CN114870184A - Trachea cannula capable of monitoring pressure and monitoring method thereof - Google Patents

Trachea cannula capable of monitoring pressure and monitoring method thereof Download PDF

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Publication number
CN114870184A
CN114870184A CN202210458820.XA CN202210458820A CN114870184A CN 114870184 A CN114870184 A CN 114870184A CN 202210458820 A CN202210458820 A CN 202210458820A CN 114870184 A CN114870184 A CN 114870184A
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China
Prior art keywords
pressure
monitoring
balloon
display device
pressure sensing
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CN202210458820.XA
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Chinese (zh)
Inventor
王国胜
杨亚杰
朱亚萍
王文静
赵楠
张瑜
李菲
程杰
崔景强
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Henan Tuoren Medical Device Co ltd
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Henan Tuoren Medical Device Co ltd
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Priority to CN202210458820.XA priority Critical patent/CN114870184A/en
Publication of CN114870184A publication Critical patent/CN114870184A/en
Pending legal-status Critical Current

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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
    • A61M16/0434—Cuffs
    • A61M16/044—External cuff pressure control or supply, e.g. synchronisation with respiration
    • 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
    • A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
    • 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
    • A61M16/0486—Multi-lumen tracheal tubes
    • 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
    • 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
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3327—Measuring
    • 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
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow

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  • 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)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

A trachea cannula capable of monitoring pressure and a monitoring method thereof are provided, the trachea cannula comprises a tube body 1 penetrating through a saccule 2 and a pressure monitoring mechanism, one side of the saccule is communicated with an air duct 5 and comprises a pressure sensing part 3 surrounding the saccule 2 and the pressure monitoring mechanism, and the pressure sensing part 3 is connected with a monitoring display device 7 through an electric lead 4 and a switching part 8 in sequence.

Description

Trachea cannula capable of monitoring pressure and monitoring method thereof
Technical Field
The invention relates to the field of medical instruments, in particular to a tracheal cannula capable of monitoring pressure and a monitoring method thereof.
Background
Clinically, a mechanically ventilated patient usually needs to inflate a tracheal catheter balloon to play roles in closing an air passage, fixing the catheter, ensuring the supply of tidal volume, preventing oropharyngeal secretions from entering the lung, preventing aspiration, reducing lung infection and the like. The balloon is positioned at the lower end part of the tracheal catheter, and after intubation, a doctor injects a certain amount of gas into the balloon to expand the balloon to an ideal state so as to isolate the lung from the outside air. Excessive expansion of the balloon can cause excessive compression on capillary vessels in the tracheal mucosa of a human body, thereby causing damage to the tracheal mucosa. Insufficient expansion of the saccule can cause gas leakage in a trachea, the effect of fixing the trachea cannula cannot be achieved, the mechanical ventilation quality is reduced, and the clinical treatment effect is influenced. It is therefore important to maintain the balloon at an appropriate inflation level.
At present, the pressure value borne by the tracheal mucosa is measured indirectly through the internal pressure of a detection saccule by an external pressure detection device clinically. However, due to the differentiation between individual structures, different compression forces are generated on different individual tissues by equal inflation amount, so that the conventional detection means cannot accurately evaluate the intracapsular pressure requirement.
Disclosure of Invention
In order to solve the problems, the invention provides a tracheal cannula capable of monitoring pressure and a monitoring method thereof, the tracheal cannula capable of monitoring pressure comprises a tube body 1 penetrating through a balloon 2 and a pressure monitoring mechanism, wherein one side of the balloon is communicated with an air duct 5, one end of the air duct 5 is connected with an inflation part 6, the tracheal cannula further comprises a pressure sensing part 3 surrounding the balloon 2 for one circle, the pressure sensing part 3 is connected with a monitoring display device 7 through an electric lead 4 and a switching part 8 in sequence, and a sensor of the sensing part 3 is connected with the electric lead 4 in a matching manner.
Further, the pressure sensing part 3 is composed of at least 6 pressure sensors.
Further, the pressure sensing portion 3 is preferably an array structure of at least 2 × 3 flexible thin film pressure sensors.
Further, the width of the pressure sensing part 3 is 0.3-1 CM.
Furthermore, the part of the pressure sensing part 3, which is far away from the balloon 2, is encapsulated by a high polymer material and is cured and adhered to the outside of the balloon 2 by resin glue.
Further, the high polymer material encapsulated by the pressure sensing part 3 is one or more of thermoplastic polyurethane elastomer rubber, polydimethylsiloxane and polyimide.
Further, the side of the electric lead 4 far away from the monitoring display device 7 is printed with the outside of the tube body 1 through conductive ink.
Further, the pressure sensing part 3 transmits the pressure value of the balloon 2 to the monitoring display device 7 in real time.
Further, when the pressure value exceeds the threshold range, a buzzing alarm device arranged on the monitoring display device 7 automatically reminds.
Further, the pressure sensing part 3 may also be wirelessly connected to the monitoring display device 7.
A pressure detection method of an endotracheal intubation comprises the following steps:
the method comprises the following steps: and (3) inflating: the tracheal cannula is placed in a respiratory airway of a patient, the saccule 2 is inflated at a proper position below the glottis when the saccule 2 is placed, and the pressure of the saccule 2 is controlled within a set threshold range;
step two: pressure monitoring: the balloon 2 is internally stressed, the pressure sensing part 3 generates electric signal change, the electric signal change is connected through an electric lead 4 to form a sensing array, and the electric signal is transmitted to a detection display device 7;
step three: and (3) pressure detection reminding: when the pressure value detected by the detection display device 7 exceeds the threshold range, the buzzing alarm device can give an alarm and flash a light for prompting in time.
Step four: and (3) pressure monitoring treatment: when the pressure exceeds the threshold range, partially pumping out the gas of the balloon 2, and controlling the pressure value below the threshold; when the pressure value is smaller than the set threshold range, the balloon 2 is continuously inflated until the set threshold range.
Compared with the traditional trachea cannula capable of detecting pressure and the monitoring method thereof, the trachea cannula has the following beneficial effects:
(1) the invention has simple integral design structure and easy operation;
(2) the pressure sensing part is matched with the monitoring structure, so that the pressure in the balloon can be monitored in real time for a long time, and the airway of a patient is effectively protected;
(3) the invention provides a simple and visual detection method, which is simple to operate and has good biological safety.
Drawings
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the endotracheal tube of the present invention.
In the figure, 1 is a tube body, 2 is a balloon, 3 is a pressure sensing part, 4 is an electric lead, 5 is an air guide tube, 6 is an inflating part, 7 is a detection display device, and 8 is an adapter part.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the pressure monitoring device comprises a tube body 1 penetrating through a balloon 2 and a pressure monitoring mechanism, wherein one side of the balloon is communicated with an air duct 5, one end of the air duct 5 is connected with an inflating part 6, the pressure monitoring mechanism further comprises a pressure sensing part 3 surrounding the balloon 2 for one circle, the pressure sensing part 3 is connected with a monitoring display device 7 through an electric lead 4 and a switching part 8 in sequence, and a sensor of the sensing part 3 is connected with the electric lead 4 in a matching way.
The improvement of the embodiment is that the pressure sensing part 3 can also be wirelessly connected with the monitoring display device 7.
Further, the pressure sensing part 3 is composed of at least 6 pressure sensors.
The improvement of this embodiment is that the pressure sensing part 3 is preferably an array structure of at least 2 x 3 flexible film pressure sensors.
Further, the width of the pressure sensing part 3 is 0.3-1 CM.
Furthermore, the part of the pressure sensing part 3 away from the balloon 2 is encapsulated by a polymer material with good biocompatibility, and is cured and adhered to the outside of the balloon 2 by resin glue.
Further, the polymer material encapsulated by the pressure sensing part 3 is one or more of thermoplastic polyurethane elastomer rubber (TPU), Polydimethylsiloxane (PDMS), polyethylene terephthalate (PET), and Polyimide (PI).
The further improvement of the embodiment is that the pressure sensing part 3 is at least 3 pressure sensors of array-shaped flexible thin films, when the balloon 2 is acted by force, the flexible thin film pressure sensors can generate the change of electric signals, and the electric signals can be effectively transmitted in real time;
the further improvement of this embodiment is that the polymer material encapsulated by the pressure sensing part 3 is one or more of thermoplastic polyurethane elastomer rubber (TPU), Polydimethylsiloxane (PDMS), polyethylene terephthalate (PET) and Polyimide (PI), and the above polymer material for encapsulation has good biocompatibility, is more beneficial to tracheal intubation pressure monitoring, and does not have adverse effect on the patient.
Further, the side of the electric lead 4 far away from the monitoring display device 7 is printed with the outside of the tube body 1 through conductive ink.
The further improvement of this embodiment is that the electrical leads 4 are printed with the exterior of the tube 1 by conductive ink, so that the tube 1 does not bulge, harm the airway of the patient, and is more beneficial to the transmission of electrical signals.
Further, the pressure sensor 3 transmits the pressing force of the balloon 2 to the monitoring display device 7 in real time.
Further, when the pressure exceeds the threshold range, a buzzing alarm device arranged on the monitoring display device 7 automatically reminds.
A pressure detection method comprises the following steps:
the method comprises the following steps: and (3) inflating: placing a tracheal cannula into a respiratory airway of a patient, placing the saccule 2 into a proper position below a glottis, and inflating the saccule 2, wherein the pressure of the saccule 2 is controlled within a set threshold range;
step two: pressure monitoring: the balloon 2 is internally stressed, the pressure sensing part 3 generates electric signal change, the electric signal change is connected through an electric lead 4 to form a sensing array, and the electric signal is transmitted to a detection display device 7;
step three: and (3) pressure detection reminding: when the pressure detected by the detection display device 7 exceeds the threshold range, the buzzing alarm device can give an alarm and flash a light for prompting in time.
Step four: and (3) pressure detection processing: when the pressure exceeds the threshold range, partially pumping out the gas of the balloon 2, and controlling the pressure value below the threshold; when the external pressure value is smaller than the set threshold range, the balloon 2 is continuously inflated until the set threshold range.
In the working process, in the process of inflating the air bag, the pressure sensing part 3 can detect the compression force between the air bag and human tissues in real time and transmit the generated signals to the monitoring display device 7, at the moment, the digital display screen of the monitoring display device 7 can display the pressure value in real time, the monitoring display device 7 is used for collecting, processing and displaying electric signals generated after the pressure sensing part 3 of the array-shaped flexible film is stressed, when the pressure exceeds the range of a threshold value, the buzzing alarm device can give out sound to remind, at the moment, the gas of the balloon 2 can be partially pumped out, and the pressure value is controlled below the threshold value; when the monitoring display device 7 indicates that the pressure value detected by the pressure sensing part 3 is smaller than the set threshold range, the balloon 2 is continuously inflated until the proper range is reached.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. The utility model provides a but trachea cannula of monitoring pressure, is including body (1), the pressure monitoring mechanism who link up sacculus (2), its characterized in that, sacculus one side intercommunication has air duct (5), air duct (5) one end is connected with portion of aerifing (6), still including surrounding pressure sensing portion (3) of sacculus (2) a week, pressure sensing portion (3) loop through electric lead (4), switching portion (8) and are connected with monitoring display device (7), the sensor of sensing portion (3) with electric lead (4) are to mating connection.
2. A pressure monitorable endotracheal tube according to claim 1 and characterized in that said pressure sensing portion (3) is constituted by at least 6 pressure sensors.
3. A pressure monitorable endotracheal tube according to claim 2 characterized in that said pressure sensing portion (3) is preferably an array of at least 2 x 3 flexible film pressure sensors.
4. A pressure monitorable endotracheal tube according to claim 3 characterized in that the pressure sensing portion (3) has a width of 0.3-1 CM.
5. A trachea cannula capable of monitoring pressure according to claim 4, wherein the part of the pressure sensing part (3) far away from the balloon (2) is encapsulated by high polymer material, and is solidified and adhered to the outside of the balloon (2) by resin glue.
6. The endotracheal intubation according to claim 4, characterized in that the polymer material encapsulated by the pressure sensing portion (3) is one or more of thermoplastic polyurethane elastomer rubber, polydimethylsiloxane, polyethylene terephthalate, and polyimide.
7. A pressure monitorable endotracheal tube according to claim 1, characterized in that the side of the electrical conductors (4) remote from the monitoring and display device (7) is printed in one piece with the outside of the tube body (1) by means of an electrically conductive ink.
8. The endotracheal tube according to claim 1, characterized in that said pressure sensing portion 3 transmits in real time the pressure value of said balloon (2) to said monitoring and display means (7).
9. A trachea cannula capable of monitoring pressure according to claim 4, wherein when the pressure value exceeds the threshold value range, the monitoring display device (7) is provided with a buzzing alarm device for automatically reminding.
10. A pressure monitorable endotracheal tube according to claim 1, characterized in that the pressure sensing portion (3) is also wirelessly connectable to the monitoring display device (7).
11. The method for detecting the pressure of an endotracheal tube according to any one of claims 1 to 10, comprising the steps of:
the method comprises the following steps: and (3) inflating: the tracheal cannula is placed into a respiratory airway of a patient, the saccule (2) is placed at a proper position under a glottis, the saccule (2) is inflated, and the pressure of the saccule (2) is controlled within a set threshold range;
step two: pressure monitoring: the balloon (2) is internally stressed, the pressure sensing part (3) of the balloon generates electric signal changes, the electric signal changes are connected through an electric lead (4) to form a sensing array, and the electric signal is transmitted to a detection display device (7);
step three: and (3) pressure detection reminding: when the pressure value detected by the detection display device (7) exceeds the threshold range, the buzzing alarm device can give an alarm and flash a light for prompting in time;
step four: and (3) pressure monitoring treatment: when the pressure exceeds the threshold range, partially pumping out the gas of the balloon (2), and controlling the pressure value below the threshold; when the pressure value is smaller than the set threshold range, the balloon (2) is continuously inflated until the set threshold range.
CN202210458820.XA 2022-04-28 2022-04-28 Trachea cannula capable of monitoring pressure and monitoring method thereof Pending CN114870184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210458820.XA CN114870184A (en) 2022-04-28 2022-04-28 Trachea cannula capable of monitoring pressure and monitoring method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210458820.XA CN114870184A (en) 2022-04-28 2022-04-28 Trachea cannula capable of monitoring pressure and monitoring method thereof

Publications (1)

Publication Number Publication Date
CN114870184A true CN114870184A (en) 2022-08-09

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Country Status (1)

Country Link
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