CN219847657U - Anti-backflow one-way valve and contrast infusion device with same - Google Patents
Anti-backflow one-way valve and contrast infusion device with same Download PDFInfo
- Publication number
- CN219847657U CN219847657U CN202321075993.XU CN202321075993U CN219847657U CN 219847657 U CN219847657 U CN 219847657U CN 202321075993 U CN202321075993 U CN 202321075993U CN 219847657 U CN219847657 U CN 219847657U
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- China
- Prior art keywords
- valve body
- lower cover
- upper cover
- liquid
- outlet end
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- 238000001802 infusion Methods 0.000 title claims description 8
- 239000007788 liquid Substances 0.000 claims abstract description 90
- 230000009471 action Effects 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000000151 anti-reflux effect Effects 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920002529 medical grade silicone Polymers 0.000 claims 1
- 238000002601 radiography Methods 0.000 claims 1
- 239000002872 contrast media Substances 0.000 description 8
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 229960002897 heparin Drugs 0.000 description 5
- 229920000669 heparin Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000002583 angiography Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000010100 anticoagulation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000216 vascular lesion Toxicity 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides an anti-backflow one-way valve and contrast transfusion equipment with the same, relates to the technical field of medical supplies, and mainly aims to solve the problem of backflow possibly occurring in a transfusion pipeline. The anti-backflow one-way valve comprises a valve body, an upper cover and a lower cover, wherein the upper cover and the lower cover are respectively positioned on two sides of the valve body, the upper cover and the lower cover are fixedly connected, and a space for accommodating the valve body is formed at the joint of the upper cover and the lower cover; the liquid flows into the lower cover through the upper cover and the valve body and is discharged through the lower cover; the valve body comprises a liquid inlet end and a liquid outlet end along the length direction of the valve body, the upper cover is fixedly arranged on the outer side of the liquid inlet end, the lower cover is fixedly arranged on the outer side of the liquid outlet end, and the liquid outlet end can deform under the action of pressure to open or close the valve body; when liquid flows from the liquid outlet end to the liquid inlet end through the lower cover, the liquid outlet end can be deformed and closed under the action of water pressure, and the valve body is in a closed state.
Description
Technical Field
The utility model relates to the technical field of medical supplies, in particular to an anti-backflow one-way valve and contrast transfusion equipment with the same.
Background
Angiography is an auxiliary examination technology, and is widely used for diagnosis and treatment of various clinical diseases in the advanced period of modern technology, so that doctors can find the disease condition in time, the disease progress is controlled, and the survival rate of patients is effectively improved. Angiography is an interventional detection method, and a developer is injected into blood vessels, so that the angiography can accurately reflect the position and degree of vascular lesions because X-rays cannot penetrate through the developer. The three-way connection is used for connecting a pressure sensor, heparin saline (used for anticoagulation) and contrast agent (used for contrast) respectively during operation. In the process of sucking contrast medium or heparin salt water, the three-way tee joint is required to be switched at least twice so that the contrast medium or heparin salt water enters the loop handle injector through the main pipeline of the three-way tee joint from the storage bottle, and then enters the human body through the main pipeline of the three-way tee joint from the loop handle injector. This process must be unidirectional, i.e. heparin water or contrast agent can only come out of the storage bottle, and liquid outside the storage bottle cannot enter the storage bottle, otherwise contamination can occur. Therefore, once the three-way valve is switched in wrong direction, heparin water or contrast agent in the storage bottle must be discarded, so that great waste is caused.
Therefore, in order to solve the above problems, to avoid the contamination of the water or contrast agent during the delivery process, it is necessary to develop a structure of the reverse flow preventing check valve capable of effectively preventing the inflow of the liquid.
Disclosure of Invention
The utility model aims to provide an anti-reflux one-way valve and contrast transfusion equipment with the same, which are used for solving the technical problem that the medicine liquid is easy to be polluted in the preparation process of the medicine liquid in the prior art. The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the anti-backflow one-way valve comprises a valve body, an upper cover and a lower cover, wherein the upper cover and the lower cover are respectively positioned on two sides of the valve body, the upper cover and the lower cover are fixedly connected, and a space for accommodating the valve body is formed at the joint of the upper cover and the lower cover; the liquid flows into the lower cover through the upper cover and the valve body and is discharged through the lower cover;
the valve body comprises a liquid inlet end and a liquid outlet end along the length direction of the valve body, the upper cover is fixedly arranged on the outer side of the liquid inlet end, the lower cover is fixedly arranged on the outer side of the liquid outlet end, and the liquid outlet end can deform under the action of pressure to open or close the valve body;
when liquid flows from the liquid outlet end to the liquid inlet end through the lower cover, the liquid outlet end can be deformed and closed under the action of water pressure, and the valve body is in a closed state.
The valve body controls the flowing direction of liquid by utilizing the liquid outlet end capable of generating elastic deformation under the action of pressure, and when the liquid reversely flows to the liquid outlet end of the valve body through the lower cover, the liquid outlet end can be deformed and closed under the action of the liquid pressure, so that the valve body is controlled to be in a closed state; otherwise, the liquid outlet end can be opened under the impact of liquid flow, so that the control valve body is in an opened state. The upper cover and the lower cover can be used for fixing the direction of liquid flow, and the normal use and installation of the valve body are prevented from being influenced by the deformability of the valve body.
On the basis of the technical scheme, the utility model can be improved as follows.
As a further improvement of the utility model, the liquid outlet end is of a flat structure.
As a further improvement of the utility model, the valve body is of a funnel-shaped structure; the inside inclined plane that is provided with of feed liquor end, through the feed liquor end inflow the internal partial liquid of valve can be through the inclined plane drainage extremely go out the liquid end.
As a further improvement of the utility model, a step hole is formed on the inner side wall of the lower cover, and the valve body can be connected with the lower cover through the step hole.
As a further improvement of the utility model, one end of the lower cover far away from the upper cover is also provided with a luer;
and/or, the outer peripheral side wall of the lower cover is also provided with an anti-slip strip.
As a further improvement of the utility model, the upper cover and the lower cover are welded.
As a further development of the utility model, the outer side of the upper cover forms a swivel connection for connection to the line.
As a further improvement of the utility model, the valve body is made of medical silica gel, and/or the upper cover and the lower cover are made of medical polycarbonate.
The utility model also provides contrast transfusion equipment, which comprises the anti-reflux one-way valve, an injector and a three-way tee, wherein the three-way tee is respectively connected with the anti-reflux one-way valve and the injector.
Compared with the prior art, the technical scheme provided by the preferred embodiment of the utility model has the following beneficial effects:
compared with the traditional infusion structure, the valve body is arranged between the upper cover and the lower cover, so that the limitation of the flowing direction of liquid can be realized on the premise of not influencing the liquid delivery, and the situations of liquid countercurrent and pollution to corresponding solutions are avoided; in addition, the valve body can control the flow direction of liquid flow by utilizing pressure deformation, and has simple and exquisite structure and convenient use; the infusion device using the anti-backflow one-way valve can effectively reduce operation difficulty, and avoid waste of heparin water or contrast agent and the like required by contrast due to errors.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of an anti-reflux check valve of the present utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is an exploded view of FIG. 1;
fig. 4 is a schematic view of the structure of the contrast infusion device of the present utility model.
In the figure: 1. a valve body; 11. a liquid inlet end; 12. a liquid outlet end; 13. an inclined surface; 2. an upper cover; 21. a rotary interface; 3. a lower cover; 31. a step hole; 32. a luer; 33. an anti-slip strip; 4. and the three is connected with a tee joint.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
The technical scheme of the utility model is specifically described below with reference to the accompanying drawings.
The utility model provides an anti-backflow one-way valve which mainly comprises a valve body 1, an upper cover 2 and a lower cover 3. Wherein, the upper cover 2 and the lower cover 3 are respectively positioned at two ends of the valve body 1 and are fixedly connected, and the valve body 1 is positioned between the upper cover 2 and the lower cover 3 as shown in fig. 1; that is, when the upper cover 2 and the lower cover 3 are fixedly coupled, a space for accommodating the valve body 1 can be just formed therebetween, and the valve body 1 is fixed in the space as shown in fig. 2.
In use, liquid can flow into the valve body 1 through the upper cover 2, then flow into the lower cover 3 through the valve body 1, and finally be discharged through the lower cover 3. The upper cover 2 and the lower cover 3 are hollow annular structures.
The valve body 1 comprises a liquid inlet end 11 and a liquid outlet end 12 along the length direction thereof, the upper cover 2 is fixedly arranged outside the liquid inlet end 11, the lower cover 3 is fixedly arranged outside the liquid outlet end 12, and the liquid outlet end 12 can deform under the action of pressure to open or close the valve body 1; when liquid flows from the liquid outlet end 12 to the liquid inlet end 11 through the lower cover 3, the liquid outlet end 12 can be deformed and closed under the action of water pressure, and the valve body 1 is in a closed state.
The valve body 1 controls the flow direction of liquid by using the liquid outlet end 12 capable of generating elastic deformation under the action of pressure, and when the liquid reversely flows to the liquid outlet end 12 of the valve body 1 through the lower cover 3, the liquid outlet end 12 can be deformed and closed under the action of the liquid pressure, so that the valve body 1 is controlled to be in a closed state; conversely, the liquid outlet end 12 can be opened under the impact of liquid flow, so that the valve body 1 is controlled to be in an opened state. The upper cover 2 and the lower cover 3 can be used for fixing the direction of liquid flow, so that the normal use and installation of the valve body 1 are prevented from being influenced by the deformability of the valve body 1.
It should be noted that, since the liquid outlet end 12 of the valve body 1 is capable of being deformed by pressure, this means that the liquid outlet end 12 of the valve body 1 is made of a material capable of being elastically deformed, such as silica gel or the like.
In order to facilitate the control of the on-off state of the liquid outlet end 12 of the valve body 1, in this embodiment, the liquid outlet end 12 has a flat structure, as shown in fig. 3.
Specifically, in the present embodiment and the similar embodiments, the valve body 1 has a funnel-shaped structure. That is, when the liquid flows from the round mouth side (i.e., the liquid inlet end 11) of the valve body 1 into the flat mouth side (i.e., the liquid outlet end 12), the flat mouth side is fluctuated under the impact of the water pressure; when the liquid flow reversely flows, the flat port side can be deformed and closed under the impact of the water pressure.
In order to facilitate the flow of the liquid and avoid the influence of the liquid flow on the normal use of the valve body 1, in this embodiment, the inside of the liquid inlet end 11 is provided with an inclined surface 13 which is arranged oppositely, and part of the liquid flowing into the valve body 1 through the liquid inlet end 11 can be drained to the liquid outlet end 12 through the inclined surface 13.
The number of the inclined surfaces 13 is two and are arranged oppositely as shown in fig. 3.
In order to firmly fix the valve body 1 to avoid the valve body 1 from shaking between the upper cover 2 and the lower cover 3, in the present embodiment, a stepped hole 31 is formed on the inner side wall of the lower cover 3, and the valve body 1 can be connected with the lower cover 3 through the stepped hole 31, as shown in fig. 2.
At least two stepped holes 31 are formed on the inner side wall of the lower cover 3, the upper cover 2 and the valve body 1 are respectively connected with the lower cover 3 through two different stepped holes 31, and at this time, the side edge of the liquid inlet end 11 of the valve body 1 is clamped between the upper cover 2 and the lower cover 3.
In this embodiment and similar embodiments, the connection between the upper cover 2 and the lower cover 3 may be fixedly connected by welding. The welding method may be ultrasonic welding.
In actual use, the upper cover 2 and the lower cover 3 need to be connected with other structures.
In this embodiment, a rotary connector 21 for connecting with a pipeline or other structures is formed on the outer side of the upper cover 2, and a luer connector 32 is further arranged at one end of the lower cover 3 away from the upper cover 2.
In actual use, the upper cover 2 can be connected with a storage bottle or an infusion pipeline which stores corresponding liquid through the rotary connector 21, and the lower cover 3 can be connected with a luer connector 32 on corresponding equipment.
For easy assembly and disassembly, an anti-slip strip 33 is also provided on the outer peripheral side wall of the lower cover 3.
Specifically, the number of the anti-slip strips 33 is plural and uniformly arranged along the outer peripheral side wall of the lower cover 3. The operator can grasp the anti-slip strip 33 and screw the lower cover 3, thereby realizing rapid loading and unloading of the anti-reflux one-way valve.
The valve body 1 is made of medical silica gel, and the upper cover 2 and the lower cover 3 are made of medical polycarbonate.
It can be understood that the anti-reflux one-way valve has exquisite structure and simple and convenient use, and can provide better anti-reflux effect.
The utility model also provides contrast transfusion equipment, as shown in fig. 4, which comprises the anti-reflux one-way valve, a syringe and a three-way tee 4, wherein the three-way tee 4 is respectively connected with the anti-reflux one-way valve and the syringe (the syringe is not drawn in the figure).
The above-mentioned syringe can be a common ring handle syringe, and the three-way connection 4 is also a common infusion device, and the structure thereof will not be described here.
When the contrast transfusion device is assembled, the lower cover 3 of the anti-backflow one-way valve is connected with the three-way valve 4, and the upper cover 2 is connected with a storage bottle filled with heparin brine or contrast agent.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (9)
1. The anti-backflow one-way valve is characterized by comprising a valve body, an upper cover and a lower cover, wherein the upper cover and the lower cover are respectively positioned at two sides of the valve body, the upper cover and the lower cover are fixedly connected, and a space for accommodating the valve body is formed at the joint of the upper cover and the lower cover; the liquid flows into the lower cover through the upper cover and the valve body and is discharged through the lower cover;
the valve body comprises a liquid inlet end and a liquid outlet end along the length direction of the valve body, the upper cover is fixedly arranged on the outer side of the liquid inlet end, the lower cover is fixedly arranged on the outer side of the liquid outlet end, and the liquid outlet end can deform under the action of pressure to open or close the valve body;
when liquid flows from the liquid outlet end to the liquid inlet end through the lower cover, the liquid outlet end can be deformed and closed under the action of water pressure, and the valve body is in a closed state.
2. The anti-reflux one-way valve of claim 1, wherein the liquid outlet end is of a flat configuration.
3. The anti-reverse flow check valve according to claim 1 or 2, wherein the valve body is of a funnel-shaped structure; the inside inclined plane that is provided with of feed liquor end, through the feed liquor end inflow the internal partial liquid of valve can be through the inclined plane drainage extremely go out the liquid end.
4. The reverse flow preventing one-way valve according to claim 1, wherein a stepped hole is formed on an inner sidewall of the lower cover, and the valve body can be connected with the lower cover through the stepped hole.
5. The anti-reflux one-way valve according to claim 1, wherein one end of the lower cover, which is far away from the upper cover, is further provided with a luer;
and/or, the outer peripheral side wall of the lower cover is also provided with an anti-slip strip.
6. The anti-reflux one-way valve according to claim 1, wherein the upper cover and the lower cover are welded together.
7. The reverse flow preventing one-way valve according to claim 1, wherein the outer side of the upper cover forms a rotary joint for connection with a pipe.
8. The anti-reflux one-way valve according to claim 1, wherein the valve body is made of medical silicone and/or the upper and lower covers are made of medical polycarbonate.
9. An infusion device for radiography, characterized by comprising the anti-reflux one-way valve according to any one of claims 1-8, further comprising a syringe and a tri-connection tee, wherein the tri-connection tee is respectively connected with the anti-reflux one-way valve and the syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321075993.XU CN219847657U (en) | 2023-05-08 | 2023-05-08 | Anti-backflow one-way valve and contrast infusion device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321075993.XU CN219847657U (en) | 2023-05-08 | 2023-05-08 | Anti-backflow one-way valve and contrast infusion device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219847657U true CN219847657U (en) | 2023-10-20 |
Family
ID=88341249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321075993.XU Active CN219847657U (en) | 2023-05-08 | 2023-05-08 | Anti-backflow one-way valve and contrast infusion device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219847657U (en) |
-
2023
- 2023-05-08 CN CN202321075993.XU patent/CN219847657U/en active Active
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