CN105617497A

CN105617497A - Respiratory assistance device with controllable airbag and airbag control method thereof

Info

Publication number: CN105617497A
Application number: CN201410604766.0A
Authority: CN
Inventors: 李国良; 马翊宸; 林荣佑; 白胜文
Original assignee: Delta Electronics Inc
Current assignee: Delta Electronics Inc
Priority date: 2014-10-31
Filing date: 2014-10-31
Publication date: 2016-06-01

Abstract

The present invention discloses a breathing assistance device with a controllable airbag and an airbag control method thereof, wherein the breathing assistance device includes a gas supply device, a mask anti-deflation control box and a mask, wherein the mask is used to cover the user's face, and an airbag is provided on the side in contact with the user's face. The air inlet of the mask is connected to the gas supply device through a flow channel to stably output therapeutic gas to the user. The airbag is connected to the mask anti-deflation control box through a ventilation tube. When there is deflation in the mask, the mask anti-deflation control box pressurizes the airbag, causing the airbag to expand and fit tightly against the user's face, thereby making the interior of the mask airtight, thereby preventing the therapeutic gas in the mask from continuing to leak out.

Description

There is the respiratory assistance apparatus that can control air bag and air bag controlled method thereof

Technical field

The present invention relates to respiratory assistance apparatus, particularly relate on face shield, be provided with air bag, and the respiratory assistance apparatus of the degrees of expansion of air bag can be controlled, and its air bag controlled method.

Background technology

For solving the respiratory disorder of patient, market has many kinds for auxiliary equipment that assisting patients breathes. In general, this type of auxiliary equipment can include a face shield, and passes through the gas supply device that runner is connected with this face shield.

In time using this auxiliary equipment above-mentioned, user mainly needs this face shield prestowage in breathing place (generally comprising nose and face), and is provided suitable treatment gas (such as oxygen or other gas) by this gas supply device.

More specifically, this gas supply device mainly indicates according to doctor, the treatment gas of the corresponding blast of output and flow. This treatment gas exports to this face shield via runner, draws for user.

If user wants this treatment gas that this gas supply device of normal extraction exports, then user needs this face shield of correctly prestowage, makes the face of this face shield cladding user. If user does not have prestowage good, or because sleeping position impact causes this face shield to shift, it is possible to the face of this face shield and user can be allowed to depart from compact state, and then have disappointing situation to produce.

Once there be disappointing situation to produce, the blast for the treatment of gas being caused to decline, pressure control is unstable, and then therapeutic effect is reduced. Even, user is also possible to feel under the weather because of the influenced by wind pressure of disappointing noise and generation of losing heart.

In general, when there being disappointing situation to occur, it is necessary to adjust the position of face shield manually, face shield is made again to be coated with the face of user. But, if user incapability, or it is in sleep state, and around do not have other people can provide assistance, namely cannot solve this problem lost heart.

Summary of the invention

The main purpose of the present invention, is in that to provide and a kind of has the respiratory assistance apparatus that can control air bag and air bag controlled method thereof, can the air bag on face shield be controlled, and solves the disappointing problem of face shield thereby through the expansion of air bag.

Another main purpose of the present invention, is in that to provide and a kind of has the respiratory assistance apparatus that can control air bag and air bag controlled method thereof, can suitably adjust the degrees of expansion of air bag on face shield, to reduce constriction produced by user prestowage face shield.

In order to realize above-mentioned purpose, the invention provides include a gas supply device, a face shield prevents from losing heart and controls a respiratory assistance apparatus of box and a face shield. This face shield is for being coated with the face of user, and the side contacted with the face of user is provided with an air bag. The air inlet of this face shield is connected with this gas supply device by runner, with stable output treatment gas to user. This air bag prevents the disappointing box that controls to be connected by breather with this face shield. When having disappointing situation in this face shield, this face shield prevents the disappointing box that controls from this air bag being pressurizeed, and makes this airbag inflation and is close to the face of user, so as to making this face masks be air-tight state, and then preventing the treatment gas in this face shield from continuing to leak.

Technology effect that the present invention can reach against existing technologies is in that, when user does not have normal prestowage face shield so that during the treatment gas leak of face shield output, can mode by air bag is pressurizeed, make airbag inflation to be close to the face of user. Thus, it is not necessary to manually adjust the face shield of user prestowage, face shield can be made again to be coated with the face of user, and then prevent the treatment gas in this face shield from continuing to leak.

Furthermore, when the face of face shield Yu user is excessively urgent, also can suitably adjust the degrees of expansion of air bag, to reduce constriction produced by user prestowage face shield. Consequently, it is possible to the comfort level of the long-term prestowage face shield of user can effectively be promoted.

Accompanying drawing explanation

Fig. 1 is the block chart of first specific embodiment of the present invention.

Fig. 2 is the face shield schematic diagram of first specific embodiment of the present invention.

Fig. 3 is the control flow chart of the gas supply device of first specific embodiment of the present invention.

The face shield that Fig. 4 is first specific embodiment of the present invention prevents the disappointing original control flow graph controlling box.

The disappointing of the first specific embodiment that Fig. 5 is the present invention prevents flow chart.

The disappointing of the second specific embodiment that Fig. 6 is the present invention prevents flow chart.

The 3rd the disappointing of specific embodiment that Fig. 7 is the present invention prevents flow chart.

Fig. 8 is the block chart of second specific embodiment of the present invention.

Wherein, description of reference numerals is as follows:

1 ... gas supply device

10 ... runner

11 ... microprocessing unit

12 ... aerator

13 ... element of fluid

14 ... detection unit

2,2 ' ... face shield prevents from losing heart and controls box

21 ... microprocessor

22 ... lose heart unit

23 ... presser unit

24 ... the second detection unit

3 ... face shield

31 ... air bag

32 ... breather

4 ... user

S10��S30 ... rate-determining steps

S40��S46 ... rate-determining steps

S50��S56 ... prevent step

S60��S74 ... prevent step

S80��S96 ... prevent step

Detailed description of the invention

Now with regard to a preferred embodiment of the present invention, coordinate accompanying drawing, describe in detail as after.

Referring initially to Fig. 1 and Fig. 2, the respectively block chart of first specific embodiment of the present invention and face shield schematic diagram. Disclosed herein a kind of respiratory assistance apparatus having and can controlling air bag, as shown in Figure 1, this respiratory assistance apparatus mainly includes a gas supply device (GasSupplyDevice) 1, face shield and prevents the control box (MaskPreventLeakageControlBox that loses heart, MPLCB, below will referred to as this control box in description) 2 and a face shield 3. This face shield 3 is mainly used in prestowage breathing place (being generally face) at a user 4, and is coated with the face of this user 4. This face shield 3 is provided with an air bag 31 on the side contacted with the face of this user 4. This gas supply device 1 connects this face shield 3 by a runner 10, and this air bag 31 on this face shield 3 connects this control box 2 by a breather 32, and can be subject to the control of this control box 2.

This gas supply device 1 has microprocessing unit 11, aerator 12, element of fluid 13 and a detection unit 14, this microprocessing unit 11 is electrically connected this aerator 12 and this detection unit 14, this element of fluid 13 then connects this aerator 12 and this detection unit 14, and this element of fluid 13 connects an air inlet 30 of this face shield 3 by this runner 10. Specifically, one end of this runner 10 connects this element of fluid 13, and the other end connects this air inlet 30 of this face shield 3. When this gas supply device 1 starts, mainly exported wind to this element of fluid 13 by this aerator 12, so as to this face shield 3 that this element of fluid 13 is connected to this control box 2 rear end by this runner 10 supply treatment gas. In the present embodiment, this element of fluid 13 can be Venturi tube, pitot tube or honeycomb type structure etc., but is not limited.

In general, this user 4 or its caregiver mainly according to the instruction of doctor, set the discharge pressure of fan for the treatment of gas. The motor (figure does not indicate) of this aerator 12 can operate at specific rotating speed, to make this aerator 12 export the air quantity of correspondence. Consequently, it is possible to this element of fluid 13 can meet the blast of doctor's instruction, flow supplies treatment gas to this face shield 3. This detection unit 14 can be mainly pressure detector (Pressuresensor) or flow detector (Flowsensor). This detection unit 14 connects this element of fluid 13, and can be judged whether this face shield 3 one end has disappointing situation to produce by the blast for the treatment of gas with flow. In the present embodiment, if this detection unit 14 is this pressure detector, then in the way of detecting blast, determines whether there is disappointing situation produce; If this detection unit is this flow detector, then in the way of detecting flow, determines whether there is disappointing situation produce.

Furthermore, if this gas supply device 1 does not have this detection unit 14, it is also possible to the mode measuring the motor rotary speed of this aerator 12 determines whether situation generation of losing heart. Specifically, when the blast of this treatment gas meet doctor indicate time (, meet a target blast), judge whether the motor rotary speed of aerator 12 reaches a range of set value, if namely judging have disappointing situation to produce higher than this range of set value, if lower than this range of set value, it is likely to have the problem of broken pipe to produce. But, above are only preferred embodiments, but be not limited.

In the condition of normal use, this user 4 mainly draws stable gas flow with stable frequency, and therefore, this face shield 3 generally has a standard air leakage amount. For example, according to ISO17510 standard, in the disappointing head 10cmH of 4mm standard₂The air leakage amount of O is about 20L/min. Therefore, when this detection unit 14 detects the flow of this element of fluid 13 more than this standard air leakage amount (such as up to 100L/min), then can determine that this face shield 3 one end has disappointing situation to produce.

This microprocessing unit 11 is in order to control the operation frequency of this aerator 12, and then controls blast and the flow of this treatment gas. This microprocessing unit 11 also receives the testing result of this detection unit 14, and whether the one end to judge this face shield 3 has disappointing situation to produce. Further, this microprocessing unit 11, in time having disappointing situation to produce, controls this control box 2 to solve problem of losing heart, or controls this aerator 12 and compensate disappointing air pressure (holding detailed description) to increase stressed mode.

This control box 2 mainly includes the disappointing unit 22 of microprocessor 21, one and a presser unit 23, this microprocessor 21 is electrically connected this disappointing unit 22 and this presser unit 23, this disappointing unit 22 is connected this breather 32 with this presser unit 23, and connects this air bag 31 on this face shield 3 by this breather 32. Specifically, one end of this breather 32 connects this air bag 31, and the other end connects this presser unit 23 and this disappointing unit 22 respectively. In the present embodiment, this disappointing unit 22 can be electromagnetic valve or standard gas bleeder valve, and this presser unit 23 can be pump (pump) or turbine, and this air bag 31 can be silica gel air bag or close adhesive tape. But, above are only the preferred embodiment of the present invention, but be not limited thereto.

This microprocessor 21 in this control box 2 can be connected to link up via wireless transmission method with this microprocessing unit 11 in this gas supply device 1, and the circuit (figure does not indicate) that also can pass through to be arranged in this runner 10 interconnects. Further, this gas supply device 1 can provide this control box 2 to operate required power supply by this circuit.

This disappointing unit 22 can timing, the quantitatively gas in this air bag 31 of venting, to adjust the degrees of expansion of this air bag 31. Thus, it is possible to decrease constriction produced by this this face shield 3 of user 4 prestowage, and then promote the comfort level of this long-term this face shield 3 of prestowage of user 4.

When this user 4 does not have prestowage this face shield 3 (that is, this face shield 3 is not completely coated with the face of this user 4) good, when causing the treatment gas leak that this face shield 3 exports, this microprocessor 21 can receive a disappointing notice from this microprocessing unit 11. When this microprocessor 21 receives this disappointing notice, control this presser unit 23 this air bag 31 is pressurizeed, the face of this user 4 it is close to by making this air bag 31 appropriateness expand, and make this face shield 3 produce displacement, and then make this face shield 3 can again be coated with the face of this user 4, the problem thus solving to lose heart.

Continuing and refer to Fig. 3 and Fig. 4, respectively the control flow chart of the gas supply device of first specific embodiment of the present invention and face shield prevent from losing heart and control the original control flow graph of box. The present invention additionally discloses a kind of air bag controlled method, describes in detail as follows. First as it is shown on figure 3, after this gas supply device 1 is started shooting, need to first set a target blast (step S10), namely, according to the instruction of doctor, set the motor rotary speed of this aerator 12, or directly set discharge pressure of fan or the flow of this treatment gas. After having set this target blast in this step S10, the treatment procedure (step S12) of this respiratory assistance apparatus can be started. Simultaneously, this user 4 needs this face shield 3 of prestowage, and makes this face shield 3 completely be coated with the face of this user 4.

After this treatment procedure starts, this gas supply device 1 transmits a control command to this control box 2 by this microprocessing unit 11, to start this control box 2 (step S14), so as to this air bag 31 on this face shield 3 being initialized by this control box 2.

Then, this microprocessing unit 11 controls this aerator 12 and starts and start pressurization (step S16). In the present embodiment, this step S16 refers to that this microprocessing unit 11 constantly orders this aerator 12 to increase force value, till making this treatment gas of output reach this target blast. Wherein, whether this treatment gas of output has reaches this target blast, is can be detected by this detection unit 14.

After step S16, this gas supply device 1 continues through this detection unit 14 and detects discharge pressure of fan or the flow of this treatment gas, and this microprocessing unit 11 continues to determine whether that the situation lost heart produces (step S18) according to testing result. In the present embodiment, this microprocessing unit 11 mainly can determine whether that whether the discharge pressure of fan of this treatment gas or flow be abnormal, to be confirmed whether to have disappointing situation to produce. For example, this microprocessing unit 11 can in the discharge pressure of fan of this treatment gas more than this target blast, or when the output flow of this treatment gas is more than a target flow, it is judged that have disappointing situation to produce, but be not limited. If situation of not losing heart occurs, then removing one first enumerator (step s20) in this gas supply device 1, wherein this first enumerator loses heart the time (being detailed later) in order to calculate one.

If there being disappointing situation to occur, this microprocessing unit 11 sends this notice of losing heart to this control box 2 (step S22), to order this control box 2 by solving, in the way of adjusting the degrees of expansion of this air bag 31, problem of losing heart. Then, this microprocessing unit 11 judges whether this disappointing time reaches one first setting value (step S24).

More specifically, this microprocessing unit 11 counts mainly by internal this first enumerator (figure does not indicate), to confirm this disappointing time. If this disappointing time has reached this first setting value, represent that this control box 2 cannot solve above-mentioned disappointing problem with this air bag 31. Therefore, this microprocessing unit 11 controls this aerator 12 and increases pressure, to carry out the compensation (step S26) of popping pressure. After this step S26, or this microprocessing unit 11 judges when this disappointing time not yet reaches this first setting value, it is judged that whether this gas supply device 1 decommissions (step S28), i.e. whether this treatment procedure terminates. If it is not, then return to this step S18, this microprocessing unit 11 continues to judge whether have disappointing situation. If so, then this gas supply device 1 decommissions, and controls this control box 2 simultaneously and decommissions (step S30).

After consulting this step S14 execution of Fig. 4, above-mentioned Fig. 3, this microprocessor 21 in this control box 2 can receive this control instruction (step S40) that this microprocessing unit 11 transmits, so as to initial start. After this control box 2 starts, this microprocessor 21 controls this presser unit 23 and this air bag 31 is pressurizeed (step S42), to make this air bag 31 initial bubble. Then, this microprocessor 21 judges whether reach one second setting value (step S44) pressing time.

More specifically, this microprocessor 21 counts mainly by internal one second enumerator (figure does not indicate), to confirm this pressing time of this presser unit 23. If having reached this second setting value this pressing time, representing that this air bag 31 has reached a suitable degrees of expansion, therefore this microprocessor 21 controls this presser unit 23 and stops pressurization (step S46). If not yet reaching this second setting value this pressing time, then this microprocessor 21 controls this presser unit 23 persistent pressure. Technology effect of Fig. 4 is in that, before this user 4 wants this face shield 3 of prestowage, this air bag 31 of Schilling is expanded to a certain degree, so as to make this user 4 can this face shield 3 of cosily prestowage, without after prestowage, produce sense of discomfort in the contact site with this face shield 3.

Continuing and refer to Fig. 5, the disappointing of the first specific embodiment for the present invention prevents flow chart. In the use procedure of this respiratory assistance apparatus, this microprocessor 21 of this control box 2 continues to judge whether to receive this notice (step S50) of losing heart that this gas supply device 1 sends. This notice of losing heart of indication in the present embodiment, is this notice of losing heart that this microprocessing unit 11 sends in this step S22 of Fig. 3.

If not receiving this notice of losing heart that this gas supply device 1 sends, then this control box 2 is not forced this air bag 31 is pressurizeed. Otherwise, if receiving this notice of losing heart that this gas supply device 1 sends, then this microprocessor 21 of this control box 2 controls this presser unit 23, so that this air bag 31 is pressurizeed (step S52).

After this step S52, this microprocessor 21 judges whether this gas supply device 1 decommissions (step S54). If this gas supply device 1 not yet decommissions, then returning to this step S50, this microprocessor 21 continues to judge whether to receive this notice of losing heart that this gas supply device 1 transmits. So as to, this microprocessor 21 from whether continuing to receive the judgement of this notice of losing heart, can learn whether disappointing problem solves. Otherwise, if this gas supply device 1 decommissions, then this control box 2 decommissions (step S56) equally, or can decommission after receiving the instruction that this gas supply device 1 sends.

In above-described embodiment, this air bag 31, only when this face shield 3 has disappointing problem, just can be forced pressurization and then expand. But, in following embodiment, this microprocessor 21 also can the degrees of expansion of this air bag 31 of adjustment, to promote the comfort level of this user 4 this face shield 3 of prestowage.

Consulting Fig. 6, the disappointing of the second specific embodiment for the present invention prevents flow chart. In the embodiment of Fig. 6, this control box 2 has this gas bleeder valve 22, and in the present embodiment, this gas bleeder valve 22 is to realize with an electromagnetic valve. Specifically, this electromagnetic valve is only limited by this microprocessor 21 and is controlled, and only when this electromagnetic valve receives the open command of this microprocessor 21, this electromagnetic valve just can be opened, and then the gas in this this air bag 31 of breather 32 venting. When this microprocessor 21 does not send open command, this electromagnetic valve normality is closed, and the gas in this air bag 31 will not run off.

First, this microprocessor 21 of this control box 2 is judge whether to receive this notice (step S60) of losing heart that this microprocessing unit 11 transmits, if, then this microprocessor 21 controls this disappointing unit 22 and cuts out (step S62), controls this presser unit 23 simultaneously and this air bag 31 is pressurizeed (step S64). Owing to this disappointing unit 22 is main in order to the gas in this air bag 31 of venting, therefore before this step S64, this microprocessor 21 need to first cut out this disappointing unit 22, and this presser unit 23 could be made effectively to pressurize for this air bag 31.

After step S64, this microprocessor 21 judges whether this gas supply device 1 decommissions (step S66). If this gas supply device 1 not yet decommissions, then returning to this step S60, this microprocessor 21 continues to judge whether to receive this notice of losing heart that this gas supply device 1 transmits. Otherwise, if this gas supply device 1 decommissions, then this control box 2 decommissions (step S68) equally.

In the present embodiment, if this control box 2 does not receive this notice of losing heart that this microprocessing unit 11 transmits, then judge whether reach one the 3rd setting value (step S70) standby time. More specifically, this microprocessor 21 is in normal operation and the period not receiving this notice of losing heart, and is counted by this second enumerator, to confirm this above-mentioned standby time. If this standby time not yet reaches the 3rd setting value, then this microprocessor 21 continues to judge whether to receive this notice of losing heart, and continues to judge whether this standby time reaches the 3rd setting value.

If this standby time reaches the 3rd setting value, then this microprocessor 21 controls this disappointing unit 22 and opens (step S72), so as to the gas in this air bag 31 of venting. Specifically, this microprocessor 21 mainly controls to cut out after this disappointing unit 22 opens the of short duration time, and whereby, the portion gas in appropriateness this air bag 31 of venting, to adjust the degrees of expansion of this air bag 31. Consequently, it is possible to constriction produced by this this face shield 3 of user 4 prestowage can effectively be alleviated. After this step S72, the value of this second enumerator removed by this microprocessor 21, in order to recalculating this standby time.

After step S74, this microprocessor 21 judges whether this gas supply device 1 decommissions equally, judges whether to receive this notice of losing heart, and decommission when this gas supply device 1 decommissions when this gas supply device 1 not yet decommissions.

Next referring to Fig. 7, the 3rd the disappointing of specific embodiment for the present invention prevents flow chart. In the embodiment of Fig. 7, this control box 2 has this gas bleeder valve 22, and in the present embodiment, this gas bleeder valve 22 is to realize with a certain amount of gas bleeder valve. Being in that with the difference of this electromagnetic valve above-mentioned, the gas (such as venting 0.2cc per minute) in this quantitative gas bleeder valve meeting stably venting pipeline itself, not directly by the control of this microprocessor 21.

First, this microprocessor 21 of this control box 2 judges whether to receive this notice (step S80) of losing heart that this microprocessing unit 11 transmits, if so, then this microprocessor 21 controls this presser unit 23 this air bag 31 is pressurizeed (step S82). It is noted that this disappointing unit 22 owing to using in the present embodiment is quantitative gas bleeder valve, therefore before this step S82, this microprocessor 21 need not control this disappointing unit 22 and cut out.

After this step S82, this microprocessor 21 judges whether this gas supply device 1 decommissions, or whether reaches one the 4th setting value (step S84) pressing time. If this gas supply device 1 not yet decommissions, and this pressing time also not yet reaches the 4th setting value, then return to this step S80, and this microprocessor 21 continues to judge whether to receive this notice of losing heart that this gas supply device 1 transmits. Otherwise, if this gas supply device 1 decommissions, or reaching the 4th setting value this pressing time, then this control box 2 decommissions (step S86). It is noted that if this control box 2 is because reaching the 4th setting value this pressing time and decommissioning, then this control box 2 notifies this gas supply device 1 while decommissioning.

In the present embodiment, this microprocessor 21 is the period this air bag 31 pressurizeed in this presser unit 23, is counted by this second enumerator, to confirm this above-mentioned pressing time. If this pressing time not yet reaches the 4th setting value, then this microprocessor 21 continues to judge whether to receive this notice of losing heart, if continuing to receive this notice of losing heart, then controls this presser unit 23 persistent pressure. If this pressing time has reached the 4th setting value, then control this control box 2 and decommission.

If this control box 2 does not receive this notice of losing heart that this microprocessing unit 11 transmits, then judge whether a certain amount of disappointing time reaches one the 5th setting value (step S88). More specifically, this microprocessor 21 is in normal operation and the period not receiving this notice of losing heart, and is counted by one the 3rd enumerator (figure does not indicate), to confirm this above-mentioned quantitatively disappointing time. If this quantitatively loses heart, the time not yet reaches the 5th setting value, then this microprocessor 21 continues to judge whether to receive this notice of losing heart, and continues to judge whether this time of quantitatively losing heart reaches the 5th setting value.

If this quantitatively loses heart, time reaches the 5th setting value, then this microprocessor 21 controls this presser unit 23 this air bag 31 is pressurizeed (step S90), so as to increasing the gas in this air bag 31, makes this air bag 31 be expanded to suitable size. For example, the optimum of the gas flow in this air bag 31 can be 80cc to 90cc, and this disappointing unit 22 can quantitatively disappointing 0.2cc per minute. In this example, this microprocessor 21 initially controls this presser unit 23 and this air bag 31 is pressurizeed, make the gas flow in this air bag 31 reach 90cc, and calculate a working cycle (dutycycle) by the 3rd enumerator and the 5th setting value. Lose heart when this disappointing unit 22 stabilizes to this air bag 31, and when making the gas flow in this air bag 31 reduce to 80cc after this working cycle, this microprocessor 21 automatically controls this presser unit 23 and again pressurizes for this air bag 31, to make the gas flow in this air bag 31 revert to 90cc. Consequently, it is possible to the phase interworking of this disappointing unit 22 and this presser unit 23 can be passed through, make the gas flow in this air bag 31 can maintain in the scope of the best, allow this user 4 can obtain the comfort level of the best when this face shield 3 of prestowage whereby.

After this step S90, the value (step S92) of the 3rd enumerator removed by this microprocessor 21, quantitatively loses heart the time in order to recalculating this. After this step S92, this microprocessor 21 judges whether this gas supply device 1 decommissions (step S94). If this gas supply device 1 not yet decommissions, then returning to this step S80, this microprocessor 21 continues to judge whether to receive this notice of losing heart that this gas supply device 1 transmits, and continues to judge whether this time of quantitatively losing heart reaches the 5th setting value. Otherwise, if this gas supply device 1 decommissions, then this control box 2 decommissions (step S96) equally.

The respiratory assistance apparatus of the present invention uses above-mentioned air bag controlled method, it is possible to when this face shield 3 has disappointing situation to produce, and automatically solves, by the mode that this air bag 31 is pressurizeed, problem of losing heart. Furthermore, produce even without disappointing problem, this respiratory assistance apparatus also can pass through this disappointing unit 22 in this control box 2 and the running of this presser unit 23, in time carries out the action lost heart Yu pressurize for this air bag 31, so as to making the gas flow in this air bag 31 maintain in optimal scope. Consequently, it is possible to this user 4 can be allowed when this face shield 3 of prestowage to obtain the comfort level of the best.

Consult Fig. 8, for the block chart of second specific embodiment of the present invention. Block chart shown in Fig. 8 discloses another and controls box 2 ', it is in that with the difference of this control box 2 aforesaid, being also equipped with one second detection unit 24 in this control box 2 ', wherein this second detection unit 24 is electrically connected this microprocessor 21, and is connected to the other end of this breather 32.

In the present embodiment, this second detection unit 24 can be mainly a pressure transducer, in order to detect the pressure condition of this air bag 31 via this breather 32. So arrange and be advantageous in that, this microprocessor 21 can pass through the testing result of this second detection unit 24, regulate and control this disappointing unit 22 (when this disappointing unit 22 is for electromagnetic valve) and this presser unit 23 at any time, so as to making this air bag 31 maintain a best pressure state so that this user 4 can obtain the comfort level of the best when this face shield 3 of prestowage.

The foregoing is only the preferred embodiments of the present invention, non-the scope of the claims therefore namely limiting to the present invention, therefore such as use the equivalence that present invention is done to change, be all in like manner all included within the scope of the present invention, close and give Chen Ming.

Claims

1. A breathing assistance device with a controllable air bag comprising:

A face mask, mounted on the breathing place of a user, is provided with an airbag on the side contacting with the user, and the face mask has an air inlet;

A gas supply device, connected to the air inlet through a flow channel, outputs a therapeutic gas to the mask through the air inlet; and

A control box is connected to the airbag through a ventilating tube, and controls the expansion of the airbag when the mask has a leak.

2. The breathing assistance device according to claim 1, wherein the airbag is a silicone airbag or a sealing strip.

3. The breathing assistance apparatus of claim 1, wherein the gas supply device comprises:

a blower;

A fluid unit, connected to the blower and the flow channel, supplies the treatment gas to the mask through the output air volume of the blower;

A detection unit, electrically connected to the fluid unit, to detect the output wind pressure or flow rate of the therapeutic gas;

A micro-processing unit is electrically connected to the detection unit and the blower, and judges whether the mask is leaked according to the detection result of the detection unit, and sends a leak notification to the control box when there is a leak.

4. The breathing assistance apparatus of claim 3, wherein the control box comprises:

a microprocessor to receive the deflation notification; and

A pressurizing unit is electrically connected to the microprocessor and connected to the ventilation tube, and pressurizes the air bag according to the control of the microprocessor.

5. The breathing assistance device as claimed in claim 4, wherein the microprocessing unit of the gas supply device is wirelessly connected with the microprocessor of the control box, or is electrically connected through a line in the flow channel.

6. The breathing assistance device as claimed in claim 4, wherein the control box further comprises a deflation unit, electrically connected to the microprocessor, and connected to the ventilation tube, for deflecting the gas in the airbag to adjust the airbag degree of expansion.

7. The breathing assistance device according to claim 6, wherein the deflation unit is a solenoid valve or a quantitative deflation valve.

8. The breathing assistance device as claimed in claim 6, wherein the control box further comprises a second detection unit, electrically connected to the microprocessor, and connected to the ventilation tube, to detect the pressure condition of the airbag, and the microprocessor The controller controls the air leakage unit and the pressurizing unit according to the detection result of the second detection unit.

9. An airbag control method, which is applied to a breathing aid, which includes a gas supply device, a control box and a mask, one side of the mask is provided with an airbag, and the gas supply device is connected to the mask through a flow channel connected to an air inlet of the mask, and output a treatment gas to the mask, the control box is connected to the air bag through a ventilation tube, and the air bag control method includes:

a) The control box judges whether to receive a deflation notification;

b) controlling a pressurizing unit to pressurize the airbag when receiving the deflation notification;

c) Repeat step a) to step b) before the gas supply device stops working; and

d) Stop working when the gas supply device stops working.

10. The air bag control method as claimed in claim 9, wherein the control box includes a leaking unit connected to the ventilation pipe, and the leaking unit is a solenoid valve, wherein the step b) comprises the following steps:

b1) If the leak notification is received, control the solenoid valve to close; and

b2) After step b1), the pressurizing unit is controlled to pressurize the airbag, so that the airbag is inflated and close to a user's face, so that the mask covers the user's face.

11. The airbag control method as claimed in claim 10, further comprising the following steps:

e) if the deflation notification is not received, determine whether an idle time reaches a first set value;

f) If the idle time reaches the first set value, control the deflation unit to open, so as to adjust the inflation degree of the airbag.

12. The air bag control method as claimed in claim 9, wherein the control box includes a gas leaking unit connected to the ventilation pipe, and the gas leaking unit is a certain amount of gas leaking valve, wherein the step d) judges whether the gas supply device stops working , or whether a pressurization time of the pressurization unit reaches a second set value, and the control box stops operating when the gas supply device stops operating or the pressurization time reaches the second set value.

13. The airbag control method according to claim 12, further comprising the following steps:

g) If the deflation notification is not received, determine whether a certain amount of deflation time reaches a third set value;

h) controlling the pressurizing unit to pressurize the airbag when the quantitative deflation time reaches the third set value, so as to adjust the inflation degree of the airbag.

14. The airbag control method as claimed in claim 9, wherein the step a) also includes the following steps before:

a01) the control box receives a control command to initially start; and

a02) Controlling the pressurizing unit to pressurize the airbag according to the control instruction, so as to initially inflate the airbag.

15. The airbag control method as claimed in claim 14, further comprising the following steps:

a03) After step a02, judging whether a pressurization time of the pressurization unit reaches a fourth set value;

a04) If the pressurization time reaches the fourth set value, control the pressurization unit to stop pressurization.

16. The airbag control method as claimed in claim 9, wherein the step a) also includes the following steps before:

a05) The gas supply device sets a target wind pressure of the treatment gas;

a06) start a treatment procedure; and

a07) After step a06), send the control command to the control box, so that the control box is initially activated.

17. The airbag control method as claimed in claim 16, further comprising the following steps:

a08) The gas supply device detects whether the output wind pressure or flow rate of the therapeutic gas is abnormal, so as to determine whether there is a deflation at one end of the mask;

a09) sending the leak notification to the control box when a leak occurs.

18. The airbag control method as claimed in claim 17, further comprising the following steps:

a10) The gas supply device judges whether a deflation time reaches a fifth set value;

a11) When the deflation time reaches the fifth set value, control a blower to increase the pressure, so as to compensate the deflation pressure.

19. A breathing assistance device having a controllable air bag comprising:

A mask with an air inlet and an air bag on the side contacting the user;

a flow channel, one end of which is connected to the air inlet;

a blower;

A fluid unit, connected to the blower and the other end of the flow channel, outputs a treatment gas through the output air volume of the blower, and the treatment gas is output to the mask through the flow channel and the air inlet;

A micro-processing unit, electrically connected to the detection unit and the blower, and sends a gas leak notification when the output pressure or flow of the therapeutic gas is abnormal;

a ventilation tube, one end of which is connected to the air bag;

a microprocessor, coupled to the microprocessor unit, receives the deflation notification; and

A pressurizing unit is electrically connected to the microprocessor and connected to the other end of the ventilation tube, and pressurizes the airbag to inflate the airbag when the microprocessor receives the deflation notification.

20. The breathing assistance device as claimed in claim 19, further comprising a venting unit electrically connected to the microprocessor and connected to the other end of the ventilation tube for venting the gas in the air bag.

21. The breathing assistance device as claimed in claim 19, wherein the micro-processing unit is wirelessly connected with the microprocessor, or electrically connected through a line in the flow channel.

22. An airbag control method, applied to a breathing assistance device, which includes a gas supply device, a control box and a face mask, an airbag is arranged on one side of the mask, and the gas supply device is connected to the mask to output a For therapeutic gas, the control box is connected to the air bag, and the air bag control method includes:

a) The gas supply device detects whether the output wind pressure or flow rate of the therapeutic gas is abnormal, so as to determine whether there is a leak at one end of the mask;

b) The gas supply device issues a gas leak notification when a gas leak occurs;

c) the control box determines to receive the deflation notification; and

d) The control box controls a pressurizing unit to pressurize the airbag according to the deflation notification, so as to inflate the airbag.

23. The airbag control method as claimed in claim 22, wherein in the step a), the gas supply device determines that there is a deflation situation when the output wind pressure of the therapeutic gas is greater than a target wind pressure.

24. The airbag control method as claimed in claim 22, further comprising the following steps:

e) The gas supply device judges whether a deflation time reaches a first set value;

f) The gas supply device controls a blower to increase the pressure when the deflation time reaches the first set value, so as to compensate the deflation pressure.

25. The air bag control method as claimed in claim 24, wherein the control box has a solenoid valve connected to the vent pipe, the air bag control method also includes the following steps:

g) if the leak notification is not received, the control box judges whether an idle time reaches a second preset value; and

h) The control box controls the solenoid valve to open when the idle time reaches the first set value, so as to adjust the inflation degree of the airbag.

26. The air bag control method as claimed in claim 24, wherein the control box has a certain amount of air release valve connected to the ventilation pipe, and the air bag control method also includes the following steps:

i) If the deflation notification is not received, the control box judges whether a certain amount of deflation time reaches a third preset value; and

j) The control box controls the pressurizing unit to pressurize the airbag when the quantitative deflation time reaches the third set value, so as to adjust the inflation degree of the airbag.