CN211357280U - Tracheal catheter capable of monitoring cuff pressure in real time and facilitating fixation - Google Patents
Tracheal catheter capable of monitoring cuff pressure in real time and facilitating fixation Download PDFInfo
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- CN211357280U CN211357280U CN201921822576.0U CN201921822576U CN211357280U CN 211357280 U CN211357280 U CN 211357280U CN 201921822576 U CN201921822576 U CN 201921822576U CN 211357280 U CN211357280 U CN 211357280U
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- 238000012544 monitoring process Methods 0.000 title claims description 17
- 238000012806 monitoring device Methods 0.000 claims abstract description 22
- 210000000056 organ Anatomy 0.000 claims description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 23
- 238000002627 tracheal intubation Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
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- 238000005399 mechanical ventilation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- 210000003437 trachea Anatomy 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 206010013952 Dysphonia Diseases 0.000 description 1
- 208000010473 Hoarseness Diseases 0.000 description 1
- 206010068319 Oropharyngeal pain Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 201000007100 Pharyngitis Diseases 0.000 description 1
- 206010044310 Tracheo-oesophageal fistula Diseases 0.000 description 1
- 208000005864 Tracheoesophageal Fistula Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 208000016274 isolated tracheo-esophageal fistula Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 230000017074 necrotic cell death Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The utility model provides a tracheal catheter which can monitor the pressure of a cuff in real time and is convenient to fix, comprising a catheter body, the cuff, an inflation tube, a pressure monitoring device and a fixed bite-block, wherein the cuff is sleeved on the catheter body, the inflation tube is communicated with the cuff, the pressure monitoring device is fixed at one end of the inflation tube, and the fixed bite-block is detachably fixed on the tracheal catheter; the pressure monitoring device comprises a pressure sensor, a control module, a display screen and a buzzer, the display screen and the buzzer are electrically connected with the control module, the pressure sensor is fixed on the inner wall of the cuff and is electrically connected with the control module through a wire, and the wire is arranged in the cuff and the inflation tube in a penetrating mode. The utility model discloses can in time carry out real-time supervision to the change of cuff pressure, surpass normal range and just send the warning, remind medical personnel in time to handle, and can realize endotracheal tube's effective fixed, prevent endotracheal tube activity to guarantee patient's air flue management safety.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a fixed endotracheal tube of ability real-time supervision cuff pressure and being convenient for.
Background
During mechanical ventilation, the cuff of the tracheal catheter can play a role in closing a respiratory tract and fixing the catheter, and can prevent oral secretion and gastric contents from reversely flowing and being sucked into the trachea, so that the ventilation quality is improved, and pulmonary complications are reduced. The pressure of the catheter cuff is too low to effectively seal the airway, so that the effective positive pressure mechanical ventilation effect is influenced, and the occurrence of aspiration is increased, so that the incidence rate of postoperative pulmonary complications is obviously increased; the pressure of the catheter cuff is too high, the catheter cuff presses the tracheal wall, a series of complications such as compressed local tracheal mucosa ischemia, necrosis and the like are caused, and the serious patients can cause the tracheoesophageal fistula. After the tracheal tube is pulled out, cough, hoarseness, sore throat and even airway stenosis are often complicated, so that the maintenance of proper cuff pressure of the tracheal tube is very important. The cuff pressure of the tracheal catheter is changed along with the change of body positions, operation operations, anesthesia depth and other factors, if the change is not found in time, the potential safety hazard of an airway can be caused, and therefore, a clinician or a nurse can find the change of the cuff pressure in time to be very important.
At present, the common clinical pressure gauge is used for monitoring the cuff pressure, the cuff pressure is often measured manually, the labor and the time are wasted, and the device can not provide cuff pressure change information for clinicians or nurses instantly, so that the potential safety hazard is great.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a can real-time supervision cuff pressure and be convenient for fixed endotracheal tube can in time carry out real-time supervision to the change of cuff pressure, surpasss alarm threshold value and can in time report to the police, reminds clinician or nurse in time to handle, guarantees patient's air flue management safety.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a can real-time supervision cuff pressure and be convenient for fixed endotracheal tube, includes pipe body, cuff, gas tube, pressure monitoring device and fixed bite-block, the cuff suit is in on the pipe body, the gas tube with cuff a body coupling and intercommunication, the gas tube is close to the lateral wall of the one end of cuff with pipe body lateral wall a body coupling, the gas tube is kept away from the one end of cuff with the pipe body separation, pressure monitoring device fixes the gas tube is kept away from the one end of cuff, fixed bite-block detachably fixes on the endotracheal tube.
Pressure monitoring devices includes pressure sensor, control module, display screen and bee calling organ, the display screen with bee calling organ all fixes control module is last and with control module electric connection, pressure sensor fixes on the inner wall of cuff, pressure sensor pass through the wire with control module electric connection, the wire is worn to establish cuff and in the gas tube, the wire is kept away from pressure sensor's one end is worn out the gas tube and with control module fixed connection.
Preferably, one end, far away from the cuff, of the inflation tube is integrally connected with an indicating air bag, one end, far away from the cuff, of the indicating air bag is integrally connected with an inflation inlet, the pressure monitoring device is fixed on the inflation inlet, the lead penetrates through the indicating air bag and penetrates through the side wall of the inflation inlet and is fixedly connected with the control module, and the lead penetrates out of the side wall of the inflation inlet to be sealed.
Preferably, an inflation and deflation valve is fixedly arranged on the inflation port.
Preferably, the inner wall of the catheter body is uniformly coiled and embedded with a spiral guide wire.
Preferably, the pipe body includes relative head end and tail end, the head end is convex structure, tail end body coupling has the breathing machine link.
Preferably, the head end is wedge-shaped.
Preferably, fixed bite-block middle part is equipped with pipe fixed orifices and gas tube fixed orifices side by side, the pipe body is worn to establish in the pipe fixed orifices, the gas tube is worn to establish in the gas tube fixed orifices, fixed bite-block is including last bite-block and the lower bite-block that can dismantle the concatenation, the pipe fixed orifices with the gas tube fixed orifices is in go up the bite-block with the bite-block is divided equally into two respectively when tearing down.
Preferably, go up the bite-block right side and be equipped with first fixed orifices, the first fixed orifices internal fixation is tied up and be tied up first bandage, lower bite-block left side is equipped with the second fixed orifices, the second fixed orifices internal fixation is tied up and be tied up the second bandage.
Preferably, the cuff is a deformable ultra-thin elastic membrane.
Compared with the prior art, the beneficial effects of the utility model are that: the pressure monitoring device is arranged, so that the air pressure in the cuff can be monitored and displayed in real time, and the buzzer can be triggered to alarm when the pressure in the cuff is higher than or lower than a preset range, so that clinical medical personnel can be reminded to process in time, the airway management safety of a patient is ensured, and the safety of the tracheal intubation is greatly improved; the arrangement of the fixed bite block can effectively fix the tracheal catheter during the tracheal intubation, avoid the tracheal catheter from excessively penetrating deeply or slipping outwards, and ensure the expected effect of the tracheal intubation; in addition, the catheter fixing hole and the inflation tube fixing hole on the fixed bite block can effectively protect the catheter body and the inflation tube from being bitten by the teeth of a patient, and the sealing performance and the service life of each tube body of the tracheal catheter are guaranteed.
Drawings
Fig. 1 is a schematic view of the whole structure of the endotracheal tube capable of monitoring the cuff pressure in real time and facilitating the fixation of the cuff.
Fig. 2 is a schematic circuit diagram of the pressure monitoring device of the endotracheal tube capable of monitoring the cuff pressure in real time and facilitating the fixation of the cuff pressure.
Fig. 3 is a front view of a fixed bite block of an endotracheal tube capable of monitoring a cuff pressure in real time and facilitating fixation according to the present invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Please refer to fig. 1, fig. 2 and fig. 3 in combination, fig. 1 is a schematic diagram of an overall structure of the endotracheal tube capable of monitoring the cuff pressure in real time and facilitating the fixing, fig. 2 is a schematic circuit diagram of a pressure monitoring device of the endotracheal tube capable of monitoring the cuff pressure in real time and facilitating the fixing, and fig. 3 is a front view of a fixed bite block of the endotracheal tube capable of monitoring the cuff pressure in real time and facilitating the fixing.
As shown in figure 1, the utility model discloses a can 2 pressures of real-time supervision cuff and be convenient for fixed endotracheal tube of embodiment, including pipe body 1, cuff 2, gas tube 3, pressure monitoring device 4 and fixed bite- block 5, 2 integrative suits of cuff are on pipe body 1 lateral wall, gas tube 3 and cuff 2 body coupling and intercommunication, the lateral wall and pipe body 1 lateral wall body coupling of the one end that gas tube 3 is close to cuff 2, the one end and the pipe body 1 separation of cuff 2 are kept away from to gas tube 3, pressure monitoring device 4 fixes the one end that gas tube 3 kept away from cuff 2, fixed bite-block 5 detachably fixes on endotracheal tube.
As shown in fig. 1 and 2, the pressure monitoring device 4 includes a pressure sensor 41, a control module 42, a display screen 43 and a buzzer 44, the display screen 43 and the buzzer 44 are both fixed on the control module 42 and electrically connected to the control module 42, the pressure sensor 41 is fixed on the inner wall of the cuff 2, the pressure sensor 41 is electrically connected to the control module 42 through a conducting wire 46, the conducting wire 46 is inserted into the cuff 2 and the inflation tube 3, and one end of the conducting wire 46 far away from the pressure sensor 41 penetrates through the inflation tube 3 and is fixedly connected to the control module 42. The outer side of the conducting wire 46 is wrapped with an insulating layer, and the joints between the two ends of the conducting wire and the pressure sensor 41 and the control module 42 are also insulated to prevent electric leakage. The control module 42 is also welded with a power module 45, and the power module 45 is electrically connected with the control module 42 and respectively supplies power to the pressure sensor 41, the display screen 43 and the buzzer 44 after the voltage transformation of the control module 42; the power module 45 is a button cell, and is small in size and convenient to disassemble and assemble. The pressure monitoring device 4 is detachably clamped on the inflation tube 3, and the pressure monitoring device 4 can be recycled by disconnecting the pressure monitoring device from the lead 46, so that the medical cost can be greatly reduced.
The utility model relates to a tracheal catheter, when realizing tracheal catheter's normal function, can convenient and fast ground real-time supervision cuff 2 interior pressure value again, ensure that cuff 2 pressure is in normal condition, effectively protect patient's air flue healthy, reduce the production of other complications. The normal range of the pressure value in the cuff 2 is usually preset in the control module 42, the display screen 43 is used for displaying the real-time pressure value in the cuff 2, the buzzer 44 is used for generating an audible alarm when the pressure value in the cuff 2 exceeds the normal range, and the buzzer 44 can give an audible alarm to remind clinical medical staff to process in time when the pressure value in the cuff 2 is higher than or lower than the normal range. In addition, when can real-time supervision 2 internal pressure values of cover bag, endotracheal tube can also play good fixed effect through fixed bite-block 5, effectively protects pipe body 1 and gas tube 3, avoids gas tube 3 to be bitten broken and leads to 2 gas leakage of cover bag.
As shown in figure 1, preferably, one end of the inflation tube 3 far away from the cuff 2 is integrally connected with an indicating air cell 31, one end of the indicating air cell 31 far away from the cuff 2 is integrally connected with an inflation port 32, and the setting of the indicating air cell 31 is used for indicating that the cuff 2 is in an inflated state, so that the observation of medical staff is facilitated. The pressure monitoring device 4 is fixed on the inflation inlet 32, the lead 46 passes through the indicating air bag 31 and passes through the side wall of the inflation inlet 32 to be fixedly connected with the control module 42, and the lead 46 penetrates out of the side wall of the inflation inlet 32 to be sealed, so that the air leakage of the part where the lead 46 penetrates out is avoided.
As shown in fig. 1, preferably, the inflation inlet 32 is fixedly provided with an inflation/deflation valve 33 for closing and sealing the inflation tube 3 after the endotracheal tube is inserted and the cuff 2 is inflated with sufficient gas, so as to prevent the gas in the cuff 2 from overflowing; or when the tracheal catheter needs to be pulled out, the inflation and deflation valve 33 is opened to firstly discharge the gas in the cuff 2, so that the tracheal catheter can be pulled out smoothly.
As shown in fig. 1, preferably, the inner wall of the catheter body 1 is uniformly coiled and embedded with the spiral guide wire 11, so that the bending capability of the endotracheal tube is not affected, and meanwhile, the plasticity of the endotracheal tube is effectively increased, and the endotracheal tube can be conveniently placed into an airway.
As shown in fig. 1, preferably, the catheter body 1 includes opposite head end 12 and tail end 13, the head end 12 is of a circular arc structure, so as to avoid scratching the airway wall of the patient when the catheter body 1 is inserted into the airway of the patient; the tail end 13 is integrally connected with a connecting end of a breathing machine for connecting an external breathing machine after the tracheal catheter is placed in, thereby oxygen is delivered to a patient.
As shown in fig. 1, the tip 12 is preferably wedge-shaped so that the end of the catheter body 1 is gradually thinner and thicker to facilitate insertion of the catheter body 1 into the airway.
As shown in fig. 1 and 3, preferably, the middle of the fixed bite block 5 is provided with a catheter fixing hole 51 and an inflation tube fixing hole 52 side by side, the catheter body 1 is inserted into the catheter fixing hole 51, the inflation tube 3 is inserted into the inflation tube fixing hole 52, the fixed bite block 5 comprises an upper bite block 53 and a lower bite block 54 which are detachably spliced, the catheter fixing hole 51 and the inflation tube fixing hole 52 are respectively divided into two by half transversely when the upper bite block 53 and the lower bite block 54 are detached, that is, half of the catheter fixing hole 51 and half of the inflation tube fixing hole 52 are respectively on the upper bite block 53, and half of the catheter fixing hole 51 and half of the inflation tube fixing hole 52 are on the lower bite block 54. Usually, a fixing pin hole is formed in the upper bite block 53, a fixing pin is formed in the lower bite block 54, and when the upper bite block 53 and the lower bite block 54 are joined, the fixing pin is inserted into the fixing pin hole, so that the upper bite block 53 and the lower bite block 54 are connected and fixed. The catheter fixing hole 51 is used for fixing the catheter body 1 in a protecting mode, and the inflation tube fixing hole 52 is used for fixing and protecting the inflation tube 3, so that after the tracheal catheter is successfully placed into the catheter, the tracheal catheter can be fixed at a preset position, the tracheal catheter is prevented from moving due to the movement of a patient, and the tracheal catheter is prevented from drawing the airway of the patient. Go up the structure that bite-block 53 can dismantle the separation with bite-block 54 down, can put into the degree of depth according to endotracheal tube, confirm the fixed position of fixed bite-block 5 wantonly, improved the suitability of fixed bite-block 5.
As shown in fig. 3, preferably, the upper bite block 53 is provided at the right side thereof with a first fixing hole 55, a first band 57 is fixedly bound in the first fixing hole 55, a second fixing hole 56 is provided at the left side of the lower bite block 54, and a second band 58 is fixedly bound in the second fixing hole 56. After the upper bite block 53 and the lower bite block 54 are connected and fixed, the first bandage 57 and the second bandage 58 are fastened and fixed after the patient's face passes around the brain, so that the fixing of the fixed bite block 5 can be realized, and the tracheal catheter can be fixed.
Preferably, the cuff 2 is a deformable ultrathin elastic film, so that the cuff 2 is guaranteed to have enough softness and occupy a small enough space when not inflated, the tracheal catheter can be conveniently placed into the cuff, and when the cuff 2 is inflated, the cuff 2 has good elasticity, so that the cuff can be supported to be large enough under the action of gas, and the requirement of the tracheal catheter on the cuff 2 is met.
From the above, the utility model discloses a can real-time supervision cuff pressure and tracheal catheter convenient to fix, through setting up pressure monitoring device, can real-time supervision and show the atmospheric pressure in the cuff, pressure is higher than or be less than the predetermined scope in the cuff will trigger bee calling organ and report to the police, reminds clinical medical personnel to handle in time, guarantees patient's air flue management safety, has greatly improved the security of trachea intubation art; the arrangement of the fixed bite block can effectively fix the tracheal catheter during the tracheal intubation, avoid the tracheal catheter from excessively penetrating deeply or slipping outwards, and ensure the expected effect of the tracheal intubation; in addition, the catheter fixing hole and the inflation tube fixing hole on the fixed bite block can effectively protect the catheter body and the inflation tube from being bitten by the teeth of a patient, and the sealing performance and the service life of each tube body of the tracheal catheter are guaranteed.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (9)
1. The utility model provides a can real-time supervision cuff pressure and be convenient for fixed endotracheal tube which characterized in that: the tracheal catheter comprises a catheter body, a cuff, an inflation tube, a pressure monitoring device and a fixed tooth cushion, wherein the cuff is sleeved on the catheter body, the inflation tube is integrally connected and communicated with the cuff, the side wall of one end, close to the cuff, of the inflation tube is integrally connected with the side wall of the catheter body, one end, far away from the cuff, of the inflation tube is separated from the catheter body, the pressure monitoring device is fixed at one end, far away from the cuff, of the inflation tube, and the fixed tooth cushion is detachably fixed on the tracheal catheter;
pressure monitoring devices includes pressure sensor, control module, display screen and bee calling organ, the display screen with bee calling organ all fixes control module is last and with control module electric connection, pressure sensor fixes on the inner wall of cuff, pressure sensor pass through the wire with control module electric connection, the wire is worn to establish cuff and in the gas tube, the wire is kept away from pressure sensor's one end is worn out the gas tube and with control module fixed connection.
2. An endotracheal tube capable of real time monitoring of cuff pressure and facilitating securement as recited in claim 1, wherein: one end of the inflation tube, far away from the cuff, is integrally connected with an indicating air bag, one end of the indicating air bag, far away from the cuff, is integrally connected with an inflation inlet, the pressure monitoring device is fixed on the inflation inlet, the lead penetrates through the indicating air bag and penetrates through the side wall of the inflation inlet and is fixedly connected with the control module, and the lead penetrates out of the side wall of the inflation inlet to be sealed.
3. An endotracheal tube capable of real time monitoring of cuff pressure and facilitating securement as recited in claim 2, wherein: and an inflation and deflation valve is fixedly arranged on the inflation inlet.
4. An endotracheal tube capable of real time monitoring of cuff pressure and facilitating securement as recited in claim 1, wherein: spiral guide wires are uniformly coiled and embedded in the inner wall of the catheter body.
5. An endotracheal tube capable of real time monitoring of cuff pressure and facilitating securement as recited in claim 1, wherein: the pipe body includes relative head end and tail end, the head end is convex structure, tail end an organic whole is connected with the breathing machine link.
6. An endotracheal tube capable of real time monitoring of cuff pressure and facilitating securement as recited in claim 5, wherein: the head end is wedge-shaped.
7. An endotracheal tube capable of real time monitoring of cuff pressure and facilitating securement as recited in claim 1, wherein: the utility model discloses a tooth pad, including fixed bite-block, pipe body, inflation tube, pipe fixed orifices, inflation tube fixed orifices, fixed bite-block middle part is equipped with pipe fixed orifices and inflation tube fixed orifices side by side, the pipe body is worn to establish in the pipe fixed orifices, the inflation tube is worn to establish in the inflation tube fixed orifices, fixed bite-block is including last bite-block and the bite-block down that can dismantle the concatenation, the pipe fixed orifices with the inflation tube fixed orifices is in go up the bite-block with the bite-block is divided into two by the equalling respectively.
8. An endotracheal tube capable of real time monitoring of cuff pressure and facilitating securement as recited in claim 7, wherein: go up the bite-block right side and be equipped with first fixed orifices, first fixed orifices internal fixation is tied up and be had first bandage, lower bite-block left side is equipped with the second fixed orifices, the second fixed orifices internal fixation is tied up and be had the second bandage.
9. An endotracheal tube capable of real time monitoring of cuff pressure and facilitating securement as recited in claim 1, wherein: the cuff is a deformable ultrathin elastic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921822576.0U CN211357280U (en) | 2019-10-28 | 2019-10-28 | Tracheal catheter capable of monitoring cuff pressure in real time and facilitating fixation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921822576.0U CN211357280U (en) | 2019-10-28 | 2019-10-28 | Tracheal catheter capable of monitoring cuff pressure in real time and facilitating fixation |
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| CN211357280U true CN211357280U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921822576.0U Expired - Fee Related CN211357280U (en) | 2019-10-28 | 2019-10-28 | Tracheal catheter capable of monitoring cuff pressure in real time and facilitating fixation |
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| CN (1) | CN211357280U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156306A (en) * | 2020-09-10 | 2021-01-01 | 西安交通大学 | Trachea cannula for monitoring cuff pressure in real time |
| CN112156305A (en) * | 2020-09-10 | 2021-01-01 | 西安交通大学 | Trachea cannula with cuff pressure automatic monitoring device |
| CN112781778A (en) * | 2021-01-29 | 2021-05-11 | 常州市第一人民医院 | Tracheal cuff monitoring device |
| CN113020146A (en) * | 2021-03-02 | 2021-06-25 | 首都医科大学附属北京儿童医院 | Tracheal cannula's cleaning device |
-
2019
- 2019-10-28 CN CN201921822576.0U patent/CN211357280U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156306A (en) * | 2020-09-10 | 2021-01-01 | 西安交通大学 | Trachea cannula for monitoring cuff pressure in real time |
| CN112156305A (en) * | 2020-09-10 | 2021-01-01 | 西安交通大学 | Trachea cannula with cuff pressure automatic monitoring device |
| CN112781778A (en) * | 2021-01-29 | 2021-05-11 | 常州市第一人民医院 | Tracheal cuff monitoring device |
| CN112781778B (en) * | 2021-01-29 | 2021-08-27 | 常州市第一人民医院 | Tracheal cuff monitoring device |
| CN113020146A (en) * | 2021-03-02 | 2021-06-25 | 首都医科大学附属北京儿童医院 | Tracheal cannula's cleaning device |
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Granted publication date: 20200828 Termination date: 20211028 |