CN107126610A - A kind of intelligent breathing machine - Google Patents

A kind of intelligent breathing machine Download PDF

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Publication number
CN107126610A
CN107126610A CN201710427672.4A CN201710427672A CN107126610A CN 107126610 A CN107126610 A CN 107126610A CN 201710427672 A CN201710427672 A CN 201710427672A CN 107126610 A CN107126610 A CN 107126610A
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CN
China
Prior art keywords
motor
ecu
gear
variable quantity
air
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Granted
Application number
CN201710427672.4A
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Chinese (zh)
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CN107126610B (en
Inventor
华辉
陈静静
孙文海
董安兵
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Affiliated Hospital of University of Qingdao
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Affiliated Hospital of University of Qingdao
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Priority to CN201710427672.4A priority Critical patent/CN107126610B/en
Publication of CN107126610A publication Critical patent/CN107126610A/en
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Classifications

    • 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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/0816—Measuring devices for examining respiratory frequency
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
    • A61B5/1072—Measuring physical dimensions, e.g. size of the entire body or parts thereof measuring distances on the body, e.g. measuring length, height or thickness
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • 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

Abstract

A kind of intelligent breathing machine, including control unit ECU, motor, described control unit are used to control the rotating speed of the motor to control the capacity of lung ventilator, in addition to air bleeding valve, the pressure at expulsion of the blast pipe for controlling lung ventilator；Also include human body variable quantity measuring unit, the human body variable quantity measuring unit includes abdominal circumference variable quantity and/or bust variable quantity measuring unit, it is used to receive the customer parameter of ECU collections and returns to the ECU after being calculated for the opening and closing amount of the rotating speed according to abdominal circumference variable quantity and/or the state modulator motor of bust variable quantity and exhaust air bleeding valve, in addition to cloud processing server.The lung ventilator simple structure of the present invention, operation are simple, and the physiological data that patient can be monitored constantly makes corresponding pressure adjustment, can also realize direction of rotation of the continuous malleation output of air without changing motor, eliminate the complex control system of motor.

Description

A kind of intelligent breathing machine
Technical field
The present invention relates to a kind of breathing field, more particularly, to a kind of intelligent breathing machine.
Background technology
Lung ventilator is usually used in patient's assisted respiartion, and conventional lung ventilator has hand, and electrodynamic type, existing lung ventilator is usual It is single cylinder type, air pressure fluctuation is larger.Existing lung ventilator has several classes, and one of which is referred to as double level respirators (BiPAP) it is, a kind of most comprehensive double air passage pressure-cycled respirator of function, higher pressure of inspiration(Pi) and relatively low expiration can be set respectively Pressure, the lung ventilator provides higher pressure of inspiration(Pi) and relatively low breath pressure is provided to keep airway open, during expiration, to ensure to suffer from Person's breathing is smooth.Machine is synchronous with breathing holding, and double level respirators are adapted to all kinds of sleep apnea syndrome patients and institute There are the patient that need to use noninvasive ventilation treatment, especially some critical illnesses.
Double level respirators require to provide the malleation of contact, and current lung ventilator is typically to be controlled using blower fan, Flow is caused not control accurately due to rotating blower fan.The frequency of breathing, flow control are all the difficult points controlled simultaneously. The generally operation of existing pair of level respirator is not accurate enough, and system architecture is complicated, uses cumbersome.
The content of the invention
In order to solve problems of the prior art, present invention thus provides a kind of intelligent breathing machine, including control Unit ECU, motor, described control unit is used to control the rotating speed of the motor to control the capacity of lung ventilator, in addition to Air bleeding valve, the pressure at expulsion of the blast pipe for controlling lung ventilator；Also include human body variable quantity measuring unit, the human body change Phasor measurement unit include abdominal circumference variable quantity measuring unit and/or bust variable quantity measuring unit, for according to abdominal circumference variable quantity and/ Or the rotating speed and the opening and closing parameter of air bleeding valve of the state modulator motor of bust variable quantity, in addition to cloud processing server is for receiving Customer parameter that ECU is collected simultaneously returns to the ECU after being calculated.
Further, the human body variable quantity measuring unit includes elastic shroud and stress monitoring unit, the elasticity Shroud is used for the belly or chest for being enclosed on user, and the stress monitoring unit is used for the stress variation situation for monitoring elastic shroud And the stress duration, so as to obtain the respiratory amplitude and repiratory frequency of user, the stress monitoring unit also includes radio communication Module, for being communicated with the ECU.
Further, stress variation situation and stress duration of the stress monitoring unit according to the elastic shroud of monitoring Obtain inspiratory duration T1, the permanent balance time T2 of breathing process in special time, expiration duration T 3, expiration The permanent balance time T4 of process is simultaneously sent to the ECU, while also recording the stress crest value in inspiratory duration T1 N1, and crest value N1 is sent to ECU.
Further, the ECU presets the rotating speed of the motor to control the first of lung ventilator according to the customer parameter Beginning extraction flow；The ECU, which is obtained after the air-breathing stress crest value N1 in the special time is added up in the special time, to be inhaled The average crest value Nk of gas stress, and the average crest value Nk is compared with predetermined value Ny, the ECU are according to Nk and Ny comparison Rotating speed of the output control motor in next special time.
Further, the ECU presets the opening and closing degree of air bleeding valve according to the customer parameter and held time, so that The initial exhaust pressure and pressure of lung ventilator is controlled to hold time；The ECU calculates T1 and T2 sums in the special time and existed Average value Tp1 in the special time, the malleation for determining breathing process in next special time according to average value Tp1 is kept Time；Average value Tp2 of the T3 and T4 sums in the special time in the special time is calculated simultaneously, according to the average value Tp2 determines the malleation retention time of next special time exhalation process.
Further, the lung ventilator includes two compressor units, and described two compressor units are set up in parallel；It is described Each of two compressor units include cylinder and in the cylinder free movement piston, in addition to the piston The piston rod being fixedly connected, in addition to intake valve and air bleeding valve, when descent of piston, intake valve is opened and exhaust valve closure, when During piston stroking upward, intake valve is closed and air bleeding valve is opened；Also include gear unit, the gear unit includes being arranged on described two Motor between the piston rod of individual compressor unit, the motor is used to drive driving wheel to rotate, on the driving wheel and worm screw The perpendicular contact in spiral line part, constitute endless screw transmission agent, when motor is rotated, drive worm screw rotation；The worm screw Two ends are each configured with a gear, and one of gear is used to set respectively with the piston rod both sides of one of compressor unit The bar shaped tooth put is in contact, and another gear is used for the bar shaped tooth set respectively with the piston rod both sides of another compressor unit It is in contact；Each gear includes base circle portion and toothed portion, and periphery of the toothed portion along the gear is continuous into 180 degree Distribution；There is each gear centre bore to be used to be fixedly connected with worm screw；Each piston rod include base shaft part and from The vertical two bar shaped teeth stretched out towards motor drive direction in the both sides of the base shaft part, two bar shaped teeth are arranged opposite.
Further, the phase difference between the gear of described two compressor units is 180 degree, described two compressors Phase difference between the piston of unit is 180 degree.
Further, the lung ventilator also includes air distribution system, and the air distribution system includes air inlet pipe and inlet chamber, entered There is air cavity intake valve of the air intake branch respectively with each compressor to connect；Also include blast pipe, and discharge chamber, discharge chamber point Not Ju You branch pipe connected with the air bleeding valve of each compressor.
Further, it is also configured with that there is damper piston inside bounce cylinder, the bounce cylinder on the blast pipe, The damper piston is connected to the bottom of bounce cylinder by spring, and air inlet is passed through between the bounce cylinder and the blast pipe Mouth connection, so as to form sealed cushion chamber between the air inlet and damper piston.
Further, the air bleeding valve is arranged on the blast pipe and positioned at the rear of the bounce cylinder
The intelligent breathing machine simple structure of the present invention, operation are simple, and the physiological data that patient can be monitored constantly makes phase The pressure adjustment answered can effectively treat breathing syndrome, it is possible to achieve rotation of the continuous output of air without changing motor Turn direction, eliminating the complex control system of motor, there is provided the simple manipulation of a kind of pair of level respirator.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, it can be good at understanding that the structure of the present invention, principle, work are special with reference to following description Put and advantage, but accompanying drawing described herein as is used for that the present invention is explained further, and accompanying schematic figure is intended merely to preferably right The present invention is illustrated, and improper restriction is not constituted to the present invention, wherein：
Fig. 1 is the system composition schematic diagram of the intelligent breathing machine of the present invention；
Fig. 2 is the structural representation of the intelligent breathing machine air bleeding valve of the present invention；
Fig. 3 is the structural representation of the human body variable quantity measuring unit of the intelligent breathing machine of the present invention；
Fig. 4 is the human body respiration stress data figure for the intelligent breathing machine invented；
Fig. 5 is the structural representation of the lung ventilator of the intelligent breathing machine of the present invention；
Left figure is the right view of the transmission device of the compressor 1 in Fig. 5 in Fig. 6, and the right figure in Fig. 6 is calming the anger in Fig. 5 The left view of the transmission device of machine 2；
Fig. 7 is the structural representation of the piston rod of the lung ventilator of the intelligent breathing machine of invention.
Fig. 8 eliminates the apparatus structure schematic diagram of fluctuation for the distribution of the lung ventilator of this intelligent breathing machine of the invention.
Embodiment
With reference to example and accompanying drawing, the invention will be further described, it is noted that following examples are only To be schematical, it is not intended to the limitation present invention.
With reference to Fig. 1, intelligent breathing machine of the invention includes control unit ECU6, in addition to motor 30, described control unit 6 For the rotating speed of controlled motor 30 so as to control the displacement of lung ventilator 1, in addition to air bleeding valve 5,1 for controlling lung ventilator The pressure at expulsion of blast pipe, in addition to human body variable quantity measuring unit 7, the human body variable quantity measuring unit change including abdominal circumference Amount and/or bust variable quantity measuring unit, for the state modulator motor 30 according to abdominal circumference variable quantity and/or bust variable quantity The opening and closing amount of rotating speed and air bleeding valve 5, so as to control the capacity and pressure at expulsion of lung ventilator.Also used including cloud processing server 8 The ECU is returned in the customer parameter for receiving ECU collections and after being calculated.Cloud processing server 8 is for example for according to user Breath data parameter determine the benchmark capacity and pressure at expulsion of lung ventilator.
With reference to Fig. 2, the air bleeding valve 5 includes butterfly exhaust valve plate 51, and one end and the butterfly exhaust valve plate 51 of exhasut valve stem 52 are consolidated Fixed connection, the other end passes through blast pipe, and is configured with helical gear 53 in the end of the other end.Exhasut valve stem 52 and blast pipe 44 Between sealed using sealing ring.Also include motor 55, motor 55 is connected to ECU6 by wire 56, and motor 55 is defeated Helical gear 54 is configured with shaft to be used to drive the helical gear 53 of exhasut valve stem 52 to rotate, so as to control opening for air bleeding valve 5 Degree is closed, and then controls the pressure at expulsion of blast pipe.
, it is necessary to all keep malleation in the overall process that user breathes, in air-breathing just for double level respirators Pressure is more than malleation when exhaling.Therefore need to accurately control the opening and closing degree of air bleeding valve 5 and duration.
With reference to Fig. 3, abdominal circumference variable quantity measuring unit and/bust variable quantity measuring unit include elastic shroud 71 and stress Monitoring unit 72, the elastic shroud 71 is used for the belly or chest for being enclosed on user, and the stress monitoring unit 72 is used to supervise Stress situation of change and the stress duration of elastic shroud 71 are surveyed, so as to obtain the respiratory amplitude and repiratory frequency of user.It is described Stress monitoring unit 72 includes wireless communication module, for being communicated with ECU6.
As shown in figure 4, the respiratory amplitude and repiratory frequency that stresses typical monitoring unit 72 is monitored is as shown in the figure.Continue in air-breathing In time T1, stress gradually increases, and has one section of stable time T2 in the end stress of breathing process, and expiration is entered afterwards and is continued Time T3, stress is gradually reduced, and has one section of stationary time T4 in the end stress of exhalation process, and air-breathing is again introduced into afterwards and is continued Time, circulate successively.The duration of the record said process of stress monitoring unit 72 is simultaneously sent to ECU6, while also recording air-breathing The valley value N2 of stress in the crest value N1 and expiration duration T 3 of duration T 1.And send out crest value N1 and valley value N2 Give ECU6.It should know, the breathing process and exhalation process of user are monitored by stress monitoring unit 72, therefore work as stress Monitoring unit 72 monitor stress start increase when, judge that user has entered breathing process, when monitor stress start reduce when, sentence Disconnected user has carried out expiration exhalation process, so that the parameter that the monitored unit 72 of opening and closing transformation period of air bleeding valve 5 is monitored And control.
Be stored with user data in ECU6, for example benchmark capacity and pressure at expulsion.Motor is preset according to the user data 30 rotating speed is so as to control the extraction flow of lung ventilator 1, and the old complaint user data presets opening and closing degree and the maintenance of air bleeding valve 5 Time, so as to control the pressure at expulsion and pressure of lung ventilator 1 to hold time.When ECU6 monitors that above-mentioned crest value N1 sends change When, according to the rotating speed of variable quantity controlled motor 30.The dynamic adjustment to the capacity of lung ventilator can thus be realized.
In certain embodiments, the ECU6 is collected every the air-breathing stress crest value N1 in special time such as 30 seconds And the average crest value Nk of air-breathing stress in the special time, and the average crest value Nk and predetermined value Ny ratios are obtained after adding up Compared with rotating speeds of the ECU6 according to Nk and Ny difference controlled motor in next special time.Ny can be based on customer parameter Default value, the value and the height of such as human body, the age are relevant.So it is achieved that according to the inspiratory capacity size of user dynamically Control the capacity of lung ventilator 1.The capacity of lung ventilator can also be by controlling the aperture of air bleeding valve to realize.I.e. ECU6 is according to Nk Opening and closing degree of the air bleeding valve in next special time is controlled with Ny difference.
In a particular embodiment ECU6 collect every in special time such as 30 seconds inspiratory duration T1, it is steady when Between T2, expiration duration T 3, stationary time T4 value, and calculate average value Tp1 of the T1 and T2 sums in the special time, The malleation retention time of next special time breathing process is determined according to average value Tp1；T3 and T4 sums are calculated simultaneously to exist Average value Tp2 in the special time, when determining that the malleation of next special time exhalation process is kept according to average value Tp2 Between.
In next special time, the regulation of above-mentioned malleation retention time is carried out by air bleeding valve 5.Adjust air bleeding valve 5 generally maintain maximum opening in breathing process, and holding time for the maximum opening is determined by Tp1；Air bleeding valve 5 is adjusted to exhale During generally maintain compared with small guide vane, should be determined compared with holding time for small guide vane by Tp2.Thus, the row of lung ventilator is just realized The dynamic adjustment of atmospheric pressure.For example, the average value of multiple T1+T2 sums in special time is 1.4 seconds, and in special time The average value of interior multiple T3+T4 sums is 2.1 seconds, then controls air bleeding valve 5 to maintain larger opening to be 1.4 seconds, and compared with small guide vane For 2.1 seconds.
The dynamic adjustment of above-mentioned capacity and pressure at expulsion make use of the respiration parameter in passing special time to determine down The respiration parameter of one special time, realizes the self-teaching and regulation of lung ventilator 1, and this method that dynamically adjusts especially has Advantage.
The concrete structure of the lung ventilator 1 of the present invention, such as Fig. 5-8.
With reference to Fig. 5, a kind of lung ventilator of the invention includes at least two compressor units 1 and 2, described two compressor lists Member is set up in parallel.The piston 12 of the free movement including cylinder 11 and in cylinder 11 of compressor unit 1, in addition to it is solid with piston 12 Surely the piston rod 13 connected, additionally including intake valve 14 and air bleeding valve 15.When piston 12 is descending, intake valve 14 is opened and arranged Air valve 15 is closed, and when piston 12 is up, intake valve 14 is closed and air bleeding valve 15 is opened.Compressor unit 2 includes the He of cylinder 21 The piston 22 of the free movement in cylinder 21, in addition to the piston rod 23 being fixedly connected with piston 22, additionally including intake valve 24 and air bleeding valve 25.When piston 22 is descending, intake valve 24 is opened and air bleeding valve 25 is closed, when piston 22 is up, intake valve 24 close and air bleeding valve 25 is opened.Also include gear unit 3, the gear unit 3 includes the piston rod for being arranged on two compressors 1 Motor between 13 and the piston rod 23 of compressor 2, motor driving driving wheel 31 rotates, driving wheel and the spiral line on worm screw 33 The perpendicular contact in part 32, constitutes endless screw transmission agent, when motor is rotated, and worm screw 33 will be driven to rotate.
With reference to Fig. 5 and 6, the two ends of worm screw 33 are each configured with gear 36 and gear 35, its middle gear 36 and compressor 1 Bar shaped tooth 131 and 132 on piston rod 13 is contacted, and gear 36 includes base circle portion and toothed portion 361, the edge of toothed portion 361 The periphery for gear 36 is continuously distributed into 180 degree, and such gear 36 is a kind of only half gear with " half " toothed portion, gear 36 there is centre bore 362 to be used to be fixedly connected with one end of worm screw 33.Gear 35 and the bar shaped tooth on the piston rod 23 of compressor 2 231 and 232 contacts, gear 35 includes base circle portion and toothed portion 351, and periphery of the toothed portion 351 along gear 35 is into 180 Degree is continuously distributed, and such gear 35 is a kind of only half gear with " half " toothed portion, and there is gear 35 centre bore 352 to be used for It is fixedly connected with the other end of worm screw 33.
With reference to Fig. 6 and Fig. 7, the concrete structure sterogram of piston rod 13 and 23 is shown.Piston rod 13 includes base shaft part And from the vertical bar shaped tooth 131 and 132 stretched out towards motor drive direction in the both sides of the base shaft part, bar shaped tooth 131 and 132 for pair Configuration is put, gear 36 is configured between the opposed bar shaped tooth 131 and 132, when gear 36 is rotated, the toothed portion of gear 36 361 can contact with one of bar shaped tooth 131 or bar shaped tooth 132.
Piston rod 23 is vertical towards motor drive direction stretching two equally including base shaft part and from the both sides of the base shaft part The bar shaped tooth of root, two bar shaped teeth are arranged opposite, and gear 35 is configured between this two opposed bar shaped teeth, when 35 turns of gear When dynamic, the toothed portion 351 of gear 35 can be contacted with one of this two opposed bar shaped teeth.
When motor is rotated, worm screw 33 rotates with moving gear 36.Reference picture 3, gear 36 is continuous clockwise to be rotated, and works as gear When 36 toothed portion 361 is contacted with the bar shaped tooth 132 in left side, piston rod 13 will be driven to move upwards, when the toothed portion of gear 36 361 with the bar shaped tooth 131 on right side when being contacted, and piston rod 13 will be driven to move downward.So as to realize the piston of compressor 1 about 12 Motion, completes air inlet and exhaust stroke.
When motor is rotated, the same band moving gear 35 of worm screw 33 is rotated.Reference picture 3, gear 35 will be rotated continuously counterclockwise, When toothed portion 351 and the bar shaped tooth contact in left side of gear 35, piston rod 23 will be driven to move downward, when the teeth portion of gear 35 Points 351 with the bar shaped tooth contact on right side when, piston rod 23 will be driven to move upwards.So as to realize the piston of compressor 2 about 22 Motion, completes air inlet and exhaust stroke.
The phase difference 180 degree of the gear 36 and gear 36, when motor is continuously rotated, the piston 12 of compressor 1 exists When being moved upwards under the driving of gear 36, the piston 22 of compressor 2 is moved downward under the driving of gear 35；When compressor 1 When piston 12 is moved downward under the driving of gear 36, the piston 22 of compressor 2 is moved upwards under the driving of gear 35.Adjustment The phase of the piston 12 and piston 22 also differs 180 degree, and so when compressor 1 carries out intake stroke, compressor 2 is arranged Gas stroke, when stroke is exhausted in compressor 1, compressor 2 carries out intake stroke.Which achieves the lung ventilator of the present invention Continuous output, is exported without the lung ventilator as prior art for pulsating.So, as a result of double rack structure, no It is rotating forward or reversion by motor, does not affect the operating of lung ventilator.For example with reference to Fig. 2, when left side gear is rotated clockwise, The gear on right side is rotated counterclockwise, and now the piston rod in left side is moved downward, and the piston rod on right side is moved upwards；Work as left side gear When rotating counterclockwise, the gear on right side is rotated clockwise, and now the piston rod in left side is still moved downward, and the piston rod on right side is still So motion is worked as upwards.
Referring again to Fig. 8, the orchestration system of lung ventilator of the invention includes air inlet pipe 43 and inlet chamber 41, and inlet chamber 41 has There is air intake branch to be connected respectively at the intake valve 14 of compressor 1 with the intake valve 24 of compressor 2.Also include blast pipe 44, and Discharge chamber 42, discharge chamber 42 respectively there is branch pipe to be connected with the air bleeding valve 15 of compressor 1 and the air bleeding valve 5 of compressor 2.Due to adopting With inlet chamber 41 and discharge chamber 42, admission pressure and pressure at expulsion can be caused to tend towards stability, realize air inlet and exhaust ground It is carried out continuously.
Especially, bounce cylinder 47 is also configured with blast pipe 44, the inside of bounce cylinder 47 has damper piston 48, delayed Rush the bottom that piston 48 is connected to bounce cylinder 47 by spring.Bounce cylinder 47 is connected between having blast pipe by air inlet 45 It is logical.So as to form sealed cushion chamber between air inlet 45 and damper piston 48.It is (this when being vented ground pressure and fluctuating Fluctuation can be changed because of admission pressure, or motor rotary speed changes and caused), if pressure at expulsion is excessive, Portion discharge will enter in cushion chamber, and in the presence of spring and damper piston 48, the air pressure between cushion chamber and blast pipe reaches To stable, so as to eliminate the pressure fluctuation in blast pipe.Also there is air bleeding valve 46 to be arranged on blast pipe 45 on blast pipe 43 And positioned at the rear of bounce cylinder 47, the speed of exhaust can be adjusted.The outlet of exhaust is adjusted according to the pressure of breathing Speed.
The ventilator-structure of the present invention is simple, and operation is simple, it is not necessary to using complicated controlling party as prior art Method, continually converts the rotation direction of motor with realizing air-flow continuous output.When motor is continuously rotated, due to compressor 1 180 are differed with the piston phase of compressor 2, while drive gear also differs 180 degree, therefore with can realizing air-flow continuous input And output.
The present invention intelligent breathing machine by using half gear form, realize single compressor it is constant change person up to turn In the case of dynamic direction, air inlet and exhaust stroke are completed, it is possible to achieve the stable output in air-flow ground, construct a kind of pair of level breathing Machine.Dynamic adjustment is carried out to the capacity and pressure at expulsion of lung ventilator according to the data of user simultaneously, it is possible thereby to user Breathing syndrome effectively treated, improve user adaptation degree.
Although be described in detail to the present invention in conjunction with the embodiments, it should be understood by those skilled in the art that Ground is that the present invention is not limited only to specific embodiment, on the contrary, in the various amendments without departing from the application spirit and essence, becoming Shape and replacement are all fallen among the protection domain of the application.

Claims (10)

1. a kind of intelligent breathing machine, including control unit ECU, motor, described control unit are used for the rotating speed for controlling the motor So as to control the capacity of lung ventilator, in addition to air bleeding valve, the pressure at expulsion of the blast pipe for controlling lung ventilator；Its feature exists In, in addition to human body variable quantity measuring unit, the human body variable quantity measuring unit include abdominal circumference variable quantity measuring unit and/or Bust variable quantity measuring unit, for the rotating speed and row according to abdominal circumference variable quantity and/or the state modulator motor of bust variable quantity The opening and closing parameter of air valve, in addition to cloud processing server are used to receive the customer parameter of ECU collections and return to institute after being calculated State ECU.
2. intelligent breathing machine according to claim 1, it is characterised in that the human body variable quantity measuring unit includes elasticity Shroud and stress monitoring unit, the elastic shroud are used for the belly or chest for being enclosed on user, the stress monitoring unit For monitoring stress variation situation and the stress duration of elastic shroud, so that the respiratory amplitude and repiratory frequency of user is obtained, The stress monitoring unit also includes wireless communication module, for being communicated with the ECU.
3. intelligent breathing machine according to claim 2, it is characterised in that the stress monitoring unit encloses according to monitoring elasticity The stress variation situation of band and stress duration obtain inspiratory duration T1 in special time, the end of breathing process Stationary time T2, expiration duration T 3, the permanent balance time T4 of exhalation process are simultaneously sent to the ECU, while also recording Stress crest value N1 in inspiratory duration T1, and crest value N1 is sent to ECU.
4. intelligent breathing machine according to claim 3, it is characterised in that the ECU presets institute according to the customer parameter The rotating speed of motor is stated to control the initial exhaust flow of lung ventilator；The ECU is by the air-breathing stress wave in the special time Obtain the average crest value Nk of air-breathing stress in the special time after peak value N1 is cumulative, and by the average crest value Nk and predetermined value Ny compares, rotating speeds of the ECU according to Nk and Ny comparative result controlled motor in next special time.
5. intelligent breathing machine according to claim 3, it is characterised in that the ECU is according to the default row of the customer parameter The initial opening and closing degree of air valve and hold time, so as to control the pressure at expulsion and pressure of lung ventilator to hold time；The ECU Average value Tp1 of the T1 and T2 sums in the special time in the special time is calculated, is determined according to average value Tp1 next The malleation retention time of breathing process in individual special time；T3 and T4 sums are calculated in the special time simultaneously when this is specific Interior average value Tp2, the malleation retention time of next special time exhalation process is determined according to average value Tp2.
6. the intelligent breathing machine according to claim 1-5 any one, it is characterised in that the lung ventilator includes two pressures Mechanism of qi unit, described two compressor units are set up in parallel；Each of described two compressor units include cylinder and The piston of free movement in the cylinder, in addition to the piston rod being fixedly connected with the piston, in addition to intake valve and exhaust Valve, when descent of piston, intake valve is opened and exhaust valve closure, when piston stroking upward, and intake valve is closed and air bleeding valve is opened；Also Including gear unit, the gear unit includes the motor being arranged between the piston rod of described two compressor units, described Motor is used to drive driving wheel to rotate, the driving wheel with the spiral line part on worm screw is perpendicular contacts, composition worm-drive System, when motor is rotated, drives worm screw to rotate；The two ends of the worm screw are each configured with a gear, one of gear Be in contact for the bar shaped tooth that the piston rod both sides with one of compressor unit are set respectively, another gear be used for it is another The bar shaped tooth that the piston rod both sides of one compressor unit are set respectively is in contact；Each gear includes base circle portion and teeth portion Point, periphery of the toothed portion along the gear is continuously distributed into 180 degree；There is each gear centre bore to be used for and worm screw It is fixedly connected；Each piston rod includes base shaft part and vertically stretched from the both sides of the base shaft part towards motor drive direction The two bar shaped teeth gone out, two bar shaped teeth are arranged opposite.
7. intelligent breathing machine according to claim 6, it is characterised in that between the gear of described two compressor units Phase difference is that the phase difference between 180 degree, the piston of described two compressor units is 180 degree.
8. intelligent breathing machine according to claim 7, it is characterised in that the lung ventilator also includes air distribution system, described Air distribution system includes air inlet pipe and inlet chamber, and there is inlet chamber intake valve of the air intake branch respectively with each compressor to connect； Also include blast pipe, and discharge chamber, discharge chamber respectively there is branch pipe to be connected with the air bleeding valve of each compressor.
9. intelligent breathing machine according to claim 8, it is characterised in that be also configured with buffering gas on the blast pipe There is damper piston inside cylinder, the bounce cylinder, the damper piston is connected to the bottom of bounce cylinder by spring, described Connected between bounce cylinder and the blast pipe by air inlet, so as to form sealing between the air inlet and damper piston Cushion chamber.
10. intelligent breathing machine according to claim 9, it is characterised in that the air bleeding valve is arranged on the blast pipe And positioned at the rear of the bounce cylinder.
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CN111481786A (en) * 2020-05-14 2020-08-04 杨建新 Synchronous auxiliary breathing device of air bag inflation and deflation type breathing machine

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