CN212166025U - Control system of multifunctional inflatable nursing bed - Google Patents
Control system of multifunctional inflatable nursing bed Download PDFInfo
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- CN212166025U CN212166025U CN202020209496.4U CN202020209496U CN212166025U CN 212166025 U CN212166025 U CN 212166025U CN 202020209496 U CN202020209496 U CN 202020209496U CN 212166025 U CN212166025 U CN 212166025U
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- 230000000474 nursing effect Effects 0.000 title claims abstract description 37
- 230000026683 transduction Effects 0.000 claims abstract description 23
- 238000010361 transduction Methods 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 238000005057 refrigeration Methods 0.000 claims abstract description 3
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 8
- 206010011985 Decubitus ulcer Diseases 0.000 description 5
- 208000004210 Pressure Ulcer Diseases 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
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- 239000004744 fabric Substances 0.000 description 1
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Abstract
The control system of the multifunctional inflatable nursing bed comprises: the device comprises a control unit, a setting unit, a display unit, a detection unit and an alarm unit. The setting unit includes: bed surface adjustment, inflation gas selection, pressure and temperature setting, air bag grouping, inflation time and deflation time setting of each air bag group, massage mode and time setting, and temperature and pressure alarm value setting; the pressure sensor and the temperature sensor are arranged in the transduction container, the air return end and the air bag; the limit detection adopts a travel switch or a light controller to be arranged on the bed frame; the input end of the control unit is connected with the setting unit and the detection unit; the output end is connected with a display unit, an alarm unit, a compression pump, an inflation solenoid valve component, an air return solenoid valve component, an air supply solenoid valve, an air discharge solenoid valve, an electric massage element, a heating element, a refrigeration element and an adjusting device. The nursing workload is reduced by the combined adjustment of the bed board and the air bag. The time setting of the body position changing is added, and the automatic body position changing of the patient is realized.
Description
Technical Field
The utility model relates to a nursing bed, more specifically the control system of multi-functional nursing bed of aerifing that says so.
Background
The nursing bed is a special appliance designed for some special people, and the functions of the nursing bed are different according to the difference of the illness state of a patient and the specific condition of the patient. The main purposes of using the nursing bed are: the patient can move on the bed conveniently, the pressure sore is prevented, and the nursing requirement is met. For patients who cannot take care of themselves, some physical activities need to be performed passively, so that the position or the pressed part of the body of the patient can be changed. The use of a nursing bed to prevent the occurrence of pressure sores is a primary objective; for patients who can do partial autonomous movement, not only the pressure sore needs to be prevented, but also some activities such as eating, reading, etc. can be performed on the bed. The nursing bed has various functions and great difference, such as body position adjustment, turning over, body pressure position change by using an air cushion, manual operation or electric control and the like. The two types of bed surfaces exist in terms of the number of bed plates and the adjustment between the bed plates, 1, the height (angle) between the bed plates cannot be adjusted, and the whole bed surface can only be adjusted (rotated); 2. the bed surface is segmented, and the bed plate consists of a plurality of plates, and the height (angle) between the bed plates can be adjusted. The slave mattress is divided into a common mattress and an air mattress; the inflatable mattress is divided into an integral air bag cushion and a combined air bag cushion.
Disclosure of Invention
For a patient who cannot take care of himself at all, the patient can be nursed by other people, the generation of pressure sores is very important to prevent, and an important measure is to change the pressed part frequently. There are generally two methods for replacing the compressed part: 1. changing body position (using bed surface change); 2. The certain part is divided into a force part and a non-force part (two groups of inflatable cushions are used for mutually inflating and deflating or a protection cushion is used).
The multifunctional inflatable nursing bed is mainly designed for patients who cannot take care of themselves at all, and simultaneously, different patient nursing requirements are comprehensively considered. The multifunctional inflatable nursing bed comprises a bed frame, a body position adjusting system, a pneumatic system, a control system and accessories. The body position adjusting system and the pneumatic system are the basis (hardware) of the multifunctional inflatable nursing bed, the multifunctional inflatable nursing bed is determined to realize what functions, the control system is the center (software) of the multifunctional inflatable nursing bed, and the functions of the multifunctional inflatable nursing bed can be completed only by controlling the control system, adjusting the body position adjusting system and the inflatable air bag of the pneumatic system and the like.
The control system of the multifunctional inflatable nursing bed comprises: the device comprises a control unit, a setting unit, a display unit, a detection unit and an alarm unit. The setting unit includes: bed surface adjustment, inflation gas selection, pressure and temperature setting, air bag grouping, air bag group inflation time and deflation time setting, massage mode and time setting, and temperature and pressure alarm value setting. The limit detection adopts a travel switch or a light controller to be installed on the bed frame. The input end of the control unit is connected with the setting unit, the detection unit, the output end of the control unit is connected with the display unit, the alarm unit, the compression pump, the inflation solenoid valve assembly, the air return solenoid valve assembly, the air supply solenoid valve, the air discharge solenoid valve, the electric massage element, the heating element, the refrigerating element and the adjusting device.
The selection of inflation gas is divided into three stages: 1. normal gas; 2. heating the gas; 3. a refrigerant gas.
The bed surface control consists of three parts: 1. the method comprises the following steps of (1) selecting the displacement of a bed plate, and arranging an upper plate and a lower plate; (2) a left plate; (3) and a right plate. 2. The bed board is lifted and lowered. 3. Resetting the bed board.
The time setting of the body position changing realizes the automatic body position changing of the patient; the bed surface control has interlocking and joint adjusting functions, and the massage is divided into pneumatic type and electric type.
The display unit includes: the pressure and the temperature set by the transduction container and the actually measured pressure and temperature; the inflation time, the deflation time and the working state set by each air bag group; massage mode, time, working state, alarm value and alarm state of temperature and pressure, etc.
The detection unit includes: and detecting pressure, temperature and current and limiting.
The alarm unit includes: pressure, temperature, sound and light alarm indication of abnormal lifting of the bed plate.
The pressure sensor and the temperature sensor are arranged in the transduction container, the air return end and the air bag.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of the present invention.
In the figure: 1. a control unit; 2. a setting unit; 3. a detection unit; 4. a display unit; 5. an alarm unit; 6. a compression pump; 7. a gas-filled solenoid valve assembly; 8. a return solenoid valve assembly; 9. a gas replenishing electromagnetic valve; 10. an air bleed solenoid valve; 11. a heating element; 12. a refrigeration element; 13. An adjustment device; 14. an electric massage element.
Detailed Description
The nursing bed for the patient is only used for a short time, and the nursing bed for the patient needs a long time; some patients can not move autonomously at all, and some patients can move partially autonomously. The nursing bed is used in a hospital, the external condition is better, the using object is uncertain, and the needed functions are more; the nursing bed is used at home, the condition is limited, the use object is determined, and the needed functions are less. The nursing bed is used as an appliance for nursing patients and is suitable for different requirements of different patients, so the multifunctional inflatable nursing bed is designed to have multiple different functions and can be selectively combined according to requirements in order to meet different requirements of different patients.
The control system of the multifunctional inflatable nursing bed controls the working states of bed surface activity, air bag grouping, air bag group inflation and deflation time, air pressure, air temperature, air flow and the like, and comprises a control unit, a setting unit, a display unit, a detection unit and an alarm unit.
First, a control unit.
The control unit is the core of the control part, receives the information of the setting unit, analyzes, processes and controls the work of each corresponding component according to the actual data detected by the detection unit, and displays the data in the display unit, if the detection shows that the abnormal condition can send out an alarm, and performs corresponding processing.
The control unit adopts a single chip microcomputer as an analysis, processing and control center, the input end of the control unit is connected with the setting unit and the detection unit, and the output end of the control unit is connected with the display unit, the alarm unit, the heating element, the refrigerating element, the air pump, the inflation electromagnetic valve component, the exhaust electromagnetic valve, the air return electromagnetic valve component, the air supply electromagnetic valve, the adjusting device and the electric massage component. The control unit receives the related information sent by the setting unit and the detection unit from the input end; and according to the set information, comparing the information detected by the detection unit, analyzing and comparing the information, making related instructions for the heating element, the refrigerating element, the air pump, the inflation solenoid valve component, the exhaust solenoid valve, the air return solenoid valve component, the air supply solenoid valve, the adjusting device and the electric massage element from the output end, controlling the working states of the heating element, the refrigerating element, the air pump, the inflation solenoid valve component, the exhaust solenoid valve, the air return solenoid valve component, the air supply solenoid valve, the adjusting device and the electric massage element, simultaneously giving related signals to the display unit, displaying the related information by the display unit, and giving corresponding alarms to the alarm unit if the abnormality occurs.
Second, setting unit
The setting unit includes: bed surface adjustment, inflation gas selection, pressure and temperature setting, air bag grouping and inflation time and deflation time setting of each air bag group, massage mode and time setting, temperature and pressure alarm value setting and body position changing time setting. The setting unit can be directly connected with the control unit (wired) or can be connected with the control unit by adopting a remote control (wireless).
Selection and regulation of bed surface displacement
Some functions of the multifunctional inflatable nursing bed are completed by utilizing the mutual displacement among the bed plates to adjust the bed surfaces, the displacement of the bed plates is adjusted to enable a patient to lift the head and the back, stretch the legs, turn over the left side and turn over the right side, and besides manual operation, a setting unit is used for selecting and controlling a unit to control the operation of the adjusting device. The bed surface control in the setting unit consists of three parts: 1. the method comprises the following steps of (1) selecting the displacement of a bed plate, and arranging an upper plate and a lower plate; (2) a left plate; (3) and a right plate. 2. The bed board is lifted and lowered. 3. Resetting the bed board.
Because the eight combined movable bed boards have displacements in two directions of the left upper board, the left lower board, the right upper board and the right lower board, when in actual use, a patient can not simultaneously carry out the lifting of the head and the back and the stretching of the legs with the left side overturning and the right side overturning, and the left side overturning and the right side overturning can not simultaneously carry out the lifting of the head and the back and the stretching of the legs. When the lifting of the head and the back and the stretching of the legs are selected, the adjusting devices of the left upper plate and the right upper plate, and the adjusting devices of the left lower plate and the right lower plate can work simultaneously, and the adjusting devices of the left middle plate and the right middle plate are locked to prohibit work; when the left side or the right side is turned over, the adjusting device of the left middle plate or the right middle plate can work, and meanwhile, the adjusting devices of the right middle plate or the left middle plate are locked when the adjusting device of the right middle plate or the left middle plate works, so that the work is forbidden, misoperation is prevented, and the injury is brought to the patient. Therefore, the interlocking and joint adjustment functions are set during bed surface control, namely, three keys are implemented on an upper plate (a left upper plate and a right upper plate) and a lower plate (a left lower plate and a right lower plate), a left plate (a left upper plate, a left middle plate and a left lower plate) and a right plate (a right upper plate, a right middle plate and a right lower plate) in bed plate displacement selection, so that only one key can be selected, and the other two keys are locked; the upper plate (left upper plate, right upper plate) and the lower plate (left lower plate, right lower plate) can be intermodulated by two keys. The 'reset of bed surface' key is adopted, the bed surface is restored to the original state (the bed surface is in the horizontal state) after the 'reset of bed surface' key is pressed, and then the next operation (the bed plate displacement selection is changed) is carried out. The up and down keys share a common key, and the number of keys is reduced. If the linkage function (firstly resetting and then switching) is applied when the bed plate displacement selection key is switched, the reset key of the bed surface is not needed to be arranged, and the control unit is responsible for processing. When the lifting of the head back or the stretching of the legs is selected, the adjusting devices arranged on the left upper plate and the left middle plate, the right upper plate and the right middle plate, the left lower plate and the right lower plate work, when the lifting of the head back or the stretching of the legs is selected, the synchronous work of two sets of adjusting devices can be completed, a joint adjusting function is adopted, namely, the two sets of adjusting devices for controlling the displacement of the upper plate or the lower plate are synchronously started and stopped together, and the displacement speed and the distance of the upper plate or the lower plate are ensured to be consistent.
When the upper plate, the lower plate, the left plate and the right plate are lifted, the selection key is pressed down, then the lifting key or the descending key is pressed, the corresponding bed plate is displaced, and the lifting key or the descending key is released, so that the bed plate stops displacing; when the bed board moves to the set maximum distance (starting point and end point), the limiting device is triggered to work, a signal is sent to the control unit after the limiting device works, and the control unit stops the movement of the bed board. The time setting of the body position changing is added, and the automatic body position changing of the patient is realized.
(II) selection of inflation gas
The selection of inflation gas is divided into three stages: 1. normal gas; 2. heating the gas; 3. a refrigerant gas. When normal gas is selected, the heating element, the refrigerating element and the temperature sensor do not work, and only the pressure sensor plays a detection role. In the process of inflating the air bag group, the inflation electromagnetic valve is powered on and opened, the air return electromagnetic valve is powered off and closed, the air bag is inflated, and the pressure in the air bag is kept equal to the pressure in the energy conversion container; the air bag group is in the gassing process, the return air solenoid valve is electrified and opened, the inflation solenoid valve is deenergized and closed, after the return air solenoid valve is electrified, the return air solenoid valve reaches a fixed value (difference value with the maximum pressure value during inflation) within an original set (fixed) time or the pressure within the air bag, the return air solenoid valve is deenergized and closed, the gas within the air bag is not exhausted, certain pressure is maintained, the volume of inflating at each time is reduced, the pressure is lower than the pressure within the inflation air bag, a certain pressure (height) difference exists between the inflated air bag group and the deflated air bag group, the air bag group with high pressure (height) is a stress part of a patient, and the air bag with low pressure is a.
When the heating gas or the refrigerating gas is selected, the heating element or the refrigerating element, the temperature sensor and the pressure sensor work, the inflation electromagnetic valve and the air return electromagnetic valve are powered on and opened in the inflation process of the air bag group, the opening of the inflation electromagnetic valve is larger than the opening of the air return electromagnetic valve at the initial inflation, the air inlet of the air bag is larger than the air outlet, the air bag is inflated, the pressure in the air bag is increased, the temperature is increased or reduced, when the pressure in the air bag is equal to the pressure in the transduction container, the opening of the inflation electromagnetic valve is the same as the opening of the air return electromagnetic valve, the air inlet and the air outlet. The detection value of the temperature sensor at the air return end is compared with the set temperature, the actual openings of the inflation electromagnetic valve and the air return electromagnetic valve are adjusted, the rotating speed of the air pump is adjusted, and the pressure in the air bag and the temperature difference between the air inlet end and the air outlet end of the air bag are ensured to be within the allowable value. When the air bag group is deflated initially, the opening of the air return electromagnetic valve is larger than the opening of the air deflation electromagnetic valve, the air outlet of the air bag is larger than the air inlet of the air bag, and the pressure in the air bag is reduced. After the original set (fixed) time or the air bag reaches a fixed value (the difference value with the maximum pressure value during inflation), the opening of the air return electromagnetic valve is equal to the opening of the air discharge electromagnetic valve, so that the pressure and the temperature in the air bag are kept stable.
(III) control and adjustment of air mattress
1. Setting and adjusting pressure and temperature. The inflatable mattress is a part designed and adopted for changing the actual pressed part of a patient, can provide the temperature suitable for the inflatable mattress for the patient according to the climate and by combining the condition of the patient, and adopts gas with adjustable temperature (heating or refrigerating) to inflate the air bag; the pressure of the air inflated by the air mattress is set according to the weight of the patient. In actual use, the requirements on the pressure and the temperature of the gas in the air bag in the air mattress are not too high, certain errors can be allowed, and the highest value when the air bag is stably inflated can be represented by the pressure in the transduction container. The gas pressure and temperature in the setting unit are the pressure and temperature of the gas in the transduction container, and when the pressure of the gas in the transduction container reaches a set value, the control unit stops the gas pump from sucking the gas from the outside and feeding the gas into the transduction container; when the gas pressure in the transduction container is lower than a set value, the control unit starts the air pump and the air supply electromagnetic valve to work so as to supplement gas for the transduction container; when the gas pressure in the transduction container is higher than a set value, the control unit starts the work of the air-bleed electromagnetic valve, and redundant gas is discharged from the transduction container; ensuring constant gas pressure in the transduction container. When the temperature of the gas in the transduction container reaches a set value, the control unit stops the work of the heating (refrigerating) element; when the gas temperature in the transduction container is lower (higher) than a set value, the control unit starts the work of the heating (refrigerating) element to ensure the stability of the gas temperature in the transduction container.
2. And (4) setting the air bag groups and the inflation time and the deflation time of each air bag group. In order to replace the actual pressed part and the non-pressed part of the patient in a timed and positioned way, the air bag is combined in different ways and is inflated and deflated at different times, so that the pressure sore of the patient is prevented. The air mattress of the multifunctional inflatable nursing bed is composed of a plurality of air bags, the air bags can be divided into a plurality of groups through arrangement, the air bag groups can be completed by a control unit and can also be determined during the production of the air mattress, each air bag group is respectively controlled by an inflating (air inlet) electromagnetic valve and an air return (air outlet) electromagnetic valve, a temperature sensor is arranged at the front end or the rear end of the air return electromagnetic valve to measure the temperature of the return air, and the control unit compares the temperature with the set air temperature to correspondingly adjust the air pump, the inflating electromagnetic valve and the air return electromagnetic valve so as to ensure the temperature balance of the whole mattress. When the temperature of the air return end is obviously lower than the temperature set by the air inlet end, the rotating speed of the air pump is increased, the opening areas of the inflation electromagnetic valve and the air return electromagnetic valve are enlarged, the gas circulation speed in the air bag is increased, and the temperature of the air return end is increased; along with the temperature rise of the air return end, the control unit gradually reduces the rotating speed of the air pump, reduces the opening areas of the inflation electromagnetic valve and the air return electromagnetic valve and reduces the air circulation speed in the air bag; when the temperature is basically the same as the set temperature (certain error is certainly existed), the rotating speed of the air pump and the opening areas of the inflation electromagnetic valve and the air return electromagnetic valve are stabilized, the air circulation speed in the air bag is kept, and the temperature of the air return end is maintained. After the air bag groups are determined, the inflation time and the deflation time can be respectively set for each air bag group according to the actual situation of the patient, and the inflation time and the deflation time between each air bag group can not coincide or can be overlapped to a certain extent. And a pressure sensor and a temperature sensor are arranged in each group of air bags.
(IV) massage mode selection and time setting
The massage is divided into a pneumatic type and an electric type, the pneumatic massage is realized by rapidly inflating and deflating the air bag without adding additional elements; the electric massage is that some electric massage elements (massage blanket as accessories) are arranged in a rectangular soft material (cloth blanket) and are placed at the corresponding part of a patient when in use. When the patient needs to be massaged, the massage mode (electric or pneumatic) is selected, the massage time is set, the massage starts to work, and the massage stops after the set working time is reached. If the electric massage is adopted, the massage blanket should be taken out in time.
Third, display unit
The method comprises the following steps of (1) adopting a display screen, wherein the set pressure and temperature and the actual pressure and temperature can be displayed in the display screen; the inflation time, the deflation time and the working state set by each air bag group; massage mode, time, working state, alarm value and alarm state of temperature and pressure, etc.
Fourth, detecting element
The detection unit is a necessary component for ensuring normal operation of the equipment, and comprises pressure, temperature and current and limit detection. A pressure sensor for controlling the air pump to work is arranged in the transduction container and used for detecting the pressure value in the air bag; one pressure sensor for comparison is arranged in each group of air bags. A temperature sensor is arranged in the transduction container and used for detecting the actual temperature of the gas in the transduction container, and a control unit controls the work of the heating element and the refrigerating element and adjusts the actual temperature of the gas in the transduction container; and a temperature sensor is arranged at the air return end of each air bag group and detects the temperature of air at the air return end, so that the control unit can control the rotating speed of the air pump and the openings of the inflation solenoid valve and the air return solenoid valve to ensure the air return temperature. The current sensor detects the actual current of the electrical appliance component in real time to prevent overcurrent. The limiting device limits the displacement range of the bed plate, prevents the bed plate from exceeding the allowable displacement range, and when the limiting device works, the control unit stops the displacement of the related bed plate.
Fifth, alarm unit
The alarm unit adopts sound and light alarm indication which can be combined into the display unit. When the pressure and the temperature of the gas in the transduction container exceed the set pressure and temperature and the lifting of the bed plate is abnormal (over-current and over-position), corresponding alarm is sent out, and the control unit stops working of the related units.
Claims (8)
1. A control system of a multifunctional inflatable nursing bed is characterized by comprising: the device comprises a control unit, a setting unit, a display unit, a detection unit and an alarm unit; the setting unit includes: bed surface adjustment, inflation gas selection, pressure and temperature setting, air bag grouping, inflation time and deflation time setting of each air bag group, massage mode and time setting, and temperature and pressure alarm value setting; the pressure sensor and the temperature sensor are arranged in the transduction container, the air return end and the air bag; the limit detection adopts a travel switch or a light controller to be arranged on the bed frame; the input end of the control unit is connected with the setting unit and the detection unit; the output end is connected with a display unit, an alarm unit, a compression pump, an inflation solenoid valve component, an air return solenoid valve component, an air supply solenoid valve, an air discharge solenoid valve, an electric massage element, a heating element, a refrigeration element and an adjusting device.
2. The control system of the multifunctional inflatable care bed of claim 1, wherein the selection of the inflation gas comprises: normal gas, heating gas, refrigerating gas.
3. The control system of the multifunctional inflatable nursing bed of claim 1, wherein the bed surface control comprises: the displacement of the bed board is selected, the bed board is ascended and descended, and the bed board is reset.
4. The control system of the multifunctional inflatable nursing bed as claimed in claim 1, wherein the bed surface control is provided with interlocking and joint adjusting functions.
5. The control system of the multifunctional inflatable nursing bed of claim 1, wherein the massage is divided into pneumatic and electric.
6. The control system of the multifunctional inflatable nursing bed of claim 1, wherein the display unit comprises: the pressure and the temperature set by the transduction container and the actually measured pressure and temperature; the inflation time, the deflation time and the working state set by each air bag group; massage mode, time, working state, alarm value of temperature and pressure, and alarm state.
7. The control system of the multifunctional inflatable nursing bed of claim 1, wherein the detecting unit comprises: and detecting pressure, temperature and current and limiting.
8. The control system of the multifunctional inflatable nursing bed of claim 1, wherein the alarm unit comprises: pressure, temperature, sound and light alarm indication of abnormal lifting of the bed plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020209496.4U CN212166025U (en) | 2020-02-18 | 2020-02-18 | Control system of multifunctional inflatable nursing bed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020209496.4U CN212166025U (en) | 2020-02-18 | 2020-02-18 | Control system of multifunctional inflatable nursing bed |
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| CN202020209496.4U Expired - Fee Related CN212166025U (en) | 2020-02-18 | 2020-02-18 | Control system of multifunctional inflatable nursing bed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111150579A (en) * | 2020-02-18 | 2020-05-15 | 扬州大学附属医院 | Control system of multifunctional inflatable nursing bed |
| CN114795785A (en) * | 2022-05-19 | 2022-07-29 | 杭州正大医疗器械有限公司 | Physical rehabilitation equipment with multiple air bags for inclined vibration physiotherapy couch |
-
2020
- 2020-02-18 CN CN202020209496.4U patent/CN212166025U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111150579A (en) * | 2020-02-18 | 2020-05-15 | 扬州大学附属医院 | Control system of multifunctional inflatable nursing bed |
| CN111150579B (en) * | 2020-02-18 | 2024-11-22 | 扬州大学附属医院 | Control system of multifunctional inflatable nursing bed |
| CN114795785A (en) * | 2022-05-19 | 2022-07-29 | 杭州正大医疗器械有限公司 | Physical rehabilitation equipment with multiple air bags for inclined vibration physiotherapy couch |
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Granted publication date: 20201218 Termination date: 20220218 |