TWI569827B - Apparatus for generating negative pressure and its use - Google Patents

Description

Negative pressure generating device and its application

The present invention relates to a negative pressure generating device, and more particularly to a negative pressure generating device for providing a vacuum source to an oral interface device suitable for a patient with sleep disordered breathing.

Obstructive Sleep Apnea (OSA), hypopnea (Hypernea), and Upper Airway Resistance Syndrome (UARS) are caused by complete or partial obstruction of the upper respiratory tract during sleep, during anesthesia, or after anesthesia. A variety of symptoms, they can cause a disruption of breathing during sleep and a serious crisis of hypoxia in the blood. Patients with OSA, hypopnea and/or UARS are often repeatedly awakened due to insufficient oxygen during sleep, resulting in fragmental sleep and poor sleep quality.

There are currently several treatments for patients with sleep-disordered breathing. The most common treatment is the 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. It has low adaptability due to the serious side effects it causes.

An improved method today is to apply a negative pressure in the patient's mouth, using a negative pressure Into the front end of the user's mouth, usually at the lip or lip later, pull the tongue forward by negative pressure to pull the back end of the tongue away from the back of the respiratory tract. Various oral devices using oral negative pressure have been developed. For example, the applicant's Taiwan patent application filed on January 3, 2014, the oral interface device of the application No. 103101121, through proper control of the oral cavity Negative pressure to help OSA, hypopnea and/or UARS patients breathe. Further, an oral device employing oral negative pressure can provide a vacuum source using a suitable negative pressure control system, such as an electronic pump or the like disclosed in the patent application of US Patent Publication No. 2009/0288660. The device provides a source of vacuum.

It is an object of the present invention to provide a vacuum generating device that can be used as a vacuum source for an oral interface device for treating patients with sleep disordered breathing.

Another object of the present invention is to provide a portable negative pressure generating device for improving user convenience.

It is still another object of the present invention to provide a negative pressure generating device which can reduce noise interference, so that the user can have a quiet and comfortable sleeping environment.

Another object of the present invention is to reduce the operation of the pump by using a combination of a sound-insulating module surrounding the pump and a sound-absorbing pipe structure in the vacuum pump design of the negative pressure generating device of the present invention. Noise and vibration generated.

A further object of the present invention is to use a single tube as a circuit loop or a multi-tube parallel form or multiple bent pipelines as a vacuum pump intake and/or exhaust pipe to not increase In the case of the volume of the negative pressure generating device of the present invention, the length of the inlet/exhaust pipe can be lengthened, thereby reducing the noise of the intake end and/or the exhaust end during the operation of the vacuum pump.

According to the above, in one aspect, the present invention provides a vacuum generating device including: a vacuum pump having an intake end and an exhaust end; and a soundproof module having a receiving space for the vacuum Pu, the sound insulation module is used to isolate the vacuum pump from running Noise and vibration; and a muffler pipe module comprising a flexible intake pipe having an open end connected to the intake end of the vacuum pump and a flexible exhaust pipe having an opening The end is connected to the exhaust end of the vacuum pump, and the muffler pipeline module is configured to reduce the noise of the inlet end and/or the exhaust end of the vacuum pump during operation, and the muffler pipeline module is disposed at The surface of the soundproof module is embedded in the body of the soundproof module.

In some embodiments of the present invention, the sound insulation module and/or the sound insulation pipeline module may be selected from silicone, plastic, ethylene vinyl acetate copolymerized plastic (EVA) or polyurethane (PU). Material.

In some embodiments of the present invention, the flexible intake pipe and/or the exhaust pipe of the muffling pipe module may be in the form of a single pipe or a multiple pipe parallel connection or multiple bending pipes. Forming such that the length of the flexible intake pipe and/or the exhaust pipe of the muffling pipe module is extended without increasing the volume of the negative pressure generating device, thereby reducing the vacuum pump of the negative pressure generating device Noise at the intake and/or exhaust ends during operation. For example, in an embodiment of the present invention, the flexible exhaust pipe is a single pipe and surrounds the soundproof module to form a plurality of pipeline circuits outside the soundproof module. In an embodiment of the invention, the flexible exhaust pipe comprises a plurality of independent parallel pipes surrounding the exterior of the soundproof module. In an embodiment of the invention, the sound insulation module includes a first cover body, an intermediate cover body and a second cover body, and the flexible exhaust pipe includes at least one first multiple bend pipe Located inside the first cover. In an embodiment of the invention, the flexible exhaust pipe includes a plurality of parallel connected first plurality of bent pipes located inside the first cover. In an embodiment of the invention, the flexible exhaust pipe is disposed in a fence-like pipeline circuit on a surface of the first cover relative to the vacuum pump, and the porous material is filled in the flexible exhaust pipe. Inside. In an embodiment of the invention, the flexible intake pipe includes at least one second multiple bending pipe located inside the second cover. In an embodiment of the invention, the flexible intake pipe includes a plurality of parallel connected second multiple bending pipes located inside the second cover. In an embodiment of the invention, the flexible intake pipe is disposed in a fence-like pipeline circuit on a surface of the second cover relative to the vacuum pump, and And a porous material is filled in the flexible intake pipe.

In an embodiment of the invention, the negative pressure generating device is a portable device including a built-in power supply.

In another aspect, the present invention provides a device for producing an oral negative pressure comprising: the negative pressure generating device of the present invention and a one-port interface device. The oral interface device includes an oral interface and a gas flow conduit through the oral interface and having an inlet end and an outlet end, the oral interface being placed in the oral cavity of the user to the inlet of the gas flow conduit The end is fixed in the mouth of the user, and the outlet end of the airflow conduit is connected to another open end of the flexible intake pipe, the airflow conduit, the flexible intake pipe, the vacuum pump, and the The flexible exhaust pipe constitutes a negative pressure path to create a negative pressure environment within the user's mouth.

In addition, the selected materials of the sound insulating module and the sound absorbing pipe module of the negative pressure generating device of the present invention and various configurations thereof can be used in the device for generating oral negative pressure of the present invention.

10, 90‧‧‧ Vacuum pump module

20, 91‧‧‧ control module

30‧‧‧deformable parts

35‧‧‧External power connection埠

40, 93‧‧‧Three-way connector module

42, 94‧‧‧ Adapters

50, 92‧‧‧ check valve module

52‧‧‧Air passage

60‧‧‧Active bleed valve

70‧‧‧Oral interface device

100,900‧‧‧vacuum pump

101, 101a~101d, 901‧‧‧ flexible intake pipe

102, 102a~102d, 902‧‧‧Flexible exhaust pipe

103, 903‧‧ ‧ soundproof module

95,200‧‧‧Bottom shell module

96, 300‧‧‧ top shell module

98‧‧‧Power switch

99‧‧‧Communication connection埠

202, 952‧‧‧ battery holder

203‧‧‧ recessed hole

301‧‧‧ card slot

302‧‧‧ Cover

400‧‧‧ protective cover

402‧‧‧Kakong

500‧‧‧ front cover module

502‧‧‧ front cover

504‧‧‧Pushing lugs

506‧‧‧Slope push block

508‧‧‧Locating screw

600‧‧‧Battery protection cover

602‧‧‧ venting holes

700‧‧‧Airflow conduit

702‧‧‧Open end

704‧‧‧Open end

710‧‧‧ mouth interface

932‧‧‧Connecting port

950‧‧‧ accommodating space

953‧‧‧ battery holder cover

954‧‧‧Exhaust filter assembly

954a‧‧‧ Filter cotton block

954b‧‧‧ vent cover

955‧‧‧ Groove

1001, 9001‧‧ ‧ intake end

1002, 9002‧‧‧ exhaust end

1012b, 1022b, 1024b‧‧‧ open end

1030, 1030a, 1030b, 1030c, 1030d, 9030‧‧‧ first cover

1032, 1032a, 9032‧‧‧ intermediate casing

1033, 9033‧‧‧ hollow room

1034, 1034a, 1034b, 1034c, 1034d, 9034‧‧‧ second cover

1034e‧‧‧Extension

1035‧‧‧Porous material

3020‧‧‧ button

5020‧‧‧ accommodating holes

5022‧‧‧ first card

5024‧‧‧Second card

9010, 9012‧‧‧ flexible intake pipe open end

9020, 9022‧‧‧ flexible exhaust pipe open end

The first A is a top plan view showing a first embodiment of the negative pressure generating device of the present invention.

The first B diagram shows a bottom view of the first embodiment of the negative pressure generating device of the present invention.

The first C diagram shows a front view of a first embodiment of the negative pressure generating device of the present invention with respect to a bottom view.

The first D diagram shows a rear view of a first embodiment of the negative pressure generating device of the present invention with respect to a bottom view.

The first E diagram shows a left side view of the first embodiment of the negative pressure generating device of the present invention with respect to a bottom view.

The first F diagram shows a first embodiment of the negative pressure generating device of the present invention A schematic view of the right side of the schematic view of the bottom view.

The second drawing shows a perspective exploded view of a first embodiment of the negative pressure generating device of the present invention.

The third figure shows a schematic diagram of the arrangement relationship of the components of the bottom shell module of the negative pressure generating device of the first embodiment of the present invention, wherein a one-port interface device is connected to the negative pressure generating device.

The fourth A is a schematic perspective view of the vacuum pump module of the negative pressure generating device of the first embodiment of the present invention.

FIG. 4B is a perspective exploded view of the vacuum pump module of the negative pressure generating device of the first embodiment of the present invention.

The fourth C is a side view of the vacuum pump module of the negative pressure generating device of the first embodiment of the present invention.

The fourth D diagram is another side view of the vacuum pump module of the negative pressure generating device of the first embodiment of the present invention.

Fig. 5 is a schematic view showing a first variation of the vacuum pump module of the negative pressure generating device of the first embodiment of the present invention.

Fig. 6 is a view showing a second variation of the vacuum pump module of the negative pressure generating device of the first embodiment of the present invention.

Figure 7 is a schematic view showing a third variation of the vacuum pump module of the negative pressure generating device of the first embodiment of the present invention.

Figure 8 is a view showing a fourth variation of the vacuum pump module of the negative pressure generating device of the first embodiment of the present invention.

Figure 9A is a top plan view showing a second embodiment of the negative pressure generating device of the present invention.

Figure IX is a bottom plan view showing a second embodiment of the negative pressure generating device of the present invention.

A ninth C diagram showing a second embodiment of the negative pressure generating device of the present invention A front view of the schematic view relative to the bottom view.

The ninth D diagram shows a rear view of a second embodiment of the negative pressure generating device of the present invention with respect to a bottom view.

Figure IX is a left side view showing a second embodiment of the negative pressure generating device of the present invention with respect to a bottom view.

The ninth F diagram shows a right side view of a second embodiment of the negative pressure generating device of the present invention with respect to a bottom view.

Figure 11 is a perspective exploded view showing a second embodiment of the negative pressure generating device of the present invention.

11 is a schematic view showing the arrangement relationship of the components of the bottom case module of the negative pressure generating device of the second embodiment of the present invention, wherein a one-port interface device is connected to the negative pressure generating device.

Fig. 12A is a perspective view showing the appearance of a vacuum pump module of the negative pressure generating device of the second embodiment of the present invention.

The twelfth B-picture is a three-dimensional appearance of the twelfth A after the counterclockwise rotation of ninety degrees.

Twelfth C is a side view of a long side of the vacuum pump module of the negative pressure generating device of the second embodiment of the present invention.

Fig. 12D is a schematic side view showing a short side of the vacuum pump module of the negative pressure generating device of the second embodiment of the present invention.

Fig. 12E is a side view showing another long side of the vacuum pump module of the negative pressure generating device of the second embodiment of the present invention.

The twelfth F is a perspective exploded view of the vacuum pump module of the negative pressure generating device of the second embodiment of the present invention.

The objects, spirit and advantages of the present invention are described in detail by the following detailed description The drawings will be clarified. It should be noted that in order to clearly show the structure and configuration relationship of the important components of the present invention, the various components in the drawings of the present invention are not drawn according to the actual size ratio, and some drawings omit some components of some components, but in other The complete main structure of these components is disclosed in the drawings.

A first specific embodiment of the negative pressure generating device of the present invention is shown in the first, second and third figures. The first A to the first F are schematic views of different appearances of the negative pressure generating device according to the first embodiment of the present invention, wherein the first A is a top view, and the first B is a bottom view, the first C is The first D diagram is a rear view with respect to the bottom view, and the first E diagram is a left side view relative to the bottom view and the first F diagram is a right side view relative to the bottom view. . The second figure is a perspective exploded view of the negative pressure generating device of the first embodiment of the present invention. The third figure is a schematic diagram showing the arrangement relationship of the components of the bottom shell module of the negative pressure generating device according to the first embodiment of the present invention, wherein a one-port interface device is connected to the negative pressure generating device. The vacuum generating device is a vacuum source for various oral interface devices suitable for treating sleep apnea symptoms. As shown in the second figure, the vacuum generating device mainly comprises a vacuum pump module 10, a control module 20, a bottom shell module 200, a top shell module 300, a front cover module 500 and a Power supply. In the first embodiment, the power supply source can be connected to an external power source through an external power connection port 35 or a battery pack built in the battery holder 202 formed by the lower half of the bottom module 200. Show) supply. Referring to FIG. 1A, a battery protection cover 600 is placed in the lower half of the back surface of the bottom module 200 to cover the battery holder 202. The battery protection cover 600 is provided with a plurality of vent holes 602 near one side of the external power connection port 35.

Referring to FIGS. 4A-4D and FIG. 2, the vacuum pump module 10 includes a vacuum pump 100, a flexible intake pipe 101, a flexible exhaust pipe 102, and a soundproofing. Module 103. An intake end 1001 of the vacuum pump 100 is connected to an open end of the flexible intake pipe 101, and an exhaust end 1002 of the vacuum pump 100 An open end of the flexible exhaust pipe 102 is provided. The sound insulating module 103 covers the vacuum pump 100, and the flexible air intake pipe 101 extends from the air inlet end 1001 to the outside of the soundproof module 103. The flexible exhaust pipe 102 is from the exhaust end. 1002 extends and is wound around the soundproof module 103 to form a plurality of pipeline circuits, and the flexible exhaust pipe 102 is connected to the external power source through the bottom module 200 with respect to an open end of the exhaust end 1002. A recess 203 (refer to FIG. 3) of the side of the crucible 35 communicates with the exhaust hole 602 of the battery protection cover 600, and discharges the gas extracted by the vacuum pump 100 to the surrounding environment through the exhaust hole 602. . The sound insulation module 103 can isolate the noise and vibration generated when the vacuum pump 100 is operated from the outside. In an embodiment of the present invention, the soundproof module 103 can be formed of a porous sound absorbing material, such as a PU (Polyurethane foam) foam, a PE (Polyethylene) foam, or the like. In some embodiments of the present invention, the sound insulation module 103 can be made of silicone, plastic (such as PMMA, PC, PP), ethylene vinyl acetate copolymerized plastic (EVA) or polyurethane (PU). ) material. In an embodiment of the invention, the soundproof module 103 can be composed of a first cover 1030, an intermediate casing 1032 and a second cover 1034. The intermediate casing 1032 has a hollow chamber 1033 for receiving Set the vacuum pump 100 (see Figure 4B). As shown in FIG. 4A, FIG. 4C, and FIG. 4D, the flexible exhaust pipe 102 is wound around the soundproof module 103 to form a plurality of pipeline circuits, and the pipeline loop pattern can be The length of the flexible exhaust pipe 102 is extended without increasing the volume of the vacuum pump module 10, and the noise of the exhaust end 1002 during operation of the vacuum pump 100 can be reduced. In some embodiments of the present invention, the flexible intake pipe 101 and the flexible exhaust pipe 102 may be made of silicone, plastic (for example, PMMA, PC, PP), ethylene vinyl acetate copolymerized plastic ( EVA) or polyurethane (PU) material.

In order to extend the length of the flexible intake pipe 101 and/or the flexible exhaust pipe 102 without increasing the volume of the vacuum pump module 10, the intake of the vacuum pump 100 may be reduced. The effect of the noise of the end 1001 and / or the exhaust end 1002, this hair It is obvious that the flexible intake pipe 101 and the flexible exhaust pipe 102 can still adopt other configurations. For example, in the first variation of the vacuum pump module of the present invention, in the first variation, the vacuum pump module includes a vacuum pump 100 having an intake end 1001 and an exhaust end 1002. A soundproof module (1030a, 1032a, 1034a), a flexible air intake tube 101a with multiple bends, and a flexible exhaust tube 102a with multiple bends. The sound insulation module includes a first cover 1030a, an intermediate casing 1032a and a second cover 1034a. The vacuum pump 100 is placed in a hollow chamber of the intermediate casing 1032a. The flexible intake pipe 101a is located inside the second cover 1034a and an open end extends from the second cover 1034a to communicate with the intake end 1001 of the vacuum pump 100, and the other open end is from the first The second cover 1034a extends. The flexible exhaust pipe 102a is located inside the first cover 1030a and an open end extends from the first cover 1030a to communicate with the exhaust end 1002 of the vacuum pump 100, and the other open end is from the first end A cover 1030a extends out. In an embodiment of the present invention, the flexible intake pipe 101a and the second cover 1034a may be integrally formed by injection molding. The flexible exhaust pipe 102a and the first cover 1030a can be integrally formed by injection molding. The sixth figure is a second variation of the vacuum pump module of the present invention, which is different from the vacuum pump module 10 of the first embodiment in that the flexible exhaust pipe 102b includes a plurality of parallel flexible The pipelines are collectively collected at the open ends 1022b, 1024b. The open end 1022b is in communication with the exhaust end 1002 of the vacuum pump 100. The open end 1024b is in communication with the outside world. The vacuum pump 100 is placed in the hollow chamber 1033 of the intermediate casing 1032, and the flexible exhaust pipe 102b in a plurality of parallel flexible conduits is wound around the outside of the intermediate casing 1032. The intake end 1001 of the vacuum pump 100 is in communication with a flexible intake pipe 101b. It should be noted that in order to clearly show the structure and configuration relationship of each component in the sixth figure, the size of each component in the figure is not drawn according to the actual size ratio. The seventh figure is another modification of the flexible intake pipe 101 and the flexible exhaust pipe 102 of the present invention. In this variation, the present invention employs a plurality of bent pipelines in parallel as a flexible intake pipe 101c and a flexible exhaust pipe 102c, and the flexibility The intake pipe 101c and the flexible exhaust pipe 102c are respectively located inside the second cover 1034c of the soundproof module and the first cover 1030c. In an embodiment of the present invention, the flexible intake pipe 101c and the second cover 1034c may be integrally formed by injection molding. The flexible exhaust pipe 102c and the first cover 1030c can be integrally formed by injection molding. The remaining components of the vacuum module of this variation of the present invention are the same as the corresponding components of the fifth embodiment, and will not be repeated here, and the vacuum pump module shown in FIG. It is easy to know the complete structure of the vacuum module configured by the flexible intake pipe and the flexible exhaust pipe of the seventh figure. The eighth figure is another modification of the flexible intake pipe 101 and the flexible exhaust pipe 102 of the present invention. In this variation, the present invention employs a fence-like pipeline circuit as a flexible intake pipe 101d and a flexible exhaust pipe 102d, and the flexible intake pipe 101d and the flexible exhaust pipe 102d The porous material 1035 is filled inside. The flexible intake pipe 101d is located on the surface of the second cover 1034d of the soundproof module relative to the vacuum pump 100. The flexible exhaust pipe 102d is located on the first cover 1030d of the soundproof module. On the surface of the vacuum pump 100. The remaining components of the vacuum module of this variation of the present invention are the same as the corresponding components of the fifth embodiment, and will not be repeated here, and the vacuum pump module shown in FIG. It is easy to know the complete structure of the vacuum module configured by the flexible intake pipe and the flexible exhaust pipe of the eighth figure.

Referring to the second and third figures, the vacuum generating device of the present invention further includes a three-way connector module 40 and a one-way valve module 50. A connection port of the three-way connector module 40 is connected to one open end of the one-way valve module 50, the other connection port is connected to an active air release valve 60, and the other connection port is connected to a port suitable for generating a negative pressure in the oral cavity. Interface device 70. The mouth interface device 70 has an air flow conduit 700 having an open end 702 that communicates with a corresponding connection port of the three-way connector module 40 and another open end 704 that is placed in the user's mouth. The oral interface device 70 further has an oral interface 710 placed in the user's mouth to secure the open end 702 of the flow guiding tube 700 within the oral cavity. The present invention can use the application filed by the applicant of the present case on January 3, 2014. Bay Patent Application, the oral interface device of the PCT application No. 103101121, the disclosure of which is hereby incorporated by reference in its entirety in its entirety herein in its entirety herein in The other open end of the one-way valve module 50 communicates with an open end of the flexible intake pipe 101 with respect to the vacuum pump intake end 1001. In an embodiment of the invention, the airflow conduit 700 can communicate with the three-way connection module 40 through an adapter 42. When the vacuum generating device of the present invention provides a vacuum source to the oral interface device 70, the airflow conduit 700, the flexible intake pipe 101, the vacuum pump 100, and the flexible exhaust gas can be transmitted through the airflow conduit 700. The tube 102 constitutes a negative pressure path to facilitate creating a negative pressure environment within the user's mouth. The check valve module 50 can control the flow of gas from the negative pressure path from the air flow conduit 700 to the flexible exhaust pipe 102. In one embodiment of the invention, the flexible exhaust pipe 102 is connectable to a reservoir (not shown) relative to an outlet end of the vacuum pump exhaust end 1002. In an embodiment of the invention, the negative pressure generating device may include a pressure sensor (not shown) connected to an air flow passage 52 of the one-way valve module 50 through a pipeline to facilitate detecting the negative The pressure value of the pressure path. The pressure sensor (not shown) can be disposed on the control module 20. On the other hand, when the pressure value of the negative pressure path reaches a starting threshold of the active deflation valve 60, the active venting valve 60 opens to allow ambient air to enter the negative pressure path, reducing the negative pressure in the user's mouth. In this way, the present invention can avoid the phenomenon that the negative pressure is too high and the user is uncomfortable.

In an embodiment of the present invention, the power supply source of the negative pressure generating device may be a battery pack mounted on the battery holder 202, so that the negative pressure generating device can be made into a portable device, providing users with more Great convenience. The power supply source may be an external power source, for example, an external power source connected to the external power source via the negative pressure generating device. The voltage supply source is electrically connected to the control module 20, and the power of the vacuum pump 100 is controlled by the control module 20 to facilitate achieving a desired negative pressure value in the user's mouth. In an embodiment of the invention, the control module 20 can adjust the power supply of the vacuum pump 100 according to the negative pressure value detected by the pressure sensor. As shown in the third figure, the upper half of the bottom module 200 The vacuum pump module 10, the three-way connector module 40 and the one-way valve module 50 are disposed, and the battery holder 202 and the active air release valve 60 are disposed between the lower half of the bottom module 200. . Referring to FIG. 4A and FIG. 4C, in an embodiment of the present invention, the second cover 1034 of the soundproof module 103 of the vacuum pump module 10 has a pair of extensions on opposite sides. 1034e, the extension portion 1034e can be folded upward (as indicated by the dashed line in FIG. 4C), and the vacuum pump module 10 is assembled in the corresponding receiving space of the bottom shell module 200. The bent extensions 1034e are fixed to the flexible intake pipe 101 and the exhaust pipe 102 wound around the sound insulation module 103. In an embodiment of the invention, the three-way connector module 40 can be screwed to the bottom module 200. In an embodiment of the invention, the external power connection port 35 can be disposed on an outer side of the bottom module 200, and the adapter 42 of the air flow conduit 700 communicating with the oral interface device 70 can be disposed. On the other side of the pair. The assembly of the components of the vacuum generating device of the present invention is as shown in the second figure, wherein the control module 20 is assembled on the top case module 300 and the bottom case of the component shown in the third figure. Between modules 200. In an embodiment of the invention, the control module 20 is fixed on the bottom module 200 by screwing. The lower half of the top shell module 300 has a card slot 301. A deformable member 30 is disposed in the card slot 301, and a cover plate 302 is fitted over the card slot 301 and interferes with the deformable member 30. The top surface of the cover plate 302 is provided with a plurality of buttons 3020, which are respectively executed corresponding to different functions of the control module 20. When the user presses a button 3020, the button 3020 presses a corresponding portion of the deformable member 30, and the corresponding portion of the deformable member 30 is electrically connected to the control module 20 through The control module 20 is caused to perform the desired function. In the first embodiment, the negative pressure generating device of the present invention further includes a protective cover 400 covering the top cover module 300. The lower half of the protective cover forms a card hole 402 and is connected to the cover plate 302. The combination of the buttons 3020 and the card 3020 can be exposed to facilitate the user to perform the required functions by tapping. The front cover module 500 of the negative pressure generating device of the present invention is disposed at the front side end of the bottom shell module 200 and the top shell module 300. The front cover module 500 includes A front cover 502, a push-type projection 504, a ramp push block 506 and a positioning screw 508. The front cover 502 has a receiving hole 5020, a pair of first card members 5022 and a pair of second card members 5024. The pressing protrusion 504 passes through the receiving hole 5020 and abuts against a slope of the inclined surface pushing block 506. The positioning screw 508 is screwed to the control module 20 and abuts against the inclined surface pushing block 506. To position the push-type bump 504 and the bevel push block 506. The first card member 5022 is coupled to the pair of card slots corresponding to the bottom shell module 200, and the pair of second card members 5024 are engaged with the corresponding pair of card slots of the top shell module 300. The present invention further includes further assembling the bottom shell module 200 and the top shell module 300 by means of a screwing and fixing method, for example, using the screw members and the corresponding screw holes arrangement shown in the second figure.

When the user wants to disassemble the negative pressure generating device, the screw members shown in the third figure may be loosened first, and then the pressing protrusion 504 is further pressed downward, and the pressing protrusion 504 pushes the inclined surface push block 506. The first card member 5022 and the pair of second card members 5024 are separated from the bottom case module 200 and the top case module 300.

A second embodiment of the negative pressure generating device of the present invention is shown in the ninth, tenth, and eleventh drawings. 9A to 9F are schematic views showing different appearances of the negative pressure generating device according to the second embodiment of the present invention, wherein the ninth A is a top view, the ninth B is a bottom view, and the ninth C is FIG. 9D is a rear view of the schematic view, and FIG. . Figure 11 is a perspective exploded view of a negative pressure generating device according to a second embodiment of the present invention. 11 is a schematic view showing the arrangement relationship of the components of the bottom case module of the negative pressure generating device according to the second embodiment of the present invention, wherein a one-port interface device is connected to the negative pressure generating device. The oral interface device to which the negative pressure generating device of the second embodiment of the present invention is applied is the same as the first embodiment. As shown in the tenth figure, the vacuum generating device mainly comprises a vacuum pump module 90, a control module 91, a bottom shell module 95, and a top shell mold. Group 96 and a power supply source. In a second embodiment, the power supply source is supplied by a battery pack (not shown) contained within the battery holder 952 of the sump module 95. A battery block cover 953 has a pair of latching blocks on the opposite sides of the battery cover body 953 to engage with the corresponding recessed portion of the bottom case module 95 to cover the battery holder 952 and provide a battery pack base. The user can conveniently replace the battery pack by opening the battery holder cover 953. The vacuum pump module 90 is disposed in an accommodating space 950 of the bottom module 95 relative to the battery holder 952. Furthermore, please refer to the 12th to 12th F drawings, the vacuum pump module 90 includes a vacuum pump 900, a flexible intake pipe 901, a flexible exhaust pipe 902 and a Sound insulation module 903. An intake end 9001 of the vacuum pump 100 is connected to an open end of the flexible intake pipe 901, and an exhaust end 9002 of the vacuum pump 900 communicates with an opening of the flexible exhaust pipe 902. end. The sound insulating module 903 covers the vacuum pump 900, and the flexible air inlet pipe 901 extends from the air inlet end 9001 to the outside of the soundproof module 903. The flexible exhaust pipe 902 is from the exhaust end. The 9002 extends and is wound around the soundproof module 903 to form a plurality of pipeline circuits. The sound insulation module 903 can isolate the noise and vibration generated when the vacuum pump 900 is operated from the outside. The material of the sound insulation module 903 is the same as that selected by the sound insulation module 103 of the first embodiment. In an embodiment of the present invention, the soundproof module 903 can be composed of a first cover 9030, an intermediate casing 9032, and a second cover 9034. The intermediate casing 9032 has a hollow chamber 9033 to accommodate Set the vacuum pump 900 (see Figure 12 F). As shown in FIG. 12A to FIG. 12E, the flexible exhaust pipe 902 is wound around the soundproof module 903 to form a plurality of pipeline circuits, and the loop pattern of the pipeline can be increased without increasing The volume of the vacuum pump module 90 extends the length of the flexible exhaust pipe 902, thereby reducing the noise of the exhaust end 9002 during operation of the vacuum pump 900. The flexible intake pipe 901 and the flexible exhaust pipe 902 of the second embodiment of the present invention are the same as those selected in the first embodiment.

In addition, various modifications shown in the fifth to eighth embodiments can also be used as variations of the second embodiment of the present invention, and those skilled in the art can However, it can be easily understood how these variations are applied to the negative pressure generating device of the second embodiment of the present invention.

Referring to FIG. 11 and FIG. 11 , the negative pressure generating device of the second embodiment of the present invention further includes a check valve module 92 , a three-way connector module 93 and an adapter 94 . The one-way valve module 92 and the three-way connector module 93 are disposed below the accommodating space 950 of the bottom shell module 95. One end of the one-way valve module 92 communicates with an open end of the flexible intake pipe 901 with respect to the intake end 9001. The other end of the one-way valve module 92 is connected to a connection port of the three-way connector module 93. The adapter 94 is connected to the other connection port 932 of the three-way connector module 93 and passes through the top shell module 96 and one side of the bottom shell module 95 (as shown in FIG. 9D). An open end of the airflow conduit 700 of the oral interface device 70 is in communication with the adapter 94, and the airflow conduit 700 is communicated to the flexible air intake tube 901 through the adapter 94. When the vacuum generating device of the present invention provides a vacuum source to the oral interface device 70, the airflow conduit 700, the flexible air intake tube 901, the vacuum pump 900, and the flexible exhaust gas can be transmitted through the airflow conduit 700. Tube 902 forms a negative pressure path to facilitate creating a negative pressure environment within the user's mouth. The check valve module 92 can control the flow of gas from the negative pressure path from the air flow conduit 700 to the flexible exhaust pipe 902. A recess 955 is disposed in a corner of the accommodating space 950 of the bottom shell module 95. An exhaust filter assembly 954 is disposed in the recess 955. The exhaust filter assembly 954 includes a filter block 954a and A vent cap 954b is engaged with the recess 955 to secure the filter block 954a within the recess 955. Referring to FIG. 11 , the flexible exhaust pipe 902 communicates with the filter block 954a inside the groove 955 with respect to an open end 9022 of the exhaust end 9002 and passes through the filter block 954a. The gas extracted by the vacuum pump 900 is discharged to the surrounding environment with the vent cap 954b. In another embodiment of the present invention, another connection port of the three-way connector module 93 can be connected to a pressure sensor (not shown) disposed on the control module 91 to facilitate detecting the negative pressure. The negative pressure of the pathway. In an embodiment of the invention, the voltage supply source is electrically connected to the control module 91, and The power of the vacuum pump 900 is controlled by the control module 91 to facilitate achieving a desired negative pressure value in the user's mouth. In other words, the control module 91 can adjust the power supply of the vacuum pump 900 according to the negative pressure value detected by the pressure sensor. Furthermore, as shown in the tenth and ninth diagrams, in one embodiment of the invention, the negative pressure generating device further has a power switch 98 and a communication port 99. The power switch 98 is electrically connected to the control module 91. The user can press or turn the power switch 98 to turn on or off the power supply of the control module 91. The communication port 99 is electrically connected to the control module 91, and the user can select the mode in which the vacuum pump 900 operates through the communication port 99.

On the other hand, the negative pressure generating device of the second embodiment of the present invention may further include an alerting device 97 electrically connected to the control module 91 and passing through the outer surface of the top shell module 96 to facilitate viewing of the alerting device 97. Display status. Through the warning device 97, the user or the surrounding person can be prompted to use the negative pressure generating device. In an embodiment of the invention, the warning device 97 can be implemented by a plurality of light-emitting diode lamps of different illumination colors. For example, when the negative pressure value of the negative pressure path detected by the pressure sensor has not reached a predetermined value, the control module 91 can illuminate an illuminating color LED lamp to prompt the user or The negative pressure generating device around others may have airflow leaks or blockages. When the negative pressure value of the negative pressure path detected by the pressure sensor is in a stable state, the control module 91 can illuminate another illuminating color LED lamp to indicate that the negative pressure generating device is functioning normally. .

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.

10‧‧‧Vacuum pump module

101‧‧‧Flexible intake manifold

102‧‧‧Flexible exhaust pipe

1030‧‧‧First cover

1034‧‧‧Second cover

Claims (25)

A vacuum generating device includes: a vacuum pump having an air inlet end and an exhaust end; a sound insulation module having an accommodation space for the vacuum pump, the sound insulation module for isolating the vacuum pump a noise and vibration generated by the operation of the vacuum pump; and a muffling pipe module comprising a flexible intake pipe having an open end communicating with the intake end of the vacuum pump and a flexible exhaust An open end of the tube is connected to the exhaust end of the vacuum pump, and the silencing pipe module is configured to reduce noise of the inlet end and/or the exhaust end of the vacuum pump during operation, and the muffler tube The circuit module is disposed on the surface of the soundproof module or embedded in the body of the soundproof module; wherein the soundproofing pipeline module includes the flexible air intake pipe or the flexible exhaust pipe is surrounded or bent A plurality of pipeline circuits formed. The vacuum generating device of claim 1, wherein the flexible exhaust pipe extends outward from the exhaust end to surround the sound insulating module, and a plurality of circuit loops are formed outside the sound insulating module. The vacuum generating device of claim 1, wherein the flexible exhaust pipe comprises a plurality of parallel independent pipes surrounding the outside of the soundproof module. The negative pressure generating device of claim 1, wherein the soundproof module comprises a first cover, an intermediate casing and a second cover, the flexible exhaust pipe comprising at least one A plurality of bending conduits are located inside the first cover. The negative pressure generating device of claim 4, wherein the flexible exhaust pipe comprises a plurality of the first multiple bending pipes connected in parallel. The negative pressure generating device of claim 4, wherein the flexible intake pipe comprises at least one second multiple bending pipe located inside the second cover. The negative pressure generating device of claim 6, wherein the flexible intake pipe comprises a plurality of the second multiple bending pipes connected in parallel. The negative pressure generating device of claim 1, wherein the sound insulating module comprises a first cover, an intermediate casing and a second cover, the flexible intake pipe comprising at least one Two multiple bending conduits are located inside the second cover. The negative pressure generating device of claim 8, wherein the flexible intake pipe comprises a plurality of the second multiple bending pipes connected in parallel. The negative pressure generating device of claim 1, wherein the sound insulation module comprises a first cover body, an intermediate cover body and a second cover body, wherein the flexible exhaust pipe is a fence-like pipe circuit. The first cover is disposed on a surface of the vacuum pump, and the flexible exhaust pipe is filled with a porous material. The negative pressure generating device of claim 1, wherein the sound insulating module comprises a first cover body, an intermediate casing and a second cover body, wherein the flexible intake pipe is a fence-like pipe circuit. The second cover is disposed on a surface of the vacuum pump, and the flexible intake pipe is filled with a porous material. The negative pressure generating device of claim 1, wherein the sound insulating module and the sound absorbing pipe module are selected from the following materials: silicone, plastic, ethylene vinyl acetate copolymerized plastic ( EVA) and polyurethane (PU). The negative pressure generating device of claim 1, wherein the negative pressure generating device is a portable device including a built-in power supply. A device for generating an oral negative pressure, comprising: the negative pressure generating device according to claim 1; and a mouth interface device comprising an oral interface and a gas flow conduit, the gas flow conduit passing through the oral interface Having an inlet end and an outlet end, the mouth interface is placed in the mouth of the user to fix the inlet end of the airflow conduit in the mouth of the user, and the outlet end of the airflow conduit is connected to the flexible end The other open end of the intake pipe, the air flow conduit, the flexible intake pipe, the vacuum pump and the flexible exhaust pipe form a negative pressure path to generate a negative pressure in the user's mouth surroundings. A device for producing an oral negative pressure as described in claim 14 of the patent application, wherein The flexible exhaust pipe extends outward from the exhaust end to surround the soundproof module, and forms a plurality of pipeline loops outside the soundproof module. The device for producing an oral negative pressure according to claim 14, wherein the flexible exhaust pipe comprises a plurality of independent parallel pipes surrounding the soundproof module. The device for generating an oral negative pressure according to claim 14, wherein the sound insulation module comprises a first cover, an intermediate casing and a second cover, the flexible exhaust pipe comprising at least one The first multiple bending conduit is located inside the first cover. The device for producing an oral negative pressure according to claim 17, wherein the flexible exhaust pipe comprises a plurality of the first multiple bending pipes connected in parallel. The device for producing an oral negative pressure according to claim 17, wherein the flexible intake pipe comprises at least one second multiple bending pipe located inside the second cover. The device for producing an oral negative pressure according to claim 19, wherein the flexible intake pipe comprises a plurality of the second multiple bending pipes connected in parallel. The apparatus for generating an oral negative pressure according to claim 14, wherein the sound insulation module comprises a first cover, an intermediate casing and a second cover, the flexible intake pipe comprising at least one The second multiple bending pipeline is located inside the second cover. The device for producing an oral negative pressure according to claim 21, wherein the flexible intake pipe comprises a plurality of the second multiple bending pipes connected in parallel. The apparatus for generating an oral negative pressure according to claim 14, wherein the sound insulation module comprises a first cover body, an intermediate case and a second cover body, the flexible exhaust pipe being fence-shaped A tube loop is disposed on a surface of the first cover relative to the vacuum pump, and the flexible exhaust tube is internally filled with a porous material. The apparatus for generating an oral negative pressure according to claim 14, wherein the soundproof module comprises a first cover body, an intermediate case and a second cover body, the flexible intake pipe being fenced A tubular circuit is disposed on a surface of the second cover relative to the vacuum pump, and the flexible exhaust pipe is internally filled with a porous material. The apparatus for generating an oral negative pressure according to claim 14, wherein the sound insulation module and the sound insulation pipeline module are selected from any one of the following materials: silicone, plastic, ethylene vinyl acetate copolymerization. Plastic (EVA) and polyurethane (PU).