CN216855405U - Positive pressure infusion joint - Google Patents
Positive pressure infusion joint Download PDFInfo
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- CN216855405U CN216855405U CN202123105616.XU CN202123105616U CN216855405U CN 216855405 U CN216855405 U CN 216855405U CN 202123105616 U CN202123105616 U CN 202123105616U CN 216855405 U CN216855405 U CN 216855405U
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- piston valve
- accommodating cavity
- positive pressure
- top surface
- pressure infusion
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Abstract
The utility model provides a positive pressure infusion joint, which comprises: a base; the shell is arranged on the base, a connecting hole is formed in the top surface of the shell, and a first accommodating cavity communicated with the connecting hole is formed in the shell; the piston valve is installed in the first accommodating cavity, a cross-shaped protruding block is arranged on the top surface of the piston valve, the cross-shaped protruding block penetrates out of the connecting hole to be located outside the shell, and the joint of the cross-shaped protruding block and the piston valve is rounded. The top surface of the piston valve is provided with a cross-shaped convex block, and the joint of the cross-shaped convex block and the piston valve is subjected to rounding off treatment, so that the surface of the piston valve is smooth and has no dead angle, and medical personnel can conveniently and thoroughly disinfect the piston valve.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a positive pressure infusion joint.
Background
At present, infusion nursing is an important nursing operation in clinical care, in the clinical nursing work, in order to avoid the pain of repeated puncture brought to patients, a venous indwelling needle is usually used for the patients needing to be infused for a long time, the tail end of the indwelling needle is connected with a positive pressure infusion connector used for connecting an external infusion apparatus, along with the continuous expansion of the application range of the indwelling needle, the application range of the positive pressure infusion connector is also continuously expanded, and the positive pressure infusion connector is popularized and used in various clinical departments.
Because the positive pressure infusion connector needs to be used for a long time, the piston valve which is used for being connected with an external infusion apparatus on the positive pressure infusion connector is isolated from the air by the piston valve in an unused state, bacteria in the air are prevented from entering the interior of the infusion connector, the piston valve part can be exposed in the air for a long time, the bacteria are easily attached to the piston valve, and therefore before infusion at every time, medical workers need to disinfect the piston valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a positive pressure infusion connector, and aims to solve the technical problem that piston valves are not disinfected completely due to inconvenience in disinfection of the piston valves in the prior art.
In order to achieve the above object, the present invention provides a positive pressure infusion connector, comprising:
a base;
the shell is arranged on the base, a connecting hole is formed in the top surface of the shell, and a first accommodating cavity communicated with the connecting hole is formed in the shell;
the piston valve is installed in the first accommodating cavity, a cross-shaped lug is arranged on the top surface of the piston valve and penetrates out of the connecting hole to be located outside the shell, and the joint of the cross-shaped lug and the piston valve is rounded. The surface of the piston valve is smooth and has no dead angle, so that medical personnel can conveniently and thoroughly disinfect the piston valve.
Preferably, the top surface of the piston valve is flush with or higher than the top surface of the housing. The medical staff can be ensured to carry out complete disinfection to the top surface of the piston valve, and the piston valve has no dead angle which can not be disinfected.
Preferably, the piston valve is provided with a second accommodating cavity, and an elastic piece for increasing the resilience force of the piston valve is arranged in the second accommodating cavity. The second containing cavity is internally provided with an elastic piece to improve the resilience of the piston valve.
Preferably, the first accommodating cavity comprises an upper accommodating cavity and a lower accommodating cavity which are sequentially communicated from top to bottom, and the inner diameter of the lower accommodating cavity is larger than that of the upper accommodating cavity; the piston valve comprises an upper part and a lower part which are sequentially connected up and down, the lower part is provided with the second accommodating cavity, and the outer diameter of the lower part is larger than that of the upper part; the upper portion is located in the upper accommodating cavity, and the lower portion is located in the lower accommodating cavity. The lower containing cavity is matched with the lower part to generate positive pressure, so that blood backflow is avoided, and blockage of the indwelling needle caused by thrombus formation is avoided.
Preferably, the elastic member is a spring, one end of the elastic member abuts against the inner top surface of the second accommodating cavity, and the other end of the elastic member abuts against the base. The resilience of the piston valve is improved by utilizing the characteristics of the spring.
Preferably, a first guide post is arranged on the inner top surface of the second accommodating cavity, one end of the elastic piece is sleeved on the first guide post, a second guide post is arranged on the base, the other end of the elastic piece is sleeved on the second guide post, and a gap is formed between the first guide post and the second guide post. The first guide post and the second guide post play a role in limiting the spring.
Preferably, the elastic part is an S-shaped reinforcing rib, and the elastic part is disposed on the inner wall of the second accommodating cavity. The resilience force of the piston valve is improved, and the positive pressure infusion joint can be used in a CT room or a nuclear magnetic resonance room.
Preferably, an infusion groove is formed in the side wall of the first accommodating cavity. The delivery of the liquid medicine is convenient.
Preferably, the base is provided with an exhaust hole communicated with the second accommodating cavity. When the piston valve is compressed or rebounded, air in the second accommodating cavity can enter or be exhausted from the air exhaust hole.
Preferably, the outer wall of the shell is provided with a female luer connector, and the female luer connector is used for being connected with a male luer connector on an externally-connected infusion apparatus. The transfusion device is convenient to be connected with an external transfusion device, and the use requirement of the positive pressure transfusion connector is met.
The positive pressure transfusion joint has the following beneficial effects: the top surface of piston valve is provided with the cross lug, and the junction of cross lug and piston valve has done the radius angle and has handled, makes the surperficial slick and sly no dead angle of piston valve, makes things convenient for medical personnel to carry out thorough disinfection to the piston valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 schematic view of a positive pressure infusion connector according to an embodiment of the present invention;
FIG. 2 is a schematic view of a positive pressure infusion connector according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a second positive pressure infusion connector according to an embodiment of the utility model;
FIG. 4 is a schematic view of the use state of a second positive pressure infusion connector according to an embodiment of the utility model;
FIG. 5 is an exploded view of a positive pressure infusion connector in accordance with an embodiment of the present invention;
FIG. 6 is an exploded view of a second positive pressure infusion connector in accordance with an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a base according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a second base according to an embodiment of the present invention;
fig. 9 is a schematic structural view of the housing and the cross bumps.
In the drawings: 1-base, 11-second guide post, 12-exhaust hole, 13-liquid outlet hole, 2-shell, 21-connecting hole, 22-transfusion groove, 23-female luer connector, 3-first containing cavity, 31-upper containing cavity, 32-lower containing cavity, 4-piston valve, 41-upper part, 42-lower part, 421-second containing cavity, 422-first guide post, 5-cross lug and 6-elastic element.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment 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, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 9, a positive pressure infusion connector comprises:
a base 1;
the shell 2 is installed on the base 1, a connecting hole 21 is formed in the top surface of the shell 2, and a first accommodating cavity 3 communicated with the connecting hole 21 is formed in the shell 2;
and the piston valve 4 is installed in the first accommodating cavity 3, a cross-shaped lug 5 is arranged on the top surface of the piston valve 4, the cross-shaped lug 5 penetrates out of the connecting hole 21 to be positioned outside the shell 2, and the joint of the cross-shaped lug 5 and the piston valve 4 is rounded.
Concretely, a positive pressure infusion joint, including base 1, shell 2 and piston valve 4, set up on the base 1 and be used for the liquid outlet hole 13 that the liquid medicine flows out. The base 1 and the housing 2 are joined together by ultrasonic welding. The top surface of the shell 2 is provided with a connecting hole 21, and an external infusion apparatus is inserted into the shell 2 from the connecting hole 21, so that the external infusion apparatus is connected with the positive pressure infusion joint. The housing 2 is further provided with a first accommodating cavity 3 communicated with the connecting hole 21, the piston valve 4 is made of a known elastic material, the piston valve 4 is installed in the first accommodating cavity 3, and the top surface of the piston valve 4 is provided with a cross-shaped lug 5. The cross-shaped bump 5 penetrates out of the connecting hole 21, the cross-shaped bump 5 is located outside the shell 2, the connecting part of the cross-shaped bump 5 and the piston valve 4 is rounded, so that dead angles between the cross-shaped bump 5 and the piston valve 4 are reduced, the medical staff can conveniently and comprehensively disinfect the surface of the silica gel valve, and the situation that the dead angles cannot be disinfected is avoided.
The working process is as follows: external infusion apparatus and 5 butt of cross lug, then cross lug 5 receives external infusion apparatus's pressure, piston valve 4 receives pressure and just begins the compression, makes external infusion apparatus insert in shell 2, because certain gap has been left to cross lug 5 between the top surface of external infusion apparatus and piston valve 4, liquid medicine that external infusion apparatus carried flows into to first holding chamber 3 from the gap, and liquid medicine flows out from the play liquid hole 13 of base 1 again and carries to the human body.
Further, the top surface of the piston valve 4 is flush with or higher than the top surface of the housing 2.
Specifically, the top surface of the piston valve 4 serves as a surface of the positive pressure infusion connector which is in contact with the outside, and the top surface of the piston valve 4 is easily attached by bacteria in the air. However, if bacteria enter the human body, medical accidents are easily caused. Therefore, in order to ensure that the bacteria attached to the top surface of the piston valve 4 cannot enter the human body, before the external infusion apparatus is connected with the positive pressure infusion connector, the medical staff can sterilize the top surface of the piston valve 4, kill the bacteria attached to the top surface of the piston valve 4, prevent the bacteria from entering the positive pressure infusion connector when the bacteria are connected with the positive pressure infusion connector through the external infusion apparatus, and then enter the human body to cause medical accidents. Thus, the top surface of the piston valve 4 is flush with the top surface of the housing 2 or higher than the top surface of the housing 2, ensuring that the medical staff can sterilize the top surface of the piston valve 4 in its entirety. If the top surface of the piston valve 4 is positioned in the first accommodating cavity 3, a disinfection dead angle is easy to occur, so that the disinfection is insufficient, and bacteria enter a human body to cause medical accidents.
Further, the piston valve 4 is provided with a second accommodating cavity 421, and an elastic member 6 for increasing the resilience of the piston valve 4 is arranged in the second accommodating cavity 421.
Specifically, the piston valve 4 in the normal state blocks the entire connection hole 21, isolating the positive pressure infusion connector from the outside. When infusion is needed, an external infusion apparatus is connected with the positive pressure infusion joint, and the piston valve 4 is stressed to be compressed downwards to form a channel for the medicine liquid to enter the positive pressure infusion joint. The time of the ordinary transfusion is long, the piston valve 4 is in a compressed state for a long time, the elasticity of the piston valve 4 is easy to attenuate, when an external transfusion apparatus is separated from the positive pressure transfusion connector, the piston valve 4 cannot rebound to a preset position, so that the cross-shaped bump 5 arranged on the top surface of the piston valve 4 cannot protrude out of the shell 2, bacteria in the air are attached to the top surface of the piston valve 4, if the top surface of the piston valve 4 is located inside the first accommodating cavity 3, dead corners are easy to generate between the piston valve 4 and the side wall of the first accommodating cavity 3, medical staff cannot sterilize the top surface of the piston valve 4 in all directions and all angles before the secondary transfusion, bacteria breeding is caused at the dead corners, the liquid medicine enters the human body together, and medical accidents are caused. Consequently, set up the resilience force that a more elastic component 6 strengthened piston valve 4, the one end invagination that is close to base 1 at piston valve 4 forms second holding chamber 421, set up elastic component 6 in second holding chamber 421 and strengthen piston valve 4's resilience force, increase piston valve 4's resilience force through elastic component 6, ensure piston valve 4 top surface and shell 2's top surface parallel and level or the top surface that exceeds shell 2 when changing back normal condition after long-time compression state, make things convenient for medical personnel to carry out all-round disinfection to piston valve 4's top surface, can not have the disinfection dead angle and breed the bacterium, thereby avoid the medical accident.
Further, the first accommodating cavity 3 comprises an upper accommodating cavity 31 and a lower accommodating cavity 32 which are sequentially communicated from top to bottom, and the inner diameter of the lower accommodating cavity 32 is larger than that of the upper accommodating cavity 31; the piston valve 4 comprises an upper part 41 and a lower part 42 which are sequentially connected up and down, the lower part 42 is provided with the second accommodating cavity 421, and the outer diameter of the lower part 42 is larger than that of the upper part 41; the upper portion 41 is located in the upper receiving chamber 31, and the lower portion 42 is located in the lower receiving chamber 32.
Specifically, the first accommodating chamber 3 includes an upper accommodating chamber 31 and a lower accommodating chamber 32 which are sequentially connected from top to bottom, the diameter of the lower accommodating chamber 32 is larger than that of the upper accommodating chamber 31, and the upper accommodating chamber 31 and the lower accommodating chamber 32 are communicated with each other. A step for transition is provided between the lower receiving chamber 32 and the upper receiving chamber 31. In order to match the shape of the first receiving chamber 3, the piston valve 4 includes an upper portion 41 and a lower portion 42, the upper portion 41 is located in the upper receiving chamber 31, the lower portion 42 is located in the lower receiving chamber 32, and the outer diameter of the lower portion 42 is larger than that of the upper portion 41. The cross-shaped protrusion 5 is located on the top surface of the upper portion 41, the cross-shaped protrusion 5 is located at the center of the top surface of the upper portion 41, and one side of the lower portion 42 close to the base 1 is recessed to form a second receiving cavity 421. The lower portion 42 serves as the base 1 of the entire piston valve 4, and the outer diameter of the lower portion 42 is larger than that of the upper portion 41, thereby improving the mounting stability of the piston valve 4.
Preferably, the larger outer diameter of the lower portion 42 can also play a role of positive pressure, the upper top surface of the lower portion 42 abuts against the step in a normal state, when the external infusion apparatus is connected with the positive pressure infusion connector, the external infusion apparatus is attached to the cross-shaped projection 5, a liquid medicine channel is formed between the cross-shaped projection 5 and the upper top surface of the upper portion 41, and liquid medicine flows out to the first accommodating cavity 3. When the positive pressure transfusion joint is separated from an external transfusion apparatus, the piston valve 4 is reset, the upper top surface of the lower part 42 is abutted against the ladder, and the liquid medicine in the lower accommodating cavity 32 is forced to the liquid outlet hole 13, so that positive pressure is generated, blood backflow is avoided, and blockage of the remaining needle caused by thrombus formation is avoided.
Further, a transfusion groove 22 is formed on the side wall of the first accommodating cavity 3.
Specifically, seted up multichannel infusion recess 22 on the lateral wall of first holding chamber 3, infusion recess 22 is as the passageway of liquid medicine circulation when infusing, and during the infusion, piston valve 4 is compressed, and the liquid medicine flows into holding chamber 31 from the gap between the cross lug 5 of piston valve 4 earlier, and the rethread infusion recess 22 flows into holding chamber 32 down, and the rethread goes out liquid hole 13 and gets into the human body, makes things convenient for the transport of liquid medicine.
Further, the base 1 is provided with an air outlet 12 communicated with the second accommodating chamber 421.
Specifically, the base 1 is further provided with the exhaust holes 12, specifically, the two exhaust holes 12 are oppositely arranged, the exhaust holes 12 are located in the covering range of the lower portion 42, when an external infusion apparatus is connected with the positive pressure infusion connector, the lower portion 42 is compressed under the action of external force, the second accommodating cavity 421 is also compressed, the space in the second accommodating cavity 421 is reduced, redundant air in the second accommodating cavity 421 is exhausted through the exhaust holes 12, the air in the second accommodating cavity 421 is kept equal to the external air pressure, and the piston valve 4 can be smoothly compressed. When the external force disappears, the lower portion 42 rebounds, the second accommodating chamber 421 recovers, and air enters the second accommodating chamber 421 from the exhaust hole 12, so that the pressure of the air in the second accommodating chamber 421 is kept to be the same as that of the air outside, and the piston valve 4 can be smoothly reset.
Further, a female luer connector 23 is arranged on the outer wall of the shell 2, and the female luer connector 23 is used for being connected with a male luer connector on an external infusion apparatus.
Specifically, the outer wall of the shell 2 is provided with a female luer connector 23 which is used for being connected with a male luer connector on an externally-connected infusion apparatus; the female luer connector 23 is connected with the male luer connector to form a luer connector. The outer wall of the shell 2 is provided with a female luer connector 23 so as to be conveniently connected with an external infusion apparatus and meet the use requirement of a positive pressure infusion connector. The luer fitting also allows multiple mutually compatible fluids to be managed using the same tubing, thereby reducing trauma to the patient.
Example one
As shown in fig. 1 to 2, the elastic member 6 is a spring, one end of the elastic member 6 abuts against the inner top surface of the second accommodating cavity 421, and the other end of the elastic member 6 abuts against the base 1.
Specifically, when the piston valve 4 is in a compressed state for a long time, the resilience of the piston valve 4 is reduced, and the positive pressure infusion connector is usually used for a longer time and cannot be replaced easily, so the elastic member 6 is configured as a spring, one end of the spring abuts against the inner top surface of the second accommodating cavity 421, and the other end of the spring abuts against the base 1. The resilience of the piston valve 4 is enhanced by the resilience characteristic of the spring, and the piston valve 4 can be reset to a preset position when the piston valve 4 is restored to a normal state under a long-time compression state.
Further, a first guide post 422 is disposed on an inner top surface of the second accommodating cavity 421, one end of the elastic element 6 is sleeved on the first guide post 422, the base 1 is provided with a second guide post 11, the other end of the elastic element 6 is sleeved on the second guide post 11, and a gap is formed between the first guide post 422 and the second guide post 11.
Specifically, the inner top surface of the second accommodating cavity 421 is provided with a first guide post 422, one end of the spring is sleeved on the first guide post 422, the base 1 is provided with a second guide post 11, the other end of the spring is sleeved on the second guide post 11, the first guide post 422 is located right above the second guide post 11, a gap is formed between the first guide post 422 and the second guide post 11, and the gap ensures that when the spring is in a compression state, interference cannot occur between the first guide post 422 and the second guide post 11, so that the contraction stroke of the spring is ensured, and the first guide post and the second guide post play a role in limiting the spring.
Example two
As shown in fig. 3 to 4, the elastic member 6 is an S-shaped rib, and the elastic member 6 is disposed on an inner wall of the second receiving chamber 421.
In particular, the positive pressure infusion connector is generally used on an indwelling needle, which is inserted on the body of a patient for a long time, and sometimes a patient using an indwelling needle needs to be examined for physical condition by CT or nuclear magnetic resonance, in the process of CT or nuclear magnetic resonance, the existence of metal products is not allowed in the CT chamber or the nuclear magnetic resonance chamber, the elasticity of the piston valve 4 is improved by using a metal spring in the conventional positive pressure infusion joint, however, the positive pressure infusion connector with the metal spring is not allowed to enter the CT room or the nuclear magnetic resonance room, so that when the patient needs to check the physical condition by using CT or nuclear magnetic resonance, the remaining needle needs to be removed first, and a new remaining needle is inserted again after the examination is finished, which brings more pain to the patient, and the workload of medical staff is increased, more indwelling needles also need to be used, and the indwelling needles are wasted. Therefore, through being equipped with "S" type strengthening rib in first holding chamber 3 and strengthening piston valve 4 'S intensity to improve piston valve 4' S resilience force, make piston valve 4 can also reset in the state of being in the shrink for a long time, make malleation infusion connect the metal-free, can do CT or nuclear magnetic resonance along with patient and examine the health, reduce patient 'S painfulness, reduce medical personnel' S work burden, reduce the waste of keeping somewhere the needle simultaneously.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A positive pressure infusion connector, comprising:
a base (1);
the shell (2) is arranged on the base (1), a connecting hole (21) is formed in the top surface of the shell (2), and a first accommodating cavity (3) communicated with the connecting hole (21) is formed in the shell (2);
the piston valve (4) is installed in the first accommodating cavity (3), a cross-shaped lug (5) is arranged on the top surface of the piston valve (4), the cross-shaped lug (5) penetrates out of the connecting hole (21) to be located outside the shell (2), and the connecting part of the cross-shaped lug (5) and the piston valve (4) is chamfered.
2. The positive pressure infusion connector according to claim 1, wherein the top surface of the piston valve (4) is flush with or higher than the top surface of the housing (2).
3. The positive pressure infusion joint according to claim 1, wherein the piston valve (4) is provided with a second accommodating cavity (421), and an elastic member (6) for increasing the resilience of the piston valve (4) is arranged in the second accommodating cavity (421).
4. The positive pressure infusion joint according to claim 3, wherein the first accommodating cavity (3) comprises an upper accommodating cavity (31) and a lower accommodating cavity (32) which are sequentially communicated up and down, and the inner diameter of the lower accommodating cavity (32) is larger than that of the upper accommodating cavity (31); the piston valve (4) comprises an upper part (41) and a lower part (42) which are sequentially connected up and down, the lower part (42) is provided with the second accommodating cavity (421), and the outer diameter of the lower part (42) is larger than that of the upper part (41); the upper part (41) is located in the upper accommodating cavity (31), and the lower part (42) is located in the lower accommodating cavity (32).
5. The positive pressure infusion connector according to claim 3, wherein the elastic member (6) is a spring, one end of the elastic member (6) abuts against the inner top surface of the second accommodating cavity (421), and the other end of the elastic member (6) abuts against the base (1).
6. The positive pressure infusion joint according to claim 5, wherein a first guide post (422) is disposed on an inner top surface of the second receiving cavity (421), one end of the elastic member (6) is sleeved on the first guide post (422), a second guide post (11) is disposed on the base (1), the other end of the elastic member (6) is sleeved on the second guide post (11), and a gap is formed between the first guide post (422) and the second guide post (11).
7. The positive pressure infusion connector according to claim 3, wherein the elastic member (6) is an S-shaped reinforcing rib, and the elastic member (6) is disposed on the inner wall of the second receiving cavity (421).
8. The positive pressure infusion connector according to claim 1, wherein the side wall of the first accommodating cavity (3) is provided with an infusion groove (22).
9. The positive pressure infusion joint according to claim 3, wherein the base (1) is provided with an exhaust hole (12) communicated with the second accommodating cavity (421).
10. The positive pressure infusion connector according to claim 1, wherein the outer wall of the housing (2) is provided with a female luer connector (23), and the female luer connector (23) is used for connecting with a male luer connector on an externally connected infusion device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123105616.XU CN216855405U (en) | 2021-12-03 | 2021-12-03 | Positive pressure infusion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123105616.XU CN216855405U (en) | 2021-12-03 | 2021-12-03 | Positive pressure infusion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216855405U true CN216855405U (en) | 2022-07-01 |
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ID=82147275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123105616.XU Active CN216855405U (en) | 2021-12-03 | 2021-12-03 | Positive pressure infusion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216855405U (en) |
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2021
- 2021-12-03 CN CN202123105616.XU patent/CN216855405U/en active Active
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