CN213347449U - Male one-way valve and infusion device - Google Patents
Male one-way valve and infusion device Download PDFInfo
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- CN213347449U CN213347449U CN202020820696.3U CN202020820696U CN213347449U CN 213347449 U CN213347449 U CN 213347449U CN 202020820696 U CN202020820696 U CN 202020820696U CN 213347449 U CN213347449 U CN 213347449U
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Abstract
The utility model discloses a male one-way valve and an infusion device, wherein the male one-way valve comprises a straight-through pipe, a connecting main body, a gasket and a male joint, and the straight-through pipe is provided with a liquid inlet hole; the connecting body is provided with a liquid passing channel, and the straight-through pipe is fixedly connected to the connecting body so as to communicate the liquid passing channel with the liquid inlet hole; the gasket is arranged in the straight-through pipe and positioned between the liquid passing channel of the connecting main body and the liquid inlet hole of the straight-through pipe so as to be used for blocking liquid from reversely flowing into the straight-through pipe through the liquid passing channel; the male connector is internally provided with internal threads to be in threaded connection with a connecting connector with female end threads, the outer wall of the connecting main body, which is far away from one end of the straight-through pipe, is sleeved with the male connector, and the male connector can rotate relative to the connecting main body. The utility model discloses public check valve's male joint can rotate for the joint main part among the technical scheme, avoids taking place the coiling phenomenon with direct union coupling's infusion pipeline, improves public check valve's usability and reliability.
Description
Technical Field
The utility model relates to the technical field of medical treatment, in particular to public check valve and infusion set who uses this public check valve.
Background
In the infusion process, infusion set's public check valve and the female end of cylinder are through screw-thread fit connection, however in medical personnel's operation process, when being connected public check valve's one end and transfer line earlier, female end or the remaining connecting pipe threaded connection that has female end and connect with public check valve's the other end and the cylinder again, lead to when public check valve connects, the circumstances that can make the infusion pipeline of being connected with public check valve appear crooked and convolute, influence infusion set's use.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a check valve, aims at improving the problem that the infusion pipeline can be coiled when traditional public check valve is connected with the attach fitting that has female end screw thread.
In order to achieve the above object, the utility model provides a public check valve, include:
the straight-through pipe is provided with a liquid inlet hole;
the connecting body is provided with a liquid passing channel, and the straight-through pipe is fixedly connected to the connecting body so as to communicate the liquid passing channel with the liquid inlet hole;
the gasket is arranged in the through pipe and positioned between the liquid passing channel of the connecting body and the liquid inlet hole of the through pipe so as to be used for blocking liquid from reversely flowing into the through pipe through the liquid passing channel; and
the male connector is internally provided with internal threads to be in threaded connection with a connecting connector with female end threads, the male connector is sleeved on the outer wall of the connecting main body, which is far away from one end of the straight-through pipe, and the male connector can rotate relative to the connecting main body.
In an embodiment of the application, the connecting body includes a main body portion, a first limiting portion and a second limiting portion, the liquid passing channel is disposed on the main body portion, the first limiting portion and the second limiting portion are disposed around an outer surface of the main body portion, and a clamping portion is disposed in the male joint in a protruding manner;
the male connector is sleeved on the outer wall of the main body part of the connecting main body, so that the clamping part is located between the first limiting part and the second limiting part, and the male connector can rotate relative to the connecting main body.
In an embodiment of the application, a guiding inclined plane is formed on one side of the first limiting part, which deviates from the second limiting part, and the guiding inclined plane is used for guiding the clamping part to move and is located between the first limiting part and the second limiting part.
In an embodiment of the present application, an abutting inclined surface abutting and matching with the guiding inclined surface is formed on one side of the clamping portion facing the second limiting portion.
In an embodiment of the present application, the male connector further includes a connecting portion and a handling portion, the connecting portion has a first through hole, the handling portion has a second through hole, the connecting portion is connected to the handling portion, and the first through hole is communicated with the second through hole;
the internal thread is arranged in the first through hole of the connecting part, and the clamping part is connected in the second through hole of the operating part and close to one side of the connecting part.
In an embodiment of the present application, the male connector further includes a non-slip portion connected to an outer surface of the handling portion.
In an embodiment of the present application, the anti-slip portion is a plurality of protrusions arranged at intervals.
In an embodiment of the application, the through pipe is concavely provided with a mounting groove on the surface of the liquid inlet hole, the gasket is embedded in the mounting groove, and a liquid passing gap is formed between the side wall of the gasket and the side wall of the mounting groove.
In an embodiment of the present application, an abutting portion is convexly provided at an end of the connecting body facing the through pipe, for abutting against the gasket.
The present application further provides an infusion device, including public check valve, public check valve includes:
the straight-through pipe is provided with a liquid inlet hole;
the connecting body is provided with a liquid passing channel, and the straight-through pipe is fixedly connected to the connecting body so as to communicate the liquid passing channel with the liquid inlet hole;
the gasket is arranged in the through pipe and positioned between the liquid passing channel of the connecting body and the liquid inlet hole of the through pipe so as to be used for blocking liquid from reversely flowing into the through pipe through the liquid passing channel; and
the male connector is internally provided with internal threads and is used for being in threaded connection with a connecting connector with female end threads, one end of the connecting main body, which is deviated from the straight-through pipe, is inserted and contained in the male connector, and the male connector can rotate relative to the connecting main body.
The utility model discloses technical scheme's public check valve is including the direct pipe that is equipped with the feed liquor hole and the connecting main body that is equipped with liquid passageway, and direct pipe fixed connection is in connecting main body to make liquid passageway and feed liquor hole intercommunication, still be equipped with the gasket simultaneously and be located direct intraductal, can prevent that liquid from advancing direct through by passing the reverse flow of liquid passageway. In addition, the male check valve is also provided with a male connector, internal threads are arranged in the male connector and are used for being in threaded connection with a connecting connector with female end threads, the male connector is sleeved on the outer wall of one end, away from the straight-through pipe, of the connecting main body, and the male connector can rotate relative to the connecting main body. So after the whole cooperation of public check valve is connected, medical personnel will lead through the one end that the pipe deviates from the feed liquor hole and be connected with the infusion pipeline, again with male joint and the attach fitting threaded connection who has female end screw thread, and because the male joint can rotate for the attach fitting, consequently the public joint can not influence the infusion pipeline of attach fitting and through pipe and through union coupling in the rotation process operation, avoid taking place the coiling phenomenon with the infusion pipeline of through union coupling, avoid causing the influence to the infusion, improve public check valve's usability and reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a sectional view of an assembly structure of an embodiment of the male check valve of the present invention;
fig. 2 is an explosion structure diagram of an embodiment of the public check valve of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Male one- |
24 | Abutting |
| 10 | Straight-through |
30 | |
| 11 | |
40 | |
| 12 | |
41 | Clamping |
| 20 | Connecting |
411 | Abutting |
| 21 | |
42 | Connecting |
| 211 | Liquid passing |
421 | First through hole |
| 22 | A |
43 | |
| 221 | |
431 | Second through |
| 23 | |
44 | Anti-skid part |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a public check valve 100.
Referring to fig. 1 and 2, in an embodiment of the present application, the male check valve 100 includes a through pipe 10, a connection body 20, a gasket 30, and a male connector 40, the through pipe 10 being provided with a liquid inlet hole 11; the connecting body 20 is provided with a liquid passing channel 211, and the straight-through pipe 10 is fixedly connected to the connecting body 20 so as to communicate the liquid passing channel 211 with the liquid inlet hole 11; the gasket 30 is arranged in the straight-through pipe 10 and is positioned between the liquid passing channel 211 of the connecting body 20 and the liquid inlet hole 11 of the straight-through pipe 10 so as to be used for blocking liquid from reversely flowing into the straight-through pipe 10 through the liquid passing channel 211; the male connector 40 is internally provided with internal threads for being in threaded connection with a connection connector with female end threads, the male connector 40 is sleeved on the outer wall of the connection body 20 at one end away from the straight-through pipe 10, and the male connector 40 can rotate relative to the connection body 20.
The straight-through pipe 10 and the connecting body 20 can be connected by means of snap connection or interference fit, or by means of ultrasound or glue dispensing, so that the liquid inlet hole 11 and the liquid passing channel 211 are communicated. The connection joint with the female end screw thread can be a female end of a needle cylinder or a connection pipe with the female end, the gasket 30 is arranged in the straight-through pipe 10 and is positioned between the liquid passing channel 211 of the connection main body 20 and the liquid inlet hole 11 of the straight-through pipe 10, so that when liquid flows in from the straight-through pipe 10, the liquid has certain pressure on the gasket 30, the gap between the gasket 30 and the straight-through pipe 10 is increased, and the liquid sequentially flows through the straight-through pipe 10, the gap between the straight-through pipe 10 and the gasket 30 and the liquid passing channel 211, so that the effect that the liquid flows in from the straight-through pipe 10 and flows out from the connection main body 20 is achieved. On the contrary, when the liquid flows in from the flow channel of the connecting body 20, the liquid has a reverse acting force to the gasket 30 toward the through pipe 10, so that the gasket 30 is abutted against the through pipe 10 and blocks the liquid inlet hole 11 of the through pipe 10, and the liquid cannot flow into the through pipe 10 through the liquid inlet hole 11, thereby realizing the one-way flow effect of the one-way valve. Meanwhile, the gasket 30 is arranged, so that a starting pressure value still exists in the male check valve, and the male check valve is opened only when the pressure value of liquid reaches the starting pressure value, so that liquid dropping of the male check valve connected with the infusion tube in a static process can be prevented. It is understood that the gasket 30 may be an elastic body having elasticity, such as rubber or silicone.
The utility model discloses technical scheme's public check valve 100 is including the direct pipe 10 that is equipped with feed liquor hole 11 and the connecting main body 20 that is equipped with liquid passageway 211, and direct pipe 10 fixed connection is in connecting main body 20 to make liquid passageway 211 and feed liquor hole 11 intercommunication, still be equipped with gasket 30 simultaneously and be located direct pipe 10, in order to be used for shutoff liquid by passing through the direct pipe 10 of liquid passageway 211 reverse flow income. The male check valve 100 is further provided with a male connector 40, wherein an internal thread is arranged in the male connector 40 for performing a threaded connection with a connection connector having a female end thread, the male connector 40 is sleeved on an outer wall of the connection body 20 at an end away from the straight-through pipe 10, and the male connector 40 can rotate relative to the connection body 20. So after the whole cooperation of public check valve 100 is connected, medical personnel will lead through the pipe 10 and deviate from the one end and the infusion pipeline of feed liquor hole 11 and be connected, again with the attach fitting threaded connection of female end screw thread with male joint 40, and because male joint 40 can rotate for connecting subject 20, consequently the infusion pipeline that connecting subject 20 and through pipe 10 are connected can not be influenced in the rotation process operation of male joint 40, avoid taking place the coiling phenomenon with the infusion pipeline that through pipe 10 is connected, avoid causing the influence to the infusion, improve public check valve 100's usability and reliability.
In an embodiment of the present application, the connecting body 20 includes a main body 21, a first limiting portion 22 and a second limiting portion 23, the liquid passing channel 211 is disposed on the main body 21, the first limiting portion 22 and the second limiting portion 23 are disposed around the outer surface of the main body 21, and a clamping portion 41 is convexly disposed in the male connector 40; the male connector 40 is sleeved on the outer wall of the main body 21 of the connecting body 20, so that the clamping portion 41 is located between the first limiting portion 22 and the second limiting portion 23, and the male connector 40 can rotate relative to the connecting body 21.
Specifically, in order to ensure the stability of the structure, the first limiting portion 22, the second limiting portion 23 and the main body portion 21 may be an integral structure, for example, they may be formed by integral injection molding, which not only saves the installation process, but also improves the connection strength of the first limiting portion 22, the second limiting portion 23 and the main body portion 21. The male connector 40 is sleeved on the outer wall of the main body 21 of the connecting main body 20, and the clamping portion 41 is clamped between the first limiting portion 22 and the second limiting portion 23, so that the movement of the male connector 40 along the direction departing from the straight-through pipe 10 can be limited by the first limiting portion 22, and the movement of the male connector 40 along the direction towards the straight-through pipe 10 can be limited by the second limiting portion 23, and therefore the connecting main body 20 and the male connector 40 are connected stably, and the use safety is improved. Meanwhile, due to the gap between the main body part 21 and the clamping part 41, the main body part 21 and the male connector 40 are stably connected, and the male connector 40 can rotate relative to the connecting body, so that medical workers cannot drive the connecting body 20 to synchronously rotate when rotating the male connector 40, and the winding condition of the infusion pipeline valve connected with the straight-through pipe 10 is avoided. In order to avoid the influence of the first position-limiting portion 22 when the male connector 40 is screwed into the female connector, the volume of the first position-limiting portion 22 is properly reduced, and the overall strength of the connecting body 20 is prevented from being too small, so that the cross-sectional area of the second position-limiting portion 23 extending along the length direction of the body portion 21 is larger than the cross-sectional area of the first position-limiting portion 22 extending along the length direction of the body portion 21, and the volume of the second position-limiting portion 23 is ensured to be larger than the volume of the first position-limiting portion 22, so as to ensure the overall strength of the connecting body 20. It should be noted that, the connection mode of the connecting main body 20 and the male connector 40 may also be that a convex block is convexly provided on the outer surface of the connecting main body 20, a groove is concavely provided on the inner wall of the male connector 40, the convex block is clamped into the groove, and a gap exists between the outer wall of the convex block and the side wall of the groove, so that the stability of the connection of the connecting main body 20 can also be realized, and meanwhile, the male connector 40 can rotate relative to the connecting main body 20, which can be specifically selected by those skilled in the art, and will not be described herein.
Further, a guide inclined plane 221 is formed on one side of the first limiting portion 22 departing from the second limiting portion 23, and the guide inclined plane 221 is used for guiding the movement of the clamping portion 41 and is located between the first limiting portion 22 and the second limiting portion 23. It is comparatively convenient when male joint 40 and connecting body 20 in order to make medical personnel connect in the operation, thereby one side that deviates from the spacing portion 23 of second in first spacing portion 22 is formed with direction inclined plane 221, so when inserting connecting body 20 in the male joint 40 in-process, joint portion 41 can extrude with the first butt of spacing portion 22, and through the setting of direction inclined plane 221, so that joint portion 41 takes place to deform along the direction that deviates from first spacing portion 22, make joint portion 41 block between first spacing portion 22 and the spacing portion 23 of second comparatively easily.
Furthermore, an abutting inclined surface 411 which is in abutting fit with the guiding inclined surface 221 is formed on one side of the clamping portion 41 facing the second limiting portion 23. In order to further improve the convenience of the male connector 40 and the connecting body 20, an abutting inclined surface 411 which is matched with the guiding inclined surface 221 in an abutting mode can be formed on one side, facing the second limiting portion 23, of the clamping portion 41, so that the clamping portion 41 is deformed along the direction departing from the first limiting portion 22 more easily, the connecting operation difficulty of medical staff is reduced, and the usability of the product is improved.
In an embodiment of the present application, the male connector 40 further includes a connecting portion 42 and a handling portion 43, the connecting portion 42 is opened with a first through hole 421, the handling portion 43 is opened with a second through hole 431, the connecting portion 42 is connected with the handling portion 43, and the first through hole 421 is communicated with the second through hole 431; the internal thread is disposed in the first through hole 421 of the connecting portion 42, and the engaging portion 41 is connected to the second through hole 431 of the operating portion 43 and is close to one side of the connecting portion 42. Specifically, the operating part 43, the connecting part 42 and the clamping part 41 can be of an integral structure, so that the installation process is omitted, the connection strength of the operating part 43, the connecting part 42 and the clamping part 41 is improved, the overall strength of the male connector 40 can be ensured only by arranging the internal thread on the connecting part 42, the accuracy of the connection direction can be ensured when medical workers connect the male connector, and the condition that infusion cannot be carried out due to the wrong connection direction is avoided.
Further, the male connector 40 further includes a non-slip portion 44, and the non-slip portion 44 is connected to an outer surface of the handling portion 43. Specifically, in order to further prevent the medical staff from releasing his/her hands when the male connector 40 is rotated, the anti-slip portion 44 is connected to the outer surface of the handling portion 43 of the male connector 40, so that the friction force between the medical staff and the male connector 40 is increased, and the medical staff is not easily released and saves labor when rotated.
Further, the anti-slip portion 44 is a plurality of protrusions arranged at intervals. In order to facilitate production and reduce production cost, the anti-slip portion 44 may be a plurality of protrusions integrally formed with the operating portion 43, in this embodiment, the protrusions are in a shape of a strip, and the arrangement direction of the protrusions is the same as the direction of the rotating operating portion 43, so as to play a role of anti-slip, although the protrusions may have other shapes, such as round dots of the protrusions, and the like, and specifically, the number and size of the protrusions may be set according to the specific size of the operating portion 43, and will not be described herein again. Of course, the anti-slip part 44 may be made of cotton cloth having a large friction force, and may be adhered to the operation part 43, thereby ensuring the stability of the medical staff during the operation.
In an embodiment of the present application, the straight-through pipe 10 is concavely provided with a mounting groove 12 on the surface of the liquid inlet hole 11, the gasket 30 is embedded in the mounting groove 12, and a liquid passing gap is formed between the side wall of the gasket 30 and the side wall of the mounting groove 12. Specifically, in order to facilitate the installation of the gasket 30 by a user, the through pipe 10 is concavely provided with the installation groove 12 on the surface of the liquid inlet hole 11, so that the user can directly embed the gasket 30 in the installation groove 12, the side wall of the gasket 30 and the side wall of the installation groove 12 form a liquid passing gap, and the opening size of the liquid inlet hole 11 of the through pipe 10 is smaller than that of the gasket 30, therefore, when liquid flows in from the through pipe 10, the gasket 30 is separated from the liquid inlet hole 11 of the through pipe 10 due to the pressure of the liquid, so that the liquid flows through the liquid inlet hole 11, flows to the liquid passing channel 211 of the connecting body 20 through the liquid passing gap, and when the liquid flows from the connecting body 20 to the through pipe 10, the gasket 30 blocks the liquid inlet hole 11 due to the pressure of the liquid, so as to prevent the liquid from reversely flowing back into the. In addition, a communication hole can be formed in the gasket 30, the communication hole 310 can simultaneously penetrate through the gasket 30 towards the through pipe 10 and the end face of the connecting body 20, and the communication hole is not arranged corresponding to the liquid inlet hole 11 of the through pipe 10, so that when liquid flows in from the through pipe 10, the gasket 30 is separated from the through pipe 10, and the through pipe 10 is communicated with the liquid passing channel 211 of the connecting body 20 through the communication hole; when liquid flows in from the liquid passing channel 211 of the connecting body 20, the gasket 30 is pressed against the through pipe 10 and blocks the liquid inlet hole 11 of the through pipe 10.
Further, an abutting portion 24 is convexly provided at an end of the connecting body 20 facing the through pipe 10 for abutting against the gasket 30. Specifically, in order to avoid the gasket 30 from being separated from the liquid inlet hole 11 by an excessively large distance, the abutting portion 24 is convexly disposed at one end of the connecting body 20 facing the through pipe 10, so as to abut against the gasket 30 when the gasket 30 is separated from the liquid inlet hole 11, thereby limiting the moving distance of the gasket 30, avoiding the gasket 30 from moving by an excessively large distance and failing to achieve a good blocking effect, and further ensuring the stability and usability of the overall structure of the male check valve 100.
The utility model discloses still provide an infusion set, this infusion set includes public check valve 100, and this public check valve 100's specific structure refers to above-mentioned embodiment, because this infusion set has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. A male check valve, comprising:
the straight-through pipe is provided with a liquid inlet hole;
the connecting body is provided with a liquid passing channel, and the straight-through pipe is fixedly connected to the connecting body so as to communicate the liquid passing channel with the liquid inlet hole;
the gasket is arranged in the through pipe and positioned between the liquid passing channel of the connecting body and the liquid inlet hole of the through pipe so as to be used for blocking liquid from reversely flowing into the through pipe through the liquid passing channel; and
the male connector is internally provided with internal threads to be in threaded connection with a connecting connector with female end threads, the male connector is sleeved on the outer wall of the connecting main body, which is far away from one end of the straight-through pipe, and the male connector can rotate relative to the connecting main body.
2. The male check valve as claimed in claim 1, wherein the connecting body comprises a main body, a first limiting portion and a second limiting portion, the liquid passing channel is disposed on the main body, the first limiting portion and the second limiting portion are disposed around the outer surface of the main body, and a clamping portion is disposed in the male joint in a protruding manner;
the male connector is sleeved on the outer wall of the main body part of the connecting main body, so that the clamping part is located between the first limiting part and the second limiting part, and the male connector can rotate relative to the connecting main body.
3. The male check valve as claimed in claim 2, wherein a guide slope is formed on a side of the first position-limiting portion facing away from the second position-limiting portion, the guide slope being used for guiding the movement of the engaging portion and being located between the first position-limiting portion and the second position-limiting portion.
4. The male check valve as claimed in claim 3, wherein an abutting inclined surface which is in abutting engagement with the guiding inclined surface is formed on one side of the clamping portion facing the second limiting portion.
5. The male check valve as claimed in claim 2, wherein the male connector further comprises a connecting portion and a handling portion, the connecting portion defines a first through hole, the handling portion defines a second through hole, the connecting portion is connected with the handling portion, and the first through hole is communicated with the second through hole;
the internal thread is arranged in the first through hole of the connecting part, and the clamping part is connected in the second through hole of the operating part and close to one side of the connecting part.
6. The male check valve as claimed in claim 5, wherein the male connector further comprises a non-slip portion connected to an outer surface of the handling portion.
7. The male check valve as claimed in claim 6, wherein the non-slip portion is a plurality of protrusions spaced apart from each other.
8. The male check valve according to any one of claims 1 to 7, wherein the straight-through pipe is concavely provided with a mounting groove on the surface of the liquid inlet hole, the gasket is embedded in the mounting groove, and a liquid passing gap is formed between the side wall of the gasket and the side wall of the mounting groove.
9. The male check valve as claimed in claim 8, wherein an end of the connecting body facing the through pipe is convexly provided with an abutment portion for abutting against the gasket.
10. An infusion device comprising a male one-way valve as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020820696.3U CN213347449U (en) | 2020-05-15 | 2020-05-15 | Male one-way valve and infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020820696.3U CN213347449U (en) | 2020-05-15 | 2020-05-15 | Male one-way valve and infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213347449U true CN213347449U (en) | 2021-06-04 |
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ID=76126342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020820696.3U Active CN213347449U (en) | 2020-05-15 | 2020-05-15 | Male one-way valve and infusion device |
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| CN (1) | CN213347449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730714A (en) * | 2021-10-12 | 2021-12-03 | 郑州大学第一附属医院 | Anti-drop self-sealing joint assembly for medical liquid passage |
-
2020
- 2020-05-15 CN CN202020820696.3U patent/CN213347449U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730714A (en) * | 2021-10-12 | 2021-12-03 | 郑州大学第一附属医院 | Anti-drop self-sealing joint assembly for medical liquid passage |
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