CN211485362U

CN211485362U - Adjustable pressure ulcer prevention and treatment air cushion bed

Info

Publication number: CN211485362U
Application number: CN201921343363.XU
Authority: CN
Inventors: 杨燕婷
Original assignee: First Hospital of Jiaxing
Current assignee: First Hospital of Jiaxing
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-09-15
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a pressure ulcer control air bed with adjustable, including the bed body, air mattress and for the pump that air mattress provided the pressure air supply, its characterized in that: the inflator pump is provided with a controller, and the controller can turn on or off the inflator pump at regular time; the controller comprises power module, control module and time regulation module, power module provides the power for control module, the time of time regulation module alternative setting control module switch-on or closing the pump power, it has a plurality of time regulation gears, just can select corresponding inflation and gassing time through toggle switch to circulate according to this time, prevention and cure pressure ulcer that can be fine alleviates nursing staff's working strength.

Description

Adjustable pressure ulcer prevention and treatment air cushion bed

Technical Field

The utility model belongs to the technical field of medical equipment, specifically speaking relates to a pressure ulcer control air bed with adjustable.

Background

Pressure ulcer refers to ischemic necrotic skin injury caused by pressure, friction, shear force and immersion, and is characterized in that blood circulation is blocked due to long-term compression of body parts, and in some patients who lack mobility and need to lie in bed for a long time, the patients cannot turn over automatically, and the skin and subcutaneous tissues are ischemic due to long-term compression to generate blisters, ulcers or gangrene.

In the process of clinical treatment, nursing staff need turn over the patient regularly, alleviate local oppression, but the patient that often nursing staff cared for is more, can't in time turn over for the patient and form pressure ulcer, and this is undoubtedly a heavy physical strength work to medical personnel in addition, increases medical personnel's working strength.

Disclosure of Invention

The utility model aims at providing a pressure ulcer prevention and cure air bed with adjustable, it can be fine solution above-mentioned problem.

In order to solve the technical problem, the purpose of the utility model is to realize like this:

the utility model provides a pressure ulcer prevention and cure air bed with adjustable, includes the bed body, air mattress and the pump of providing the pressure air supply for air mattress, its characterized in that: the inflator pump is provided with a controller, and the controller can turn on or off the inflator pump at regular time; the controller comprises power module, control module and time adjustment module, power module provides the power for control module, the time of the time adjustment module alternative setting control module switch-on or closing pump power.

On the basis of the above scheme and as a preferable scheme of the scheme: the control module is a multivibrator circuit formed by a 555 integrated chip IC1, 4 pins and 8 pins of a 555 integrated chip IC1 are connected with a power supply, 1 pin is grounded, a time adjusting module, a first resistor R1 and a capacitor C1 form an external timing element, 6 pins and 2 pins of the 555 integrated chip IC1 are connected with a joint of a first resistor R1 and a capacitor C1 after being connected in parallel, 7 pins are connected with a joint of the time adjusting module and the first resistor R1, 3 pins of the 555 integrated chip IC1 are connected with a base electrode of a triode VT1, a collector or a transmitter of the triode VT1 is connected with a relay K, and a contact K1 of the relay K is connected in series in a power supply loop of the charge pump QB.

On the basis of the above scheme and as a preferable scheme of the scheme: the time adjusting module is internally provided with a plurality of fixed resistors and a toggle switch, and the toggle switch can be connected with the fixed resistors with corresponding resistance values according to required time.

Compared with the prior art, the utility model outstanding and profitable technological effect is: it has a plurality of time adjustment gears, just can select corresponding inflation and gassing time through toggle switch to circulate according to this time, can be fine prevent and treat pressure ulcer, alleviate nursing staff's working strength.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of a controller circuit.

Detailed Description

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step, based on the given embodiments, fall within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

In the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.

The utility model provides a pressure ulcer prevention and cure air bed with adjustable, includes the bed body, the pump QB who inflates the mattress and provide the pressure air supply for the pump QB, the pump QB is provided with the controller, the controller can regularly open or close the pump QB, the controller comprises power module 30, control module 20 and time adjusting module 10 (see the dashed line frame of fig. 2), power module 30 provides the power for control module 20, time adjusting module 10 optional setting switches on or closes the time of pump QB power.

It should be noted that the air cushion bed is also called an air cushion bed air suspension bed. The invention of the air cushion bed is one of the progresses of the burn profession. The mattress of the air cushion bed is filled with a large number of ceramic pellets, and air pressed from an air compressor circulates among the pellets. The patient feels comfortable by adjusting the temperature and flow rate of the air. The patient seems to float in the air flow and can easily rotate the position, preventing the back wound from being pressed, getting damp, dissolving scab infection and preventing the occurrence of bedsore. Specifically, the air cushion bed in the existing surgical consulting room comprises a bed frame, a plurality of bed legs, a plurality of universal wheels, an air cushion bed body, a plurality of independent air cushion bodies, two inflation ports, two inflation port plugs, a plurality of ventilation grooves, partition cotton, two electric air pumps and a plurality of air cushion body seats; the bed legs are connected to the bottom end of the bed frame, and the universal wheels are arranged at the lower ends of the bed legs; the edge of the bedstead is provided with a boss, and the air cushion bed body is arranged on the bedstead; the independent air cushion body is arranged in the air cushion bed body, the separation cotton is arranged in the air cushion bed body, and the independent air cushion body is arranged in the grid of the separation cotton; the air cushion body seat is arranged in the air cushion bed body, and the independent air cushion body is arranged in the air cushion body seat; the inflation inlet is arranged at two sides of the air cushion bed body, the inflation inlet is plugged in the inflation inlet, the electric air pump is arranged on the bed foot, and the ventilation groove is positioned on the air cushion bed body.

The power module 30 is regulated by a constant current of a capacitor C3, rectified by a bridge rectifier module VD, and then regulated by a voltage regulation integrated chip IC2 to provide a stable voltage for the control module 20, the capacitors C4 and C5 are filter capacitors, and the capacitor C3 is connected in parallel with a discharge resistor R6.

The time adjusting module is internally provided with R3, R4, R5 and a toggle switch, and the toggle switch can selectively output any resistance value of R3, R3+ R4, R3+ R4+ R5.

In a multivibrator circuit formed by a 555 integrated chip IC1, a time adjusting module, an R1 and a capacitor C1 are external timing elements, a high-level trigger end pin 6 and a low-level trigger end pin 2 of the 555 integrated chip IC1 are connected in parallel and then connected to a joint of the R1 and the C1, and a discharge end pin 7 is connected to a joint of the time adjusting module and the R1.

At the moment of switching on the power supply, the capacitor C1 is not charged in time, the voltage at two ends of the capacitor is low level and is less than 1/3Vcc, so that a high level trigger end and a low level trigger end of a 555 integrated chip IC1 are both low level, 3 pin output is high level, a triode VT1 is conducted, the power supply of a relay K is switched on, and therefore an electric shock K1 of the relay K is closed, the power supply of an inflator pump QB is switched on, and the inflator pump QB starts to inflate the inflatable bed; at the moment, the power supply charges a capacitor C1 through a time adjusting module, R1 enables the voltage to rise exponentially, when the voltage rises to (2/3) Vcc, the output of a pin 3 is low level, a triode VT1 is cut off, the power supply of a relay K is cut off, so that an electric contact K1 of the relay K is tripped, the power supply of an inflator pump QB is cut off, the inflator pump QB stops running, the inflatable mattress starts to slowly deflate, a discharge tube in a 555 chip is conducted, the voltage rises from (1/3) Vcc to (2/3) Vcc due to the conduction of the discharge tube, the capacitor C1 discharges through a pin 7 through a resistor R1, a circuit enters a second temporary stable state, the length of the maintenance time of the circuit is related to the discharge time of the capacitor, the circuit drops along with the discharge of a capacitor C1, when the voltage drops to (1/3) Vcc, the output of the pin 3 is high level, the power supply of the inflator pump Q, the discharge tube in the 555 chip is cut off, the power supply charges the capacitor C1 again, and the circuit is turned over to the first temporary stable state again.

Preferably, the pin 3 of the 555 integrated chip IC1 is further connected with an indicator lamp VD1, the VD1 is connected in series with a current limiting resistor R5, and the pin 5 is grounded through a capacitor C2, so as to eliminate the interference of the reference terminal.

Preferably, the relay K is connected in parallel with a freewheeling diode VD 2.

It should be noted that the inflator pump in this embodiment is also called an inflator, an inflator pump, and an inflator, and works through the operation of the motor, and is an inflation tool, the contact K1 of the relay K of the controller is connected in series between the motor and the 220V wire loop (see fig. 2, the contact K1 of the relay K is connected in series between the 220V power supply loop of the inflator pump QB), the controller controls the contact K1 of the relay K to be attracted or disconnected to realize the start and stop of the motor, so as to realize the control of the inflator pump by the controller; furthermore the utility model discloses a control time can calculate through 555 integrated chip's the multivibrator's that constitutes charge-discharge computational formula to the parameter of short C1 and resistance R1, R2, R3 is melted to the time as required and is selected, and specific calculation method is: setting the capacitance value of the capacitor C1 as C, adjusting the charging time T1 (i.e. the time length of actuation of the contact K1 of the relay K, the time length of actuation of the contact K1 to turn on the power supply of the inflator QB, and the time length of inflation for inflating the inflatable bed, that is, the charging time) to be 0.7(R2+ R1) C or 0.7(R2+ R3+ R1) C or 0.7(R2+ R3+ R4+ R1) C by the fluctuation switch SA, and adjusting the discharging time T2 (i.e. the time length of tripping the contact K1 of the relay K, cutting off the power supply of the inflator QB, stopping the operation of the inflator QB, and starting slow deflation of the inflatable mattress) to be 0.7R1C, so as to perform cyclic inflation and deflation according to the cycle with the cycle time length T1+ T2, thereby achieving the opening or closing of the inflatable bed at regular time.

Therefore, the inflation and deflation circulation is realized according to the time duration of T1 and T2, the supporting performance of the inflatable mattress becomes good after being inflated, but the inflatable mattress also becomes hard, the pressure of the skin of a human body is increased, the skin and subcutaneous tissues are pressed, and the inflatable mattress becomes soft after a period of time in a slow mode, the pressure of the skin of the human body is reduced, and the pressing of the skin and the subcutaneous tissues is well relieved.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a pressure ulcer prevention and cure air bed with adjustable, includes the bed body, air mattress and provides the pump of pressure air supply for air mattress, its characterized in that: the inflator pump is provided with a controller, and the controller can turn on or off the inflator pump at regular time; the controller comprises power module, control module and time adjustment module, power module provides the power for control module, the time of the time adjustment module alternative setting control module switch-on or closing pump power.

2. The adjustable pressure ulcer control air bed as claimed in claim 1, wherein: the control module is a multivibrator circuit formed by a 555 integrated chip IC1, a pin 4 and a pin 8 of the 555 integrated chip IC1 are connected with a power supply, a pin 1 is grounded, a time adjusting module, a first resistor R1 and a capacitor C1 form an external timing element, a pin 6 and a pin 2 of the 555 integrated chip IC1 are connected with a connecting part of a first resistor R1 and a capacitor C1 after being connected in parallel, a pin 7 is connected with a connecting part of the time adjusting module and the first resistor R1, a pin 3 of the 555 integrated chip IC1 is connected with a base electrode of a triode VT1, a collector or a transmitter of the triode VT1 is connected with a relay K, and a contact K1 of the relay K is connected in series in a power supply loop of the inflator pump.

3. The adjustable pressure ulcer control air bed as claimed in claim 1, wherein: the time adjusting module is internally provided with a plurality of fixed resistors and a toggle switch, and the toggle switch can be connected with the fixed resistors with corresponding resistance values according to required time.