CN111420201A - Respirator and control method of respirator - Google Patents
Respirator and control method of respirator Download PDFInfo
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- CN111420201A CN111420201A CN202010312135.7A CN202010312135A CN111420201A CN 111420201 A CN111420201 A CN 111420201A CN 202010312135 A CN202010312135 A CN 202010312135A CN 111420201 A CN111420201 A CN 111420201A
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- 230000003434 inspiratory effect Effects 0.000 claims description 7
- 210000004712 air sac Anatomy 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
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- 210000003437 trachea Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0057—Pumps therefor
- A61M16/0075—Bellows-type
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2230/00—Measuring parameters of the user
- A61M2230/40—Respiratory characteristics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2230/00—Measuring parameters of the user
- A61M2230/40—Respiratory characteristics
- A61M2230/42—Rate
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The embodiment of the invention discloses a breathing machine and a control method thereof, wherein the breathing machine comprises: a mask provided with an air pipe; the air suction air bag comprises a first one-way air inlet and a first one-way air outlet connected with the air pipe; the expiration air bag comprises a second one-way air outlet and a second one-way air inlet connected with the air pipe; the extrusion mechanism comprises a fixed part and a moving part which are arranged on the inspiration air bag and the expiration air bag at the same time, and the fixed part and the moving part are arranged on the inspiration air bag and the expiration air bag oppositely; the controller controls the driving mechanism to perform push-pull movement on the moving part based on a preset time sequence, and enables the air suction air bag to input target gas to the mask and enables the air exhalation air bag to discharge waste gas in the air bag through the second one-way air outlet through push movement; the air bag is pulled to suck the target gas into the self bag through the first one-way air inlet and the air bag is made to suck the waste gas in the mask into the self bag. The problem of prior art's breathing machine have the structure comparatively complicated at least is solved.
Description
Technical Field
The embodiment of the invention relates to the field of medical equipment, in particular to a breathing machine and a control method of the breathing machine.
Background
The breathing machine can help the human physiology to change the breathing and increase the lung ventilation capacity, thereby effectively improving the breathing function. The existing breathing machine mainly comprises a medical breathing machine and a household breathing machine, and the medical breathing machine is mainly used in the fields of operation, first aid and treatment of respiratory system diseases; the household respirator is mainly used for the household treatment of the mild patients. However, any respirator has a complex structure and a high price, so that many hospitals in families or poor areas cannot afford the respirator.
In summary, the prior art breathing machine has at least the problem of complicated structure.
Disclosure of Invention
The embodiment of the invention provides a respirator and a control method of the respirator, and solves the technical problem that the existing respirator is complex in structure.
In a first aspect, an embodiment of the present invention provides a ventilator, including:
a mask provided with an air pipe;
the air suction air bag comprises a first one-way air inlet and a first one-way air outlet connected with the air pipe;
the expiration air bag comprises a second one-way air outlet and a second one-way air inlet connected with the air pipe;
the pressing mechanism comprises fixing pieces arranged on the inspiration air bag and the expiration air bag and moving pieces arranged on the inspiration air bag and the expiration air bag, and the fixing pieces and the moving pieces are arranged on the inspiration air bag and the expiration air bag in a corresponding mode;
a driving mechanism for pushing the moving member toward the fixed member or pulling the moving member away from the fixed member;
the controller is used for controlling the driving mechanism to perform push-pull movement on the moving part based on a preset time sequence, and compressing the volumes of the inspiration air bag and the expiration air bag through push movement, so that the inspiration air bag inputs target gas to the mask and the expiration air bag discharges waste gas in the self bag through the second one-way air outlet; the air pressure in the inspiration air bag and the expiration air bag is reduced through pulling movement, so that the inspiration air bag sucks target gas into the self bag through the first one-way air inlet and the expiration air bag sucks waste gas in the mask into the self bag.
In a second aspect, an embodiment of the present invention further provides a control method of a ventilator, which is applied to the ventilator according to any embodiment, and includes:
controlling the driving mechanism to perform push-pull movement on the moving part based on a preset time sequence, and compressing the volumes of the inspiration air bag and the expiration air bag through push movement, so that the inspiration air bag inputs target gas to the mask and the expiration air bag discharges waste gas in the self bag through the second one-way air outlet;
the air pressure in the inspiration air bag and the expiration air bag is reduced through pulling movement, so that the inspiration air bag sucks target gas into the self bag through the first one-way air inlet and the expiration air bag sucks waste gas in the mask into the self bag.
According to the technical scheme of the breathing machine provided by the embodiment of the invention, the air pipe of the face mask is connected with the first one-way air outlet of the air suction air bag and the second one-way air inlet of the air expiration air bag, and the fixing piece and the moving piece are arranged on the air suction air bag and the air expiration air bag in a corresponding mode; when the driving mechanism pushes the moving part to the fixing part, the driving mechanism can compress the inspiration air bag and the expiration air bag, so that the inspiration air bag inputs target gas to the mask and the expiration air bag discharges waste gas in the self bag through the second one-way air outlet; and when the moving part is pulled away from the fixed part, the air pressure in the inspiration air bag and the expiration air bag is reduced, so that the inspiration air bag sucks the target gas into the self bag through the first one-way air inlet and the expiration air bag sucks the waste gas in the mask into the self bag. The structure of the breathing machine is greatly simplified, the control difficulty of the breathing machine is reduced, and therefore the manufacturing cost of the breathing machine is reduced, and the reduction of the manufacturing cost of the breathing machine is beneficial to expanding the range of the using objects of the breathing machine.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a ventilator according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a ventilator without an installed airbag according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of a ventilator according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment of the invention provides a breathing machine, as shown in fig. 1 and fig. 2, the breathing machine comprises a face mask 1, an inspiration air bag 2, an expiration air bag 3, a squeezing mechanism, a driving mechanism and a controller, wherein the face mask 1 is provided with an air pipe 11; the air suction air bag 2 comprises a first one-way air inlet 21 and a first one-way air outlet 22 connected with the air pipe 11; the expiratory air sac 3 comprises a second one-way air outlet 32 and a second one-way air inlet 31 connected with the air pipe 11; the pressing mechanism comprises fixing pieces 41 arranged on the inspiration airbag 2 and the expiration airbag 3 and moving pieces 42 arranged on the inspiration airbag 2 and the expiration airbag 3, and the fixing pieces 41 and the moving pieces 42 are arranged on the inspiration airbag 2 and the expiration airbag 3 in a corresponding mode; the driving mechanism is used for pushing the moving member 42 to the fixed member 41 or pulling the moving member 42 away from the fixed member 41; the controller is used for controlling the driving mechanism to perform push-pull movement on the moving part 42 based on a preset time sequence, and compressing the volumes of the inspiration air bag 2 and the expiration air bag 3 through push movement, so that the inspiration air bag 2 inputs target gas to the mask 1 and the expiration air bag 3 discharges waste gas in the self air bag through the second one-way air outlet 32; the inhaling air bag 2 draws the target gas into its own bag through the first one-way gas inlet 21 and the exhaling air bag 3 draws the exhaust gas in the mask 1 into its own bag by a pulling motion.
The mask is an existing mask, and the specific structure of the mask and the length of the trachea on the mask are not specifically limited in the embodiment.
The first one-way air outlet 22 of the air suction airbag 2 is used for inputting target gas to the mask 1, and the opening and closing state of the first one-way air outlet is controlled by the pressure difference between the air pressure in the air suction airbag 2 and the air pressure in the mask 1. When the pressure difference reaches a predetermined pressure value, the first one-way outlet 22 is automatically opened. The first one-way air inlet 21 of the air-breathing bag 2 is used for obtaining target gas from the outside, the opening and closing state of the first one-way air inlet 21 is controlled by the air pressure difference between the air pressure in the air-breathing bag 2 and the environment where the first one-way air inlet 21 is located, and when the air pressure difference reaches a preset pressure value, the first one-way air inlet 21 is automatically opened. It will be appreciated that if the first one-way air inlet 21 is at atmosphere, then the air pressure difference is the difference between the air pressure in the inhaling air bag 2 and atmospheric pressure; if the first one-way air inlet 21 is connected to an oxygen delivery canister, the air pressure difference is the difference between the air pressure in the inspiratory air bag and the air pressure in the air delivery tube connected to the oxygen delivery canister.
The second one-way air inlet 31 of the expiratory air bag 3 is used for sucking the waste gas in the face mask 1 into the self-bag, and the opening and closing state of the second one-way air inlet is controlled by the pressure difference between the air pressure in the expiratory air bag 3 and the air pressure in the face mask 1. When the pressure difference reaches a preset pressure value, the second one-way air inlet 31 is automatically opened. The second one-way air outlet 32 of the expiration air bag 3 is used for discharging the waste gas in the self-bag, the opening and closing state of the second one-way air outlet 32 is controlled by the air pressure difference between the air pressure in the expiration air bag 3 and the environment where the second one-way air outlet 32 is located, and when the air pressure difference reaches a preset pressure value, the second one-way air outlet 32 is automatically opened. It will be appreciated that the second one-way vent 32 is normally at atmosphere, and thus the pressure differential is the difference between the pressure within the expiratory air-bag and atmospheric pressure.
Wherein, the first one-way air inlet 21 and the first one-way air outlet 22 of the air suction air bag 2 are preferably arranged oppositely, so as to improve the air suction efficiency of the air suction air bag 2; the second one-way air inlet 31 and the second one-way air outlet 32 of the expiratory air bag 3 are preferably oppositely arranged to improve the expiratory efficiency of the expiratory air bag. Of course, the first one-way air inlet 21 and the first one-way air outlet 22 of the air-breathing bag 2 can be arranged in other ways, and similarly, the second one-way air inlet 31 and the second one-way air outlet 32 of the air-breathing bag 3 can be arranged in other ways.
The shape of the inspiration balloon and the expiration balloon is preferably, but not limited to, olive shape, and may be spherical, pear shape, column shape, etc. This embodiment is described by taking the example that both are olive-shaped. A first one-way air inlet 21 and a first one-way air outlet 22 of the air suction air bag 2 are respectively arranged at two tips of the olive-shaped air suction air bag 2, and the first one-way air outlet 22 is connected with the face mask 1; the second one-way air inlet 31 and the second one-way air outlet 32 of the expiratory air bag 3 are respectively arranged at two tips of the olive-shaped expiratory air bag 3, and the second one-way air inlet 31 is connected with the face mask 1. Referring to fig. 1, an olive-shaped inspiration balloon 2 and an olive-shaped expiration balloon 3 are connected with an air tube 11 of a mask 1 through a three-way tube.
Wherein, the fixing member 41 preferably comprises two first ring structures sleeved on the end of the proximal face shield 1 of the inspiration air bag 2 and the end of the proximal face shield 1 of the expiration air bag 3 for fixing the inspiration air bag 2 and the expiration air bag 3. The moving element 42 comprises two second ring structures respectively sleeved on the end of the far mask 1 of the inspiration airbag 2 and the end of the far mask 1 of the expiration airbag 3. Because the radius of the first annular structure and the radius of the second annular structure are both smaller than the maximum radius of the inspiration air bag and the maximum radius of the expiration air bag. When the moving member 42 moves towards the fixed member 41, the inhaling airbag 2 and the exhaling airbag 3 are pressed, so that the volumes of the two are compressed, the air pressure in the airbags rises, the valve of the first one-way air outlet 22 of the inhaling airbag 2 is opened, the target gas in the airbags flows into the mask 1, the valve of the second one-way air outlet 32 of the exhaling airbag 3 is also opened, and the waste gas in the airbags is exhausted; when the moving member 42 moves away from the fixed member 41, the air pressure inside the inhaling airbag 2 and the exhaling airbag 3 is rapidly reduced, the first one-way air inlet 22 and the second one-way air inlet 31 are rapidly closed, and the first one-way air inlet 21 and the second one-way air outlet 32 are rapidly opened, so that the inhaling airbag 2 inhales the target gas through the first one-way air inlet 21, and the exhaling airbag 3 inhales the waste gas in the mask 1 into the self-bag through the second one-way air inlet 31.
The driving mechanism of this embodiment is preferably, but not limited to, a stepping motor, as long as the driving mechanism can drive the moving member to perform a pushing and pulling action.
In some embodiments, the mover 42 further includes a second connecting member 421 connecting the two loop structures, as shown in fig. 2. Of course, the second connecting member 421 can also be a rigid strip-shaped structure, a plate-shaped structure, etc., as long as the second connecting member 421 can drive the two second ring-shaped structures connected thereto to rotate when moving. It will be appreciated that when the driving mechanism is a stepper motor, such as a nut screw stepper motor, the second connector 421 is disposed on the screw 53 of the stepper motor. The motor 51 drives the moving member 42 on the lead screw 53 to move linearly by driving the nut 52 to rotate.
In some embodiments, the fixing member 41 further comprises a first connecting member 411 connecting the two first loop structures, as shown in fig. 2. It will be appreciated that the first connecting member 411 may be a rigid strip-shaped structure, a plate-shaped structure, etc., as long as the position of the two first ring-shaped structures to which it is connected is unchanged while ensuring that the position of the first connecting member is unchanged. In order to improve the structural compactness of the respirator, when the driving mechanism is a stepping motor, the movable end of a lead screw of the stepping motor is fixed on the first connecting piece through a bearing.
Further, the breathing machine further comprises a support mechanism 6, the support mechanism 6 is preferably, but not limited to, U-shaped, and two support legs thereof are respectively used for supporting the first connecting member 411 and the lead screw 53. It will be appreciated that the support feet, when connected to the lead screw, are connected to bearings provided on the lead screw.
In order to maintain the spatial positions of the fixed member and the moving member, and thus the spatial positions of the inhalation airbag and the exhalation airbag, the ventilator of this embodiment is further provided with a slide rail 61, as shown in fig. 2, one end of the slide rail 61 is fixed on the first connecting member 411 of the fixed member 41, and the other end is provided on the support leg of the support mechanism connected to the lead screw, so that the moving member 42 does not rotate when the lead screw 53 moves.
The preset time sequence is determined by the controller according to the breathing parameters input by the user, so that the breathing machine further comprises an input device, and the user can input the breathing parameters for adjusting the preset time sequence. Wherein the breathing parameters include at least one or more of tidal volume information, respiratory rate information, inspiratory flow rate information, and an inspiratory-expiratory ratio. The input device may be a gear button or a touch pad, etc.
When detecting the tidal volume information input by the user, the controller determines the maximum running distance of the moving part 42 according to the received tidal volume information, and controls the driving mechanism to drive the moving part 42 to run the maximum running distance in the primary deformation process of the inspiration airbag 2 and the expiration airbag 3, so that the target gas volume input to the face mask 1 corresponds to the tidal volume in the process of converting the corresponding maximum expansion state of the inspiration airbag 2 to the maximum compression state; and the amount of exhaust gas sucked out of the mask corresponds to the tidal volume information in the process of changing the expiratory air bag 3 from the corresponding maximum compression state to the maximum expansion state.
In some embodiments, the controller determines the reciprocating frequency of the moving member based on the received frequency information when the respiratory frequency information is detected, thereby determining a single reciprocation time required for a single reciprocation of the moving member 42 to update the aforementioned preset timing, and then controls the driving mechanism to complete the movement of pushing the moving member toward the fixed member 41 and the movement of pulling the moving member 42 away from the fixed member 41 using the single reciprocation time. In some embodiments, the controller stores in advance a proportional relationship between the time taken for the driving mechanism to complete pushing the moving element 42 toward the fixed element 41, the time taken for the driving mechanism to complete pulling the moving element 42 away from the fixed element 41, and the time interval therebetween, determines the time of the moving element in each stage according to the proportional relationship and the single reciprocating time, and then controls the driving mechanism to drive the moving element to make corresponding movement according to the time of each stage.
In some embodiments, the controller determines the moving speed of the moving member according to the received inhalation flow rate information when the inhalation flow rate information is detected, and drives the moving member to move towards the fixed member at the moving speed through the driving mechanism.
In some embodiments, the controller determines a first time taken for the driving mechanism to push the moving member 42 toward the fixed member 41 and a second time taken for the moving member 42 to pull away from the fixed member 41 based on the received inhalation-exhalation ratio when the inhalation-exhalation ratio is detected, and causes the driving mechanism to complete pushing the moving member 42 toward the fixed member 41 using the first time and causes the driving mechanism to complete pulling the moving member 42 away from the fixed member 41 using the second time.
According to the technical scheme of the breathing machine provided by the embodiment of the invention, the air pipe of the face mask is connected with the first one-way air outlet of the air suction air bag and the second one-way air inlet of the air expiration air bag, and the fixing piece and the moving piece are arranged on the air suction air bag and the air expiration air bag in a corresponding mode; when the driving mechanism pushes the moving part to the fixing part, the driving mechanism can compress the inspiration air bag and the expiration air bag, so that the inspiration air bag inputs target gas to the mask and the expiration air bag discharges waste gas in the self bag through the second one-way air outlet; and when the moving part is pulled away from the fixed part, the air pressure in the inspiration air bag and the expiration air bag is reduced, so that the inspiration air bag sucks the target gas into the self bag through the first one-way air inlet and the expiration air bag sucks the waste gas in the mask into the self bag. The structure of the breathing machine is greatly simplified, the control difficulty of the breathing machine is reduced, and therefore the manufacturing cost of the breathing machine is reduced, and the reduction of the manufacturing cost of the breathing machine is beneficial to expanding the range of the using objects of the breathing machine.
Example two
Fig. 3 is a flowchart of a control method of a ventilator according to a second embodiment of the present invention. The technical solution of this embodiment is suitable for controlling the breathing machine described in the foregoing embodiments. The method may be executed by the controller in the foregoing embodiment, and in conjunction with fig. 1, fig. 2 and fig. 3, the method specifically includes the following steps:
and S1, controlling the driving mechanism to perform push-pull movement on the moving part based on the preset time sequence, and compressing the volumes of the inspiration air bag and the expiration air bag through the push movement, so that the inspiration air bag inputs target gas to the mask and the expiration air bag discharges waste gas in the bag of the expiration air bag through the second one-way air outlet.
Wherein the preset time sequence is determined by the controller according to the breathing parameters input by the user. Wherein the breathing parameters include at least one or more of tidal volume information, respiratory rate information, inspiratory flow rate information, and an inspiratory-expiratory ratio.
The pushing operation refers to pushing the moving part to the fixing part by a driving mechanism, so as to compress the volumes of the inhalation air bag 2 and the exhalation air bag 3 through the reduction of the distance between the moving part 42 and the fixing part 1, and increase the air pressure in the inhalation air bag 2 and the exhalation air bag 3, so that the inhalation air bag 2 inputs the target gas to the mask 1, and the exhalation air bag 3 discharges the waste gas in the self-bag through the second one-way air outlet 32.
And S2, reducing the air pressure in the inspiration air bag and the expiration air bag through pulling movement, so that the inspiration air bag sucks the target gas into the self bag through the first one-way air inlet and the expiration air bag sucks the waste gas in the mask into the self bag.
The pulling operation refers to the movement of pulling the moving part 42 away from the fixing part 41 by the driving mechanism, and the air pressure in the inhaling airbag 2 and the exhaling airbag 3 is reduced by increasing the distance between the moving part 42 and the fixing part 41, so that the inhaling airbag 2 sucks the target gas into the self-bag through the first one-way gas inlet 21 and the exhaling airbag 3 sucks the waste gas in the mask 1 into the self-bag through the second one-way gas inlet 31.
When detecting the tidal volume information input by the user, the controller determines the maximum running distance of the moving part according to the received tidal volume information, and controls the driving mechanism to drive the moving part 42 to run the maximum running distance in the primary deformation process of the inspiration airbag and the expiration airbag, so that the target gas volume input to the face mask 1 corresponds to the tidal volume in the process of converting the corresponding maximum expansion state of the inspiration airbag 2 to the maximum compression state; and during the process of changing the expiratory air bag from the corresponding maximum compression state to the maximum expansion state, the exhaust gas amount sucked out of the mask corresponds to the tidal volume information.
When the controller detects the inspiration flow rate information, the controller determines the movement speed of the moving part 42 according to the received inspiration flow rate information, and drives the moving part 42 to move towards the fixed part 41 at the movement speed through the driving mechanism.
In some embodiments, the controller determines the reciprocating frequency of the moving member based on the received frequency information when the respiratory frequency information is detected, thereby determining a single reciprocation time required for a single reciprocation of the moving member 42 to update the aforementioned preset timing, and then controls the driving mechanism to complete the movement of pushing the moving member 42 toward the fixed member 41 and the movement of pulling the moving member 42 away from the fixed member 41 using the single reciprocation time. In some embodiments, the controller stores in advance a proportional relationship between the time taken for the driving mechanism to complete pushing the moving element 42 toward the fixed element 41, the time taken for the driving mechanism to complete pulling the moving element 42 away from the fixed element 41, and the time interval therebetween, determines the time of the moving element 42 in each stage according to the proportional relationship and the single reciprocating time, and then controls the driving mechanism to drive the moving element 42 to move correspondingly according to the time of each stage.
In some embodiments, the controller determines a first time taken for the driving mechanism to push the moving member 42 toward the fixed member 41 and a second time taken for the moving member 42 to pull away from the fixed member 41 based on the received inhalation-exhalation ratio to update the aforementioned preset timing when the inhalation-exhalation ratio is detected, and causes the driving mechanism to complete pushing the moving member 42 toward the fixed member 41 using the first time and causes the driving mechanism to complete pulling the moving member 42 away from the fixed member 41 using the second time.
According to the technical scheme of the control method of the breathing machine, the moving part is pushed to the fixing part by controlling the driving mechanism to compress the air suction bag and the air expiration bag, so that the air suction bag inputs target gas to the face mask and the air expiration bag exhausts waste gas in the bag through the second one-way air outlet; and the moving part is pulled away from the fixing part by controlling the driving mechanism to reduce the air pressure in the inspiration air bag and the expiration air bag, so that the inspiration air bag sucks target gas into the self bag through the first one-way air inlet and the expiration air bag sucks waste gas in the mask into the self bag. The structure of the breathing machine is greatly simplified, the control difficulty of the breathing machine is reduced, and therefore the manufacturing cost of the breathing machine is reduced, and the reduction of the manufacturing cost of the breathing machine is beneficial to expanding the range of the using objects of the breathing machine.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A ventilator, comprising:
a mask provided with an air pipe;
the air suction air bag comprises a first one-way air inlet and a first one-way air outlet connected with the air pipe;
the expiration air bag comprises a second one-way air outlet and a second one-way air inlet connected with the air pipe;
the pressing mechanism comprises fixing pieces arranged on the inspiration air bag and the expiration air bag and moving pieces arranged on the inspiration air bag and the expiration air bag, and the fixing pieces and the moving pieces are arranged on the inspiration air bag and the expiration air bag in a corresponding mode;
a driving mechanism for pushing the moving member toward the fixed member or pulling the moving member away from the fixed member;
the controller is used for controlling the driving mechanism to perform push-pull movement on the moving part based on a preset time sequence, and compressing the volumes of the inspiration air bag and the expiration air bag through push movement, so that the inspiration air bag inputs target gas to the mask and the expiration air bag discharges waste gas in the self bag through the second one-way air outlet; the air pressure in the inspiration air bag and the expiration air bag is reduced through pulling movement, so that the inspiration air bag sucks target gas into the self bag through the first one-way air inlet and the expiration air bag sucks waste gas in the mask into the self bag.
2. The ventilator of claim 1, wherein said inspiratory air bladder and said expiratory air bladder are each olive-shaped;
the fixing piece comprises two first annular structures which are respectively sleeved at the near mask end of the inspiration air bag and the near mask end of the expiration air bag, and the moving piece comprises two second annular structures which are respectively sleeved at the far mask end of the inspiration air bag and the far mask end of the expiration air bag;
the radii of the first and second annular structures are each less than the largest radius of the inspiratory balloon and the largest radius of the expiratory balloon.
3. The respirator of claim 2, wherein the first unidirectional gas inlet and the first unidirectional gas inlet are respectively disposed at two tips of the inspiratory air bag, and the second unidirectional gas inlet and the second unidirectional gas outlet are respectively disposed at two tips of the expiratory air bag.
4. The respirator of claim 1, wherein the driving mechanism is a step motor, and the moving member comprises a second connecting member connecting two second annular structures, the second connecting member is sleeved on a lead screw of the step motor, and is configured to move along the lead screw under the driving of the step motor, and drive the inhaling airbag and the exhaling airbag to move while moving along the lead screw.
5. The ventilator of claim 4 wherein the mount further comprises a first connector connecting the two first loop structures, and correspondingly, the ventilator further comprises a support mechanism;
the supporting mechanism is U-shaped, and the two supporting legs are respectively used for supporting the first connecting piece and the lead screw.
6. The ventilator of claim 1, wherein the controller is configured to determine a maximum travel distance of the moving member according to the received tidal volume information, and to control the driving mechanism to drive the moving member to travel the maximum travel distance during one deformation of the inhalation balloon and the exhalation balloon.
7. The ventilator of claim 6, wherein the controller is further configured to determine a reciprocating frequency of the moving member according to the received breathing frequency information, and control the driving mechanism to complete pushing the moving member toward the fixed member and pulling the moving member away from the fixed member using a time corresponding to the reciprocating frequency.
8. The ventilator of claim 7, wherein the controller is further configured to determine a moving speed of the moving member according to the received inspiratory flow rate information, and to drive the moving member to move toward the fixed member at the moving speed through the driving mechanism.
9. The ventilator of any one of claims 1-8, wherein the controller is further configured to determine a first time for the driving mechanism to push the movable member toward the fixed member and a second time for the driving mechanism to pull the movable member away from the fixed member based on the received inhalation-exhalation ratio, and to cause the driving mechanism to use the first time to complete the movement of the movable member toward the fixed member and the second time to complete the movement of the movable member away from the fixed member.
10. A control method for a ventilator, applied to the ventilator according to any one of claims 1 to 9, comprising:
controlling the driving mechanism to perform push-pull movement on the moving part based on a preset time sequence, and compressing the volumes of the inspiration air bag and the expiration air bag through push movement, so that the inspiration air bag inputs target gas to the mask and the expiration air bag discharges waste gas in the self bag through the second one-way air outlet;
the air pressure in the inspiration air bag and the expiration air bag is reduced through pulling movement, so that the inspiration air bag sucks target gas into the self bag through the first one-way air inlet and the expiration air bag sucks waste gas in the mask into the self bag.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2155889Y (en) * | 1993-03-31 | 1994-02-16 | 崔勤 | Portable emergency breath machine |
| US20050284472A1 (en) * | 2004-06-28 | 2005-12-29 | Jimmy Lin | Auto-pumping unit for bag-valve-mask resuscitator |
| CN201529248U (en) * | 2009-11-18 | 2010-07-21 | 中国人民解放军第三军医大学第一附属医院 | Automatic press respirator |
| CN103495248A (en) * | 2013-10-09 | 2014-01-08 | 河南科技大学第一附属医院 | Electric extrusion device of breathing bag |
| CN204972587U (en) * | 2015-09-23 | 2016-01-20 | 吴展陵 | Internal medicine is clinical uses urgent respiratory device |
| CN105771049A (en) * | 2016-05-25 | 2016-07-20 | 戴如春 | Automatic respirator |
| CN106964039A (en) * | 2017-04-08 | 2017-07-21 | 帅梦琦 | A kind of medical breathing machine |
| CN208355885U (en) * | 2017-07-21 | 2019-01-11 | 周口市妇幼保健院（周口市儿童医院） | Novel respirator |
| CN208582821U (en) * | 2017-06-24 | 2019-03-08 | 赵春梅 | A kind of portable Cardiological ventilator |
| CN109767679A (en) * | 2019-01-14 | 2019-05-17 | 厦门大学 | A kind of breathing apparatus |
-
2020
- 2020-04-20 CN CN202010312135.7A patent/CN111420201A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2155889Y (en) * | 1993-03-31 | 1994-02-16 | 崔勤 | Portable emergency breath machine |
| US20050284472A1 (en) * | 2004-06-28 | 2005-12-29 | Jimmy Lin | Auto-pumping unit for bag-valve-mask resuscitator |
| CN201529248U (en) * | 2009-11-18 | 2010-07-21 | 中国人民解放军第三军医大学第一附属医院 | Automatic press respirator |
| CN103495248A (en) * | 2013-10-09 | 2014-01-08 | 河南科技大学第一附属医院 | Electric extrusion device of breathing bag |
| CN204972587U (en) * | 2015-09-23 | 2016-01-20 | 吴展陵 | Internal medicine is clinical uses urgent respiratory device |
| CN105771049A (en) * | 2016-05-25 | 2016-07-20 | 戴如春 | Automatic respirator |
| CN106964039A (en) * | 2017-04-08 | 2017-07-21 | 帅梦琦 | A kind of medical breathing machine |
| CN208582821U (en) * | 2017-06-24 | 2019-03-08 | 赵春梅 | A kind of portable Cardiological ventilator |
| CN208355885U (en) * | 2017-07-21 | 2019-01-11 | 周口市妇幼保健院（周口市儿童医院） | Novel respirator |
| CN109767679A (en) * | 2019-01-14 | 2019-05-17 | 厦门大学 | A kind of breathing apparatus |
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Application publication date: 20200717 |