CN102028598B - Multifunctional weight-reducing dynamic balance training bed - Google Patents

Abstract

The invention provides a multifunctional weight-reducing dynamic balance training bed, which includes a bed base, a bed frame and a bed board. The front end is connected with a left lower limb support moving mechanism and a right lower limb support moving mechanism, so as to realize passive dynamic synchronous flexion and extension and alternate flexion and extension. There is a bed board angle adjustment mechanism between the bed frame and the bed base to realize the weight reduction function of the back at various angles. Between the two sides of the bed frame and the base, there are respectively an up and down movement mechanism on the left side of the bed board and an up and down movement mechanism on the right side of the bed board. The left and right lower limb telescopic mechanisms include thigh telescopic rods and calf telescopic rods, which realize the adjustable length of the leg brackets, thereby realizing personalized lower limb training. A control box is installed on the bed base. The invention integrates a device for rehabilitation evaluation and training of the dynamic balance function, and can adjust the degree of weight loss.

Description

Multifunctional Weight Loss Dynamic Balance Training Bed

technical field

The invention relates to a rehabilitation medical device, in particular to a multifunctional weight-reducing dynamic balance training bed.

Background technique

According to statistics, the annual incidence of cerebrovascular disease, Parkinson's disease, craniocerebral trauma and spinal cord injury in my country is increasing year by year. These diseases and injuries can cause balance dysfunction and even disability. And balance dysfunction is the main disabling factor. Multiple evidence-based medical evidences show that training including balance function and lower limb function is an important way to improve function.

Most of the rehabilitation process of patients with balance function has to go through passive exercise training to active exercise training. Diseases and injuries that can be used for passive dynamic lower limb balance function test training include stroke, traumatic brain injury, Parkinson's disease, spinal cord injury, etc.; used for patients with coma It can also be used for patients with disturbance of consciousness in vegetative state and weak consciousness state. It can also be used in orthopedic departments who need to maintain passive activities of lower limbs after total hip and total knee replacement, AO or BO after lower limb fractures, and at the same time require some upright posture training. diseases; it can be used for early rehabilitation of heart diseases that need to maintain lower limb activities and at the same time require upright or semi-upright posture training, such as myocardial infarction, coronary artery bypass surgery, etc.; and corresponding passive lower limb balance function test training is the initial rehabilitation necessary measures.

Synchronous flexion and extension of both legs and alternate flexion and extension are one of the important ways of human lower limb movement. Passive synchronous flexion and extension is similar to passive squatting and standing up, and passive alternate flexion and extension is similar to passive stepping. At present, the passive flexion and extension of both legs and alternate flexion and extension have been manually operated by trainers in the past, which is not only time-consuming, laborious, and costly to treat. At present, weight loss rehabilitation training for lower limbs mostly uses suspension equipment for weight loss training. Suspension equipment uses suspension belts to pull the patient's weight upwards, which needs to restrain the patient's trunk, which is likely to cause discomfort to the patient, and the operation is cumbersome.

The current passive training products on the market still have the weakness of lack of personalized training. For patients with tall and short stature, unified lower limb training products are used, which causes some patients to fail to achieve the effect of the training process, or the training intensity is too large, causing certain damage to the patients. damage.

Most of the balance training beds do not integrate the lying position training of the affected side of the lower limbs, which affects the training intensity of the affected side and the gradual rehabilitation process, resulting in unsatisfactory rehabilitation effects.

Contents of the invention

The object of the present invention is to provide a multifunctional weight-reducing dynamic balance training bed in order to solve the above problems.

In order to achieve the above object, the present invention adopts the following technical solutions: a multifunctional weight-reducing dynamic balance training bed, including a bed base, a bed frame and a bed board, the bed frame is installed on the bed base and is rotatably connected with the bed base, and the bed board is fixed On the bed frame, a left lower limb support and a right lower limb support are connected at the front end of the bed frame, and a left lower limb support moving mechanism and a right lower limb support moving mechanism are respectively connected between the left lower limb support, the right lower limb support and the bed frame. The bracket moving mechanism and the right lower limb bracket moving mechanism are respectively driven by two stepping motors and two ejector rods to realize passive dynamic synchronous flexion and extension and alternate flexion and extension.

There is a bed board angle adjustment mechanism between the bed frame and the bed base to meet the needs of different degrees of weight reduction.

Between the two sides of the bed frame and the bed base, there are respectively an up and down movement mechanism on the left side of the bed board and an up and down movement mechanism on the right side of the bed board.

A plurality of universal adjustment casters are installed on the bed base of the training bed, and a plurality of adjustment mechanisms for adjusting the up and down expansion of the casters are correspondingly provided.

The bed board angle monitor is also included, the bed board angle monitor is installed on the bed frame and moves together with the bed frame, and can monitor the inclination angle of the bed board.

The left lower limb bracket and the right lower limb bracket have the same symmetrical structure, and each includes a pedal bracket, a lower limb telescopic mechanism, a front foot buffer, a heel guide shaft and a pedal; the pedal bracket is connected to the corresponding lower limb bracket moving mechanism through transmission; the foot The front-end buffer and the heel guide shaft are respectively connected between the pedal and the pedal bracket; one end of the lower limb telescopic mechanism is rotatably connected with the pedal bracket, and the other end is rotatably connected with the bed frame; There is a plantar pressure sensor, and the plantar pressure sensor is connected with the sensor interface circuit in the control box; an angle sensor is provided on the lower limb telescopic mechanism, and the angle sensor is connected with the sensor interface circuit in the control box; The moving mechanism of the lower limb support and the moving mechanism of the right lower limb support are respectively connected with the corresponding pedal support transmission.

The lower limb telescopic mechanism includes a thigh telescopic rod, a calf telescopic rod, a thigh support and a calf support. One end of the thigh telescopic rod is rotatably connected with the bed frame, the other end is rotatably connected with the calf telescopic rod, and the other end of the calf telescopic rod is connected with the foot pedal. The support is rotatably connected, the thigh support is installed on the thigh telescopic rod, the shank support is installed on the shank telescopic rod, and the thigh telescopic rod, the shank telescopic rod, the thigh support and the shank support are respectively provided with adjustment locking handles. This hip joint is fixed, the length of the thigh support is adjustable, the position of the corresponding knee joint is adjustable, and the length of the calf support is adjustable, realizing personalized lower body training.

The plantar pressure sensor is composed of a cantilever beam with four strain gauges attached, and the cantilever beam with four strain gauges is inserted into the sole of the foot composed of pedals, pedal brackets, front-end buffers and heel guide shafts. inside the power part.

The moving mechanism of the left lower limb support, the moving mechanism of the right lower limb support, the up and down movement mechanism on the left side of the bed board and the up and down movement mechanism on the right side of the bed board all include a linear stepping motor.

A control box is installed on the bed base, and a sensor interface circuit, a motor drive module and a power supply module are arranged in the control box, and the power supply module provides power for the sensor interface circuit and the motor drive module respectively; The lower limb support moving mechanism is connected with the electric signal of the linear stepper motor in the right lower limb support moving mechanism.

The multi-functional weight-reducing dynamic balance training bed of the present invention is used in conjunction with a computer program and a display device. When in use, the patient relies on the bed board or stands independently on the back, and the lower limbs can be dynamically and synchronously flexed and stretched under the drive of the lower limb support moving mechanism. Balance function assessment and training with alternating flexion and extension. In addition, it uses the angle-adjustable bed board to support the back to produce different weight-reducing effects; the hip joint is fixed, the length of the thigh support is adjustable, the corresponding knee joint position is adjustable, and the length of the calf support is adjustable to realize personalized lower limbs Training; it can realize the lying position training of the affected side, strengthen the nerve stimulation of the affected side, and benefit the movement of the healthy side limbs. This process is realized by the up and down movement mechanism on the left side of the bed board and the up and down movement mechanism on the right side of the bed board; multifunctional weight loss dynamic balance training The bed can carry out weight loss training and carry out early rehabilitation, while avoiding the shortcomings of suspension weight loss, and also has the technology of an intelligent balance system. The multifunctional weight-reducing dynamic balance training bed of the present invention is provided with a repetitive passive weight-reducing stepping training method for consciousness disturbance or severe motor dysfunction, and the proprioceptive stimulation is formed by the equipment, which promotes the recovery of the state of consciousness and prevents the uselessness and loss caused by bed rest. health.

Description of drawings

Fig. 1 is the schematic structural view of the front view of the multifunctional weight loss dynamic balance training bed of the present invention;

Fig. 2 is a top view structure schematic diagram of the multifunctional weight loss dynamic balance training bed of the present invention.

Detailed ways

Referring to Fig. 1 and Fig. 2, the multifunctional weight-reducing dynamic balance training bed 1 of the present invention includes a bed base 11, a bed frame 12 and a bed board 13, and the bed frame 12 is installed on the bed base 11 and is rotatable with the bed base 11 through the rotating shaft 6 Connected, the bed board 13 is fixedly connected with the bed frame 12, the front end of the bed frame 12 is connected with the left lower limb support and the right lower limb support 14, and the left lower limb support and the right lower limb support 14 are respectively connected with the bed frame 12 to move Mechanism and right lower limb support moving mechanism 15, be provided with bed board angle adjustment mechanism 16 and bed board left side up and down movement mechanism and bed board right side up and down movement mechanism 17 between bed frame 12 and bed base 11, above-mentioned each mechanism all comprises a straight line stepper motor. A plurality of universal adjustment casters 111 are installed on the bed base 11 of the training bed, and a plurality of adjustment mechanisms 112 for adjusting the up and down expansion of the casters are correspondingly provided. On the bed frame 12, a bed board angle display 8 is also installed, and the bed board angle display 8 moves together with the bed frame 12 for displaying the tilting angles of the bed frame 12 and the bed board 13.

Cooperate referring to Fig. 2, left lower limb support among the present invention and right lower limb support structure 14 are symmetrically identical, respectively comprise pedal support 141, lower limb telescoping mechanism 142, pin front buffer 143, heel guide shaft 144 and pedal 145. Pedal support 141 is connected with the transmission of corresponding lower limb support moving mechanism 15; Front end buffer 143 and heel guide shaft 144 are connected between pedal 145 and pedal support 141 respectively. One end of the lower limb telescopic mechanism 142 is rotatably connected with the pedal bracket 141 , and the other end is rotatably connected with the bed frame 12 . Be provided with plantar pressure sensor (not shown) around pedal 145, this plantar pressure sensor is made up of the cantilever beam that is pasted with four strain gauges, and the cantilever beam that is pasted with four strain gauges is inserted in by foot Pedal, pedal bracket, foot front buffer and heel guide shaft are formed in the plantar force-bearing parts, and are connected with the sensor interface circuit electric signal in the control box 2 respectively. The lower limb telescopic mechanism 143 is provided with an angle sensor (not shown in the figure), and the angle sensor is electrically connected with the sensor interface circuit in the control box. The left lower limb support moving mechanism and the right lower limb support moving mechanism 15 are respectively connected with the corresponding pedal supports 141 through transmission.

Cooperate with referring to Fig. 2, lower limb telescopic mechanism 142 among the present invention comprises thigh telescoping link 1421, shank telescoping link 1422, thigh support 1423 and calf support 1424, and one end of thigh telescoping link 1421 is rotatably connected with bed frame 12, and the other end is connected with shank. Telescopic rod 1422 is rotatably connected, and the other end of shank telescopic rod 1422 is rotatably connected with pedal support 141, and thigh support 1423 is installed on the thigh telescopic rod 1421, and calf support 1424 is installed on the shank telescopic rod 1422, and is installed on the thigh telescopic rod 1422. The shank telescopic rod, the thigh support and the shank support are respectively provided with adjustment and locking handles 1425.

On the bed base 11 of the training bed, a control box 2 is installed, and the control box 2 is provided with a sensor interface circuit, a motor drive module and a power supply module (not shown), and the power supply module provides the sensor interface circuit and the motor drive module respectively. The power supply; the motor drive module are respectively connected with the electrical signals of the linear stepping motors in the bed board angle adjustment mechanism, the left lower limb support moving mechanism and the right lower limb support moving mechanism.

The present invention cooperates with a main control computer and two display screens (main display screen and patient display screen), realizes central control through the main control computer, and performs display by the two display screens. Wherein the main display screen is placed on the operating table for use by medical staff. The main display screen can display all content including patient information, test reports, functional training, game training, generating reports, system settings, etc., and can control the content of the patient display screen at the same time. The display screen for the patient is located in front of the patient during training, which is convenient for the patient to observe the change of strength during the training process and actively adjust the balance in real time. The display screen for the patient can display the training process, the participation process of the game and the training results, etc. .

In the collection and processing of data in the present invention, the plantar pressure data is collected by the pressure sensor group, the hip joint motion angle data is collected by the angle sensor group, and transmitted to the sensor interface circuit in the control box, and the multi-channel sensor transmission integrated card ( After signal amplification, filtering, sampling and holding), it enters the data acquisition card, and then outputs to the main control computer to process the signal, so that the force on the left and right feet is displayed in the form of an intuitive histogram or data table, so that the patient can experience real-time Understand your actual situation and adjust your posture and strength appropriately. Of course, patients can also intuitively understand how much progress they have made after a period of training, which is conducive to helping patients build confidence in recovery and stimulate their desire for training. At the same time, the frontal plane swing frequency, average center of gravity, frontal plane maximum swing, frontal plane average swing, the total length of the center of gravity moving track, the total area of the center of gravity moving track and the lateral side of the frontal plane can be measured through various collected signals. Calculation and display of swing speed and other parameters.

The main control computer in the present invention is provided with a motion control module, and the main control computer drives each motion mechanism through the motion control module, that is, the linear stepping motor in the bed board angle adjustment mechanism, the left lower limb support moving mechanism and the right lower limb support moving mechanism. The rotation of the bed board is realized by synchronously controlling the stepping motor to make it forward and reverse, so as to achieve the effect of arbitrary inclination of the bed board from 0 to 90 degrees. In this way, patients can realize lying down, reclining or even standing for training, and realize evaluation and training under various angles of load reduction. The linear stepper motor in the bed board angle adjustment mechanism controls the bed board movement to achieve different degrees of inclination of the body. The linear stepper motors in the left and right lower limb support moving mechanisms, the left up and down movement mechanism, and the right side up and down movement mechanism of the bed plate respectively promote the movement of the left and right foot pedal brackets, realizing passive bilateral synchronous flexion and extension of lower limbs and passive double Alternate side flexion and extension or left and right single leg flexion and extension, the linear stepper motor in the left up and down movement mechanism and the right side up and down movement mechanism of the bed board realizes the left and right side of the bed, assisting the training of the affected side; the lower limb telescopic mechanism realizes the length of the thigh support Adjustable, the corresponding knee joint position is adjustable, and the length of the calf support is adjustable; the running speed of each motor, forward and reverse movement, etc. are uniformly controlled by the main control computer to realize the training and evaluation of the visual feedback dynamic balance evaluation training system.

The use of the multifunctional weight loss dynamic balance training bed includes the following steps:

1. The patient lies on the bed leaning against the backboard, and lets his left and right feet step on the left and right pedals respectively.

2. According to the actual situation of the patient, the doctor adjusts the inclination angle of the bed to achieve different degrees of weight loss. At this time, the inclination angle of the bed is displayed on the bed board angle display. The smaller the angle, the greater the weight loss.

3. According to the actual situation of the affected side, the doctor can adjust the height of the left and right sides of the bed and control the rollover angle of the bed.

4. Adjust the telescopic mechanism of the lower limbs to achieve hip fixation, the length of the thigh support is adjustable, the position of the corresponding knee joint is adjustable, and the length of the calf support is adjustable to adapt to the training and evaluation of patients of different heights.

Claims (5)

1. A multifunctional weight-reducing dynamic balance training bed is characterized in that: it comprises a bed base, a bed frame and a bed board, the bed frame is installed on the bed base and is rotatably connected with the bed base, the bed board is fixed on the bed frame, and The front end of the frame is connected with a left lower limb support and a right lower limb support, and a left lower limb support moving mechanism and a right lower limb support moving mechanism are respectively connected between the left lower limb support, the right lower limb support and the bed frame, and a There is a mechanism for adjusting the angle of the bed board. Between the two sides of the bed frame and the base, there are respectively an up and down movement mechanism on the left side of the bed frame and an up and down movement mechanism on the right side of the bed frame. Each of the above mechanisms includes a linear stepping motor; A control box is installed on the top, and the control box is equipped with a sensor interface circuit, a motor drive module and a power supply module. The power supply module provides power for the sensor interface circuit and the motor drive module respectively; the motor drive module moves with the bed board angle adjustment mechanism and the left lower limb support respectively. Mechanism, the moving mechanism of the right lower limb support, the up and down moving mechanism on the left side of the bed frame, and the linear stepping motor in the up and down moving mechanism on the right side of the bed frame are connected by electrical signals; The left lower limb bracket and the right lower limb bracket have the same symmetrical structure, and each includes a pedal bracket, a lower limb telescopic mechanism, a foot front buffer, a heel guide shaft and a pedal; the pedal bracket is driven by the corresponding lower limb bracket moving mechanism connected; the foot front buffer and the heel guide shaft are respectively connected between the pedal and the pedal bracket; one end of the lower limb telescopic mechanism is rotatably connected with the pedal bracket, and the other end is rotatably connected with the bed frame; A plantar pressure sensor is arranged around the board, and the plantar pressure sensor is connected with the sensor interface circuit in the control box by electrical signals; an angle sensor is arranged on the lower limb telescopic mechanism, and the angle sensor is connected with the sensor interface circuit in the control box by electrical signals; The moving mechanism of the left lower limb support and the moving mechanism of the right lower limb support are connected with the corresponding pedal support transmission respectively. 2. The multifunctional weight-reducing dynamic balance training bed as claimed in claim 1, characterized in that: the lower limb telescopic mechanism includes a thigh telescopic rod, a calf telescopic rod, a thigh support and a calf support, and one end of the thigh telescopic rod is connected to the bed. The frame is rotatably connected, and the other end is rotatably connected with the calf telescopic rod, and the other end of the calf telescopic rod is rotatably connected with the pedal bracket. The telescopic rod, the calf telescopic rod, the thigh support and the calf support are respectively provided with adjusting and locking handles. 3. The multifunctional weight-reducing dynamic balance training bed as claimed in claim 1, characterized in that: the plantar pressure sensor is composed of a cantilever beam with four strain gauges attached, and the cantilever beam with four strain gauges It is inserted in the sole force-bearing part composed of pedals, pedal brackets, front-end buffers and heel guide shafts. 4. The multifunctional weight-reducing dynamic balance training bed as claimed in claim 1, characterized in that: the bed base of the training bed is equipped with a plurality of universal adjustment casters, and correspondingly provided with a plurality of casters for adjustment Up and down telescopic adjustment mechanism. 5. The multifunctional weight-reducing dynamic balance training bed according to claim 1, further comprising a bed board angle indicator, which is installed on the bed frame and moves together with the bed frame.

Images