CN215385808U - Cardiopulmonary resuscitation pressing device for emergency treatment - Google Patents
Cardiopulmonary resuscitation pressing device for emergency treatment Download PDFInfo
- Publication number
- CN215385808U CN215385808U CN202121799602.XU CN202121799602U CN215385808U CN 215385808 U CN215385808 U CN 215385808U CN 202121799602 U CN202121799602 U CN 202121799602U CN 215385808 U CN215385808 U CN 215385808U
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- CN
- China
- Prior art keywords
- cardiopulmonary resuscitation
- supporting plate
- fixing
- fixing band
- pressing belt
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- Expired - Fee Related
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- 238000002680 cardiopulmonary resuscitation Methods 0.000 title claims abstract description 99
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 210000000038 chest Anatomy 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 210000001099 axilla Anatomy 0.000 description 3
- 210000004556 brain Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 208000010496 Heart Arrest Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 208000033830 Hot Flashes Diseases 0.000 description 1
- 206010060800 Hot flush Diseases 0.000 description 1
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003699 hair surface Effects 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
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- Percussion Or Vibration Massage (AREA)
Abstract
The utility model discloses a cardiopulmonary resuscitation pressing device for emergency treatment, which comprises a cardiopulmonary resuscitation instrument body and a supporting plate, wherein the cardiopulmonary resuscitation instrument body is positioned above the supporting plate, a first fixing band, a second fixing band, a third fixing band and a fourth fixing band are sequentially arranged at four corners of the cardiopulmonary resuscitation instrument body clockwise, the left side and the right side of the supporting plate are respectively correspondingly and adaptively connected with a first fixing ring, a second fixing ring, a third fixing ring and a fourth fixing band one by one, the upper end surface of the supporting plate is positioned under the cardiopulmonary resuscitation instrument body, and a driven pressing belt which is adaptively connected with a driving pressing belt on the cardiopulmonary resuscitation instrument body is arranged below the cardiopulmonary resuscitation instrument body. According to the cardiopulmonary resuscitation device, the supporting plate is arranged, and the cardiopulmonary resuscitation device body is sequentially fixed on the supporting plate through the fixing belts, so that the cardiopulmonary resuscitation device body can be firmly fixed on the chest of a patient, and the normal use of the cardiopulmonary resuscitation device body is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to a cardiopulmonary resuscitation pressing device for emergency treatment.
Background
Conventional freehand CPR (cardiopulmonary resuscitation) has very little blood flow to the heart and brain, and studies have shown that freehand CPR can only provide 10% -20% of the blood flow to the heart and 20% -30% of the blood flow to the brain, equivalent to normal physiological conditions. The medical community has an urgent need for high quality CPR techniques, coupled with the inherent limitations of traditional free-hand CPR, has stimulated the hot flashes of new techniques that increase the amount of circulating blood, and cardiopulmonary resuscitation devices have come into force.
A cardiopulmonary resuscitation apparatus, also commonly referred to as a cardiopulmonary resuscitation machine, a cardiopulmonary resuscitator, or the like, is a mechanical device used to rescue cardiac arrest. In the cardiopulmonary resuscitation emergency, automated mechanical chest compression is one of the main means for performing cardiopulmonary resuscitation. The original purpose of the design of the cardio-pulmonary resuscitation mechanical equipment is to increase the blood flow of the heart and the brain of a patient suffering from cardiac arrest and play a role in bridging subsequent defibrillation, intravenous medication, vascular reconstruction and the like.
In practice, it is found that most of the cardiopulmonary resuscitation devices lack stable fixing components when performing cardiopulmonary resuscitation on a patient, so that the cardiopulmonary resuscitation devices are easy to deviate when in use, and are easy to generate the conditions of pressing angle deviation, pressing point dislocation, pressing force degree reduction and the like, and are very unfavorable for the cardiopulmonary resuscitation of the patient.
Based on the defects in the prior art, the utility model discloses a cardiopulmonary resuscitation pressing device for emergency treatment, which is characterized in that a supporting plate is arranged, and a cardiopulmonary resuscitation instrument body is sequentially fixed on the supporting plate through a first fixing band, a second fixing band, a third fixing band and a fourth fixing band, so that the cardiopulmonary resuscitation instrument body can be firmly fixed on the chest of a patient, the cardiopulmonary resuscitation instrument body cannot deviate in the using process, and the using effect of the cardiopulmonary resuscitation instrument is greatly improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model aims to provide a cardiopulmonary resuscitation pressing device for emergency treatment.
The utility model provides the following technical scheme:
the utility model provides a cardiopulmonary resuscitation press device for emergency call, includes cardiopulmonary resuscitation appearance body, still includes the backup pad, cardiopulmonary resuscitation appearance body is located the top of backup pad, four corners of cardiopulmonary resuscitation appearance body have set gradually first fixed band, second fixed band, third fixed band, fourth fixed band clockwise, the left and right sides of backup pad respectively with first fixed band, second fixed band, third fixed band, fourth fixed band one-to-one adaptation are connected with first solid fixed ring, the solid fixed ring of second, the solid fixed ring of third, the solid fixed ring of fourth, the up end of backup pad is located be provided with under the cardiopulmonary resuscitation appearance body with the driven pressure area of the initiative pressure area adaptation connection on the cardiopulmonary resuscitation appearance body.
Preferably, the left side and the right side of the cardiopulmonary resuscitation instrument body are respectively provided with a left tightening wheel and a right tightening wheel, the active pressing belt comprises a left active pressing belt and a right active pressing belt, one end of the left active pressing belt and one end of the right active pressing belt, which are close to the cardiopulmonary resuscitation instrument body, are respectively connected with the left tightening wheel and the right tightening wheel, and the other ends of the left active pressing belt and the right active pressing belt are respectively connected with two ends of the driven pressing belt.
Preferably, the left initiative pressing belt, the right initiative pressing belt and the driven pressing belt junction are provided with first magic tape stabbing face, the both ends of driven pressing belt be provided with first magic tape stabbing face adaptation connection's first magic tape matt surface.
Preferably, the middle part of the driven pressing belt is connected with the supporting plate through a connecting piece.
Preferably, the lateral surface of first fixed band, second fixed band, third fixed band, fourth fixed band all is provided with second magic tape matt surface, the thorn face is pasted to the second magic.
Preferably, the second hook-and-loop fastener is located at one end of the first fixing band, the second fixing band, the third fixing band and the fourth fixing band, which are far away from the cardiopulmonary resuscitation apparatus body.
Preferably, an arc-shaped supporting plate for supporting the head is arranged on one side of the upper end face of the supporting plate, and the arc-shaped supporting plate is inclined at a certain angle along the front-back direction of the supporting plate.
Preferably, a headrest is further arranged at one end, close to the cardiopulmonary resuscitation apparatus body, of the arc-shaped supporting plate, of the upper end face of the supporting plate, and the inclined high end of the arc-shaped supporting plate and the height of the headrest are located on the same horizontal plane.
Preferably, soft cushion blocks are further arranged on the left side and the right side of the arc-shaped supporting plate on the upper end face of the supporting plate.
Preferably, the upper end surfaces of the headrest and the arc-shaped supporting plate are respectively provided with a memory sponge layer.
Preferably, the cardiopulmonary resuscitation device body is a complete chest, chest and abdomen combined cardiopulmonary resuscitation device.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the utility model relates to a cardiopulmonary resuscitation pressing device for emergency treatment, which is characterized in that a supporting plate is arranged, a cardiopulmonary resuscitation instrument body is fixed on the supporting plate through a first fixing band, a second fixing band, a third fixing band and a fourth fixing band which can sequentially penetrate through a corresponding first fixing ring, a second fixing ring, a third fixing ring and a fourth fixing ring, and in the connecting process, the first fixing band is positioned above the left shoulder of a patient, the second fixing band is positioned above the right shoulder of the patient, the third fixing band is positioned below the right axilla of the patient, and the fourth fixing band is positioned below the left axilla of the patient, so that the cardiopulmonary resuscitation instrument body can be firmly fixed on the chest of the patient, the phenomenon of deviation of the cardiopulmonary resuscitation instrument body in the using process can be avoided, and the using effect of the cardiopulmonary resuscitation instrument is greatly improved.
(2) According to the cardiopulmonary resuscitation pressing device for emergency treatment, the driven pressing belt which is in adaptive connection with the driving pressing belt on the cardiopulmonary resuscitation apparatus body is arranged on the upper end face of the supporting plate and is located right below the cardiopulmonary resuscitation apparatus body, and the middle part of the driven pressing belt is connected with the supporting plate through the connecting piece, so that when a patient lies on the supporting plate, the driven pressing belt is located just below the patient, the patient does not need to be lifted when the cardiopulmonary resuscitation apparatus body is placed, and the whole chest cavity of the driving pressing belt on the cardiopulmonary resuscitation apparatus body is conveniently wrapped on the patient.
(3) According to the cardiopulmonary resuscitation pressing device for emergency treatment, the arc-shaped supporting plate for supporting the head is arranged on one side of the upper end face of the supporting plate, the arc-shaped supporting plate is arranged in an inclined mode at a certain angle along the front-back direction of the supporting plate, the headrest is further arranged on the upper end face of the supporting plate, which is located at one end, close to the cardiopulmonary resuscitation instrument body, of the arc-shaped supporting plate, the inclined high end of the arc-shaped supporting plate and the height of the headrest are located on the same horizontal plane, so that the chin of a patient can be too high through the headrest, the head of the patient can be tilted backwards through the inclined arc-shaped supporting plate, an air passage can be opened, the situation that the air passage is blocked by a unconscious person due to tongue falling back is avoided, and rescue is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a support plate structure according to the present invention.
Fig. 2 is a schematic structural diagram of a cardiopulmonary resuscitation apparatus of the present invention.
Fig. 3 is a schematic view of the structure of the arc-shaped supporting plate of the utility model.
In the figure: 1. a support plate; 2. pressing the belt by a driven press; 3. a cardiopulmonary resuscitation device body; 41. pressing the belt actively on the left; 42. pressing the belt at the right initiative; 5. a first securing strap; 6. a second securing strap; 7. a third fixing band; 8. a fourth fixing strap; 9. a first retaining ring; 10. a second retaining ring; 11. a third fixing ring; 12. a fourth retaining ring; 13. a first magic tape matt surface; 14. a first magic tape stabbing surface; 15. a second magic tape matt surface; 16. a second magic tape stabbing surface; 17. a left take-up wheel; 18. a right pinch roller; 19. a headrest; 20. an arc-shaped supporting plate; 21. a soft cushion block; 22. a connecting member; 23. a memory sponge layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of 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, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-3, a cardiopulmonary resuscitation pressing device for emergency treatment comprises a cardiopulmonary resuscitation device body 3, and further comprises a supporting plate 1, the cardio-pulmonary resuscitation apparatus body 3 is positioned above the supporting plate 1, a first fixing belt 5, a second fixing belt 6, a third fixing belt 7 and a fourth fixing belt 8 are sequentially arranged at four corners of the cardio-pulmonary resuscitation apparatus body 3 clockwise, the left side and the right side of the supporting plate 1 are respectively correspondingly and adaptively connected with a first fixing ring 9, a second fixing ring 10, a third fixing ring 11 and a fourth fixing ring 12 with the first fixing band 5, the second fixing band 6, the third fixing band 7 and the fourth fixing band 8, the upper end surface of the supporting plate 1 is arranged under the cardio-pulmonary resuscitation apparatus body 3, and a driven pressing belt 2 which is in adaptive connection with the driving pressing belt on the cardio-pulmonary resuscitation apparatus body 3 is arranged on the upper end surface of the supporting plate. The first fixing ring 9 and the fourth fixing ring 12 are located on the left side face of the supporting plate 1, the second fixing ring 10 and the third fixing ring 11 are located on the right side face of the supporting plate 1, and through the arrangement, the fact that the end, away from the cardiopulmonary resuscitation instrument body 3, of the first fixing band 5 penetrates through the first fixing ring 9 and then is matched with the supporting plate 1 through the second magic tape rough surface 15 and the second magic tape stabbing surface 16 of the first fixing band, and the first fixing band 5 can be located above the left shoulder of a patient; one end of the second fixing strap 6, which is far away from the cardiopulmonary resuscitation instrument body 3, penetrates through the second fixing ring 9, and then the right upper corner of the cardiopulmonary resuscitation instrument body 3 is connected with the supporting plate 1 through the mutual matching of the second magic tape rough surface 15 and the second magic tape stabbing surface 16, and the second fixing strap can be positioned above the right shoulder of the patient; one end of the third fixing strap 7, which is far away from the cardiopulmonary resuscitation instrument body 3, penetrates through the third fixing ring 11 and then is matched with the supporting plate 1 through the second magic tape hair surface 15 and the second magic tape stabbing surface 16 of the third fixing strap, so that the right lower corner of the cardiopulmonary resuscitation instrument body 3 is connected with the supporting plate 1, and the third fixing strap can be positioned below the right axilla of a patient; one end that cardiopulmonary resuscitation appearance body 3 was kept away from to fourth fixed band 8 passes back through self second magic tape hair side 15 in the fixed ring 12 of fourth, second magic tape thorn face 16 mutually supports the left lower corner that makes cardiopulmonary resuscitation appearance body 3 and is connected with backup pad 1, and can make fourth fixed band 8 be located patient's left armpit below, thereby can make the firm chest of fixing at the patient of cardiopulmonary resuscitation appearance body, can guarantee that the phenomenon of squinting can not take place yet in the cardiopulmonary resuscitation appearance body use, the result of use of the cardiopulmonary resuscitation appearance that improves greatly.
The left side and the right side of the cardio-pulmonary resuscitation instrument body 3 are respectively provided with a left tightening wheel 17 and a right tightening wheel 18, the active pressing belt comprises a left active pressing belt 41 and a right active pressing belt 42, one end of the left active pressing belt 41 and one end of the right active pressing belt 42, which are close to the cardio-pulmonary resuscitation instrument body 3, are respectively connected with the left tightening wheel 17 and the right tightening wheel 18, and the other ends of the left active pressing belt 41 and the right active pressing belt 42 are respectively connected with two ends of the driven pressing belt 2. Through this setting, can guarantee to press area 41 through driven press area 2 and left initiative, cooperation between the area 42 is pressed to the right initiative, can realize whole thorax parcel to the patient, through cardiopulmonary resuscitation appearance body 3's work, can make left side tighten up wheel 17, right side tighten up wheel 18 rotates, the realization is pressed area 41 to left initiative, right initiative is pressed and is pressed the tightening up of area 42, thereby satisfy the mode of pressing of whole thorax, press area 41 through making driven press area 2 and left initiative press area, right initiative press area 42 separation sets up, thereby when the patient lies in the backup pad, driven press area just is located patient's below, need not lift up the patient when carrying out cardiopulmonary resuscitation appearance body and laying, thereby make things convenient for the initiative on the cardiopulmonary resuscitation appearance body to press and press area whole thorax parcel on the patient is on one's body.
The left initiative pressing belt 41, the right initiative pressing belt 42 with the driven pressing belt 2 junction is provided with first magic tape stabbing face 14, the both ends of driven pressing belt 2 be provided with first magic tape stabbing face 14 adaptation connection's first magic tape matt face 13.
The middle part of the driven pressing belt 2 is connected with the supporting plate 1 through a connecting piece 22. The connecting member 22 has a certain elasticity so as to facilitate the pressing of the driven pressing belt 2 against the back of the patient.
The lateral surfaces of the first fixing band 5, the second fixing band 6, the third fixing band 7 and the fourth fixing band 8 are provided with a second magic tape rough surface 15 and a second magic tape stabbing surface 16.
The second hook-and-loop fastener rough surface 15 is located at one end, far away from the cardiopulmonary resuscitation instrument body 3, of the first fixing band 5, the second fixing band 6, the third fixing band 7 and the fourth fixing band 8. Through this setting, can make second magic subsides thorn face 16 be located the one side of keeping away from patient's skin, avoided the harm of second magic subsides thorn face 16 to patient's skin.
An arc supporting plate 20 for supporting the head is arranged on one side of the upper end face of the supporting plate 1, and the arc supporting plate 20 is inclined at a certain angle along the front-back direction of the supporting plate 1.
The upper end surface of the supporting plate 1 is positioned at one end of the arc-shaped supporting plate 20 close to the cardiopulmonary resuscitation instrument body 3, and a headrest 19 is further arranged at the upper end of the arc-shaped supporting plate 20, and the height of the headrest 19 is the same as the horizontal plane. Through this setting, can guarantee that 19 messenger of headrest can the patient the chin too high, the arc layer board 20 of slope can make patient's head pitch-up backward to can open the air flue, avoid the emergence of the people of coma often causing the air flue to block up the condition because of the tongue tenesmus, conveniently rescue.
The upper end surface of the supporting plate 1 is positioned at the left side and the right side of the arc-shaped supporting plate 20 and is also provided with soft cushion blocks 21. The head of the patient can be further fixed, and the head of the patient is prevented from being deviated.
The upper end surfaces of the headrest 19 and the arc-shaped supporting plate 20 are respectively provided with a memory sponge layer 23. With this arrangement, the comfort can be increased.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solution of the present invention and the equivalent replacement or modification of the technical solution and the inventive concept thereof within the technical scope of the present invention.
Claims (7)
1. The utility model provides a cardiopulmonary resuscitation press device for emergency call, includes cardiopulmonary resuscitation appearance body (3), its characterized in that: also comprises a supporting plate (1), the cardiopulmonary resuscitation instrument body (3) is positioned above the supporting plate (1), the four corners of the cardiopulmonary resuscitation instrument body (3) are sequentially provided with a first fixing belt (5), a second fixing belt (6), a third fixing belt (7) and a fourth fixing belt (8) clockwise, the left side and the right side of the supporting plate (1) are respectively correspondingly and adaptively connected with a first fixing ring (9), a second fixing ring (10), a third fixing ring (11) and a fourth fixing ring (12) with the first fixing band (5), the second fixing band (6), the third fixing band (7) and the fourth fixing band (8) one by one, the upper end face of the supporting plate (1) is positioned under the cardio-pulmonary resuscitation apparatus body (3) and is provided with a driven pressing belt (2) which is in adaptive connection with the driving pressing belt on the cardio-pulmonary resuscitation apparatus body (3).
2. The emergency cardiopulmonary resuscitation pressing device according to claim 1, wherein a left tightening wheel (17) and a right tightening wheel (18) are respectively disposed on left and right sides of the cardiopulmonary resuscitation apparatus body (3), the active pressing belt comprises a left active pressing belt (41) and a right active pressing belt (42), one end of the left active pressing belt (41) and one end of the right active pressing belt (42) close to the cardiopulmonary resuscitation apparatus body (3) are respectively connected with the left tightening wheel (17) and the right tightening wheel (18), and the other ends of the left active pressing belt (41) and the right active pressing belt (42) are respectively connected with two ends of the driven pressing belt (2).
3. The cardiopulmonary resuscitation pressing device for emergency treatment according to claim 2, wherein a first magic tape stabbing surface (14) is arranged at the connection of the left driving pressing belt (41), the right driving pressing belt (42) and the driven pressing belt (2), and first magic tape fluffing surfaces (13) which are in adaptive connection with the first magic tape stabbing surface (14) are arranged at the two ends of the driven pressing belt (2).
4. An emergency cardiopulmonary resuscitation compression device according to claim 2, wherein the middle part of the driven compression band (2) is connected to the support plate (1) by a connector (22).
5. The cardiopulmonary resuscitation pressing device for emergency treatment according to claim 1, wherein the first fixing band (5), the second fixing band (6), the third fixing band (7) and the fourth fixing band (8) are provided with a second magic tape hair sticking surface (15) and a second magic tape puncturing surface (16) on the outer side.
6. The emergency cardiopulmonary resuscitation pressing device according to claim 5, wherein the second hook and loop fastener (15) is located at one end of the first fixing band (5), the second fixing band (6), the third fixing band (7) and the fourth fixing band (8) far away from the cardiopulmonary resuscitation instrument body (3).
7. The emergency cardiopulmonary resuscitation pressing device according to claim 1, wherein an arc supporting plate (20) for supporting a head is disposed on one side of an upper end surface of the supporting plate (1), and the arc supporting plate (20) is disposed to be inclined at a certain angle in a front-back direction of the supporting plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121799602.XU CN215385808U (en) | 2021-08-03 | 2021-08-03 | Cardiopulmonary resuscitation pressing device for emergency treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121799602.XU CN215385808U (en) | 2021-08-03 | 2021-08-03 | Cardiopulmonary resuscitation pressing device for emergency treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215385808U true CN215385808U (en) | 2022-01-04 |
Family
ID=79656871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121799602.XU Expired - Fee Related CN215385808U (en) | 2021-08-03 | 2021-08-03 | Cardiopulmonary resuscitation pressing device for emergency treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215385808U (en) |
-
2021
- 2021-08-03 CN CN202121799602.XU patent/CN215385808U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220104 |