TW201637677A - Methods and systems for saliva management provided with an oral apparatus - Google Patents

Abstract

This invention provides methods and systems for saliva management provided with an oral apparatus. One of the present systems includes an oral interface, a fluid flow-direction regulator and a fluid communication tube. The oral interface is placed inside a user's oral cavity and the fluid flow-direction regulator is connected between the oral interface and the fluid communication tube. The fluid communication tube is connected to a negative pressure source to constitute a negative pressure path between the oral interface and the negative pressure source. The saliva inside the user's oral cavity is collected to a liquid collector through the negative pressure path. The fluid flow-direction regulator directs all the fluids flowing through to the fluid communication tube to effectively clear the saliva inside the fluid communication tube while maintaining the negative pressure environment inside the oral cavity.

Description

Saliva treatment system of oral interface device and method thereof

The present invention relates to a medical device for improving the quality of sleep breathing and a method of using the same; in particular, the present invention relates to a saliva treatment system and a method thereof for reducing a sleep apnea phenomenon, snoring, etc., having a negative pressure oral interface device, and a method thereof To remove saliva from the oral and systemic lines.

Sleep Respiratory Suspension (OSA) is a symptom of repeated collapse of the respiratory tract during inhalation, which can cause apnea during sleep. The air pressure in the lungs and respiratory tract is reduced during inhalation. If at this moment, the muscle activity of the upper respiratory tract is reduced, the respiratory tract will tend to collapse. Before the apnea, the airway will begin to close and the patient will often start snoring. A phenomenon in which a snoring patient tries to fight a collapsed respiratory tract. These disorders occur in different locations along the respiratory tract in different patients, but there are two common locations in the throat and nasopharynx.

Patients with moderate to severe sleep apnea symptoms experience lethargy, fatigue, and mental discomfort during the day. In addition to these immediate problems, studies have shown that patients with sleep-discontinuation symptoms use more medical resources, and the risk of medical behavior failure increases, ultimately leading to higher mortality. If all the examples are considered, the mortality rate of patients with severe sleep apnea symptoms is estimated to increase three to six times. Sleep apnea symptoms are also hidden in many cardiovascular diseases, such as systemic hypertension and some degree of pulmonary hypertension. Sleep-discontinuation symptoms increase the risk of myocardial infarction, cerebrovascular disease, and arrhythmia. Sleep breathing discontinuation The interruption of the patient's sleep state at night can also cause excessive sleep during the day and lead to mental inability to concentrate. Due to the compromise of the patient's neurological function, the patient's daily function is impaired during the day. They are more likely to cause mistakes and car accidents. Therefore, if the symptoms of sleep apnea are not treated, it can have serious negative consequences.

There are currently several treatments for patients with sleep-disordered breathing. Oral appliances are used to treat mild to moderate sleep-disordered breathing, but they often do not work well and can cause damage to the gums and teeth of patients. There are some procedures for treating sleep-disordered breathing, but these surgical procedures are invasive, expensive, and painful, with recovery periods of up to six months. The most common treatment for moderate to severe sleep apnea symptoms in adults is the use of a Constant Positive Airway Pressure (CPAP) Machine. Positive pressure breathing apparatus consists of a mask, a pump and a humidifier. The positive pressure respirator continuously blows high pressure air into the patient's nasal passages to keep the patient's airway clear during sleep. Positive pressure respirators are quite effective, but they can cause unpleasant side effects such as dry throat and blocked nasal passages. Patients who use positive pressure respirators often experience swelling and headaches in the morning. Positive pressure breathing apparatus also makes users and their families feel noisy and uncomfortable. Positive pressure breathing apparatus is the first line and gold standard treatment method today, but it has low adaptability due to its serious side effects.

A current improvement is to apply a negative pressure in the patient's mouth, and to pull the patient's tongue and soft palate forward by negative pressure to maintain the airway. For example, U.S. Patent No. 5,957,133, U.S. Patent Application Serial No. 2005/0,166,928, and No. 2006/0,096,600. Although theoretically feasible, these prior art techniques use large structures to clamp the teeth and/or hold and position the tongue. Furthermore, the negative pressure system is applied directly to the soft tissue of the tongue to keep the tongue positioned in the oral cavity. However, these practices can take up a lot of space in the mouth, causing discomfort and damage to teeth, gums and soft tissues. At the same time, the presence of larger devices can cause excessive salivation and nausea. Other major drawbacks of these practices still include that these oral devices involve surgical anatomy, which would require a special technician to provide a customized oral interface for each patient.

In addition, the use of a negative pressure oral interface device will face saliva staying in the aforementioned oral interface. The line between the face device and the negative pressure source causes blockage of the line and a pressure difference between the mouth interface device and the source of negative pressure, and even adversely affects the maintenance of the negative pressure environment inside the oral cavity.

In one aspect, the present invention provides a saliva treatment system for an oral interface device that continuously or optionally vents air into a system conduit while maintaining a negative pressure environment within the user's mouth during operation of the system. In order to facilitate the removal of saliva in the oral interface device and the aforementioned pipeline.

In another aspect, the present invention provides a method for detecting the internal pressure of a liquid storage tank by detecting the liquid in the liquid storage tank to monitor whether the liquid capacity in the liquid storage tank is full, thereby effectively processing the oral interface device and the pipeline in the system of the present invention. saliva.

In yet another aspect, the present invention provides a ventilated oral interface that can be applied to the system of the present invention, through which the vented oral interface device facilitates expulsion of air from the user's mouth to the surrounding environment. .

In another aspect, the present invention provides a method for measuring a liquid capacity in a reservoir of a saliva processing system of the aforementioned oral interface device, comprising placing the oral interface device in a user's mouth and connecting a negative through the system a source of pressure to form a negative pressure path between the user's mouth and the source of negative pressure, and saliva in the oral cavity of the user is collected into the reservoir via the negative pressure path; continuously measuring the reservoir intermittently The pressure value in the liquid tank; and determining the liquid capacity in the liquid storage tank according to the measured pressure value, so as to facilitate the user to determine whether the liquid storage tank needs to be replaced or cleaned.

In one aspect of the invention, the present invention provides a saliva processing system for an oral interface device that includes an oral interface device for placement in a user's mouth to provide a user's mouth. a fluid passageway having a first interface end and a second interface end for restricting all fluids from flowing to the second interface end thereof, the first interface end being connected to the fluid port The fluid passage of the interface device; and a communication tube having a first open end and a second open end, wherein the The first open end is connected to the second interface end of the fluid aligner, and the second open end is connected to a liquid storage tank and a negative pressure source, thereby being between the user's oral cavity and the negative pressure source A negative pressure path is formed in which saliva in the oral cavity of the user is collected in the reservoir through the negative pressure path.

In another aspect of the invention, the present invention provides a saliva treatment system for an oral interface device, comprising: an oral interface device for placement in a user's mouth for in the user's mouth Providing at least one fluid passage, the oral interface device having an extension protruding from the outside of the user's mouth, the extension having a first flow passage and a second flow passage, all communicating with the inside of the user's mouth, the first flow a vacuum activated pressure release valve is disposed at one end of the outer cavity; and a communication tube has a first open end and a second open end, the first open end being connected to the second flow path of the oral interface device And the second open end is connected to a liquid storage tank and a negative pressure source, thereby forming a negative pressure path between the interior of the user's mouth and the negative pressure source; wherein, in the case of a predetermined negative pressure value, the The pressure relief valve is activated to allow ambient air to pass into the user's mouth through the first flow path, and the saliva flowing in the oral cavity and the saliva flowing in the communication tube are carried to the liquid storage tank by the flow of the introduced air

In the aspect of the oral interface device of the present invention, the present invention provides a breathable oral interface comprising a flexible barrier for being placed between a user's lips and teeth. The flexible barrier has at least one one-way valve to limit the flow of air in the oral cavity of the user to the outside of the oral cavity via the one-way valve; an extension member is formed on one side of the flexible barrier and protrudes from the use And a flexible airflow conduit through the flexible barrier and the extension, the flexible airflow conduit having a first open end extending beyond the mouth of the user for communication with The negative pressure source and the opposite second opening end are disposed between the user's tongue and the upper jaw.

In the aspect of the oral interface device of the present invention, the present invention further provides an oral interface device comprising a flexible barrier for being disposed between a user's lips and teeth; and an extension member forming On one side of the flexible barrier and protruding from the user port And a flexible airflow conduit having a first open end extending beyond the mouth of the user and communicating with a negative The pressure source and the opposite second opening end are disposed between the user's tongue and the upper jaw; wherein the extension member has a first flow path and a second flow path respectively formed on the flexible air flow conduit The opposite side of the user's mouth is connected to the inside of the user's mouth. At least one of the first flow channel and the second flow channel is provided with a check valve away from one end of the user's mouth for restricting the user's mouth. The air flows to the outside of the mouth via the one-way valve.

1, 5, 6‧ ‧ saliva treatment system for oral interface devices

11, 51‧‧‧ three-way connector

12, 52, 62‧‧‧ connected pipes

13, 53, 511, 252, 604‧‧ ‧ check valves

14, 55, 64‧ ‧ liquid storage tank

15, 56, 65‧‧‧ negative pressure source

17, 58, 67‧ ‧ timer

18, 59, 68‧ ‧ control unit

19, 60, 69‧‧‧ warning devices

50‧‧‧Fluid aligner

54, 54a, 54b, 602‧‧‧ Vacuum activated pressure relief valve

100, 200, 202, 500, 600, 600a, 600b‧‧‧ mouth interface devices

110, 210, 212, 510, 610‧‧‧ flexible airflow duct

120, 220, 222, 520, 620‧ ‧ first open end

130, 230, 232, 530, 630‧‧‧ second open end

150, 250, 550, 650 ‧ ‧ flexible barrier

111‧‧‧Flexible intermediate section

131‧‧‧Greater structure

140, 240, 242, 640‧‧‧ through holes

151‧‧‧Flexible center part

214, 612‧‧‧ first runner

215, 613‧‧‧ second runner

216, 614‧‧‧ third runner

260, 262‧‧ ‧ oral area between the tongue and the soft/hard sputum

540a, 540b‧‧‧ ontology

542a, 544a‧‧‧ first room

542b, 544b‧‧‧ second room

546a, 546b‧‧‧ propulsion valve

547a, 547b‧‧ ‧ spring

548a, 548b‧‧ ‧ spring seat

660‧‧‧movable convex parts

680‧‧‧Rotatable hollow pipe fittings

The first figure is a first embodiment of a saliva treatment system of the oral interface device of the present invention.

The first A is a perspective view of the oral interface device of the first figure; the first B is a top view of the oral interface device of the first figure placed in a user's mouth.

2A and 2B are top cross-sectional views of a first variation and a second variation of the oral interface device of the first diagram.

The third picture is a pressure-time relationship diagram.

The fourth figure is a pressure-liquid capacity relationship diagram, and the fifth figure is a second embodiment of the saliva treatment system of the oral interface device of the present invention.

Fig. 5A is a schematic enlarged cross-sectional view of the fluid director of the saliva treatment system of the fifth figure.

The fifth B-1 diagram and the fifth B-2 diagram are enlarged cross-sectional views of an embodiment of the vacuum activated pressure release valve of the fifth diagram in the closed and open states, respectively.

The fifth C-1 diagram and the fifth C-2 diagram are enlarged cross-sectional views of another embodiment of the vacuum activated pressure release valve of the fifth diagram in the closed and open states, respectively.

The sixth figure is one of the third specific saliva treatment systems of the oral interface device of the present invention. Example.

The sixth A-1 diagram and the sixth A-2 diagram are schematic cross-sectional views of the first variation of the saliva treatment system of the sixth diagram in different use states.

The sixth B-1 diagram and the sixth B-2 diagram are schematic cross-sectional views of the second variation of the saliva treatment system of the sixth diagram in different use states.

The objects, spirits and advantages of the invention will be apparent from the description of the appended claims.

The first figure is a first embodiment of a saliva treatment system of the oral interface device of the present invention. In a first embodiment, the present invention provides a saliva treatment system 1 for an oral interface device comprising an oral interface device 100, a tri-way connector 11 and a second one-way valve A fluid flow regulator formed by a one-way valve 13 , a communication tube 12 , a liquid storage tank 14 , a negative pressure source 15 , a pressure sensor 16 , a timer 17 , and a Control unit 18 and a warning device 19. The mouth interface device 100 is the same as the mouth device disclosed in Japanese Patent Application No. 103101121, the priority of which is hereby incorporated by reference. . The specific three-dimensional structure of the oral interface device 100 is as shown in FIG. 1A of the present application, and the first B is a top view of the oral interface device 100 placed in a user's mouth. The oral interface device 100 is an integrally formed device comprising a flexible barrier 150 and a flexible airflow conduit 110, wherein the flexible barrier 150 is disposed between a user's lips and teeth. To facilitate the secure attachment of the oral interface device 100 to the user's mouth; preferably, the flexible barrier 150 is placed between the user's lips and the front teeth, and the flexibility The barrier 150 has a flexible central portion 151 for conforming to the contour of the front and rear teeth of the user to accommodate different tooth configurations of different users; the flexible airflow conduit 110 is in a middle The flexible tube is shaped and passes through the flexible central portion 151 of the flexible barrier 150, the flexible airflow conduit 110 The first open end 120 is disposed outside the user's mouth and is configured to communicate with a first interface end of the three-way connector 11. The flexible air flow conduit 110 further has an opposite second open end. 130, configured to be disposed between the user's tongue and the upper jaw; preferably, the flexible airflow conduit 110 is placed along the user's tongue centerline. The flexible airflow conduit 110 can be conformable to the upper jaw contour and the tongue contour of the user, and the flexible airflow conduit 110 has a flexible intermediate section 111 formed thereon. Between the barrier 150 and the second open end 130 and adjacent to the flexible barrier 150, the flexible intermediate section 111 has a narrower and thinner structure than other portions of the flexible airflow duct 110. In order to facilitate the conformity of the user's upper jaw contour and tongue contour. In other words, the flexible intermediate section 111 can conform to the upper jaw profile of different users. The flexible airflow duct 110 further has at least one through hole 140 formed in the flexible intermediate section 111 near the central area of the flexible barrier 150, and the through hole 140 is connected to the flexible airflow duct 110. One side. Preferably, the through hole 140 is laterally communicated with the flexible air flow duct 110 with respect to the hollow tube direction of the flexible air flow duct 110. The second open end 130 of the flexible airflow duct 110 has a wider structure 131 than the flexible intermediate section 111 to increase the structural strength of the flexible airflow duct 110. The flexible airflow conduit 110 avoids collapse when pressed by the user's tongue and upper jaw.

The cross-sectional view of the three-way connector 11 is the same as that of the three-way connector 51 of FIG. The first interface end of the first open end 120 of the oral interface device 100 is provided with a first one-way valve (not shown in the first figure), the first one-way The valve is the same as the first one-way valve 511 shown in FIG. A to restrict the flow of fluid in the oral cavity of the user to the three-way connector 11. A first open end of the connecting tube 12 communicates with a second interface end of the three-way connecting member 11 , and a second open end of the connecting tube 12 communicates with the liquid storage tank 14 . The second one-way valve 13 is connected to a third interface end of the three-way connecting member 11 for restricting ambient air from flowing to the three connecting members 11 via the second one-way valve 13 . In the first embodiment of the present invention, the three-way connector 11 and the second one-way valve 13 constitute the fluid director. It is used to restrict all fluids from flowing to the communication tube 12 via the second interface end of the three-way connector 11. In other words, after the saliva treatment system 1 of the oral interface device of the present invention is activated, the fluid flow direction is as indicated by the arrow in the first figure. The negative pressure source 15 is connected to the liquid storage tank 14. The present invention can start/stop the negative pressure source 15 via the control unit 18 or manually, for example, after the negative pressure source 15 is activated, the present invention. The saliva treatment system 1 of the interface device forms a negative pressure path between the inside of the user's mouth and the negative pressure source 15 to facilitate the evacuation of air and saliva in the oral cavity of the user via the negative pressure path, and Saliva can be collected in the reservoir 14. Furthermore, during the startup of the saliva treatment system 1 of the oral interface device of the present invention, as shown by the arrow in the first figure, ambient air can be introduced into the communication tube via the second check valve 13 and the three-way connector 11. 12, in order to facilitate the collection of saliva remaining in the communication tube 12 to the reservoir 14, thereby preventing the difference in pressure between the interior of the user's mouth and the negative pressure source 15 due to residual saliva in the communication tube 12. Moreover, it is possible to prevent the communication tube 12 from being blocked by saliva, thereby maintaining the negative pressure path between the inside of the user's mouth and the negative pressure source 15.

In addition, in a variation of the first embodiment (not shown), the negative pressure source 15 of the saliva processing system 1 of the oral interface device of the present invention may also communicate with the communication tube 12 and the reservoir. The liquid pressure source 15 can be started/stopped between the liquid tanks 14 via the control unit 18 or by an artificial means.

In another aspect, the saliva treatment system 1 of the oral interface device of the present invention can continuously measure the saliva capacity in the reservoir 14 intermittently to monitor whether the saliva capacity in the reservoir 14 is full, so as to maintain the entire system in a normal state. Under operating conditions. In the first embodiment of the present invention, the saliva processing system 1 of the oral interface device activates/stops the time calculation operation of the timer 17 through the control unit 18, and the timer 17 can be intermittently started after being activated. After the counting time reaches a set time period t, a notification signal is sent to the control unit 18, and a pressure value measured by the pressure sensor 16 is read via the control unit 18. The pressure sensor 16 is connected to the liquid storage tank 14 for measuring the pressure value inside the liquid storage tank 14. In short, the timer 17 is activated After a period of time t, a notification signal is sent to the control unit 18 to notify the control unit 18 to read a pressure value measured by the pressure sensor 16. In this way, the control unit 18 can continuously read the pressure value sensed by the pressure sensor 16 intermittently. The control unit 18 then determines the volume of liquid in the reservoir 14 based on the read pressure value. In addition, the length of the set time period t can be adjusted as needed, for example, the control unit 18 can be periodically read the pressure value measured by the pressure sensor 16.

The method of measuring the liquid capacity in the liquid storage tank 14 in the saliva processing system 1 of the oral interface device of the present invention is described in detail below.

Referring to Table 1 below, the first column of Table 1 shows the liquid capacity inside the liquid storage tank 14, and the value of each field represents the pressure value measured by the liquid storage tank 14 of the liquid capacity shown in the first column of the field. (The pressure value is in mmHg), and the time interval of the upper and lower pressure values measured by the same field is the same length, for example, T ₂ -T ₁ =t, and T ₃ -T ₂ =t. As can be seen from Table 1, when the liquid capacity inside the liquid storage tank 14 is different for a certain set time period t, the measured pressure value inside the liquid storage tank 14 will be different. For example, the pressure value shown in column 14 of the pressure value of Table 1 can be clearly seen that when the timer 17 is set to be separated by a set period of the same length of time (for example, T ₁₄ ), the control unit 18 is notified to read the pressure sensor. The pressure value measured by 16 is increased with the increase of the liquid capacity inside the liquid storage tank 14 (0 ml is increased to 80 ml), and the pressure value inside the liquid storage tank 14 is also increased (-71.0922 mmHg to -33.7023 mmHg).

Referring to the third figure, it is a pressure-time relationship diagram, wherein the Y axis represents the pressure value inside the liquid storage tank 14, and the X axis represents the time zone t counted by the timer 17, curve a, curve b, curve c The curve d, the curve e, the curve f, the curve g, the curve h and the curve i represent the liquid contents in the liquid storage tank 14 of 80 ml, 70 ml, 60 ml, 50 ml, 40 ml, 30 ml, 20 ml, 10 ml and 0 ml. The fourth figure is a pressure-liquid capacity relationship diagram, which is obtained by converting the pressure value and the liquid capacity listed in the 15th row of Table 1. It can be seen that when the timer 17 is notified every the set time period T When the control unit 18 reads the internal pressure value of the liquid storage tank 14 measured by the pressure sensor 16, when the liquid capacity inside the liquid storage tank 14 is different, the measured pressure value also changes. The control unit 18 is built on a period T is set to the timer 17 counts the pressure should be ₁₅ - the reservoir fluid volume correspondence table, for example, by the fourth system conversion come FIG. When the control unit 18 reads the pressure value of the liquid storage tank 14, the liquid capacity value inside the liquid storage tank 14 can be determined according to the pressure-storage liquid capacity mapping table, and the liquid capacity value is determined. It is sent to the warning device 19, and a warning signal is sent through the warning device 19, thereby detecting whether the liquid capacity in the liquid storage tank 14 is full. In addition, the control unit 18 can also be built with a different set time period t corresponding to the timer 17 (for example, T ₂ , T ₃ , T ₄ , T ₅ , . . . , T ₁₀ , T ₁₁ ...) a plurality of pressure-storage liquid capacity mapping tables, if necessary, adjusting the time during which the control unit 18 reads the internal pressure value of the liquid storage tank 14 and determining according to the corresponding pressure-storage liquid capacity correspondence table The liquid storage tank 14 has a liquid capacity.

2A and 2B are top cross-sectional views of a first variation and a second variation of the oral interface device 100 of the first embodiment. In the mouth of the present invention In the saliva treatment system 1 of the interface device, the oral interface device 100 of the first modification and the second modification can be replaced by the oral interface device. In the first variation shown in FIG. 2A, the one-part interface device 200 of the present invention includes a flexible barrier 250 and a flexible airflow conduit 210. The flexible airflow conduit 210 has a first open end 220 disposed outside the user's mouth for communicating with a first interface end of the three-way connector 11, the flexible airflow conduit 210 further having a relative A second open end portion 230 is provided for the space between the tongue and the upper jaw of the user. The dotted line area indicated by the reference numeral 260 represents the oral region between the tongue and the soft/hard palate. The flexible airflow conduit 210 further has at least one through hole 240 formed near a central region of the flexible barrier 250, and the through hole 240 is in communication with the flexible airflow conduit 210. Preferably, the through hole 240 is transversely communicated with the flexible air flow conduit 210 with respect to the hollow tubular body direction of the flexible air flow conduit 210. The body shape of the flexible airflow conduit 210 is the same as that of the flexible airflow conduit 110 and will not be repeated here. The flexible barrier 250 has an extension extending toward the first open end 220 of the flexible airflow conduit 210 to protrude beyond the mouthpiece and the flexible airflow conduit 210 passes through the extension. The flexible barrier 250 has at least one one-way valve 252 through which air in the oral cavity flows to the exterior of the oral cavity as the user opens his mouth to breathe, as indicated by the arrows. In the second variation shown in FIG. B, the one-part interface device 202 of the present invention includes a flexible barrier 250 and a flexible airflow conduit 212. The flexible airflow conduit 212 has a first open end 222 disposed outside the user's mouth for communicating with a first interface end of the three-way connector 11, the flexible airflow conduit 212 further having a relative A second open end 232 is provided for the space between the tongue and the upper jaw of the user. The dotted line area referred to by the component number 262 represents the oral region between the tongue and the soft/hard palate. The flexible air flow conduit 212 further has at least one through hole 242 formed near a central region of the flexible barrier 250, and the through hole 242 is in communication with the flexible air flow conduit 212. Preferably, the through hole 242 is transversely communicated with the flexible air flow conduit 212 with respect to the hollow tubular body direction of the flexible air flow conduit 212. The body shape of the flexible airflow conduit 212 is coupled to the flexible airflow conduit 110 The same, will not be repeated here. The flexible barrier 250 has an extension extending toward the first open end 222 of the flexible airflow conduit 212 to protrude beyond the user's mouth, and the flexible airflow conduit 212 passes through the extension, and A first flow channel 214, a second flow channel 215 and a third flow channel 216 are formed in the extension, wherein the first flow channel 214 and the third flow channel 216 are formed on opposite sides of the second flow channel 215. . The first flow channel 214, the second flow channel 215, and the third flow channel 216 are in communication with the interior of the oral cavity of the user, and the first flow channel 214 and the third flow channel 216 are adjacent to the port of the first open end 222. A one-way valve is provided to allow air in the user's mouth to flow to the outside of the oral cavity via the one-way valves, as indicated by the arrows.

Figure 5 is a second embodiment of a saliva processing system of the oral interface device of the present invention. In this second embodiment, the present invention provides a saliva treatment system 5 for an oral interface device comprising an oral interface device 500, a fluid flow regulator 50, a communication tube 52, and a reservoir. The liquid tank 55, a negative pressure source 56, a pressure sensor 57, a timer 58, a control unit 59 and a warning device 60. The mouth interface device 500 is the same as the mouth interface device 100 of the first embodiment shown in the first figure. The mouth interface device 500 is an integrally formed device, and includes at least one flexible barrier 550 and a a flexible airflow duct 510 having a first open end 520 disposed outside the user's mouth for communication with the fluid directional device 50, the flexible airflow conduit 510 having another The opposite second opening end 530 is configured to be disposed between the tongue of the user and the upper jaw. The fluid aligner 50 includes a three-way connector 51, a second one-way valve 53, and a vacuum-activated pressure relief valve 54. 5A is an enlarged schematic cross-sectional view of the fluid aligner 50. The three-way connector 51 has a first interface end, a second interface end, and a third interface end, wherein the first interface end is provided with a first a one-way valve 511 is connected to the first open end 520 of the flexible airflow conduit 510, and the fluid in the user's mouth flows to the three-way connector 51 via the first one-way valve 511, the second The interface end communicates with a first open end of the communication tube 52, and a second open end of the communication tube 52 communicates with the liquid storage tank 55. The reservoir 55 is in communication with the negative pressure source 56. When the negative pressure source After the start of 56, the inside of the user's mouth and the negative pressure source 56 constitute a negative pressure path. The second check valve 53 is disposed at the third interface end of the three-way connector 51, and the vacuum activated pressure release valve 54 is coupled to one end of the second check valve 53 with respect to the three-way connector 51. The fifth B-1 diagram and the fifth B-2 diagram are enlarged cross-sectional views of an embodiment of the vacuum activated pressure release valve 54, and the vacuum activated pressure relief valve 54a provided by the embodiment shown in the fifth embodiment B-1 is The closed state includes a body 540a, a push valve 546a, a spring 547a, and a spring seat 548a. The main body 540a is internally provided with a partitioning plate to divide the main body 540a into a first chamber 542a and a second chamber 544a. The first chamber 542a is connected to the surrounding air, and the second chamber 544a is connected to the surrounding air. Connected to the second one-way valve 53, the propulsion valve 546a is movably disposed in the first chamber 542a and passes through the passage. When the vacuum actuated pressure release valve 54a is not activated, the push valve 546a occupies the entire space of the passage, so that the fluid of the first chamber 542a is isolated from the second chamber 544a to prevent ambient air from entering the second chamber. Room 544a. The spring seat 548a is disposed on a surface of the partition in the first chamber 542a, and the spring 547a abuts between the propulsion valve 546a and the spring seat 548a. The fifth B-2 diagram shows that the vacuum activated pressure release valve 54a is in an open state, and the negative pressure value of the negative pressure path between the user's oral cavity and the negative pressure source 56 reaches the vacuum activated pressure release valve 54a. When the threshold is activated, a pressure difference between the first chamber 542a and the second chamber 544a causes ambient air to push the propulsion valve 546a forward, thereby forming an air flow passage between the diaphragm passage and the propulsion valve 546a. The ambient air enters the second chamber 544a via the air flow passage, and then enters the communication tube 52 via the second one-way valve 53 and the second interface end of the three-way connector 51. The surrounding air that is introduced can carry saliva remaining in the communication tube 52 to the reservoir 55. As can be seen from the fifth figure, the fluid directional device 50 formed by the three-way connecting member 51, the first one-way valve 511, the second one-way valve 53, and the vacuum-starting pressure release valve 54 can limit all The fluid flows to the communication pipe 52. In other words, after the saliva treatment system 5 of the oral interface device of the present invention is activated, the fluid flow direction is as indicated by the arrow in the fifth figure. The negative pressure source 56 is in communication with the reservoir 55, and the present invention can be The control unit 59 can manually start/stop the negative pressure source 56. After the negative pressure source 56 is activated, the saliva treatment system 5 of the oral interface device of the present invention is inside the user's mouth and the negative pressure. A negative pressure path is formed between the sources 56 to facilitate evacuation of air and saliva from the oral cavity of the user via the negative pressure path, and saliva can be collected in the reservoir 55. Furthermore, during the activation of the saliva treatment system 5 of the oral interface device of the present invention, as indicated by the arrow in the fifth figure, ambient air can pass through the second check valve 53 and the vacuum actuated pressure release valve 54 and the three directions. The connecting member 51 is connected to the connecting tube 52 to facilitate the saliva staying in the communicating tube 52 to be carried by the air and collected into the liquid storage tank 55, thereby preventing the connecting tube 52 from being left by the saliva. The difference in pressure between the interior of the oral cavity and the negative pressure source 56 prevents the communication tube 52 from being blocked by saliva, thereby maintaining a negative pressure path between the interior of the user's mouth and the negative pressure source 56.

The fifth C-1 diagram and the fifth C-2 diagram are enlarged cross-sectional views of another embodiment of the vacuum activated pressure release valve 54, and the vacuum activated pressure relief valve 54b provided by the embodiment shown in the fifth C-1 is a system. In a closed state, it includes a body 540b, a push valve 546b, a spring 547b, and a spring seat 548b. The body 540b is internally provided with a partition having a passage to divide the body 540b into a first chamber 542b and a second chamber 544b. The first chamber 542b is connected to the surrounding air, and the second chamber 544b Connected to the second one-way valve 53, the propulsion valve 546b is movably disposed in the first chamber 542b and passes through the passage. When the vacuum activated pressure release valve 54b is not activated, the push valve 546b occupies the entire space of the passage, so that the fluid of the first chamber 542b is isolated from the second chamber 544b to prevent ambient air from entering the second chamber. Room 544a. The spring seat 548b is disposed on a surface of the partition in the first chamber 542b, and the spring 547b abuts between the propulsion valve 546b and the spring seat 548b. The fifth C-2 diagram shows that the vacuum activated pressure release valve 54b is in an open state, and the negative pressure value of the negative pressure path between the user's oral cavity and the negative pressure source 56 reaches the vacuum activated pressure release valve 54b. When the threshold is activated, a pressure difference between the first chamber 542b and the second chamber 544b causes ambient air to push the propulsion valve 546b forward, thereby An air flow path is formed between the partition passage and the propulsion valve 546b, so that ambient air enters the second chamber 544b via the air passage, and then the second check valve 53 and the third joint 51 The two interface ends open into the communication tube 52. The surrounding air that is introduced can carry saliva remaining in the communication tube 52 to the reservoir 55.

In addition, in a variation of the second embodiment (not shown), the negative pressure source 56 of the saliva processing system 5 of the oral interface device of the present invention may also communicate with the communication tube 52 and the reservoir. The liquid pressure source 55 can be activated/stopped via the control unit 59 or by an artificial means.

In another aspect, the saliva processing system 5 of the oral interface device of the present invention can continuously measure the saliva capacity in the reservoir 55 intermittently to monitor whether the saliva capacity in the reservoir 55 is fully loaded to facilitate maintaining the entire system in a normal state. Under operating conditions. In the second embodiment of the present invention, the saliva processing system 5 of the oral interface device activates/stops the time calculation operation of the timer 58 through the control unit 59, and the timer 58 can be intermittently started after being activated. After the counting time reaches a set time period t, a notification signal is sent to the control unit 59, and a pressure value measured by the pressure sensor 57 is read via the control unit 59. The pressure sensor 57 is connected to the liquid storage tank 55 for measuring the pressure value inside the liquid storage tank 55. In short, after the timer 58 is activated, a notification signal is sent to the control unit 59 every time t to notify the control unit 59 to read a pressure value measured by the pressure sensor 57. In this way, the control unit 59 can continuously read the pressure value sensed by the pressure sensor 57 intermittently. The control unit 59 then determines the liquid volume in the reservoir 55 based on the read pressure value. In addition, the length of the set time period t can be adjusted as needed, for example, the control unit 59 can periodically read the pressure value measured by the pressure sensor 57.

The method for measuring the liquid capacity in the liquid storage tank 55 in the saliva processing system 5 of the oral interface device of the present invention is the same as the method of the system 1 of the first specific example shown in the first figure, and will not be repeated here.

The sixth figure is one of the third specific saliva treatment systems of the oral interface device of the present invention. Example. In the third embodiment, the present invention provides a saliva treatment system 6 for an oral interface device, which includes an oral interface device 600, a communication tube 62, a reservoir 64, a negative pressure source 65, and a pressure. The sensor 66, a timer 67, a control unit 68 and a warning device 69. The mouth interface device 600 is an integrally formed device, and includes at least a flexible barrier 650 and a flexible airflow conduit 610 having a first open end 620 disposed on the user. The outside of the mouth is connected to a first open end of the connecting pipe 62, and a second open end of the connecting pipe 62 communicates with the liquid storage tank 64. The flexible air flow conduit 610 further has an opposite second opening end 630 for being disposed in a space between the user's tongue and the upper jaw. The flexible airflow duct 610 further has a flexible intermediate section formed between the flexible barrier 650 and the second open end 630 and located adjacent to the flexible barrier 650. The flexible intermediate section The segment has a narrower, thinner configuration than the other portions of the flexible airflow conduit 610 to facilitate conformance to the user's upper jaw contour and tongue contour. In other words, the flexible intermediate section can conform to the upper jaw contour of different users. The flexible air flow conduit 610 further has at least one through hole 640 formed in the flexible intermediate portion near the central region of the flexible barrier 650. Preferably, the through hole 640 is opposite to the flexible airflow. The hollow body of the conduit 610 is oriented transversely to the flexible flow conduit 610. The second open end 630 of the flexible airflow conduit 610 has a wider structure than the flexible intermediate section to increase the structural strength of the flexible airflow conduit 610 to provide flexibility. The airflow conduit 610 avoids collapse when pressed by the user's tongue and upper jaw. The flexible barrier 650 has an extension extending toward the first open end 620 of the flexible airflow conduit 610 to protrude beyond the user's mouth, and the flexible airflow conduit 610 passes through the extension, and A first flow channel 612, a second flow channel 613 and a third flow channel 614 are formed in the extension member, wherein the first flow channel 612 and the third flow channel 614 are formed on opposite sides of the second flow channel 613. The flexible airflow conduit 610 forms the second flow passage 613 through a portion of the extension. The first flow channel 612, the second flow channel 613, and the third flow channel 614 are in communication with the interior of the oral cavity of the user, and the first flow channel 612 is adjacent to the port of the first open end 620. A vacuum activated pressure release valve 602 is disposed. The third flow passage 614 is adjacent to the port of the first open end 620 to provide a one-way valve 604. When the user's oral internal negative pressure reaches the vacuum activated pressure release valve 602 When the threshold is activated, the vacuum actuated pressure relief valve 602 valve is opened and ambient air is introduced into the interior of the user's mouth via the vacuum activated pressure relief valve 602. The aforementioned ambient air that is introduced facilitates carrying saliva inside the user's mouth and saliva remaining in the communication tube 62 to the reservoir 64. The one-way valve 604 is configured to restrict the flow of air inside the user's mouth through the one-way valve 604 to the surrounding environment. The embodiment of the vacuum activated pressure release valve 602 can take the specific embodiments shown in the fifth B-1 and fifth B-2 and fifth C-1 and fifth C-2, and no longer Retelling. The negative pressure source 65 is connected to the liquid storage tank 64. The present invention can start/stop the negative pressure source 65 via the control unit 68 or manually, for example, after the negative pressure source 65 is activated. The saliva treatment system 6 of the interface device forms a negative pressure path between the inside of the user's mouth and the negative pressure source 65 to facilitate the evacuation of air and saliva in the oral cavity of the user via the negative pressure path, and Saliva can be collected in the reservoir 64. Furthermore, during the startup of the saliva treatment system 6 of the oral interface device of the present invention, ambient air can be introduced into the communication tube 62 via the vacuum activation pressure release valve 602 to facilitate the passage of saliva remaining in the communication tube 62 via the air. Carrying and collecting to the liquid storage tank 64, the difference in pressure between the inside of the user's mouth and the negative pressure source 65 caused by the residual saliva can be avoided, and the communication tube 62 can be prevented from being The saliva is clogged, which in turn maintains a negative pressure path between the interior of the user's mouth and the source of negative pressure 65.

6A-1 and 6A-2 are schematic cross-sectional views showing a first variation of the oral interface device 600. The one-port interface device 600a shown in the first variation can be substituted for the oral interface device 600 of the saliva treatment system 6 of the oral interface device. The mouth interface device 600a is different from the port interface device 600 in that the mouth interface device 600a is provided with an adjustment type choke in the first flow channel 612 near the vacuum activation pressure release valve 602. The movable protrusion 660 is the same as the mouth interface device 600 and will not be repeated here. The movable convex piece One side of the 660 protrudes from the outside of the extension member for moving the movable protrusion 660 by hand, as shown in the sixth A-1 and the sixth A-2, thereby adjusting the internal space of the first flow path 612. Then change the size of the flow resistance. As shown in FIG. 6-2, when the movable protrusion 660 moves toward the flexible airflow duct 610 to reduce the internal space of the first flow passage 612, the activation threshold of the vacuum activation pressure release valve 602 is increased. . In other words, the activation threshold value of the vacuum activation pressure release valve 602 in the use state of the sixth A-2 diagram is higher than the activation threshold value of the vacuum activation pressure release valve 602 in the use state of the sixth A-1 diagram. The vacuum activated pressure release valve 602 in the use state of the sixth A-2 diagram requires a higher oral negative pressure value to be turned on.

6D-1 and 6B-2 are schematic cross-sectional views of a second variation of the oral interface device 600. The one-port interface device 600b shown in the second variation can be substituted for the oral interface device 600 of the saliva treatment system 6 of the oral interface device. The interface device 600b is different from the port interface device 600 in that the interface device 600b is provided with an adjustment type choke in the first flow channel 612 near the vacuum activation pressure release valve 602. The hollow tubular member 680 is rotated, and the remaining members are the same as the oral interface device 600 and will not be repeated here. The rotatable hollow tubular member 680 has an open hollow conduit communicating with the first flow passage 612, and one end of the rotatable hollow tubular member 680 protrudes outside the extension member for manually rotating the rotatable hollow tubular member 680, such as the sixth B The figure 1 and the sixth B-2 are shown to change the flow resistance of the first flow path 612. As shown in the sixth B-2 diagram, as the rotatable hollow tubular member 680 is rotated at a specific angle, the flow resistance of the first flow passage 612 can be changed, and the activation threshold of the vacuum activated pressure release valve 602 can be changed. In other words, the starting threshold value of the vacuum starting pressure release valve 602 in the use state of the sixth B-2 is higher than the starting threshold of the vacuum starting pressure releasing valve 602 in the use state of the sixth B-1. The vacuum activated pressure release valve 602 in the use state of the sixth B-2 diagram requires a higher oral negative pressure value to be turned on.

In addition, in a variation of the third embodiment (not shown), the negative pressure source 65 of the saliva processing system 6 of the oral interface device of the present invention may also be connected to the The communication tube 62 is interposed between the liquid storage tank 64 and the liquid storage tank 64, and the negative pressure source 65 can be started/stopped via the control unit 68 or by an artificial means.

In another aspect, the saliva treatment system 6 of the oral interface device of the present invention can continuously measure the saliva capacity in the reservoir 64 intermittently to monitor whether the saliva capacity in the reservoir 64 is fully loaded to facilitate maintaining the entire system in a normal state. Under operating conditions. In the third embodiment of the present invention, the saliva processing system 6 of the oral interface device activates/stops the time calculation operation of the timer 67 through the control unit 68, and the timer 67 can be intermittently started after being activated. After the counting time reaches a set time period t, a notification signal is sent to the control unit 68, and a pressure value measured by the pressure sensor 66 is read via the control unit 68. The pressure sensor 66 is in communication with the reservoir 64 for measuring the pressure value inside the reservoir 64. In short, after the timer 67 is activated, a notification signal is sent to the control unit 68 every time t to notify the control unit 68 to read a pressure value measured by the pressure sensor 66. In this way, the control unit 68 can continuously read the pressure value sensed by the pressure sensor 66 intermittently. The control unit 68 then determines the volume of liquid in the reservoir 64 based on the read pressure value. In addition, the length of the set time period t can be adjusted as needed, for example, the control unit 68 can periodically read the pressure value measured by the pressure sensor 66.

The method for measuring the liquid capacity in the liquid storage tank 64 in the saliva processing system 6 of the oral interface device of the present invention is the same as the method of the system 1 of the first specific example shown in the first figure, and will not be repeated here.

The systems and methods of the present invention may further be used in conjunction with other devices for treating sleep disordered breathing. For example, the system of the present invention can be used in conjunction with a nasal check valve device, such as the device disclosed in U.S. Patent No. 8,061,357. The nasal check valve device can be used to increase the positive pressure in the upper airway, and the present invention can generate an oral pressure and prevent the mouth from opening and leaking, and the pressure gradient between the oral cavity and the upper airway can be increased and maintained. This causes the soft palate to move toward the front of the mouth and the tongue to move up and the front of the mouth to ensure the smoothness of the upper airway.

The system and method of the present invention can be further used in conjunction with a positive pressure breathing apparatus (CPAP). The positive pressure breathing apparatus can be used to increase and maintain the positive pressure in the upper airway, and the pressure in the oral cavity can be increased and maintained by the present invention to generate negative pressure in the oral cavity and to prevent leakage of the mouth. Therefore, the soft palate is softly moved to the front of the mouth and the tongue is moved upwards and the front of the mouth to ensure the smoothness of the upper airway. At the same time, the system of the invention can further reduce the set value required for the positive pressure breathing apparatus; and at the same time, the system of the invention can be used to further reduce the positive pressure value of the positive pressure breathing apparatus intermittently, thereby reducing the user's continuous Respiratory discomfort caused by positive pressure to improve patient compliance.

The system and method of the present invention can be further utilized in conjunction with a respiratory detection device. The respiratory detecting device detects the respiratory flow of the upper airway, and when the state of the breathing is stopped or the breathing is weakened, the negative pressure value of the oral interface device of the present invention is turned on or increased to reduce the opening time of the negative pressure generating device. To achieve the purpose of energy saving and quiet.

The above description is only for the specific embodiments of the present invention, and is not intended to limit the scope of the claims of the present invention; all other equivalent changes or modifications which are not departing from the spirit of the present invention should be included in the following Within the scope of the patent application.

1‧‧‧Salary treatment system for oral interface devices

11‧‧‧Three-way connector

12‧‧‧Connected pipe

13‧‧‧ check valve

14‧‧‧Liquid tank

15‧‧‧Negative pressure source

17‧‧‧Timer

18‧‧‧Control unit

19‧‧‧ Warning device

100‧‧‧Mouth interface device

110‧‧‧Flexible airflow duct

120‧‧‧First open end

130‧‧‧Second open end

150‧‧‧Flexible barrier

Claims (34)

A saliva treatment system for an oral interface device, comprising: an oral interface device for placing in a user's mouth to provide a fluid passage in the oral cavity of the user; a fluid aligner having a a first interface end and a second interface end, the fluid aligner is configured to restrict all fluids from flowing to the second interface end thereof, the first interface end is connected to the fluid passage of the oral interface device; and a communication The tube has a first open end and a second open end, wherein the first open end is connected to the second interface end of the fluid aligner, and the second open end is connected to a reservoir and a negative The pressure source is configured to form a negative pressure path between the interior of the user's mouth and the source of negative pressure; wherein saliva in the oral cavity of the user is collected in the reservoir through the negative pressure path. The saliva treatment system of the oral interface device of claim 1, wherein the fluid aligner comprises a three-way connector, a first one-way valve and a second one-way valve, the three-way connection The first interface end, the second interface end and a third interface end, and the first one-way valve is disposed at the first interface end to restrict fluid flow to the second interface end, the second a check valve is disposed at the third interface end to restrict ambient air from passing through the communication pipe through the second one-way valve and the second interface end, so as to facilitate saliva flowing in the communication pipe to the liquid storage groove. The saliva treatment system of the oral interface device of claim 1, wherein the fluid aligner comprises a three-way connector, a first one-way valve, a second one-way valve, and a vacuum starting pressure a three-way connector having the first interface end, the second interface end, and a third interface end, and the first one-way valve is disposed at the first interface end to restrict fluid flow to the first a second one-way valve, the second one-way valve is disposed at the third interface end, and the vacuum-activated pressure release valve is coupled to the second one-way valve to open the pressure release valve to open around a predetermined negative pressure value Air and restricting ambient air is introduced into the communication pipe via the second one-way valve and the second interface end to facilitate the The saliva remaining in the communicating tube flows to the reservoir. The saliva treatment system of the oral interface device of claim 3, wherein the vacuum activated pressure release valve comprises a body, a propulsion valve, a spring and a spring seat, wherein the body is internally provided with a a partition of the passage to divide the body into a first chamber and a second chamber, the first chamber is connected to the ambient air, and the second chamber is connected to the second check valve, the push valve can Movably disposed in the first chamber and passing through the passage, the propulsion valve occupies the entire space of the passage when the pressure relief valve is not activated, so that the fluid of the first chamber is isolated from the second chamber. The spring seat is disposed on a surface of the partition in the first chamber, and the spring abuts between the propulsion valve and the spring seat. The saliva treatment system of the oral interface device of claim 1, wherein the system further comprises the liquid storage tank and the negative pressure source, wherein the liquid storage tank is connected to the second open end of the communication tube. The negative pressure source is in communication with the reservoir. The saliva treatment system of the oral interface device of claim 1, wherein the system further comprises the liquid storage tank and the negative pressure source, wherein the negative pressure source is connected to the second open end of the communication tube. The reservoir is connected to the source of negative pressure. The saliva processing system of the oral interface device according to claim 5, further comprising: a control unit; a timer, the time calculation action of starting/stopping the timer via the control unit; and a sense of pressure The detector is configured to measure the pressure in the liquid storage tank and transmit the measured pressure value to the control unit; wherein the timer is started to start calculating time for a set period, and the timer transmits a notification signal To the control unit, the control unit is notified to read the pressure value transmitted by the pressure sensor. The saliva processing system of the oral interface device according to claim 6, further comprising: a control unit; a timer for starting/stopping the timer calculation operation via the control unit; and a pressure sensor for measuring the pressure in the liquid storage tank and transmitting the measured pressure value To the control unit; wherein the timer is started to start counting for a set period of time, the timer transmits a notification signal to the control unit, informing the control unit to read the pressure value transmitted by the pressure sensor. The saliva processing system of the oral interface device according to claim 7, wherein the control unit has a pressure-storage liquid capacity correspondence table for the set period corresponding to the timer count, to be based on the pressure The value and the pressure-storage liquid capacity correspondence table determine the liquid capacity in the liquid storage tank. The saliva processing system of the oral interface device according to claim 8, wherein the control unit has a pressure-storage liquid capacity correspondence table corresponding to the set period corresponding to the timer count, according to the pressure The value and the pressure-storage liquid capacity correspondence table determine the liquid capacity in the liquid storage tank. A saliva treatment system for an oral interface device, comprising: an oral interface device for placement in a user's mouth to provide at least one fluid passageway in the oral cavity of the user, the oral interface device having a The extension portion protrudes from the outside of the user's mouth, and the extension portion has a first flow path and a second flow path, which are both connected to the inside of the user's mouth. The first flow path is disposed at one end of the oral cavity and is provided with a vacuum activated pressure release valve. And a connecting tube having a first open end and a second open end, the first open end being connected to the second flow path of the oral interface device, and the second open end being connected to a liquid storage tank And a negative pressure source, thereby forming a negative pressure path between the inside of the user's mouth and the negative pressure source; wherein, under a predetermined negative pressure value, the pressure release valve is activated to allow ambient air to pass through the first flow The passage passes into the mouth of the user and is carried by the air flow that is passed in. Saliva in the oral cavity and saliva remaining in the communicating tube flow to the reservoir. The saliva processing system of the oral interface device of claim 11, wherein the extension of the oral interface device further has a third flow path communicating with the oral cavity of the user, the third flow channel being located One end of the outside of the mouth is provided with a one-way valve for restricting the flow of air in the mouth to the outside of the mouth. The saliva treatment system of the oral interface device of claim 11, wherein the vacuum activated pressure release valve comprises a body, a propulsion valve, a spring and a spring seat, wherein the body is internally provided with a a partition of the passage to divide the body into a first chamber and a second chamber, the first chamber is connected to the surrounding air, the second chamber is connected to the first flow passage, and the propulsion valve is movable Provided in the first chamber and passing through the passage, the propulsion valve occupies the entire space of the passage when the pressure release valve is not activated, so that the fluid of the first chamber is isolated from the second chamber, the spring The seat is disposed on a surface of the partition in the first chamber, and the spring abuts between the propulsion valve and the spring seat. The saliva treatment system of the oral interface device according to claim 11, further comprising an adjustment type flow blocker disposed in the first flow path, wherein the adjustment type flow blocker is configured to adjust the flow resistance of the first flow path. The saliva treatment system of the oral interface device of claim 14, wherein the adjustable flow blocker is a movable convex member, and the movable convex member protrudes from one side of the extension member to The convex member is moved by hand to adjust the flow resistance of the first flow channel. The saliva treatment system of the oral interface device of claim 14, wherein the adjustable flow blocker is a rotatable hollow pipe member having an open hollow pipe system connected to the first flow. And the one end of the rotatable hollow tubular member protrudes outside the extension member for manually rotating the hollow tubular member to adjust the flow resistance of the first flow passage. The saliva treatment system of the oral interface device of claim 11, wherein the system further comprises the liquid storage tank and the negative pressure source, wherein the liquid storage tank is connected to the liquid storage tank The second open end of the communication tube is connected to the liquid storage tank. The saliva treatment system of the oral interface device of claim 11, wherein the system further comprises the liquid storage tank and the negative pressure source, the negative pressure source being connected to the second open end of the communication tube, The reservoir is connected to the source of negative pressure. The saliva processing system of the oral interface device according to claim 17, further comprising: a control unit; a timer, the time calculation action of starting/stopping the timer via the control unit; and a sense of pressure The detector is configured to measure the pressure in the liquid storage tank and transmit the measured pressure value to the control unit; wherein the timer is started to start calculating time for a set period, and the timer transmits a notification signal To the control unit, the control unit is notified to read the pressure value transmitted by the pressure sensor. The saliva processing system of the oral interface device according to claim 18, further comprising: a control unit; a timer, the time calculation action of starting/stopping the timer via the control unit; and a sense of pressure The detector is configured to measure the pressure in the liquid storage tank and transmit the measured pressure value to the control unit; wherein the timer is started to start calculating time for a set period, and the timer transmits a notification signal To the control unit, the control unit is notified to read the pressure value transmitted by the pressure sensor. The saliva processing system of the oral interface device according to claim 19, wherein the control unit has a pressure-storage liquid capacity correspondence table corresponding to the set period corresponding to the timer count, according to the pressure The value and the pressure-storage liquid capacity correspondence table determine the liquid capacity in the liquid storage tank. The saliva processing system of the oral interface device according to claim 20, wherein the control unit has a pressure-storage liquid capacity correspondence table corresponding to the set period of the timer count, to be based on the pressure The value and the pressure-storage liquid capacity correspondence table determine the liquid capacity in the liquid storage tank. An oral interface device comprising: a flexible barrier for being disposed between a user's lips and a tooth, the flexible barrier having at least one check valve to limit air in the user's mouth Flowing through the one-way valve to the outside of the oral cavity; an extension member formed on one side of the flexible barrier and protruding outside the user's mouth; and a flexible airflow conduit passing through the flexible barrier and the An extension member having a first open end extending beyond the mouth of the user and communicating with a negative pressure source and a second open end portion for positioning on the user's tongue Between the captains. The oral interface device of claim 23, wherein the flexible air flow conduit has at least one through hole adjacent to the flexible barrier, and the through hole communicates with the side of the flexible air flow conduit and To communicate with the front end region of the oral cavity of the user. An oral interface device comprising: a flexible barrier for being disposed between a user's lips and a tooth; an extension member formed on one side of the flexible barrier and protruding from the user's mouth And a flexible airflow conduit through the flexible barrier and the extension, the flexible airflow conduit having a first open end extending beyond the mouth of the user for communicating with a negative pressure The source and the opposite second opening end are disposed between the user's tongue and the upper jaw; wherein the extension has a first flow path and a second flow path respectively formed on the flexible air flow conduit The first side is connected to the opposite side of the user's mouth At least one of the channel and the second flow channel is provided with a one-way valve away from one end of the user's mouth to restrict the flow of air in the oral cavity of the user to the outside of the oral cavity via the one-way valve. The oral interface device of claim 25, wherein the first flow path is provided with a one-way valve away from one end of the user's oral cavity, and the second flow path is provided with a vacuum start away from one end of the user's oral cavity. Pressure relief valve. The oral interface pressure device of claim 26, wherein the vacuum activated pressure release valve comprises a body, a propulsion valve, a spring and a spring seat, wherein the body is internally provided with a partition having a passage Separating the body into a first chamber and a second chamber, the first chamber is connected to the ambient air, the second chamber is connected to the second flow passage, and the propulsion valve is movably disposed on the And passing through the passage in the first chamber, the propulsion valve occupies the entire space of the passage when the pressure relief valve is not activated, so that the fluid of the first chamber flows to the second chamber, the spring seat is disposed at On a surface of the partition in the first chamber, the spring abuts between the propulsion valve and the spring seat. The oral interface device of claim 27, further comprising an adjustment type flow blocker disposed in the second flow path for adjusting the flow resistance of the second flow path. The oral interface device of claim 28, wherein the adjustable flow blocker is a movable convex member, and the movable convex member protrudes outside the extension member for hand movement. a convex member for adjusting the flow resistance of the second flow path. The oral interface device of claim 28, wherein the adjustable flow blocker is a rotatable hollow pipe member, one end of the rotatable hollow pipe member protrudes outside the extension member for manually rotating the hollow pipe member, Thereby adjusting the flow resistance of the second flow channel. A method for measuring a liquid capacity in a liquid storage tank of a saliva processing system of an oral interface device, comprising: placing the oral interface device in a user's mouth, and communicating through the system a negative pressure source to form a negative pressure path between the user's mouth and the negative pressure source, wherein saliva in the oral cavity of the user is collected into the liquid storage tank through the negative pressure path; continuously measuring intermittently a pressure value in the liquid storage tank; and determining the liquid capacity in the liquid storage tank according to the measured pressure value. The method for measuring a liquid capacity in a liquid storage tank of a saliva processing system of the oral interface device according to claim 31, wherein the step of continuously measuring the pressure value in the liquid storage tank intermittently comprises periodically Measure the pressure value in the reservoir. The method for measuring a liquid capacity in a liquid storage tank of a saliva treatment system of the oral interface device according to claim 31, wherein the system is as described in claims 7, 8, 19 and 20 A system. The method for measuring a liquid capacity in a liquid storage tank of a saliva processing system of the oral interface device according to claim 31, wherein the step of determining the pressure value according to the pressure to determine the liquid capacity in the liquid storage tank is The liquid capacity in the liquid storage tank is determined based on the pressure value and a corresponding pressure-storage liquid capacity correspondence table.