KR102351136B1 - Embedded type bedsore prevention apparatus using body pressure characteristics of the user and bedsore prevention mat using the same - Google Patents

Abstract

The present invention detects the user's body pressure, analyzes the user's body pressure characteristics through the sensed body pressure, and dynamically performs alternating levitation in consideration of the analyzed user's body pressure characteristics, thereby preventing bedsores and improving user convenience. It relates to an embedded pressure ulcer prevention device using the user's body pressure characteristics and a pressure ulcer prevention mat using the same. Specifically, a plurality of accommodation pockets are arranged to have unit sectors, and a pump for supplying or discharging a floating member to each unit sector is provided. being the body; a sensor unit provided on the upper portion of the body to measure the pressure applied by the user; and collects the measurement information measured by the sensor unit, analyzes the user's body pressure characteristics based on the collected measurement information, sets a user-customized shift cycle, and supplies the floating member to the selected unit sector of the body according to the set shift cycle or a control unit for transmitting a control signal to the pump to discharge.

Description

Embedded type bedsore prevention apparatus using body pressure characteristics of the user and bedsore prevention mat using the same}

The present invention detects the user's body pressure, analyzes the user's body pressure characteristics through the sensed body pressure, and dynamically performs alternating levitation in consideration of the analyzed user's body pressure characteristics, thereby preventing bedsores and improving user convenience. It relates to an embedded type pressure ulcer prevention device using the user's body pressure characteristics and a pressure ulcer prevention mat using the same.

In Korean society, where life expectancy is generally rising but healthy life expectancy is declining, bedsores are the most important disease for the disabled and the elderly who have to live in a chair for a long time. Bedsores occur continuously without reducing pressure in a specific area, causing damage to the underlying tissues, and frequently occur in the disabled, the elderly, patients with pre- and post-surgery, and diabetic patients whose nerve tissue is damaged or degenerated by aging.

In order to prevent such pressure sores, it is important to change the posture at regular intervals. It is a disease that requires a lot of human effort in the process of prevention or treatment after occurrence. There is a big problem with physical and mental difficulties for the caregiver or patient.

Therefore, in the age of an aging society, interventional equipment for pressure ulcer nursing is expected to become increasingly essential, and various pressure ulcer prevention equipment for preventing pressure ulcers in advance have been developed and distributed in recent years.

As an example, an APAM (Alternating pressure air mattresses) type pressure ulcer prevention device has been disclosed.

The APAM type pressure ulcer prevention device is the most representative power-type pressure ulcer prevention product, and it has a plurality of air cells divided into a plurality of unit areas. By following the method of adjusting the pressure of the user, it is possible to prevent the occurrence of pressure sores due to the intensive contact of the user's body in one place for a long period of time.

According to “Alternating pressure air mattresses as prevention for pressure ulcer” by Katrien Vanderwee, the APAM method as described above has superior pressure distribution and almost blocks Friction & Shearing Forces when changing postures. It has been proven to be more effective in preventing and treating bedsores than (air filling, water filling, honeycomb shape).

However, in the case of the conventional APAM-type pressure ulcer prevention equipment, it is recommended to set the alternating flotation cycle and the air cell supply pressure to an appropriate condition, but most users have difficulty understanding the meaning of such condition setting, and excessively set pressure. There are frequent cases in which the effect of preventing pressure ulcers is reduced due to the use of incorrect conditions, such as grounding when the body is in direct contact with the floor when the contact load is high by raising it, or when the air pressure is set low.

In addition, in the air supply process, the required power consumption varies depending on the body weight. Obesity requires high power consumption. If the body weight is small, it can be lifted with low power consumption. There is a risk of unnecessary power consumption and damage to the air cell. Conversely, there is a risk of increasing the probability of bedsores because the posture does not change when supplying air with a pressure smaller than the appropriate amount.

As such, the conventional APAM-type pressure ulcer prevention equipment requires a clear understanding of the effects of the operating conditions on the human body due to the difficulty and ambiguity of setting the operating conditions, and thus requires user knowledge, so user convenience is low. There is a serious problem that rather adversely affects the prevention of bedsores.

Republic of Korea Patent Publication No. 10-2011-0109064 (2011.10.06.)

Therefore, the present invention has been devised to solve the above problems, and it detects the user's body pressure, analyzes the user's body pressure characteristics through the sensed body pressure, and dynamically performs alternating flotation in consideration of the analyzed body pressure characteristics of the user An object of the present invention is to provide an embedded pressure ulcer prevention device using the user's body pressure characteristics that can prevent pressure ulcers and improve user convenience by doing so, and a pressure ulcer prevention mat using the same.

As a means for achieving the above object, the embedded pressure ulcer prevention device (hereinafter referred to as 'the pressure ulcer prevention device of the present invention') using the user's body pressure characteristics of the present invention is arranged so that a plurality of accommodation pockets have unit sectors, a body provided with a pump for supplying or discharging the floating member to each unit sector; a sensor unit provided on the upper portion of the body to measure the pressure applied by the user; and collects the measurement information measured by the sensor unit, analyzes the user's body pressure characteristics based on the collected measurement information, sets a user-customized shift cycle, and supplies the floating member to the selected unit sector of the body according to the set shift cycle or a control unit for transmitting a control signal to the pump to discharge.

As an example, the sensor unit is characterized in that a plurality of Force Sensing Resistor (FSR) sensors are arranged in longitudinal and lateral directions to form a matrix.

As an example, the control unit is characterized in that the user's body weight is input and stored, and the shift cycle is set so that the inputted user's weight is reflected in the body pressure characteristic.

As an example, the control unit sets a linearized load time-pressure characteristic curve in which tissue damage occurs according to the correlation between pressure and load time as a reference threshold value, and the numerical value is relative to the reference threshold value It is characterized in that a low linearized load time-pressure characteristic curve is set as an alternating threshold value, and when the analyzed user's body pressure characteristic exceeds the alternating threshold value, a control signal is generated and output so that the alternating levitation is performed.

As an example, the control unit calculates the data measured by the sensor unit as an average load pressure value for a preset measurement time and reflects it in the analysis of the user's body pressure characteristics.

As an example, the control unit is characterized in that the alternating threshold value is set in a range of 50% to 70% of the reference threshold value.

As an example, the control unit sets a forced alternating threshold time so that the alternating levitation can be performed according to the load time regardless of the user's body pressure characteristics, and the pressure value according to the user's body pressure characteristics exceeds the alternating threshold value Even if not, it is characterized in that the control signal is generated and output so that the forced shift levitation is performed when the sustained load time reaches the forced shift threshold time.

As an example, the forced shift critical time is characterized in that 1 hour 30 minutes to 2 hours.

As an example, the floating member is characterized in that any one of air, water, and gel.

Meanwhile, in the present invention, it is characterized by further presenting a pressure ulcer prevention mat including an embedded pressure ulcer prevention device using the user's body pressure characteristics.

As such, the device for preventing pressure ulcers of the present invention senses the user's body pressure, analyzes the user's body pressure characteristics through the sensed body pressure, and dynamically performs alternate flotation in consideration of the analyzed body pressure characteristics of the user.

Accordingly, the pressure ulcer prevention device of the present invention applies the APAM (Alternating pressure air mattresses) driving method to see the effect of preventing and treating bedsores, and the user does not have to set up complicated environments and conditions, so the user's convenience is improved. There are benefits that can be improved.

In addition, alternating buoyancy is dynamically performed by supplying an appropriate flotation member according to the user's body pressure characteristics, thereby preventing unnecessary power consumption in the device, thereby prolonging the lifespan by improving the durability of the device and enabling efficient maintenance of the battery. There is this.

1 is a view schematically showing an embedded pressure sore prevention device using a user's body pressure characteristics according to the present invention.
2 is a diagram illustrating a circuit configuration of a sensor unit according to an embodiment of the present invention.
3 is a view showing an FSR sensor applied to the sensor unit according to an embodiment of the present invention.
4 is a diagram illustrating a COP in an FRS sensor of a square matrix type according to an embodiment of the present invention.
5 is a block diagram illustrating a detailed configuration of a control unit according to an embodiment of the present invention.
6 is a graph showing a characteristic curve obtained by linearizing a reference threshold value at which tissue damage occurs according to a correlation between pressure-load time according to an embodiment of the present invention.

In describing the present invention, the terms or words used in the present specification and claims are based on the principle that the inventor can appropriately define the concept of the term in order to best describe his or her invention. It should be interpreted as meaning and concept consistent with the technical idea of

Referring to FIG. 1, the pressure ulcer prevention device of the present invention includes a main body 10 that is in contact with the user's body in a sitting or lying state, and alternately lifts every set time to prevent pressure sores on the contact portion, and the main body 10 ) built-in to the sensor unit 20 for measuring the user's body pressure, and a control unit 30 for analyzing the measurement information of the sensor unit 20 to set an alternating buoyancy cycle and controlling the operation of the main body 10 accordingly includes

The main body 10 is a pump for supplying, maintaining, or discharging the floating member 102 to the receiving pocket 101 of each unit sector 100, and the plurality of receiving pockets 101 are arranged to have the unit sector 100. (110) is provided.

At this time, the floating member 102 may be any one of air, water, and gel, and by selectively supplying, maintaining, or discharging the plurality of receiving pockets 101 constituting the individual unit sector 100 to the main body 10 Alternate buoyancy for each unit sector 100 can be performed.

That is, the main body 10 has at least two or more unit sectors 100 in which supply and discharge paths are partitioned, and the amount of the buoyancy member 102 supplied, maintained, or discharged to the receiving pocket 101 of each unit sector 10 . Shift flotation is performed by selectively adjusting

The alternating lifting operation of the main body 10 may be performed differently for each user according to the alternating lifting period set in the control unit 30 to be described below.

The body 10 may further include a cover 120 .

The cover 120 is configured to surround the receiving pocket 101 of the main body 10 as well as the sensor unit 20 to be described below, so that the main body 10 and the sensor unit 20 are not exposed to the outside. In the present invention, the material of the cover 120 is not limited, but it is preferable to select a material that can minimize the electrical influence on the measurement of the sensor unit 20 while preventing the user from feeling uncomfortable when sitting or lying down.

The sensor unit 20 is provided on the upper portion of the main body 10 to measure the pressure applied through the user's body every preset first time, and transmits the measured measurement information to the control unit 30 .

Here, the first time may be in real time or in minutes.

The sensor unit 20 may be configured in a matrix form in which a plurality of Force Sensing Resistor (FSR) sensors 200 are aligned in the longitudinal and transverse directions, and face all the receiving pockets 101 of the body 10 . It can be designed to have an area of Accordingly, the number of the FRS sensors 200 may vary in proportion to the design area.

Hereinafter, the sensor unit 20 according to an embodiment of the present invention will be described in more detail with reference to FIGS. 2 to 4 .

2 shows the circuit configuration of the sensor unit 20, the sensor unit 20 according to the present embodiment includes a plurality of FSR sensors 200, a plurality of input-side switches 210, a plurality of output-side switches 220, It may be configured to include a control module 230 , an analog to digital (A/D) converter 240 , and a transmission module 250 .

First, as mentioned above, the plurality of FSR sensors 200 are arranged in a matrix form of n×m, and when pressure is applied by the user's body, a resistance value according to the pressure is output.

The FSR sensor 200 may be manufactured in the form of a film, and a pattern capable of applying power to the upper portion of a polyethylene (PE) film of about 30 to 100 μm and carbon having a certain resistance is printed on another film. produce In this case, the polyethylene film used is tough and has excellent solvent resistance, and has the property of being able to print regardless of the type of ink by means of a primary coding process.

Referring to FIG. 3 , the FSR sensor 200 may have a form in which a silver pattern 201 is formed on an upper portion of a carbon pattern 202 which is a resistor. The silver pattern 201 includes a "D"-shaped portion of a Korean consonant and a "ㅕ"-shaped portion of a Korean vowel, which are formed to be spaced apart from each other by a predetermined distance. The input voltage VIN is applied to the "D"-shaped portion of the silver pattern 201, and the output voltage VOUT is measured at the "ㅕ"-shaped portion.

In a state where no force is applied to the FSR sensor 200, the “T”-shaped part and the “ㅕ”-shaped part of the silver pattern 201 are not connected to each other, so the output voltage becomes 0V, and the FSR sensor When a force is applied to 200, the "T"-shaped part and the "ㅕ"-shaped part come into contact with the carbon pattern 202, so that an electric current flows from the "T"-shaped part of the silver pattern 201 to the carbon pattern 202 . It flows through the "ㅕ"-shaped portion of the silver pattern 201. Through this process, a different voltage difference is generated according to the degree of force applied to the FSR sensor 200 .

According to the above principle, the FSR sensor 200 can measure the body pressure generated when the user's body comes into contact with the main body 10 .

The plurality of input-side switches 210 are respectively connected to m columns in a matrix form in which the plurality of FSR sensors 200 are arranged. That is, if the plurality of FSR sensors 200 are arranged in an n×m matrix, m number of input-side switches 210 are provided.

An input voltage VIN is applied to the sensor unit 20 through the input side switch 210 . The plurality of input-side switches 210 are controlled by the control module 230 , so that the input voltage can be controlled in units of columns.

The plurality of output-side switches 220 are respectively connected to n rows in a matrix form in which a plurality of FSR sensors 200 are arranged. That is, if the plurality of FSR sensors 200 are arranged in a matrix form of n×m, n number of output-side switches 220 are provided.

An amplifier connected in parallel with each other and a resistor of a predetermined size may be further connected between the FSR sensor 200 and the output-side switch 220 for each row. Here, by changing the electrical resistance connected to the amplifier, there is an effect that the sensitivity of the FSR sensor 200 can be adjusted by about 10%.

The control module 230 may individually control the plurality of input-side switches 210 and the plurality of output-side switches 220 . In this case, the control module 230 may control the driving of the plurality of FSR sensors 200 in units of columns by individually controlling the plurality of input-side switches 210 .

In addition, the control module 230 may convert the output values of the plurality of FSR sensors 200 or the digital values output from the A/D converter 240 into a pressure value. In this case, the control module 230 may convert a resistance value or a digital value into a pressure value by using a lookup table generated in advance according to the material of the cover 120 .

The A/D converter 240 converts analog data into digital values. The analog data converted into digital values by the A/D converter 240 may be resistance values output from the plurality of FSR sensors 200 , or may be pressure values changed by the control module 230 .

The transmission module 250 transmits the digital value converted by the A/D converter 240 , that is, measurement information measured by the sensor unit 20 , to the control unit 30 through a known wired or wireless communication network. At this time, the digital value may be a digital value obtained by digitizing the resistance value output from the FSR sensor 200 as described above, or may be a digital value of the pressure value converted by the control module 230 .

Meanwhile, FIG. 4 shows a COP (Center of Pressure) in the FSR sensor 200 in a square matrix structure. Hereinafter, an embodiment of measuring the pressure value applied to the FSR sensor 200 in a square sensor array structure will be described. do.

As in FIG. 4 , coordinates are determined in a square sensor array, and assuming that the pressure value applied to each sensor is P _ij (for i, j = 1 to 96), the coordinates in the COP for each column are expressed by the following Equation 1 It can be obtained using (1), (2), (3) of

_{The pressure P j} of the COP located in each column can be calculated as the average pressure in each row. _{Therefore, COP x} and COP _y for a square sensor array can be obtained using (4) and (5) of Equation 2 below, respectively.

In the present invention, the coordinates of the FSR sensor 200 constituting the sensor unit 20 can be tracked through the above formula, and through this, the pressure value and body pressure distribution can be calculated in response to the pressure applied when the user's body comes into contact. can be analyzed.

However, in the present invention, the method of analyzing the coordinates of the FSR sensor 200 is not limited to the above, and a unique coordinate information is given to each FSR sensor 200, and the FSR sensor 200 coordinates with the measurement information. By transmitting the information, the position of each FSR sensor 200 may be identified through the control unit 30 .

The control unit 30 collects measurement information measured by the sensor unit 20 and analyzes the user's body pressure distribution characteristics based on the collected measurement information to set a user-customized shift cycle.

And the control unit 30 transmits a control signal to the pump 110 to supply or discharge the floating member 102 to the selected unit sector 100 of the main body 10 according to the set alternating cycle.

Here, the control unit 30 is illustrated as having a terminal form independent of the main body 10 in FIG. 1 , but the present invention is not limited thereto and may be configured in an integrated form with the main body 10 as well as the user's mobile device. It goes without saying that it may be configured in the form of an App (App) that is mounted on a terminal and provides a user interface (UI).

As shown in FIG. 5 , the control unit 30 according to an embodiment of the present invention includes a receiving module 300 , a conversion module 310 , a setting module 320 , a storage module 330 and a driving module 340 . It may be composed of

The receiving module 300 receives a plurality of digital values transmitted from the sensor unit 20 through a wired or wireless communication network. The plurality of digital values correspond to the number of the plurality of FSR sensors 200 constituting the sensor unit 20 . In addition, the digital value input to the control unit 30 through the receiving module 300 may be a digital value for the resistance value for each of the plurality of FSR sensors 200 , or the resistance value for each of the plurality of FSR sensors 200 is determined by the control module It may be a digital value converted into a pressure value by 230 .

The conversion module 310 converts the resistance value into a pressure value when the digital value received through the receiving module 300 is a digital value of the resistance value for each FSR sensor 200 . At this time, the conversion module 310 converts the resistance value into a pressure value using a look-up table that is pre-generated according to the material of the cover 120 of the main body 10 .

The relationship between the resistance value and the pressure value is obtained by storing the data through various experiments in the form of a look-up table, thereby converting the resistance value into the pressure value in the control module 230 of the sensor unit 20 or the conversion module 310 of the control unit 30 . can be converted to

Data on the lookup table may vary depending on the carbon pattern 202 used in manufacturing the FSR sensor 200 . That is, the higher the carbon resistance, the more reliable the measurement for a high load. Also, the data on the lookup table may vary depending on the material of the cover 120 used for the body 10 . Therefore, it is natural that different lookup tables are used according to the manufacturing conditions of the main body 10 .

As such, the control unit 30 according to this embodiment can know the user's body pressure characteristics by using the pressure value of the individual FSR sensor 200 converted by the conversion module 310 , in the case of the FSR sensor 200 . As mentioned above, by transmitting the coordinate information together, it is possible to identify the pressure value applied by each FSR sensor 200 in the entire area of the sensor unit 20 to identify the user's body pressure distribution.

That is, in the present invention, the user's body pressure characteristics refer to the total pressure applied by the user's body during the measurement time of the sensor unit 20, as well as partial pressure by measuring the pressure for each FSR sensor 200, that is, It includes all body pressure distributions for each unit sector 100 .

In addition, although the control unit 30 is not shown in the drawing, a display module for displaying the overall operating state of the pressure ulcer prevention device of the present invention as well as the user's body pressure characteristics analyzed by the measurement of the sensor unit 20 may further include.

The setting module 320 receives the pressure value of the sensor unit 20 converted by the conversion module 310, that is, the user's body pressure characteristics, and based on this, sets and outputs an alternating buoyancy cycle suitable for the user.

Referring to FIG. 6 , tissue damage occurs in the tissues of the human body according to pressure and load time (duration), and the pressure and load time are inversely proportional to the moment when tissue damage occurs.

The results according to the correlation between the pressure and the load time are shown through a variety of known experimental values. damage could occur.

Accordingly, since a user with a lot of weight has relatively high body pressure, it is effective to prevent pressure ulcers by having a shorter shift cycle than a user with a low weight.

Although not shown in the drawing, the setting module 320 includes an input interface for inputting the user's weight, so that the user's weight is input and stored, and the user's weight is reflected in the analyzed body pressure characteristics. It is preferable to set

For example, in the body pressure characteristic, the pressure value may be set to increase or decrease according to an input user's weight.

In addition, the setting module 320 uses the pressure value measured and converted by the FSR sensor 200 as basic data for the alternate levitation setting. It is desirable to allow the pressure to be reflected.

For example, the setting module 320 uses an average load pressure ( force per cell area), and the levitation cycle can be set through the calculated average load pressure.

The average load pressure according to the WMA technique is calculated by reflecting the weight of the newly calculated average load pressure to the previous average pressure.

In this calculation of the average load pressure, the above-mentioned preset measurement time is the time that elapses from the time of the most recent shift to the time measured by the FSR sensor 200, and the measurement time immediately after performing the shift levitation is By initializing to '0', the average load pressure is initialized to the pressure immediately after performing the shift lift.

The setting module 320 uses a linearized characteristic curve (load time-pressure) that causes tissue damage as shown in FIG. 6 according to the correlation between pressure and load time as a known research result as a reference threshold value. , and a linearized characteristic curve (load time-pressure) with a relatively lower numerical value than this is set as an alternating threshold value.

Here, the alternate threshold is preferably set in the range of 50% to 70% of the reference threshold.

In addition, the setting module 320 instructs the shift buoyancy to be performed when the body pressure characteristic of the user analyzed in the same way as above for a preset measurement time exceeds the shift threshold value.

The user can change his/her body pressure autonomously or change his/her body pressure when he/she moves a wheelchair. This may cause a starvation phenomenon that does not occur.

Accordingly, the setting module sets the forced shift threshold time so that the alternating buoyancy can be performed according to the load time regardless of the user's body pressure characteristics, that is, regardless of the pressure value, and the pressure value according to the user's body pressure characteristics is changed in the shift. Even if the threshold value is not exceeded, if the sustained load time reaches the forced shift threshold time, the forced shift levitation is commanded to be performed.

In this case, the forced shift critical time is set to the shift time according to the guidelines of the Korean Society of Nursing, and the preferable shift time may be 1 hour 30 minutes to 2 hours.

The storage module 330 stores various information necessary for the operation of the pressure ulcer prevention device of the present invention. For example, the storage module 330 may store a lookup table pre-created for each material of the cover 120 of the main body 10 used to convert a resistance value into a pressure value.

In addition, the storage module 330 may store the user's body shape information, that is, the user's weight, etc. pre-inputted through the input interface in setting the user's shift support period in the setting module 320, and a new shift support Until the period is set, the preset shift-floating period information may be temporarily stored.

Temporarily stored shift-floating period information is initialized when a new shift-floating period is set after performing the shift-lift, and information on the new shift-floating period may be temporarily stored again.

The driving module 340 receives the shift lift command of the setting module 320, generates it as a control signal, and transmits it to the pump 110 of the main body 10 so that the pump 110 is driven, Thus, the floating member 101 is selectively supplied, maintained, or discharged to the receiving pocket 101 for each unit sector 100 .

On the other hand, the pressure ulcer prevention mat to which the pressure ulcer prevention device of the present invention can be applied includes a cushion that can be used in a wheelchair or chair on which the user sits for a long time, and a mattress or cushion that can be used on a bed or floor on which the user lies for a long time. It can be both mattresses.

The pressure ulcer prevention device of the present invention shown in FIG. 1 and the like is in the form of a cushion that can be used by being placed on a part where a wheelchair patient is seated, but this is only presented as an example for the description of the present invention, but is not limited thereto. Specifically, when the size of the pressure ulcer prevention device of the present invention is matched to a wheelchair, it is placed on the wheelchair and used, but it is natural that the pressure ulcer prevention device can be used by making the size of the pressure ulcer prevention device larger and placing it on a patient bed.

Although preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims are also provided. is within the scope of the

10: body 20: sensor unit
30: control unit 100: unit sector
110: pump 120: cover
200: FSR sensor 210: input side switch
220: output side switch 230: control module
240: A/D converter 250: transmission module
300: receiving module 310: conversion module
320: setting module 330: storage module
340: drive module

Claims (10)

a body having a plurality of receiving pockets arranged to have unit sectors and provided with a pump for supplying or discharging the floating member to each unit sector;
a sensor unit provided on the upper portion of the body to measure the pressure applied by the user; and
The measurement information measured by the sensor unit is collected, and the user's body pressure characteristics are analyzed based on the collected measurement information to set a user-customized shift cycle, and according to the set shift cycle, a lifting member is supplied to the selected unit sector of the body or Includes; a control unit for transmitting a control signal to the pump to discharge;
The control unit is
A linearized load time-pressure characteristic curve, which causes tissue damage according to the correlation between pressure and load time, is set as the reference threshold value, and the linearized load time-pressure relationship whose numerical value is relatively lower than the reference threshold value An embedded pressure sore using a user's body pressure characteristic, characterized in that a characteristic curve is set as an alternate threshold value, and a control signal is generated and output to perform alternate flotation when the analyzed user's body pressure characteristic exceeds the alternate threshold value prevention device.
The method of claim 1,
The sensor unit,
An embedded pressure ulcer prevention device using a user's body pressure characteristics, characterized in that a plurality of Force Sensing Resistor (FSR) sensors are aligned in the longitudinal and lateral directions to form a matrix.
The method of claim 1,
The control unit is
The embedded pressure ulcer prevention device using the user's body pressure characteristics, characterized in that the user's weight is input and stored, and an alternating period is set to reflect the inputted user's weight in the body pressure characteristics.
delete The method of claim 1,
The control unit is
An embedded pressure ulcer prevention device using a user's body pressure characteristics, wherein the data measured by the sensor unit for a preset measurement time is calculated as an average load pressure value and reflected in the user's body pressure characteristic analysis.
The method of claim 1,
The control unit is
An embedded pressure ulcer prevention device using the user's body pressure characteristics, characterized in that the alternating threshold is set in a range of 50% to 70% of the reference threshold.
The method of claim 1,
The control unit is
The forced shift threshold time is set so that the shift flotation can be performed according to the load time regardless of the user's body pressure characteristics, and the sustained load time is the forced shift even if the pressure value according to the user's body pressure characteristics does not exceed the shift threshold value. An embedded pressure ulcer prevention device using the user's body pressure characteristics, characterized in that it generates and outputs a control signal to perform forced shift lift when the shift critical time is reached.
8. The method of claim 7,
The embedded pressure sore prevention device using the user's body pressure characteristics, characterized in that the forced shift critical time is 1 hour 30 minutes to 2 hours.
The method of claim 1,
The buoyancy member is an embedded type pressure ulcer prevention device using the user's body pressure characteristics, characterized in that any one of air, water, and gel.
10. A pressure ulcer prevention mat using an embedded type pressure ulcer prevention device using the user's body pressure characteristics, comprising the device of any one of claims 1, 2, 3, 5 to 9.

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