Multifunctional examination bed and body index detection method thereof

By using a multi-functional examination bed to classify information and employ two status detection methods, combined with infrared and mechanical detection, the problem of difficulty in measuring the height and weight of critically ill patients after surgery has been solved, ensuring the accuracy of BMI values ​​and the rationality of rehabilitation plans.

CN119454384BActive Publication Date: 2025-12-19THE FIRST PEOPLES HOSPITAL OF NANTONG
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Patent Information

Application Number
CN202411686434.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-23
Publication Date
2025-12-19
Estimated Expiration
2044-11-23

AI Technical Summary

Technical Problem

Postoperative height and weight are difficult to measure in critically ill patients, resulting in uncertain BMI values, which affects the formulation of rehabilitation plans. Furthermore, irregular bed rest postures make height measurement difficult.

Method used

A multifunctional examination bed is designed to classify patients by information transmission system, and to detect height and weight using two states of the inflatable bed. Combining infrared technology and mechanical detection, the accuracy and stability of the detection are ensured, and the bed can adapt to different postoperative postures of patients.

Benefits of technology

It enables accurate measurement of postoperative patient height and weight, ensures reliable BMI calculation, provides appropriate rehabilitation plans, and solves the measurement difficulties caused by irregular patient posture.

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Patent Text Reader

Abstract

The present application relates to the field of intelligent detection, in particular to a multifunctional examination bed and a body index detection method thereof; the multifunctional examination bed is set to two states to detect the body weight respectively, the stability and accuracy of the body weight detection are ensured, the mechanical detection is switched to the second state in the case of electronic detection failure in the first state, the problem of electronic detection is prevented, the body weight and BMI are monitored for a long time to correspond to the appropriate postoperative rehabilitation mode, and the height of the patient in different postoperative conditions is detected through different height detection strategies, so that the problem of the height of the patient who cannot move after operation is detected is solved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent detection, in particular to a multifunctional examination bed and a body index detection method thereof. BACKGROUND

[0002] At present, the postoperative treatment and rehabilitation plan of many critical patients are closely related to BMI, but the height, weight and body shape change of critical patients after surgery are difficult to measure because they cannot get out of bed, which causes two problems, first, the uncertainty of height and weight and the uncertainty of change value lead to the inability to accurately monitor the BMI value of the patient, making it difficult to develop some postoperative rehabilitation plans, second, for some back, waist and leg surgeries, the patient's posture in bed is irregular and cannot lie flat most of the time, making it very difficult to measure height, the invention patent with publication number CN113855000A discloses a bed sheet and measurement method for measuring the height of a patient in bed, due to the setting of the scale line on the bed sheet body, the patient can measure the height according to the scale value of the scale line when lying on the bed, and the setting of the zero line facilitates medical staff to quickly find the reference position, improving the efficiency of height measurement; the invention patent with publication number CN117959107A discloses a body weight measuring device for bedridden patients, which can calculate the body weight of the patient lying on the lying board according to the measured value of the tension sensing device. After measurement, the lying board is lowered to stick to the patient bed, and the patient can leave the lying board by moving a little and lying on one side; then the device can be removed, the invention can measure the body weight of multiple patients at the same time, the utility model patent with publication number CN221731296U discloses a bed board that can measure body weight and height, thanks to the cooperation of the bed board body, the sliding groove, the first limiting piece, the infrared distance receiving device and the infrared distance transmitter, when the bed board body is used to assist the patient in passing through the bed, the first limiting piece and the second limiting piece can be tightly attached to the patient's head and feet respectively, then the distance between the first limiting piece and the second limiting piece is measured by the infrared distance receiving device and the infrared distance transmitter, so that the patient's height data can be quickly measured, and at the same time, the cooperation of the bed board body, the electronic weighing plate and the body weight display screen can make the patient quickly detect the body weight data through the electronic weighing plate after the bed board body is positioned; it can be seen that the measuring bed in the prior art measures the patient by using the traditional height and weight measurement method, and does not consider the inaccuracy of weight measurement, the non-standard long-term record and the inaccuracy of patient posture in height measurement. SUMMARY

[0003] In order to solve the above technical problems, the present application provides a multifunctional examination bed and a body index detection method thereof.

[0004] A multifunctional examination bed and a body index detection method thereof, comprising the following steps:

[0005] Step one: classify the patient, according to the operation of the bed patients are divided into grade I, grade II, grade III.

[0006] Further, step two: the patient's classification and initial physical condition through the information transmission system to the information storage system, information storage system is provided with height information storage system, weight information storage system, BMI information storage system; wherein the weight information storage system and BMI information storage system in the information according to the number of days in bed for real-time update.

[0007] Further, step three: the patient in grade I-III after surgery on the multifunctional examination bed, multifunctional examination bed has a first state and a second state, in the initial time the multifunctional examination bed is set to the first state.

[0008] Further, step four: the multifunctional examination bed and the control device are connected, and the control device sends a signal to the multifunctional examination bed to detect the height and weight of the patient on the bed.

[0009] Further, step five: before detecting the height, first determine the patient's level according to the patient's information in the information storage system, and make specific height detection strategy according to the patient's level.

[0010] Further, step six: the first time to detect the weight data of the patient is in the first state of the examination bed, and the weight of the patient is detected at a certain time every day through the control device.

[0011] Further, step seven: after detecting the weight of the patient in the first state of the examination bed, the first state of the examination bed is monitored, if the monitoring is normal, the weight information of the day is transmitted to the weight information storage system in the information storage system, if the monitoring is abnormal, the examination bed is changed to the second state.

[0012] Further, step eight: after detecting the weight and height information of the day, the BMI information is calculated and transmitted to the BMI information storage system.

[0013] Further, step nine, when the examination bed is in state one, the weight of the patient is detected every day, and the detection result is monitored after each day detection, if the data is wrong, the examination bed is changed to the second state.

[0014] Further, step ten, according to the measured height data of the patient and the daily monitored weight data of the patient, the corresponding BMI value is calculated and updated in the information storage system, and the rehabilitation plan of the patient is customized according to the updated value every day.

[0015] Further, in step one, the surgery scale is small, and the patient after surgery can change posture on the bed, which is classified as grade I; the surgery scale is medium, and the patient after surgery cannot change posture on the bed by himself but can change posture with the help of the doctor, which is classified as grade II; the surgery scale is large, and the patient after surgery cannot change posture on the bed, which is classified as grade III.

[0016] Further, in step three, the multifunctional examination bed is an inflatable bed, the first state of which is an inflation support state, and the second state of which is a deflation compression state; the multifunctional examination bed is provided with an inflatable layer, and the inflatable layer is inflated by an inflation device.

[0017] Further, in step three, the multifunctional examination bed is provided with a support layer below the inflatable layer and a sensing layer above the inflatable layer, and a plurality of body weight detection sensing units are arranged in the sensing layer at each position.

[0018] Further, in step three, each body weight detection sensing unit comprises a sensor unit, a converter unit, and a data transmitter unit; the sensor unit comprises a sensor circuit, the sensor circuit comprises a Uv positive electrode and a Uv negative electrode and a connecting circuit connected between the Uv positive electrode and the Uv negative electrode, four strain resistance R1, R2, R3, and R4 are arranged on the connecting circuit, when the four strain resistances detect a change in weight, the resistances change, the sensor circuit is connected with the converter unit, the converter unit is an AD converter, the AD converter amplifies the voltage data and transmits the voltage data to the data transmission unit, and the data transmission unit is a data transmitter.

[0019] Further, in step three, the body weight detection sensing unit is provided as N, the sensor circuits of the N body weight detection sensing units are connected through the converter unit and the data transmitter unit, the N data transmitters are connected through the connecting line, the N data transmitters can exchange and monitor their own data, and if the data is accurate after data exchange and monitoring, the data is transmitted to the display screen for display.

[0020] Further, in step three, the first state of the multifunctional examination bed is the inflation state, and the second state of the multifunctional examination bed is the deflation state, four compression springs are arranged at the four corners of the bottom of the multifunctional examination bed, a stretching spring is connected in the middle of the multifunctional examination bed, and each of the four compression springs is provided with a connecting rod connected with the stretching part of the stretching spring.

[0021] Further, in step five, the multifunctional examination bed is divided into M dividing lines from the head to the tail of the bed, the dividing lines are parallel to the head, and the first region, the second region, the third region, and the Mth region are formed between adjacent dividing lines; the adjacent X cm between the upper and lower dividing lines in each region.

[0022] Further, in step five, if the patient belongs to level I according to the information storage system, the patient lies on the bed by himself, and the height of the patient is obtained by transmitting infrared rays to the top of the head and the sole of the foot of the patient.

[0023] Further, in step five, if the patient belongs to level III according to the information storage system, first, the lying posture of the patient is observed, if the posture is not flat lying, first, the position of the top of the head of the patient is determined by using infrared technology, a straight line segment is drawn from the top of the head of the patient downward, and the specific position of the foot of the patient is determined by using infrared technology, and the angle between the foot position of the patient and the straight line segment is alpha.

[0024] Further, in step five, the length from the top of the head to the foot of the patient in the curled state of level III is L1 measured by infrared rays. 0, Then, the height of the patient is estimated, and the region of the head of the patient and the region of the foot of the patient on the examination bed are recorded, the region of the head is recorded as the first A region, the region of the foot is recorded as the first B region, and the A region and the B region are between the 1-M regions, the length between the upper part of the A region and the lower part of the B region is L2, and the average value between the detection L1 and L2 is taken as the height of the patient.

[0025] Further, in step seven, after the weight of the patient is detected in the first state, the normal and abnormal information of the weight is determined in the data transmitter of each weight detection sensing unit, and since the information between each data transmitter can be transmitted and shared, if the data of a certain weight detection sensing unit is abnormal, it is determined that the weight detection data in the first state is inaccurate, the gas in the inflatable layer is discharged to change the bed body into the second state, and the weight of the patient is measured by using the Hook's law through the deformation of the tensile spring and the compression spring of the bed bottom.

[0026] Compared with the prior art, the beneficial effects of the present application are:

[0027] The present application sets the multifunctional examination bed into two states to detect the weight, ensures the stability and accuracy of the weight detection, switches to the mechanical detection in the second state in the case of electronic detection failure in the first state, prevents the problem of electronic detection, and long-term monitors the weight and BMI to correspond to the appropriate postoperative rehabilitation mode, and detects the height of the patient by different height detection strategies, solves the problem that the height of the patient with a postoperative posture cannot be detected. BRIEF DESCRIPTION OF DRAWINGS

[0028] ATTACH Figure 1Fig. 1 is a schematic diagram of a single weight detection sensor.

[0029] Fig. 2 is a schematic diagram of a weight detection sensor. Figure 2 Fig. 3 is a schematic diagram of an overall weight detection sensor.

[0030] Fig. 4 is a schematic diagram of a bed body layering diagram. Figure 3

[0031] Fig. 5 is a schematic diagram of a height detection diagram. Figure 4

[0032] Fig. 6 is a schematic diagram of a bed body second state diagram. Figure 5

[0033] Fig. 1 is a schematic diagram of a multi-functional examination bed; 2 is a compression spring; 3 is a tension spring; 4 is a connecting rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0035] A multi-functional examination bed and a body index detection method thereof, comprising the following steps: step one, classifying patients, classifying bedridden patients into grade I, grade II and grade III according to the operation situation; classifying patients with small operation scale and who can change posture on the bed after operation into grade I; classifying patients with medium operation scale and who can change posture on the bed with the help of doctors after operation into grade II; and classifying patients with large operation scale and who cannot change posture on the bed after operation into grade III.

[0036] Step two, transmitting the classification of patients and the initial body condition to an information storage system through an information transmission system, and setting a height information storage system, a weight information storage system and a BMI information storage system in the information storage system; and updating the information in the weight information storage system and the BMI information storage system in real time according to the number of days of bedridden.

[0037] ​​​Step three: the patient in grade I-III is placed on the multifunctional examination bed after surgery, the multifunctional examination bed has a first state and a second state, and the multifunctional examination bed is set in the first state at the beginning; the multifunctional examination bed is an inflatable bed, the first state is an inflation support state, and the second state is a deflation compression state; the multifunctional examination bed is provided with an inflatable layer, the inflatable layer is inflated by an inflation device; the multifunctional examination bed is provided with a support layer below the inflatable layer, an sensing layer above the inflatable layer, and a plurality of body weight detection sensing units arranged in the sensing layer at each position; each body weight detection sensing unit comprises a sensor unit, a converter unit and a data transmitter unit; the sensor unit comprises a sensor circuit, the sensor circuit comprises a Uv positive electrode and a Uv negative electrode and a connecting circuit connected between the Uv positive electrode and the Uv negative electrode, and four strain resistance R1, R2, R3 and R4 are arranged on the connecting circuit; when the four strain resistances detect weight change, the resistance changes; the sensor circuit is connected with the converter unit, the converter unit is an AD converter, the AD converter amplifies the voltage data and transmits it to the data transmission unit, and the data transmission unit is a data transmitter; the body weight detection sensing unit is provided with N body weight detection sensing units, the sensor circuits of the N body weight detection sensing units are connected through the converter unit and the data transmitter unit, the N data transmitters are connected through the connecting line, and the data of each data transmitter can be exchanged and monitored; after the data is exchanged and monitored, if the data is accurate, it is transmitted to the display screen for display; the first state of the multifunctional examination bed 1 is the inflation state, the second state is the deflation state, the four corners of the bottom of the multifunctional examination bed are provided with four compression springs 2, the multifunctional examination bed is connected with a stretching spring 3 in the middle, and the four compression springs 2 are provided with a connecting rod 4 connected with the stretching part of the stretching spring.

[0038] Step four: connect the multifunctional examination bed and the control device, and send a signal to the multifunctional examination bed through the control device to detect the height and weight of the patient on the bed.

[0039] Step five: before detecting the height, first determine the patient's level according to the patient's information in the information storage system, and make specific height detection strategy according to the patient's level; the multifunctional examination bed is divided into M partition lines from the head to the tail of the bed, the partition lines are parallel to the head, and the first region, the second region, the third region... and the M region are formed between the adjacent partition lines; the upper and lower partition lines in each region are adjacent X cm, if the patient belongs to grade III according to the information in the information storage system, first observe the patient's lying posture, if the posture is curled and not flat, first determine the patient's head position by using infrared technology, draw a straight line segment from the patient's head downward, and determine the specific position of the patient's feet by using infrared technology, the included angle between the patient's feet position and the straight line segment is α, and the length from the head to the feet of the grade III patient in the curled state is L measured by infrared rays 0,Then the height of the patient L1 is estimated as { (L0 x sin a) + (K x X)} cm, and the area of the examination bed where the head of the patient is located and the area of the examination bed where the feet of the patient are located are recorded, the area where the head is located is recorded as the first A area, the area where the feet are located is recorded as the first B area, and the A and B areas are both between the 1-M areas, the length between the upper part of the first A area and the lower part of the first B area is L2, and the average value between the detection L1 and L2 is taken as the height of the patient.

[0040] Step six: the first detection of the patient's weight data is performed in the first state of the examination bed, and the weight of the patient is detected at a certain time every day through the control device.

[0041] Step seven: after the weight of the patient is detected in the first state of the examination bed, the first state of the examination bed is monitored, if the monitoring is normal, the weight information of the day is transmitted to the weight information storage system in the information storage system, if the monitoring is abnormal, the examination bed is changed to the second state, after the weight of the patient is detected in the first state, the normal and abnormal information of the weight is judged in the data transmitter of each weight detection sensor unit, and since the information between each data transmitter can be transmitted and shared, if the data of a certain weight detection sensor unit is abnormal, it is determined that the weight detection data in the first state is inaccurate, the gas in the inflatable layer is discharged to change the bed body to the second state, and the weight of the patient is measured by using the Hook's law through the deformation of the extension spring and the compression spring at the bottom of the bed.

[0042] Step eight: after the height information of the weight of the day is detected, the BMI information is calculated and transmitted to the BMI information storage system.

[0043] Step nine, when the examination bed is in the first state, the weight of the patient is detected every day, and the detection result is monitored after each detection, if the data is found to be incorrect, the examination bed is changed to the second state.

[0044] Step ten, according to the measured height data of the patient and the daily monitored weight data of the patient, the corresponding BMI value is calculated and updated in the information storage system, and the rehabilitation plan of the patient is customized according to the updated value every day.

[0045] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A multifunctional examination bed and a body index detection method thereof, comprising the following steps: Step one: classify the patient, according to the operation of the bed patient is divided into grade I, grade II, grade III; Step two: the patient's classification and initial physical condition through the information transmission system to the information storage system, information storage system is provided with height information storage system, weight information storage system, BMI information storage system; The information in the weight information storage system and the BMI information storage system is updated in real time according to the number of days in bed; Step three: the patient in the first state and the second state of the multifunctional examination bed is placed in the multifunctional examination bed after operation, the multifunctional examination bed is set in the first state at the beginning; The multifunctional examination bed is an inflatable bed, and the first state is an inflatable support state, and the second state is a deflation compression state; The multifunctional examination bed is provided with an inflatable layer, which is inflated by an inflation device; The support layer is arranged below the inflatable layer of the multifunctional examination bed, and the sensing layer is arranged above the inflatable layer; A plurality of weight detection sensing units are arranged in each position in the sensing layer; Each weight detection sensing unit comprises a sensor unit, a converter unit and a data transmitter unit; The sensor unit comprises a sensor circuit, the sensor circuit comprises a Uv positive electrode and a Uv negative electrode, and a connecting circuit connected between the Uv positive electrode and the Uv negative electrode; Four strain resistance R1, R2, R3 and R4 are arranged on the connecting circuit, and when the four strain resistances detect weight change, the resistance changes; The sensor circuit is connected with the converter unit, the converter unit is an AD converter, the AD converter amplifies the voltage data and transmits it to the data transmission unit, and the data transmission unit is a data transmitter; The weight detection sensing unit is provided with N weight detection sensing units, the sensor circuits of the N weight detection sensing units are connected through the converter unit and the data transmitter unit, the N data transmitters are connected through the connecting line, and the data of each data transmitter can be exchanged and monitored; After data exchange and monitoring, if the data is accurate, it is transmitted to the display screen for display; The first state of the multifunctional examination bed 1 is the inflation state, and the second state is the deflation state; Four compression springs 2 are arranged at the four corners of the bottom of the multifunctional examination bed, and a stretching spring 3 is connected in the middle of the multifunctional examination bed; Each compression spring 2 is provided with a connecting rod 4 connected with the stretching part of the stretching spring; Step four: connect the multifunctional examination bed and the control device, and send the signal of detecting the height and weight of the patient on the multifunctional examination bed through the control device; Step five: first determine the patient's level according to the patient's information in the information storage system before detecting the height, make specific height detection strategy according to the patient's level; Divide the multifunctional examination bed from the head to the tail into M partition lines, the partition lines are parallel to the head, and the adjacent partition lines form the first area, the second area, the third area... The M area; The upper and lower partition lines in each area are adjacent X cm, if the patient belongs to level III according to the information in the information storage system, first observe the patient's lying posture, if the posture is not lying, first determine the patient's head position by using infrared technology, draw a straight line segment from the patient's head to the bottom, and determine the specific position of the patient's feet by using infrared technology, the angle between the patient's feet position and the straight line segment is α, and the length from the head to the feet of the level III patient in the curled state measured by infrared is L 0, Then estimate the patient's height L1={(L0×sinα)+(K×X)}CM, record the examination bed area where the patient's head is located and the examination bed area where the patient's feet are located, record the area where the head is located as the A area, and the area where the feet are located as the B area, and A and B areas are between 1-M areas, the length between the upper partition line of the A area and the lower partition line of the B area is L2, then take the average value between L1 and L2 as the patient's height; Step six: the first time the weight data of the patient is detected, the detection is carried out in the first state of the examination bed, and the weight of the patient is detected at a certain time every day through the control device; Step seven: after the weight of the patient is detected in the first state of the examination bed, the first state of the examination bed is monitored, if the monitoring is normal, the weight information of the day is transmitted to the weight information storage system in the information storage system, if the monitoring is abnormal, the examination bed is changed to the second state; Step eight: after the height information of the weight of the day is detected, the BMI information is calculated and transmitted to the BMI information storage system. Step nine: when the examination bed is in the first state, the patient's weight is detected every day, and the detection result is monitored after every day detection. If the data is found to be incorrect, the examination bed is changed to the second state; Step ten: the corresponding BMI value is calculated according to the measured patient height data and the daily monitored patient weight data, and the information storage system is updated. The patient's rehabilitation plan is customized according to the updated value every day.

2. The multifunctional examination bed and the body index detection method thereof according to claim 1, characterized in that: In step one, the surgery is classified as level I if the surgery scale is small and the patient can change the posture on the bed after the surgery; the surgery is classified as level II if the surgery scale is medium and the patient cannot change the posture on the bed after the surgery but can change the posture with the help of the doctor; the surgery is classified as level III if the surgery scale is large and the patient cannot change the posture on the bed after the surgery.

3. The multifunctional examination bed and the body index detection method thereof according to claim 2, characterized in that: In step seven, after the patient's weight is detected in the first state, the normal and abnormal information of the weight is judged in the data transmitter of each weight detection sensor unit. Since the information between each data transmitter can be transmitted and shared, if the data of a certain weight detection sensor unit is abnormal, it is determined that the weight detection data in the first state is inaccurate. The gas in the inflatable layer is discharged to change the bed body to the second state, and the patient's weight is measured by using the Hook's law through the deformation of the stretching spring and the compression spring at the bottom of the bed.

Citation Information

Patent Citations

  • Bed sheet capable of measuring height of bedridden patient and measuring method

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  • Weight measuring device for bedridden patient

    CN117959107A

  • Laminating plate capable of measuring weight and height

    CN221731296U

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    CN102657532A

  • Scanning bed and height and weight measurement method for scanning bed

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