TWI822609B - Intelligent detection air bed - Google Patents

Abstract

An intelligent detection air mattress includes a mattress mechanism, an induction reading device, an air pump device, and a control device. The mattress mechanism includes a plurality of air bags connected to an air pump device. The inductive reading device includes a plurality of reading coils respectively provided on the airbags, and a reader signal connected to the reading coils. The reader analyzes the received signal strength value of the inductive signal received by each reading coil. The control device can control the air valve corresponding to the reading coil whose received signal strength value is greater than the predetermined threshold to switch to the deflation state, and control the remaining air valves to switch to the inflation state. Through the design of this intelligent detection air mattress, it can cooperate with the sensor chip installed on the patient's body to automatically control the air bag corresponding to the wound to change to a pressure release state, thereby avoiding pressure on the wound, and can also be used to prevent the occurrence of pressure trauma.

Description

Intelligent detection air bed

The present invention relates to a bed, in particular to an air mattress.

Pressure injuries to the skin or subcutaneous tissue are local injuries caused by the skin or subcutaneous tissue being subjected to pressure or shear force for a long time. In order to prevent long-term bedridden patients from suffering from pressure injuries, bedridden patients must be assisted to turn over at predetermined intervals. Currently, Care strategies for preventing pressure injuries include turning over every 2 hours, changing postures, using pressure-reducing devices, and correct positioning, etc. Therefore, regular turning over is a daily routine in clinical care. However, the current nurse-to-patient ratio is too high. The busy nursing work results in a relatively shortened time for nursing staff to care for patients, and the problem of forgetting to perform turn-over care may occur due to busy work.

In addition, for patients who already have pressure injuries, how to avoid continued pressure on the wounds during care has always been the most troublesome issue during care. The current practice is to install some pressure-reducing devices on the bed, such as pressure-reducing pads, to prevent pressure on the wound. However, the current method is quite inconvenient in operation and use. Different shapes of pressure reducing devices must be used according to various lying positions, and attempts must be made to adjust the position and angle to avoid causing discomfort to the patient while lying down.

Therefore, an object of the present invention is to provide an intelligent detection air bed that can improve at least one shortcoming of the prior art.

Therefore, the intelligent detection air mattress of the present invention can be used with a sensor chip placed on the affected area of a patient. The intelligent detection air mattress includes a mattress mechanism, a sensor reading device, an air pump device, and A control device.

The mattress mechanism includes a plurality of air bags arranged side by side. Each airbag can change between a supporting state where it is inflated and pushed upward, and a deflated state where the pressure is released. The inductive reading device includes a plurality of reading coils respectively provided on the airbags, and a reader whose signals are connected to the reading coils. The reader can inductively receive the induction signal emitted by the induction chip through each reading coil, and can analyze each received induction signal to obtain a received signal strength value. The air pump device includes a plurality of air valves that are respectively connected to the air bags, and a high-pressure air source connected to the air valves. Each air valve can be controlled between a deflation state that allows the corresponding air bag to deflate and change to the decompression state, and an inflation state that allows the corresponding air bag to be inflated by the high-pressure air source to the push-up state. switch.

The control device can receive and analyze the received signal strength values received by the reader through the reading coils, and control the airbag corresponding to each reading coil corresponding to the received signal strength value greater than a predetermined threshold. The air valve of the air bag is switched to the deflation state, and the corresponding air valves of the other air bags are controlled to be switched to the inflation state.

The effect of the present invention is that through the design of the mattress mechanism, the induction reading device, the air pump device and the control device, the intelligent detection air mattress of the present invention can cooperate with the sensor chip installed on the patient to automatically sense and determine Whether the patient's wound is against the bed surface, each air bag corresponding to the wound position is automatically controlled to change to a pressure release state to avoid pressure on the wound, and can also be used to prevent the occurrence of pressure trauma.

Referring to Figures 1, 2, and 3, one embodiment of the intelligent detection air bed 200 of the present invention is suitable for a patient 900 to lie on, and is suitable for being equipped with a sensor chip placed outside a wound dressing of the patient 900 800 used. In this embodiment, the sensing chip 800 is an RFID chip.

The intelligent detection air bed 200 includes a mattress mechanism 3, an induction reading device 4 and an air pump device 5 installed on the mattress mechanism 3, and a signal connecting the induction reading device 4 and the air pump device 5. Control device 6.

Referring to Figures 1, 3, and 4, the mattress mechanism 3 includes a supporting bottom layer 31, an annular bedside structure 32 extending upward from the periphery of the supporting bottom layer 31, and a bedside structure 32 arranged on the top surface of the supporting bottom layer 31 and connected to The partition structure 33 on the inner peripheral side of the bedside structure 32 and a plurality of airbags 34 arranged above the supporting bottom layer 31 . The support bottom layer 31, the bedside structure 32 and the partition structure 33 cooperate to define a plurality of limiting spaces 30 with openings facing upward. The limiting spaces 30 are formed along a horizontally orthogonal first direction and a second direction. Directional vertical and horizontal matrix arrangement. The bedside structure 32 is made of multiple layers of fabrics and fillers with elastic cushioning effects. The fillers are not limited to cotton or foam. Since there are many types of the bedside structure 32 and it is not the focus of the improvement of the present invention, it will not be described in detail, and the implementation is not limited to the above-mentioned structural form.

The airbags 34 are respectively positioned in the limiting spaces 30 and protrude upwards out of the limiting spaces 30 to define a bed surface for the patient 900 to lie on. Each air bag 34 can change between a supporting state in which it is inflated to generate an upward supporting force, and a release state in which it is deflated and collapses.

Referring to Figures 1, 2, and 4, the inductive reading device 4 includes a driving coil 41, a plurality of reading coils 42 respectively provided at the tops of the air bags 34, and a signal connecting the driving coil 41 and the reading coils. Reader 43 of coil 42. The reader 43 can be driven to wirelessly send a driving signal to trigger the sensing chip 800 to return a sensing signal through the driving coil 41 , and the reader 43 can receive the sensing signal through each reading coil 42 . The induction signal is sensed, and a received signal strength value of the induction signal received by each reading coil 42 is analyzed. When the received signal strength value is greater than a predetermined threshold, it means that the distance between the reading coil 42 and the sensing chip 800 is smaller than a predetermined value, such as but not limited to less than 0.5 cm, 1 cm or 5 cm. Since the sensor chip 800 is an RFID chip, the sensor reading device 4 drives the sensor chip 800 to generate the sensor signal through RFID sensor technology, and receives the sensor signal through RFID sensor technology.

In this embodiment, the driving coil 41 and the reader 43 are integrated in the control device 6, but the implementation is not limited to this.

The air pump device 5 includes a plurality of air valves 51 that are respectively connected to the air bags 34 and a high-pressure air source 52 that is connected to the air valves 51 . Each air valve 51 can be driven to an inflation state so that the corresponding air bag 34 can be inflated by the high-pressure air source 52 to change to the push-up state, and to make the corresponding air bag 34 deflate to the pressure release state. Switch between the deflated state of the state. The high-pressure gas source 52 may be a gas pump that can be controlled to start to generate high-pressure gas, or a gas storage device that stores high-pressure gas.

The control device 6 includes a timing unit 61 , a reminder unit 62 , and a control unit 63 . The reminder unit 62 can be driven by the control unit 63 to send a reminder message. The reminder message can be a perceivable message type such as sound, image, and/or light, or can be wirelessly sent to a nursing station or a nursing push button. Electronic messages from computer devices in the vehicle.

The control unit 63 is built-in with an affected area decompression mode, a turning reminder mode and a massage mode that can be activated by operation, and is also provided with a wound prevention setting that can be selectively activated for the massage mode.

Referring to Figures 2, 3, and 4, when the affected area decompression mode is activated, the control unit 63 will control the activation of the reader 43, so that the reader 43 controls the drive coil 41 to send the drive every predetermined time interval. The signal is, for example but not limited to, every 30 seconds, 1 minute, 10 minutes, 30 minutes, etc., and the induction signal returned by the induction chip 800 is received through the reading coils 42 . The control unit 63 will receive and analyze the received signal strength values generated by the reader 43 corresponding to the reading coils 42, and compare each reading coil whose received signal strength value is greater than the predetermined threshold. 42, and control the air valve 51 corresponding to the air bag 34 corresponding to each reading coil 42 to switch to the deflation state, and control the remaining air valves 51 to switch to the inflation state. With this design, each air bag 34 within a predetermined distance adjacent to the wound of the patient 900 can be changed to the pressure release state, while the remaining air bags 34 can be inflated and maintained in a supporting state that can support the body of the patient 900. This can significantly reduce the pressure on the wound.

The control unit 63 is operable to establish a reminder time setting when the turning over reminder mode is activated. The reminder time setting may be a reminder once every predetermined time interval, such as but not limited to once every 2 hours, or a reminder once when the timer reaches a specific time point, such as but not limited to the timer until 8 a.m. , 10 a.m.…6 p.m. and other time points. The control unit 63 will control the reminder unit 62 to send the reminder message when the timing unit 61 reaches the time condition corresponding to the reminder time setting, thereby reminding the caregiver to perform turning operation on the patient 900 .

Referring to Figures 2, 3, and 5, when the massage mode is activated, the control unit 63 can be operated to select whether to activate the wound prevention setting. When the wound prevention setting is selected to be activated, the control unit 63 will control the activation of the reader 43 and analyze and compare the airbag 34 corresponding to each reading coil 42 whose received signal strength value is greater than the predetermined threshold. Corresponding to the air valve 51. Then, the control unit 63 will control the remaining air valves 51 to asynchronously switch between the deflation state and the inflation state without controlling all the air valves 51 that are analyzed and compared according to the received signal strength value to switch to the inflation state. The corresponding airbags 34 are alternately switched between the supporting state and the pressure releasing state.

By alternately driving the air bags 34 to switch between the pushing state and the pressure releasing state, the air bags 34 can repeatedly push the patient 900 upward, thereby producing a massage effect in conjunction. When the control unit 63 is not operated to activate the wound prevention setting, all air valves 51 are controlled to asynchronously switch alternately between the deflation state and the inflation state, so that all air bags 34 are alternately between the support state and the inflation state. The pressure relief state changes.

In this embodiment, the airbags 34 are arranged in multiple rows along the first direction and in multiple columns along the second direction. During implementation, the control unit 63 can be in a column unit to control the airbags 34 along the second direction. The air valves 51 corresponding to the air bags 34 in the odd-numbered rows are switched to the inflation state, and the air valves 51 corresponding to the air bags 34 in the even-numbered rows are controlled to switch to the deflation state, and then the odd-numbered rows and the even-numbered rows are controlled to The air valves 51 in the column are switched to another state; or the air valves 51 corresponding to the air bags 34 in the even-numbered rows are first controlled to switch to the inflation state along the first direction, and the air bags in the odd-numbered rows are controlled. 34, the corresponding air valves 51 are switched to the deflated state, and then the air valves 51 of the even-numbered rows and odd-numbered rows are controlled to switch to another state. By driving the air valves 51 to continuously switch alternately between the inflation state and the deflation state, the air bags 34 can cooperate to produce a massage action.

Since there are many control methods for controlling the air bags 34 to asynchronously change alternately between the support state and the pressure release state to generate a massage action, during implementation, the control unit 63 controls the air valves 51 in the massage mode. The control method for alternately switching between the deflated state and the inflated state is not limited to the above embodiment, as long as the air bags 34 can be repeatedly changed between the pushing state and the pressure releasing state to produce a massage action.

Referring to Figures 2, 3, and 4, when the intelligent detection air mattress 200 of the present invention is used, a sensor chip 800 can be provided on the dressing gauze outside each wound of the patient 900, and the patient 900 can also be used to avoid pressure injuries when the patient 900 needs to Each body part is provided with a sensing chip 800.

When the control unit 63 activates the affected area decompression mode, it will first control the air valves 51 to switch to the inflation state, so that the air bags 34 are inflated by the high-pressure air source 52 and in the support state. Then, the patient 900 can be allowed to lie on the bed formed by the air bags 34 . At this time, the control unit 63 will control the activation of the induction reading device 4, so that the induction reading device 4 drives each induction chip 800 to return the induction signal regularly, and obtains each induction signal of each reading coil 42. The received signal strength value of each induced signal is received. Then, the control unit 63 will correspondingly control the air valves 51 to switch to the deflated state or the inflated state according to the received signal intensity values of the induction signals received by the reading coils 42 each time, so as to make the adjacent air valves 51 switch to the deflated state or the inflated state. The airbags 34 of each sensing chip 800 change to the pressure relief state to avoid pressure on the patient's 900 wound or the area where pressure trauma is to be avoided.

To sum up, through the structural design of the air bags 34 of the mattress mechanism 3, the reading coils 42 provided on the tops of the air bags 34 can be used to inductively receive the induction signals generated by each of the induction chips 800. And the control unit 63 can analyze the received signal strength value and control the air valve 51 corresponding to each air bag 34 adjacent to each of the sensor chips 800 to switch to a deflated state, so that the present invention can intelligently detect the air mattress. 200 is used for when the patient 900 with a wound is lying down, it can cooperate with the setting of the sensor chip 800 to automatically sense and determine whether the wound of the patient 900 is leaning against the bed surface, and which position of the bed surface it is leaning against. , and then automatically controls each air bag 34 corresponding to the wound position to change to the pressure release state to avoid pressure on the wound, avoid worsening of pressure on the wound, and also prevent the occurrence of pressure trauma.

In addition, the functional design of the turning reminder mode and the massage mode of the control device 6 can be further used to automatically remind the caregiver to turn over the patient 900 lying on the mattress mechanism 3 at regular intervals, and to perform the turning operation on the patient 900 lying on the mattress mechanism 3. The patient 900 massages his limbs against the mattress mechanism 3 to promote blood circulation and reduce the incidence of pressure injuries. Therefore, the intelligent detection air mattress 200 of the present invention is indeed a very innovative and practical creation, and therefore can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention. They cannot be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the contents of the patent specification are still within the scope of the present invention. within the scope covered by the patent of this invention.

200:Intelligent detection air mattress 3: Mattress mechanism 30:Limited space 31: Support the bottom layer 32: Bed surround structure 33:Separation structure 34:Air bag 4: Induction reading device 41: Drive coil 42:Read coil 43:Reader 5: Air pump device 51:Air valve 52: High pressure air source 6:Control device 61: Timing unit 62: Reminder unit 63:Control unit 800: Sensor chip 900:Patient

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view schematically illustrating the structure of an embodiment of the intelligent detection air bed of the present invention; Figure 2 is a functional block diagram illustrating the functional architecture of this embodiment; Figure 3 is a side view schematically illustrating the embodiment when a patient is lying down; Figure 4 is an incomplete side cross-sectional view illustrating the structure of this embodiment; and FIG. 5 is a schematic diagram of state changes, schematically illustrating how multiple airbags in this embodiment alternately change between a push-up state and a pressure-release state.

200:Intelligent detection air mattress

3: Mattress mechanism

30:Limited space

31: Support the bottom layer

32: Bed surround structure

33:Separation structure

34:Air bag

42:Read coil

5: Air pump device

51:Air valve

52: High pressure air source

Claims (8)

An intelligent detection air bed that can be used with a sensor chip placed on the affected area of a patient and includes: A mattress mechanism includes a plurality of air bags arranged side by side. Each air bag can change between a supporting state where it is inflated and pushed upward, and a deflated state where the pressure is released; An inductive reading device includes a plurality of reading coils respectively provided in the airbags, and a reader whose signals are connected to the reading coils. The reader can receive the induction through each reading coil. The chip emits an induction signal, and can analyze the received induction signal to obtain a received signal strength value; An air pump device includes a plurality of air valves that are respectively connected to the air bags, and a high-pressure air source connected to the air valves. Each air valve can be controlled to deflate the corresponding air bag in a Switching between a deflation state that changes to the pressure release state and an inflation state that allows the corresponding air bag to be inflated by the high-pressure air source to the push-up state; and A control device that can receive and analyze the received signal strength values received by the reader through the reading coils, and control the airbag corresponding to each reading coil where the received signal strength value is greater than a predetermined threshold. The corresponding air valve is switched to the deflation state, and the corresponding air valves of the other air bags are controlled to be switched to the inflation state. The intelligent detection air mattress according to claim 1, wherein the mattress mechanism further includes a support bottom layer, an annular bedside structure surrounding and connected to the periphery of the support bottom layer, and a bedside structure disposed between the support bottom layer and the support bottom layer. As for the separation structure between the bedside structures, the supporting bottom layer, the bedside structure and the separation structure cooperate to define a plurality of limiting spaces for respectively installing the airbags. The intelligent detection air bed as claimed in claim 1, wherein the inductive reading device further includes a drive coil connected to the reader via a signal, and the reader wirelessly sends a signal via the drive coil at predetermined intervals. A driving signal used to trigger the sensing chip to return a sensing signal. The intelligent detection air mattress according to claim 1, wherein the control device includes a timing unit, a reminder unit, and a control unit, the control unit has a built-in affected part decompression mode that can be switched and activated, and A turning reminder mode that can be operated to set a reminder time setting. When switching to the affected part decompression mode, the control unit will control the air valves to switch to The deflated state or the inflated state will drive the reminder unit to send a reminder message when it is switched to the stand-up reminder mode and the timing unit reaches the time condition set by the reminder time. The intelligent detection air mattress as described in claim 4, wherein the control unit also has a built-in massage mode that can be activated by operation. When the massage mode is activated by operation, the air valves are controlled asynchronously in the air mattress. The deflation state and the inflation state are switched, so that the air bags alternately change between the push-up state and the pressure-relief state. The intelligent detection air mattress as described in claim 5, wherein the control unit is also operable to select whether to activate a wound prevention setting for the massage mode, and the control unit will be activated when the massage mode is activated and selected to activate the When setting for wound prevention, the air valve corresponding to the air bag corresponding to each reading coil whose received signal strength value is greater than the predetermined threshold is not controlled to switch to the inflation state. The intelligent detection air mattress as described in claim 1, wherein the control device has a built-in massage mode that can be activated by an operation, and when the massage mode is activated by an operation, the air valves are controlled asynchronously in the Switching between the deflated state and the inflated state causes the airbags to alternately change between the supporting state and the pressure releasing state. The intelligent detection air bed as claimed in claim 7, wherein the control device is also operable to select whether to activate a wound prevention setting for the massage mode, and the control device will be activated when the massage mode is activated and is selected to activate the When setting for wound prevention, the air valve corresponding to the air bag corresponding to each reading coil whose received signal strength value is greater than the predetermined threshold is not controlled to switch to the inflation state.

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