Tracheostomy tube valve based on self-adaptive airflow adjustment

Abstract

The invention relates to the technical field of tracheotomy cannulas, in particular to a tracheotomy cannula valve based on self-adaptive airflow adjustment, which comprises an inner cannula, the inner cannula is arranged in a tracheotomy outer cannula, one end of the inner cannula penetrates into the trachea of a patient, and the other end of the inner cannula is arranged outside the body of the patient; the valve is arranged at the end, arranged outside the patient body, of the inner sleeve, and a valve piece for controlling the internal gas flow is arranged in the valve; the valve plate is driven to horizontally slide in the valve through changes of air pressure inside and outside the trachea of a patient, the valve plate is turned over in the horizontal sliding process through a meshing transmission structure of a gear and a tooth groove, and after the valve plate rotates to a certain angle, the pressure inside and outside the valve plate is balanced again; therefore, the opening amplitude of the valve is controlled by the breathing state of the patient, and the patient is prevented from discomfort during cough or deep breathing.

Description

Technical Field

[0001] The present invention relates to the technical field of tracheotomy tubes, and in particular to a tracheotomy tube valve based on adaptive airflow regulation. Background Art

[0002] Tracheostomy tubes are medical devices commonly used in emergency situations to maintain airway patency in patients with hypoxemia. They are typically made of polyurethane and consist of an outer tube and an inner tube. The outer tube is inserted into the tracheal opening after a tracheotomy, while the inner tube can be connected to a ventilator or used to manually maintain breathing.

[0003] In the prior art, tracheostomy tube valves are widely used in tracheostomy patients to help them restore speech function and improve swallowing ability. However, the existing valves have fixed airflow resistance and cannot automatically adjust according to the patient's respiratory status, causing discomfort to the patient when coughing or taking deep breaths. Summary of the Invention

[0004] The object of the present invention is to provide a tracheotomy tube valve based on adaptive airflow regulation to solve the problems raised by the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A tracheotomy tube valve based on adaptive airflow regulation, comprising: An inner cannula, the inner cannula being arranged inside the tracheotomy outer cannula, one end of the inner cannula being inserted into the patient's trachea, and the other end of the inner cannula being arranged outside the patient's body; A valve is provided at one end of the inner cannula that is outside the patient's body, and a valve plate is provided inside the valve to control the flow of internal gas; The valve plate slides horizontally in the valve. A gear is provided above the valve plate. The rotation of the gear controls the rotation of the valve plate, thereby realizing the control of the opening amplitude of the valve.

[0006] Furthermore, a positioning ring is fixedly connected to the end of the inner cannula facing the patient's body, and the positioning ring is clamped with the outer cannula cut by Qi Guang. A connector is fixedly connected to the positioning ring, and the connector is connected to the ventilator. The two ends of the valve are respectively threadedly connected to the connector and the end of the inner cannula.

[0007] Furthermore, slide grooves are respectively provided at symmetrical positions on both sides of the valve, and a first slider and a second slider are respectively slidably provided in the two slide grooves. A driving rod is also provided on the first slider and the second slider.

[0008] Furthermore, a tooth groove is provided on the side wall of the slide groove where the first slider is located, and a gear is rotatably installed in the first slider. The gear extends out of the outer walls on both sides of the first slider and engages with the tooth groove for transmission.

[0009] Furthermore, a driving shaft is installed at the axis center of the gear, the lower end of the driving shaft passes through the first slider, and the other end of the driving shaft is fixedly connected to the valve plate.

[0010] Furthermore, a driven shaft is fixedly connected to a symmetrical position of the valve plate connected to the driving shaft, the other end of the driven shaft is mounted on the second slider, and the driven shaft is rotatably connected to the second slider.

[0011] Furthermore, a plurality of groups of micro sensors, processors, storage modules and Bluetooth modules are provided on the side of the valve plate facing the patient's trachea, and the sensors are respectively a temperature and humidity sensor, a flow metering sensor and an air pressure detection sensor.

[0012] Furthermore, the microsensor monitors the patient's respiratory rate, airflow velocity and pressure in real time and sends the data to the cloud server in real time through the Bluetooth module. The patient and his family can view the relevant data through the medical APP. The storage module stores the patient's data information under normal conditions. After the patient reaches respiratory balance, the degree of opening of the valve plate at this time is recorded, and the position of the valve plate is fixed by the driving rod to avoid changes in the tracheotomy width.

[0013] Furthermore, the sensor transmits the monitored data of respiratory rate, airflow velocity and pressure to the processor, and the processor compares the real-time data transmitted by the sensor with the information stored in the storage module. When data abnormality occurs and persists for a certain period of time, the driving rod is used to assist in adjusting the degree of opening of the valve plate. Medical staff can also control the degree of opening of the valve plate through a handheld terminal, and use the Bluetooth module to send abnormal data to the cloud resetter and issue an alarm.

[0014] Furthermore, the method for tracheotomy cannula valve comprises the following steps: S1: The medical staff screws the valve onto the inner cannula and uses the terminal to control the valve plate to move to the end of the valve, so that the valve is completely closed, thus achieving the tube blocking work before extubation, so that the inner cannula can be inserted into the patient's throat more easily; S2: After the patient wears the inner cannula, a pressure difference is formed between the patient's throat and the external air pressure. At the same time, the driving rod can also assist in pushing the structure of the first slider and the second slider, pushing the valve plate to a position where the pressure inside the patient's throat is balanced with the external air pressure. That is, the valve plate is opened to a degree that allows the patient to breathe normally. S3: The storage module records the current position, and causes the driving rod to control the first and second sliders to remain at the current position, thereby preventing the tracheostomy from changing in width during the patient's normal breathing process. S4: When the patient takes a deep breath or coughs, the pressure difference on both sides of the valve plate changes, causing the valve plate to move according to the pressure difference, thereby changing the degree of opening of the valve plate. However, since these processes are short-term changes, the processor will not send an alarm to the cloud; S5: After the sensor detects changes in the patient's respiratory rate, airflow speed and pressure for a certain period of time, the processor determines that the patient is abnormal. The processor controls the drive rod to adjust the degree of opening of the valve plate according to the changes in information monitored by the sensor to make it more suitable for the patient's current condition, and sends a warning to the cloud processor so that medical staff can intervene in the control of the valve plate by the drive rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the valve plate to slide horizontally within the valve by utilizing the changes in air pressure inside and outside the patient's trachea. The meshing transmission structure of gears and tooth grooves allows the valve plate to flip during the horizontal sliding process. After the valve plate rotates to a certain angle, the pressure inside and outside the valve plate is balanced again. This allows the valve opening range to be controlled by the patient's breathing state, avoiding discomfort when the patient coughs or takes a deep breath. 2. Through the structure of a micro sensor and Bluetooth module, the respiratory rate, airflow speed and pressure are monitored in real time, and the data is transmitted to an external device. At the same time, the structure of the drive rod is used to assist in adjusting the opening degree of the valve. When the patient experiences short-term changes in the internal and external pressure of the throat due to deep breathing, coughing and wheezing, the valve plate changes its opening amplitude in accordance with the patient's breathing. If the patient's data is abnormal for a long time, the cloud processor can be used to control the opening amplitude of the valve plate through external intervention, realizing full control of the change of the tracheotomy width. 3. Through the structure of the valve plate and the driving rod, the width of the tracheal incision of the inner cannula can be controlled by the driving rod to control the position of the first and second sliders, so that the opening degree of the valve plate can be adjusted and fixed. In addition, before extubation, the driving rod can be used to control the valve plate to completely block the tracheal incision so as to block the tube before extubation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 Schematic diagram of the cross-sectional structure of the valve of the present invention; Figure 3 Schematic diagram of the cross-sectional structure of the first slider of the present invention; Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram; Figure 5 Schematic diagram of the electric control structure of the present invention.

[0017] In the figure: 1, inner sleeve; 2, positioning ring; 21, connector; 3, valve; 31, slide groove; 32, tooth groove; 4, valve plate; 41, first slider; 42, second slider; 43, gear; 44, driving shaft; 45, driven shaft. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples. Example

[0019] See also Figures 1 to 4 The present invention provides a technical solution: a tracheotomy cannula valve based on adaptive airflow regulation, comprising an inner cannula 1, wherein the inner cannula 1 is arranged inside a tracheotomy outer cannula, one end of the inner cannula 1 is inserted into the patient's trachea, and the other end of the inner cannula 1 is arranged outside the patient's body; A valve 3, the valve 3 being arranged at one end of the inner cannula 1 disposed outside the patient's body, and the valve plate 4 for controlling the internal gas flow is arranged inside the valve 3; The valve plate 4 slides horizontally in the valve 3 . A gear 43 is provided above the valve plate 4 . The rotation of the gear 43 controls the rotation of the valve plate 4 , thereby controlling the opening amplitude of the valve 3 . Example

[0020] The structure of the tracheotomy tube valve based on adaptive airflow regulation disclosed in Example 2 of the present invention is basically the same as that in Example 1, except that, it is characterized in that the end of the inner tube 1 facing the patient's body is fixedly connected to a positioning ring 2, and the positioning ring 2 is clamped with the outer tracheotomy tube of the Qiguang incision tube. A connector 21 is fixedly connected to the positioning ring 2, and the connector 21 is connected to the ventilator. The two ends of the valve 3 are respectively threadedly connected to the connector 21 and the end of the inner tube 1. Example

[0021] The structure of the tracheotomy tube valve based on adaptive airflow regulation disclosed in Example 3 of the present invention is basically the same as that in Example 2, except that slide grooves 31 are respectively provided at symmetrical positions on both sides of the valve 3, and a first slider 41 and a second slider 42 are respectively slidably provided in the two slide grooves 31, and a driving rod is also provided on the first slider 41 and the second slider 42.

[0022] A tooth groove 32 is provided on the side wall of the slide groove 31 where the first slider 41 is located. A gear 43 is rotatably installed in the first slider 41. The gear 43 extends out of the outer walls of both sides of the first slider 41 and engages with the tooth groove 32 for transmission.

[0023] A driving shaft 44 is installed at the axis of the gear 43 . The lower end of the driving shaft 44 passes through the first slider 41 , and the other end of the driving shaft 44 is fixedly connected to the valve plate 4 .

[0024] A driven shaft 45 is fixedly connected to a symmetrical position between the valve plate 4 and the driving shaft 44 . The other end of the driven shaft 45 is mounted on the second slider 42 . The driven shaft 45 is rotatably connected to the second slider 42 . Example

[0025] The structure of the tracheotomy tube valve based on adaptive airflow regulation disclosed in the fourth embodiment of the present invention is basically the same as that in the third embodiment, except that a plurality of groups of micro sensors, processors, storage modules and Bluetooth modules are provided on the side of the valve plate 4 facing the patient's trachea, and the sensors are respectively a temperature and humidity sensor, a flow metering sensor and an air pressure detection sensor.

[0026] The microsensor monitors the patient's respiratory rate, airflow velocity and pressure in real time and sends the data to the cloud server in real time through the Bluetooth module. The patient and his family can view the relevant data through the medical APP. The storage module stores the patient's data information under normal conditions. After the patient reaches respiratory balance, the degree of opening of the valve plate 4 at this time is recorded, and the position of the valve plate 4 is fixed by the driving rod to avoid changes in the tracheotomy width.

[0027] The sensor transmits the monitored data of respiratory rate, airflow velocity and pressure to the processor, and the processor compares the real-time data transmitted by the sensor with the information stored in the storage module. When data abnormality occurs and persists for a certain period of time, the driving rod is used to assist in adjusting the opening degree of the valve plate 4. Medical staff can also control the opening degree of the valve plate 4 through a handheld terminal, and use the Bluetooth module to send abnormal data to the cloud resetter and issue an alarm.

[0028] The specific solution is as follows: when the inner cannula 1 is not inserted, the width of the tracheal incision of the inner cannula 1 can be adjusted and fixed by the valve plate 4, and the tracheal incision is completely blocked by the valve plate 4 so as to be used for blocking the tube before extubation; After the inner cannula 1 is inserted into the outer cannula, the outer cannula is inserted into the patient's trachea to complete the installation; When the patient's condition is stable, the air pressure in the trachea and the external air pressure work together to create a pressure difference between the inside and outside, pushing the valve plate 4 to a position inside the valve 3. At this time, the valve plate 4 remains open, and the opening range of the valve plate 4 balances the air pressure on both sides. When the patient coughs or takes a deep breath, the air pressure in the patient's trachea changes, causing the air pressure inside and outside the valve plate 4 to become unbalanced, causing the valve plate 4 to move horizontally, controlling the first slider 41 and the second slider 42 to slide horizontally in the slide groove 31, so that the valve plate 4 slides again to a position where the internal and external pressures are balanced; During the sliding of the first slider 41, the internal gear 43 meshes with the tooth groove 32 and rotates, causing the gear 43 to rotate. This, in turn, controls the valve plate 4 to flip under the transmission action of the driving shaft 44, that is, controls the opening range of the valve 3 until the air pressure inside and outside the valve plate 4 reaches equilibrium again and the valve plate 4 stops moving. After the patient recovers, the valve plate 4 is reset to its initial position and initial opening range; During the gas flow in the inner cannula 1, the patient's respiratory rate, as well as the airflow speed and pressure through the valve plate 4 are monitored in real time by a micro sensor, and the data is transmitted to the outside world via a Bluetooth module so that medical staff can monitor the patient's specific condition in real time; During installation, the medical staff screws the valve 3 onto the inner cannula 3 and controls the valve plate 4 to move to the end of the valve 3 through the terminal to completely close the valve, thereby achieving tube blocking before extubation and making it easier to insert the inner cannula 1 into the patient's throat. After the patient wears the inner cannula 1, a pressure difference is formed between the patient's throat and the external air pressure. At the same time, the driving rod can also assist in pushing the first slider 41 and the second slider 42 to push the valve plate 4 to a position where the pressure inside the patient's throat is balanced with the external air pressure. That is, the valve plate 4 is opened to a degree that allows the patient to breathe normally. The storage module records the position at this time, so that the driving rod controls the first slider 41 and the second slider 42 to remain at this position, thereby preventing the tracheostomy from changing in width during the patient's normal breathing process. When the patient takes a deep breath or coughs, the pressure difference on both sides of the valve plate 4 changes, causing the valve plate 4 to move according to the pressure difference to change the degree of opening of the valve plate 4. However, since these processes are short-term changes, the processor will not send an alarm to the cloud. After the sensor detects changes in the patient's breathing rate, airflow speed and pressure for a certain period of time, the processor determines that the patient is abnormal. The processor controls the drive rod to adjust the opening degree of the valve plate 4 according to the information changes monitored by the sensor to make it more suitable for the patient's current condition, and sends a warning to the cloud processor so that medical staff can intervene in the control of the valve plate 4 by the drive rod.

[0029] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A tracheotomy tube valve based on adaptive airflow regulation, characterized in that: include: An inner cannula (1), wherein the inner cannula (1) is arranged inside the tracheotomy outer cannula, one end of the inner cannula (1) is inserted into the patient's trachea, and the other end of the inner cannula (1) is arranged outside the patient's body; A valve (3), the valve (3) being arranged at one end of the inner cannula (1) arranged outside the patient's body, and a valve plate (4) for controlling the flow of internal gas being arranged in the valve (3); The valve plate (4) slides horizontally in the valve (3), and a gear (43) is provided above the valve plate (4). The rotation of the gear (43) controls the rotation of the valve plate (4), thereby achieving control of the opening amplitude of the valve (3).

2. The tracheotomy tube valve based on adaptive airflow regulation according to claim 1, characterized in that: The inner cannula (1) is fixedly connected to a positioning ring (2) at one end thereof facing the patient's body, the positioning ring (2) is clamped with the outer cannula of the Qiguang incision, a connector (21) is fixedly connected to the positioning ring (2), the connector (21) is connected to the ventilator, and the two ends of the valve (3) are respectively threadedly connected to the connector (21) and the end of the inner cannula (1).

3. The tracheotomy tube valve based on adaptive airflow regulation according to claim 1, characterized in that: Slide grooves (31) are respectively provided at symmetrical positions on both sides of the valve (3), and a first slider (41) and a second slider (42) are respectively slidably provided in the two slide grooves (31). A driving rod is also provided on the first slider (41) and the second slider (42).

4. The tracheotomy tube valve based on adaptive airflow regulation according to claim 3, characterized in that: A tooth groove (32) is provided on the side wall of the slide groove (31) where the first slider (41) is located. A gear (43) is rotatably installed in the first slider (41). The gear (43) extends out of the outer walls on both sides of the first slider (41) and meshes with the tooth groove (32) for transmission.

5. The tracheotomy tube valve based on adaptive airflow regulation according to claim 4, characterized in that: A driving shaft (44) is installed at the axis of the gear (43), the lower end of the driving shaft (44) passes through the first slider (41), and the other end of the driving shaft (44) is fixedly connected to the valve plate (4).

6. The tracheotomy tube valve based on adaptive airflow regulation according to claim 5, characterized in that: A driven shaft (45) is fixedly connected to a symmetrical position where the valve plate (4) is connected to the driving shaft (44). The other end of the driven shaft (45) is mounted on the second slider (42). The driven shaft (45) is rotatably connected to the second slider (42).

7. The tracheotomy tube valve based on adaptive airflow regulation according to claim 1, characterized in that: A plurality of groups of micro sensors, processors, storage modules and Bluetooth modules are provided on the side of the valve plate (4) facing the patient's trachea, wherein the sensors are respectively a temperature and humidity sensor, a flow metering sensor and an air pressure detection sensor.

8. The tracheotomy tube valve based on adaptive airflow regulation according to claim 7, characterized in that: The micro sensor monitors the patient's respiratory rate, airflow velocity and pressure in real time and sends the data to the cloud server in real time via the Bluetooth module. The patient and his / her family can view the relevant data via the medical APP. The storage module stores the patient's data information under normal conditions. After the patient reaches respiratory balance, the opening degree of the valve plate (4) at this time is recorded, and the position of the valve plate (4) is fixed by using the driving rod to avoid changes in the width of the tracheotomy.

9. The tracheotomy tube valve based on adaptive airflow regulation according to claim 8, characterized in that: The sensor transmits the monitored data of respiratory frequency, airflow velocity and pressure to the processor, and the processor compares the real-time data transmitted by the sensor with the information stored in the storage module. When data abnormality occurs and lasts for a certain period of time, the opening degree of the valve plate (4) is assisted by the driving rod. Medical staff can also control the opening degree of the valve plate (4) through a handheld terminal, and at the same time use the Bluetooth module to send abnormal data to the cloud resetter and issue an alarm.

10. The method for a tracheotomy tube valve based on adaptive airflow regulation according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The medical staff screws the valve (3) onto the inner cannula (1), and controls the valve plate 4 to move to the end of the valve 3 through the terminal, so that the valve is completely closed, thereby achieving the tube blocking work before extubation, so as to better insert the inner cannula 1 into the patient's throat; S2: After the patient wears the inner cannula 1, a pressure difference is formed between the patient's throat and the external air pressure. At the same time, the driving rod can also assist in pushing the first slider 41 and the second slider 42 to push the valve plate 4 to a position where the pressure inside the patient's throat is balanced with the external air pressure. That is, the valve plate 4 is opened to a degree that allows the patient to breathe normally. S3: The storage module records the current position, and controls the driving rod to control the first slider 41 and the second slider 42 to maintain the current position, thereby preventing the tracheostomy from changing in width during the patient's normal breathing process. S4: When the patient takes a deep breath or coughs, the pressure difference on both sides of the valve plate 4 changes, causing the valve plate 4 to move according to the pressure difference, thereby changing the degree of opening of the valve plate 4. However, since these processes are short-term changes, the processor will not send an alarm to the cloud; S5: After the sensor detects changes in the patient's respiratory rate, airflow speed and pressure for a certain period of time, the processor determines that the patient is abnormal. The processor controls the drive rod to adjust the degree of opening of the valve plate 4 according to the changes in information monitored by the sensor to make it more suitable for the patient's current condition, and sends a warning to the cloud processor so that medical staff can intervene in the control of the valve plate 4 by the drive rod.

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