CN208927327U - A kind of cough auxiliary device for simulating normal human vocal band's function - Google Patents
A kind of cough auxiliary device for simulating normal human vocal band's function Download PDFInfo
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- CN208927327U CN208927327U CN201820248338.2U CN201820248338U CN208927327U CN 208927327 U CN208927327 U CN 208927327U CN 201820248338 U CN201820248338 U CN 201820248338U CN 208927327 U CN208927327 U CN 208927327U
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- magnetic valve
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Abstract
The utility model discloses a kind of cough auxiliary devices for simulating normal human vocal band's function, it is related to airway management technical field in respirology and critical care medicine comprising have three-way magnetic valve, pressure sensor, single-chip microcontroller, less electromagnetic valve switch circuit, check valve, power supply, key, external catheter and trachea cannula conduit；The advantageous effects that this programme has are as follows: (1) the above-mentioned auxiliary expectoration device volume, in this programme is small, and structure is simple, and fault point is few, and ventilation aperture is identical as breathing standard, and installation, disassembly and cleaning are all convenient；(2), this programme application solenoid valve, pressure sensor, flow sensor are monitored control, have preferable elimination efficiency to different patients；(3), for there is autopsychic patient, patient can voluntarily can carry out cough and manually control according to own situation.
Description
Technical field
The utility model relates to airway management technical fields in respirology and critical care medicine, and in particular to a kind of simulation
The cough auxiliary device of normal human vocal band's function.
Background technique
Cough is most important air flue protection and cleans up mechanism, eliminates air flue endocrine or foreign matter, prevents sputum retention
The generation of the severe complications such as the caused decline of lung tissue ventilatory function, atelectasis and pulmonary infection.Referring to figure 1, just
Normal cough work is divided into following four step: firstly, the secretion or foreign matter in air flue cause cental system to generate cough instead
It penetrates；Then, air-breathing muscular exertion, which is shunk, generates deep suction movement (inspiratory capacity 1-2L)；Then, glottis closes, and expiration muscular exertion is received
Contracting increases intrathoracic pressure rapidly in a short time (0.2S)；Finally, glottis opens suddenly, the abrupt release of intrathoracic tooth can significantly increase
Add exhaled gas flow (peak flow can generally reach 12L/S), shearing crushes air flue endocrine and excretes.In influence
The factor for stating either step can reduce cough efficiency, and then lead to sputum inadequate drainage.
Mechanical ventilation is the important organ support means for the treatment of of severe disease patient, high-caliber and accurate logical to reach
Gas management, Mechanical ventilation must be set up artificial airway, a kind of to be placed in endotracheal pipe through mouth and nose or neck, as tracheae is inserted
Pipe or tracheotomy.Artificial airway bypasses the function of the upper respiratory tract and glottis, compromises the third step of cough movement, i.e., no sound
Door closes, and cannot form enough intrapulmonic pressure, necessarily leads to the cough decline of peak flow velocity and the reduction for efficiency of coughing, influences air flue
Endocrine drainage.
Due to the decline of patient's artificial airway cough efficiency, clinic is frequently with the invasive side such as sputum aspirator tube or branchofiberoscope
Formula carries out the drainage of air flue endocrine, but this mode is only capable of draining big airways or central airway endocrine, externally
All small airway endocrine drainage effects are not good enough.In addition, not only resulting in blood oxygen saturation decline and increased heart rate etc. in operation
Adverse reaction, or even also will increase the damage risk and patient medical burden of air flue.
Another cough auxiliary device is mechanical inspiratory exhaust (Mechanical Insufflation- in clinic
Exsufflation, abbreviation MIE).MIE increases gas exhalation flow to negative value by reducing intra-airway pressure in expectoration,
To reach cough auxiliary purpose.But there are following defect and risks for the technology: 1, the mechanical tidal volume that increases will lead to injury of lungs
Risk increase；2, the generation of uncomfortable and man-machine confrontation complication, significant shadow be will lead to when applied to autonomous respiration patient
Ring therapeutic effect；3, the device is expensive and complicated；4, it needs to disconnect ventilator when operating, increases patient's anoxic and ventilation function
The risk that can decline；5, negative pressure is possible to will lead to alveolar collapse when exhaling.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of normal human vocal band's function of simulation
The cough auxiliary device of energy, the cough auxiliary device can simulate the glottic function of normal person using autonomous cough mechanism, and
Patient's efficiently cough and expectoration is assisted in the case where not turning off ventilator, reduces severe complication caused by sputum retention.
To achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of cough auxiliary device for simulating normal human vocal band's function, includes three-way magnetic valve, pressure sensor, monolithic
Mechanical, electrical magnet valve switching circuit, check valve, power supply, key, external catheter and trachea cannula conduit, wherein the external catheter
It is connected respectively on the A mouth and B mouth of the three-way magnetic valve with trachea cannula conduit, the check valve setting is described outer
Connect between conduit and the A mouth of three-way magnetic valve, described pressure sensor one end is connected with the single-chip microcontroller, the other end with it is described
Trachea cannula conduit is connected, and the single-chip microcontroller is also connected with the electromagnetic switch circuit and power supply respectively, and the key is by setting
The conducting wire being equipped with is connected in series between the single-chip microcontroller and power supply, the less electromagnetic valve switch circuit both ends also respectively with the type
Three-way magnetic valve is connected with power supply, and when the three-way magnetic valve is in off-position, A mouthfuls are connected with B mouthfuls, when the threeway
Solenoid valve be in electricity condition when, B mouthfuls are connected with C mouthfuls.
It further, further include having gas stream when breathing and cough for monitoring being set at described three-way magnetic valve B mouthfuls
The flow sensor of amount, wherein the flow sensor is connected with the single-chip microcontroller, the data on flows for being monitored is sent
Enter into the single-chip microcontroller and is handled.
Further, the pressure sensor is installed on the inside of the trachea cannula conduit.
Further, the less electromagnetic valve switch circuit is transistor switching circuit structure.
Compared with prior art, the advantageous effects that this programme has are as follows: (1) the above-mentioned auxiliary expectoration, in this programme
Device volume is small, and structure is simple, and fault point is few, and ventilation aperture is identical as breathing standard, and installation, disassembly and cleaning are all convenient；
(2), this programme application solenoid valve, pressure sensor, flow sensor are monitored control, have preferably to different patients
Elimination efficiency；(3), for there is autopsychic patient, patient can voluntarily can carry out manual control of coughing according to own situation
System.
Detailed description of the invention
Step schematic diagram when Fig. 1 is human normal Coughing.
Fig. 2 is the cough assistant apparatus structure schematic diagram in the present embodiment.
Fig. 3 is the cough auxiliary device flow diagram in the present embodiment.
Description of symbols in figure:
1- three-way magnetic valve, 2- external catheter, 3- trachea cannula end conduit, 4- single-chip microcontroller, 5- less electromagnetic valve switch circuit, 6-
Pressure sensor, 7- key, 8- power supply, 9- flow sensor, 10- check valve.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.
This programme is to need to disconnect when in use for existing cough auxiliary device to be operated under ventilator state, is deposited
In the case where many defects, and a kind of cough auxiliary device for the normal human vocal band's function of simulation of proposing, cough auxiliary dress
The glottic function of normal person can be simulated using autonomous cough mechanism by setting, and disease is assisted in the case where not turning off ventilator
People's efficiently cough and expectoration reduces severe complication caused by sputum retention.
It is the cough assistant apparatus structure schematic diagram in the present embodiment referring to shown in attached drawing 2.Cough in the present embodiment is auxiliary
To help device include three-way magnetic valve 1, pressure sensor 6, single-chip microcontroller 4, less electromagnetic valve switch circuit 5, power supply 8, key 7, unidirectional
Valve 10, external catheter 2 and trachea cannula end conduit 3, wherein external catheter 2 and trachea cannula end conduit 3 are connected respectively
Three-way magnetic valve 1 A mouth and B mouth on, check valve 10 is arranged between external catheter 2 and the A mouth of three-way magnetic valve 1, institute
In this way, being since the A mouth of three-way magnetic valve 1 is connect with external catheter 2, patient is by A mouth of three-way magnetic valve 1 and outside
It connects conduit 2 to be connected with external air, realizes normal respiratory function, gas flows out in order to prevent in use, outside
It connects and is provided with check valve 10 between conduit 2 and the A mouth of three-way magnetic valve 1, when patient's eupnea, the suction for breathing generation makes
Check valve 10 is opened, outside air through external catheter 2, three-way magnetic valve 1 A mouth into figure patient's body, realization eupnea function
Energy.6 one end of pressure sensor is connected with single-chip microcontroller 4, and the other end is connected with trachea cannula end conduit 3, single-chip microcontroller 4 also respectively with
Electromagnetic switch circuit is connected with power supply 8, and key 7 passes through the conducting wire being provided with and is connected in series between single-chip microcontroller 4 and power supply 8, electricity
5 both ends of magnet valve switching circuit are also connected with three-way magnetic valve 1 and power supply 8 respectively.It should be noted that will be by this programme
Key 7 is connected in series between single-chip microcontroller 4 and power supply 8 by conducting wire, and being in practical work process can be by key 7
It is no in the state being pressed, the corresponding signal that can be generated in single-chip microcontroller 4 accordingly, so that single-chip microcontroller 4
It can control the on off operating mode of three-way magnetic valve 1.Above-mentioned pressure sensor 6 in the present embodiment is mounted in trachea cannula conduit
Furthermore side uses existing three pole for controlling the less electromagnetic valve switch circuit 5 that above-mentioned three-way magnetic valve 1 acts in the present embodiment
Pipe switching circuit structure, is not just described further transistor switching circuit herein.Above-mentioned threeway electromagnetism in the present embodiment
Valve 1 its when being in off-position, A mouthfuls are connected with B mouthfuls, when three-way magnetic valve be in electricity condition when, B mouthfuls with C mouthfuls of phases
Connection.
In actual work, when patient's eupnea, three-way magnetic valve 1 is powered off, and A mouth thereon is with B mouthfuls in connected state
State, outside air are passed in and out with patient's aspiratory action by solenoid valve internal.When patient coughs, the measurement of pressure sensor 6 was coughed
Pressure in journey in air flue, when the intra-airway pressure measured, which reaches three-way magnetic valve 1, sets cracking pressure value, single-chip microcontroller 4
It controls less electromagnetic valve switch circuit 5 to act, so that above-mentioned three-way magnetic valve 1 must be electric, the B mouth of three-way magnetic valve 1 thereon is connected with C mouthfuls
Logical, the sputum gas that patient coughs out passes through artificial nest, trachea cannula end conduit 3, three-way magnetic valve 1 B mouth thereon and C mouthfuls
It discharges, to prevent from playing the result for causing patient airway to damage because intra-airway pressure is excessively high.
In addition, when this programme is additionally provided with for detecting patient respiratory and cough between single-chip microcontroller 4 and three-way magnetic valve 1
The B mouth and monolithic of three-way magnetic valve 1 thereon is arranged in the flow sensor 9 of gas liquid flow, the specific flow sensor 9
Between machine 1, why the flow sensor 9 is arranged at the B mouth of three-way magnetic valve 1 thereon, is that patient can carried out
Under breathing and Coughing, the gas liquid flow under corresponding state status can be detected, for the health of assessment patient at this time
State is provided effectively with reference to assessment data.
During the work time, single-chip microcontroller 4 acquires 6 signal of pressure sensor and 7 information of key, to control solenoid valve accordingly
Switching circuit 5 is on and off.The setting of key 7 is not reach single for its collected pressure value in pressure sensor 6
Under the cracking pressure state of value that piece machine 4 is set but in the case that patient kecks phlegm (such as when the states such as the patient feels are uncomfortable),
Patient can by pressing the button 7 so that single-chip microcontroller 4 control less electromagnetic valve switch circuit 5 act so that three-way magnetic valve 1 it is electric,
So that the B mouth of three-way magnetic valve 1 thereon is connected with C mouthfuls, spit convenient for patient.Power supply 8 in the present embodiment is for being
Single-chip microcontroller and three-way magnetic valve 1 provide driving voltage, and the driving voltage of pressure sensor 6 is provided by single-chip microcontroller 4.
It is the cough auxiliary device flow diagram in the present embodiment referring to shown in attached drawing 3.In actual work.It is led
Want the following steps are included:
After S1, energization, power supply generates MCU driving voltage and solenoid-driven voltage respectively, and single-chip microcontroller is arranged after being powered
Inner parameter, initialization pressure parameter P2 (pressure parameter P2 is to be adjusted according to actual demand), single-chip microcontroller generates pressure and passes
Sensor driving voltage；
S2, single-chip microcontroller capture button information are judged whether there is by key pressing, if there is pressing key pressing, single-chip microcontroller control electricity
Magnet valve switching circuit makes its closing, and three-way magnetic valve, which is powered, closes；If not pressing key pressing information, step continuation is repeated
Capture button information；
S3, single-chip microcontroller acquire trachea cannula end manifold pressure signal P1, by collected pressure signal P 1 with set in advance
The control pressure P2 set is compared, if P1 > P2, single-chip microcontroller control less electromagnetic valve switch circuit makes its disconnection, three-way magnetic valve
Power-off conducting, high pressure gas runs through three-way magnetic valve discharge in patient body, and secretion is excreted with high-speed flow, turns
Enter in above-mentioned steps S2；The step is repeated if P1 < P2, single-chip microcontroller continues to acquire trachea cannula end manifold pressure signal
P1。
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technology, then the utility model is also intended to include these modifications and variations.
Claims (4)
1. a kind of cough auxiliary device for simulating normal human vocal band's function, it is characterised in that: include three-way magnetic valve, pressure biography
Sensor, single-chip microcontroller, less electromagnetic valve switch circuit, check valve, power supply, key, external catheter and trachea cannula conduit, wherein described
External catheter and trachea cannula conduit are connected respectively on the A mouth and B mouth of the three-way magnetic valve, the check valve setting
Between the A of the external catheter and three-way magnetic valve mouth, described pressure sensor one end is connected with the single-chip microcontroller, another
End is connected with the trachea cannula conduit, and the single-chip microcontroller is also connected with the less electromagnetic valve switch circuit and power supply respectively, described
Key passes through the conducting wire being provided with and is connected in series between the single-chip microcontroller and power supply, and the less electromagnetic valve switch circuit both ends are also divided
It is not connected with the three-way magnetic valve and power supply, when the three-way magnetic valve is in off-position, A mouthfuls are connected with B mouthfuls, when
The three-way magnetic valve be in electricity condition when, B mouthfuls are connected with C mouthfuls.
2. a kind of cough auxiliary device for simulating normal human vocal band's function according to claim 1, it is characterised in that: also wrap
The flow sensor of gas flow when breathing and cough for monitoring being set at described three-way magnetic valve B mouthfuls is included, wherein
The flow sensor is connected with the single-chip microcontroller, and the data on flows for being monitored is sent in the single-chip microcontroller and carries out
Processing.
3. a kind of cough auxiliary device for simulating normal human vocal band's function according to claim 1, it is characterised in that: described
Pressure sensor is installed on the inside of the trachea cannula conduit.
4. a kind of cough auxiliary device for simulating normal human vocal band's function according to any one of claims 1 to 3, feature exist
In: the less electromagnetic valve switch circuit is transistor switching circuit structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820248338.2U CN208927327U (en) | 2018-02-11 | 2018-02-11 | A kind of cough auxiliary device for simulating normal human vocal band's function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820248338.2U CN208927327U (en) | 2018-02-11 | 2018-02-11 | A kind of cough auxiliary device for simulating normal human vocal band's function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208927327U true CN208927327U (en) | 2019-06-04 |
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ID=66713715
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820248338.2U Active CN208927327U (en) | 2018-02-11 | 2018-02-11 | A kind of cough auxiliary device for simulating normal human vocal band's function |
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| Country | Link |
|---|---|
| CN (1) | CN208927327U (en) |
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2018
- 2018-02-11 CN CN201820248338.2U patent/CN208927327U/en active Active
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