CN210159005U - Positive pressure elastic valve and needleless infusion joint - Google Patents
Positive pressure elastic valve and needleless infusion joint Download PDFInfo
- Publication number
- CN210159005U CN210159005U CN201822132535.0U CN201822132535U CN210159005U CN 210159005 U CN210159005 U CN 210159005U CN 201822132535 U CN201822132535 U CN 201822132535U CN 210159005 U CN210159005 U CN 210159005U
- Authority
- CN
- China
- Prior art keywords
- upper sealing
- sealing part
- positive pressure
- cavity
- lower base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model belongs to the field of infusion apparatus, in particular to a positive pressure elastic valve, which comprises an upper sealing part and a lower base part, wherein the lower base part is in a cylinder shape with a downward opening, a cavity is arranged in the upper sealing part, and the cavity is communicated with the inner cavity of the lower base part and deviates from the central axis of the upper sealing part; when external force acts on the top end of the upper sealing part from the upper part, the upper sealing part is folded and deformed towards one side; the outer diameter of the upper sealing part is smaller than that of the lower base part. When the connector is connected to an external infusion connector for multiple times, the positive pressure elastic valve is consistent in folding deformation after being stressed, and is higher in stability during clinical use and not prone to liquid leakage or rebound. Simultaneously the utility model also provides an use needleless infusion of this malleation elasticity valve to connect, inserts outside infusion many times and connects the back with connecting, still can keep good leakproofness, is simultaneously can producing the malleation with the in-process that outside infusion connects the separation with connecting with needleless infusion, prevents that blood from flowing back in the pipe chamber.
Description
Technical Field
The utility model relates to a malleation elasticity valve and have needleless infusion joint of this malleation elasticity valve belongs to infusion apparatus field.
Background
At present, the needle-free infusion connector is widely applied to clinical infusion, and the needle can be prevented from being inserted again when the needle is used for secondary infusion through the needle-free infusion connector, so that repeated puncture of the infusion needle is avoided, pain of a patient is relieved, and the probability that medical staff are punctured by the needle is avoided.
However, some needle-free infusion connectors sold in the market have the problem that the valve body cannot rebound to the original position after single or multiple uses due to the unreasonable design of the valve body material or the valve body structure, so that on one hand, the sealing performance of the needle-free infusion connector is influenced to cause liquid leakage, and the needle-free infusion connector cannot be reused for multiple times; on the other hand, when the external infusion connector is separated from the needleless infusion connector, the problem of insufficient positive pressure is easily caused, blood flows back to the catheter cavity, and the catheter is blocked due to blood coagulation in the catheter cavity, so that infusion cannot be performed.
In addition, some needleless infusion connectors have a valve body with a foldable lower base body and an unfoldable upper sealing part, the top of the valve body needs to be designed to be inclined or a groove in order to form a liquid medicine passage, so that the needleless infusion connector is inconvenient to wipe and cannot be thoroughly sterilized, and foreign microorganisms or dust are easily accumulated in the groove, so that the probability of complications is increased. Some valve body tops that adopt are the flat-top, but its mode that realizes the liquid route is external inner groovy for upper seal portion design, can increase needleless infusion joint internal clearance like this, lead to the liquid medicine to persist the increase and extravagant to the notch leads to the probability increase of edges and corners gathering microorganism, leads to the probability increase that the complication takes place.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome not enough among the prior art, provide a malleation elasticity valve and have needleless infusion joint of this malleation elasticity valve, guarantee that needleless infusion joint still can keep good leakproofness when the external infusion connects for a lot of access, can produce the malleation when connecting for external infusion and needleless infusion joint separation simultaneously, prevent that blood from flowing back in the pipe chamber, stability is high during clinical use, difficult appearance is liquid or not rebound phenomenon.
The positive pressure elastic valve of the utility model is made of high molecular elastic material, and comprises an upper sealing part and a lower base part, wherein the lower base part is cylindrical with a downward opening, a cavity is arranged in the upper sealing part, and the cavity is communicated with the inner cavity of the lower base part and deviates from the central axis of the upper sealing part; when external force acts on the top end of the upper sealing part from the upper part, the upper sealing part is folded and deformed towards one side; the outer diameter of the upper sealing part is smaller than that of the lower base part. When in use, the high molecular elastic material can adopt silica gel, synthetic rubber, natural rubber, thermoplastic elastomer and the like.
The utility model discloses mainly be applied to among the needleless infusion connects, when clinical use, outside infusion is with connecting and needleless infusion articulate, and apply decurrent pressure to last sealing, because of the skew its axis of the inside cavity of last sealing, consequently apply the folding of sealing on the pressure of its upper portion can reach the wall of keeping away from the cavity and realize going up the sealing, this pressure can pass on inside hollow lower basal portion simultaneously, the folding is also realized to the basal portion under the messenger, and then make the position of going up the sealing move down, make the needleless infusion connect and be in the open mode, thereby infuse. After the infusion is finished, the external infusion connector is unscrewed from the needle-free infusion connector, the external infusion connector and the needle-free infusion connector are separated, the pressure acting on the upper sealing part disappears, and the material of the positive pressure elastic valve has resilience, so that the whole structure can realize complete resilience, the needle-free infusion connector is in a closed state, the needle-free infusion connector is restored to the previous sealing state again, and meanwhile, the resilience through the positive pressure elastic valve can generate required positive pressure, so that blood is prevented from flowing back into a catheter cavity, and the health problem of a patient caused by blood coagulation in the inner cavity of the catheter is avoided. When the infusion connector is used again, the top end of the upper sealing part is disinfected only by using a disinfectant, and then the external infusion connector is connected with the needleless infusion connector according to the conventional operation, so that the secondary infusion can be realized.
In addition, because the cavity in the upper sealing part of the positive pressure elastic valve deviates from the center, the folding deformation positions of the upper sealing part are consistent after the positive pressure elastic valve is stressed, and thus, when the external infusion connector is accessed for multiple times, the deformation is unique, and the stability characteristic is achieved; and after the force disappears, the positive pressure elastic valve returns to the initial state, and the outer wall of the upper sealing part has better smoothness, so that the clearance between the positive pressure elastic valve and the needle-free infusion connector is smaller, and the residue of medicine or harmful substances in the inner cavity of the needle-free infusion connector can be greatly reduced when nutrient solution or precious medicine and the like are infused, thereby reducing the occurrence of complications.
Preferably, the top periphery of the upper sealing part protrudes to form a sealing ring to play a sealing role.
Preferably, the cavity in the upper sealing portion gradually deviates from the central axis direction of the upper sealing portion and the cross section of the cavity is gradually increased from top to bottom, so that the wall thickness of the upper sealing portion is gradually reduced from top to bottom, and when the flat top of the positive pressure elastic valve is acted by an external force, the flat top is more easily folded and deformed towards one side to form a liquid medicine channel.
Preferably, the top of the upper sealing portion is flat-topped, i.e., the top of the upper sealing portion is a flat surface. When the external infusion joint is connected with the needleless infusion joint, a loading point is easier to form on a plane, and the external infusion joint can still keep contact with the upper sealing part after the upper sealing part is folded, namely the external infusion joint can still apply pressure to the upper sealing part, so that the practical use effect is ensured; at the same time, the top surface is easily wiped, helping to achieve thorough sterilization before reuse.
Further preferably, one or more built-in inner grooves are formed on the inner wall of the lower base part. When a built-in inner groove is arranged, the arrangement direction of the built-in inner groove is the same as that of the cavity in the upper sealing part; when a plurality of built-in inner grooves are arranged, the setting direction of the built-in inner groove positioned at the uppermost part is the same as the setting direction of the cavity in the upper sealing part, and the setting directions of the two built-in inner grooves which are adjacent up and down are opposite. Through the design, on one hand, the wall thickness of the inner groove on the lower base part is thinner than that of other parts, and the thin wall part is more easily folded and deformed than other positions, so that when the external infusion connector is accessed for multiple times, the folding and deforming position of the lower base part is unique, the stability is higher during clinical use, and the phenomenon of liquid leakage or rebound is not easy to occur; on the other hand, the outer wall of the lower base part has better smoothness, so that after the force disappears, the gap between the lower base part and the needleless infusion joint is smaller, and the medicine or harmful substances are less remained.
In practical application, one or more external inner grooves may be formed on the outer wall of the lower base. When an external inner groove is arranged, the arrangement direction of the external inner groove is the same as that of the cavity in the upper sealing part; when a plurality of external inner grooves are arranged, the arrangement direction of the external inner groove positioned at the top is the same as the arrangement direction of the cavity in the upper sealing part, and the arrangement directions of the two adjacent external inner grooves are opposite. Wherein, the effect of external inner groovy is the same with the effect of above-mentioned built-in inner groovy, can enough guarantee that the folding deformation position of basal portion is only down, can reduce medicine or harmful substance's residue again.
Needleless infusion connect including connecting the shell and being located the valve body that connects the shell, wherein, the valve body adopts above-mentioned malleation elasticity valve, the last sealing, the lower basal portion of malleation elasticity valve are located last interface, the cavity of resorption in connecting the shell respectively, malleation elasticity valve keeps sealed through its upper sealing and last interface, leaves first space between lower basal portion and the cavity of resorption, air or liquid can pass in and out from needleless infusion connects through first space.
Preferably, shoulder transition is adopted between an upper connector and a lower cavity in the connector shell, a second gap is reserved between an upper sealing part of the positive pressure elastic valve and the shoulder, so that when the external infusion connector is connected, the upper sealing part of the positive pressure elastic valve is compressed and then has enough space for stable folding, and after the external infusion connector is withdrawn, the upper sealing part can smoothly rebound, and the transition effect is realized when the external infusion connector is deformed under stress.
Compared with the prior art, the utility model beneficial effect who has is:
1. the positive pressure elastic valve of the utility model has the advantages that the folding deformation generated after the stress is consistent, thus when the external transfusion joint is accessed for a plurality of times, the deformation is unique, the stability is higher during clinical use, and the phenomenon of liquid non-flowing or non-rebounding is not easy to occur;
2. after the needle-free infusion connector using the positive pressure elastic valve is connected to an external infusion connector for multiple times, good sealing performance can still be kept, and meanwhile, positive pressure can be generated in the process of separating the external infusion connector from the needle-free infusion connector, so that blood is prevented from flowing back into a catheter cavity;
3. because the outer walls of the upper sealing part and the lower base part of the positive pressure elastic valve have better smoothness, when nutrient solution or precious medicaments and the like are infused, the medicaments can be fully infused, and the residual quantity of the medicaments or harmful substances in the inner cavity of the needle-free infusion joint is lower, thereby reducing the occurrence of complications.
Drawings
FIG. 1 is a schematic structural view of a positive pressure elastic valve according to the present invention;
FIG. 2 is a second schematic structural view of the positive pressure elastic valve of the present invention;
FIG. 3 is a schematic structural view of a needleless infusion connector of the present invention;
fig. 4 is a schematic view showing a structure of the connector for external infusion connected to the needleless infusion connector shown in fig. 3.
In the figure: 1. an upper sealing part; 2. a cavity; 3. a lower base; 4. an inner groove is arranged inside; 5. an external inner groove; 6. a connector housing; 7. a first void; 8. a shoulder portion; 9. a second void; 10. an external infusion connector; 11. a positive pressure elastomeric valve; 12. a seal ring; 13. a third void.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings:
the first embodiment is as follows:
as shown in fig. 1, the structure of the positive pressure elastic valve comprises an upper sealing part 1 and a lower base part 3, and the whole body is integrally formed by silica gel. The lower base part 3 of the positive pressure elastic valve is in a cylinder shape with a downward opening, the upper sealing part 1 is in a cylinder shape, and the central axes of the upper sealing part and the lower sealing part are the same; the top of the upper sealing part 1 is flat-topped, and the periphery of the top thereof protrudes to form a sealing ring 12; the upper sealing part is internally provided with a cavity 2, and the cavity 2 is communicated with the inner cavity of the lower base part 3 and deviates from the central axis of the upper sealing part 1; from top to bottom, the cavity 2 in the upper sealing part 1 gradually deviates to the central axis direction of the upper sealing part 1, and the section of the cavity 2 is gradually increased; the outer diameter of the upper sealing part 1 is smaller than that of the lower base part 3. Be equipped with 2 built-in inner groovings 4 on 3 inner walls of basal portion down, the built-in inner groovings 4 who is located the top sets up the direction the same with the setting direction of cavity 2 in the upper seal portion 1 (namely built-in inner groovings 4 and cavity 2 are located the homonymy of axis), and the built-in inner groovings 4 who is located the below sets up the direction opposite with the built-in inner groovings 4 who is located the top.
Example two:
as shown in fig. 2, another positive pressure elastic valve has a structure substantially the same as that of the first embodiment, except that: not set up built-in inner groovy 4 on 3 inner walls of basal portion down, but be equipped with 2 external inner groovy 5 on 3 outer walls of basal portion down, the direction that sets up of the external inner groovy 5 that is located the top is the same with the direction that sets up of 1 interior cavity 2 of last sealing (namely external inner groovy 5 is located the homonymy of axis with cavity 2), and the direction that sets up of the external inner groovy 5 that is located the below is opposite with the direction that sets up of the external inner groovy 5 that is located the top.
Example three:
as shown in fig. 3, in a needleless infusion connector having the positive pressure elastic valve according to the first embodiment, the positive pressure elastic valve is located in the connector housing 6 of the needleless infusion connector, the upper sealing part 1 and the lower base part 3 of the positive pressure elastic valve are respectively located in the upper port and the lower cavity in the connector housing 6, and a first gap 7 is left between the lower base part 3 and the lower cavity. In this embodiment, a shoulder 8 is used for transition between the upper port and the lower chamber in the joint housing 6, and a second gap 9 is left between the upper sealing part 1 and the shoulder 8 of the positive pressure elastic valve. In the assembling process of the positive pressure elastic valve and the joint shell 6, the positive pressure elastic valve forms a first seal through interference fit of the sealing ring 12 on the upper sealing part 1 of the positive pressure elastic valve and an upper interface in the joint shell 6, meanwhile, the positive pressure elastic valve has certain prepressing when being installed in the needleless infusion joint, the lower base part 3 forms a second seal through interference fit with the shoulder part 8 of the joint shell 6, and the sealing effect can be achieved under the effect of the two seals to prevent the leakage of liquid medicine.
The working principle and process of the embodiment are as follows:
in clinical use, the external infusion connector 10 is connected with a needle-free infusion connector (the state when the external infusion connector and the needle-free infusion connector are connected is shown in fig. 4), downward pressure is applied to the positive pressure elastic valve 11, the cavity 2 in the upper sealing part 1 deviates from the central axis, so that the upper sealing part 1 can deviate to one side to fold and deform, meanwhile, the pressure applied to the upper part can be transmitted to the lower base part 3 which is hollow in the inner part, the lower base part 3 can also fold along the position of the built-in inner groove 4, and further the position of the upper sealing part 1 moves downwards, and the space at the lower part of the inner cavity of the connector shell 6 is large, so that dislocation is formed between the upper sealing part 1 and the external infusion connector 10, an infusion channel is opened, and meanwhile, a third gap 13 is formed between the upper sealing part 1 and the.
After the transfusion is finished, the external transfusion connector 10 is unscrewed from the connector shell 6 of the needleless transfusion connector, the two are separated, the pressure acting on the upper sealing part 1 is eliminated, the material of the positive pressure elastic valve has resilience, therefore, the whole structure can realize complete rebound, the needle-free infusion joint is in a closed state and returns to the previous sealing state again, meanwhile, after the positive pressure elastic valve 11 rebounds, the third gap 13 disappears and recovers to the previous first gap 7 and second gap 9, because the volume of the third gap 13 formed after the positive pressure elastic valve is compressed is larger than the sum of the volumes of the first gap 7 and the second gap 9, thereby causing a greater pressure to build up in the liquid in the space between the positive pressure elastomeric valve 11 and the fitting housing 6, thereby creating the desired positive pressure to prevent blood from flowing back into the catheter lumen and avoiding patient health problems due to clotting of blood within the catheter lumen.
When the infusion connector is used again, the top end of the upper sealing part 1 only needs to be disinfected by using a disinfectant, and then the external infusion connector is connected with the needleless infusion connector according to the conventional operation, so that the secondary infusion can be realized.
The positive pressure elastic valve described in this embodiment, because of the cavity 2 in the upper sealing portion 1 is off-center, therefore the folding deformation position of the upper sealing portion 1 will keep unanimous after the atress, simultaneously because the wall thickness of the inner groovy department on the lower basal portion 3 will be thinner than other places, consequently, the folding deformation position of the lower basal portion 3 also will keep unanimous after the atress, like this, when the external infusion of a lot of access is with connecting, the folding deformation position of upper sealing portion 1 and lower basal portion 3 is all unique in the whole positive pressure elastic valve, stability is higher when clinical use, difficult appearance liquid or the phenomenon of not rebounding.
Moreover, the upper sealing part 1 and the lower base part 3 have better smoothness on the outer wall, so when nutrient solution or precious medicine and the like are infused, the medicine can be fully infused, the residual quantity of the medicine or harmful substances in the inner cavity of the needle-free infusion joint is much lower than that of the conventional needle-free infusion joint, and the occurrence of complications is reduced.
In addition, the top of the upper sealing part 1 of the positive pressure elastic valve in the embodiment is flat, so that when the external infusion connector is connected with the needleless infusion connector, a loading point is more easily formed on the plane of the top, and the external infusion connector can still be kept in contact with the upper sealing part 1 after the upper sealing part 1 is folded, i.e. the external infusion connector can still apply pressure to the upper sealing part 1, thereby ensuring the actual using effect; meanwhile, the top plane is easy to wipe, so that thorough disinfection is facilitated before reuse, the problem that the traditional needleless infusion connector is not thoroughly disinfected is solved, and the risk of infection of a patient by bacteria and the like is effectively reduced.
Claims (10)
1. A positive pressure elastomeric valve characterized by: the sealing device is made of a high polymer elastic material and comprises an upper sealing part (1) and a lower base part (3), wherein the lower base part (3) is in a cylindrical shape with a downward opening, a cavity (2) is arranged in the upper sealing part (1), and the cavity (2) is communicated with the inner cavity of the lower base part (3) and deviates from the central axis of the upper sealing part (1); when external force acts on the top end of the upper sealing part (1) from the upper part, the upper sealing part (1) is folded and deformed towards one side; the outer diameter of the upper sealing part (1) is smaller than that of the lower base part (3).
2. The positive pressure elastomeric valve of claim 1, wherein: the top periphery of the upper sealing part (1) protrudes to form a sealing ring (12).
3. The positive pressure elastomeric valve of claim 1, wherein: from top to bottom, the cavity (2) in the upper sealing part (1) gradually deviates to the central axis direction of the upper sealing part (1) and the section of the cavity (2) is gradually increased.
4. The positive pressure elastomeric valve according to any one of claims 1 to 3, wherein: the top of the upper sealing part (1) is flat-topped.
5. The positive pressure elastomeric valve according to any one of claims 1 to 3, wherein: a built-in inner groove (4) is arranged on the inner wall of the lower base part (3), and the arrangement direction of the built-in inner groove (4) is the same as that of the cavity (2) in the upper sealing part (1).
6. The positive pressure elastomeric valve according to any one of claims 1 to 3, wherein: the inner wall of the lower base part (3) is provided with a plurality of built-in inner grooves (4), the setting direction of the built-in inner groove (4) positioned at the uppermost part is the same as the setting direction of the cavity (2) in the upper sealing part (1), and the setting directions of the two built-in inner grooves (4) adjacent to each other up and down are opposite.
7. The positive pressure elastomeric valve according to any one of claims 1 to 3, wherein: an external inner groove (5) is formed in the outer wall of the lower base portion (3), and the arrangement direction of the external inner groove (5) is the same as the arrangement direction of the inner cavity (2) of the upper sealing portion (1).
8. The positive pressure elastomeric valve according to any one of claims 1 to 3, wherein: be equipped with several external inner groovy (5) on lower basal portion (3) outer wall, the direction that sets up of the external inner groovy (5) that is located the top is the same with the direction that sets up of cavity (2) in last sealing (1), and the direction that sets up of two adjacent external inner groovy (5) is opposite from top to bottom.
9. A needleless infusion joint comprises a joint shell (6) and a valve body positioned in the joint shell (6), and is characterized in that: the positive pressure elastic valve is adopted as the valve body, an upper sealing part (1) and a lower base part (3) of the positive pressure elastic valve are respectively positioned in an upper connector and a lower connector in a connector shell (6), and the positive pressure elastic valve is matched with the upper connector through the upper sealing part (1) to form sealing.
10. The needle-free infusion connector of claim 9, wherein: the upper interface and the lower cavity in the joint shell (6) are transited by adopting a shoulder (8), and a second gap (9) is reserved between the upper sealing part (1) and the shoulder (8) of the positive pressure elastic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822132535.0U CN210159005U (en) | 2018-12-18 | 2018-12-18 | Positive pressure elastic valve and needleless infusion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822132535.0U CN210159005U (en) | 2018-12-18 | 2018-12-18 | Positive pressure elastic valve and needleless infusion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210159005U true CN210159005U (en) | 2020-03-20 |
Family
ID=69787091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822132535.0U Active CN210159005U (en) | 2018-12-18 | 2018-12-18 | Positive pressure elastic valve and needleless infusion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210159005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498890A (en) * | 2018-12-18 | 2019-03-22 | 山东新华安得医疗用品有限公司 | Positive pressure feather valve and no-needle transfusion connector |
-
2018
- 2018-12-18 CN CN201822132535.0U patent/CN210159005U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498890A (en) * | 2018-12-18 | 2019-03-22 | 山东新华安得医疗用品有限公司 | Positive pressure feather valve and no-needle transfusion connector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8002755B2 (en) | Anti-drawback medical valve and method | |
| US8100869B2 (en) | Medical valve with expandable member | |
| KR101806777B1 (en) | New needleless access connector and method of use | |
| US20150157800A1 (en) | Needleless connector module | |
| US20150157799A1 (en) | Needleless connector module | |
| CN103212154A (en) | One-way positive valve | |
| CN210159005U (en) | Positive pressure elastic valve and needleless infusion joint | |
| CN201088780Y (en) | Unidirectional positive pressure valve | |
| CN104815365A (en) | Medical needleless positive pressure joint | |
| CN109498890A (en) | Positive pressure feather valve and no-needle transfusion connector | |
| CN202459844U (en) | One-way positive valve | |
| CN108355225A (en) | A kind of ductus venosus and preparation method thereof with the dual anti-valve that backflows | |
| CN204563304U (en) | Be applicable to the single use disinfectant cap of Needleless barotropic joint | |
| CN216571142U (en) | Semi-automatic external gastrointestinal shunt device | |
| CN201179271Y (en) | One-way positive pressure valve | |
| CN111956949A (en) | Continuous positive pressure infusion joint | |
| CN202859802U (en) | Disposable safe infusion apparatus | |
| CN219208654U (en) | Assembled intravenous catheter | |
| CN219921704U (en) | Novel infusion connector | |
| CN212038597U (en) | Needleless positive pressure joint | |
| CN206325063U (en) | Medical Needleless barotropic joint | |
| CN210159009U (en) | Positive pressure needle-free infusion joint | |
| CN201996980U (en) | Positive-pressure one-way valve | |
| CN215309098U (en) | Needleless medicine adding joint | |
| CN213667258U (en) | Anti-return infusion pump extension tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 255086 No. 999, Zunxian Road, high tech Zone, Zibo City, Shandong Province Patentee after: Shandong ande medical supplies Co.,Ltd. Address before: No.77, North Road, development zone, high tech Zone, Zibo City, Shandong Province Patentee before: SHINVA ANDE HEALTHCARE APPARATUS Co.,Ltd. |
|
| CP03 | Change of name, title or address |