A cannula device integrating esophageal reflux and vomiting reflex detection and an application method thereof

Abstract

The present invention relates to a cannula device for integrated detection of esophageal reflux and vomiting reflex and an application method, including a cannula, and a ring-shaped detection head is provided at the front end of the cannula; a plurality of petal-shaped airbags are distributed on the outer surface of the detection head, and the plurality of airbags are communicated through an air duct, and the other end of the air duct extends outside the cannula; the device further includes an inflation / deflation unit and a barometric pressure sensor; an annular liquid accumulation groove is provided on the inner wall of the detection head, a circular ring-shaped slide rail is provided on the inner wall of the liquid accumulation groove, and a PH detection probe is slidably arranged on the slide rail; a plurality of liquid outlet holes are provided on the outer surface of the detection head, one or more liquid outlet holes are provided in the middle gap between adjacent airbags, and the liquid outlet holes are closed when the airbags are inflated; by applying the method of the present application, reliable monitoring results of vomiting reflex actions and monitoring results of esophageal reflux can be provided for medical staff, so that a reaction can be made immediately when there is a risk of aspiration, providing guarantee for the personal safety of patients.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically, to a cannula device integrating esophageal reflux and vomiting reflex detection and an application method thereof. Background Art

[0002] During the late treatment of various diseases, endotracheal intubation is a common treatment method. However, after intubation, patients may develop stress ulcers, leading to frequent vomiting. Although the respiratory failure condition may be improved, frequent vomiting is extremely likely to cause aspiration after the trachea is removed, resulting in sudden asphyxia of the patient and seriously threatening the patient's life safety;

[0003] Anti-aspiration mainly focuses on two aspects. One is the monitoring of the vomiting reflex action, and the other is the monitoring of esophageal reflux. If the monitoring data of these two states can be obtained, it will be possible for medical staff to make an aspiration judgment. However, currently, the monitoring of esophageal reflux is carried out by monitoring the PH value of esophageal gas. The gas monitoring method has low accuracy, and at the same time, gas monitoring does not mean the presence of physical reflux. Even if the PH of the gas exhaled from the esophagus is monitored to be acidic, it does not mean that there is reflux reaching the throat. This kind of difference makes the current PH monitoring method only a reference in terms of anti-aspiration. Based on this current situation, there is an urgent need for a tracheal cannula device that can detect esophageal reflux and vomiting reflex in real time. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a cannula device integrating esophageal reflux and vomiting reflex detection in view of the above-mentioned defects of the prior art, and also provide an application method of a cannula device integrating esophageal reflux and vomiting reflex detection.

[0005] The technical solution adopted by the present invention to solve its technical problems is:

[0006] Construct a cannula device integrating esophageal reflux and vomiting reflex detection, which includes a cannula, and a circular detection head is provided at the front end of the cannula; a plurality of petal-shaped airbags are distributed on the outer surface of the detection head, and the plurality of airbags are communicated through an air duct, and the other end of the air duct extends outside the cannula; the device further includes an air charging and discharging unit for charging and discharging the air duct and a pressure sensor for detecting the air pressure inside the air duct; an annular liquid accumulation groove is provided on the inner wall of the detection head, a circular slide rail is provided on the inner wall of the liquid accumulation groove, and a PH detection probe for detecting the liquid PH value of the liquid accumulation groove is slidably arranged on the slide rail; a plurality of liquid outlet holes communicating with the liquid accumulation groove are provided on the outer surface of the detection head, one or more of the liquid outlet holes are provided in the middle gap between adjacent airbags, and the liquid outlet holes are closed when the airbags are inflated; the device further includes a control host, and the air charging and discharging unit is controlled by the control host to operate; the control host receives the monitoring data of the pressure sensor and the PH detection probe and feeds back the monitoring results to the outside.

[0007] For the cannula device integrating esophageal reflux and vomiting reflex detection according to the present invention, the internal space of the liquid accumulation groove is arranged with a narrow upper part and a wide lower part, and the slide rail is arranged at the upper end of the internal space of the liquid accumulation groove; the tail of the PH detection probe is arranged on the slide rail, and the head extends into the lower end of the internal space of the liquid accumulation groove.

[0008] For the cannula device integrating esophageal reflux and vomiting reflex detection according to the present invention, the liquid outlet holes are in a water droplet shape with a narrow upper part and a wide lower part, and are directly communicated with the lower end of the internal space of the liquid accumulation groove.

[0009] For the cannula device integrating esophageal reflux and vomiting reflex detection according to the present invention, a flexible buffer sleeve connecting the detection head is provided at the front end of the cannula.

[0010] For the cannula device integrating esophageal reflux and vomiting reflex detection according to the present invention, the connecting wire of the PH detection probe passes through the flexible buffer sleeve.

[0011] For the cannula device integrating esophageal reflux and vomiting reflex detection according to the present invention, an air duct clamping member for clamping the air duct is provided in the flexible buffer sleeve.

[0012] A method for applying a cannula device integrating esophageal reflux and vomiting reflex detection, which is applied to the cannula device integrating esophageal reflux and vomiting reflex detection as described above, and the method includes the steps:

[0013] After placing the detection head in the appropriate position in the throat, the air inlet and outlet unit inflates the air duct. Multiple airbags bulge to squeeze and support the inner wall of the throat. While completing the fixation, the inflation of the airbags will block the liquid outlet holes. During monitoring, the patient lies in a supine position, and the PH detection probe slides to the bottom of the slide rail by its own weight.

[0014] When vomiting reflex movement occurs in the throat, it will squeeze multiple airbags, causing the air pressure inside the air duct to change. The air pressure sensor monitors the air pressure reading and sends it to the control host.

[0015] When esophageal reflux reaches the throat and enters the liquid accumulation tank, the PH detection probe will contact and detect the esophageal reflux, and send the detection result to the control host. Each time the control host receives a PH value detection result lower than the set value, it controls the air inlet and outlet unit to perform an action of deflating first and then inflating. The airbags first contract and then expand. When the airbags contract, the reflux in the liquid accumulation tank drains along the liquid outlet holes.

[0016] The control host sends the collected monitored air pressure reading and PH value data to the outside.

[0017] The beneficial effects of the present invention are as follows: After placing the detection head in the appropriate position in the throat, the air inlet and outlet unit inflates the air duct. Multiple airbags bulge to squeeze and support the inner wall of the throat. While completing the fixation, the inflation of the airbags will block the liquid outlet holes. During monitoring, the patient lies in a supine position, and the PH detection probe slides to the bottom of the slide rail by its own weight. When vomiting reflex movement occurs in the throat, it will squeeze multiple airbags, causing the air pressure inside the air duct to change. The air pressure sensor monitors the air pressure reading and sends it to the control host. When esophageal reflux reaches the throat and enters the liquid accumulation tank, the PH detection probe will contact and detect the esophageal reflux, and send the detection result to the control host. Each time the control host receives a PH value detection result lower than the set value, it controls the air inlet and outlet unit to perform an action of deflating first and then inflating. The airbags first contract and then expand. When the airbags contract, the reflux in the liquid accumulation tank drains along the liquid outlet holes. The control host sends the collected monitored air pressure reading and PH value data to the outside.

[0018] By applying the methods of the present application, not only can the vomiting reflex be directly monitored, but also the monitoring of the vomiting reflex and the pH value monitoring are integrated into one device. The pH value monitoring also directly monitors the esophageal reflux. When performing the pH value monitoring, the changes in the patient's body position, such as lying on the side or lying flat, can also be automatically adjusted by the adaptive movement of the pH detection head in the slide rail. The liquid accumulation tank can accumulate the reflux in the inner bottom of the liquid accumulation tank for the pH detection head to detect, improving the detection reliability. The airbag is also used to discharge the reflux to facilitate the next pH monitoring and ensure the continuity of the monitoring. The overall structure is reasonable and compact, with high integration and small volume, which can provide reliable monitoring results of the vomiting reflex action and esophageal reflux for medical staff. Furthermore, when there is a risk of aspiration, a reaction can be made immediately to ensure the personal safety of the patient. In addition, the sleeve of the present application can also be nested on the trachea of the intubation to monitor the esophageal reflux and vomiting reflex of the patient under mechanical ventilation in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will further illustrate the present invention in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0020] Figure 1 is a cross-sectional view of the sleeve device for integrated esophageal reflux and vomiting reflex detection according to a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0022] The sleeve device for integrated esophageal reflux and vomiting reflex detection according to a preferred embodiment of the present invention, as Figure 1As shown in the figure, it includes a casing 1, and a ring-shaped detection head 2 is provided at the front end of the casing 1; a plurality of petal-shaped airbags 3 are distributed on the outer surface of the detection head 2, and the plurality of airbags 3 are communicated through an air duct 4, and the other end of the air duct 4 extends outside the casing 1; the device further includes an air charging and discharging unit 5 for charging and discharging the air duct and a pressure sensor 6 for detecting the air pressure inside the air duct 4; an annular liquid accumulation groove 20 is provided on the inner wall of the detection head 2, and an annular slide rail 21 is provided on the inner wall of the liquid accumulation groove 20, and a PH detection probe 22 for detecting the liquid PH value of the liquid accumulation groove is slidably arranged on the slide rail 21; a plurality of liquid outlet holes 23 communicated with the liquid accumulation groove are provided on the outer surface of the detection head 2, and one or more liquid outlet holes 23 are provided in the middle gap between adjacent airbags 3, and the liquid outlet holes 23 are closed when the airbags 3 are inflated; the device further includes a control host 7, and the air charging and discharging unit 5 is controlled by the control host 7 to operate; the control host 7 receives the monitoring data of the pressure sensor 6 and the PH detection probe 22, and feeds back the monitoring results to the outside.

[0023] After the detection head 2 is placed in a suitable position in the throat, the air duct 4 is inflated through the air charging and discharging unit 5, and the plurality of airbags 3 bulge to squeeze and support the inner wall of the throat. While completing the fixation, the inflation of the airbags 3 will block the liquid outlet holes 23; during monitoring, the patient is in a lying position, and the PH detection probe 22 slides to the bottom of the slide rail 21 by its own weight; when there is a vomiting reflex movement in the throat, it will squeeze the plurality of airbags 3, causing the air pressure inside the air duct 4 to change, and the pressure sensor 6 monitors the air pressure reading and sends it to the control host 7; when there is esophageal reflux reaching the throat and entering the liquid accumulation groove 20 (the inside of the casing and the detection head can be ventilated, which does not affect the passage of gas and reflux), the PH detection probe 22 will contact and detect the esophageal reflux, and send the detection result to the control host 7; every time the control host 7 receives that the PH value detection result is lower than the set value, it controls the air charging and discharging unit 5 to perform an action of first deflating and then inflating. The airbag 3 first contracts and then expands. When the airbag 3 contracts, the reflux in the liquid accumulation groove 20 is discharged along the liquid outlet hole 23; the control host 7 sends the collected monitoring air pressure reading and PH value data to the outside.

[0024] By applying the methods of the present application, not only can the vomiting reflex be directly monitored, but also the monitoring of the vomiting reflex and the pH value monitoring are integrated into one device. The pH value monitoring also directly monitors the esophageal reflux. When performing the pH value monitoring, the changes in the patient's body position from lying on the side to lying flat can also be automatically adjusted by the adaptive movement of the pH detection head in the slide rail. The liquid accumulation tank can accumulate the reflux in the inner bottom of the liquid accumulation tank and supply it to the pH detection head for detection, improving the detection reliability. The airbag is also used to expel the reflux for the next pH monitoring to ensure the continuity of the monitoring. The overall structure is reasonable and compact, with high integration and small volume, which can provide reliable monitoring results of the vomiting reflex action and esophageal reflux for medical staff. Furthermore, when there is a risk of aspiration, a reaction can be made immediately to ensure the personal safety of the patient.

[0025] Preferably, the internal space of the liquid accumulation tank 20 is arranged with a narrow upper part and a wide lower part, and the slide rail 21 is arranged at the upper end of the internal space of the liquid accumulation tank 20; the tail of the pH detection probe 22 is arranged on the slide rail 21, and the head extends into the lower end of the internal space of the liquid accumulation tank 20. The purpose of adopting this special shape design is that when the reflux is less, it can also be gathered at the lower end of the internal space of the liquid accumulation tank 20 and then detected by the pH detection probe 22, improving the reliability of the reflux detection.

[0026] Preferably, the liquid outlet hole 23 is in the shape of a water droplet with a narrow upper part and a wide lower part, and is directly communicated with the lower end of the internal space of the liquid accumulation tank 20. By adopting this design, when the liquid outlet hole 23 is opened, the reflux in the liquid accumulation tank 20 can flow out quickly.

[0027] Preferably, a flexible buffer sleeve 8 for connecting the detection head is arranged at the front end of the sleeve 1, the connecting wire of the pH detection probe 22 passes through the flexible buffer sleeve 8, and a trachea clamping member for clamping and fixing the trachea 4 is arranged in the flexible buffer sleeve 8. By adopting this design, a buffer space can be provided for the detection head 2, and at the same time, the entanglement between the connecting wire of the pH detection probe 22 and the trachea 4 can be reduced preferably.

[0028] A method for applying a sleeve device integrating esophageal reflux and vomiting reflex detection is applied to the sleeve device integrating esophageal reflux and vomiting reflex detection as described above. Among them, the method includes the steps:

[0029] After the detection head is placed in the appropriate position in the throat, the trachea is inflated through the air charging and discharging unit, and multiple airbags bulge to squeeze and support the inner wall of the throat. While completing the fixation, the inflation of the airbags will block the liquid outlet hole. During the monitoring, the patient is in the lying position, and the pH detection probe slides to the bottom of the slide rail by its own weight.

[0030] When the pharyngeal vomiting reflex movement occurs, multiple air bags will be squeezed, causing the internal air pressure of the air duct to change. The air pressure sensor monitors the air pressure reading and sends it to the control host;

[0031] When esophageal reflux reaches the pharynx and enters the liquid accumulation tank, the PH detection probe will contact and detect the esophageal reflux, and send the detection result to the control host; Each time the control host receives that the detected PH value is lower than the set value, it controls the air charging and discharging unit to perform an operation of first deflating and then inflating. The air bag first contracts and then expands. When the air bag contracts, the reflux in the liquid accumulation tank is discharged along the liquid outlet hole;

[0032] The control host sends the collected monitored air pressure reading and PH value data to the outside;

[0033] Applying the method of the present application can not only directly monitor the vomiting reflex, but also integrate the vomiting reflex monitoring and PH value monitoring into one device. The PH value monitoring also directly monitors the esophageal reflux. When the PH value is monitored, the patient's body position changes such as lying on the side or lying flat can also be automatically adjusted by the adaptive movement of the PH detection head in the slide rail. The liquid accumulation tank can gather the reflux at the inner bottom of the liquid accumulation tank for the PH detection head to detect, improving the detection reliability. It also uses the contraction of the air bag to discharge the reflux, so as to facilitate the next PH monitoring and ensure the continuity of the monitoring; The overall structure is reasonable and compact, with high integration and small volume, which can provide reliable monitoring results of the vomiting reflex action and esophageal reflux for medical staff. Furthermore, when there is a risk of aspiration, it can react immediately to ensure the personal safety of the patient.

[0034] It should be understood that for those of ordinary skill in the art, improvements or changes can be made according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims

1. A cannula device integrating esophageal reflux and vomiting reflex detection, characterized in that: It comprises a sleeve, the front end of which is provided with an annular detection head; the outer surface of the detection head is provided with a plurality of airbags distributed in a petal shape, the plurality of airbags are connected through an airway tube, and the other end of the airway tube extends to the outside of the sleeve; the device also comprises an air charging and discharging unit for charging and discharging the airway tube and an air pressure sensor for detecting the air pressure inside the airway tube; the inner wall of the detection head is provided with an annular liquid accumulation groove, the inner wall of the liquid accumulation groove is provided with a circular slide rail, and a pH detection probe for detecting the pH value of the liquid in the liquid accumulation groove is slidably provided on the slide rail; a plurality of liquid outlet holes connected with the liquid accumulation groove are provided on the outer surface of the detection head, one or more liquid outlet holes are provided in the middle space adjacent to the airbags, and the liquid outlet holes are closed when the airbags are inflated; the device also comprises a control host, and the air charging and discharging unit is controlled and operated by the control host; the control host receives the monitoring data of the air pressure sensor and the pH detection probe, and feeds back the monitoring results to the outside world; After the detection head is placed in the appropriate position of the throat, the airway is inflated through the inflation and deflation unit, and multiple air bags are inflated to squeeze and support the inner wall of the throat. When the fixation is completed, the inflation of the air bags will block the liquid outlet. During monitoring, the patient is in a lying position, and the pH detection probe slides to the bottom of the slide rail by its own weight. When the throat has a vomiting reflex movement, it will squeeze multiple air bags, causing the air pressure inside the airway to change. The air pressure sensor monitors the air pressure reading and sends it to the control host; When esophageal reflux reaches the throat and enters the fluid storage tank, the pH detection probe will contact and detect the esophageal reflux, and send the detection result to the control host; each time the control host receives a pH value detection result lower than the set value, it controls the inflation and deflation unit to deflate first and then inflate, and the airbag contracts first and then expands. When the airbag contracts, the reflux in the fluid storage tank is discharged along the liquid outlet.

2. The cannula device with integrated esophageal reflux and vomiting reflex detection according to claim 1, characterized in that: The internal space of the liquid collection tank is narrow at the top and wide at the bottom, and the slide rail is arranged at the upper end of the internal space of the liquid collection tank; the tail of the pH detection probe is arranged on the slide rail, and the head extends into the lower end of the internal space of the liquid collection tank.

3. The cannula device with integrated esophageal reflux and vomiting reflex detection according to claim 2, characterized in that: The liquid outlet hole is in a water drop shape that is narrow at the top and wide at the bottom, and is directly connected to the lower end of the inner space of the liquid accumulation tank.

4. The cannula device with integrated esophageal reflux and vomiting reflex detection according to claim 2, characterized in that: The front end of the sleeve is provided with a flexible buffer sleeve connected to the detection head.

5. The cannula device with integrated esophageal reflux and vomiting reflex detection according to claim 4, characterized in that: The connecting line of the pH detection probe passes through the flexible buffer sleeve.

6. The cannula device with integrated esophageal reflux and vomiting reflex detection according to claim 4, characterized in that: An airway tube clamping piece for clamping and fixing the airway tube is arranged in the flexible buffer sleeve.

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