An adaptive adjusting intelligent restraint device

Abstract

The application relates to the field of restraint devices, and discloses a self-adaptive intelligent restraint device, which comprises a restraint bed, the top of the restraint bed is sequentially provided with an ankle fixing ring, a thigh restraint ring, a waist and abdomen restraint ring, a wrist restraint ring and a shoulder restraint belt from left to right, the top of each of the four restraint rings and the restraint belt is provided with a fastening restraint belt with different sizes, the outer side of the restraint bed is provided with a detection mechanism, one end of the fastening restraint belt is provided with a quick connection mechanism, and the other end of the fastening restraint belt is provided with an adjusting mechanism. The patient pressure is accurately calculated through a strain gauge, the fastening of the restraint belt is automatically adjusted by a motor after comparison with a preset value, the safety, comfort and real-time performance of the restraint are ensured, in addition, the device is also integrated with a quick connection mechanism convenient for medical staff to operate and a function of sending an alarm to a nurses' station through Bluetooth when the patient is agitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of restraint devices, in particular to a self-adaptive intelligent restraint device. BACKGROUND

[0002] At present, in the clinical medical nursing practice, for some patients in a state of unconsciousness, restlessness, delirium or aggressive behavior, in order to ensure their own safety, prevent them from falling out of bed, self-injury, pulling out important treatment lines and other accidents, so as to ensure the smooth progress of treatment, the use of physical restraint tools is a necessary and routine protective measure. Restraint devices, especially restraint belts, have become an important auxiliary tool to ensure the safety of such special patients and maintain the order of treatment.

[0003] In view of the above restraint requirements, the restraint belts commonly used in clinical practice have a relatively direct and original working mode. Usually, such restraint belts are made of sturdy cloth or leather, and their structure mainly consists of a belt and a fixing buckle. Medical staff will wrap the belt around the patient's wrist, ankle or torso according to the needs, then adjust the tightness by manual pulling, and finally fix the other end of the belt on the bed frame by knotting, perforated buckle or magic tape. Once fixed, the length of the restraint belt and the applied tension are in a static and constant state, unless the medical staff manually adjust it again, otherwise the restraint state will not change.

[0004] However, in long-term practice, this traditional restraint method relying on manual operation and single function has exposed many inherent and difficult-to-overcome defects. First of all, the quantification of restraint force has become an unsolvable problem. Medical staff rely entirely on personal experience and subjective feeling to apply restraint force, and there is no objective data as a standard to judge whether the force is too large or too small. Light restraint cannot achieve the purpose of limiting patient activity, leaving a safety hazard; while excessive restraint directly leads to the next serious problem.

[0005] Secondly, the patient's body is extremely vulnerable to additional injuries. Since the restraint force is uncontrollable and constant, long-term fixation compression can seriously affect the blood circulation of the patient's local limbs. This is very easy to cause skin redness, cyanosis, and even more serious consequences such as pressure injuries at the restrained site.

[0006] Thirdly, the existing restraint device lacks any form of dynamic response capability. It cannot sense the real-time state of the patient, whether the patient is in a state of severe restlessness or has recovered calm, the restraint belt remains in the initial set state of tension.

[0007] In addition, the prior art also has obvious blank in early warning and monitoring. When the patient begins to show signs of restlessness, the medical staff cannot know it in the first time, and can only rely on fixed patrol process. The lag of information transmission makes the medical staff unable to respond to the emergency in time, and the real-time and initiative of nursing are greatly discounted. SUMMARY

[0008] In view of the defects of the prior art, the self-adaptive intelligent restraint device is provided to solve the problem that the existing restraint device is too tight for the patient and easily harms the patient.

[0009] To achieve the above purpose, the self-adaptive intelligent restraint device is implemented by the following technical scheme: a self-adaptive intelligent restraint device, comprising a restraint bed, characterized in that the top of the restraint bed is sequentially provided with an ankle fixing ring, a thigh restraint ring, a waist and abdomen restraint ring, a wrist restraint ring and a shoulder restraint belt from left to right, and the top of the four is provided with fastening restraint belts of different sizes, the outer side of the restraint bed is provided with a detection mechanism, one end of the fastening restraint belt is provided with a quick connection mechanism, which facilitates the medical staff to quickly connect and detach the fastening restraint belt, the other end of the fastening restraint belt is provided with an adjusting mechanism, which is used to adjust the restraint force of the fastening restraint belt according to the emotional state of the patient, the adjusting mechanism comprises a driving motor and a mounting plate, the output end of the driving motor is fixedly connected with a driven rotary rod, one end of the driven rotary rod away from the driving motor is rotatably connected in the inside of the mounting plate, and one end of the fastening restraint belt is wound outside the driven rotary rod.

[0010] Preferably, the quick connection mechanism comprises a male buckle and a female buckle, the male buckle is clamped in the inside of the female buckle, one end of the fastening restraint belt is arranged on the top of the male buckle, and one side of the female buckle is fixed to the outside of the restraint bed through a connecting block.

[0011] Preferably, the bottom corners of the restraint bed are provided with moving wheels.

[0012] Preferably, the detection mechanism comprises a plurality of strain gauges, and the plurality of strain gauges are arranged on the inside of the fastening restraint belt, the strain gauges are connected with a strain measuring instrument through lead wires, the strain measuring instrument is fixedly connected to one side of the restraint bed, the output end of the strain measuring instrument is connected with a restraint force setting instrument through a data connection line, and the restraint force setting instrument is electrically connected with the driving motor.

[0013] Preferably, a laser angle measuring instrument is installed at the right end of the restraint bed, and the laser angle measuring instrument is electrically connected with the restraint force setting instrument.

[0014] Preferably, a plurality of lead wires are embedded in the inside of the fastening restraint belt.

[0015] Preferably, the inside of the constraint force setting instrument is provided with a Bluetooth emission module for emitting a signal to the nurses' station for alarm.

[0016] Preferably, the ankle fixing ring, the thigh constraint ring and the waist and abdomen constraint ring are all adjustable belts.

[0017] The application provides a self-adaptive intelligent constraint device.

[0018] 1. The application can accurately calculate the pressure of the constraint belt on the patient by setting a precision strain gauge in the constraint belt, detecting the included angle between the constraint belt and the bed board by a formula and a laser angle detector, and transmitting the pressure data back to the strain gauge; the constraint force setting instrument receives the pressure data transmitted by the strain gauge, sets a suitable size of the restlessness force according to the patient's age, physical condition, gender and other characteristics in the constraint force setting instrument, and the value of the restlessness force can be displayed on the setting instrument; the two pressures are compared, and when the real-time pressure is greater than the preset restlessness force, it is judged that the patient is in a state of restlessness, and the drive motor can be driven to tighten the winding of the constraint belt; since the real-time pressure will change according to the patient's condition, when the real-time pressure changes slightly within a time period, the drive motor can be driven to relax the tightening of the constraint belt, slow down the constraint of the constraint belt on the patient, and ensure the safety, comfort and real-time performance of the restraint.

[0019] 2. The application sets a quick connection mechanism at one end of the constraint belt, which is similar to the principle of a mountain buckle, which can ensure reliable connection and facilitate quick connection and removal of the medical staff for replacement.

[0020] 3. The application sets a Bluetooth emission module in the constraint force setting instrument, and after receiving the real-time pressure of the constraint belt transmitted back by the strain gauge and comparison, it is judged that the patient is in a state of restlessness, and a signal can be sent to the nurses' station through the Bluetooth module to alarm and call the medical staff to check the patient in time. DETAILED DESCRIPTION

[0021] Figure 1 It is a perspective view of the application;

[0022] Figure 2 It is an enlarged view of A in the figure; Figure 1

[0023] Figure 3 It is a schematic diagram of the architecture of the drive motor of the application;

[0024] Figure 4 It is a schematic diagram of the architecture of the strain gauge of the application.

[0025] ​Wherein, 1, constraint bed; 2, laser goniometer; 3, strain measuring instrument; 4, ankle fixing ring; 5, thigh constraint ring; 6, waist and abdomen constraint ring; 7, shoulder constraint belt; 8, wrist constraint ring; 9, fastening constraint belt; 10, moving wheel; 11, sub buckle; 12, female buckle; 13, constraint force setting instrument; 14, driving motor; 15, driven rotating rod; 16, mounting plate; 17, data connection line; 18, strain gauge; 19, lead wire. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] Please refer to the accompanying drawings of the present application Figure 1 - the accompanying drawings of the present application Figure 4 The embodiment of the present application provides a self-adaptive intelligent constraint device, which comprises a constraint bed 1, and moving wheels 10 are arranged at the four corners of the bottom of the bed body for facilitating movement. The constraint bed 1 is equipped with constraint mechanisms for fixing different parts of the patient, which are an adjustable ankle fixing ring 4, a thigh constraint ring 5, a waist and abdomen constraint ring 6, a wrist constraint ring 8 and a shoulder constraint belt 7 from the foot to the shoulder, for multi-angle binding and fixing of the patient. The waist and abdomen constraint ring 6 is not fixed when only the lower body of the patient is fixed. The upper part of each of the constraint rings / belts is connected with a core fastening constraint belt 9 for applying and adjusting the constraint force. The core of the whole device comprises a detection mechanism, an adjustment mechanism and a constraint force setting instrument 13 as a control center, which cooperates to realize intelligent self-adaptive adjustment.

[0028] The intelligent restraint device consists of two parts working in tandem: First, high-precision strain gauges 18 are embedded inside each restraint band 9, with their leads 19 cleverly concealed within the restraint bands, connecting to a strain gauge 3 on the side of the bed. The strain gauges 18 can detect the strain ε generated by the traction of the restraint bands 9 when the patient moves. Second, a laser goniometer 2 is installed at one end of the restraint bed 1 to measure the angle α between the restraint bands 9 and the bed board or the patient's body surface in real time. The data collected by the strain gauge 3 and the laser goniometer 2 are instantly transmitted to the restraint force setting device 13 via a data connection line 17. Based on a built-in physical formula, utilizing the known elastic modulus E and cross-sectional area S of the restraint bands, combined with the real-time collected strain ε and angle α, the restraint force setting device 13 can accurately calculate the actual pressure F_pressure acting perpendicularly on the patient's body using the formula F_pressure = E * ε_0 * S * sinα. This design abandons the fuzzy method of traditional restraint devices that rely on subjective judgment, achieving precise and objective data.

[0029] The restraint force setting device 13, as the control center of the intelligent restraint device, is not merely a computing unit, but also a decision-making and execution center. Medical staff can pre-set a reasonable "agitation force" threshold Fpressure within the restraint force setting device 13 based on the patient's specific circumstances, such as age, weight, gender, and condition. During operation, the restraint force setting device 13 continuously receives and calculates the real-time pressure Fpressure and compares it with the preset threshold.

[0030] When the system detects that the pressure F0 is greater than the pressure F-pressure agitation, it determines that the patient has entered an agitated state. At this time, the restraint force setting device 13 will immediately send a command to the drive motor 14 in the adjustment mechanism. The drive motor 14 will then start, driving the driven rotating rod 15 to rotate within the mounting plate 16, tightening the fastening restraint band 9 wrapped around it until the applied pressure reaches a preset safe restraint value. Then the motor maintains the torque to effectively and safely restrain the patient.

[0031] After the constraint is applied, the system does not stop monitoring. The constraint force setting device 13 continuously analyzes the trend of strain data changes. When it detects that the fluctuation range of strain, i.e., pressure F0, is very small within a certain time period, the system determines that the patient has returned to calm. At this time, it sends a reverse command to the drive motor 14 again, causing it to slowly rotate in the opposite direction, loosening the fastening constraint band 9 until it is in a relaxed state of contact without compression, thereby maximizing the patient's comfort. This closed-loop design of "sensing-judgment-execution-re-sensing" realizes fully automatic, dynamic, and intelligent adjustment of the constraint force.

[0032] In order to improve the operation efficiency of medical staff and the ability to respond to emergency situations, first, the connecting end of the fastening restraint belt 9 is designed with a quick connection mechanism. The mechanism consists of a female buckle 12 fixed on the connecting block outside the restraint bed 1 and a male buckle 11 set at the end of the fastening restraint belt 9. Its working principle is similar to that of a mountain buckle, which can achieve one-handed quick and reliable clamping and removal, greatly facilitating the installation and replacement of the restraint belt. Secondly, in order to realize remote monitoring of patients, the internal restraint force setting instrument 13 also integrates a Bluetooth transmission module. When the system determines that the patient is in an agitated state and performs a restraint operation, the module will immediately transmit an alarm signal to the receiving device at the nurses' station. This allows medical staff to be aware of patient abnormalities in the first instance and promptly check, providing double protection for patient safety.

[0033] Working principle: The patient is restrained by the restraint belt, and the elastic modulus E of the restraint belt and the cross-sectional area S in contact with the patient, as well as the strain of the strain gauge 18 measured by the restraint belt, can be used to calculate the tension F of the restraint belt = S*E*ε; When the patient is not agitated, the restraint belt is in a relaxed state. When the patient moves, it will pull the restraint belt to generate force, at which time the strain gauge 18 in the restraint belt can measure a strain ε0, and according to the angle a0 between the restraint belt and the bed plate at this time, the pressure F pressure = E*ε0*S can be calculated, and the angle α measured by the laser angle measuring instrument 2 can be used to calculate F pressure0 = F pressure*sinα, when F pressure0 is greater than the agitation force F pressure agitation set in the restraint force setting instrument 13, it is determined that the patient is in an agitated state, at which time the restraint force setting instrument 13 controls the motor to rotate to set F pressure restraint, so that the motor remains at this torque, when the patient is agitated, the strain on the restraint belt will change within a certain range, when the strain detected by the strain measuring instrument 3 changes within a certain time period, it is considered that the patient has returned to a calm state, at which time the motor is slowly rotated to loosen the restraint belt. Make the patient in a more comfortable state.

[0034] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive smart restraint device comprising a restraint bed (1), characterized in that, The top of the constraint bed (1) is sequentially provided with an ankle fixing ring (4), a thigh constraint ring (5), a waist and abdomen constraint ring (6), a wrist constraint ring (8) and a shoulder constraint belt (7) from left to right, and the top of the four is provided with fastening constraint belts (9) of different sizes, one end of the fastening constraint belt (9) is provided with a quick connection mechanism, which facilitates the quick connection and disassembly of the fastening constraint belt (9) by medical staff, and the other end of the fastening constraint belt (9) is provided with an adjusting mechanism, which is used for adjusting the constraint force of the fastening constraint belt (9) according to the emotional state of the patient; The adjusting mechanism comprises a driving motor (14) and a mounting plate (16), the output end of the driving motor (14) is fixedly connected with a driven rotating rod (15), one end of the driven rotating rod (15) away from the driving motor (14) is rotatably connected in the inside of the mounting plate (16), and one end of a plurality of fastening constraint belts (9) is wound outside the driven rotating rod (15); The outside of the constraint bed (1) is provided with a detection mechanism, the detection mechanism comprises a plurality of strain gauges (18), and a plurality of strain gauges (18) are arranged on the inside of the fastening constraint belt (9), the strain gauge (18) is connected with a strain measuring instrument (3) through a lead wire (19), the strain measuring instrument (3) is fixedly connected on one side of the constraint bed (1), and the output end of the strain measuring instrument (3) is connected with a constraint force setting instrument (13) through a data connection line (17). The constraint force setting instrument (13) and the driving motor (14) are electrically connected; The right end of the constraint bed (1) is provided with a laser angle measuring instrument (2), and the laser angle measuring instrument (2) and the constraint force setting instrument (13) are electrically connected.

2. The self-adjusting smart restraint device of claim 1, wherein, The quick connection mechanism comprises a female buckle (12) and a male buckle (11), and the male buckle (11) is clamped in the inside of the female buckle (12), one end of the fastening constraint belt (9) is arranged on the top of the male buckle (11), and one side of the female buckle (12) is fixed on the outside of the constraint bed (1) through a connecting block.

3. The self-adjusting smart restraint of claim 1, wherein, The bottom of the constraint bed (1) is provided with a moving wheel (10) at each corner.

4. The self-adjusting smart restraint of claim 1, wherein, A plurality of lead wires (19) are embedded in the inside of the fastening constraint belt (9).

5. The self-adjusting smart restraint of claim 1, wherein, The inside of the constraint force setting instrument (13) is provided with a Bluetooth transmitting module, which is used for transmitting signals to the nurses' station for alarm.

6. The self-adjusting smart restraint of claim 1, wherein, The ankle fixing ring (4), the thigh constraint ring (5) and the waist and abdomen constraint ring (6) all adopt adjustable binding belts.

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