Non-invasive airway opening pressure monitoring equipment

Abstract

The utility model relates to the field of medical instruments, and discloses non-invasive airway opening pressure monitoring equipment. The monitoring device comprises: a pressure monitoring conduit; the piezoelectric conversion module is internally provided with a pressure sensor, the input end of the pressure sensor is connected with the pressure monitoring conduit, and the pressure sensor is used for converting the pressure change captured in the pressure monitoring conduit into an electric signal in real time and outputting the electric signal; the display terminal is electrically connected with the piezoelectric conversion module and is used for displaying the pressure change in the airway of the patient. According to the monitoring equipment, pressure monitoring is carried out at the tail end of the opening of the artificial airway through the sensor, additional invasive operation is not needed, the infection risk and discomfort of a patient are reduced, the equipment is light and convenient, the patient can conveniently use the equipment in various medical environments including the non-ICU environment, and the use range of monitoring is widened. In addition, the device is easy to operate, the oxygen flow can be adjusted and guaranteed, it is guaranteed that the patient has oxygen supply, and an additional respirator is not needed for providing oxygen source connection.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and more particularly, to a non-invasive airway opening pressure monitoring device. Background Art

[0002] Airway opening pressure refers to the pressure near the airway opening during breathing. Monitoring this parameter is important for assessing a patient's respiratory function and guiding respiratory therapy. During mechanical ventilation, airway opening pressure monitoring can be used to rationally adjust ventilator parameters to match the patient's respiratory effort, thereby avoiding overventilation or underventilation. In addition, effective assessment of the respiratory effort of mechanically ventilated patients is also key to enabling patients to be safely and smoothly weaned from the ventilator.

[0003] Currently, the patient's respiratory effort is often monitored by using an esophageal pressure monitoring catheter. This method requires inserting a pressure monitoring catheter into the patient's esophagus to measure pressure changes. Although this method can monitor airway opening pressure more accurately, it has the following defects: ① High invasiveness: The pressure monitoring catheter needs to be inserted into the patient's body, increasing the risk of infection and discomfort; ② Complex operation: Professionals are required to operate, increasing medical costs and time; ③ Insufficient comfort: Due to the invasiveness of the pressure monitoring catheter, the patient may feel significant discomfort; ④ Difficulty in monitoring and analysis: Due to the complexity of the equipment, real-time monitoring and data analysis are more difficult; ⑤ Indirect calculation: Esophageal pressure cannot directly represent the patient's lung or chest pressure, and can only be used as an indirect substitute value, which is affected by many factors.

[0004] Therefore, in the field of respiratory effort monitoring, research on non-invasive direct monitoring devices is of great significance. Utility Model Content

[0005] The invention of this application aims to provide a non-invasive airway opening pressure monitoring device to simplify the operation steps and reduce the pain and discomfort of the patient.

[0006] The non-invasive airway opening pressure monitoring device of this application can directly monitor the changes in airway pressure during the weaning process of mechanical ventilation in real time at the bedside, reflecting the patient's spontaneous respiratory effort. It can be used to assess the respiratory effort of patients with respiratory failure and the recovery of the patient's own respiratory capacity during mechanical ventilation withdrawal. This principle uses fluid dynamics pressure monitoring and converts it into an electrical signal in real time for display on the monitor, facilitating real-time monitoring and diagnosis of the patient's condition by medical staff.

[0007] In order to achieve the above-mentioned invention objectives, this application adopts the following technical solutions:

[0008] The present application provides a non-invasive airway opening pressure monitoring device, comprising:

[0009] Pressure monitoring catheter, used to non-invasively collect the patient's airway opening pressure;

[0010] a piezoelectric conversion module, which has a pressure sensor disposed therein, the input end of the pressure sensor being connected to the pressure monitoring conduit, and is used to convert pressure changes captured in the pressure monitoring conduit into electrical signal output in real time; and

[0011] The display terminal is electrically connected to the piezoelectric conversion module and is used to display the pressure changes in the patient's airway.

[0012] Furthermore, it also includes a T-shaped tube, the vertical tube of the T-shaped tube is connected to the artificial airway, one end of the horizontal tube of the T-shaped tube is connected to the external oxygen source, and the other end is connected to the outside atmosphere, the side wall of the T-shaped tube is provided with a hole, the pressure monitoring catheter is inserted into the hole and extends to the opening of the vertical tube of the T-shaped tube.

[0013] Furthermore, a fixing piece for fixing the pressure monitoring catheter is provided at the socket.

[0014] Furthermore, the fixing member is an elastic fixing structure.

[0015] Furthermore, a scale line is provided at one end of the pressure monitoring catheter close to the T-shaped tube for locating the insertion depth of the pressure monitoring catheter.

[0016] Furthermore, the pressure monitoring catheter is a sterile material tube.

[0017] In summary, this application has the following beneficial effects:

[0018] 1. The monitoring device of this application achieves non-invasive monitoring by using a sensor to monitor pressure at the end of the artificial airway opening, without the need for additional invasive procedures, thus reducing the risk of infection and patient discomfort;

[0019] 2. The monitoring device of this application is lightweight and convenient for patients to use in various medical environments, including non-ICU environments, expanding the scope of monitoring use;

[0020] 3. The monitoring device of this application is easy to operate and simplifies the operation steps. It can also be used easily by ordinary nursing staff, reducing the difficulty, time and cost of medical operation;

[0021] 4. The monitoring device of this application can regulate and guarantee the oxygen flow, ensuring that the patient has oxygen supply, without the need for an additional ventilator to provide an oxygen source connection;

[0022] 5. The monitoring device of the present application provides real-time and direct airway pressure data waveform, and can be displayed on a bedside display instrument, making it convenient for medical staff to intervene and adjust treatment plans in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 : Schematic diagram of a non-invasive airway opening pressure monitoring device in an embodiment of the present application.

[0024] Figure numerals: 1. pressure monitoring catheter; 2. piezoelectric conversion module; 3. display terminal; 4. T-shaped tube; 5. jack; 6. fixing piece; 7. scale line. DETAILED DESCRIPTION

[0025] The structure and effects of the present application are further described in detail below with reference to the embodiments. It is understood that the specific embodiments described herein are merely for explaining the present invention, and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only show portions, not all, of the structure relevant to the present invention.

[0026] Example

[0027] The present application discloses a non-invasive airway opening pressure monitoring device, referring to Figure 1 The non-invasive airway opening pressure monitoring device includes a pressure monitoring catheter 1, a piezoelectric conversion module 2, and a display terminal 3. The pressure monitoring catheter 1 is a sterile material tube used for non-invasively collecting the patient's airway opening pressure. The sterile material refers to a sterile material commonly used in the field, such as polyvinyl chloride (PVC), polyurethane (PU), silicone rubber, etc. One end of the pressure monitoring catheter 1 is connected to the piezoelectric conversion module 2. A high-precision pressure sensor is installed inside the piezoelectric conversion module 2. The input end of the sensor is connected to the end of the pressure monitoring catheter 1 and is used to convert the pressure changes obtained in the pressure monitoring catheter 1 into an electrical signal output in real time. The output end of the piezoelectric conversion module 2 is electrically connected to the display terminal 3. The display terminal 3 can be a monitor or display screen for intuitively displaying and recording the pressure changes in the patient's airway. The display terminal 3 should have a clear and easy-to-read interface to facilitate medical staff to quickly obtain monitoring data. It is worth noting that the specific selection of the display terminal 3 needs to be selected according to actual needs, and all are display or monitoring devices commonly used in the field.

[0028] Reference Figure 1The non-invasive airway opening pressure monitoring device of this embodiment also includes a T-tube 4, which includes a vertical tube structure and a horizontal tube structure. The vertical tube is connected to the artificial airway, one end of the horizontal tube is connected to the external oxygen source, and the other end is connected to the outside atmosphere. Furthermore, a socket 5 is provided on the side wall of the T-tube 4, and the pressure monitoring catheter 1 is inserted into the socket 5 and extends to the opening of the vertical tube of the T-tube 4. In this embodiment, the opening position of the socket 5 is arranged opposite the vertical tube to facilitate the insertion of the pressure monitoring catheter 1. In order to improve the insertion firmness of the pressure monitoring catheter 1 and avoid the pressure monitoring catheter 1 from falling out of the socket 5 of the T-tube 4 during monitoring, a fixing member 6 is also provided at the socket 5. The fixing member 6 is preferably set as an elastic fixing structure. For example, in this embodiment, the fixing member 6 is a rubber ring, which can not only fix the pressure monitoring catheter 1, but also play a sealing role. It should be pointed out that the rubber ring is also made of medical sterile material.

[0029] Reference Figure 1 The pressure monitoring catheter 1 is further provided with a scale line 7 at one end close to the T-shaped tube 4 , and the scale line 7 facilitates the operator to locate the insertion depth of the pressure monitoring catheter 1 .

[0030] The change trend of the patient's airway opening pressure is positively correlated with the patient's spontaneous breathing effort. The stronger the breathing effort, the greater the change in airway opening pressure. For patients who are evacuated from mechanical ventilation or need to assess their spontaneous breathing ability, real-time monitoring and assessment of their respiratory effort status is crucial for successfully evacuating mechanical ventilation and thus influencing the decision-making of the next respiratory support strategy. In addition, the present invention does not require additional tube placement, reducing additional invasive procedures and medical expenses for patients.

[0031] The beneficial effects of this application are: pressure monitoring at the end of the artificial airway opening is performed through a sensor, without the need for additional invasive procedures, reducing the risk of infection and patient discomfort. The device is lightweight and convenient for patients to use in various medical environments, including non-ICU environments, expanding the scope of monitoring. In addition, the device is simple to operate and can adjust and guarantee the oxygen flow, ensuring that the patient has an oxygen supply, without the need for an additional ventilator to provide an oxygen source.

[0032] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A non-invasive airway opening pressure monitoring device, characterized in that: include: A pressure monitoring catheter (1) is used for non-invasively collecting the patient's airway opening pressure; A piezoelectric conversion module (2) is provided with a pressure sensor therein, the input end of the pressure sensor being connected to the pressure monitoring catheter (1) and being used to convert pressure changes captured in the pressure monitoring catheter (1) into electrical signal output in real time; as well as The display terminal (3) is electrically connected to the piezoelectric conversion module (2) and is used to display changes in the pressure in the patient's airway.

2. The non-invasive airway opening pressure monitoring device according to claim 1, characterized in that: It also includes a T-shaped tube (4), the vertical tube of the T-shaped tube (4) is connected to an artificial airway, one end of the horizontal tube of the T-shaped tube (4) is connected to an external oxygen source, and the other end is communicated with the outside atmosphere, and a hole (5) is opened on the side wall of the T-shaped tube (4), and the pressure monitoring catheter (1) is inserted into the hole (5) and extends to the opening of the vertical tube of the T-shaped tube (4).

3. The non-invasive airway opening pressure monitoring device according to claim 2, characterized in that: The socket (5) is provided with a fixing member (6) for fixing the pressure monitoring catheter (1).

4. The non-invasive airway opening pressure monitoring device according to claim 3, characterized in that: The fixing member (6) is an elastic fixing structure.

5. The non-invasive airway opening pressure monitoring device according to claim 2, characterized in that: A scale line (7) is provided at one end of the pressure monitoring catheter (1) close to the T-shaped tube (4) for locating the insertion depth of the pressure monitoring catheter (1).

6. The non-invasive airway opening pressure monitoring device according to claim 1, characterized in that: The pressure monitoring catheter (1) is a tube made of sterile material.

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