CN112156306B - Trachea cannula for monitoring cuff pressure in real time - Google Patents
Trachea cannula for monitoring cuff pressure in real time Download PDFInfo
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- CN112156306B CN112156306B CN202010948307.XA CN202010948307A CN112156306B CN 112156306 B CN112156306 B CN 112156306B CN 202010948307 A CN202010948307 A CN 202010948307A CN 112156306 B CN112156306 B CN 112156306B
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- Prior art keywords
- pressure
- display device
- monitoring display
- cuff
- inflation
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- 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
- A61M16/0402—Special features for tracheal tubes not otherwise provided for
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- 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
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
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- 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
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
Abstract
The invention discloses a trachea cannula for monitoring cuff pressure in real time, which comprises a pressure monitoring display device, an inflation tube, an elastic film, a cuff and a tube body; wherein, one end of the tube body is a machine connecting end, the other end is a patient connecting end, and the cuff is sleeved on the tube body close to the patient connecting end; one end and the cover of gas tube intercommunication, the other end and pressure monitoring display device intercommunication, elastic film installs on pressure monitoring display device, and pressure monitoring display device includes pressure sensor, circuit, digital screen and power module, and pressure sensor, digital screen and circuit connection, pressure sensor are used for gathering the pressure of cover bag, and power module is used for supplying power for pressure monitoring display device. The whole trachea cannula is of an integrated structure, wherein the inflation inlet and the pressure monitoring display device are integrated together, the comprehensive judgment can be carried out by combining an empirical judgment method and a pressure real-time monitoring display method, and the result reliability is high.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a tracheal cannula for monitoring cuff pressure in real time.
Background
Trachea cannula is a technique for placing a special trachea catheter into the trachea of a human body, and the technique becomes an important measure in the process of cardio-pulmonary resuscitation and emergency treatment of critical patients accompanied with respiratory dysfunction. The cuff is positioned at the lower part of the tracheal cannula and has the main functions of: fixing, namely keeping the tracheal catheter in the central position of the trachea, and avoiding the front section of the catheter from damaging the mucosa of the trachea; the sealing is adopted, so that air leakage is prevented, and the supply of tidal volume is ensured; preventing aspiration, and reducing infection. The phenomenon that the inflation pressure of the cuff is too high or too low or air leakage occurs can cause harm to a patient, when air overflows from the weak part of the cuff to lose the leakage-proof efficiency, local mucosa pressure ischemia is caused, annular scars are caused after recovery to narrow the trachea, the trachea is expanded, the membrane part of the rear wall of the trachea is damaged, and the trachea is softened or necrotized due to too high intracapsular pressure for a long time.
The main methods and devices for cuff pressure monitoring currently on the market exist: (1) The finger pinching method is to inflate the catheter cuff by the personal experience of the medical staff, and to pinch the pressure average value with the finger to be higher or lower, but the pressure estimation is not accurate by the personal experience and the finger feel due to no fixed reference standard, so that the expected effect is difficult to achieve. (2) The air bag pressure measuring meter method can safely inflate by measuring the pressure of a cuff, and the main foreign brands are VBMTM and Ambu, but the pressure needs to be monitored every 4 to 6 hours, the cuff pressure cannot be monitored in real time, the operation is complex, and the price of the meter is high. (3) Patent CN105233384A can automatic monitoring gasbag pressure's trachea cannula, this device utilizes bluetooth module, connects external terminal monitoring pressure, but inside its pressure measuring module arranged the cover bag in, can get into the human body thereupon during the intubate, and the use can influence human physiological environment, is dangerous to the people, and this kind of disconnect-type structure needs independent display terminal simultaneously, can not very conveniently read pressure.
Disclosure of Invention
The invention aims to provide a trachea cannula for monitoring the cuff pressure in real time, which solves the technical problems and can integrally and automatically monitor the cuff pressure in real time.
In order to achieve the purpose, the invention adopts the following technical scheme:
a trachea cannula for monitoring the pressure of a cuff in real time comprises a pressure monitoring display device, an inflation tube, an elastic film, the cuff and a tube body; wherein, one end of the tube body is a machine connecting end, the other end is a patient connecting end, and the cuff is sleeved on the tube body close to the patient connecting end;
one end of the inflation tube is communicated with the cuff, the other end of the inflation tube is communicated with the pressure monitoring display device, the elastic film is installed on the pressure monitoring display device, the pressure monitoring display device comprises a pressure sensor, a circuit, a digital screen and a power module, the pressure sensor and the digital screen are connected with the circuit, the pressure sensor is used for collecting the pressure of the cuff, and the power module is used for supplying power for the pressure monitoring display device.
The invention is further improved in that a one-way valve is adopted for an inflation inlet on the pressure monitoring display device.
The invention is further improved in that when the pressure sensor works, the signal output by the pressure sensor is processed by the circuit and then is sent to the digital screen to display the pressure at the moment.
The invention has the further improvement that the circuit is connected with two LED lamps, and the alarm or the prompt can be given according to the pressure.
A further development of the invention is that the machine connection end of the tube body is intended for connection to a respirator or a breathing bag and the patient connection end is intended for fixing to the mucous membrane of a patient.
A further improvement of the invention is that the elastic membrane expands during inflation as the gas pressure inside the device changes, thereby indicating whether the cuff is inflating properly and the degree of filling inside the cuff.
Compared with the prior art, the invention has the following beneficial effects:
the whole trachea cannula is of an integrated structure, wherein the inflation inlet and the pressure monitoring display device are integrated together, the comprehensive judgment can be carried out by combining an empirical judgment method and a pressure real-time monitoring display method, and the result reliability is high. (1) Compared with the traditional finger pinching method which only depends on personal experience judgment, the method can monitor the pressure of the cuff in real time and display the pressure reading in real time through the human-computer interaction interface, so that a user can visually judge the pressure quantitatively according to the result, and the result is accurate. (2) Compared with an air bag pressure gauge method, the invention has the advantages of small volume, low cost, capability of displaying the internal pressure of the cuff in real time and convenient use. (3) Compare in the trachea cannula of patent CN105233384A bluetooth connection, whole monitoring devices is integrated with the inflation inlet, keeps away from the user, and service environment is more stable, and integrated structure makes monitoring and mutual display module coupling be in the same place, has alleviateed medical staff's working strength, uses more swiftly, can reliably use in the emergency.
Drawings
FIG. 1 is a schematic diagram of the configuration of an endotracheal tube of the present invention for real time monitoring of cuff pressure;
fig. 2 is a schematic view of the pressure monitoring display device of fig. 1.
Description of reference numerals:
1. the pressure monitoring display device comprises a pressure monitoring display device 2, an inflation tube 3, an elastic film 4, a cuff 5, a tube body 6, a machine connecting end 7, a patient connecting end 8, a pressure sensor 9, a central control circuit 10, a digital screen 11, a power supply module 12 and an inflation inlet.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in figure 1, the trachea cannula for monitoring the cuff pressure in real time provided by the invention comprises a pressure monitoring display device 1, an inflation tube 2, an elastic film 3, a cuff 4, a tube body 5, a machine connecting end 6 and a patient connecting end 7. The pressure monitoring display device 1 has a specific structure as shown in fig. 2, and includes a pressure sensor 8, a central control circuit 9, a digital display screen 10, a power module 11, and an air charging port 12. The front end of the pressure monitoring display device 1 is connected with an inflation device through an inflation inlet 12, the rear end of the pressure monitoring display device is connected with an inflation tube 2, an elastic film 3 is arranged on the upper portion of the pressure monitoring display device, a digital screen is arranged on the lowest layer of the pressure monitoring display device, and the whole device keeps sealed. One end of the inflation tube 2 is connected with the pressure monitoring display device 1, and the other end is connected with the cuff 4. One end of the tube body 5 is a machine connecting end 6 for connecting with a breathing machine or a breathing air bag, and the other end is a patient connecting end 7 fixed on the mucosa of a patient.
The inflation inlet 12 in the pressure monitoring display device 1 adopts a one-way valve, so that the whole device can be closed with the elastic film of the inflation tube 2 and the cuff 4 after inflation and inflation are finished, the elastic film 3 can expand along with the change of the inflation pressure in the inflation process, and whether the inflation process of the cuff is normal or not and the filling degree of the inside of the cuff can be displayed. Medical personnel can carry out experience judgement according to the deformation degree, and the digital screen of 1 lower part of pressure monitoring display device can show current cuff pressure simultaneously, indicates or reports to the police. And it is kept away from the machine connecting end 6 and the patient connecting end 7, and the safety is improved. The integrated connection mode of the pressure monitoring display device 1 occupies small space and is light in weight, and the pipe body 5 can naturally droop after the inflation is completed, so that the use of the pipe body 5 is not influenced.
The working principle is as follows:
as shown in figure 1, the inflation inlet in the pressure monitoring display device 1 adopts a one-way valve, so that the whole device can be kept closed with the elastic film 3 of the inflation tube 2 and the cuff 4 after the inflation and the inflation are finished, the pressure at the cuff 4 is the same as the pressure in the pressure monitoring display device 1, and the pressure at the cuff 4 is measured only at the pressure monitoring display device 1. The pressure monitoring display device 1 and the elastic film 3 form a closed space as shown in fig. 2, at this time, the pressure sensor 8 can measure the pressure at the cuff 4, then the pressure sensor 8 sends a measurement signal to the circuit 9, the processed measurement signal drives the digital screen 10 to display the currently measured pressure value, and meanwhile, the circuit 9 is connected with two LED lamps which can prompt or alarm according to the pressure. The elastic membrane 3 will expand with the change of the gas pressure inside the device during the inflation process, thereby showing whether the cuff is inflated normally and the degree of filling inside the cuff. At the moment, medical staff can judge the gas filling degree by adopting an experience judgment method, and comprehensively judge whether the gas with enough pressure is filled into the cuff 4 or not with the pressure displayed by the pressure monitoring display device 1.
The whole working process of the invention is that the whole trachea cannula is connected according to the figure 1, after ensuring that the air leakage phenomenon does not occur, the whole device is inflated from the inflation inlet 12 of the pressure monitoring display device 1, the whole cuff 4 and the elastic film 3 are gradually inflated along with the inflation of the pressure in the inflation process, the pressure sensor 8 in the pressure monitoring display device 1 and the whole cuff 4 are sealed together, the sensed pressure rises in the gradual inflation process, the acquired pressure signal is output, the pressure signal is sent to the digital screen 10 to display the pressure at the moment after being processed by the circuit 9, and simultaneously two LED lamps connected by the circuit 9 prompt and alarm according to the pressure. The rest of the power module 11 supplies power. When the inflation pressure reaches the rated value, the inflation is stopped, and the whole cuff is inflated.
Claims (1)
1. A trachea cannula for monitoring the pressure of a cuff in real time is characterized by comprising a pressure monitoring display device (1), an inflation tube (2), an elastic film (3), the cuff (4) and a tube body (5); wherein the content of the first and second substances,
one end of the tube body (5) is a machine connecting end (6), the other end is a patient connecting end (7), and the cuff (4) is sleeved on the tube body (5) close to the patient connecting end (7);
one end of the inflation tube (2) is communicated with the cuff (4), the other end of the inflation tube is communicated with the pressure monitoring display device (1), the elastic film (3) is installed on the pressure monitoring display device (1), the pressure monitoring display device (1) comprises a pressure sensor (8), a circuit (9), a digital screen (10) and a power module (11), the pressure sensor (8) and the digital screen (10) are connected with the circuit (9), the pressure sensor (8) is used for collecting the pressure of the cuff (4), and the power module (11) is used for supplying power to the pressure monitoring display device (1);
the machine connecting end (6) of the tube body (5) is used for being connected with a breathing machine or a breathing air bag, and the patient connecting end (7) is used for being fixed on the mucosa of a patient;
the inflation inlet (12) on the pressure monitoring display device (1) adopts a one-way valve; the circuit (9) is connected with two LED lamps, and can prompt or alarm according to the pressure;
during operation, pressure monitoring display device (1) forms airtight space together with elastic film (3), and pressure sensor (8) among pressure monitoring display device (1) are sealed together with whole cover bag (4), pressure sensor (8) measure cover bag (4) department pressure this moment, the signal of pressure sensor (8) output, send into digital screen (10) after circuit (9) are handled and show the pressure this moment, elastic film (3) can take place the inflation along with the change of the inside gas pressure of device in the inflation process, thereby show whether normal and the sufficient degree of cover bag inside of cover bag inflation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010948307.XA CN112156306B (en) | 2020-09-10 | 2020-09-10 | Trachea cannula for monitoring cuff pressure in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010948307.XA CN112156306B (en) | 2020-09-10 | 2020-09-10 | Trachea cannula for monitoring cuff pressure in real time |
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| Publication Number | Publication Date |
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| CN112156306A CN112156306A (en) | 2021-01-01 |
| CN112156306B true CN112156306B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010948307.XA Active CN112156306B (en) | 2020-09-10 | 2020-09-10 | Trachea cannula for monitoring cuff pressure in real time |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113244493A (en) * | 2021-05-06 | 2021-08-13 | 台州恩泽医疗中心(集团) | Trachea cannula capable of monitoring pressure bearing pressure of cuff and pressure bearing pressure management method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4617015A (en) * | 1984-08-10 | 1986-10-14 | Halkey-Roberts Corporation | Visual pressure indicator for endotracheal cuff |
| GB9026403D0 (en) * | 1990-12-05 | 1991-01-23 | Smiths Industries Plc | Pressure monitors |
| FR2976356B1 (en) * | 2011-06-11 | 2013-11-08 | Pascal Lucchina | PRESSURE INDICATOR. |
| CN105233384B (en) * | 2015-09-19 | 2018-10-16 | 陕西省人民医院 | A kind of trachea cannula that can monitor gasbag pressure automatically |
| WO2019162939A1 (en) * | 2018-02-20 | 2019-08-29 | Airway Medix S.A. | Catheter inflatable cuff pressure stabilizers |
| CN211357280U (en) * | 2019-10-28 | 2020-08-28 | 江苏省人民医院（南京医科大学第一附属医院） | Tracheal catheter capable of monitoring cuff pressure in real time and facilitating fixation |
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