CN215875331U

CN215875331U - Inflatable mattress capable of being accurately controlled

Info

Publication number: CN215875331U
Application number: CN202122203672.0U
Authority: CN
Inventors: 游通涵
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-22
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses an inflatable mattress capable of being accurately controlled, which comprises a base cushion, a control center and a plurality of fan-shaped air bags arrayed on the base cushion, wherein each fan-shaped air bag comprises a first fan-shaped air bag and a second fan-shaped air bag, the first fan-shaped air bags are respectively distributed on the left side and the right side in the middle of the base cushion, the axis of each first fan-shaped air bag is close to the center line of the base cushion, and the axis is parallel to the center line of the base cushion; the second fan-shaped air bags are distributed on the bottom side of the bottom cushion, and the axis of each second fan-shaped air bag is perpendicular to the center line of the bottom cushion; the inflatable mattress also comprises a pressure sensor array, wherein the pressure sensor array is arranged in a space enclosed by the first fan-shaped air bag and the second fan-shaped air bag; the pressure sensor is electrically connected with the control center. The utility model is provided with the pressure sensor array, so that the effect of turning over and turning over can be improved, and the pressure sensor array can accurately detect the pressure of a key pressed part and is used for controlling a main control program, so that the pressure reduction effect is optimal.

Description

Inflatable mattress capable of being accurately controlled

Technical Field

The utility model relates to the technical field of inflatable mattresses, in particular to an inflatable mattress capable of being accurately controlled.

Background

The body part is stressed for a long time, the blood circulation of the stressed part is influenced, oxygen and nutrients cannot be normally alternated, skin and intramuscular tissues are damaged to a certain extent, and cell necrosis can be caused seriously.

In addition, the air in the bedding is not circulated, the concentration of moisture and foul air is high, and the bedding is particularly serious for the patients who suffer from incontinence of urine and feces, and the environment is easy to breed bacteria, so that the peripheral skin tissues are damaged, and the fester is formed.

The most likely sites for bedsores are the sacrum, femur, tuberosity, ischium, calcaneus, and then the carina such as occipital ridge, iliac ridge, scapula, external malleolus. These parts are main pressure-bearing parts, and are easy to generate bedsore.

Medically, decubitus levels are classified according to the severity of local tissue damage. Generally divided into four degrees: at degree i, erythema is present but the skin is intact;

II degree, damage of deep skin, involvement of epidermis and dermis;

III, damage to the entire skin, involvement of the subcutaneous tissue, but not penetration of the fascia;

and IV, the tissue destruction reaches deep to the muscle or the skeleton.

The bedsore-proof mattress reduces the pressure of the pressed part and improves the blood circulation of the pressed part by changing the body posture, thereby reducing the occurrence probability of bedsore or accelerating the recovery of bedsore.

In the existing market, the bedsore-proof inflatable mattress mainly comprises: strip wave type, wave type with holes, wave jet type, ball type, etc.

(1) Bedsore prevention airbed (strip fluctuation type):

the strip shape is fluctuant, the air permeability is good, the waterproofness is good, the elasticity is good, and each strip can be replaced independently.

The patient can continuously inflate when lying on the mattress for 24 hours, the surface of the mattress fluctuates, the mattress has the advantages of ventilation and air exchange and body stress point transfer, and the mattress can play a role in preventing and treating bedsore after long-term use.

(2) Anti-bedsore airbed (wavy type with hole):

the mattress with the holes for defecation is characterized in that: the defecation hole is flexible to use and convenient to operate, the skin is easy to keep clean, and the effect of reducing the labor intensity of nursing staff is achieved.

(3) Anti-bedsore airbed (wave jet type): the micro-air is used for spraying air, so that the temperature in the bedding is reduced, the growth of bacteria is prevented, and the skin is kept dry and comfortable.

(4) Anti-bedsore airbed (ball type): good waterproof performance, good elasticity, difficult wrinkling and comfortable feeling for patients.

Limitations of traditional anti-bedsore mattresses:

1) the left and right turning-over action can not be realized.

2) Because the air passage is in a flat state, the air passage is usually filled with air firstly, then is deflated a little and is refilled in a short time to support the human body. Therefore, when the patient lies on the back, the bedsore position, such as the caudal vertebra position, is prone to be suffered, and even when each airway is slightly deflated, the bedsore position can be easily suffered by keeping the pressure contact with the surface of the mattress airway for a long time due to the weight of the patient.

3) When a patient lies on the mattress, the patient still keeps a supine position for a long time, the cervical vertebra, the hip joint, the knee joint, the ankle joint and the like rarely obtain necessary movement, and the patient needs to completely rely on nursing staff to do joint movement.

To overcome the limitations of the above technical problems, the inventor discloses in chinese patent document CN104921891A an inflatable mattress, comprising a bottom pad, a plurality of air valves, at least one air pump, and a plurality of air cells arrayed on the bottom pad; the air bags swell through inflation and contract through exhaust, and different air bags are used for supporting different parts of a human body; the air pump inflates the air bag through the air valve; the air valve is used for connecting the air pump and the air bag. The air bag comprises a fan-shaped air bag and a square air bag; the longitudinal section of the inflated fan-shaped air bag is fan-shaped; the longitudinal section of the inflated square air bag is rectangular. The plurality of air bags comprise a square air bag and six fan-shaped air bags; the square air bag is arranged at the headrest and used for supporting the head and neck; the six fan-shaped air bags are arranged in two rows along the middle line of the bottom cushion; three fan-shaped air bags are uniformly distributed on the left side and the right side of the middle line. The central angles of the four fan-shaped air bags close to one side of the square air bag face to the middle line of the bottom cushion; the four fan-shaped air bags are used for assisting the human body to turn over to the left side or the right side. The central angles of the two fan-shaped air bags far away from one side of the square air bag face one side of the square air bag; the two fan-shaped air bags are used for supporting the legs and enabling the legs of the human body to be bent naturally. The bottom cushion is formed by two bearing soft cushions or an integral bearing soft cushion. When the square air bag is inflated, all the position points of the square air bag are inflated in a balanced manner, the surface of the square air bag is gradually expanded in parallel, and the head and the neck are supported.

CN104921891A further discloses that the number of air valves is matched with the number of air bags; the air valves receive the instructions of the controller, open the valves and exhaust the air in the air bags, and each air valve controls the inflation and the exhaust of one air bag. The air valve is communicated with the air pump and the air bag through air pipes respectively, and is also communicated with the outside through an air pipe.

CN104921891A further discloses that the inflatable mattress further comprises a controller and a control center, wherein the controller is used for receiving external input commands and transmitting the input commands to the control center; the control center integrates an ergonomic principle and a preset control program designed according to ergonomics, and calls a corresponding control program according to an input instruction to control the air pump to inflate a corresponding air bag through the air valve; and the control center calls a corresponding control program to control the air valve to exhaust the corresponding air bag according to the input instruction.

This air mattress combines the ergonomics principle, and the innovation utility model discloses an automatically controlled inflation that has the ergonomics characteristic stands up mattress, has really realized closely laminating with each position movement track of health, realizes each position synchronization action, accomplishes the most comfortable product target of standing up and limbs auxiliary movement, for vast bed patient or the old man that lose the exercise function, alleviates bedsore and takes place the probability.

The inventors have further developed on the basis of CN104921891A to find room for improvement, which is a problem not easily imaginable to those skilled in the art: the turning over device can control the turning over actions more accurately to achieve the best turning over effect.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to solve the above technical problems, the present invention provides an inflatable mattress capable of being precisely controlled, which can precisely control the pressure to optimize the pressure reduction effect, so as to achieve the optimal turning effect.

The adopted technical scheme is as follows:

an inflatable mattress capable of being accurately controlled comprises a base cushion, an air valve, an air pump, a controller, a control center and a plurality of fan-shaped air bags arrayed on the base cushion, wherein each fan-shaped air bag comprises a first fan-shaped air bag and a second fan-shaped air bag, the first fan-shaped air bags are respectively distributed on the left side and the right side of the middle of the base cushion, the axis of each first fan-shaped air bag is close to the center line of the base cushion, and the axis of each first fan-shaped air bag is parallel to the center line of the base cushion; the second fan-shaped air bags are distributed on the bottom side of the bottom cushion, and the axis of each second fan-shaped air bag is perpendicular to the center line of the bottom cushion; the inflatable mattress also comprises a pressure sensor array, and the pressure sensor array is arranged in a space enclosed by the first fan-shaped air bag and the second fan-shaped air bag; the pressure sensor is electrically connected with the control center.

Furthermore, the pressure sensor array is parallel to the midline direction of the bottom cushion, the length is the distance from the cervical vertebra to the sacrococcygeal part, and the length is 60-80 cm; the width of the insole is 3-5cm from the midline of the insole to both sides, and the total width is 6-10 cm.

Furthermore, the pressure sensor array is a rectangular array, 10-30 pressure sensors are distributed in each column, and 5-10 pressure sensors are distributed in each row.

Further, fan-shaped gasbag includes 2 or more than 2 air cavitys, and each air cavitys is along this one side of axis gluing together, and a hole is dug out respectively to the position at the center of the contact surface between two adjacent air cavitys, and through hot pressing with each air cavity intercommunication, form a complete gasbag, settle an air cock in the gasbag bottom, the air cock passes through the air duct and is connected with the air valve.

Furthermore, a small piece of sponge or polyester fiber mesh cloth is adhered to the inner wall of each fan-shaped air bag at the position right opposite to the air nozzle.

Further, the air pump is including aerifing the air pump and the air pump of bleeding, the pneumatic valve includes pressure retaining valve and discharge valve, the pressure retaining valve has three air cock, and one of them air cock passes through the trachea and is connected with the gasbag, and second air cock passes through the trachea and is connected with the air pump of aerifing, and the third air cock passes through the trachea and is connected with discharge valve, discharge valve with the air pump of bleeding is connected.

Furthermore, the control center comprises a storage unit and a control unit, wherein the storage unit is used for storing various parameters set by the controller, and the control unit is used for calling the parameters to realize different control results.

Furthermore, the control unit comprises a main control program, the main control program receives parameters set by the controller, the set parameters are stored in the storage unit, and the main control program can call the set parameters to realize different control results.

The utility model has the beneficial effects that:

the utility model is provided with the pressure sensor array, so that the effect of turning over and turning over can be improved, and the pressure sensor array can accurately detect the pressure of a key pressed part and is used for controlling a main control program, so that the pressure reduction effect is optimal.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view showing a structure of an airbed capable of being precisely controlled.

Fig. 2 is a schematic structural diagram of a pressure sensor array.

Fig. 3 is a schematic structural diagram of a sector-shaped air bag after inflation.

Fig. 4 is a schematic diagram of a control circuit of an inflatable mattress capable of being precisely controlled.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only preferred embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an inflatable mattress capable of being precisely controlled comprises a base pad 1, an air valve, an air pump, a controller, a control center and a plurality of fan-shaped air bags arrayed on the base pad 1, wherein the fan-shaped air bags comprise a first fan-shaped air bag and a second fan-shaped air bag, the left side and the right side of the middle of the base pad are respectively provided with the first fan-shaped air bag, the axis of the first fan-shaped air bag is close to the center line of the base pad, and the axis is parallel to the center line of the base pad; and a second fan-shaped air bag is distributed at the bottom side of the bottom cushion, and the axis of the second fan-shaped air bag is vertical to the midline of the bottom cushion.

As an example, the plurality of fan-shaped air bags may include 3 fan-shaped air bags, wherein 2 first fan-shaped air bags and 1 second fan-shaped air bag. It can also include 4 fan-shaped air bags, wherein 2 first fan-shaped air bags and 2 second fan-shaped air bags. The air bag structure also can comprise 5 fan-shaped air bags, wherein 4 first fan-shaped air bags and 1 second fan-shaped air bag, and also can comprise 6 fan-shaped air bags, wherein 4 first fan-shaped air bags and 2 second fan-shaped air bags.

As an alternative embodiment, the plurality of air bags may include one square air bag and six fan-shaped air bags, the square air bag being provided at the headrest; three fan-shaped air bags (namely 6 fan-shaped air bags in total) are distributed on the left side and the right side of the midline 9 of the bottom cushion respectively; the axes 11 of the four fan-shaped air bags (i.e. the first fan-shaped air bag) close to one side of the square air bag are close to the midline 9 of the bottom cushion and are parallel to the midline of the bottom cushion; the axes 11 of the two fan-shaped air bags (i.e. the second fan-shaped air bags) far away from one side of the square air bag are close to one side of the square air bag and are perpendicular to the midline of the bottom cushion.

Under this alternative embodiment, the connection relationship among the bottom pad, the air valve, the air pump, the controller, the control center and the plurality of air cells arrayed on the bottom pad can be referred to the description disclosed in CN 104921891A. When necessary, reference may be made to the disclosure of CN 104921891A.

Wherein, the square air bag is a pillow air bag 2, and the six fan-shaped air bags 20 are a right back air bag 3, a left back air bag 4, a right hip air bag 5, a left hip air bag 6, a right leg air bag 7 and a left leg air bag 8 respectively.

The main improvement of the utility model is as follows:

the inflatable mattress also comprises a pressure sensor array 10, wherein the pressure sensor array is arranged in a space enclosed by the first fan-shaped air bag and the second fan-shaped air bag; the pressure sensor is electrically connected with the control center.

Further, the pressure sensor array 10 is disposed between four fan-shaped air bags adjacent to the square air bag.

Further, as shown in fig. 2, the pressure sensor array is parallel to the midline direction of the base pad, the length is the distance from the cervical vertebra to the sacral caudal region, and the length is 60-80 cm; the width of the insole is 3-5cm from the midline of the insole to both sides, and the total width is 6-10 cm.

The pressure sensor array is a rectangular array, 10-30 pressure sensors are distributed in each row, and 5-10 pressure sensors are distributed in each row.

The array of pressure sensors is electrically connected to the control center (in fig. 4, the electrical circuit connection is an electrical connection).

The pressure sensor array can collect pressure data of each point location according to certain interval time and transmit the pressure data to the control center.

The control center carries out comprehensive analysis according to the pressure data and the parameters set by the controller, then controls the switches of the air valves, controls the air pumps, and carries out inflation, pressure maintaining or exhaust on the air bags, thereby realizing various turning-over and turning-over actions or auxiliary movements of various parts.

The control center controls the inflation time of each air bag, so that the air bags swell to support the corresponding parts, and at the moment, the pressure values of the pressure sensors at certain point positions are reduced to zero, and complete decompression is realized. For example: when the air bags on the left shoulder and the hip are inflated and expanded, the pressure values of a plurality of point positions of the sacral tail collected by the pressure sensor array are gradually reduced until the pressure values are reduced to zero, the control center can stop continuously inflating, the air bags enter a pressure maintaining state and continue for a period of time, so that the sacral tail is fully relaxed, and the blood circulation is improved.

The control center of the utility model can be a singlechip and is provided with a storage unit and a control unit. The control unit receives the instruction of the controller and the data of the pressure sensor, controls the inflation, pressure maintaining or exhaust of each air pump, controls the switch of each air valve, and realizes the inflation, pressure maintaining and exhaust of the air bag.

The storage unit can store various parameters set by the controller, including but not limited to weight, inflation time of each air bag, time for keeping the inflation state of each air bag, time for keeping the complete deflation state of each air bag, interval time value for delaying the start of the turning-over action, the lowest pressure value and the highest pressure value of a certain position point and the like. The control unit calls the parameters to realize different control results.

The control unit includes a main control program. The main control program performs the following operations:

(1) the main control program receives the parameters set by the controller and stores the set parameters in the storage unit.

(2) In the main control program, a plurality of control parameters are set by default, including: the time for inflating each air bag under different action commands, the time for keeping the inflated state, the time for keeping the air-free state after air exhaust, the time interval for delaying the starting of a certain mode and the like.

(3) Under the condition of configuring the pressure sensor array, the main control program receives an operation instruction of the controller, collects numerical values of each position point of the pressure sensor array, comprehensively forms a control condition, and controls each air pump and each air valve to perform inflation, pressure maintaining and exhaust, so that the pressure of different position points of the pressure sensor array is reduced to a required value (for example, the pressure of the sacrum position needs to be reduced to zero).

The controller can be a hand-held controller or can be designed into a control box. The controller is connected with the control center in a wired or wireless way, sends configuration parameters and control instructions to the control center, controls the inflation, exhaust, pressure maintaining time and the like of the air pump, and realizes various actions such as turning over, twisting, leg lifting, leg stretching, head lifting, hip lifting and the like.

The utility model provides a design scheme of an inflatable mattress circuit with a pressure sensor array.

The control center carries out comprehensive operation according to the default parameter value or the set parameter value and the pressure value, controls the inflation, the exhaust and the pressure maintaining time of each air bag, and realizes various turning-over and turning-over actions or the movement of a single part.

Namely, the control method of the air mattress comprises the following steps: the main control program of the control unit receives an operation instruction of the controller, collects numerical values of all position points of the pressure sensor array, comprehensively forms control conditions, controls all air pumps and air valves to inflate, maintain pressure or exhaust, and reduces the pressure of different position points of the pressure sensor array to a required value while realizing various turning-over and turning-over actions.

For example, the pressure sensor data is used for precise control of timed automatic turning:

the utility model designs a method for controlling by utilizing data of a pressure sensor. The control center adds the data of the pressure sensor in the program of timing automatic turn-over as one of the control preconditions.

The main control program can default to the condition that the pressure data of a certain position point of the pressure sensor array is zero as a precondition for controlling the inflating time of the air bags, the inflating time of each air bag is controlled, and the inflating quantity is controlled to reduce the pressure value of a certain position to zero. For example: when a person lies on the back, the sacrococcygeal region is the most pressure-needing reduction, the inflating time of the hip air bag is controlled by a program, the left or right hip is jacked up, the pressure of the sacrococcygeal region is gradually reduced to zero, and then the inflation can be stopped.

After the pressure sensor array is added, the inflation quantity of each air bag can be controlled more accurately, and the pressure of the sacrococcygeal region is reduced to zero.

Secondly, other improvements of the utility model are as follows:

1. the fan-shaped air bag is made of TPU. The fan-shaped air bag comprises 2 or more air cavities, each air cavity is bonded together along one side of the axis, a hole is dug out respectively at the center of the contact surface between every two adjacent air cavities, each air cavity is communicated through hot pressing to form a complete air bag, an air faucet is arranged at the bottom of the air bag, and the air faucet is connected with the air valve through an air guide pipe.

The fan-shaped air bag is provided with an inflation/exhaust port which is connected with the air valve through an air duct. Before inflation or after air exhaust, the fan-shaped air bag is in a normal contraction state; after inflation, the air bag swells in a fan shape along the axis, and can push an object or a human body pressed on the air bag to move upwards.

Meanwhile, a small piece of sponge or polyester fiber mesh cloth is pasted on the inner wall of each fan-shaped air bag (air bag for short) and the position right opposite to the air nozzle, air impacts the sponge or polyester fiber mesh cloth when the air bag is inflated, and noise is reduced to a certain degree.

2. The air pump is including aerifing the air pump and the air pump of bleeding, and the pneumatic valve includes pressure retaining valve and discharge valve, and the pressure retaining valve has three air cock, and one of them air cock passes through the trachea to be connected with the gasbag, and the second air cock passes through the trachea to be connected with the air pump of bleeding, and the third air cock passes through the trachea to be connected with discharge valve, and discharge valve is connected with the air pump of bleeding. This can be further seen in fig. 4.

And in the power-off state, the pressure retaining valve switch is closed to disconnect the air path between the air bag and the exhaust valve, so that the air in the air bag cannot be exhausted, and the inflation state is maintained.

Under the power-on state, the control center can control the pressure retaining valve switch to be opened, communicate the air path between the air bag and the inflator pump, and control the inflator pump to inflate the air bag.

Under the power-on state, the control center can control the pressure retaining valve switch to be opened, the air path between the air bag and the exhaust valve is communicated, the exhaust valve is controlled to exhaust air, and air in the air bag is exhausted in an accelerated mode. In this state, the control center does not need to control the exhaust valve to exhaust air, but only the air in the air bag is naturally exhausted along the air path between the air bag and the exhaust valve.

The pressure maintaining valve is used for maintaining the inflated state of the air bag, supporting the body and maintaining for a period of time, thereby continuously relieving the pressure of certain parts.

The exhaust valve is connected with each normally closed air valve (pressure retaining valve) through an air pipe.

When a certain air bag needs to exhaust, the control center controls the pressure retaining valve corresponding to the air bag, opens the switch, communicates the air path between the air bag and the exhaust valve, and exhausts the air in the air bag. The air outlet of the exhaust valve can also be connected with an air pump for pumping air, so that the exhaust speed of the air bag is increased.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. The inflatable mattress capable of being accurately controlled is characterized by comprising a base cushion, an air valve, an air pump, a controller, a control center and a plurality of fan-shaped air bags arrayed on the base cushion, wherein each fan-shaped air bag comprises a first fan-shaped air bag and a second fan-shaped air bag, the first fan-shaped air bags are respectively distributed on the left side and the right side of the middle of the base cushion, the axis of each first fan-shaped air bag is close to the center line of the base cushion, and the axis of each first fan-shaped air bag is parallel to the center line of the base cushion; the second fan-shaped air bags are distributed on the bottom side of the bottom cushion, and the axis of each second fan-shaped air bag is perpendicular to the center line of the bottom cushion; the inflatable mattress also comprises a pressure sensor array, and the pressure sensor array is arranged in a space enclosed by the first fan-shaped air bag and the second fan-shaped air bag; the pressure sensor is electrically connected with the control center.

2. The precisely controllable air mattress according to claim 1, wherein the array of pressure sensors is parallel to the midline of the base mattress, has a length of 60-80cm from the cervical spine to the sacrococcygeal region; the width of the insole is 3-5cm from the midline of the insole to both sides, and the total width is 6-10 cm.

3. The precisely controllable air mattress according to claim 2, wherein said array of pressure sensors is a rectangular array having 10-30 pressure sensors per column and 5-10 pressure sensors per row.

4. The inflatable mattress capable of being precisely controlled according to claim 1, wherein the fan-shaped air chambers comprise 2 or more than 2 air chambers, the air chambers are adhered together along the side of the axis, a hole is dug in the center of the contact surface between every two adjacent air chambers, the air chambers are communicated through hot pressing to form a complete air chamber, and an air nozzle is arranged at the bottom of the air chamber and connected with the air valve through an air duct.

5. The precisely controlled air mattress according to claim 4, wherein a small piece of sponge or polyester fiber mesh is adhered to the inner wall of each fan-shaped air bag at the position opposite to the air nozzles.

6. The inflatable mattress of claim 5, wherein the air pump comprises an inflation air pump and an air extraction air pump, the air valves comprise a pressure retaining valve and an exhaust valve, the pressure retaining valve has three air nozzles, one of the air nozzles is connected with the air bag through an air pipe, the second air nozzle is connected with the inflation air pump through an air pipe, the third air nozzle is connected with the exhaust valve through an air pipe, and the exhaust valve is connected with the air extraction air pump.