Non-invasive mechanical ventilation oronasal mask and respiratory monitoring methods for interventional diagnosis and treatment

Abstract

The present invention discloses a non-invasive mechanical ventilation oronasal mask and respiratory monitoring method for interventional diagnosis and treatment. The mask comprises a mask body, an airflow sensor component, a carbon dioxide sensor, a sensor interface module, an analog-to-digital conversion module, a main controller, and an alarm. The mask body has a first opening near the air inlet pipe, which is sealed by a sealing plug. The airflow sensor component comprises an airflow sensor and a rotating component, the rotating component comprising a rotating rod and a mask body, a mask body vent provided on the side of the mask body, the airflow sensor disposed within the mask body, a second opening disposed in the mask body, the rotating rod passing through the second opening and rotatably connected to the mask body, the mask body disposed inside the mask body, and a carbon dioxide sensor fixedly disposed inside the mask body. This method enables patients to undergo respiratory interventional examinations, treatments, and daily care while undergoing non-invasive ventilation, and can promptly detect respiratory oxygenation problems in patients.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a non-invasive mechanical ventilation oronasal mask and a respiratory monitoring method for interventional diagnosis and treatment. Background Art

[0002] Non-invasive ventilation (NIV) provides effective mechanical ventilation via a nasal or oral mask connected to a non-invasive ventilator. It is highly effective in correcting hypoxia and carbon dioxide retention in patients and is a key clinical treatment for early-stage and chronic respiratory failure. However, conventional NIV masks only provide general ventilation functions and are not capable of performing other technical procedures. Some patients with hypoxia face masks face difficulty maintaining oxygenation during interventional respiratory examinations and treatments. Clinical care and treatment, such as suctioning, feeding, and bronchoscopy, often require temporary removal of the ventilator mask. Even brief periods of hypoxia can pose a significant risk to survival in critically ill patients, especially those with severe hypoxia. Furthermore, some patients with hypoxia tend to breathe through their mouths during sleep. NIV typically requires a certain amount of pressure, which can force most of the air into the stomach, preventing the desired oxygenation efficiency and potentially causing abdominal distension and dry mouth. Some patients may not respond well to non-invasive ventilation. The airway obstruction is not restored, resulting in an increase in the CO2 concentration in the exhaled air, which in turn causes a high concentration of carbon dioxide in the local area of ​​the mask, and fails to achieve the expected therapeutic effect. If no attention is paid to monitoring, it is difficult to detect immediately, posing a risk to the patient.

[0003] Therefore, in order to reduce the time of patient deoxygenation and promptly detect patient oxygenation problems, a non-invasive ventilator mask with a monitoring device is needed, which can be used continuously while the non-invasive ventilator is being cared for and treated. Summary of the Invention

[0004] The purpose of the present invention is to provide a non-invasive mechanical ventilation oral and nasal mask for interventional diagnosis and treatment, which can enable patients to ensure respiratory intervention examination, treatment and daily care under non-invasive ventilation, and can promptly detect patients' respiratory oxygenation problems.

[0005] In one aspect of the present invention, a non-invasive mechanical ventilation oronasal mask for interventional diagnosis and treatment is provided, comprising a mask body, characterized in that it also includes an airflow sensor component, a carbon dioxide sensor, a sensor interface module, an analog-to-digital conversion module, a main controller, and an alarm;

[0006] The air inlet pipe is provided with a first opening near the mask body, and the first opening is sealed by a sealing plug;

[0007] The airflow sensor component includes an airflow sensor and a rotating component, the rotating component includes a rotating rod and a cover body, the cover body side is provided with a cover body vent, the airflow sensor is arranged in the cover body, the mask body is provided with a second opening, the rotating rod passes through the second opening and is rotatably connected to the mask body, and the cover body is arranged inside the mask body;

[0008] The carbon dioxide sensor is fixedly arranged on the inner side of the mask body;

[0009] The air flow sensor and the carbon dioxide sensor are respectively connected to the analog-to-digital conversion module through sensor interface modules. The analog-to-digital conversion module is connected to the main controller, and the alarm is connected to the main controller.

[0010] In the mask described above, preferably, the rotating rod is an L-shaped structure, and the mask body is connected to the short arm of the L-shaped structure.

[0011] For the mask described above, preferably, the second opening is arranged on the mask body near the patient's mouth.

[0012] For the mask described above, preferably, the ventilation holes are arranged on the side of the mask body.

[0013] Another aspect of the present invention provides a non-invasive mechanical ventilation oral and nasal mask system for interventional diagnosis and treatment, including the mask described above, wherein the airflow sensor and the carbon dioxide sensor are respectively connected to the analog-to-digital conversion module through a sensor interface module, the analog-to-digital conversion module is connected to the main controller, and the alarm is connected to the main controller.

[0014] Another aspect of the present invention provides a respiratory monitoring method using the above mask system, comprising the following steps:

[0015] Acquire a respiratory airflow signal from an airflow sensor, wherein the respiratory airflow signal is a respiratory airflow rate. If the respiratory airflow rate is greater than 20 ml / min, the main controller sends a signal to control an alarm;

[0016] The carbon dioxide concentration signal of the carbon dioxide sensor is obtained. If the carbon dioxide concentration is higher than 50 mmHg, the main controller sends a signal to control the alarm. Beneficial effects

[0017] The non-invasive mechanical ventilation oronasal mask for interventional diagnosis and treatment of the present invention can monitor the carbon dioxide concentration in the patient's mask through a carbon dioxide sensor to confirm that the non-invasive ventilator has indeed achieved the effect of improving the patient's oxygenation efficiency. The airflow sensor can measure whether the patient generates airflow through mouth breathing to avoid reducing the oxygenation efficiency and causing discomfort to the patient due to mouth breathing; the first opening opened on the mask body near the air inlet pipe can facilitate the doctor to insert the pipe when necessary to perform some operations such as suctioning sputum, feeding water, and bronchoscopy and gastric tube intubation for the patient; the sealing plug around the opening can seal around the intubation tube to reduce oxygen leakage and lead to low oxygenation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the outer side of the non-invasive mechanical ventilation oronasal mask for interventional diagnosis and treatment according to the present invention;

[0019] Figure 2 A schematic diagram of the inner side of the non-invasive mechanical ventilation oronasal mask for interventional diagnosis and treatment according to the present invention;

[0020] Figure 3 This is a block diagram of the working principle of the non-invasive mechanical ventilation oronasal mask system for interventional diagnosis and treatment of the present invention;

[0021] The reference numerals are as follows:

[0022] Mask body 1, first opening 11, air inlet pipe 2, sealing plug 3, plug cover 31, rotating rod 4, rotating head 41, cover body 5, cover body vent 51, air flow sensor 6, carbon dioxide sensor 7. DETAILED DESCRIPTION

[0023] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art. Example 1

[0024] See also Figures 1 to 2 As shown, this embodiment provides a non-invasive mechanical ventilation oronasal mask for interventional diagnosis and treatment, including a mask body 1, an airflow sensor component, a carbon dioxide sensor 7, a sensor interface module, an analog-to-digital conversion module, a main controller, and an alarm;

[0025] The air inlet duct 2 has a first opening 11 formed near the mask body 1. This opening 11 is sealed by a sealing plug 3. Preferably, the sealing plug 3 also has a plug cap 31 that can be removed or inserted, creating a sealed state when inserted. More preferably, the sealing plug 3 is made of an elastic material such as rubber or resin to provide a better sealing effect.

[0026] The airflow sensor component includes an airflow sensor 6 and a rotating component. The rotating component includes a rotating rod 4 and a cover body 5. A cover vent 51 is provided on the side of the cover body 5. The airflow sensor 6 is arranged in the cover body 5. The mask body 1 is provided with a second opening. The rotating rod passes through the second opening and is rotatably connected to the mask body 1, and the cover body 5 is arranged on the inner side of the mask body 1; preferably, the rotating rod 4 is an L-shaped structure, and the cover body 5 is connected to the short arm of the L-shaped structure. It is also preferred that the second opening is arranged on the mask body 1 near the patient's mouth, which is convenient for rotating the rotating rod 4 to place the cover body 5 above the patient's mouth; preferably, the vent 51 is arranged on the side of the cover body 5, and more preferably, when the rotating rod 4 rotates the cover body 5 to above the patient's mouth, the position of the vent 51 is away from the air inlet pipe 2, so that the interference of the intake air on the airflow sensor 6 can be avoided as much as possible; more preferably, the size of the cover body 5 is basically consistent with the size of an ordinary person's mouth.

[0027] The carbon dioxide sensor 7 is fixedly arranged on the inner side of the mask body 1, preferably, fixed on the inner side of the mask near the upper side of the nose to avoid being directly affected by the impact of exhaled gas from the nose.

[0028] The air flow sensor 6 and the carbon dioxide sensor 7 are connected to the analog-to-digital conversion module through the sensor interface module respectively. The analog-to-digital conversion module is connected to the main controller, and the alarm is connected to the main controller. Example 2

[0029] See also Figure 3 As shown, the non-invasive mechanical ventilation oronasal mask system for interventional diagnosis and treatment of the present invention includes the mask described above, wherein the airflow sensor 6 and the carbon dioxide sensor 7 are respectively connected to the analog-to-digital conversion module through the sensor interface module, the analog-to-digital conversion module is connected to the main controller, and the alarm is connected to the main controller. The airflow sensor 6 obtains a respiratory airflow signal, which is the respiratory airflow rate. If the respiratory airflow rate is greater than 20 ml / min, the main controller sends a signal to control the alarm to sound an alarm, prompting the doctor and the patient to use mouth breathing;

[0030] The carbon dioxide sensor 7 obtains a carbon dioxide concentration signal. If the carbon dioxide concentration is higher than 50 mmHg, the main controller sends a signal to control the alarm to alert the doctor that there is a problem with the patient's oxygenation. Example 3

[0031] See also Figure 1-3 As shown, the respiratory monitoring method of the present invention comprises the following steps:

[0032] Acquire the respiratory airflow signal from the airflow sensor 6, which is the respiratory airflow rate. If the respiratory airflow rate is greater than 20 ml / min, the main controller sends a signal to control the alarm to sound an alarm.

[0033] The carbon dioxide concentration signal of the carbon dioxide sensor 7 is obtained. If the carbon dioxide concentration is higher than 50 mmHg, the main controller sends a signal to control the alarm to sound an alarm.

[0034] When using the mask of the present invention, the mask body 1 is covered on the patient's mouth and nose, and the rotating head 41 is rotated to align the mask body 5 with the patient's mouth. The airflow sensor 6 in the mask body 5 obtains a respiratory airflow signal, which is a respiratory airflow rate. If the respiratory airflow rate is greater than 20 ml / min, it means that the patient is breathing through the mouth. The main controller sends a signal to control the alarm to alarm, reminding the doctor or nurse to adjust the patient to nasal breathing; the carbon dioxide sensor 7 obtains a carbon dioxide concentration signal in the mask body 1. If the carbon dioxide concentration is higher than 50 mmHg, the main controller sends a signal to control the alarm to alarm, reminding the doctor or nurse to pay attention to the patient's oxygenation condition; when the patient needs to perform some operations such as suctioning, feeding water, bronchoscopy, and gastric tube intubation, the plug cover 31 of the sealing plug 3 is pulled out, and the intubation operation is performed through the first opening 11. The sealing plug has a certain elasticity and can seal the space around the tube during intubation to prevent oxygen from leaking, and will not affect the patient's oxygenation treatment even during the operation.

[0035] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the present invention. Therefore, such modifications and improvements, which do not depart from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. A non-invasive mechanical ventilation oronasal mask for interventional diagnosis and treatment, comprising a mask body, characterized in that: It also includes air flow sensor components, carbon dioxide sensor, sensor interface module, analog-to-digital conversion module, main controller, and alarm; The air inlet pipe is provided with a first opening near the mask body, and the first opening is sealed by a sealing plug; The airflow sensor component includes an airflow sensor and a rotating component, the rotating component includes a rotating rod and a cover body, the cover body side is provided with a cover body vent, the airflow sensor is arranged in the cover body, the mask body is provided with a second opening, the rotating rod passes through the second opening and is rotatably connected to the mask body, the cover body is arranged inside the mask body; the carbon dioxide sensor is fixedly arranged on the inside of the mask body; The rotating rod is an L-shaped structure, and the cover is connected to the short arm of the L-shaped structure; The vent hole is arranged on the side of the cover body; When the rotating rod rotates the mask to above the patient's mouth, the position of the vent is away from the air intake line, thereby preventing the air intake from interfering with the airflow sensor; The carbon dioxide sensor is fixed on the inner side of the mask body near the upper side of the nose to avoid being directly affected by the impact of exhaled gas from the nose.

2. The mask according to claim 1, wherein The second opening is arranged on the mask body near the patient's mouth.

3. The mask according to claim 1, wherein The rotating rod is provided with a rotating head at one end outside the mask body.

4. A non-invasive mechanical ventilation oronasal mask system for interventional diagnosis and treatment, characterized in that: The mask according to claim 1, wherein the airflow sensor and the carbon dioxide sensor are respectively connected to the analog-to-digital conversion module through a sensor interface module, the analog-to-digital conversion module is connected to the main controller, and the alarm is connected to the main controller.

5. A respiratory monitoring method using the mask system of claim 4, characterized in that: The steps include: Acquire a respiratory airflow signal from an airflow sensor, wherein the respiratory airflow signal is a respiratory airflow rate. If the respiratory airflow rate is greater than 20 ml / min, the main controller sends a signal to control an alarm; The carbon dioxide concentration signal of the carbon dioxide sensor is obtained. If the carbon dioxide concentration is higher than 50 mmHg, the main controller sends a signal to control the alarm.

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