CN213312652U - High-frequency jet ventilation tracheal catheter for transtracheal narrow part - Google Patents
High-frequency jet ventilation tracheal catheter for transtracheal narrow part Download PDFInfo
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- CN213312652U CN213312652U CN202020935349.5U CN202020935349U CN213312652U CN 213312652 U CN213312652 U CN 213312652U CN 202020935349 U CN202020935349 U CN 202020935349U CN 213312652 U CN213312652 U CN 213312652U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 74
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 35
- 239000001301 oxygen Substances 0.000 claims abstract description 35
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 33
- 210000003437 trachea Anatomy 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 18
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 9
- 239000001569 carbon dioxide Substances 0.000 abstract description 9
- 230000014759 maintenance of location Effects 0.000 abstract description 5
- 208000031481 Pathologic Constriction Diseases 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000036262 stenosis Effects 0.000 description 8
- 208000037804 stenosis Diseases 0.000 description 8
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 206010002091 Anaesthesia Diseases 0.000 description 4
- 208000000059 Dyspnea Diseases 0.000 description 4
- 206010013975 Dyspnoeas Diseases 0.000 description 4
- 230000037005 anaesthesia Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 208000006601 tracheal stenosis Diseases 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010020591 Hypercapnia Diseases 0.000 description 1
- 206010062575 Muscle contracture Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010038687 Respiratory distress Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000001949 anaesthesia Methods 0.000 description 1
- 210000000621 bronchi Anatomy 0.000 description 1
- 208000006111 contracture Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 210000004704 glottis Anatomy 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 208000013220 shortness of breath Diseases 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses a high-frequency jet ventilation tracheal catheter for a narrow part in a transtracheal, which relates to the technical field of medical instruments and comprises a high-frequency jet ventilation tracheal catheter for a narrow part in a transtracheal, which comprises a deep part, a pipe body and a connecting part which are connected in sequence; the negative pressure pipeline, the high-frequency jet ventilation pipeline and the oxygen supply pipeline are arranged in the pipe body, the outer diameters of the negative pressure pipeline, the high-frequency jet ventilation pipeline and the oxygen supply pipeline are all the same, one end of the negative pressure pipeline penetrates through the connector part and is connected with the negative pressure suction port, one end of the high-frequency jet ventilation pipeline penetrates through the connector part and is connected with the air vent, the oxygen supply efficiency of high-frequency jet ventilation is effectively improved, the concentration of carbon dioxide in the air passage is reduced, oxygen supply is guaranteed, the problem of carbon dioxide retention is solved, the ventilation safety of a patient is greatly improved, a stable air passage can be established for medical staff, and abundant operation time is strived for such as tracheotomy, placement of a tracheal stent and the.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to trachea catheter ventilates is sprayed to narrow department high frequency in transtracheal.
Background
Mechanical injury, scar contracture, intratracheal tumor, foreign body and other causes often lead to the reduction of the airway cross-sectional area, the stenosis of the trachea, the clinical manifestations of shortness of breath and dyspnea, the different degrees of dyspnea, inspiration or expiration dyspnea, or both. Aiming at the tracheal stenosis and the respiratory distress symptom caused by different causes, different treatment means are adopted, but certain time is needed for preparation before treatment and specific treatment measures are implemented. Before receiving effective treatment and during the specific treatment period, the patient is always exposed to the risk of oxygen deficiency asphyxia due to the narrow trachea and insufficient ventilation in breath minutes. Conventional aeration methods include: (1) noninvasive mask ventilation and nasal catheter high-flow oxygen inhalation; (2) positive pressure ventilation of the tracheal intubation: specifically, the method comprises the steps of ventilating over a stenosis or ventilating through the stenosis by using a thin tracheal tube; (3) high-frequency jet ventilation is carried out to the trachea by using a high-frequency jet ventilation respirator. However, the above three methods are all due to the existence of the narrow part, and the ventilation volume cannot ensure that the patient maintains the normal physiological needs. The high-frequency jet ventilation has the advantage that the ventilation is different from that of a conventional anesthesia machine due to the small caliber of the ventilation pipe. The conventional high-frequency jet ventilation mode is high-frequency jet ventilation by guiding a fiberoptic bronchoscope and passing a ventilation tube with small inner diameter and outer diameter through a narrow part of a trachea. However, the presence of stenosis causes poor carbon dioxide excretion, and carbon dioxide retention occurs after a short period of ventilation, which in turn reduces the efficiency of oxygen supply and causes hypoxemia and hypercapnia of different degrees. Moreover, the ventilation efficiency of the anesthesia machine positive pressure ventilation and the high-frequency jet ventilation respirator is difficult to stabilize, and the safety of the anesthesia machine positive pressure ventilation and the high-frequency jet ventilation respirator is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a trachea catheter ventilates is sprayed to narrow department high frequency in trachea effectively improves the oxygen suppliment efficiency that the high frequency was sprayed and is ventilated, reduces carbon dioxide concentration in the air flue simultaneously, both ensures the oxygen supply, has also solved carbon dioxide retention problem, and patient's the security of ventilating obtains promoting by a wide margin.
A high-frequency jet ventilation tracheal catheter through the narrow part in the trachea comprises a deep part, a tube body and a connector part which are connected in sequence;
the negative pressure pipeline, the high-frequency jet ventilation pipeline and the oxygen supply pipeline are all communicated with the deep part.
Preferably, go deep into the portion including semicircle pipe one, semicircle pipe two and baffle, the diameter of semicircle pipe one and semicircle pipe two is the same and is less than the body internal diameter, the semicircle pipe one constitutes the circular tube with two integrated into one piece of semicircle pipe, the baffle is located between semicircle pipe one and the semicircle pipe two, semicircle pipe one encloses into air duct one with the baffle, air duct one and negative pressure pipeline intercommunication, semicircle pipe two encloses into air duct two with the baffle, air duct two and oxygen supply pipeline intercommunication, baffle axis position sets up air duct three in the baffle, air duct three and high frequency jet air duct intercommunication, the length relation of each air duct is: the third air duct is larger than the second air duct and the first air duct.
Preferably, the deep part is connected with the pipe body through a connecting piece, and the connecting piece is conical.
Preferably, the connecting piece comprises three mutually independent channels, wherein the channel I is connected with the first air duct and the negative pressure pipeline, the channel II is connected with the second air duct and the oxygen supply pipeline, and the channel III is connected with the third air duct and the high-frequency injection ventilation pipeline.
Preferably, a plurality of vent holes are circumferentially formed in one end, away from the pipe body, of the first semicircular pipe and the second semicircular pipe.
Preferably, the third air duct, the first semicircular tube and the second semicircular tube are of a double-layer structure, the inner layer is a metal layer, and the outer layer is a silica gel layer.
Preferably, the body is bilayer structure, and the inlayer is silica gel, and the skin is the PP material.
Preferably, the outer diameter of the pipe body is 10-15 mm.
Preferably, the outer diameter of the penetrating part is 4-8 mm.
Preferably, a cuff is arranged at the outer part of one end of the tube body close to the deep part, an inflation inlet is arranged at one end close to the connecting part, the cuff is communicated with the inflation inlet through an inflation pipeline, and the inflation pipeline is arranged in the tube body.
The beneficial effects of the utility model are embodied in:
(1) the utility model effectively improves the oxygen supply efficiency of high-frequency jet ventilation, reduces the concentration of carbon dioxide in the air passage, ensures the supply of oxygen, solves the problem of carbon dioxide retention, greatly improves the ventilation safety of patients, and can strive for more abundant operation time for establishing stable air passages (such as tracheotomy, placing tracheal brackets and the like) for medical staff;
(2) the utility model discloses can be adapted to have obviously narrow in the trachea, need promptly carry out the patient of supplementary ventilation, it is effective to relieving the life threat that the trachea is narrow to be sent, and easy operation, breathe scope doctor, anaesthesia doctor through the skilled grasp of simple system training homoenergetic, can produce certain economic benefits, market perspective is great.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of a high-frequency jet ventilation endotracheal tube through a narrow endotracheal tube according to an embodiment of the present invention;
FIG. 2 is a front view of the high frequency jet ventilation endotracheal tube shown in FIG. 1 through an endotracheal stenosis;
FIG. 3 is a cross-sectional view of the high frequency jet ventilation endotracheal tube shown in FIG. 2 through an endotracheal stenosis;
FIG. 4 is an enlarged schematic view of the high frequency jet ventilation endotracheal tube shown in FIG. 1 at point A through the endotracheal narrowing;
FIG. 5 is a B-B cross-sectional view of the high frequency jet ventilation endotracheal tube shown in FIG. 2 through the endotracheal stenosis;
FIG. 6 is a C-C cross-sectional view of the high frequency jet ventilation endotracheal tube shown in FIG. 2 through the endotracheal stenosis;
fig. 7 is a diagram illustrating a state of use of the high frequency jet ventilation endotracheal tube through a narrowed portion in the trachea according to an embodiment of the present invention;
in the attached figure, 1-deep part, 2-tube body, 3-interface part, 4-negative pressure pipeline, 5-high frequency jet ventilation pipeline, 6-oxygen supply pipeline, 7-semi-circle pipe I, 8-semi-circle pipe II, 9-clapboard, 10-air duct I, 11-air duct II, 12-air duct III, 13-connecting piece, 14-channel I, 15-channel II, 16-channel III, 17-ventilation hole, 18-cuff, 19-inflation port, 20-inflation pipeline, 21-negative pressure suction port, 22-ventilation port and 23-oxygen supply port.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
Example 1
As shown in fig. 1-6, a high-frequency jet ventilation tracheal catheter through the narrow part in the trachea comprises a deep part 1, a tube body 2 and a connecting part 3 which are connected in sequence; the tube body 2 is of a double-layer structure, the inner layer is silica gel, the outer layer is made of PP material, the outer diameter of the tube body 2 is 10-15mm, the outer diameter of the deep part is 4-8mm, and the material of the interface part 3 has no special requirement;
a negative pressure pipeline 4, a high-frequency jet ventilation pipeline 5 and an oxygen supply pipeline 6 with uniform outer and inner diameters are arranged in the pipe body 2, one end of the negative pressure pipeline 4 penetrates through the connector part 3 to be connected with the negative pressure suction port 21, one end of the high-frequency jet ventilation pipeline 5 penetrates through the connector part 3 to be connected with the ventilation port 22, one end of the oxygen supply pipeline 6 penetrates through the connector part 3 to be connected with the oxygen supply port 23, and the negative pressure pipeline 4, the high-frequency jet ventilation pipeline 5 and the oxygen supply pipeline 6 are respectively communicated with the deep parts;
deep portion 1 includes semicircle pipe one 7, semicircle pipe two 8 and baffle 9, semicircle pipe one 7 is the same with the diameter of semicircle pipe two 8 and is less than 2 internal diameters of body, semicircle pipe one 7 constitutes the circular duct with semicircle pipe two 8 integrated into one piece, baffle 9 is located between semicircle pipe one 7 and the semicircle pipe two 8, semicircle pipe one 7 encloses into air duct one 10 with baffle 9, air duct one 10 and negative pressure pipeline 4 intercommunication, semicircle pipe two 8 and baffle 9 enclose into air duct two 11, air duct two 11 and oxygen supply pipeline 6 intercommunication, baffle 9 axis position sets up air duct three 12, air duct three 12 and high-frequency jet air duct 5 intercommunication, the length relation of each air duct is: the third air duct 12 is larger than the second air duct 11 is larger than the first air duct 10.
The first and second semicircular tubes 7 and 8 of the present embodiment have the same diameter and are smaller than the inner diameter of the tube body 2, and such a structure is advantageous for the high-frequency jet ventilation of the penetrating portion 1 through the tracheal stenosis.
The deep part 1 is connected with the pipe body 2 through a connecting piece 13, the connecting piece 13 is conical, the connecting piece 13 comprises three mutually independent channels, wherein a channel I14 is connected with a gas guide pipe I10 and the negative pressure pipeline 4, a channel II 15 is connected with a gas guide pipe II 11 and the oxygen supply pipeline 6, and a channel III 16 is connected with a gas guide pipe III 12 and the high-frequency injection ventilation pipeline 5.
The negative pressure suction port 21, the negative pressure pipeline 4, the first channel 14 and the first air duct 10 form a negative pressure passage, so that mixed gas in the air duct can be sucked, and the function of 'breathing' similar to a respiratory motion cycle is realized; the air vent 22, the high-frequency injection ventilation pipeline 5, the third channel 16 and the third air duct 12 form a high-frequency injection ventilation passage which can play a role in high-frequency injection ventilation; the oxygen supply port 23, the oxygen supply pipeline 6, the second channel 15 and the second air duct 11 form an oxygen supply channel, so that oxygen can be supplied to the sleeve, and the high-frequency jet aeration oxygenation effect is enhanced.
Because the length relation of each air duct is as follows: the air duct III 12 is larger than the air duct II 11 is larger than the air duct I10, namely the high-frequency injection ventilation channel is the longest, the oxygen supply channel is the next, and the negative pressure channel is the most extreme.
The using method of the embodiment comprises the following steps:
(1) the fiber bronchoscope enters the trachea through the mouth and the glottis, and the visual field exposes the narrow part of the trachea;
(2) the guide steel wire passes through the operation hole of the fiber bronchoscope, so that the front end of the guide steel wire passes through the narrow part and then exits from the fiber bronchoscope, and the state that the front end of the guide steel wire passes through the narrow part of the trachea is kept; the front end of the preferred guide steel wire is of a nondestructive soft spring structure, the diameter of the preferred guide steel wire is 1mm, and the length of the preferred guide steel wire is 1500 mm;
(3) sleeving the air duct III 12 into the tail end of the guide steel wire, and pushing the whole catheter into the trachea along the guide steel wire until the deep part 1 of the catheter passes through the narrow part of the trachea as shown in fig. 7;
(4) the negative pressure suction port 21, the vent 22 and the oxygen supply port 23 are respectively connected with a negative pressure suction valve, a high-frequency jet ventilation respirator and an oxygen supply valve; the preferable oxygen supply amount is 2-8L/min, and the negative pressure suction amount is 4-6L/min.
Example 2
As shown in fig. 4 and 6, in this embodiment, on the basis of embodiment 1, further, a plurality of vent holes 17 are circumferentially formed in both ends of the first semicircular tube 7 and the second semicircular tube 8, which are away from the tube body 2, the vent holes 17 are used for preventing the partial or total blockage of the first air guide tube 10 and the second air guide tube 11 from causing insufficient ventilation, and the ventilation volume can be effectively increased by arranging the vent holes 17.
Preferably, the third air duct 12, the first semicircular tube 7 and the second semicircular tube 8 are of double-layer structures, the inner layer of the double-layer structure is a metal layer, the outer layer of the double-layer structure is a silica gel layer, the thickness of the metal layer and the thickness of the silica gel layer are both 0.2mm, and the structure with hard inner part and soft outer part is not only beneficial to passing through narrow parts, but also does not damage tissues.
Example 3
As shown in fig. 1-3, in this embodiment, based on embodiment 1, further, a cuff 18 is disposed outside an end of the tube body 2 close to the deep portion 1, an inflation inlet 19 is disposed at an end close to the connecting portion 3, the cuff 18 and the inflation inlet 19 are communicated through an inflation pipe 20, and the inflation pipe 20 is disposed inside the tube body 2; the cuff 18 is annularly extruded to the tracheal wall after being inflated, the catheter can be effectively fixed by the characteristics of high volume and low pressure, the tubules are prevented from being released from the narrow part, and meanwhile, the far end of the cuff 18 is caused to form a relatively closed space, namely a ventilation space formed by the lung, each bronchus and the trachea bulge to the tracheal narrow part, so that the ventilation efficiency is more efficient, the problem of carbon dioxide retention is solved more effectively, and meanwhile, the respiratory airflow can be prevented from overflowing to pollute the air of a diagnosis room.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. A high-frequency jet ventilation tracheal catheter through a narrow part in a trachea is characterized in that: comprises a deep part (1), a pipe body (2) and an interface part (3) which are connected in sequence;
the pipe body (2) is internally provided with a negative pressure pipeline (4), a high-frequency jet ventilation pipeline (5) and an oxygen supply pipeline (6) with the same outer and inner diameters, one end of the negative pressure pipeline (4) penetrates through the connector part (3) to be connected with the negative pressure suction port (21), one end of the high-frequency jet ventilation pipeline (5) penetrates through the connector part (3) to be connected with the vent (22), one end of the oxygen supply pipeline (6) penetrates through the connector part (3) to be connected with the oxygen supply port (23), and the negative pressure pipeline (4), the high-frequency jet ventilation pipeline (5) and the oxygen supply pipeline (6) are communicated with the deep part (1).
2. The high-frequency jet ventilation endotracheal tube according to claim 1, characterized in that: the deep part (1) comprises a first semicircular pipe (7), a second semicircular pipe (8) and a partition plate (9), the diameter of the first half-round pipe (7) and the second half-round pipe (8) is the same and is smaller than the inner diameter of the pipe body (2), the first half-round pipe (7) and the second half-round pipe (8) are integrally formed into a round pipe, the baffle plate (9) is arranged between the first semicircular pipe (7) and the second semicircular pipe (8), the first semicircular pipe (7) and the partition plate (9) enclose a first air duct (10), the first air duct (10) is communicated with the negative pressure pipeline (4), the second semicircular pipe (8) and the partition plate (9) enclose a second air duct (11), the second air duct (11) is communicated with the oxygen supply pipeline (6), the third air duct (12) is arranged at the axis position in the clapboard (9), the third air duct (12) is communicated with the high-frequency jet ventilation pipeline (5), and the length relationship of each air duct is as follows: the third (12) is greater than the second (11) and the first (10) is greater than the air duct.
3. The high-frequency jet ventilation endotracheal tube according to claim 1, characterized in that: the deep part (1) is connected with the pipe body (2) through a connecting piece (13), and the connecting piece (13) is conical.
4. The high-frequency jet ventilation endotracheal tube according to claim 3, characterized in that: the connecting piece (13) comprises three mutually independent channels, wherein a channel I (14) is connected with a gas guide tube I (10) and the negative pressure pipeline (4), a channel II (15) is connected with a gas guide tube II (11) and the oxygen supply pipeline (6), and a channel III (16) is connected with a gas guide tube III (12) and the high-frequency jet ventilation pipeline (5).
5. The high-frequency jet ventilation endotracheal tube according to claim 2, characterized in that: and a plurality of vent holes (17) are formed in the circumferential direction of one end of the first semicircular pipe (7) and one end of the second semicircular pipe (8) far away from the pipe body (2).
6. The high-frequency jet ventilation endotracheal tube according to claim 2, characterized in that: the third air duct (12), the first semicircular tube (7) and the second semicircular tube (8) are of double-layer structures, the inner layer is a metal layer, and the outer layer is a silica gel layer.
7. The high-frequency jet ventilation endotracheal tube according to claim 1, characterized in that: the pipe body (2) is of a double-layer structure, the inner layer is silica gel, and the outer layer is made of PP materials.
8. The high-frequency jet ventilation endotracheal tube according to claim 7, characterized in that: the outer diameter of the pipe body (2) is 10-15 mm.
9. The high-frequency jet ventilation endotracheal tube according to claim 2, characterized in that: the outer diameter of the deep part (1) is 4-8 mm.
10. The high-frequency jet ventilation endotracheal tube according to claim 1, characterized in that: the external part of one end of the tube body (2) close to the deep part (1) is provided with a cuff (18), one end close to the connecting part (3) is provided with an inflating opening (19), the cuff (18) is communicated with the inflating opening (19) through an inflating pipeline (20), and the inflating pipeline (20) is arranged inside the tube body (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020935349.5U CN213312652U (en) | 2020-05-28 | 2020-05-28 | High-frequency jet ventilation tracheal catheter for transtracheal narrow part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020935349.5U CN213312652U (en) | 2020-05-28 | 2020-05-28 | High-frequency jet ventilation tracheal catheter for transtracheal narrow part |
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| CN213312652U true CN213312652U (en) | 2021-06-01 |
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| CN202020935349.5U Active CN213312652U (en) | 2020-05-28 | 2020-05-28 | High-frequency jet ventilation tracheal catheter for transtracheal narrow part |
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Effective date of registration: 20231114 Address after: 361000 No. 566 Shengguang Road, Jimei District, Xiamen City, Fujian Province Patentee after: The Second Affiliated Hospital of Xiamen medical College Address before: No.27, pengcuobucuoli, Xindian Town, Xiang'an District, Xiamen City, Fujian Province, 361101 Patentee before: Peng Jianliang |