CN111840668B - Novel sputum aspirator - Google Patents
Novel sputum aspirator Download PDFInfo
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- CN111840668B CN111840668B CN202010705701.0A CN202010705701A CN111840668B CN 111840668 B CN111840668 B CN 111840668B CN 202010705701 A CN202010705701 A CN 202010705701A CN 111840668 B CN111840668 B CN 111840668B
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- sputum aspirator
- hole
- sputum
- baffle
- piston
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- 206010036790 Productive cough Diseases 0.000 title claims abstract description 124
- 208000024794 sputum Diseases 0.000 title claims abstract description 122
- 210000003802 sputum Anatomy 0.000 title claims abstract description 122
- 238000007789 sealing Methods 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 abstract description 4
- 206010011224 Cough Diseases 0.000 description 17
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000000241 respiratory effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010062717 Increased upper airway secretion Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 208000026435 phlegm Diseases 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
Classifications
-
- A61M1/0023—
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0463—Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The invention belongs to the field of medical equipment, and particularly relates to a novel sputum aspirator, which comprises a sputum aspirator main body, wherein a baffle tube is fixedly connected to the middle part of the inner side wall of the sputum aspirator main body, a sliding hole is formed between the baffle tube and the fixedly connected part of the sputum aspirator main body, a piston is arranged in the baffle tube and is in sliding connection with the inner side surface of the baffle tube, a push rod is fixedly connected to the middle part of the upper surface of the piston, a sleeve is fixedly connected to the upper end of the push rod and is matched with the baffle tube, an elastic piece is arranged between the sleeve and the sputum aspirator main body, a blocker is fixedly connected to the bottom of the sleeve, a through hole is formed below the side wall of the sputum aspirator main body, and a suction tube is fixedly arranged at the port of the through hole. The sputum absorber can absorb sputum to a designated position, cannot affect other people, and can keep the patient's dignity.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a novel sputum aspirator.
Background
Many tracheotomy patients require a long-term indwelling tracheostomy tube during retrieval. The patient's breathing is accomplished through the autogenous cutting cannula, and sputum from the patient's lungs is also expelled from the autogenous cutting cannula. Most people with the disease generally need to lie in bed for a long time, and the consciousness of many patients is impaired, and even if conscious, the patients do not have enough ability to cough the sputum to a designated place. Cough is uncontrollable and the patient can cough as long as the patient is stimulated by the cough. During the process of cough and expectoration of patients, sputum is frequently applied to clothes, quilt covers, air, even medical staff communicating with the patients and family members, so that carers are not dared to approach, lovers and others are not dared to communicate with the patients, surrounding people are far away from the patients, even the patients can see the patients, and the patients can take bacterial sputum where to be sprayed, so that infection probability of other patients is increased. This situation can easily lead to patient's islanding, and the patient's self-esteem can be severely injured by the unfriendly reaction of others, and the mood can be more depressed, thus being very unfavorable to the illness. In addition, some trachea need to pause the breathing machine used by the patient before intubation, and the situation that the expectoration of the patient is uncontrolled also occurs, so we propose a novel sputum aspirator.
Disclosure of Invention
The invention aims to provide a novel sputum aspirator, which aims to solve the problems that the existing sputum aspirator provided in the background art cannot absorb sputum to a specified position, so that influences are caused to other people.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a novel sputum aspirator, includes the sputum aspirator main part, the centre fixedly connected with baffle pipe of sputum aspirator main part inside wall, baffle pipe with the slide hole has been seted up to department between the sputum aspirator main part fixed connection, be provided with the piston in the baffle pipe, the centre fixedly connected with push rod of piston upper surface, the upper end fixedly connected with sleeve of push rod, just the sleeve with baffle pipe assorted, the sleeve with be provided with the elastic component between the sputum aspirator main part, sleeve bottom fixedly connected with blocking device, the through-hole has been seted up to the below on sputum aspirator main part surface right side, the fixed suction pipe that is provided with in port department of through-hole, just the through-hole with blocking device is corresponding, blocking device is in swing joint from top to bottom in the slide hole, just blocking device bottom with through-hole assorted.
Preferably, a connecting hole is formed in the lower portion of the right side of the outer surface of the sputum aspirator main body, the through hole is located above the connecting hole, an oxygen pipe is arranged on the inner side of the connecting hole, a first sealing ring is fixedly arranged at the joint of the oxygen pipe and the connecting hole, and a breathing port is formed in the lower portion of the left side of the outer surface of the sputum aspirator main body.
Preferably, a sliding groove is formed in the outer side wall of the baffle tube, a sliding block is movably connected to the inner side of the sliding groove, and the outer side face of the sliding block is connected with the bottom of the sleeve.
Preferably, the middle of the upper surface of the sputum aspirator main body is provided with a mounting hole, the inner side of the mounting hole is in threaded connection with an adjusting rod, the bottom of the adjusting rod is rotationally connected with a rotating piece, the rotating piece is positioned in the sputum aspirator main body, the bottom of the rotating piece is connected with the upper end of the elastic piece, and the bottom of the elastic piece is connected with the sleeve.
Preferably, the joint of the suction pipe and the through hole is fixedly provided with a second sealing ring, and the upper side and the lower side of the adjusting rod and the mounting hole are fixedly provided with third sealing rings.
Preferably, the top integrated into one piece of baffle pipe has first check baffle, be provided with logical groove in the middle of the first check baffle, it has the push rod to lead to inslot portion penetration, install the piston on the push rod, just the piston with be provided with sealed pad between the check baffle, the one end of push rod is connected with the second check baffle.
Preferably, the blocker may be provided on the piston or on the push rod.
Preferably, the whole sputum aspirator device is made of transparent hard materials.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the novel sputum aspirator, when a patient has sputum, the patient can cough, the sputum is cough to the interior of the sputum aspirator main body, the piston is pushed upwards due to air flow generated when the patient cough, the blocker is driven upwards, the sputum in the sputum aspirator main body is sucked smoothly, the sputum in the sputum aspirator main body is sucked away, in the process of sucking away the sputum, the sputum has certain viscosity, the speed of the sputum passing through the through hole is slower, the sliding hole is connected with the through hole, the sliding hole is led into the space formed by the sputum aspirator main body, the piston and the baffle pipe, a negative pressure environment is formed in the space formed by the sputum aspirator main body, the piston and the baffle pipe when the sputum is sucked, so that the piston system is not restored before the sputum is sucked completely, and when the sputum is sucked completely, the negative pressure is not released, and the air flows into the sputum through a large amount through a breathing port, and the negative pressure is larger than the flowing speed of the sputum in the through hole, and is greatly acted by the negative pressure in the space formed by the sputum, and the negative pressure is pushed down by the piston, and the negative pressure is removed by the piston, and the negative pressure is further reduced, and the negative pressure is further pushed down by the sleeve, and the negative pressure is further removed, the sleeve is further removed, and the negative pressure is pushed down by the sleeve is moved, and the sleeve is further removed;
2. this novel sputum aspirator promotes elastic component through adjusting the pole to be convenient for adjust the pressure size of elastic component, be convenient for use, the baffle outside is equipped with the spout, and the slider that the spout outside was equipped with is connected with the sleeve through the slider, thereby improves the stability of piston, is favorable to inhaling the phlegm.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the portion A of the present invention;
FIG. 4 is an enlarged view of the portion B of the present invention;
fig. 5 is a front cross-sectional view of a preferred embodiment of the present invention.
In the figure: 1. a sputum aspirator body; 11. a connection hole; 12. an oxygen pipe; 13. a first seal ring; 14. a breathing port; 2. a through hole; 21. a suction tube; 22. a second seal ring; 23. a mounting head; 24. a suction pump; 3. a mounting hole; 31. an adjusting rod; 32. a third seal ring; 33. a rotating member; 34. an elastic member; 5. a sleeve; 51. a push rod; 52. a piston; 53. a sealing gasket; 54. a blocker; 55. a second grid baffle 6, a baffle tube; 61. a chute; 62. a slide block; 63. a slide hole; 7. a first lattice baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be made clear below in conjunction with the drawings in the embodiments of the present invention; it will be apparent that the embodiments described are only some, but not all, of the embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a novel sputum aspirator, including sputum aspirator main part 1, the intermediate part fixedly connected with baffle pipe 6 of sputum aspirator main part 1 inside wall, slide hole 63 has been seted up to department between baffle pipe 6 and the sputum aspirator main part 1 fixed connection, be provided with piston 52 in the baffle pipe 6, and piston 52 and the interior sliding connection of baffle pipe 6, the intermediate part fixedly connected with push rod 5 of piston 52 upper surface, the upper end fixedly connected with sleeve 5 of push rod 51, and sleeve 5 and baffle pipe 6 assorted, be provided with elastic component 34 between sleeve 5 and the sputum aspirator main part 1, sleeve 5 bottom fixedly connected with blocker 54, blocker 54 also can set up on piston 52 or push rod 51. The lower part on the right side of the outer surface of the sputum aspirator main body 1 is provided with a through hole 2, the port of the through hole 2 is fixedly provided with an aspiration tube 21, the through hole 2 corresponds to a blocker 54, the blocker 54 is in sliding connection with a sliding hole 63, the bottom of the blocker 54 is matched with the through hole 2, the head end of the resistor is made of a material capable of effectively blocking the through hole 2, such as a rubber material, and the whole sputum aspirator can be made of transparent hard materials.
Through adopting above-mentioned technical scheme, when patient has the sputum, patient will cough, cough the sputum to the inside of sputum aspirator main part 1, because the air current when patient coughs, promote piston 52 upwards, and then make the blocker 54 upwards drive, make the suction of sputum aspirator main part 1 unobstructed, and then the sputum of sputum aspirator main part 1 inside is sucked away, in the in-process of sucking away the sputum, because sputum aspirator main part 1 is equipped with through-hole 2, and be sealed state between piston 52 and the baffle pipe 6, because slide hole 63 communicates with each other with through-hole 2, slide hole 63 leads to in the space that sputum aspirator main part 1, piston 52, baffle pipe 6 constitutes again, because the negative pressure effect of through-hole 2, in this space just also has formed the negative pressure environment, and then make before the sputum is not sucked completely, after the sputum is sucked completely, and then, because when not having the blocking effect of the sputum, and then make the air flow into the body, because the velocity of air is big than the sputum, therefore when the air is intake, in-hole 2's suction force is to sputum aspirator main part 1, piston 52, the space that the negative pressure effect of baffle pipe 6 is blocked down, and even the sputum can be moved down to the negative pressure of the device 2, and thus the sputum absorber is accomplished, and the negative pressure of the space that can be moved down by the baffle pipe 2, and the negative pressure of the sputum aspirator is blocked through-down, the process is accomplished, and the sputum absorber is accomplished, and the device is accomplished, and the down is accomplished, because the negative pressure in this process is accomplished, and the sputum absorber is moved down, and has been blocked, and has been passed down.
In this embodiment, referring to fig. 1 and 2, a connecting hole 11 is formed below the right side of the outer surface of the sputum aspirator main body 1, the through hole 2 is located above the connecting hole 11, an oxygen tube 12 is disposed inside the connecting hole 11, the oxygen tube 12 passes through the connecting hole 11 from outside to inside and extends to the bottom of the inner side of the sputum aspirator main body 1, the resistance to sputum excretion is small due to the small tube diameter of the oxygen tube, a first sealing ring 13 is fixedly disposed at the joint of the oxygen tube 12 and the connecting hole 11, and a breathing port 14 is formed below the left side of the outer surface of the sputum aspirator main body 1.
Through adopting above-mentioned technical scheme, be convenient for install oxygen pipe 12 through connecting hole 11, improve the leakproofness when oxygen pipe 12 connects through first sealing ring 13.
In this embodiment, referring to fig. 1 and 2, a sliding groove 61 is formed in the outer side wall of the baffle tube 6, a sliding block 62 is movably connected to the inner side of the sliding groove 61, and the outer side surface of the sliding block 62 is connected to the bottom of the sleeve 5.
By adopting the above technical scheme, the sliding groove 61 improves the sliding block 62 to improve the stability of the sleeve 5 during moving.
In this embodiment, referring to fig. 2, a mounting hole 3 is formed in the middle of the upper surface of the sputum aspirator main body 1, an adjusting rod 31 is screwed on the inner side of the mounting hole 3, a rotating member 33 is rotatably connected to the bottom of the adjusting rod 31, the rotating member 33 is located inside the sputum aspirator main body 1, the bottom of the rotating member 33 is connected to the upper end of an elastic member 34, and the bottom of the elastic member 34 is connected to the sleeve 5.
By adopting the above technical scheme, the pressure of the elastic member 34 is conveniently adjusted by the adjusting lever 31.
In this embodiment, referring to fig. 1 and 2, a second sealing ring 22 is fixedly arranged at the connection position of the suction tube 21 and the through hole 2, and a third sealing ring 32 is fixedly arranged on both the upper and lower sides of the adjusting rod 31 and the mounting hole 3.
By adopting the above technical scheme, the tightness when the through hole 2 is connected with the suction pipe 21 is improved by the second sealing ring 22, the tightness between the adjusting rod 31 and the mounting hole 3 is improved by the third sealing ring 32, and the tightness when the piston 52 moves is improved by the sealing gasket 32.
In this embodiment, referring to fig. 5, fig. 5 is a front view of a preferred embodiment of the present invention, unlike fig. 2, a first grid baffle 7 is integrally formed at the top of the baffle tube 6, a through slot is provided in the middle of the first grid baffle 7, a push rod 51 is penetrated inside the through slot, a piston 52 is disposed on the push rod 51, a sealing gasket 53 is disposed between the piston 52 and the grid baffle 7, one end of the push rod 51 is connected with a second grid baffle 55, and the area of the second grid baffle 55 is larger and smaller than the cross-sectional area of the baffle tube 6, but the difference is not larger.
However, in fig. 5, a through groove is formed in the middle of the first grid baffle 7, the through groove is larger than the push rod 51 and smaller than the piston 52, the push rod 51 is arranged between the through grooves, when the piston 52 is pushed upwards, the contact area between the piston 52 and the first grid baffle 7 in fig. 5 is smaller than that between the piston and the baffle tube 6 in fig. 2, so that friction force when the piston 52 moves upwards is reduced, and due to the second grid baffle 55, when the air flow is upwards rushed, the force exerted by the piston is not much smaller than that exerted by the piston in fig. 2, and when the piston 52 moves upwards to the through groove, the second grid baffle 55 can contact with the bottommost end of the first grid baffle 7, so that the sensitivity of a product is higher, and the method is better.
Working principle: when the sputum aspirator is used, the sputum aspirator body 1 is arranged on the tracheostomy tube, when a patient has sputum, the patient can cough the sputum, the sputum is cough to the inside of the sputum aspirator body 1, the piston 52 is pushed upwards due to the airflow generated when the patient cough, the blocker 54 is further driven upwards, the suction of the sputum aspirator body 1 is smooth, the sputum in the sputum aspirator body 1 is further sucked away, in the process of sucking the sputum, the sputum aspirator body 1 is provided with the through hole 2, the piston 52 and the baffle tube 6 are in a sealing state, the sliding hole 63 is communicated with the through hole 2, the sliding hole 63 is led to the space formed by the sputum aspirator body 1, the piston 52 and the baffle tube 6, a negative pressure environment is formed in the space due to the negative pressure effect of the through hole 2, so that the piston 52 system can not recover before the sputum is not sucked completely, after the sputum is sucked completely, because there is no certain blocking effect of the sputum, the negative pressure is not released yet, and a large amount of air flows into the sputum suction body through the breathing port 14, because the sputum has viscosity, the flowing speed of the air is much higher than that of the sputum, and a large amount of negative pressure is discharged by the entering of a large amount of air, so that the negative pressure in the space formed by the sputum suction body 1, the piston 52 and the baffle tube 6 is reduced or even eliminated by the negative pressure acting force, the sleeve 5 is pushed by the sleeve 5 to push the piston downwards so as to drive the blocker 54 to move downwards, and the blocker blocks the negative pressure in the through hole, a sputum suction process is completed, the elastic piece 34 is pushed by the adjusting rod 31, the pressure of the elastic piece 34 is changed, the pressure of the elastic piece 34 is conveniently adjusted, the patient is conveniently and better used, and when the patient breathes fast, because the rapid respiratory airflow can push the piston to open the through hole 2 passage, at the moment, sputum suction is not needed, the through hole 2 passage is not opened, so that the pressure of the elastic piece 34 is required to be regulated to be large, the rapid respiratory airflow can not open the through hole passage, and the airflow during coughing is much larger than the rapid respiratory airflow, so that the sputum aspirator can work, if the cough capability of a patient is weak, the pressure of the elastic piece 34 can be regulated to be small when the airflow during possible coughing does not open the through hole 2, and therefore, the sputum aspirator can work, and in a word, medical staff can regulate the pressure of the elastic piece according to the needs of the patient.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Although the invention has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the features of the disclosed embodiments may be combined with each other in any manner so long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of brevity and resource saving. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (4)
1. The utility model provides a novel sputum aspirator, includes sputum aspirator main part (1), its characterized in that: the sputum aspirator comprises a sputum aspirator main body (1), and is characterized in that a baffle tube (6) is fixedly connected to the middle of the inner side wall of the sputum aspirator main body (1), a sliding hole (63) is formed in the middle of the inner side wall of the baffle tube (6) and fixedly connected to the lower side of the outer surface of the sputum aspirator main body (1), a piston (52) is arranged in the baffle tube (6), a push rod (5) is fixedly connected to the middle of the upper surface of the piston (52), a sleeve (5) is fixedly connected to the upper end of the push rod (51), the sleeve (5) is matched with the baffle tube (6), an elastic piece (34) is arranged between the sleeve (5) and the sputum aspirator main body (1), a blocking device (54) is fixedly connected to the bottom of the sleeve (5), a suction tube (21) is fixedly arranged at the port of the through hole (2), the through hole (2) corresponds to the blocking device (54), the blocking device (54) is movably connected to the upper side and the lower side of the sliding hole (63), and the bottom of the blocking device (54) is matched with the through hole (2).
A connecting hole (11) is formed in the lower portion of the right side of the outer surface of the sputum aspirator main body (1), the through hole (2) is located above the connecting hole (11), an oxygen pipe (12) is arranged on the inner side of the connecting hole (11), a first sealing ring (13) is fixedly arranged at the joint of the oxygen pipe (12) and the connecting hole (11), and a breathing port (14) is formed in the lower portion of the left side of the outer surface of the sputum aspirator main body (1);
a sliding groove (61) is formed in the outer side wall of the baffle tube (6), a sliding block (62) is movably connected to the inner side of the sliding groove (61), and the outer side surface of the sliding block (62) is connected with the bottom of the sleeve (5);
the sputum aspirator is characterized in that a mounting hole (3) is formed in the middle of the upper surface of the sputum aspirator body (1), an adjusting rod (31) is connected to the inner side of the mounting hole (3) in a threaded mode, a rotating piece (33) is connected to the bottom of the adjusting rod (31) in a rotating mode, the rotating piece (33) is located in the sputum aspirator body (1), the bottom of the rotating piece (33) is connected with the upper end of an elastic piece (34), and the bottom of the elastic piece (34) is connected with the sleeve (5);
the second sealing rings (22) are fixedly arranged at the joints of the suction pipes (21) and the through holes (2), and the third sealing rings (32) are fixedly arranged on the upper side and the lower side of the adjusting rods (31) and the mounting holes (3).
2. The novel sputum aspirator according to claim 1, wherein: the top integrated into one piece of baffle pipe (6) has first check baffle (7), be provided with logical groove in the middle of first check baffle (7), it has push rod (51) to lead to inslot portion and run through, install piston (52) on push rod (51), just piston (52) with be provided with sealed pad (53) between check baffle (7), the one end of push rod (51) is connected with second check baffle (55).
3. A novel sputum aspirator according to claim 2, wherein: the blocker (54) may be provided on the piston (52) or on the push rod (51).
4. A novel sputum aspirator according to claim 3, wherein: the whole device of the sputum aspirator is made of transparent hard materials.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020102162519 | 2020-03-25 | ||
| CN202010216251 | 2020-03-25 |
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| Publication Number | Publication Date |
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| CN111840668A CN111840668A (en) | 2020-10-30 |
| CN111840668B true CN111840668B (en) | 2023-11-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113041141B (en) * | 2021-02-25 | 2022-08-19 | 深圳智林机器人科技有限公司 | Moxa conveying device capable of adjusting vertical distance of moxa fire |
| CN113926008A (en) * | 2021-11-18 | 2022-01-14 | 刘齐山 | Novel sputum aspirator |
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