CN108392343B - Pressure sensitive mattress system - Google Patents
Pressure sensitive mattress system Download PDFInfo
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- CN108392343B CN108392343B CN201711403621.4A CN201711403621A CN108392343B CN 108392343 B CN108392343 B CN 108392343B CN 201711403621 A CN201711403621 A CN 201711403621A CN 108392343 B CN108392343 B CN 108392343B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/30—General characteristics of devices characterised by sensor means
- A61G2203/34—General characteristics of devices characterised by sensor means for pressure
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Invalid Beds And Related Equipment (AREA)
Abstract
The invention relates to a pressure sensitive mattress system, characterized in that it comprises: the mattress body consists of support devices arranged in a matrix; a human body contour recognition unit arranged around the mattress body; and (4) a computer. The invention transmits the status of the pressed part of the body of the bedridden patient to a computer system through a pressure sensor, performs system analysis on the data, and automatically adjusts a mattress supporting device through the sensor, thereby achieving the purposes of preventing pressure sores and promoting the healing of the pressure sores; meanwhile, the nursing staff can use the data to carry out scientific judgment, and the nursing service quality and efficiency are improved.
Description
Technical Field
The invention relates to a mattress system which is suitable for patients who lie in bed for a long time, have spinal cord injury, dyskinesia, limited body positions, sensory dysfunction, no self-care ability and the like, and can prevent and reduce pressure sores and promote the healing of the pressure sores.
Background
At present, patients who are bedridden for a long time, have spinal cord injury, dyskinesia, limited body position, serious cognitive dysfunction, no self-care ability and the like cannot change the body position by themselves, so that local tissues of the body are stressed for a long time, blood circulation disorder occurs, and tissue damage and necrosis caused by continuous ischemia, hypoxia and malnutrition occur to form pressure sores. Pressure sores are not primary diseases, and are mostly complications caused by that other primary diseases are not well nursed; once pressure sores occur, the pain of the patient is increased, the recovery time is prolonged, and in severe cases, the secondary infection can cause septicemia and even endanger life.
At present, various pressure sore evaluation risk scales are clinically used for evaluating high-risk factors of pressure sores of patients, and the aspects of the pressure range, degree, duration and the like of local tissues of a body are only limited to the judgment of clinical personal experience. Nurses must strengthen nursing the bedridden patients in daily nursing work and reduce the occurrence of pressure sores, but at present, due to the lack of nursing staff all over the world, nursing staff integrates treatment, nursing and health guidance, so that the clinical nursing work is inadvisable, and the nurses sometimes can be distracted from turning over the patients regularly, so that the pressure sores of the patients are caused.
At present, China has become the country with the most old population in the world and is one of the countries with the fastest population aging and development speed. It is expected that by 2040 years old 65 and older the population will be over 20% of the total population. Meanwhile, the aging trend of the elderly population is increasingly obvious: elderly people aged 80 years and older are increasing at a rate of 5% per year, to as many as 7400 million people by 2040 years. In 2006, the state issues and implements policy documents such as ' eleven five ' planning outline of national economy and social development ', opinions on accelerating socialization of social welfare ', opinions on accelerating development of the endowment service industry ' and the like, encourages and mobilizes social strength, and promotes the quick development of endowment institutions. At the end of 2005, there were 39546 endowment service institutions such as the welfare institute, the asylum for aged, the apartment for elderly and the nursing home for elderly in urban and rural areas of China, and the total bed position was 149.7 ten thousand, wherein 29681 of the asylum for aged in rural areas and towns, and the total bed position was 89.5 ten thousand. Therefore, the nursing staff will face a larger service crowd in future. While the American registered nurses account for 9.16% of every thousand population, the Chinese registered nurses only account for 1.72% of every thousand population, and the Chinese nursing staff is seriously in short supply.
The existing mattress has no sensing function, cannot sense the pressure of the pressed part of the bedridden patient, and cannot automatically adjust the pressure of the pressed part of the bedridden patient, so that pressure sores are easy to occur if the patient lying in bed for a long time cannot be effectively nursed and turns over to adjust the position in time. Although the pressure reducing devices such as an air cushion bed, an air ring and the like exist in clinic at present, the pressure reducing devices are not combined with a mattress; if discover to press sore high risk patient, medical personnel need put into these pressure relief device in addition, have increaseed nursing work load. In addition, if the patient's posture movement is restricted due to spinal cord injury or critical illness, the patient's condition may change while the medical care personnel add these pressure relief devices.
Disclosure of Invention
The purpose of the invention is: preventing pressure sores formed by patients lying in bed for a long time; promoting the healing of pressure sores.
In order to achieve the above object, the present invention provides a pressure-sensitive mattress system, comprising:
the mattress body consists of support devices arranged in a matrix; each supporting device is provided with a pressure sensor, and the pressure of a user lying on the mattress body to the current supporting device is measured through the pressure sensor; the upper end of each supporting device has elasticity and pressure self-adaptive deformability; all the supporting devices are adjusted in height under the control of a computer, so that the pressure of each supporting device on each corresponding part of a user is adjusted;
the computer identifies the body contour information of a user through the body contour identification unit and calculates to obtain the position information of the current body contour relative to the mattress body so as to obtain the position information of each part of the user;
a computer, which combines the body contour information, the position information of each part of the human body and the pressure measured by each pressure sensor to obtain a body weight pressure distribution topographic map, wherein the body weight pressure distribution topographic map takes time as a horizontal axis and pressure as a vertical axis, obtains a body weight pressure distribution area according to the body weight pressure distribution topographic map, then combines the body weight of a user to calculate and obtain average pressure = body weight/body weight pressure distribution area, if the pressure measured by a certain pressure sensor is greater than the average pressure, the computer controls the corresponding supporting device to slowly shift downwards to reduce the pressure at a certain speed, if the pressure measured by a certain pressure sensor is less than the average pressure, the computer controls the corresponding supporting device to slowly shift upwards to increase the pressure at a certain speed, after all the supporting devices are adjusted in place, the computer recalculates the average pressure, and adjusting each supporting device according to the new average pressure.
Preferably, the human body contour recognition unit comprises an infrared camera and a reference infrared light source, a three-dimensional coordinate system is established by taking the central point of the mattress body as an origin, the long axis of the mattress body as an x axis and the short axis as a y axis, and a straight line which is perpendicular to the plane of the mattress body and passes through the origin as a z axis, and the infrared camera is respectively arranged along the x axis, the y axis and the z axis of the three-dimensional coordinate system; reference infrared light sources are respectively arranged on the periphery of the mattress body; and the computer acquires the body contour information by using an infrared camera and a reference infrared light source based on an infrared imaging technology.
Preferably, the height of the supporting device is changed according to a preset sine curve wave shape under the control of the computer.
Preferably, the supporting device adopts a mechanical arm or a chamber connected with the water filling device through a pipeline.
The invention provides a pressure sensitive mattress system device, which transmits the status of the pressed part of the body of a bedridden patient to a computer system through a pressure sensor, performs system analysis on data, and automatically adjusts a mattress supporting device through the sensor, thereby achieving the purposes of preventing pressure sores and promoting the healing of the pressure sores; meanwhile, the nursing staff can use the data to carry out scientific judgment, and the nursing service quality and efficiency are improved.
The invention has the following advantages:
1) the pressure of the apophysis part when the patient lies in bed is sensed by the sensors, the pressure sore susceptible part is predicted, detailed data are provided for nursing staff, and scientific basis is provided for clinical judgment.
2) The adjustable mattress body is realized through the supporting device, so that the mattress body is shaped according to the body of a patient, the contact area of the bed surface and the skin of the patient is enlarged, the pressure of the skin of the patient in unit area is reduced, and pressure sores are prevented.
3) The height of the supporting device is changed, so that the weight pressure is alternately borne by the supporting devices at different positions, the long-term compression of local tissues is avoided, and the pressure sores are prevented.
4) According to the data monitored by the baroreceptor, the early warning can be sent to remind a nursing staff to assist in changing the body position in time, and pressure sores are prevented from occurring. For the patient who has already had the pressure sore, can make the strutting arrangement height that the pressure sore position corresponds change, reduce even get rid of the skin pressure at pressure sore position, promote the pressure sore healing.
Detailed Description
In order that the invention may be more readily understood, preferred embodiments will now be described in detail.
The pressure sensing mattress system provided by the invention consists of a software component and a hardware component. The hardware part comprises a computer, a data transmission line, a mattress body and a human body outline identification unit. The software part comprises a position information calculation module, a pressure information calculation module, a result output module and an instruction output module.
The human body contour recognition unit comprises an infrared camera and a reference infrared light source. The three-dimensional coordinate system is established by taking the center point of the mattress body as an original point, the long axis of the mattress body as an x axis, the short axis of the mattress body as a y axis and a straight line which is perpendicular to the plane of the mattress body and passes through the original point as a z axis. In the three-dimensional coordinate system, infrared cameras are respectively arranged along an x axis, a y axis and a z axis and are used for shooting and acquiring images containing a detected person and a reference infrared light source. The periphery of the mattress body is provided with a reference infrared light source. The position information calculation module of the computer acquires body contour information of a user lying on the mattress body based on an infrared imaging technology according to information acquired by the infrared camera, and then calculates position information (mainly four-limb position information and chest wall position information) of each part of the body of the user relative to the mattress body by adopting a human body contour recognition technology, and the obtained position information can be output by the result output module.
The mattress body is composed of a supporting net frame and supporting devices which are arranged in a matrix and are mutually independent. Each supporting device is provided with a pressure sensor, and the upper end of each supporting device has elasticity and pressure self-adaptive deformability. The position information of each supporting device and the pressure data measured by the pressure sensors are transmitted to a position information calculation module and a pressure information calculation module which are operated on a computer, after the position information of each part of the body of the user relative to the mattress body is obtained through the position information calculation module, a weight pressure distribution topographic map can be obtained by combining the pressure data measured by the pressure sensors, and the weight pressure distribution topographic map takes time as a horizontal axis and pressure as a vertical axis. During continuous monitoring, the pressure load of the skin at each part can be obtained by calculating the area under the curve, and the pressure sore susceptible part is predicted according to the pressure load. The method comprises the steps of obtaining a weight pressure distribution area according to a body weight pressure distribution topographic map, calculating to obtain average pressure = weight/body weight pressure distribution area according to the body weight of a user, controlling a corresponding supporting device to slowly shift downwards to enable the pressure to be reduced at a certain speed if the pressure measured by a certain pressure sensor is larger than the average pressure, controlling the corresponding supporting device to slowly shift upwards to enable the pressure to rise at a certain speed if the pressure measured by a certain pressure sensor is smaller than the average pressure, recalculating the average pressure by a computer after all the supporting devices are adjusted in place, and adjusting each supporting device according to the new average pressure. According to the pressure data, the instruction output module sends out instructions to enable the supporting devices at different positions to adjust the height, so that the bed surface is shaped according to the body contour of a patient, the contact area of the bed surface and the skin is enlarged, the pressure of the skin in unit area is reduced, and the purpose of preventing pressure sores is achieved.
The invention leads the supporting devices at different positions to change the height in a sine curve way in sequence, leads the supporting devices to form wheat wave type fluctuation, and leads the weight pressure to be born by the supporting devices at different positions in a wheel-to-wheel way. The sine curve type fluctuation direction of the supporting device can pass through the original point along the x axis and the y axis or start at any point on the periphery of the bed body and end at the edge of the bed body at the opposite side. The parameters of the frequency, amplitude, direction, etc. of the fluctuation are controlled by the program.
The support means may be a chamber connected to the water filling means by a conduit. The upper part of the chamber is made of elastic material, can protrude out of the surface of the support net rack after being filled with water, and can deform after being pressed. The chambers are pre-filled with water to equalize the pressure in each chamber, and the pressure in the chambers changes after the patient gets into bed. If the pressure is required to be reduced, the water filling is reduced, and the chamber is retracted; if the pressure is required to rise, the water filling amount in the cavity is increased, and the cavity protrudes, so that the bed surface is shaped according to the body of the patient, the contact area of the bed surface and the skin of the patient is enlarged, and the pressure of the skin of the patient in unit area is reduced.
The patient is lying on the back, and the skin has pressure sores. The chambers fluctuate from the head to the lower limbs along the x axis, the chambers corresponding to the head, the neck and the shoulders and the back are filled with water and increased, the chambers protrude to bear more pressure loads, after the peak value is reached, the water filling of the chambers corresponding to the head, the neck, the shoulders and the back is reduced, the chambers retract, the water filling of the chambers corresponding to the back is increased, the chambers protrude to bear more pressure loads, the water filling of the chambers corresponding to the back is reduced after the peak value is reached, the chambers retract, the water filling of the chambers corresponding to the sacral tail and the lower limbs is increased, the chambers protrude to bear more pressure loads. The pressure load born by each chamber is periodically changed in a sine curve shape, and the whole mattress is fluctuated in a wheat wave shape.
The support device of the present invention may also employ a robotic arm. The mechanical arms can be extended or shortened by receiving an instruction sent by the instruction output module, each mechanical arm is provided with a pressure sensor, and the plane of the upper end of each mechanical arm can change an angle according to the pressure so that the pressure is perpendicular to the plane of the upper end of each mechanical arm.
Before the patient gets to bed, a software system is started, and data measured by the mechanical arm baroreceptor at the moment is the weight of the mechanical arm. After the patient gets into bed, the data measured by the pressure sensor changes, the position information of the mechanical arm and the pressure change information measured by the pressure sensor are transmitted to a program, and a body weight pressure distribution topographic map can be obtained through program calculation by combining the position information of the patient body, so that the pressure sore susceptible part is predicted.
According to the pressure data, the program sends out an instruction to enable the mechanical arm with high pressure to retract, the mechanical arm with low pressure to extend, and meanwhile, the plane of the upper end of the mechanical arm changes the angle according to the pressure, so that the bed surface is shaped according to the body of a patient, the contact area of the bed surface and the skin of the patient is increased, and the pressure of the skin of the patient in unit area is reduced.
The patient lies on the side, the pelvis has pressure sore, the position and range information input procedure of the pressure sore. The mechanical arm generates fluctuation from the lower limb to the head along the x axis, the mechanical arm corresponding to the pelvis part of the lower limb is extended firstly to bear more pressure load, the mechanical arm corresponding to the pelvis part of the lower limb retracts after the peak value is reached, meanwhile, the mechanical arm corresponding to the abdomen is extended to bear more pressure load, the mechanical arm corresponding to the abdomen retracts after the peak value is reached, and meanwhile, the mechanical arms corresponding to the head, the neck and the chest are extended to bear more pressure load. The pressure load born by each mechanical arm is periodically changed in a sine curve shape, and the whole mattress is fluctuated in a wheat wave shape.
For the patient who has already had the pressure sore, can input the positional information input procedure of pressure sore, the procedure sends the instruction according to this and changes the height to strutting arrangement, reduces even gets rid of the skin pressure of pressure sore position, and the pressure that the healthy skin of periphery bore is corresponding increases, promotes the healing of pressure sore.
According to the pressure data, the invention can also send out early warning to remind nursing staff to assist the patient to change the body position.
The invention has the following advantages:
1) the pressure of the pressed part of the body is sensed through the baroreceptor, so that detailed data are provided for nursing staff, and scientific basis is provided for clinical judgment.
2) The body contour information of a patient is acquired by the infrared imaging technology through the pressure sensors at different positions in the mattress, the pressure change of the pressed part of the user in bed is transmitted to a program, and the pressure sore part is predicted.
3) The heights of the supporting devices at different positions are changed in sequence, so that the supporting devices form wave-like fluctuation, the weight pressure is alternately borne by the supporting devices at different positions, and the pressure borne by the skin in unit area is reduced, thereby achieving the purposes of preventing pressure sores and promoting the healing of the pressure sores.
4) Can send out early warning to remind nursing staff to assist the patient to change the body position.
5) The mattress utilizes infrared ray formation of image and need not contact patient, does not need visible light source, does not influence patient's rest.
6) The application range is wide, and the device is not only suitable for various clinical hospitals, but also suitable for nursing homes, rehabilitation nursing homes and the like.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The description is thus to be regarded as illustrative instead of limiting.
Claims (4)
1. A pressure-sensitive mattress system, comprising:
the mattress body consists of support devices arranged in a matrix; each supporting device is provided with a pressure sensor, and the pressure of a user lying on the mattress body to the current supporting device is measured through the pressure sensor; the upper end of each supporting device has elasticity and pressure self-adaptive deformability; all the supporting devices are adjusted in height under the control of a computer, so that the pressure of each supporting device on each corresponding part of a user is adjusted;
the computer identifies the body contour information of a user through the body contour identification unit and calculates to obtain the position information of the current body contour relative to the mattress body so as to obtain the position information of each part of the user;
a computer, which combines the body contour information, the position information of each part of the human body and the pressure measured by each pressure sensor to obtain a body weight pressure distribution topographic map, wherein the body weight pressure distribution topographic map takes time as a horizontal axis and pressure as a vertical axis, a body weight pressure distribution area is obtained according to the body weight pressure distribution topographic map, then the body weight of a user is calculated to obtain an average pressure which is the body weight/body weight pressure distribution area, if the pressure measured by a certain pressure sensor is greater than the average pressure, the computer controls the corresponding supporting device to slowly shift downwards to reduce the pressure at a certain speed, if the pressure measured by a certain pressure sensor is less than the average pressure, the computer controls the corresponding supporting device to slowly shift upwards to increase the pressure at a certain speed, and after all the supporting devices are adjusted in place, the computer recalculates the average pressure, and adjusting each supporting device according to the new average pressure.
2. A pressure-sensitive mattress system as claimed in claim 1, wherein the human body contour recognition unit comprises an infrared camera and a reference infrared light source, a three-dimensional coordinate system is established with the center point of the mattress body as an origin, the major axis of the mattress body as an x-axis, the minor axis as a y-axis, and a straight line passing through the origin and perpendicular to the plane of the mattress body as a z-axis, and the infrared camera is respectively arranged along the x-axis, the y-axis and the z-axis of the three-dimensional coordinate system; reference infrared light sources are respectively arranged on the periphery of the mattress body; and the computer acquires the body contour information by using an infrared camera and a reference infrared light source based on an infrared imaging technology.
3. A pressure sensitive mattress system according to claim 1 wherein the height of said support means varies in a predetermined sinusoidal wave pattern under the control of said computer.
4. A pressure sensitive mattress system according to claim 1 wherein said support means comprises a robotic arm or chamber connected to the water filling means by tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711403621.4A CN108392343B (en) | 2017-12-22 | 2017-12-22 | Pressure sensitive mattress system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711403621.4A CN108392343B (en) | 2017-12-22 | 2017-12-22 | Pressure sensitive mattress system |
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| CN108392343A CN108392343A (en) | 2018-08-14 |
| CN108392343B true CN108392343B (en) | 2019-12-31 |
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| CN201711403621.4A Active CN108392343B (en) | 2017-12-22 | 2017-12-22 | Pressure sensitive mattress system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109276389A (en) * | 2018-10-25 | 2019-01-29 | 广州市妇女儿童医疗中心 | Intelligent pressure control module mattress and its control method |
| CN111637928A (en) * | 2020-07-10 | 2020-09-08 | 雷士实业(香港)有限公司 | Method and equipment for acquiring prone position stress data of human body on mattress |
| CN114145711B (en) * | 2021-11-16 | 2023-07-18 | 北京中医药大学东直门医院 | Monitoring system for preventing human body pressure injury |
| CN114557572A (en) * | 2022-04-29 | 2022-05-31 | 慕思健康睡眠股份有限公司 | Physiological characteristic monitoring method for baby and intelligent mattress |
| CN114983712A (en) * | 2022-06-01 | 2022-09-02 | 郑州大学第一附属医院 | Bedsore-prevention mattress partition control system for nursing of old people |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697935A (en) * | 2009-06-07 | 2010-04-28 | 周秋来 | Intelligent and ecological healthy sleep system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103830059A (en) * | 2014-03-26 | 2014-06-04 | 吴小玲 | Multifunctional array type stand column bed |
| CN204766254U (en) * | 2015-04-10 | 2015-11-18 | 张圣 | Multifunctional nursing bed |
| CN104800018A (en) * | 2015-05-13 | 2015-07-29 | 李坤营 | Body position alarming combination system for preventing pressure sore |
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- 2017-12-22 CN CN201711403621.4A patent/CN108392343B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697935A (en) * | 2009-06-07 | 2010-04-28 | 周秋来 | Intelligent and ecological healthy sleep system |
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