239000012530 fluid Substances 0.000 claims abstract description 50
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 230000010412 perfusion Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000008280 blood Substances 0.000 abstract description 9
- 210000004369 blood Anatomy 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 description 17
- 239000003814 drug Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 241000256113 Culicidae Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 241001411320 Eriogonum inflatum Species 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 241000256626 Pterygota <winged insects> Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a kind of disposable transfusion device being automatically turned off, the plug bottle syringe needle including connecting with infusion bottle, the perfusion tube for discriminating whether used fluid injection syringe needle, being connected between the plug bottle syringe needle and fluid injection syringe needle；The sealing cover being tightly connected in the plug bottle syringe needle with infusion bottle is equipped with air inlet pipe, has drip chamber on the perfusion tube, flow regulator is equipped between the drip chamber and fluid injection syringe needle；It is equipped in the drip chamber and is automatically turned off device.Before use, whether have protection tube protection and buoyant spheres whether in the middle position of drip chamber by the transfusion needle of the utility model, can obviously differentiate the infusion apparatus whether be it is used, can preferably prevent the secondary use of infusion apparatus.The utility model guarantees that perfusion tube is automatically closed after medical fluid is finished by automatic starting device, and play the role of being automatically turned off medical fluid, the structure being automatically turned off is simple, easy to operate, securely and reliably, blood back or waste medical fluid will not occur.
Description
Technical field
The utility model relates to the technical field of medical instrument more particularly to a kind of disposable transfusion devices being automatically turned off.
Background technique
Currently, disposable transfusion device is made of upper tubing, dosing mouth, Murphy's burette, lower infusion tube mostly, upper infusion
Pipe connects medicinal liquid bottle, and lower infusion tube connector sword-shaped needle after medical fluid is finished, is abandoned infusion apparatus as waste.In infusion process, generally
Disposable transfusion device is connected to infusion bottle, then the passages through which vital energy circulates of intravenous needle insertion patient can be infused.Patient is being infused
When be to hang over medicine bottle or infusion bag on removable or fixed bracket mostly, then disposable bottle plug puncture unit is inserted into
In the bag plug of projecting medicine bottle stopper or infusion bag, medical fluid flows into drop pot along infusion tube, then by the downward fair current of drop pot
Flowing, eventually by syringe needle afferent veins.Liquid volume because vein also has certain pressure, in hose of infusion apparatus
When less, it is easy to generate blood backflow into infusion tube.Therefore, whether looked in medicine bottle when taking when infusion has medical fluid,
And ensure to have retained a certain amount of medical fluid in infusion apparatus, once preventing medical fluid to be finished causes adverse current to patient.It is especially surplus in medical fluid
Medicine bottle is more watched close when remaining few, it is ensured that nurse can come dressing or starting when medical fluid will empty.But to remaining in infusion bottle
The how many judgement of medical fluid is but without certain standard, furthermore nurse needs how long to arrive and also not know, and often nurse comes then,
Remaining medical fluid be not be excessively exactly it is very few, if excessively need continue waiting for or not etc. with regard to dressing, will result in the time in this way
Or liquid waste；If remaining medical fluid is very few, and will cause the dangerous situations such as air inlet or blood back.
In addition, after liquid is finished, some is without destroying used disposable transfusion device, and as useless
Gurry abandons, and some illegal retailers slightly pack after being recycled and come into the market again, and patient once uses such product, pole
Viral cross-infection is easily caused, brings harm to patient.
Utility model content
In view of this, the main purpose of the utility model is to provide a kind of disposable transfusion devices being automatically turned off, defeated
It can be automatically stopped liquid flowing after liquid, blood back or waste medical fluid will not occur, can effectively differentiate whether it used, prevent
Only it is reused.
The disposable transfusion device provided by the utility model being automatically turned off, including connect with infusion bottle plug bottle syringe needle, use
In the perfusion tube for discriminating whether used fluid injection syringe needle, being connected between the plug bottle syringe needle and fluid injection syringe needle；
In the plug bottle syringe needle with infusion bottle be tightly connected sealing cover be equipped with air inlet pipe, one end of the air inlet pipe with
The infusion bottle is connected, and the top of the other end is configured with air filter；
There is drip chamber on the perfusion tube, flow regulator is equipped between the drip chamber and fluid injection syringe needle；
It is equipped in the drip chamber and is automatically turned off device.
Preferably, it is described be automatically turned off device include be placed in the drip chamber and diameter be less than drip chamber diameter it is floating
The density of power ball, the buoyant spheres is lower than medical fluid density；
The bottom of the drip chamber is formed with the arc-shaped structure that face contact is carried out with the spherical surface of the buoyant spheres；
The middle section of the drip chamber is stretchable wave rugosity, when the middle section of the drip chamber is rugosity
Block the buoyant spheres；The middle section of drip chamber is that the buoyant spheres fall when stretching shape.
Further, the arc surface of the arc-shaped structure is equipped with one layer of soft suction pad that the spherical surface of the buoyant spheres is sucked.
Preferably, the surface of the buoyant spheres is coated with one layer of thin rubber layers.
Preferably, the fluid injection syringe needle include needle stand, be fixed on the needle stand axial centerline transfusion needle, be located at
In the needle stand and cover protection tube in the transfusion needle periphery；
Compressed spring is equipped between the bottom of the protection tube and the bottom face of the needle stand, the compressed spring is arranged
In the periphery of the transfusion needle.
Preferably, the bottom of the protection tube is formed with the boss stretched radially outward, which is resisted against the needle
On the inner wall of seat；
There is the annular slot for blocking the boss on the inner wall of the middle and lower part of the needle stand.
The infusion sets for single use being automatically turned off of the utility model has the advantages that:
Before use, whether having protection tube protection and buoyant spheres whether in drip chamber by the transfusion needle of the utility model
Middle position, can obviously differentiate the infusion apparatus whether be it is used, can preferably prevent the secondary of infusion apparatus from making
With.The utility model guarantees that perfusion tube is automatically closed after medical fluid is finished by automatic starting device, and blood back or waste will not occur
Medical fluid.
Detailed description of the invention
Fig. 1 is that the structure in the infusion process of the disposable transfusion device being automatically turned off of the preferred embodiment in the utility model is shown
It is intended to；
Fig. 2 is that the structure after the infusion of the disposable transfusion device being automatically turned off of the preferred embodiment in the utility model is shown
It is intended to；
Fig. 3 is the structural representation of the drip chamber of the disposable transfusion device being automatically turned off of the preferred embodiment in the utility model
Figure；
Fig. 4 is the structural representation of the fluid injection syringe needle of the disposable transfusion device being automatically turned off of the preferred embodiment in the utility model
Figure；
Fig. 5 is that the structure of the one-way flow device of the disposable transfusion device being automatically turned off of the preferred embodiment in the utility model is shown
It is intended to.
Specific embodiment
Referring to shown in Fig. 1 to Fig. 5, the progress of the disposable transfusion device being automatically turned off of the utility model is specifically retouched
It states:
The disposable transfusion device being automatically turned off of the utility model include the infusion bottle 10 set gradually, plug bottle syringe needle 20,
Perfusion tube 30, one-way flow device 40, drip chamber 50, flow regulator 60 and fluid injection syringe needle 70, in plug bottle syringe needle 20 with infusion bottle
The plug-in needle of 10 grafting injects infusion bottle mouth, and abuts against sealing cover 21 on the bottleneck of infusion bottle 10, carries out to bottleneck close
Envelope is equipped with air inlet pipe 22 on sealing cover 21, and one end of the air inlet pipe 22 is connected with the infusion bottle 10, the other end
Top is configured with air filter 23, sealing cover 21 is arranged in the inserted terminal of infusion bottle 10, and set in the free end of air inlet pipe 22
Air filter 23 is emptied, bottleneck can be effectively obstructed and directly contact and prevent the pollution of mosquitos and flies, winged insect to bottleneck with air, make this
Clear air in air filter 23, effectively prevents to take impurity in medical fluid to and is detrimental to health.
Drip chamber 50 is arranged on the perfusion tube 30 being connected between the plug bottle syringe needle 20 and fluid injection syringe needle 70, drip chamber
It is equipped in 50 and is automatically turned off device, the device that is automatically turned off of the utility model includes being placed in the drip chamber 50 and diameter is less than
The buoyant spheres 80 of the diameter of drip chamber, the density of the buoyant spheres 80 are lower than the density of medical fluid, the bottom shape of the drip chamber 50
The spherical surface of buoyant spheres 80 described in Cheng Youyu carries out the arc-shaped structure 51 of face contact, in addition, the middle section of the drip chamber 50
For stretchable wave rugosity, the buoyant spheres 80 are blocked when being rugosity in the middle section of the drip chamber；In drip chamber
Between partially for stretch shape when, the buoyant spheres 80 can fall, so set, can prevent when infusion apparatus is not used, buoyant spheres 80
Arc-shaped structure 51 is blocked positioned at the bottom of drip chamber 50, so that infusion is unable to complete.Using part wave rugosity
Drip chamber 50 makes buoyant spheres 80 be placed in the intermediate position of drip chamber, after medical fluid fills the arc-shaped structure 51 of drip chamber bottom,
Drip chamber 50 is straightened, buoyant spheres 80 float in medical fluid, the bottom without blocking drip chamber 50, can normal infusion.
In addition, in order to guarantee that buoyant spheres 80 can seal arc-shaped structure 51, the arc-shaped structure 51 after the completion of infusion
Arc surface be equipped with the soft suction pad for the spherical surface that one layer is sucked the buoyant spheres 80, and coat one layer on the surface of the buoyant spheres 80
Thin rubber layers, so that there is higher cooperation precision, defeated between the spherical surface of buoyant spheres 80 and the arc surface of arc-shaped structure 51
It is more efficiently that infusion is automatically closed at the end of liquid.
Using in the utility model, in the case where normal infusion, it is filled with medical fluid in drip chamber 50 and perfusion tube 30,
Buoyant spheres 80 are suspended in the top of drip chamber 50, and after medical fluid is finished, the indoor liquid level decline of dropping liquid, buoyant spheres 80 are also under
Drop, when buoyant spheres 80 drop to the arc-shaped structure of drip chamber bottom, in self gravity, top air pressure and following vacuum action
Under, the bottom cambered surface of buoyant spheres 80 tightly seals the arc surface of arc-shaped structure, and it is defeated to guarantee that the extraction raffinate in perfusion tube does not continue to
Enter, and prevent the defencive function of backflow of blood, increases the safety of medical treatment, play the role of being automatically turned off medical fluid, it is automatic to close
The structure stopped is simple, easy to operate, securely and reliably.In addition, when using the disposable transfusion device of the utility model, if it find that
Buoyant spheres 80 are not located at the middle position of drip chamber 50, illustrate that the infusion apparatus has been previously used, and buoyant spheres 80 are located at
The bottom of drip chamber 50 can also prevent the progress of infusion, can preferably prevent the secondary use of infusion apparatus.
As shown in figure 4, the fluid injection syringe needle 70 in the utility model includes needle stand 71, the central axis for being fixed on the needle stand 71
The transfusion needle 72 of line position in the needle stand 71 and covers protection tube 73 in 72 periphery of the transfusion needle, the protection
Compressed spring 74 is equipped between the bottom of casing 73 and the bottom face of the needle stand 71, the compressed spring 74 is set in described defeated
The periphery of liquid needle 72.In unused fluid injection syringe needle, protection tube 73 stretches out outside needle stand 71 and entangles transfusion needle 72, prevents needle
Unexpected injury of the head to human body, and transfusion needle 72 is protected, when using fluid injection syringe needle, overcome the bullet of compressed spring 74
Protection tube 73 is retracted in needle stand 71 by power, is exposed transfusion needle 72 and is infused.
In addition, the bottom of the protection tube 73 is formed with the boss stretched radially outward, which is resisted against the needle
On the inner wall of seat 71, there is the annular slot 75 for blocking the boss on the inner wall of the middle and lower part of the needle stand 71, when
When the boss of protection tube 73 is retracted at annular slot 75, annular slot 75 blocks boss, so that protection tube 73 is stuck in
In needle stand 71, protection tube 73 cannot stretch out again protects transfusion needle 72.Therefore, the primary of the utility model is being used
When property infusion apparatus, it if it find that transfusion needle 72 is exposed outside, can differentiate that the infusion apparatus has been previously used, prevent carry out two
Secondary use.
In the present invention, as shown in figure 5, the one-way flow device 40 includes valve body, positioned at the centre of the valve body
Valve chamber, blocking body 43 and filtering backstop with conical through-hole 42 are sequentially formed on the inner wall of the valve chamber 41 from top to bottom
44, the bigger diameter end of the conical through-hole 42 is towards the fluid injection syringe needle；Taper is equipped between the blocking body 43 and filtering backstop 44
Liquid block 45 is kept off, the taper of the taper gear liquid block 45 is identical with the taper of the conical through-hole 42, can make taper gear liquid block 45
The tapered surface of tapered surface and conical through-hole 42 is combined closely, and the diameter of the bigger diameter end of taper gear liquid block 45 is less than described
The diameter of valve chamber 41, is arranged the one-way flow device of above structure, and medical fluid can only be from the miner diameter end of conical through-hole 42 to bigger diameter end stream
Dynamic, when liquid reflux, taper gear liquid block 45 can block conical through-hole 42, prevent liquid from the bigger diameter end of conical through-hole 42 to small
The flowing of diameter end, after the medical fluid in infusion bottle is finished, even if patient or medical staff in time do not extract fluid injection syringe needle, and
And when being automatically turned off failure of apparatus of drip chamber 50, it will be blocked at venous backflow to one-way flow device, avoid blood
It is back in infusion bag or infusion bottle and jeopardizes patients ' lives health, the one-way flow device structure of the utility model is simple, processing system
Facilitate, cost is relatively low.The disposable transfusion device being automatically turned off of the utility model medical fluid close at the end of can be automatically stopped
Blood back or waste medical fluid will not occur for liquid flowing, and one-way flow device 40 is set and automatic starting device be formed together it is double
Insure again, and reserves time enough to nurse and take needle.
Before use, by the transfusion needle 72 of the utility model whether have the protection of protection tube 73 and buoyant spheres 80 whether
The middle position of drip chamber 50, can obviously differentiate the infusion apparatus whether be it is used, can preferably prevent infusion apparatus
Secondary use.The utility model is guaranteed that perfusion tube is automatically closed after medical fluid is finished by automatic starting device, will not occurred back
Blood or waste medical fluid.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of disposable transfusion device being automatically turned off, which is characterized in that including connect with infusion bottle plug bottle syringe needle, for sentencing
Not not whether used fluid injection syringe needle, the perfusion tube being connected between the plug bottle syringe needle and fluid injection syringe needle；
In the plug bottle syringe needle with infusion bottle be tightly connected sealing cover be equipped with air inlet pipe, one end of the air inlet pipe with it is described
Infusion bottle is connected, and the top of the other end is configured with air filter；
There is drip chamber on the perfusion tube, flow regulator is equipped between the drip chamber and fluid injection syringe needle；
It is equipped in the drip chamber and is automatically turned off device.
2. the disposable transfusion device according to claim 1 being automatically turned off, which is characterized in that described to be automatically turned off device packet
Include be placed in the drip chamber and diameter be less than drip chamber diameter buoyant spheres, the density of the buoyant spheres is close lower than medical fluid
Degree；
The bottom of the drip chamber is formed with the arc-shaped structure that face contact is carried out with the spherical surface of the buoyant spheres；
The middle section of the drip chamber is stretchable wave rugosity, and the middle section of the drip chamber is blocked when being rugosity
The buoyant spheres；The middle section of drip chamber is that the buoyant spheres fall when stretching shape.
3. the disposable transfusion device according to claim 2 being automatically turned off, which is characterized in that the circle of the arc-shaped structure
Cambered surface is equipped with one layer of soft suction pad that the spherical surface of the buoyant spheres is sucked.
4. the disposable transfusion device according to claim 3 being automatically turned off, which is characterized in that wrap on the surface of the buoyant spheres
It is covered with one layer of thin rubber layers.
5. the disposable transfusion device according to claim 1 being automatically turned off, which is characterized in that the fluid injection syringe needle includes needle
Seat, be fixed on the needle stand axial centerline transfusion needle, in the needle stand and cover in transfusion needle periphery
Protection tube；
Compressed spring is equipped between the bottom of the protection tube and the bottom face of the needle stand, the compressed spring is set in institute
State the periphery of transfusion needle.
6. the disposable transfusion device according to claim 5 being automatically turned off, which is characterized in that the bottom of the protection tube
It is formed with the boss stretched radially outward, which is resisted against on the inner wall of the needle stand；
There is the annular slot for blocking the boss on the inner wall of the middle and lower part of the needle stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821514132.6U CN209270484U (en) | 2018-09-13 | 2018-09-13 | A kind of disposable transfusion device being automatically turned off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821514132.6U CN209270484U (en) | 2018-09-13 | 2018-09-13 | A kind of disposable transfusion device being automatically turned off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209270484U true CN209270484U (en) | 2019-08-20 |
Family
ID=67603451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821514132.6U Expired - Fee Related CN209270484U (en) | 2018-09-13 | 2018-09-13 | A kind of disposable transfusion device being automatically turned off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209270484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110755714A (en) * | 2019-10-15 | 2020-02-07 | 无锡市人民医院 | Device for sequential infusion |
-
2018
- 2018-09-13 CN CN201821514132.6U patent/CN209270484U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110755714A (en) * | 2019-10-15 | 2020-02-07 | 无锡市人民医院 | Device for sequential infusion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190820 |