TW464519B - Humidity controller - Google Patents

Abstract

A breathing assistance apparatus adapted to deliver humidified gases at a desired level of humidity to a patient including a humidifier and a heated conduit is disclosed. The humidifier includes a controller which determines the flow rate of the gases and then determines the required power input to the humidifier to deliver the gases to the patient at the required patient humidity. This means the need for external sensors is dispensed with and thus the apparatus is simple and less bulky.

Description

A7 d 6 4 5 1 9 ._______ B7__ V. Description of the Invention (i) Technical Field The present invention relates to respiratory assistance equipment, especially a device that can not only supply a gas with an optimal humidity and temperature to a patient to help the patient breathe. BACKGROUND OF THE INVENTION There are many methods in the art for assisting the patient's breathing. Continuous positive airway pressure or CPAP is usually introduced into the patient through a nasal mask through pressurized air, which is used for snoring and sleep breathing disorder (OSA). Treatment of this condition is characterized by repeated depression of the upper airway upon inhalation. Positive pressure can keep the upper airway open and prevent it from sinking. The use of nasal CPAP for OSA has been proven to be effective and safe. However, CPAP is difficult to use, and most patients will have obvious side effects, especially in the early treatment stage. Airway symptoms have an adverse effect on CPAP treatment, dry mucus can be uncomfortable, and may wake patients at night, followed by nasal congestion reactions similar to viral infections during the day. If left untreated, upper airway symptoms affect CPAP. The utilization rate will be adversely affected. The increase in nasal resistance will affect the degree of CPAP treatment of the pharynx and reduce the efficacy. Each patient using CPAP must measure their own pressure, and this pressure is set in a mask. The change in nasal resistance will affect the pharynx. Pressure *, and if the change is large enough, snoring or airway depression may occur. This phenomenon may also occur in a hospital environment where the patient is wearing a respirator, usually in which case the patient is intubated Treatment, so the throat tissue may cause pain to the patient due to irritation and swelling, and may be in accordance with the Chinese National Standard (CNS) A4 specification (210 X 297 public love) on this paper. ≪ Please read first? (ΪReverse; t fill in this page again)

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C Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4

5. Description of the invention (2) One step leads to breathing problems. There are many ways to treat this type of upper airway symptoms, including using medications to alleviate rhinopathy or warming the bedroom. One of the most commonly used methods is to humidify the inhaled air with an in-line humidifier. Two types of humidifiers are currently used. The cold-through humidifier relies on air to be swept through a large area of water to become humid, but its price is low. The humidity output is relatively low at a high flow rate of about 25 L / min, which is generally 2 to 4 mg / L. Its output is not sufficient to prevent the mucus from drying out. The heated water bath lubricator is more efficient, and can still generate a relatively high humidity even at high flow rates. It is very effective in preventing the upper airway mucus from drying and preventing the increase in nasal resistance, and it is the most reliable for treating upper airway symptoms. Of the device. To some extent, 'any of these active systems will cause condensation (or rain out) in the piping connecting the humidifier to the patient. The degree of condensation is greatly affected by the surrounding environment. The greater the difference, the higher the degree of coagulation. The large amount of water formed in the breathing tube can cause considerable inconvenience to the patient and may accelerate air cooling * and eventually become absorbed in the tube or discharged into the patient. Moreover, patients may feel uncomfortable when there is a large difference between respiratory discouragement and the temperature of the garden. Excessive condensation can also result in inefficient use of water in the humidification chamber. In the hospital environment, the air temperature inside is controlled by cold air. For example, the required temperature of the humidified gas supplied by the equipment can be controlled within a temperature setting parameter that is close to the ambient temperature 'to prevent condensation in the catheter. When it is actually supplied to the patient, the temperature and humidity of the gas must be well controlled. This paper size applies to China National Standard (CNS) A4 specifications (210 * 297 mm) 1IIIIIIIIII1 — * III l · II 1 alt — — — — — · (Please read the notes on the back before filling this page) Ministry of Economic Affairs Intellectual Property Bureau Employee Consumption Cooperation Du printed by the Ministry of Economic Affairs Intellectual Property Bureau Work Consumption Cooperation Du printed 464519 A: _____B: V. Invention Description (3) In the home care environment, 'users need to use humid equipment at home' surroundings The gas temperature may exceed the hospital environment by a lot. In home care environments, users usually wear a mask and connect to the end of the catheter, and this fishing lake device can be used to treat breathing and sleep breathing disorders in the home environment. Or use with ventilators or CPAP devices. In addition, non-active systems often use known vented humidification techniques. In U.S. Pat. No. 5,649,951 issued to Fisher and Paykel, a heating catheter for moisturizing breathing aids was issued, with a temperature probe at the end of the heating catheter. By heating the tube, the problems related to condensation in the tube can be solved. However, in order to establish a closed-circuit type control of the temperature of the supply gas (and the power input to the heating element of the tube), the temperature near the supply point must be measured as much as possible. In view of this, the 'temperature probe and its associated wiring make it quite cumbersome to wear on a mask or intubation patient, and make the patient feel more uncomfortable. Therefore, it is very advantageous if the heating catheter used in the wet breathing aid device can be operated without attaching a temperature probe to the end of the catheter, and when the catheter heater is energized, it is also advantageous if some signs indicate that it is operating correctly. . SUMMARY OF THE INVENTION One of the objectives of the present invention is to provide a respiratory assistive device that can more or less overcome the above disadvantages, or at least provide the public or the industry with a useful option. Therefore, the first aspect of the present invention lies in a breathing aid device suitable for injecting a humid gas of ideal humidity or temperature into the patient Zhao, including: This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 cm) 〉 6 ^ 1 ^ 1 ^ 1 ^ 1 ϋ / 1! N ^. Nnn Itb κι Order --------- 4 (Please read the notes on the back of tf before filling this page) Intellectual Property Bureau of the Ministry of Economic Affairs Printed by employee consumer cooperative A7 _B7__ 5. Description of the invention (4) A humidification device with an electrical input power and capable of moistening the gas to a certain humidity before being input into the patient's body, the humidity depends on the humidification device provided to the humidification device Input power for delivery of the humidified gas from the humidified device to the patient's delivery channel device, and a control device containing the following storage instructions: (a) determine parameters related to the flow of the gas through the device; (b) at least according to This parameter determines the electrical power required to input the wet device in order to input a certain humidity or the gas at a temperature substantially the same as the ideal humidity or the ideal temperature into the patient's body; (c) substantially the same as the input The specific power of the humidifying device is the same as the power input into the humidifying device. A further aspect of the present invention is a breathing assistance device for humidifying a gas to a desired humidity or a desired temperature, which includes: its electric power can wet the gas to a certain humidity The humidification device depends on the input power provided to the wetting device and the control device containing the following storage instructions: (a) Uncertain parameters regarding the flow of the gas through the device; (b) At least according to the parameters Decide to input the electric power required by the humidifying device to humidify the gas to a certain humidity or substantially the same temperature as the ideal humidity or the ideal temperature; (c) the power that will be substantially the same as the specific power input to the humidifying device Enter the wetting device. A further aspect of the present invention is that it is suitable to apply the ideal humidity or the ideal temperature paper size to the Chinese National Standard (CNS) A4 specification (210 * 297 mm) -------------------- Installation---- = ---- Order -------- · Line (please read the notes on the back before filling this page) A7 46 45 1 9 __B7 V. Description of the invention (5) Degree Wet Respiratory assistance equipment for delivering gas to a patient, which includes a humidifying device whose electrical input power is capable of moisturizing the gas to a certain humidity before being input into the patient, and the humidity depends on the humidifying device provided to the patient. Input power for feeding the humidified gas from the wet device to the patient's carousel channel device, and a channel heating device having an electric input power and connected to the transport channel device, wherein The gas is heated directly or indirectly by the channel heating device, and the degree of heating depends on the input power provided to the channel heating device; the input power is provided to the wetting device and the control device of the channel heating device, and the channel is displayed. Whether the heating device is correctly connected to the control device and a control output that operates according to predetermined restrictions: and a connection device that electrically connects the control device with the channel heating device and has an indicator connected to the control output, where when The channel heating device is correctly connected to the control device and according to a predetermined limit When the operating conditions are controlled, the control device will supply power to the indicator β. For those who are familiar with the related technology of the present invention, the present invention can make many structural changes and various different embodiments and applications without departing from the present invention. In accordance with the scope defined in the scope of the attached patent application, the content described herein is purely for illustration and does not cause any conceptual limitation. Brief description of the drawings Now, one of the preferred categories of the present invention will be described with reference to various appended circles. This paper size applies to China National Standard (CNS) A4 specification (210 X 297 male cage) < tA Read the precautions on the back before filling this page), install ---- l · ——order ----- ---- Printed by Shelley Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs ____B7_____ V. Description of Invention (6), where: Figure 1 is a diagram of a respiratory moisturizing system, Figure 2 is a respiratory moisturizing system of Figure 1 Fig. 3 is a block diagram of a control system for controlling a humidifier in a preferred embodiment of the present invention. Fig. 4 is a flowchart of an algorithm for controlling a heating wire in a breathing tube. Fig. 5 is When the pressure is controlled to a constant Example of how the heating plate temperature changes with time of the first heating plate 6 graph of power versus flow rate, the ring 7 and the first conduit is a graph of the heating element and the flow of power. The present invention describes in detail whether it is used in a hospital environment or a home care environment. Generally, the present invention will have two related main devices. First, it is an active lake full device, which controls the heating of a large amount of water to reach an ideal temperature. The heating plate and the humidity of the moistened gas 'Second, a delivery catheter from the moisturizer to the patient is also required. It is best to be heated to reduce the condensation phenomenon, or it is called "rain out" β' Ministry of Economy Wisdom Printed by the Shell Bureau Consumer Cooperative of the Property Bureau. Refer to the first circle. A rounding equipment 1 commonly used in hospitals is shown in the circle. The equipment includes a body 2 containing a heating device. The heating device includes a heating plate 20 and a control device such as The electronic circuit has an electric heating element in the heating plate or makes thermal contact with it. The electronic circuit contains a microprocessor to control the energy supplied to the heating element. The body 2 is engaged with the humidification chamber 3 in a movable manner. Water used for humid air. See 4 β 4 5 ϊ 9 a; ---------- Β7 V. Description of the invention (7) (Please read the precautions on the back before filling (This page) See Figure 2 for a more detailed illustration of a humidifying device. The edge of the humidifying chamber 3 is engaged with the collar 24 on the humidifying device. For example, the gas to be humidified may be air, oxygen, and anesthetic. A mixture is input into the room through a gas inlet 4, which can be connected to a ventilation device or a CPAP blower during cpAp treatment. A gas outlet 5 'is also provided and the gas outlet 5 is connected to humidify the gas. The vessel is transported to a remote destination such as the end 7 of the catheter 6 (Figure 1) of the intubated patient. In addition, the end of the catheter 7 can be fitted with a mask, which is used to cover the user's nose or mouth to provide moisture The gas is breathed to the user, just like when performing CPAP treatment. The heating plate 20 of the humidifier has a temperature energy converter 8 which is energized with the electronic control circuit in the equipment ship 2 so that the control device can monitor the heating plate. Temperature》 Therefore, a heating element 10 is arranged in the duct 6, which helps prevent the wet gas from condensing in the duct. This condensation phenomenon is caused by the temperature of the tube wall being close to the surroundings. Degrees (ambient ambient temperature) is usually lower than the temperature of the wet gas in the duct. The heating element can effectively replace the energy loss caused by the gas transmitted to the duct through conduction and convection. Therefore, the duct heating element can ensure that Good temperature "Delivered under the degree and humidity β Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economics This invention provides that whether in a humid room or in a duct, at least the heating plate can be controlled without any sensor, preferably also A device for the heating element of a duct. This is achieved by estimating the flow rate of gas through the humidifier using known controller parameters. For a particular humidifier, 'the appropriate power can then be determined' to supply The heating plate is connected to the ideal air temperature and input into the patient's boat. In addition, it can be used to provide a more suitable 10 paper size applicable to the Chinese National Standard (CNS) A4 specification (2) 0 X 297 public love) Ministry of Economic Wisdom Printed by A7 B7, Consumer Cooperative of Property Bureau, V. 5. Description of the invention (8) When the energy is applied to the heating element of the duct, it not only saves the cost of additional sensors And make the device connected to the end of the catheter simpler and lighter. In the preferred embodiment of the present invention, the controller shown in FIG. 3 uses a certain input range and simultaneously controls the power 108 supplied to the heating plate 11 () and the power supplied to the duct heating element 116. If any). In some applications, it can also be used to provide control commands to auxiliary equipment such as a fan of a hair dryer. The controller 100 can use the internal algorithm 106 to calculate the power 108 supplied to the humidifier heating plate 110 to reach the specified humidity or air chain temperature (or calculate the temperature to reach the specified power) at the top of the humidification chamber. It then uses the second This algorithm 102 calculates the power 114 ′ required to supply the catheter heating element 116 and the humidifier heating plate 110 so that the gas input into the patient 118 reaches the optimal temperature or humidity. Referring to Figure 4, when the humidifier activates the controller and performs a control operation, it will control the heating plate, and if a duct heating element is installed, it will also control the duct heating element. * Initially, the 128 heating plate was controlled at 40 ° C. At a temperature, the heating element of the catheter can carry 50 ° /. The working cycle of “• then monitoring the temperature of the 130 heating plate (or the power supplied to the heating plate) until it reaches a stable state ~ state” can overlap a window 132 above the heating plate temperature contour line 134, an example of which is shown In Figure 5. When the contour line 134 (during the appearance of the entire window) is completely within the boundary of the window 132, it is considered that a stable state has been reached. Once so, the controller enters a calculation stage. First, it calculates the gas 136 flow using one of the many methods described later. Secondly, calculate the required heating plate power using the known gas flow rate. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 11 --------! 1 pack --- -Γ --- Order ·! (Please read the notes on the back before filling this page) A7 464519 ___ V. Description of the invention (9) < Please read the notes on the back before filling this page) 138 (or Heating plate temperature) 'to achieve the ideal gas temperature / humidity (or heating plate power). I have used the humidifier and heating duct described in US5640951 to determine a certain relationship by empirical rules, the content of which is listed here as a reference. For any other configuration, the actual relationship must be determined by empirical rules, or using experimental methods or theory Method to calculate. The relationship between the ideal temperature of the gas leaving the humidifier, for example, 37 ° C, and the relationship between the power (ρΗρ >) supplied to the heating plate, the gas flow rate (Fgas), and the ambient temperature (Tamb) is shown in Figure 6. The extrapolation method approximates a general algebraic equation in which the controller can measure the amount of power supplied to the heating plate:

Php = (-〇.1239 X Tamb + 5.383) X Fg # s + (-0.3112 X Tamb + 10.738) -c Printed by the Intellectual Property Bureau of the Ministry of Economy, Shellfish Consumer Cooperative, the third 'This algorithm can calculate the input conduit heating wire 14〇 The required power 'is to input the ideal temperature of the gas vessel into the patient's effectiveness. Β Use a known flow of gas.' Once the gas has flowed through a known characteristic duct surrounded by an atmosphere of known or assumed ambient temperature ', the gas can be calculated. The final temperature. The thermal properties of the duct are either known or can be calculated experimentally. This relationship is not based on empirical data, but is obtained using the humidifier and heated duct described in US5640951. For any other configuration, the actual relationship must be determined empirically through experiments or calculated theoretically. Using the 37 ° C temperature gas entering the catheter and the 40 ° C gas entering the patient's body, the relationship between the gas flow rate (Fgas), the power of the input heating element of the catheter (pe), and the ambient temperature (Temb) is shown in section Figure 7 'This system uses extrapolation to obtain a general algebraic equation:

Pc-(-0.0005 ^ Tamb + 0.0169) Fgas2- [l〇- ^ Tainb3.〇.〇〇42 * Teinb2 + 0.2189 * Tamb-3.0075] Fgas-1.0169 * Tamb + 38.956 12 This paper size applies to the Chinese National Standard (CNS) Regulation A4 (210 ^ 297 public love) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 _______B: ____ V. Description of the invention (10) In fact, this relationship can be simplified, so that Pc depends only on Tamb, which is a conduit The approximate value acceptable for the heating element is that it is not as important as the heating plate. Once the heating plate and duct heating elements are properly powered, the controller continuously monitors 142 the system for any changes in the variables. The main reason is to avoid overheating, that is, the flow rate is suddenly reduced, and the gas temperature will become high and dangerous. In order to monitor effectively, we have adopted two methods. The first is to monitor the traffic ’and the second is to monitor the traffic changes (relative to time) at the same time. The first method 144 allows the system to respond to any changes in the system, and the second method 146 is a fast-response system to avoid overheating β where pHp or THP is controlled to a constant value and any other flow changes can be monitored by monitoring other variables' Or any other variable that needs to be recalculated. In order to monitor the flow, the variable χ (defined as pHp / THp) that is closely related to the flow must be continuously calculated and monitored. If the variable rises, a 30-minute delay will occur before the controller starts a recalculation procedure to avoid Let misread and unnecessary calculations. If it drops, there will be a 30-minute delay before the controller recalculates to avoid any possibility of overheating or transient overheating of the delivery gas. When a huge change occurs, the controller must respond quickly. In this case, the 'controller will be reset to the initial conditions and wait until the system is stable again' because any temporary calculation is meaningless. To achieve this, dx / dt must be calculated and monitored. Since negative values are more dangerous, any deviation above a fixed value will reset the controller. Dimensions of this paper: 1 National Takarazuka Standard (CNSU4 Specification: CU 297 Public Magic 13 ------------ Installation ----- Order 1! 1--! · Line (Please read the note on the back first) (Fill in this page again) 464519 A7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs _____B7 _ V. Description of the invention (U) In another embodiment of the present invention, the predetermined heating plate temperature is calculated using the following formula: ' THP = -7.3319 * Ln (Fgas) +63.655 and if the actual heating plate temperature difference is more than 5.0, the program will recalculate the required power. So in summary, the controller will complete the following steps: v Estimate the gas flow And keep all variables constant 136. 2) Estimate the heating plate power / temperature required for the gas in the humidification chamber 1 to reach a specific temperature / humidity. 3) Calculate the power of turning the heating wire into the ideal output temperature. It should be understood that the power input to the heating element of the duct will be higher under the following conditions: i) the gas flow is reduced, Π) the ambient temperature is reduced, iii) the difference between the ambient temperature and the gas temperature is increased, and it should be understood that Relative to power, the temperature of the heating plate can be controlled at a set value (using closed-loop control>). In this case, we will monitor the output power as a measure of system stability, and when the relationship between them is algebraic The method can also be stored in the look-up table. The first preferred embodiment of the flow rate estimation. Generally, when used in a hospital setting, the humidifier described in the present invention will supply humidified gas to the respirator. Latent patients may use a breathing mask. Because this humidifier does not need to rely on a respirator to be effective (please read the precautions on the back before filling out this page>

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n It t— V spring, this paper size applies the Chinese national standard (CNS > A4 specification (210 * 297 public cage) 14 A7 B7 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. The invention description (I2) operates, so All its controls need only be determined by the sensors installed in it. In a preferred embodiment of the present invention, first, the power input 108 required by the humidifier heating plate can be compared with the heating plate temperature measured by the heating plate. Estimate the gas flow through the humidification chamber. In fact, the higher the gas flow, the greater the power required by the heating plate in order to reach the specified heating plate temperature. Therefore, for a specific system, at a known heating plate temperature, the power of The relationship between the heating plate and the flow rate is determined empirically or theoretically. If the humidifier and heating duct described in US5640951 are used again, the relationship determined by the empirical rule applies: ρ ^-(0-831-0.0049 » 7; J + ^ 0.831-0.0049 »Tjf-(4« (〇, 00004 ^ rjMt-Q.Q05 ^ ((l4348-0.25 «7 ^)-Pm) \ S〇 '2 ^ 0.0004 ^ 7 ^ -0.005 ^ PHP is a special additive to make the heating plate reach 50 ° C steady state. The power required for the board temperature, Tandb is the ambient temperature, and Fgas is the gas flow rate. It should be understood that this method is more suitable for hospital care environments where the ambient temperature can be kept constant. The second preferred embodiment of flow rate estimation is In the home and home environment, the present invention is often used with a continuous positive airway pressure (CPAP) device or a breathing apparatus including a fan, such as described in US Patent No. 6050260, the contents of which are incorporated herein by reference. It is understood that in this application the controllers of various devices may be connected together so that data can be easily exchanged. In this case, the gas flow can be obtained directly from the fan or equipped with a flow sensor. Information is estimated. This paper size applies the Chinese National Standard (CNS) A4 specification (210 * 297 public love) 15 ---------- Install -----:-II Order ·!- — -Line < Please read the notes on the back before filling in this page > Printed by the Intellectual Property Bureau, Ministry of Economic Affairs, Employee Consumption Cooperative, 46 45 19 A7 ___B7________ 5. Description of the Invention (η) In the embodiment of the present invention, the flow rate is Calculated according to the fan load. 'Usually the fan can be controlled to run at a certain speed, so it can output a fixed pressure.' The air flow will depend on the restrictions of the flow path. In order to maintain a certain speed, the fan needs a fixed power input. Therefore, for a fan with known characteristics, 'the actual gas flow rate and the input fan power can form an algebraic relationship.' This relationship can be calculated experimentally or by using specific motor characteristics in a theoretical way. Decide. There are many known methods in the art that measure the load of the motor by the power provided by the motor. The simplest method is to first measure the current 148 output by the fan 150, as shown in the third circle. The current 148 is an input to the conduit heating element controller 102, and an algebraic relationship or lookup table can be used to determine the gas flow. For example, in US5740795, a method for simultaneously estimating the flow rate using a motor voltage and current is described, and the contents thereof are incorporated herein by reference. Although the present invention has published a method above, it should be understood that other methods based on current calculations are also applicable. The third preferred embodiment of the flow estimation is described in the second embodiment of the target. In some cases, a flow sensor can be pre-arranged in the gas flow path. In this example, the gas flow 152 can be directly sensed from the flow. The humidifier 154 is known and used as an input of the humidifier controller 100, as shown in the third circle. It is then directly used in the duct heating element controller 102 to determine the power to be supplied to the heating plate 110 according to the algorithm shown in Fig. 4 and the foregoing. Heating wire adaptor This paper size is applicable to China National Standard (CNS) A4 specification (210 * 297 mm) 16 i HIII ^-J · -'— 4 '· -pack --- t--11 order- -——Wire r (please read the note 4 on the back before filling this page) A7 ______B7______ V. Description of the Invention (Μ) In order to connect the heating element of the duct with the power supply in the humidifier, a transfer cable is required. In a preferred embodiment of the present invention, the adapter 200 includes an indicator 202, which can indicate whether the heating element of the catheter is operating correctly when the adapter is inserted, as shown in the first circle. Reading and detecting the heating element of the catheter and judging whether it operates correctly, it is completed by intermittently supplying power to the heating element of the pilot camp, and if the expected current is reached, it will supply power to an indicator (such as an LED). The above description provides a new method and device for controlling the temperature of the heating plate in the humidifier to supply humidified gas to patients undergoing respiratory therapy. The advantage is that the system is simpler, cheaper and free of external sensors Lighter, it can also be Effectively control the power supply of the heating element of the conduit to ensure that the entire system operates as efficiently and correctly as possible. ------------- Installation ---- l · --- Order · {Please read the back of U first Please pay attention to this page, please fill in this page)-Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, and printed by the Cooperative Consumer Cooperatives, 17 paper size @ ϋ (CNS) A4 size (210 X 297 public love) 4 G 4 5 1 9 A7 _B7 V. Description of the invention (15) 1 ... Wetting device 2 ... Body 3 ... Wet chamber 4 ... Inlet 5 ... Outlet 6 ... Conduit 7 ". End 8 ... Energy converter 10, 116 ... Heating element 20, 110 ... Heating plate 24 ... collars 100, 102 ... controller 106 ... algorithms 108, 114, 138 ... power 112 ... temperature element label comparison 118 ... patient 128 ... at first 130,142 ... monitoring 132 ... window 134 ... profile 136 ... gas 140 ... heating wire 144 ... first method 146 ... second method 148 ... current 150 ... fan 152 ... flow 154 ... inductor 200 ... adapter 202 ... indicator — — — — — — ίιμ — ^ < III l · I II I «111 — — — — · (Please read the notes on the back before filling this page) Economic Affairs Intellectual Property Office employees consumer cooperatives print 18 sheets in 1 National Standards (CNS) A4 size scale applicable (210x297 Kimiyoshi)

Claims (1)

46 45 19 A8 B8 C8 D8 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 6. Application for patents l A breathing aid device suitable for delivering humid gas with ideal humidity or ideal temperature to the patient's body, which includes: Humidity device that electrically inputs power and can humidify the gas to a certain humidity before entering the patient's body, the humidity depends on the input power provided to the humidification device for sending the humidified gas from the humidification device to the humidification device The patient's delivery channel device, and a control device containing the following storage instructions: (a) determine parameters related to the flow of the gas through the device: (b) determine at least the electrical power required to enter the humidifier based on the parameters to A humidity or the gas having a temperature substantially the same as the ideal humidity or the ideal temperature is input into the patient; (c) a power substantially the same as a specific power input to the humidifying device is input into the humidifying device. 2. The respiratory assistance device according to item 1 of the patent application scope, further comprising: a channel heating device having an electric input power and connected to the rotary channel device, wherein the gas flowing through the channel device is either direct or indirect The ground is heated by the channel heating device, and the degree of heating depends on the input power input to the channel heating device;-an ambient temperature sensor that provides an external temperature indicator: the instruction (b) further includes a decision based on at least the external temperature indicator Enter the power required by the heating device of the channel to input a certain humidity or gas at the same temperature as the ideal humidity or the gas at the ideal temperature into the patient's body; This paper size applies the Chinese National Standard (CNS) A4 specification ( 210 X 297 mm) ^^ 1-^ 1 m I n ---- ^ equipment • 1 ϋ i I n · 1 1 nt I (please read the note on the back before filling this page) 19 Δ8 B8 C8 ------ D8 6. Scope of Patent Application The directive (C) further includes inputting into the channel heating device substantially the same power as the specific power input into the channel heating device. 3. If the respiratory assistance device according to item 2 of the patent application scope, wherein the humidifying device includes a humidifying chamber suitable for containing a large amount of water and a water heating device, and heating the water to reduce water vapor in the chamber, the gas passes through the The water vapor in the chamber is fished, and the directive further includes: i) powering the water heating device to heat the water to the first condition, ii) continuously monitoring the parameter or indicating the nature of the water heating device. Variable until the variable or the parameter indicates that the water has generally reached the first condition, iii) the parameter is determined at least according to the variable and the external temperature indication 4. As for the respiratory assistance device in the third scope of the patent application, where The power input to the humidifier in the instruction (b) is also determined by the external temperature indication. 5 · If the respiratory assistance equipment in the scope of patent application No. 3, the control device is printed by the consumer cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs. -Order. ≪ Please read the notes on the back before filling in this purchase > The following instructions are stored: (d) Constantly monitor the parameter or variable, and when the parameter or variable changes more than the first 闾When the value, the control device will return the instruction (b); and when the parameter or variable changes greater than the second «value, the control device will return the instruction (a). 6. If the respiratory assistance device in the scope of patent application No. 5, if the change in the parameter or variable shows a decrease in flow rate, the control device returns to the finger This paper size applies the Chinese Standard (CNS) A4 specification < 210 * 297 mm) 20 is printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 6. The scope of the patent application order (b) will result in a short delay; if the change indicates an increase in traffic, the control device returns the instruction (b ) Before causing a considerable delay. 7. For a respiratory assistance device according to item 5 of the patent application, wherein the second threshold value is a rate of change over time according to the parameter or the variable, and when the rate of change exceeds the second threshold value, the control device will Return to this instruction (a) 〇 8. If the respiratory assistance device in the scope of patent application No. 丨 or 2, it further includes a pneumatic hip supply device suitable for supplying the required pressure and flow of gas to the humidification device. 9. For breathing assistance equipment in the scope of patent application item 8, wherein the gas supply device provides an output signal representing the amount of electric power output to the gas supply device, the signal is provided to the control device to determine the humidity Gas flow · 10. If the breathing assistance equipment of item 8 or 9 of the patent application scope, wherein the gas supply device includes a fan driven by a variable speed electric motor 11. If the breathing assistance equipment of item 10 of the patent application scope, The expected flow rate of the damp gas is estimated based on the current generated by the variable speed motor. 12. If the respiratory assistance device according to item 丨 or 2 of the patent application scope, it further includes an airflow sensor ′ to directly measure the estimated flow rate of the wet air hip. 13. If you apply for a respiratory assistive device according to any of the scope of patent application No. 3 to 7, its paper size: National Standard (CNS) A4 (210 X 297 mm) --I ------ J --- ^ installed----- Order II ------- • Line · < Please read the notes on the back before filling out this page) 21 ASB8C8D8 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The scope of patent application further includes: providing a temperature indicator of the water heating device and a wet chamber induction device providing an electric power index generated by the water heating device, wherein the variable indicates the temperature label of the water heating device or the water heating device The resulting power index. 14. The breathing assistance device according to item 13 of the patent application scope, wherein the parameter is defined as the value generated by the water heating device divided by the temperature of the water heating device. 15.-A breathing aid device for humidifying a gas to a desired humidity or a desired temperature, including: a humidifying device capable of moisturizing the gas to a certain humidity, the humidity being dependent on the humidity provided to the humidifying device Input power, and a delivery channel device for sending the moist gas from the humidifying device to the patient, and a control device containing the following storage instructions: (a) determine parameters related to the flow of the gas through the device;. (W Decide at least on the parameter to input the electric * power required by the wetting device to wet the gas to a certain humidity or substantially the same temperature as the ideal * humidity or the ideal temperature: (c) will be substantially the same as entering the The specific power of the humidifying device has the same power input to the humidifying device. 16. —A respiratory assistance device suitable for delivering humid gas with ideal humidity or ideal temperature to the patient's body, which includes: This paper size applies to the Chinese National Standard (CNS ) A4 specifications < 210 * 297 male «) — — — — — · IIIIIII * 111 — — — — (Guess read the note on the back first Please fill in this page again) 22 4 6 45 A8 BS C8 D8 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 6. The scope of patent application for the delivery channel device for sending the humid gas from the wet device to the patient, and -A channel heating device with electric input power and connected to the transmission channel device, wherein the gas flowing through the conveying channel device is heated directly or indirectly by the channel heating device, and the degree of heating depends on the input of the channel heating device Input power; providing the input power to the wetting device and the control device of the channel heating device, and providing a control output showing whether the channel heating device is correctly connected to the control device and operating according to predetermined restrictions; and The connection device of the control device and the channel heating device is electrically connected and an indicator is connected to the control output, wherein when the channel heating device is correctly connected to the control device and operates according to predetermined restrictions, the control device will Power is supplied to the indicator. 23 i paper button correction_ '豕 Square (CNS) A4 size (210 X 297 mm)