CN117503538B - Air mattress capable of automatically implementing prone position ventilation auxiliary treatment and control system thereof - Google Patents
Air mattress capable of automatically implementing prone position ventilation auxiliary treatment and control system thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/126—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with specific supporting surface
- A61G13/1265—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with specific supporting surface having inflatable chambers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2200/00—Information related to the kind of patient or his position
- A61G2200/30—Specific positions of the patient
- A61G2200/32—Specific positions of the patient lying
- A61G2200/325—Specific positions of the patient lying prone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2200/00—Information related to the kind of patient or his position
- A61G2200/30—Specific positions of the patient
- A61G2200/32—Specific positions of the patient lying
- A61G2200/327—Specific positions of the patient lying supine
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Abstract
The invention discloses an air mattress capable of automatically implementing prone position ventilation auxiliary treatment and a control system thereof. The advantage utilizes each region to control odd-even alternately to fill gassing, realize prone position and normal automatic switch of position of lying on back, the complex operation when having solved current device prone position and position of lying on back and switch over, need the inconvenient problem of manual adjustment operation, static mattress on the pad body has been increaseed simultaneously, support area pressure distribution is more even, it fills gassing to carry out odd-even circulation in turn to the region that the gas strip formed through three way solenoid valve, but head, shoulder dynamic fluctuation decompression when realizing prone position and normal automatic switch over of position control of lying on back, but no straight pressurized position, through gassing the cavity at three cavity gas strip middle parts of thorax department again, play the effect of decompressing patient's thorax portion, improve prone position mechanical ventilation's effect.
Description
Technical Field
The invention particularly relates to an air mattress capable of automatically implementing prone position ventilation auxiliary treatment and a control system.
Background
The severe patients with the new coronavirus are often accompanied by acute respiratory distress syndrome, the acute respiratory distress syndrome (acute respiratory distress syndrome, ARDS) refers to acute respiratory failure syndrome which is characterized by pulmonary edema, hyaline membrane formation and atelectasis as main pathological changes based on diffuse injury and enhanced permeability of pulmonary capillaries and is characterized by progressive respiratory distress and refractory hypoxia, the ARDS is a typical manifestation of acute lung injury to the late stage, the disease has the rapid onset, rapid development, extremely poor prognosis and mortality rate of more than 50%, the key of the ARDS treatment is that primary disease and causes thereof, such as wound treatment, infection focus is found in time, antibiotics sensitive to bacterial application of the disease, and inflammatory reaction is prevented from further affecting lung injury; more urgent is to correct the serious hypoxia of the patient in time, and gain valuable time for treating basic diseases, wherein the main treatment method is mechanical ventilation;
In the new coronavirus diagnosis and treatment scheme (tenth edition of trial) issued by the national health and wellness commission office, for the treatment of heavy and critical patients, especially for serious ARDS patients, in the condition of sufficient human resources, prone position ventilation should be performed for more than 12 hours per day, the prone position ventilation is performed by using a turn-over device or manual freehand operation, so that the patients mechanically ventilate in the prone position, and the oxygenation capacity of ARDS patients is improved, but when the prone position ventilation treatment is adopted, the patients are in the prone position state for more than 12 hours every 24 hours, the frequency of occurrence of pressure injury is increased due to long-term prone position treatment under intensive care, such injury can lead to prolonged hospitalization time, pain of the patients, possible surgical intervention and increase of nursing cost, and the occurrence of pressure injury in body parts such as face, chest, perineum, knee joint and toe are prevented, and the parts are not at any risk in the supine position of the patients, but are at great risk in the prone position;
The prone position ventilation function can be realized by a few brands of overseas imported bedsore-preventing air mattresses in the current market, but the prone position ventilation air mattresses cannot be comprehensively popularized and applied, the prone position mechanical ventilation function is realized by mainly inflating and deflating a certain air chamber through adjusting an air pressure adjusting valve of a single air chamber in the current market, the number of adjusting valves which are manually operated in the prone position and supine position switching process is too large, experience is needed to be relied on for adjusting the deflating degree, and replicability is not strong; meanwhile, the device is completely unsupported on the head of a patient, the shoulder of the patient is always supported by force, and the pressure is all in the shoulder, so that pressure sores are easy to generate on the shoulder of the patient; in addition, the prior device does not carry out decompression design on the chest and the abdominal cavity of a patient, has stronger chest and abdomen compression feeling, especially the chest is compressed, can squeeze the lung and influences the mechanical ventilation effect of the prone position.
In chinese patent 202120598348.0, the name is a prone position ventilation pressure sore prevention nursing mattress for severe patients, which is characterized in that the mattress comprises a main body: the nursing mattress further comprises a bronchus, a regulating valve, a main trachea and a tracheal joint, wherein a lower leg regulating area, a thigh regulating area, a crotch regulating area, an abdomen vacancy area, a chest regulating area, a chest lifting area, an intubation area and a head regulating area are sequentially arranged on the mattress main body from one end; a plurality of auxiliary air bags are arranged in the lower leg adjusting region, the thigh adjusting region and the chest adjusting region; the crotch air bag is arranged in the crotch adjusting area, the crotch air bag through groove is arranged in the middle of the crotch air bag, the chest air bag is arranged in the chest lifting area, the chest air bag through groove is arranged in the middle of the chest air bag, and the head air bags are arranged in the head adjusting area; the auxiliary air bag, the crotch air bag, the chest air bag and the head air bag are connected with the bronchus and then communicated with the main air pipe, the bronchus is provided with an adjusting valve, and the main air pipe is provided with an air pipe joint.
As shown in the figure of patent 202120598348.0, the patent mainly utilizes to inflate a plurality of air bags to realize the fit of human body, can realize the function of prone position, but to the adjustment of different air bags need adjust the governing valve on every bronchus, this kind of structure needs manual operation's governing valve quantity too many to adjust the gassing degree and need rely on experience, replicability is not strong, does not carry out the decompression design to patient's thorax and abdominal cavity simultaneously, and chest abdomen oppression sense is stronger, especially the thorax is pressed, can extrude the lung, influences prone position mechanical ventilation's effect.
Disclosure of Invention
The invention aims to solve the technical problems that the prior device in the background technology has no chest decompression design and has stronger chest and abdomen compression feeling, and the prior device has complicated operation when switching between the prone position and the supine position, and is inconvenient to manually adjust and use.
In order to solve the problems of complicated operation and inconvenient manual adjustment and use when the prone position and the supine position of the prior device are switched, the invention provides a control system capable of automatically implementing prone position ventilation auxiliary treatment air mattresses; the method is realized by the following technical scheme: a control system capable of automatically implementing prone position ventilation auxiliary treatment air mattress comprises a data acquisition unit, a data processing unit and a control unit, wherein the data acquisition unit is used for acquiring pressure data of all air strips in a mattress body and opening and closing conditions of all three-way electromagnetic valves, and then sending acquired results to the data processing unit;
The pressure data respectively comprise the current pressure data, the highest pressure data and the lowest pressure data of the air bar and the time when each pressure data is kept and the time when the two different pressure data are converted in the process from starting to stopping of the device;
The opening and closing condition data of the three-way electromagnetic valve comprises the opening and closing time of each interface of the three-way electromagnetic valve and the time for keeping the opening and closing;
The data processing unit is used for sending related parameter instructions to the control unit according to preset parameters selected on the touch screen, sending operation instructions to the three-way electromagnetic valve connected with the air pump by the control unit, wherein the operation instructions comprise opening and closing time of the air pump, opening and closing time of each interface of the three-way electromagnetic valve and time for keeping the opening and closing, generating a data packet by the operation instructions, sending the data packet to the data analysis unit, marking the data packet by starting time, and sending each group of data under the parameters acquired by the data acquisition unit to the data analysis unit;
The data analysis unit is used for analyzing and judging corresponding parameter data in each data packet sent by the data processing unit, comparing and judging the data generated by the data acquired after the execution of the preset parameters with standard data, obtaining an abnormal value of a certain point in the corresponding data packet according to the comparison analysis judgment result, judging the importance degree of the abnormal value, and finally sending the abnormal value to the touch screen popup window to remind, and for severe abnormality, sending a device operation stopping signal to the control unit by the data analysis unit, sending a device operation stopping instruction by the control unit, wherein the data analysis mode is as follows:
A1, calling out standard data corresponding to the parameter according to the executed preset parameter, marking the current pressure data in the data packet acquired by the data acquisition unit as Yt, marking the highest pressure data as Yh, marking the lowest pressure data as YI, marking the pressure maintenance as Yb, and marking the pressure data conversion as Yz;
a2, then Yt, yh, yl, yb and Yz are compared with standard data Bt, bh, B ¬ l, bb and Bz,
Normal is indicated if Yt, yh, yl, yb and Yz are within the ranges of Bt, bh, B ¬ l, bb and Bz;
If Yt, yh, yl, yb and Yz are not in the ranges of Bt, bh, B ¬ l, bb and Bz, then the difference is calculated by the formulas ct=bt-Yt, ch=bh-Yh, cl=bl-Yl, cb=bb-Yb and cz=bz-Yz;
A3, judging the abnormal degree according to the abnormal value range comparison Ct, ch, cl, cb and Cz, wherein the abnormal degree comprises slight abnormality, moderate abnormality and severe abnormality, the slight abnormality, the moderate abnormality and the severe abnormality can remind the touch screen popup window of overhauling and record the abnormal value, and for severe abnormality, the control unit sends a device operation stopping instruction to the device.
According to the technical scheme, the data analysis unit generates and stores the forward data statistics line graphs of the C t、Ch、Cl、Cb and the C z respectively, and the line graphs are called and checked through the touch screen, so that the service lives of different air bars, the three-way electromagnetic valve and the air duct in the device can be conveniently judged, and the problem points can be conveniently found during maintenance, so that the device is convenient to use.
According to the invention, odd-even interactive inflation and deflation can be independently controlled by utilizing each region, so that automatic switching of prone position and normal supine position control is realized, and the problems of complicated operation and inconvenience in manual adjustment operation during prone position and supine position switching of the conventional device are solved.
In order to solve the problem that the prior device has no chest decompression design and has strong chest and abdomen compression feeling, the invention provides an air mattress capable of automatically implementing prone position ventilation auxiliary treatment; the method is realized by the following technical scheme: the utility model provides a can implement prone position air ventilation auxiliary treatment air mattress automatically, includes host computer and pad body, the pad body is laid on the sick bed, and the host computer passes through the air duct with the pad body and is connected, be provided with the air pump of being connected with the air duct in the host computer, the air pump is through air duct and three way solenoid valve, does circulation inflation, gassing operation to the different cavities in the internal different gas strips of pad.
According to the invention, the support area is enlarged by utilizing the static mattress on the upper layer of the mattress body, the pressure distribution is more uniform, the region formed by the air bars is inflated and deflated alternately in an odd-even and alternate mode through the three-way electromagnetic valve, the automatic switching between the prone position and the normal supine position is realized, the head and the shoulder can be dynamically fluctuated for decompression, no direct compression part exists, and finally, the pressure of the chest of a patient is reduced by deflating the cavity in the middle of the three-cavity air bar arranged at the chest, so that the mechanical ventilation effect of the prone position is improved.
According to the technical scheme, the cushion body comprises the static pressure reducing layer, the air chamber layer and the supporting layer, the static pressure reducing layer, the air chamber layer and the supporting layer are sequentially overlapped, wherein the static pressure reducing layer and the supporting layer are arranged on the upper layer and the lower layer, the air chamber layer is arranged on the middle layer, the static pressure reducing layer is arranged to facilitate the increase of the supporting area, so that the pressure distribution is more uniform, the comfort level of a patient is improved, and meanwhile, the pressure sore can be slowed down.
According to the technical scheme, the air chamber layer comprises a plurality of air bars which are arranged in parallel, each air bar comprises a single-chamber air bar, a first double-chamber air bar, a second double-chamber air bar and a three-chamber air bar, one first double-chamber air bar is arranged, a plurality of single-chamber air bars, two double-chamber air bars and three-chamber air bars are arranged, and the plurality of air bars are arranged so as to control different positions through independent control of the plurality of air bars and facilitate switching between a prone position and a supine position.
For the optimization of the technical scheme of the invention, a section of interval is arranged at the connecting part of the two chambers of the second double-chamber air bar, the interval is not inflatable, and the arrangement is convenient for suspending and decompressing the neck, the abdomen and the perineum or the sacral tail of a patient, so that pressure sores are avoided from being generated at the parts.
According to the technical scheme, the single-chamber air bar, the first double-chamber air bar, the second double-chamber air bar and each independent chamber of the three-chamber air bar are communicated with the air duct through the three-way electromagnetic valve, so that the air inflation and deflation of each independent chamber can be controlled through the three-way electromagnetic valve conveniently, the control capability of the device is improved, and the device is convenient to use.
For the optimization of the technical scheme of the invention, the cavity formed by the plurality of air strips is divided into a head area, a central area odd, a central area even, a conventional area odd and a conventional area even, the five areas are connected in parallel through five three-way electromagnetic valves, the same air pump is used for supplying air, the odd-even alternate circulation inflation and deflation of the three areas are respectively controlled by controlling the on-off of the five three-way electromagnetic valves, and the even-odd alternate circulation inflation and deflation can realize dynamic fluctuation decompression, so that pressure sores are effectively prevented.
The main machine comprises a touch screen, a main control board, an air pump, a three-way electromagnetic valve and a pressure sensor, wherein the touch screen, the air pump, the three-way electromagnetic valve and the pressure sensor are respectively connected with the main control board, the pressure sensor comprises a first pressure sensor and a second pressure sensor, the first pressure sensor is connected with a first double-chamber air bar, the second pressure sensor is connected with a single-chamber air bar, a second double-chamber air bar and a three-chamber air bar through an air duct, and the arrangement is convenient for controlling the inflation amount of the air bar and is convenient for use.
Compared with the prior art, the invention has the following beneficial effects:
According to the technical scheme, odd-even alternating inflation and deflation can be independently controlled in each area, automatic switching of prone position and normal supine position control is achieved, the problems that operation is complex and manual adjustment is inconvenient when the prone position and the supine position of an existing device are switched are solved, meanwhile, a static mattress on the upper layer of a cushion body is utilized, the supporting area is enlarged, pressure distribution is more uniform, meanwhile, odd-even alternating inflation and deflation are carried out on the area formed by an air strip through a three-way electromagnetic valve, automatic switching of prone position and normal supine position control is achieved, meanwhile, the head and the shoulder can dynamically fluctuate and decompress, no direct compression part exists, and finally, the chest part of a patient is decompressed through deflation of a cavity in the middle of a three-cavity air strip arranged at the chest part, and the mechanical ventilation effect of the prone position is improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the interior of the cushion body;
FIG. 3 is a plenum layer distribution diagram;
FIG. 4 is a connection diagram of the air pump, three-way solenoid valve and chamber;
FIG. 5 is a control system flow diagram;
FIG. 6 is a conventional parameter setting interface for a touch screen;
FIG. 7 is a schematic diagram of a connection of a main control board;
Reference numerals illustrate: the device comprises a 1-host, a 11-touch screen, a 12-air duct, a 13-main control board, a 14-air pump, a 15-three-way electromagnetic valve, a 16-first pressure sensor, a 17-second pressure sensor, a 2-cushion body, a 21-static decompression layer, a 22-air chamber layer, a 23-supporting layer, a 24-air bar, a 25-single chamber air bar, a 26-first double-chamber air bar, a 27-second double-chamber air bar, a 28-three-chamber air bar and a 29-fixing belt.
Detailed Description
The following describes the technical solution in the embodiment of the present invention in detail with reference to fig. 1 to 7 in the embodiment of the present invention.
Example 1
As shown in figure 1, the air mattress and the control system capable of automatically implementing prone position ventilation auxiliary treatment mainly comprise a main machine 1, a mattress body 2 and a control part, wherein the mattress body 2 is placed on the bed body, and the main machine 1 is connected with the mattress body 2 mainly through an air duct 12.
As shown in fig. 1, 5 and 7, the control part includes a data acquisition unit, a data processing unit, a data analysis unit and a control unit, and is integrally integrated in the main control board 13.
The collecting unit is mainly used for collecting pressure data in each air bar 24 in the cushion body 2 and opening and closing conditions of each three-way electromagnetic valve 15, and then sending collected results to the data processing unit.
The pressure data includes the current pressure data, the highest pressure data, the lowest pressure data, and the constant time of each pressure data and the constant time of the transition between two different pressure data of the air bar 24 during the starting-stopping process of the device, and the opening and closing condition data of the three-way electromagnetic valve 15 includes the opening and closing time of each interface of the three-way electromagnetic valve 15 and the constant time of the opening and closing.
The data processing unit and the data analysis unit can acquire the data required by the data processing unit and the data analysis unit.
The data processing unit is configured to send related parameter instructions to the control unit according to preset parameters selected on the touch screen 11, the control unit sends operation instructions to the three-way electromagnetic valve 15 connected to the air pump 14, the operation instructions include opening and closing time of the air pump 14, opening and closing time of each interface of the three-way electromagnetic valve 15, and time when the three-way electromagnetic valve 15 is kept open and closed, the operation instructions generate data packets and send the data packets to the data analysis unit, in addition, the data processing unit can enable time marks for different data packets, and meanwhile, each group of data under the parameters collected by the data collection unit is sent to the data analysis unit, and the data analysis unit analyzes and judges the data.
The data analysis unit is mainly used for analyzing and judging corresponding parameter data in each data packet sent by the data processing unit, comparing and judging the data acquired after the execution of the preset parameters with standard data, obtaining an abnormal value of a certain point in the corresponding data packet according to a comparison analysis judgment result, judging the importance degree of the abnormal value, and finally sending the abnormal value to the touch screen 11 popup window to remind, wherein for severe abnormality, the data analysis unit sends a device operation stopping signal to the control unit, and the control unit sends an operation stopping instruction to the device, and the data analysis mode is as follows:
A1, calling out standard data corresponding to the parameter when each node is executed according to the preset parameter, and then marking data in a data packet acquired by a data acquisition unit, wherein the current pressure data is marked as Y t, the highest pressure data is marked as Y h, the lowest pressure data is marked as Y l, the pressure maintenance is often marked as Y b, and the pressure data conversion is often marked as Y z;
A2, comparing Y t、Yh、Yl、Yb and Y z with standard data B t、Bh、Bl、Bb and B z, and indicating that the method is normal if Y t、Yh、Yl、Yb and Y z are in the range of B t、Bh、Bl、Bb and B z;
If Y t、Yh、Yl、Yb and Y z are not within the range of B t、Bh、Bl、Bb and B z, then the difference is calculated by formulas Ct=Bt-Yt、Ch=Bh-Yh、Cl=Bl-Yl、Cb=Bb-Yb and C z=Bz-Yz;
A3, comparing the abnormal values with the C t、Ch、Cl、Cb and the C z according to the abnormal value range, judging the abnormal degree of the abnormal values, wherein the abnormal degree comprises slight abnormality, moderate abnormality and severe abnormality, the slight abnormality, the moderate abnormality and the severe abnormality can remind the touch screen 11 of popup window maintenance and record the abnormal values, and for severe abnormality, the control unit sends a device operation stopping instruction to the device.
In order to know the service lives and connection conditions of different air bars 24, the three-way electromagnetic valve 15 and the air duct 12 in the device in detail and judge, and find the problem points in the process of overhaul conveniently, the data analysis unit respectively generates and stores the past data statistics line diagrams of C t、Ch、Cl、Cb and C z, and the data statistics line diagrams can be called and checked through the touch screen 11.
The host computer 1 includes touch-sensitive screen 11, main control board 13 and air pump 14, and main control board 13 and air pump 14 set up in the inside of host computer 1, and touch-sensitive screen 11 sets up the surface at host computer 1, is connected with main control board 13, and air pump 14 is also connected with air chamber layer 22 in the pad body 2 through air duct 12 simultaneously.
As shown in fig. 2, 3 and 7, the cushion body 2 is divided into three layers, namely a static decompression layer 21, an air chamber layer 22 and a supporting layer 23, wherein the static decompression layer 21, the air chamber layer 22 and the supporting layer 23 are sequentially overlapped, the static decompression layer 21 and the supporting layer 23 are arranged on the upper layer and the lower layer, the air chamber layer 22 is arranged on the middle layer, the three layers are adhered together, and then the three layers are uniformly wrapped and sealed by a closable cloth cover, and an installation opening for connecting the air duct 12 is formed in the side surface of the cloth cover.
The supporting layer 23 is arranged at the bottom layer of the cushion body 2 and is mainly made of high-density sponge, and the supporting layer 23 is contacted with the bed board to play a supporting role.
The static decompression layer 21 is arranged on the upper layer of the cushion body 2 and is mainly made of wavy decompression cotton, and the static decompression layer 21 is contacted with a patient, so that the upper surface of the cushion body 2 can keep a complete and flat cushion body when all the air bars 24 are not inflated.
The air chamber layer 22 is arranged between the supporting layer 23 and the static decompression layer 21, the air chamber layer 22 is formed by arranging a plurality of inflatable air strips 24 in parallel along the length direction of the static decompression layer 21, and the plurality of air strips 24 are fixedly connected in series through two fixing belts 29, so that the air strips 24 are effectively prevented from sliding in the cushion body 2.
Definition: when the patient of the static pressure reducing layer 21 lies down, the direction of the height of the patient is the length direction of the static pressure reducing layer 21, and the direction from the left hand to the right hand of the patient is the width direction.
The air bars 24 are mainly divided into four types according to shapes, namely a single-chamber air bar 25, a first double-chamber air bar 26, a second double-chamber air bar 27 and a three-chamber air bar 28, wherein the single-chamber air bar 25 is a conventional air bar and is a hollow cavity as a whole, the first double-chamber air bar 26 is divided into two hollow cavities as a whole in a middle-to-middle separation mode, the second double-chamber air bar 27 is also divided into two hollow cavities as a whole in a middle-to-middle separation mode, and the difference from the first double-chamber air bar 26 is that the two separated cavities of the second double-chamber air bar 27 are kept at a 5-10cm interval at which the neck, the abdomen and the perineum or the sacrum tail of a patient are placed, the interval is kept flat and is not inflated when the two cavities of the second double-chamber air bar 27 are inflated, the neck, the abdomen and the perineum or the sacrum tail of the patient are suspended and depressurized at the moment, and pressure sores are also effectively prevented from being generated at the positions.
The three-chamber air bar 28 is divided into three hollow chambers in a spaced manner, the center and two ends of the three-chamber air bar 28 can be separately inflated and deflated, and the center part is not inflated in the prone position.
As shown in fig. 3 and 4, 21 air bars 24 are selected for introduction in this embodiment, the number of air bars 24 can be adjusted according to different specifications, in this embodiment, 1 first two-chamber air bars 26 are provided and are mainly used for supporting the head of a patient, and generally, only one first two-chamber air bar 26 is required for each specification, so that the number of the first two-chamber air bars 26 is 1 for convenience of distinguishing.
The second double-chamber air strip 27 is provided with 6 strips, and is mainly used for suspending the neck, the abdomen and the perineum or the sacral tail for decompression, so that pressure sores are avoided from being generated at the parts, and the numbers of the second double-chamber air strip 27 correspond to numbers 4 and 9-13 respectively.
The three-chamber air bar 28 is provided with 4 bars, the numbers correspond to the numbers 5-8 respectively, the central part of the three-chamber air bar 28 is not inflated in the prone position, the whole thoracic cavity is ensured to be in a suspended state in the prone position, the shoulders are supported by the number 4 second double-chamber air bar 27, the abdomen is supported by the number 9-12 second double-chamber air bar 27, and the ribs are supported by the chambers at the two ends of the number 5-8 three-chamber air bar 28, so that the decompression of the thoracic cavity of a patient is realized, and the mechanical ventilation effect of the prone position is improved.
In order to prevent pressure sores and facilitate the control system to control odd-even fluctuation alternation to realize dynamic fluctuation decompression, all the air bars 24 are divided into 3 areas according to functions, and each area can independently control odd-even fluctuation alternation, namely, can be divided into areas to fluctuate:
The first dual-chamber air bar 24, namely the first dual-chamber air bar 26 is independently a head area, and is in an inflated state all the time as being different from the traditional odd-even alternating air bar, and the softness and hardness of the air bar are changed by controlling the air pressure value (full air pressure value-half air pressure value-full air pressure value-half air pressure value) of the air bar, so that the pressure receiving area and the pressure receiving point are changed, and the air bar is divided into two chambers from the middle, so that the pressure receiving sense of the forehead is relieved when the full air pressure value is met, the contact area is increased, the experience is more comfortable, and the whole head top is always in a supporting state, and the pressure receiving position is alternately and circularly changed.
The central chambers of the No. 2-3 air bars 24 and the No. 5-8 air bars 24 are central areas, are normally and odd-even alternated in the supine position, and are not inflated in the prone position, so that when other areas are inflated and supported, the face and the chest are in a suspended state, and the mechanical ventilation effect is ensured; meanwhile, in order to ensure the suspended decompression effect, the static decompression layer 21 on the upper layer is perforated and left empty in the areas, and the cloth cover on the outer layer is left with elastic allowance in the areas.
The rest of the air bars 24 are normal regions, and are normally even and odd in the prone position or the supine position, but as the air bars 24 are not inflated in the prone position, in order to ensure that the chest cavity is not bottomed all the time in the odd and even alternation, the chambers at the two ends of the No. 4 air bars 24, the No. 9-11 air bars 24 and the No. 5-8 air bars 24 are not arranged by taking the whole air bar 24 as parity, but are respectively defined as odd chambers and even chambers at the two ends, and are arranged in a crossed manner, namely the chambers at the two ends of the No. 4-11 air bars, wherein one end is parity, and the other end is even parity.
In order to facilitate control of each chamber on each air bar 24, each chamber is connected to the air duct 12 and the three-way solenoid valve 15 in the following manner.
The air pump 14 is connected with the interface 1 of the three-way electromagnetic valve 15 through the air duct 12, the interface 2 of the three-way electromagnetic valve 15 is connected with the cavity through the air duct 12, when the air pump 14 works, the three-way electromagnetic valve 15 is electrified, at the moment, the interface 1 and the interface 2 of the three-way electromagnetic valve 15 are communicated, and the air pump 14 can charge air into the cavity through the three-way electromagnetic valve 15; when the air needs to be discharged, the three-way electromagnetic valve 15 is powered off, at the moment, the interface 2 and the interface 3 of the three-way electromagnetic valve 15 are conducted, the air of the cavity is discharged to the atmosphere through the three-way electromagnetic valve 15, the cavities of the three areas are respectively connected with the five three-way electromagnetic valves 15, namely, the head area, the central area even, the conventional area even and the conventional area even, the interfaces 1 of the five three-way electromagnetic valves can be connected in parallel, the air supply is carried out through the same air pump, and the odd-even alternate circulation air charging and discharging of the three areas are respectively controlled by controlling the on-off of the five electromagnetic valves.
As shown in fig. 1, 5 and 6, the operation of the entire device by the touch screen 11 in this embodiment is as follows:
the touch screen 11 is a conventional parameter setting interface, which is divided into three main parts including parameter setting, mode selection, working control and the like, wherein the parameter setting is that an odd-numbered chamber is arranged on the left side of the parameter setting, the air pressure is adjusted to set different maximum inflation pressures according to people with different weights, for example, less than 60kg is set to be 1 level, 60-90kg is set to be 2 level, more than 90kg is set to be 3 level, the 1-level pressure is minimum, the 3-level pressure is maximum, the air mattress is guaranteed to be used by people with different weights to be at a height which is almost equal to the maximum pressure, the inflation time is the total time from the start of inflation to the continuous maintenance of the maximum pressure, after the inflation time reaches a set value, the chamber starts to be deflated, the deflation time is the total time from the start of deflation to the start of inflation of the next cycle, and after the deflation time reaches the set value.
The right is the parameter setting of even chamber, with odd air chamber setting mode unanimity completely, pressure gear and the time of filling and deflating can be the same also different, so odd chamber even chamber aerifys gassing cycle reciprocal, incessantly change the pressure point, reduce the pressure sore and take place, the mode of fluctuation can select prone position mode or supine position mode, the supine position is normal mode, the cavity is unified undulant, prone position mode is special position mode, be used for prone position ventilation auxiliary treatment, central region mode is inoperative under this mode, specific control is implemented through the logic control of the singlechip procedure of main control board 13, the work control is used for starting or stopping the work of air mattress.
As shown in fig. 5, 6 and 7, the connection schematic diagram of the main control board 13 and the usage procedure of the present embodiment are as follows:
The main control board 13 is provided with 1 air pump interface, 5 electromagnetic valve interfaces and 2 pressure sensors, the 5 electromagnetic valve interfaces are respectively connected with 5 three-way electromagnetic valves 15, the 5 three-way electromagnetic valves 15 are respectively numbered 1-5, the first pressure sensor 16 is connected with a short-circuit port of a No.2 three-way electromagnetic valve 15 in the head area through an air duct 12, the second pressure sensor 17 is connected with an air pump 14 to a common air cavity at the 1 end of all three-way electromagnetic valves 15 through the air duct 12, the air pump interface is connected with the air pump 14 and is used for controlling the on-off and the air charging speed of the air pump 14, the electromagnetic valve interfaces are respectively connected with three-way electromagnetic valves 15 at five groups of cavities of the head area, the central area even, the regular area even and the regular area even, the pressure sensors read the pressure values of the cavities, and control the on-off states of the air pump 14 and the three-way electromagnetic valves 15 to change the working modes after reaching a set value, taking a prone position as an example:
Setting an air pressure gear, air charging time and air discharging time, selecting a fluctuation mode as a prone position mode, pressing a start key to start work, enabling an air mattress to enter a pre-charging state at the moment, enabling an air pump 14 to start work to charge a cavity through a three-way electromagnetic valve 15, enabling the three-way electromagnetic valves 1, 4 and 5 to be electrified (the electromagnetic valves 2 and 3 are always in a power-off state in the prone position, namely a central area is always not charged, and the chest and the face are in a non-pressure state), and charging the head area and a normal area; after a few minutes of pre-inflation, the pressure sensor reads that the pressure of the chamber reaches a set maximum pressure value, at the moment, all chambers of the head region and the normal region are in a full inflation state and enter into a parity interaction inflation and deflation circulation stage, the air pump enters into a pressure maintaining working mode, the three-way electromagnetic valves 1 and 4 are powered off, the chambers of the head region and the odd chambers of the normal region begin to deflate, and the circulation of the two regions are respectively and independently complemented and mutually influenced.
Head region circulation: after the head area enters the deflation, the first pressure sensor 16 can independently read the pressure value of the head area chamber, when the pressure value reaches half of the set value, the deflation is finished, the three-way electromagnetic valve 15 is electrified to reenter the inflation stage, at the moment, the value read by the first pressure sensor 16 is lower than the set maximum pressure value because the pressure of the head area is low, the air pump 14 reenters the inflation mode, and the circulation of the head area is switched to inflation and deflation only by the pressure of the first pressure sensor 16 and the second pressure sensor 17 reaching the threshold value, and is irrelevant to the inflation and deflation time set value on the parameter setting interface.
Conventional zone cycling: when the conventional area is deflated, and the conventional area is inflated, so that the pressure is evenly distributed on the conventional area even chamber; when the deflation time reaches a set value, entering a normal region odd inflation stage, starting inflation of the normal region odd, and keeping an inflation state of the normal region even, wherein the pressure is evenly distributed on all chambers of the normal region; when the inflation time reaches a set value, a conventional area even deflation stage is entered, the conventional area even starts to deflate, the conventional area even keeps an inflation state, and the pressure is evenly distributed on a chamber of the conventional area even; when the set value is rewound in the deflation time, the inflation stage of the conventional regional couple is entered, the conventional regional couple starts to inflate, the conventional regional couple maintains an inflated state, and the pressure is evenly distributed on all chambers of the conventional region; when the inflation time reaches the set value, the normal region odd deflation stage is re-entered, and the next cycle is started.
If the fluctuation mode is selected to be a supine mode, the circulation mode is similar to the prone position, except that the central area also enters the fluctuation circulation, the three-way electromagnetic valves 15 of No. 2 and No. 3 are also opened when the pre-inflation is finished, all the chambers are in a full-gas state, and the circulation actions of the central area circulation and the conventional area circulation are completely consistent, namely the central area odd and the conventional area odd are linked, and the central area even and the conventional area even are linked.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereto, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the present invention.
Claims (4)
1. A control system for an automatically actuable prone position ventilation assist therapy air mattress, the automatically actuable prone position ventilation assist therapy air mattress comprising: the novel sickbed comprises a main machine (1) and a cushion body (2), wherein the cushion body (2) is paved on a sickbed, the main machine (1) is connected with the cushion body (2) through an air duct (12), an air pump (14) connected with the air duct (12) is arranged in the main machine (1), and the air pump (14) circularly charges and discharges different chambers in different air strips (24) in the cushion body (2) through the air duct (12) and a three-way electromagnetic valve (15); the cavity formed by the plurality of air bars (24) is divided into a head area, a central area odd, a central area even, a conventional area odd and a conventional area even, the five areas are connected in parallel through five three-way electromagnetic valves (15), the same air pump (14) is used for supplying air, and the on-off power of the five three-way electromagnetic valves (15) is controlled to respectively control the odd-even alternate circulation inflation and deflation of the three areas; the cushion body (2) comprises a static decompression layer (21), an air chamber layer (22) and a supporting layer (23), wherein the static decompression layer (21), the air chamber layer (22) and the supporting layer (23) are sequentially overlapped, the static decompression layer (21) and the supporting layer (23) are arranged on the upper layer and the lower layer, and the air chamber layer (22) is arranged on the middle layer; the air chamber layer (22) comprises a plurality of air bars (24) which are arranged in parallel, the air bars (24) comprise a single-chamber air bar (25), a first double-chamber air bar (26), a second double-chamber air bar (27) and a three-chamber air bar (28), the single-chamber air bar (25) is a hollow chamber, the first double-chamber air bar (26) is divided into two hollow chambers in a whole, the second double-chamber air bar (27) is divided into two hollow chambers in a whole in a middle part, and compared with the first double-chamber air bar (26), a 5-10cm interval is reserved between the two separated chambers of the second double-chamber air bar (27), the three-chamber air bar (28) is divided into three hollow chambers in a whole in a middle part, the chambers at the middle and the two ends of the three-chamber air bar (28) can be separately and independently inflated, and the central part is not inflated in a prone position; the first double-chamber air bar (26) is provided with one single-chamber air bar (25), the second double-chamber air bar (27) and the three-chamber air bar (28) are provided with a plurality of air bars; a space is arranged at the connecting part of the two chambers of the second double-chamber air bar (27), and the space is non-inflatable;
the control system includes:
The data acquisition unit is used for acquiring pressure data of each air bar (24) in the cushion body (2) and opening and closing conditions of each three-way electromagnetic valve (15), and then sending acquired results to the data processing unit;
The pressure data respectively comprise the current pressure data, the highest pressure data, the lowest pressure data and the transition between two different pressure data of the air bar (24) in the process from starting to stopping of the device;
the opening and closing condition data of the three-way electromagnetic valve (15) comprises the opening and closing time of each interface of the three-way electromagnetic valve (15) and the opening and closing time of the three-way electromagnetic valve;
The data processing unit is used for sending related parameter instructions to the control unit according to preset parameters selected on the touch screen (11), sending operation instructions to the three-way electromagnetic valve (15) connected with the air pump (14) by the control unit, wherein the operation instructions comprise opening and closing time of the air pump (14), opening and closing time of each interface of the three-way electromagnetic valve (15) and time when each interface is kept open and closed, generating a data packet by the operation instructions, sending the data packet to the data analysis unit, marking the data packet by enabling time, and simultaneously sending each group of data under the parameters acquired by the data acquisition unit to the data analysis unit;
The data analysis unit is used for analyzing and judging corresponding parameter data in each data packet sent by the data processing unit, comparing and judging the data generated by the data acquired after the execution of the preset parameters with standard data, obtaining an abnormal value of a certain point in the corresponding data packet according to the comparison analysis judgment result, judging the importance degree of the abnormal value, and finally sending the abnormal value to a popup window of the touch screen (11) for reminding, wherein for severe abnormality, the data analysis unit sends a device stopping signal to the control unit, and the control unit sends a device stopping instruction to the device in the following data analysis mode:
A1, calling out standard data corresponding to the parameter according to the executed preset parameter, marking the current pressure data in the data packet acquired by the data acquisition unit as Y t, marking the highest pressure data as Y h, marking the lowest pressure data as Y l, marking the pressure maintenance as Y b at all times, and marking the pressure data conversion as Y z at all times;
A2, then comparing Y t、Yh、Yl、Yb and Y z with standard data B t、Bh、Bl、Bb and B z,
Normal is indicated if Y t、Yh、Yl、Yb and Y z are within the range of B t、Bh、Bl、Bb and B z;
If Y t、Yh、Yl、Yb and Y z are not within the range of B t、Bh、Bl、Bb and B z, then the difference is calculated by formulas Ct=Bt-Yt、Ch=Bh-Yh、Cl=Bl-Yl、Cb=Bb-Yb and C z=Bz-Yz;
A3, comparing the C t、Ch、Cl、Cb with the C z according to the abnormal value range to judge the abnormal degree, wherein the abnormal degree comprises slight abnormality, moderate abnormality and severe abnormality, the slight abnormality, the moderate abnormality and the severe abnormality can remind the touch screen (11) popup window of maintenance and record the abnormal value, and for the severe abnormality, the control unit sends a device operation stopping instruction to the device.
2. The control system for automatically implementing a prone position ventilation assisted therapy air mattress according to claim 1, wherein: the data analysis unit respectively generates and stores the expiration data statistics line graphs of C t、Ch、Cl、Cb and C z, and invokes and views through the touch screen (11).
3. The control system for automatically implementing a prone position ventilation assisted therapy air mattress according to claim 1, wherein: each individual chamber of the single chamber gas stick (25), the first double chamber gas stick (26), the second double chamber gas stick (27) and the three chamber gas stick (28) is communicated with the gas guide pipe (12) through the three-way electromagnetic valve (15).
4. The control system for automatically implementing a prone position ventilation assisted therapy air mattress according to claim 1, wherein: host computer (1) are including touch-sensitive screen (11), main control board (13), air pump (14), three way solenoid valve (15) and pressure sensor, touch-sensitive screen (11), air pump (14), three way solenoid valve (15) and pressure sensor are connected with main control board (13) respectively, and pressure sensor includes first pressure sensor (16) and second pressure sensor (17), first pressure sensor (16) are connected with first two cavity gas strips (26), and second pressure sensor (17) are connected with single cavity gas strip (25), second two cavity gas strips (27) and three cavity gas strips (28) through air duct (12).
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| CN111035516A (en) * | 2018-10-15 | 2020-04-21 | 亿鑫医学科技企业有限公司 | Intelligent control system of medical air cushion bed |
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