CN214762785U - Venous cannula for cardiac surgery - Google Patents
Venous cannula for cardiac surgery Download PDFInfo
- Publication number
- CN214762785U CN214762785U CN202120002263.1U CN202120002263U CN214762785U CN 214762785 U CN214762785 U CN 214762785U CN 202120002263 U CN202120002263 U CN 202120002263U CN 214762785 U CN214762785 U CN 214762785U
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- block
- fixedly connected
- blocks
- arc
- cannula
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- 238000007675 cardiac surgery Methods 0.000 title claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 38
- 210000003462 vein Anatomy 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000002439 hemostatic effect Effects 0.000 claims description 7
- 230000004224 protection Effects 0.000 claims description 7
- 230000023597 hemostasis Effects 0.000 claims description 2
- 230000000747 cardiac effect Effects 0.000 claims 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 16
- 239000007788 liquid Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000001356 surgical procedure Methods 0.000 abstract description 6
- 238000002627 tracheal intubation Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 210000000038 chest Anatomy 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 2
- 208000002330 Congenital Heart Defects Diseases 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 208000028831 congenital heart disease Diseases 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 208000019622 heart disease Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000025584 Pericardial disease Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 201000008982 Thoracic Aortic Aneurysm Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229940030225 antihemorrhagics Drugs 0.000 description 1
- 208000007474 aortic aneurysm Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000029078 coronary artery disease Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000003457 familial thoracic 1 aortic aneurysm Diseases 0.000 description 1
- 230000000025 haemostatic effect Effects 0.000 description 1
- 208000024348 heart neoplasm Diseases 0.000 description 1
- 208000018578 heart valve disease Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model belongs to the technical field of vein intubation for surgery, in particular to a vein intubation for cardiac surgery, which comprises an intubation main body, a positioning block and a buffer cavity, wherein the two sides of the intubation main body are fixedly connected with fixed blocks, the other side of the fixed block is fixedly connected with an arc tube, the middle periphery of the arc tube is movably connected with the positioning block, the other side of the inside of the positioning block is movably connected with a linkage block, the two ends of the linkage block are fixedly connected with the arc block, the other side of the linkage block is fixedly connected with a rotating block, the rotating block can change the tightness degree of the positioning block and the arc tube after a medical worker rotates the rotating block, so that the medical worker can correspondingly move the positioning block according to the position to be treated by the patient, a protective sleeve can protect the wound of the patient in the treatment process by the protective sleeve, and simultaneously, the discomfort generated by the patient is reduced when the medical worker injects a liquid medicine, therefore, the protective effect of the cannula main body can be indirectly improved, and the cannula has wide development prospect in the future.
Description
Technical Field
The utility model relates to a vein cannula technical field for the surgery specifically is a vein cannula for cardiac surgery.
Background
Cardiac surgery is a younger subject in the branch of surgery, primarily for the treatment of heart disease by surgery, such as heart bypass surgery, congenital heart disease surgery, valve replacement, etc. The common heart diseases to be treated are: congenital heart disease, valvular heart disease, coronary heart disease, thoracic aortic aneurysm, pericardial disease, heart tumor, etc.
Present venous cannula for cardiac surgery can't let medical personnel fix a position after the position control that the intubate was located according to patient's wound position to make the intubate produce easily and rock, and then lead to medical personnel's use convenient inadequately, and can't protect patient's wound, so that the patient increases patient's uncomfortable sense easily when accepting the treatment as for the patient, and then lead to medical personnel to carry out the process of treatment smooth and easy inadequately to the patient.
Therefore, how to design a venous cannula for cardiac surgery becomes a problem to be solved currently.
Disclosure of Invention
An object of the utility model is to provide a cardiac surgery is with vein intubate to provide and can't let medical personnel fix a position and can't carry out the weak point of protecting patient's wound according to patient's wound position after the position control that the intubate was located in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a vein cannula for cardiac surgery, includes intubate main part, locating piece and cushion chamber, the both sides fixedly connected with fixed block of intubate main part, the opposite side fixedly connected with arc tube of fixed block, the peripheral swing joint in centre of arc tube has the locating piece, the inside opposite side swing joint of locating piece has linkage block, the both ends fixedly connected with arc block of linkage block, the opposite side fixedly connected with turning block of linkage block, the centre through connection of locating piece has the hollow tube, the top fixedly connected with cushion chamber of hollow tube, the bottom fixedly connected with protective sheath of hollow tube, the bottom fixedly connected with syringe needle of protective sheath, the peripheral embedding of protective sheath is connected with hemostatic layer, the middle top embedding of intubate main part is connected with the pipe.
Preferably, one side of the fixing block is fixedly connected with a connecting belt.
Preferably, the bottom of the positioning block is connected with a gasket in an embedded mode, the middle of the gasket is connected with absorbent cotton in an embedded mode, and the periphery of the gasket is connected with a retainer in an embedded mode.
Preferably, the top end inner side of the hollow tube is embedded and connected with a sealing layer.
Preferably, the fixed blocks on two sides of the cannula main body, the arc-shaped tube on the other side of the fixed blocks, the positioning block on the periphery of the middle of the arc-shaped tube, the linkage block on the other side of the inside of the positioning block, the arc-shaped blocks at two ends of the linkage block and the rotating block on the other side of the linkage block form a positioning mechanism together.
Preferably, the hollow tube in the middle of the positioning block, the buffer cavity at the top of the hollow tube, the protective sleeve at the bottom of the hollow tube, the needle head at the bottom of the protective sleeve and the hemostatic layer on the periphery of the protective sleeve form a protection mechanism together.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this kind of cardiac surgery is with vein intubate is provided with positioning mechanism in the intubate main part, can let medical personnel carry out corresponding removal with the locating piece according to the position of the required treatment of patient to can rotate back at medical personnel to the turning block and fix locating piece and arc tube, with this effect of fixing a position the locating piece that reaches.
2. This kind of cardiac surgery is with vein intubate is provided with protection mechanism in through the intubate main part, can protect patient's wound by the in-process that the protective sheath accepted the treatment to the patient, reduces uncomfortable sense that the patient produced when medical personnel pours into the liquid medicine into simultaneously to this can indirectly improve the safeguard effect of intubate main part.
Drawings
Fig. 1 is a schematic diagram of the structure of the cannula main body of the present invention;
fig. 2 is a schematic side sectional view of the cannula body of the present invention;
fig. 3 is a schematic cross-sectional side view of another side of the cannula body of the present invention;
fig. 4 is a schematic top view of a gasket according to the present invention.
In the figure: 1. a cannula body; 2. a fixed block; 3. a connecting belt; 4. an arc tube; 5. positioning blocks; 6. rotating the block; 7. a gasket; 701. a retainer; 702. cotton wool; 8. a buffer chamber; 9. a hollow tube; 10. a sealing layer; 11. a conduit; 12. a protective sleeve; 13. a needle head; 14. a haemostatic layer; 15. a linkage block; 16. an arc-shaped block.
Detailed Description
The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defined as "first", "second" may explicitly or implicitly include one or more of such features, in the description of the invention "plurality" means two or more unless explicitly and specifically defined otherwise,
in a first embodiment, please refer to fig. 1-4, the present invention provides a technical solution: the utility model provides a cardiac surgery is with vein intubate, including intubate main part 1, locating piece 5 and cushion chamber 8, intubate main part 1's both sides fixedly connected with fixed block 2, opposite side fixedly connected with arc 4 of fixed block 2, the peripheral swing joint in the middle of arc 4 has locating piece 5, the inside opposite side swing joint of locating piece 5 has linkage piece 15, the both ends fixedly connected with arc 16 of linkage piece 15, the opposite side fixedly connected with turning block 6 of linkage piece 15, the centre through connection of locating piece 5 has hollow tube 9, the top fixedly connected with cushion chamber 8 of hollow tube 9, the bottom fixedly connected with protective sheath 12 of hollow tube 9, the bottom fixedly connected with syringe needle 13 of protective sheath 12, the peripheral embedding of protective sheath 12 is connected with hemostasis layer 14, the middle top embedding of intubate main part 1 is connected with pipe 11.
Preferably, one side fixedly connected with connecting band 3 of fixed block 2, connecting band 3 sets up in one side of fixed block 2, and the opposite side of opposite side fixed block 2 also is provided with assorted connecting band 3 with it, then need be fixed in patient's heart position with intubate main part 1 at medical personnel, can let medical personnel manually place fixed block 2 in patient's chest both sides, then pass connecting band 3 from patient's back, and link to each other two connecting bands 3 with the mode that the magic was pasted, reach with this and carry out fixed effect with fixed block 2 and intubate main part 1, make things convenient for medical personnel to use.
Preferably, the bottom embedding of locating piece 5 is connected with gasket 7, the middle embedding of gasket 7 is connected with absorbent cotton 702, the peripheral embedding of gasket 7 is connected with protective shroud 701, gasket 7 sets up in the bottom of locating piece 5, and constitute jointly by absorbent cotton 702 in the middle of the gasket 7 and the peripheral protective shroud 701 of gasket 7, then when medical personnel used intubate main part 1 to treat the patient, can directly contact with the patient by gasket 7, can protect between patient's wound and syringe needle 13 simultaneously, then spout the antiseptic solution in absorbent cotton 702 by medical personnel, make absorbent cotton 702 can be isolated with external bacterium and patient's wound, cross infection appears in order to avoid the patient from this, gasket 7 links to each other with locating piece 5 with viscidity simultaneously, can convenience of customers change gasket 7.
Preferably, a sealing layer 10 is embedded and connected to the inner side of the top end of the hollow tube 9, the sealing layer 10 is arranged on the inner side of the top end of the hollow tube 9 and is made of a silica gel material, the sealing layer 10 can be used for a medical staff to insert the catheter 11 into the sealing layer 10 and then penetrate through the sealing layer 10, so that the liquid medicine can penetrate through the sealing layer, but the liquid medicine outside the catheter 11 can be sealed by the sealing layer 10, and meanwhile, the liquid medicine inside the hollow tube 9 can be prevented from flowing back under the action of the sealing layer 10.
Preferably, the fixed blocks 2 at two sides of the cannula main body 1, the arc tube 4 at the other side of the fixed block 2, the positioning blocks 5 at the periphery of the middle of the arc tube 4, the linkage block 15 at the other side inside the positioning block 5, the arc blocks 16 at two ends of the linkage block 15 and the rotation block 6 at the other side of the linkage block 15 jointly form a positioning mechanism, the fixed blocks 2 are arranged at two sides of the cannula main body 1 and are provided with two, then the two fixed blocks 2 are connected by the arc tube 4 at the other side of the fixed block 2, the radian of the arc tube 4 can be close to the radian of the chest of a human body, the positioning block 5 is arranged at the periphery of the middle of the arc tube 4, the other side inside of the positioning block 5 is movably connected with the linkage block 15, so that medical personnel can manually rotate the rotation block 6 at the other side of the linkage block 15, and the arc blocks 16 at two ends of the linkage block 15 can be driven by the linkage block 15 to rotate by taking the linkage block 15 as a circle center, since the distance between the edge of the arc block 16 and the linkage block 15 is gradually increased, and further when the arc block 16 rotates and the distance between the edge of the arc block 16 and the linkage block 15 is equal to the distance between the arc tube 4 and the linkage block 15, the arc block 16 can extrude the arc tube 4, so that the positioning block 5 and the arc tube 4 can be fixed, the positioning block 5 cannot move on the periphery of the arc tube 4, the positioning block 5 can be positioned, and then medical care personnel can fix the hollow tube 9 by using the positioning block 5, so that the positioning mechanism is arranged in the cannula main body 1, medical care personnel can correspondingly move the positioning block 5 according to the position to be treated by a patient, and can fix the positioning block 5 and the arc tube 4 after the medical care personnel rotate the rotation block 6, thereby achieving the effect of positioning the positioning block 5.
Preferably, the hollow tube 9 in the middle of the positioning block 5, the buffer cavity 8 at the top of the hollow tube 9, the protective sleeve 12 at the bottom of the hollow tube 9, the needle 13 at the bottom of the protective sleeve 12 and the hemostatic layer 14 on the periphery of the protective sleeve 12 jointly form a protection mechanism, the hollow tube 9 is arranged in the middle of the positioning block 5, the buffer cavity 8 is arranged at the top of the hollow tube 9, when medical personnel inject liquid medicine from the hollow tube 9, the flow rate of the liquid medicine can be buffered by the buffer cavity 8, and then the liquid medicine can continuously flow into the body of a patient, meanwhile, because the protective sleeve 12 is arranged at the bottom of the hollow tube 9 and the bottom of the protective sleeve 12 is connected with the needle 13, after the needle 13 is inserted into the body of the patient, the protective sleeve 12 is arranged between the wound of the patient and the positioning block 5, and then the hemostatic layer 14 on the periphery of the protective sleeve 12 is attached to the wound of the patient and the skin of the wound, so that the wound of the patient can be protected in the process of receiving treatment, meanwhile, the cannula main body 1 can be a remaining needle, only medical staff need to replace the catheter 11, then when the medical staff extracts the needle head 13, the wound of a patient can be prevented from bleeding greatly, so that a protection mechanism is arranged in the cannula main body 1, the wound of the patient can be protected by the protective sleeve 12 in the process of accepting treatment of the patient, discomfort caused by the patient is reduced when the medical staff injects liquid medicine, and therefore the protection effect of the cannula main body 1 can be indirectly improved.
The working principle is as follows: firstly, connecting band 3 sets up in one side of fixed block 2, and the opposite side of opposite side fixed block 2 also is provided with assorted connecting band 3 with it, then when medical personnel need be fixed in patient's heart position with intubate main part 1, can let medical personnel manually place fixed block 2 in patient's chest both sides, then pass connecting band 3 from patient's back, and link to each other two connecting bands 3 with the mode of magic subsides, reach with this and carry out fixed effect with fixed block 2 and intubate main part 1, make things convenient for medical personnel to use.
Then, gasket 7 sets up in the bottom of locating piece 5, and constitute jointly by absorbent cotton 702 in the middle of gasket 7 and gasket 7 outlying protective shroud 701, then when medical personnel used intubate main part 1 to treat the patient, can directly contact with the patient by gasket 7, can protect between patient's wound and syringe needle 13 simultaneously, then spout the antiseptic solution in absorbent cotton 702 by medical personnel, make absorbent cotton 702 can be isolated with external bacterium and patient's wound, cross infection appears with this to avoid the patient, gasket 7 links to each other with locating piece 5 with viscidity simultaneously, can convenience of customers change gasket 7.
Next, the sealing layer 10 is disposed inside the top end of the hollow tube 9 and is made of a silicone material, and the sealing layer 10 can be inserted into the catheter 11 by a medical staff, and then passes through the sealing layer 10, so that the liquid medicine can pass through the catheter, but the liquid medicine outside the catheter 11 can be sealed by the sealing layer 10, and the liquid medicine inside the hollow tube 9 can be prevented from flowing back under the action of the sealing layer 10.
Next, the fixed blocks 2 are arranged at two sides of the cannula main body 1, two fixed blocks 2 are arranged, then the arc tube 4 at the other side of the fixed block 2 is used for connecting the two fixed blocks 2, the radian of the arc tube 4 can be close to the front radian of the chest of a human body, meanwhile, the positioning block 5 is arranged at the periphery of the middle of the arc tube 4, the other side inside the positioning block 5 is movably connected with the linkage block 15, so that medical personnel can manually rotate the rotating block 6 at the other side of the linkage block 15, the arc blocks 16 at two ends of the linkage block 15 can be driven by the linkage block 15 to rotate by taking the linkage block 15 as the circle center, and the arc block 16 can extrude the arc tube 4 when the arc block 16 rotates and the distance between the edge of the arc block 16 and the linkage block 15 is equal to the distance between the arc tube 4 and the linkage block 15, from this can fix locating piece 5 and arc tube 4, make locating piece 5 can't continue to remove in the periphery of arc tube 4, reach the effect of advancing line location to locating piece 5 with this, then can let medical personnel use locating piece 5 to fix hollow tube 9, so be provided with positioning mechanism in the intubate main part 1, can let medical personnel according to the position of the required treatment of patient, carry out corresponding removal with locating piece 5, and can rotate back at medical personnel to turning block 6 and fix locating piece 5 and arc tube 4, reach the effect of advancing line location to locating piece 5 with this.
Finally, the hollow tube 9 is arranged in the middle of the positioning block 5, the top of the hollow tube 9 is provided with the buffer cavity 8, when medical staff injects the liquid medicine from the hollow tube 9, the flow rate of the liquid medicine is buffered by the buffer cavity 8, and then the liquid medicine is enabled to continuously flow into the body of the patient, meanwhile, because the bottom of the hollow tube 9 is provided with the protective sleeve 12, and the bottom of the protective sleeve 12 is connected with the needle 13, after the needle 13 is inserted into the body of the patient, the needle can be inserted into the body of the patient through the protective sleeve 12 between the wound of the patient and the positioning block 5, and then the wound of the patient and the skin around the wound are attached through the hemostatic layer 14 around the protective sleeve 12, so that the wound of the patient can be protected in the process of receiving treatment, meanwhile, the cannula main body 1 can be an indwelling needle, only the medical staff needs to replace the catheter 11, and then when the medical staff extracts the needle 13, the wound of the patient can be prevented from bleeding, therefore, the protective mechanism is arranged in the intubation main body 1, the wound of the patient can be protected by the protective sleeve 12 in the process of treating the patient, and the discomfort of the patient is reduced when medical care personnel inject the liquid medicine, so that the protective effect of the intubation main body 1 can be indirectly improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a cardiac surgery is with vein cannula, includes cannula main part (1), locating piece (5) and buffer chamber (8), its characterized in that: two sides of the cannula main body (1) are fixedly connected with fixed blocks (2), the other side of the fixed blocks (2) is fixedly connected with an arc-shaped tube (4), a positioning block (5) is movably connected to the periphery of the middle of the arc-shaped pipe (4), a linkage block (15) is movably connected to the other side of the interior of the positioning block (5), the two ends of the linkage block (15) are fixedly connected with arc blocks (16), the other side of the linkage block (15) is fixedly connected with a rotating block (6), the middle of the positioning block (5) is connected with a hollow pipe (9) in a penetrating way, the top of the hollow pipe (9) is fixedly connected with a buffer cavity (8), the bottom fixedly connected with protective sheath (12) of hollow tube (9), the bottom fixedly connected with syringe needle (13) of protective sheath (12), the peripheral embedding of protective sheath (12) is connected with hemostasis layer (14).
2. A cardiac surgical venous cannula as defined in claim 1 wherein: the middle top of the cannula main body (1) is embedded and connected with a guide pipe (11).
3. A cardiac surgical venous cannula as defined in claim 1 wherein: one side of the fixed block (2) is fixedly connected with a connecting belt (3).
4. A cardiac surgical venous cannula as defined in claim 1 wherein: the bottom embedding of locating piece (5) is connected with gasket (7), the centre embedding of gasket (7) is connected with absorbent cotton (702), the peripheral embedding of gasket (7) is connected with protective shroud (701).
5. A cardiac surgical venous cannula as defined in claim 1 wherein: the inner side of the top end of the hollow pipe (9) is embedded and connected with a sealing layer (10).
6. A cardiac surgical venous cannula as defined in claim 1 wherein: the pipe inserting device is characterized in that the fixing blocks (2) on two sides of the pipe inserting main body (1), the arc-shaped pipes (4) on the other sides of the fixing blocks (2), the positioning blocks (5) on the periphery of the middles of the arc-shaped pipes (4), the linkage blocks (15) on the other sides of the positioning blocks (5), the arc-shaped blocks (16) at two ends of the linkage blocks (15) and the rotating blocks (6) on the other sides of the linkage blocks (15) jointly form a positioning mechanism.
7. A cardiac surgical venous cannula as defined in claim 1 wherein: the hemostatic device is characterized in that a hollow tube (9) in the middle of the positioning block (5), a buffer cavity (8) at the top of the hollow tube (9), a protective sleeve (12) at the bottom of the hollow tube (9), a needle head (13) at the bottom of the protective sleeve (12) and a hemostatic layer (14) on the periphery of the protective sleeve (12) jointly form a protection mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120002263.1U CN214762785U (en) | 2021-01-04 | 2021-01-04 | Venous cannula for cardiac surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120002263.1U CN214762785U (en) | 2021-01-04 | 2021-01-04 | Venous cannula for cardiac surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214762785U true CN214762785U (en) | 2021-11-19 |
Family
ID=78743777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120002263.1U Expired - Fee Related CN214762785U (en) | 2021-01-04 | 2021-01-04 | Venous cannula for cardiac surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214762785U (en) |
-
2021
- 2021-01-04 CN CN202120002263.1U patent/CN214762785U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |