CN215024483U - Infant trachea cannula fixing device - Google Patents
Infant trachea cannula fixing device Download PDFInfo
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- CN215024483U CN215024483U CN202120368555.7U CN202120368555U CN215024483U CN 215024483 U CN215024483 U CN 215024483U CN 202120368555 U CN202120368555 U CN 202120368555U CN 215024483 U CN215024483 U CN 215024483U
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- sliding sleeve
- sleeve
- sliding
- infant
- trachea cannula
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- 210000003437 trachea Anatomy 0.000 title claims abstract description 81
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 34
- 230000000694 effects Effects 0.000 abstract description 25
- 210000000214 mouth Anatomy 0.000 description 23
- 238000005452 bending Methods 0.000 description 5
- 201000004193 respiratory failure Diseases 0.000 description 4
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 241001631457 Cannula Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 206010001053 acute respiratory failure Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses an infant trachea cannula fixer relates to medical auxiliary instrument technical field, include: the device comprises a fixed sleeve, a first sliding groove is formed in one side of the inner wall of the fixed sleeve, and a second sliding groove is formed in the other side, away from the first sliding groove, of the inner wall of the fixed sleeve; the first sliding sleeve is inserted in the fixed sleeve; the second sliding sleeve is inserted in one side of the fixed sleeve far away from the first sliding sleeve; the trachea cannula is inserted in the first sliding sleeve and the second sliding sleeve, and a breathing machine circulation pipeline connector is inserted at one end port of the trachea cannula close to the second sliding sleeve. Under the effect through fixed sleeving, first sliding sleeve and second sliding sleeve, can fix trachea cannula, avoid trachea cannula because of the problem that the breathing machine gas delivery that buckles and lead to blockked up, medical personnel's accessible is adjusted first sliding sleeve and second sliding sleeve simultaneously to reach the effect of adjusting the use length of this infant's trachea cannula fixer.
Description
Technical Field
The utility model relates to the technical field of medical auxiliary equipment, in particular to an infant trachea cannula fixer.
Background
In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and has a very important position in the modern medical field. The breathing machine is a vital medical device which can prevent and treat respiratory failure, reduce complications and save and prolong the life of a patient.
Generally, a ventilator is a vital medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong the life of a patient. When patients suffer from acute respiratory failure, the breathing machine is a good treatment means.
Adult patients of the breathing machine need to use the breathing machine, infant patients also need to use the breathing machine, however, some problems exist in the clinical practical operation of the infant patients, for example, the infant patients cannot have self-control force like the adult patients, and because the tracheal cannula is soft, after the tracheal cannula is inserted into the oral cavity of the infant, a part of the tracheal cannula which is reserved outside is bent due to the fact that the infant continuously turns over, the circulation pipeline of the breathing machine is blocked at one section which is connected into the oral cavity of the infant, the gas flow of the breathing machine is not smooth, the infant is difficult to breathe and even suffocate, and meanwhile, medical staff needs to continuously check and adjust the tracheal cannula of the infant, and the workload of the medical staff is increased.
Therefore, an infant tracheal cannula fixer is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an infant trachea cannula fixer, infant patient who proposes in the solution above-mentioned background art can not have the power of automatic control like adult patient, and because trachea cannula is softer, insert back in infant's oral cavity with trachea cannula, outside some trachea cannula of keeping somewhere produces buckling because infant is continuous stands up, make the circulation line of breathing machine block up in one section of inserting infant oral cavity, it is unblocked to cause the gas flow of breathing machine, thereby make the infant produce breathe not smooth, breathe difficulty and suffocate danger even, and simultaneously, medical personnel need continuous inspection, adjust the trachea cannula of infant, medical personnel's work load's problem has been increased.
In order to achieve the above object, the utility model provides a following technical scheme: an infant tracheal cannula holder comprising:
the device comprises a fixed sleeve, a first sliding groove is formed in one side of the inner wall of the fixed sleeve, and a second sliding groove is formed in the other side, away from the first sliding groove, of the inner wall of the fixed sleeve;
the first sliding sleeve is inserted into the fixed sleeve, a first limiting ring is formed at one end, close to the second sliding groove, of the first sliding sleeve, and the first limiting ring is installed in the first sliding groove and is in sliding connection with the first sliding groove;
the second sliding sleeve is inserted into one side of the fixed sleeve, which is far away from the first sliding sleeve, a second limiting ring is formed at one end of the second sliding sleeve, which is close to the first sliding groove, and the second limiting ring is installed in the second sliding groove and is in sliding connection with the second sliding groove;
the trachea cannula is inserted in the first sliding sleeve and the second sliding sleeve, and a breathing machine circulating pipeline connector is inserted in one end port of the trachea cannula close to the second sliding sleeve.
By adopting the technical scheme, when in use, one end of the tracheal cannula is inserted into the oral cavity of the infant, the other end of the tracheal cannula is left outside the oral cavity of the infant, the infant tracheal cannula fixator is sleeved at one end left outside the oral cavity of the infant through the opening-closing type design of the fixing sleeve, the first sliding sleeve and the second sliding sleeve and is used for fixing the tracheal cannula, the problem of blockage of gas conveying of a breathing machine caused by bending of the tracheal cannula is avoided, meanwhile, one end of a circulating pipeline of the breathing machine is butted with a breathing machine circulating pipeline connector and is used for conveying gas generated by the breathing machine to the oral cavity of the infant through the tracheal cannula to assist breathing of the infant; when facing sick children of different age groups, the length of keeping somewhere of trachea cannula can be different, in order to improve the fixed effect of this infant trachea cannula fixer, adapts to the trachea cannula of the different length that the sick children kept somewhere outside the oral cavity, and medical personnel can pull first sliding sleeve pipe and second sliding sleeve pipe respectively to reach the effect of adjusting this infant trachea cannula fixer's use length.
The infant tracheal cannula fixator comprises a first sliding groove, a second sliding groove and a first limiting ring, wherein the first sliding groove is formed in the upper surface of the first limiting ring, the second limiting ring is formed in the lower surface of the second sliding groove, and the first sliding groove and the second sliding groove are formed in the lower surface of the second limiting ring.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, be convenient for first spacing ring and second spacing ring can the first spout of adaptation and second spout, be convenient for first spacing ring and second spacing ring slide in first spout and second spout respectively, first spacing ring and second spacing ring play the limiting displacement to first sliding sleeve and second sliding sleeve respectively simultaneously, prevent that first sliding sleeve and second sliding sleeve from taking off when adjusting length.
The infant trachea cannula fixator comprises a first sliding sleeve and a second sliding sleeve, wherein the first sliding sleeve is connected with the second sliding sleeve in a sliding mode, and the second sliding sleeve is connected with the first sliding sleeve in a sliding mode.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, be convenient for adjust this infant trachea cannula fixer in keeping somewhere the position on the outside trachea cannula in infant's oral cavity.
The infant trachea cannula fixator comprises a first sliding sleeve and a second sliding sleeve, wherein the first sliding sleeve and the second sliding sleeve are arranged on the first sliding sleeve and the second sliding sleeve respectively, and the first sliding sleeve and the second sliding sleeve are arranged on the second sliding sleeve.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, can make the internal diameter of first sliding sleeve and second sliding sleeve laminate completely with trachea cannula's external diameter, prevent that this infant's trachea cannula fixer from because of the size does not close rocking that leads to, and influence the fixed effect of this infant's trachea cannula fixer.
The infant trachea cannula fixing device is characterized in that the breathing machine circulating pipeline connecting head is detachably connected with the trachea cannula.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, be convenient for dismantle the change with breathing machine circulating line connector.
The infant trachea cannula fixator comprises a fixing sleeve, a first sliding sleeve and a second sliding sleeve, wherein the fixing sleeve, the first sliding sleeve and the second sliding sleeve are identical in hardness, and the hardness of the fixing sleeve, the first sliding sleeve and the second sliding sleeve is larger than that of a trachea cannula.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, because the hardness of fixed sleeve, first sliding sleeve and second sliding sleeve is greater than trachea cannula's hardness to can reach the effect that prevents trachea cannula and buckle.
The infant trachea cannula fixator comprises a fixing sleeve, a first sliding sleeve and a second sliding sleeve, wherein the fixing sleeve is in open-close connection, the first sliding sleeve is in open-close connection, and the second sliding sleeve is in open-close connection.
By adopting the technical scheme, the infant tracheal cannula fixator can be conveniently used clinically, can be sleeved outside the tracheal cannula without disconnecting a circulating pipeline of the respirator, and is convenient to disassemble and assemble.
Compared with the prior art, the beneficial effects of the utility model are that:
in the scheme, the trachea cannula can be fixed under the action of the fixing sleeve, the first sliding sleeve and the second sliding sleeve, so that the problem of blockage of gas delivery of a breathing machine due to bending of the trachea cannula is avoided;
in the scheme, when sick children of different ages are faced, the indwelling lengths of the tracheal cannula are different, in order to improve the fixing effect of the tracheal cannula fixator for the infant and adapt to the tracheal cannulas of different lengths indwelling outside the oral cavity of the sick children, medical workers can adjust the first sliding sleeve and the second sliding sleeve to achieve the effect of adjusting the using length of the tracheal cannula fixator for the infant and the infant;
in the scheme, under the fixing action of the infant trachea cannula fixing device on the trachea cannula, the times of examining and adjusting the trachea cannula of a patient child by medical personnel are reduced, so that the workload of the medical personnel is reduced.
In this scheme, this infant's trachea cannula fixer is open-close type design, can make things convenient for clinical use, can not break under the condition of breathing machine circulating line, cup joint this infant's trachea cannula fixer outside the trachea cannula, simultaneously, makes things convenient for its dismouting.
Drawings
Fig. 1 is a schematic three-dimensional structure view of the infant tracheal cannula fixator of the present invention;
fig. 2 is a schematic structural view of the infant tracheal cannula fixator of the present invention;
fig. 3 is a schematic structural view of a fixing sleeve of the infant tracheal cannula fixer of the present invention;
fig. 4 is a schematic three-dimensional structure view of the first sliding sleeve of the infant tracheal cannula fixator of the present invention;
fig. 5 is a schematic three-dimensional structure view of a second sliding sleeve of the tracheal cannula fixator for infants of the present invention.
In the figure: 1. fixing the sleeve; 2. a first sliding sleeve; 3. a second sliding sleeve; 4. tracheal intubation; 5. a first chute; 6. a second chute; 7. a first limit ring; 8. a second stop collar; 9. a connector of a breathing machine circulation pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution:
an infant tracheal cannula holder comprising: a fixed sleeve 1, a first sliding sleeve 2, a second sliding sleeve 3 and an endotracheal tube 4.
A first sliding groove 5 is formed in one side of the inner wall of the fixed sleeve 1, and a second sliding groove 6 is formed in the other side, far away from the first sliding groove 5, of the inner wall of the fixed sleeve 1;
the first sliding sleeve 2 is inserted into the fixed sleeve 1, a first limiting ring 7 is formed at one end of the first sliding sleeve 2 close to the second sliding chute 6, and the first limiting ring 7 is installed in the first sliding chute 5 and is in sliding connection with the first sliding chute 5;
the second sliding sleeve 3 is inserted into one side of the fixed sleeve 1 far away from the first sliding sleeve 2, a second limiting ring 8 is formed at one end of the second sliding sleeve 3 close to the first sliding chute 5, and the second limiting ring 8 is installed in the second sliding chute 6 and is in sliding connection with the second sliding chute 6;
the trachea cannula 4 is inserted in the first sliding sleeve 2 and the second sliding sleeve 3, and a breathing machine circulating pipeline connector 9 is inserted in one end port of the trachea cannula 4 close to the second sliding sleeve 3.
By adopting the technical scheme, when in use, one end of the tracheal cannula 4 is inserted into the oral cavity of the infant, the other end of the tracheal cannula 4 is left outside the oral cavity of the infant, the infant tracheal cannula fixer is sleeved at one end left outside the oral cavity of the infant through the opening and closing design of the fixing sleeve 1, the first sliding sleeve 2 and the second sliding sleeve 3 and is used for fixing the tracheal cannula 4 so as to avoid the problem of blockage of gas delivery of a breathing machine caused by bending of the tracheal cannula 4, and meanwhile, one end of a circulating pipeline of the breathing machine is butted with a breathing machine circulating pipeline connector 9 and is used for delivering gas generated by the breathing machine to the oral cavity of the infant through the tracheal cannula 4 so as to assist the breathing of the infant; when facing sick children of different age groups, the length of keeping somewhere of trachea cannula 4 can be different, in order to improve the fixed effect of this infant trachea cannula fixer, adapts to the trachea cannula 4 of the different length that the sick children keep somewhere outside the oral cavity, and medical personnel can pull first sliding sleeve 2 and second sliding sleeve 3 respectively to reach the effect of adjusting the use length of this infant trachea cannula fixer.
As shown in fig. 2, the depth of the first sliding groove 5 matches with the thickness of the first limit ring 7, and the depth of the second sliding groove 6 matches with the thickness of the second limit ring 8.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, be convenient for first spacing ring 7 and second spacing ring 8 can the first spout 5 of adaptation and second spout 6, be convenient for first spacing ring 7 and second spacing ring 8 slide in first spout 5 and second spout 6 respectively, first spacing ring 7 and second spacing ring 8 play the limiting displacement to first sliding sleeve 2 and second sliding sleeve 3 respectively simultaneously, prevent that the pine of first sliding sleeve 2 and second sliding sleeve 3 when adjusting length from taking off.
As shown in fig. 2, wherein the outer wall of the endotracheal tube 4 is slidably connected with the inner walls of the first sliding sleeve 2 and the second sliding sleeve 3.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, be convenient for adjust this infant trachea cannula fixer in keeping somewhere the position on trachea cannula 4 outside the infant oral cavity.
As shown in fig. 1 and 2, wherein the inner diameters of the first sliding sleeve 2 and the second sliding sleeve 3 are matched with the outer diameter of the endotracheal tube 4.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, can make the internal diameter of first sliding sleeve 2 and second sliding sleeve 3 and the external diameter of trachea cannula 4 laminate completely, prevent that this infant's trachea cannula fixer from because of the size does not close rocking that leads to, and influence the fixed effect of this infant's trachea cannula fixer.
As shown in fig. 2, wherein the ventilator circuit connector 9 is detachably connected to the endotracheal tube 4.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, be convenient for dismantle the change with breathing machine circulation line connector 9.
As shown in fig. 1 and 2, the fixed sleeve 1, the first sliding sleeve 2 and the second sliding sleeve 3 have the same hardness, and the fixed sleeve 1, the first sliding sleeve 2 and the second sliding sleeve 3 have a hardness greater than that of the endotracheal tube 4.
Through adopting above-mentioned technical scheme, under the effect of above-mentioned setting, because the hardness of fixed sleeve 1, first sliding sleeve 2 and second sliding sleeve 3 is greater than trachea cannula 4's hardness to can reach the effect that prevents trachea cannula 4 and buckle.
As shown in fig. 1, 4 and 5, the fixed sleeve 1 is an open-close type connection, the first sliding sleeve 2 is an open-close type connection, and the second sliding sleeve 3 is an open-close type connection.
Through adopting above-mentioned technical scheme, foretell setting can be in convenient clinical use, can be under the condition of not breaking breathing machine circulating line, cup joint this infant's trachea cannula fixer outside trachea cannula 4, simultaneously, makes things convenient for its dismouting.
The structure principle is as follows: before use, the infant tracheal cannula fixer is sterilized and disinfected firstly, so that the infant tracheal cannula fixer can be used under the aseptic condition, and the infection of an infant patient is avoided; when the infant trachea cannula fixing device is used, one end of a trachea cannula 4 is inserted into the oral cavity of an infant, the other end of the trachea cannula 4 is reserved outside the oral cavity of the infant, the infant trachea cannula fixing device is sleeved at one end reserved outside the oral cavity of the infant through the opening-closing design of the fixing sleeve 1, the first sliding sleeve 2 and the second sliding sleeve 3 and used for fixing the trachea cannula 4, the problem that the trachea cannula 4 is blocked due to bending of ventilator gas conveying is avoided, meanwhile, one end of a circulating pipeline of a ventilator is butted with a ventilator circulating pipeline connector 9 and used for conveying gas generated by the ventilator into the oral cavity of the infant through the trachea cannula 4 and assisting breathing of the infant; when facing sick children of different age groups, the length of keeping somewhere of trachea cannula 4 can be different, in order to improve the fixed effect of this infant trachea cannula fixer, adapts to the trachea cannula 4 of the different length that the sick children keep somewhere outside the oral cavity, and medical personnel can pull first sliding sleeve 2 and second sliding sleeve 3 respectively to reach the effect of adjusting the use length of this infant trachea cannula fixer.
It should be noted that the fixed sleeve 1, the first sliding sleeve 2 and the second sliding sleeve 3 are all transparent, so that the medical staff can observe the scale of the endotracheal tube 4 conveniently.
In conclusion, in the scheme, the tracheal cannula 4 can be fixed under the action of the fixed sleeve 1, the first sliding sleeve 2 and the second sliding sleeve 3, so that the problem of blockage of gas delivery of the respirator caused by bending of the tracheal cannula 4 is avoided;
in the scheme, when sick children of different ages are faced, the indwelling lengths of the tracheal cannula 4 are different, in order to improve the fixing effect of the tracheal cannula fixer for infants, the tracheal cannula 4 with different lengths which are indwelling outside the oral cavity of the sick children is adapted, and medical care personnel can adjust the using length of the tracheal cannula fixer for infants by adjusting the first sliding sleeve 2 and the second sliding sleeve 3;
in the scheme, under the fixing action of the infant trachea cannula fixing device on the trachea cannula 4, the times of examining and adjusting the trachea cannula of a sick infant by medical personnel are reduced, so that the workload of the medical personnel is reduced.
In this scheme, this infant's trachea cannula fixer is for the open-close type design, can see out from figure 1 that it has tearing line to reserve, can make things convenient for the clinical use of tearing, can not break under the condition of breathing machine circulating line, cup joint this infant's trachea cannula fixer outside trachea cannula 4, simultaneously, makes things convenient for its dismouting.
The part not involved in the utility model is the same as the prior art or can be realized by adopting the prior art. 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. An infant tracheal cannula fixator comprising:
the device comprises a fixed sleeve (1), wherein a first sliding groove (5) is formed in one side of the inner wall of the fixed sleeve (1), and a second sliding groove (6) is formed in the other side, far away from the first sliding groove (5), of the inner wall of the fixed sleeve (1);
the first sliding sleeve (2) is inserted into the fixed sleeve (1), a first limiting ring (7) is formed at one end, close to the second sliding groove (6), of the first sliding sleeve (2), and the first limiting ring (7) is installed in the first sliding groove (5) and is in sliding connection with the first sliding groove (5);
the second sliding sleeve (3) is inserted into one side, away from the first sliding sleeve (2), of the fixed sleeve (1), a second limiting ring (8) is formed at one end, close to the first sliding groove (5), of the second sliding sleeve (3), and the second limiting ring (8) is installed in the second sliding groove (6) and is in sliding connection with the second sliding groove (6);
trachea cannula (4), trachea cannula (4) are pegged graft in first sliding sleeve (2) and second sliding sleeve (3), trachea cannula (4) are close to the one end port grafting of second sliding sleeve (3) and are had breathing machine circulation pipeline connector (9).
2. The infant tracheal cannula fixator according to claim 1, wherein: the depth of the first sliding groove (5) is matched with the thickness of the first limiting ring (7), and the depth of the second sliding groove (6) is matched with the thickness of the second limiting ring (8).
3. The infant tracheal cannula fixator according to claim 1, wherein: the outer wall of the trachea cannula (4) is in sliding connection with the inner walls of the first sliding sleeve (2) and the second sliding sleeve (3).
4. The infant tracheal cannula fixator according to claim 3, wherein: the inner diameters of the first sliding sleeve (2) and the second sliding sleeve (3) are matched with the outer diameter of the trachea cannula (4).
5. The infant tracheal cannula fixator according to claim 1, wherein: the respirator circulating pipeline connector (9) is detachably connected with the trachea cannula (4).
6. The infant tracheal cannula fixator according to claim 1, wherein: the hardness of the fixed sleeve (1), the hardness of the first sliding sleeve (2) and the hardness of the second sliding sleeve (3) are the same, and the hardness of the fixed sleeve (1), the hardness of the first sliding sleeve (2) and the hardness of the second sliding sleeve (3) are greater than that of the trachea cannula (4).
7. The infant tracheal cannula fixator according to claim 6, wherein: the fixed sleeve (1) is in open-close connection, the first sliding sleeve (2) is in open-close connection, and the second sliding sleeve (3) is in open-close connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120368555.7U CN215024483U (en) | 2021-02-10 | 2021-02-10 | Infant trachea cannula fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120368555.7U CN215024483U (en) | 2021-02-10 | 2021-02-10 | Infant trachea cannula fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215024483U true CN215024483U (en) | 2021-12-07 |
Family
ID=79256398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120368555.7U Expired - Fee Related CN215024483U (en) | 2021-02-10 | 2021-02-10 | Infant trachea cannula fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215024483U (en) |
-
2021
- 2021-02-10 CN CN202120368555.7U patent/CN215024483U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |