Anti-gliding bionic knee joint orthosis
By integrating vibration motor, binding force monitoring and exercise data transmission functions in knee orthosis, the problems of slippage, binding force monitoring and movement amplitude are solved, and more effective knee orthosis exercise and data management are achieved, improving Rehabilitation effect.
Patent Information
- Application Number
- CN202411275057.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2024-12-13
AI Technical Summary
During the use of existing knee orthosis, there are problems such as slippage, insufficient monitoring of binding force, inappropriate amplitude of joint movement and inconvenient monitoring of exercise data, which affects the rehabilitation effect.
A bionic knee orthosis that is anti-sliding is designed, using a vibration motor, binding force monitoring mechanism, exercise intensity detection circuit and exercise data transmission circuit, which monitors and transmits exercise data in real time through wireless means to provide binding force and movement amplitude. Real-time feedback and alerts ensure proper exercise intensity and data management.
Effectively prevent equipment from slipping, ensuring appropriate binding force, monitoring and correcting exercise intensity, transmit exercise data in real time, improving rehabilitation results and facilitating medical staff management.
Smart Images
Figure CN119112466A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of rehabilitation equipment, in particular to an anti-slip bionic knee joint orthosis. Background Art
[0002] Knee orthosis is an orthosis used to treat knee instability, contracture, ligament injury and other diseases. In use, it is fixed to the back of the thigh and calf by ropes, etc., and the patient's knee joint can move within a certain angle along the hinge point.
[0003] Although the existing knee joint orthosis meets the needs of rehabilitation to a certain extent, it is limited by the structure and still has the following technical disadvantages. First, the contact part with the patient's leg is a smooth structure. After the patient exercises for a period of time, especially when sweating, it is easy to slip between the legs, which will have an adverse effect on the fixation of the equipment and cause discomfort to the patient. It does not have the function of activating muscles and blood, and the corresponding effect of recovery from illness is relatively limited. Second, there is no monitoring mechanism for the fixed binding rope. When the patient fixes the binding rope too tight or too loose, it will affect the actual exercise (the knee joint orthosis is fixed too tightly, which will cause discomfort to the patient's muscles, etc., and the knee joint orthosis is fixed too loosely, which is easy to slip from the top to the bottom of the patient's legs, resulting in the inability to exercise normally, etc., and the patient loosens and re-fixes the binding rope again, which will cause inconvenience to the patient). Third, it does not have the function of monitoring the range of motion of the knee joint. In this way, if the patient's knee movement or the forward or backward movement of the calf is too large or too small, it will affect the rehabilitation effect of the joints (for example, due to the condition, the patient's calf movement range is required to be larger, but the patient's leg joints are affected by soreness and pain, and the calf movement range is relatively small, or the patient's knee joint injury is more serious. In the initial stage of exercise, the patient's calf movement range is required to be smaller, but the patient is eager to recover from the disease as soon as possible, and the calf movement range is relatively large, causing further aggravation of the injury, etc.). Fourth, the relevant medical staff cannot understand the patient's knee joint movement data per unit time. When the patient is not self-conscious, the exercise intensity is not enough, or he does not exercise actively, it is impossible to urge him to exercise actively, which is not conducive to the patient's recovery. Summary of the invention
[0004] In order to overcome the drawbacks of existing knee orthosis due to structural limitations as described in the background technology, the present invention provides a bionic knee orthosis based on the knee orthosis body. Under the joint action of relevant mechanisms during application, the device can activate muscles and blood in the patient's affected part through a vibration motor, effectively prevent the device from slipping off the patient's leg, monitor the force applied when the patient is tied with ropes, and remind the patient to correct the binding force of the ropes in time when the binding force is too large or too small, and can generate an alarm signal in time to remind the patient when the patient is exercising and the range of joint movement is too large or too small, and can transmit the patient's effective exercise data per unit time in real time via wireless means, so that remote related medical staff can timely understand the patient's exercise situation through the smart phone or PC application nearby, thereby bringing convenience to both patients and medical staff and improving the rehabilitation effect of the patient's affected part.
[0005] The technical solution adopted by the present invention to solve its technical problem is: A bionic knee joint orthosis that prevents slipping, comprising a component box, a vibration motor, and a knee joint orthosis body, characterized in that it also has a binding force monitoring mechanism, a binding force monitoring circuit, an exercise intensity detection circuit, an exercise data sending circuit, and a data receiving and analyzing unit; the data receiving and analyzing unit is an application software installed in an Internet device; the binding force monitoring mechanism has multiple sets, and each set of the binding force monitoring mechanism includes a shell, a spring, a force-sensitive resistor, a piston, a fixing ring, and an adjustable resistor. The force-sensitive resistor is installed at one side end of the shell, there are at least two springs, and one side end of the piston is installed There is a guide column, a guide hole is provided on the other side of the shell, the piston is movably sleeved in the shell and the guide column is located in the guide hole, one of the springs is located between the other side end of the piston and the force-sensitive resistor force-bearing surface, the other spring is located between one side end of the piston and the other side of the shell, one side of the fixing ring and the side end of the guide column are installed together, the shells of multiple sets of binding force monitoring mechanisms are respectively installed on one side end of the knee joint orthosis body, and the fixing rings of the multiple sets of binding force monitoring mechanisms are respectively installed with left binding ropes; the other side end of the knee joint orthosis body is installed with multiple fixing cavities, and the multiple fixing cavities are respectively installed with right binding ropes The inner end of the leg guard of the knee joint orthosis body is installed with a fixed adsorption belt, and one end of the two leg guards of the knee joint orthosis body is hinged and installed together, a connecting rod is installed on the lower side of the other end of one leg guard, and an adjustable resistor A is installed on the upper side of the other end of the other leg guard, the handle of the adjustable resistor A and the lower end of the connecting rod are installed together, a magnet is installed on the inner side of the connecting rod, and at least two reed switches are installed on the upper and lower parts of the outer side of the shell of the adjustable resistor A; the adjustable resistors and vibration motors, the binding force monitoring circuit, and the exercise intensity detection circuit of the multiple sets of binding force monitoring mechanisms The detection circuit and the exercise data sending circuit are installed in the component box, and the component box is installed on the outside of one of the leg guards; the signal output ends of the multiple sets of binding force monitoring mechanisms are electrically connected to the multi-channel signal input ends of the binding force monitoring circuit, the signal output end of the adjustable resistor A is electrically connected to the signal input end of the exercise intensity detection circuit, and the signal output ends of the two reed switches are electrically connected to the signal input end of the exercise data sending circuit; the data receiving unit can receive data transmitted wirelessly by the exercise data sending circuit, and can count the number of effective knee joint exercises of the patient in unit time.
[0006] Furthermore, the reed switch is a normally open contact reed switch, and the reed switch and the magnet are spaced a distance apart.
[0007] Furthermore, in the multiple sets of binding force monitoring mechanisms, one end of the force-sensitive resistor and one end of the adjustable resistor are electrically connected.
[0008] Furthermore, the binding force monitoring circuit includes an electrically connected single-chip microcomputer module and an indication sub-circuit. There are multiple sets of indication sub-circuits, each set includes a transistor, a resistor and an indicator light. The positive power input ends of the two indicator lights are connected, the collectors of the two transistors are respectively connected to the negative power input ends of the two indicator lights, one end of the two resistors is respectively connected to the bases of the two transistors, and the emitters of the two transistors are connected. The positive power input end and the negative power input end of the single-chip microcomputer module are respectively connected to the positive power input ends of the indicator lights and the emitters of the two transistors of the four sets of indication sub-circuits, and the multi-channel output end of the single-chip microcomputer module is respectively connected to the other ends of multiple resistors of the multiple sets of indication sub-circuits.
[0009] Furthermore, the exercise intensity detection circuit includes electrically connected adjustable resistors, resistors and transistors, relays, and buzzers, one end of two adjustable resistors is connected, the other end of the first adjustable resistor is connected to one end of the second resistor and one end of the third resistor, the other end of the second adjustable resistor is connected to one end of the third resistor and one end of the fourth resistor, the other end of the second resistor is connected to the base of the first transistor, the other end of the fourth resistor is connected to the base of the second transistor, the other end of the first resistor and the other end of the third resistor are connected to the emitters of the two transistors and the control power input end of the relay, the collector of the second transistor is connected to the negative power input end of the relay, the collector of the first transistor, the normally closed contact end of the relay and the negative power input end of the buzzer are connected, and the positive power input end of the buzzer is connected to the positive power input end of the relay.
[0010] Furthermore, the exercise data sending circuit includes a single-chip microcomputer module A and a relay, a GPRS module, and a counter. The power input ends of the single-chip microcomputer module A, the counter, and the GPRS module are respectively connected, the power output end of the single-chip microcomputer module A is connected to the power input end of the relay, the relay control contact end and the normally open contact end are respectively connected to the two contacts under the cumulative counting key of the counter, and the signal output end of the counter is further connected to the signal input end of the GPRS module.
[0011] Furthermore, the data receiving unit counts the number of effective knee joint exercises of the patient within a unit time. Within the unit time, when the patient's knee moves forward and backward to a certain angle, the magnet and the two reed switches are close to each other, and the internal contacts of the two reed switches are closed, it is a valid exercise data.
[0012] Furthermore, the single chip microcomputer module and single chip microcomputer module A can also be replaced by a small computer system.
[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) Based on the knee joint orthosis body, the present invention can vibrate the affected part of the patient through the vibration motor in application, which can activate the muscles, blood, ligaments, etc.; because the inner side of the leg guard has a fixed adsorption belt, it can effectively prevent the device from slipping off the patient's leg, achieving a good fixed exercise effect. (2) The binding force monitoring circuit and the binding force monitoring mechanism can monitor the force applied to the patient when the binding rope is tied, and can timely light up to remind the patient to correct the binding force of the binding rope when the binding force is too large or too small, and can generate an alarm signal to remind the patient in time when the patient is exercising and the range of joint movement is too large or too small under the action of the exercise intensity detection circuit and the adjustable resistor, thereby preventing the adverse effects of excessive or insufficient exercise intensity on the patient. (3) The exercise data sending circuit and the data receiving unit can transmit the effective exercise data of the patient in a unit time in real time by wireless means, and the remote medical staff can timely understand the patient's exercise situation through the smart phone or PC application nearby, which brings convenience to the management of the medical staff and can promote the improvement of the rehabilitation effect of the patient's affected part. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] Figure 1 It is a schematic diagram of the overall structure and the partially enlarged structure of the present invention.
[0016] Figure 2 , 3 4 is a schematic diagram of the local structure of the present invention.
[0017] Figure 5 It is a circuit diagram of the present invention. DETAILED DESCRIPTION
[0018] Figure 1 , 2 , 3, 4, and 5, a bionic knee joint orthosis that prevents slipping, including a battery G1, a power switch S1, a charging socket CZ1, a component box 1, a vibration motor M, a knee joint orthosis body 2, and a binding force monitoring mechanism 5 ( Figure 5In the figure, only one set is drawn for representative illustration), binding force monitoring circuit 3, exercise intensity detection circuit 4, exercise data sending circuit 6, data receiving and analyzing unit; the data receiving and analyzing unit is an application software installed in an intelligent Internet device (such as a mobile phone or a PC); the binding force monitoring mechanism 5 has four sets, each of which includes a shell 51, a spring 52, a force-sensitive resistor RT (and the wire connected to it is led outward through the opening at the left outer end of the shell), a piston 53, a fixing ring 54, and an adjustable resistor RP. The force-sensitive resistor RP is sheathed in a rubber sleeve (which protects the force-sensitive resistor). The resistor RP is glued to the left end of the housing 51 with the force-bearing surface facing the right end. There are two springs 52. A guide column 55 is horizontally welded to the right end of the piston 52. There is an opening in the middle of the right end of the housing 51. The piston 53 is movably sleeved in the housing 51 and the guide column 55 is located in the opening of the housing 51 (the guide column can move left or right along the opening). One of the springs 52 is located between the left end of the piston 53 and the force-bearing surface of the right end of the force-sensitive resistor RT (the force-bearing surface of the force-sensitive resistor RT is in contact with the left end of one of the springs 52), and the other spring 52 is located between the right end of the piston 53 and the right end of the housing 51 (playing the role of resetting the piston). The left outer end of the fixing ring 54 and the right outer end of the guide column 55 are welded together, and the left ends of the shells 51 of the four sets of binding force monitoring mechanisms are respectively installed at the left front end of the knee joint orthosis body 1 at intervals from top to bottom. A left binding rope (not shown in the figure) is fixed in each of the fixing rings 54 of the four sets of binding force monitoring mechanisms; the right front end of the knee joint orthosis body has four fixing cavities 56 from top to bottom, and a right binding rope (not shown in the figure) is fixed in each of the four fixing cavities 56. The front ends of the four left binding ropes and the four right binding ropes are tied together; the rear inner ends of the leg guard part of the knee joint orthosis body are respectively glued with a A fixed adsorption belt 21 having a plurality of concave holes on its surface (a microstructure composed of medical-grade silicone or modified thermoplastic polyurethane, designed with grid-like or corrugated protrusions similar to the suction cup of a remora, which can locally expel air under pressure to form a micro-vacuum area, close to the skin to prevent sliding, and the padding material of the adsorption belt has appropriate elasticity, can deform moderately when subjected to force to adapt to the dynamically changing contour of the knee joint, and quickly return to its original shape after the pressure is released to maintain a continuous anti-slip effect. The adsorption belt has the advantages of an easy-to-clean surface and an easy-to-disassemble structure, which is convenient for users to clean regularly, maintain hygiene, and extend the service life).The two leg guards 22 of the knee joint orthosis body are hingedly installed together at the upper and lower ends of the right part, a "¬"-shaped connecting rod 23 is welded on the lower side of the left upper leg guard, a reinforced adjustable resistor ARP1 is fixedly installed horizontally on the left lower leg guard, the left outer side of the handle of the adjustable resistor ARP1 and the right inner side of the lower end of the connecting rod 23 are fixedly installed together, a magnet 24 is glued to the right middle part of the lower end of the connecting rod 23, and a reed switch GH1 and GH2 are glued to the upper and lower parts of the left outer side of the shell of the adjustable resistor ARP1 respectively with double-sided adhesive; the adjustable resistor RP and the battery G1, power switch S1, charging socket CZ1, vibration motor M, binding force monitoring circuit 3, exercise intensity detection circuit 4, and exercise data sending circuit 6 of the four sets of binding force monitoring mechanisms are installed in the component box 1, and the component box 1 is installed on the left outer side of the left lower leg guard 22. The data receiving unit can receive the data transmitted by the exercise data sending circuit in a wireless manner, and can count the number of effective exercises of the patient's knee joint in a unit time.
[0019] Figure 1 , 2 As shown in Figures 3, 4, and 5, the reed switches GH1 and GH2 are normally open contact reed switches, and their moving contact is located at the left end and the static contact is located at the right end. The left ends of the reed switches GH1 and GH2 and the right end of the magnet 24 are spaced apart by a distance (2 mm), and the magnet 24 can pass through the left ends of the two reed switches GH1 and GH2 respectively when rotating. In the four sets of binding force monitoring mechanisms, one end of the force-sensitive resistor RT and one end of the adjustable resistor RP are connected by a wire. The binding force monitoring circuit includes a single-chip microcomputer module A1 and an indication subcircuit 31 connected by circuit board wiring. The indication subcircuit 31 has four sets ( Figure 5A set is drawn in the figure for representative explanation), each set includes transistors T1 and T2, resistors R1 and R2 and indicator lights H1 and H2, the positive power input terminals of the two indicator lights H1 and H2 are connected, the collectors of the two transistors T1 and T2 are connected to the negative power input terminals of the two indicator lights H1 and H2 respectively, one end of the two resistors R1 and R2 are connected to the bases of the two transistors T1 and T2 respectively, the emitters of the two transistors T1 and T2 are connected, the positive power input terminal pin 1 and the negative power input terminal pin 2 of the single-chip microcomputer module A1 are respectively connected to the positive power input terminals of the indicator lights H1 and H2 and the emitters of the two transistors T1 and T2 of the four sets of indication sub-circuits, and the eight-way output terminals 7, 8, 9, 10, 11, 12, 13, and 14 of the single-chip microcomputer module are respectively connected to the other ends of the eight resistors R1 and R2 of the four sets of indication sub-circuits. The exercise intensity detection circuit includes adjustable resistors RP2 and RP3, resistors R3, R4, R5, R6 and transistors T3 and T4, a relay J1, and a buzzer B connected via circuit board wiring; one end of the two adjustable resistors RP2 and RP3 is connected, the other end of the first adjustable resistor RP2 is connected to one end of the second resistor R3 and one end of the third resistor R4, the other end of the second adjustable resistor RP3 is connected to one end of the third resistor R5 and one end of the fourth resistor R6, the other end of the second resistor R4 is connected to the first transistor The base of T3 is connected, the other end of the fourth resistor R6 is connected to the base of the second transistor T4, the other end of the first resistor R3 is connected to the other end of the third resistor R5, the emitters of the two transistors T3 and T4, and the control power input end of the relay J1 is connected, the collector of the second transistor T4 is connected to the negative power input end of the relay J1, the collector of the first transistor T3, the normally closed contact end of the relay J1 and the negative power input end of the buzzer B are connected, and the positive power input end of the buzzer B is connected to the positive power input end of the relay J1. The exercise data transmission circuit includes a single-chip microcomputer module AA2 and a relay J2, a GPRS module A4, and a counter A3 connected by circuit board wiring. The power input ends 1 and 2 of the single-chip microcomputer module AA2, the counter A3, and the GPRS module A4 are connected respectively, the power output ends 3 and 2 of the single-chip microcomputer module AA2 are connected respectively to the power input ends of the relay J2, the control contact end and the normally open contact end of the relay J2 are connected respectively to the two contacts under the cumulative counting key LJ of the counter A3, and the signal output end of the counter A3 is connected to the signal input end of the GPRS module A4. In the data receiving unit, the effective number of exercises of the patient's knee joint in a unit time is counted. In the unit time, the patient's knee moves forward and backward to a certain angle, that is, the magnet 24 is close to the left ends of the two reed switches GH1 and GH2, and the internal contacts of the two reed switches GH1 and GH2 are closed respectively, which is a valid exercise data. The single-chip microcomputer module A1 and the single-chip microcomputer module AA2 can also be replaced by a small computer system.
[0020] Figure 1 , 2As shown in Figures 3, 4 and 5, the two ends of the battery G1 (12V / 10Ah) and the charging socket CZ1 (the socket is located outside the opening at the front end of the component box; when the battery G1 is out of power, the external 12V power charger plug can be inserted into the charging socket CZ1 to charge the battery G1) are connected via wires, and then connected in series via the power switch S1 (the handle is located outside the second box opening of the component box) to the power input end of the four sets of binding force monitoring mechanisms, the other end of the force-sensitive resistor RT and the other end of the adjustable resistor RP, the power input end of the vibration motor M (3W eccentric vibration motor), the power input end of the binding force monitoring circuit, the power input end 1 and 2 of the single-chip module A1, the power input end of the exercise intensity detection circuit, the positive power input end of the buzzer B and the emitter of the transistor T3, the power input end of the exercise data sending circuit, the power input end 1 and 2 of the GPRS module A4, one end of the two reed switches GHI and GH2, and one end of the adjustable resistor ARP1 are connected via wires. One end of the resistor RP at the signal output end of the four sets of binding force monitoring mechanisms is connected to the 3rd, 4th, 5th and 6th pins of the single-chip computer module A1 at the four signal input ends of the binding force monitoring circuit via wires respectively; the signal output end of the adjustable resistor ARP1 is connected to the other ends of the adjustable resistors RP2 and RP3 at the signal input end of the exercise intensity detection circuit via wires; the other ends of the two reed switches GHI and GH2 are connected to the 3rd and 4th pins of the single-chip computer module AA2 at the signal input end of the exercise data sending circuit via wires respectively.
[0021] Figure 1 , 2As shown in , 3, 4, and 5, before using the present invention, one or two sets of leg guards 22 of the knee joint orthosis body 2 are respectively put on one or both thighs and the rear end of the calf of a person, and then four left binding ropes and right binding ropes are tied together to fix the present invention on the upper and lower ends of the rear side of the knee of a person. After turning on the power switch S1, the power input ends of the four sets of binding force monitoring mechanisms, the vibration motor M, the binding force monitoring circuit, the exercise intensity detection circuit, and the exercise data sending circuit, one end of the two reed switches GHI and GH2, and one end of the adjustable resistor ARP1 are powered. After the corresponding set of binding force monitoring mechanisms and binding force monitoring circuits are powered on and working, when the corresponding left binding rope and the corresponding right binding rope are properly tied, the corresponding left binding rope drives the corresponding piston 53 to move to the right end through the fixing ring 54 with a proper spacing, the left end of the corresponding piston 53 compresses the corresponding spring 52 at the left end of the corresponding housing 51 with a proper force, the corresponding spring 52 at the left end of the corresponding housing 51 compresses the force surface of the corresponding force-sensitive resistor RT with a relatively proper force, the resistance value of the corresponding force-sensitive resistor RT is proper, and the voltage divided between it and the adjustable resistor RP is proper (for example, 6V), and the corresponding two-way power output terminals 7 and 8 (or 9 and 10, 11 and 12, 13 and 14) of the single-chip module A1 do not output power, then, the corresponding indicator light H1 or H2 shall not be electrically illuminated, indicating that the force after the corresponding left binding rope and the right binding rope are tied to the human leg is proper. When the corresponding left binding rope and the right binding rope are tied too tightly, the corresponding left binding rope drives the corresponding piston to move to the right side with a relatively large spacing, and the left end of the corresponding piston 53 compresses the corresponding spring 52 at the left end of the corresponding shell 51 with a relatively small force. In this way, the corresponding spring 52 at the left end of the corresponding shell 51 compresses the force-bearing surface of the corresponding force-sensitive resistor RT with a relatively small force, and the resistance value of the corresponding force-sensitive resistor RT becomes larger, and the voltage divided between it and the adjustable resistor RP is large (for example, higher than 6.2V, and the voltage entering the corresponding signal input terminal of the single-chip module is 5.8V). The corresponding power output terminal 7 pin of the single-chip module A1 (or 9-pin, 11-pin, 13-pin) output power, then the corresponding indicator light H1 will light up (the high level output from the corresponding output end of the single-chip computer module A1 enters the base of the corresponding transistor T1 through the corresponding resistor R1 for voltage reduction and current limiting, and the corresponding transistor T1 is turned on and the collector outputs a low level and enters the negative power input end of the corresponding indicator light H1, and the corresponding indicator light H1 will light up), indicating that the force applied after the corresponding left and right ropes are tied to the human legs is too large (when the patient sees the corresponding indicator light H1 lighting up, the corresponding left and right ropes can be loosened to avoid causing discomfort to the patient in subsequent exercises).When the corresponding left binding rope and the right binding rope are tied too loosely, the corresponding left binding rope drives the corresponding piston 53 to move to the right side with a relatively small spacing, and the left end of the corresponding piston 53 compresses the corresponding spring 52 at the left end of the corresponding shell 51 with a relatively large force, and the corresponding spring 52 at the left end of the corresponding shell 51 compresses the force-bearing surface of the corresponding force-sensitive resistor RT with a relatively large force, and the resistance value of the corresponding force-sensitive resistor RT becomes smaller, and the voltage divided between it and the adjustable resistor RP is small (for example, lower than 5.4V, and the voltage entering the corresponding signal input terminal of the single-chip module is 6.6V), and the corresponding power output terminal 8 pin of the single-chip module A1 ( or 10, 12, 14) output power, then the corresponding indicator light H2 will be electrically lit (the high level outputted by the corresponding output terminal of the single-chip microcomputer module A1 enters the corresponding resistor R2 to reduce the voltage and limit the current and enter the base of the corresponding transistor T2, and the corresponding transistor T2 conducts and the collector outputs a low level and enters the negative power input terminal of the corresponding indicator light H2, and the corresponding indicator light H2 will be electrically lit), indicating that the force applied after the corresponding left and right binding ropes are tied to the human leg is too small (when the patient sees the corresponding indicator light H2 glowing, the corresponding left and right binding ropes can be tightened to avoid discomfort to the patient in subsequent exercise). In the above technical solution, the technicians pre-set different threshold data for the single-chip microcomputer A1 through the PC. Specifically, it can be set that when the voltage signals of pins 3, 4, 5, and 6 are relatively high or low, the 7 and 8 pins (or pins 9 and 10, pins 11 and 12, pins 13 and 14) of the single-chip microcomputer module A1 output power, that is, set the appropriate large or small binding force threshold. The other spring plays a resetting role. It should be noted that although the spring 52 can absorb part of the force after being compressed, the pressure acting on the force-sensitive resistor RT will still change greatly or slightly when compressed or relaxed.
[0022] Figure 1 , 2As shown in Figures 3, 4 and 5, during the exercise of the present invention, when the patient's thigh and calf move forward and backward along the knee, the right upper and lower leg guards 22 of the joint orthosis body 2 will rotate along the hinge point, and the left upper leg guard 22 will drive the handle of the adjustable resistor ARP1 to rotate via the connecting rod 23. The resistance value of the adjustable resistor ARP1 increases when the patient's calf moves forward, and decreases when the patient's calf moves backward. After the adjustable resistor ARP1 and the exercise intensity detection circuit are powered on, when the patient's calf moves backwards a relatively small distance (the knee joint has a relatively small backward range of motion), the resistance value of the adjustable resistor ARP1 is relatively large, and the 12V power supply is relatively small through the adjustable resistor ARP1, the voltage division between the adjustable resistor RP2 and the resistor R3 (the voltage division between the adjustable resistor RP2 and the resistor R3 is small), the voltage signal enters the base of the transistor T3 through the resistor R4 with a voltage reduction and current limiting value lower than 0.7V, and the transistor T3 will not be turned on, then the buzzer B will not be powered on and sound, indicating that the patient's calf movement range backwards is appropriate but not too large. When the patient's calf moves backward a relatively large distance (that is, the knee joint moves backward a relatively large range), the resistance value of the adjustable resistor ARP1 is relatively small, and the 12V power supply is relatively large through the adjustable resistor ARP1, the adjustable resistor RP2 and the resistor R3 (the voltage division between the adjustable resistor RP2 and the resistor R3 is large). The voltage signal enters the base of the transistor T3 through the resistor R4 for voltage reduction and current limiting, and is higher than 0.7V. The transistor T3 will turn on the collector to output a low level and enter the negative power input terminal of the buzzer B. Then the buzzer B will be energized and sound, indicating that the patient's calf moves backward too much. After the patient hears the sound, the range of motion of the calf can be reduced while the calf moves backward. When the patient's calf moves forward a relatively small distance (that is, the forward range of motion of the knee joint is relatively small), the resistance value of the adjustable resistor ARP1 is relatively small, and the voltage divided by the 12V power supply through the adjustable resistor ARP1, the adjustable resistor RP3 and the resistor R5 is relatively small (the voltage divided by the adjustable resistor RP3 and the resistor R5 is large). The voltage signal enters the base of the transistor T4 with a voltage reduction and current limiting through the resistor R6, which is higher than 0.7V. The transistor T4 will turn on the collector to output a low level and enter the negative power input terminal of the relay J1. The relay J1 is energized to close its control power input terminal and the normally closed contact terminal is open. Then, the buzzer B will not be energized to sound, indicating that the forward movement range of the patient's calf is appropriate but not too large. When the patient's calf moves forward a relatively large distance (the knee moves forward with a relatively large amplitude), the resistance value of the adjustable resistor ARP1 is relatively large, and the voltage division of the 12V power supply through the adjustable resistor ARP1, the adjustable resistor R3 and the resistor R5 is relatively large (the voltage division between the adjustable resistor RP3 and the resistor R5 is small). The voltage signal enters the base of the transistor T4 through the resistor R6 with a voltage reduction and current limiting, and is lower than 0.7V. The transistor T4 will cut off the collector and no longer enter the negative power input terminal of the relay J1 at a low level. The relay J1 loses power and no longer attracts its control power input terminal and the normally closed contact terminal to close. The buzzer B will be energized and sound, indicating that the patient's calf moves forward too much. After hearing the sound, the patient can reduce the amplitude of the movement of the calf forward.In the present invention, the handles of the adjustable resistors RP2 and RP3 are located outside the opening at the left end of the component box. When the medical staff adjusts the high or low resistance values of the adjustable resistors RP2 and RP3 respectively, the voltage divider between the adjustable resistor ARP1 and the adjustable resistor RP2 and the resistor R3, and between the adjustable resistor RP3 and the resistor R5 is large or small. In this way, the larger or smaller the amplitude of the patient's calf movement backward or forward is, the buzzer B will be powered on and sound. That is, the calf movement amplitude threshold of the present invention can be set relatively large or relatively small according to needs.
[0023] Figure 1 , 2As shown in 3, 4, and 5, after the exercise data transmission circuit is powered on, whenever the patient's calf moves forward and backward to a certain range, the connecting rod 23 drives the magnet 24 to rotate. If the patient's calf moves forward and backward to a required range, that is, when the magnet 24 passes through the left ends of the reed switches GH1 and GH2 respectively within a unit time (for example, 4 seconds), the internal contacts of the reed switches GH1 and GH2 are closed, the positive electrode of the 12V power supply will enter the signal input terminals 3 and 4 of the single-chip module AA2 within 4 seconds. Under the action of its internal programming, the 5th pin of the single-chip module AA2 will output a high level for 1 second to enter the power input terminal of the relay J2. The relay J2 is powered on to attract its control contact terminal and the normally open contact terminal to close once, and then the counter A3 accumulates the count once. In other words, every time the patient exercises, when the forward and backward movement range of the calf reaches the required range within the corresponding time (if the corresponding time is exceeded, even if the internal contacts of the two reed switches GH1 and GH2 are closed, the 3rd pin of the single-chip module AA2 will not output a high level), the counter A3 will accumulate the count once. In the above technical solution, the technician modifies the internal threshold of the single-chip computer AA2 in advance through the PC, and can set the time interval of the voltage signal input to the 3rd and 4th pins to be long or short, and the 5th pin of the single-chip computer module AA2 outputs the power supply, that is, sets the interval time threshold of the corresponding patient's calf forward and backward movement (by adjusting the distance between the two reed switches GH1 and GH2, the threshold of the patient's calf forward and backward movement amplitude can be adjusted. When the distance is larger, the forward and backward movement amplitude of the calf is too large, and the relay J2 will be energized, that is, the threshold of the distance between the patient's calf forward and backward movement of the present invention is set relatively large, and the smaller the distance is, the smaller the forward and backward movement amplitude of the calf is, the relay J2 will be energized, that is, the threshold of the distance between the patient's calf forward and backward movement of the present invention is set relatively small). After the counter A3 is energized, the real-time accumulated patient exercise times data will be sent out through the GPRS module A4. After the data receiving unit installed on the smart phone or PC of the remote relevant management medical staff receives the exercise number, the data receiving unit can count the effective number of knee joint exercises of the patient in unit time. The medical staff can view the patient's daily or corresponding time period exercise data in real time through the mobile phone, PC and other screens (GPRS module transmits data, and remote Internet devices receive and display data. This is an existing mature Internet of Things data receiving and sending technology, and this application does not provide any protection for the above technical solution).
[0024] Figure 1 , 2As shown in , 3, 4, and 5, through the above, the present invention can activate the muscles, blood, ligaments, etc. of the patient's legs; it can effectively prevent the equipment from slipping off the patient's legs, and achieve a good fixation exercise effect; when the binding force is too large or too small, it can promptly emit light to remind the patient to correct the binding force of the binding rope; during the patient's exercise, if the range of joint movement is too large or too small, it can promptly generate an alarm signal to remind the patient, thereby preventing the adverse effects of excessive or insufficient exercise intensity on the patient; remote related medical staff can timely understand the patient's exercise situation through the smart phone or PC application nearby, which brings convenience to the management of medical staff and can promote the improvement of the rehabilitation effect of the patient's affected part. Figure 5 As shown, the resistance values of resistors R1, R2, R3, R4, R5, and R6 are 4.7K, 4.7K, 10K, 4.7K, 10K, 4.7K, respectively; GPRS module A4 is a finished GPRS module of model HF2411; the main control chip of single-chip module A1 and single-chip module AA2 is STR12C5A60S2; the resistance value of adjustable resistors RP, RP1, RP2 (adjusted to 87K in this embodiment), and RP3 (adjusted to 81K in this embodiment) is 470K; relays J1 and J2 are DC12V relays; buzzer B is The finished product of the active continuous sound buzzer alarm is model MF12V; the transistors T1, T2, T3, and T4 are NPN transistors of model 9013; the force sensitive resistor RT is model FSR402; the indicator lights H1 and H2 are LED indicator lights; the reed switches GH1 and GH2 are normally open contact reed switches; the counter A3 is a counter of model HB965, which has two power input terminals, an accumulation counting button (accumulation counting is performed each time it is connected), a reset button (accumulation counting is reset each time it is pressed), and an RS485 data output port.
[0025] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.
[0026] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A bionic knee joint orthosis that prevents slipping, comprising a component box, a vibration motor, and a knee joint orthosis body, characterized in that: It also has a binding force monitoring mechanism, a binding force monitoring circuit, an exercise intensity detection circuit, an exercise data sending circuit, and a data receiving and analyzing unit; the data receiving and analyzing unit is an application software installed in an Internet device; the binding force monitoring mechanism has multiple sets, and each set of the binding force monitoring mechanism includes a shell, a spring, a force-sensitive resistor, a piston, a fixed ring, and an adjustable resistor. The force-sensitive resistor is installed at one end of the shell, there are at least two springs, a guide column is installed at one end of the piston, and a guide hole is provided on the other side of the shell. The piston is movably sleeved in the shell and the guide column is located in the guide hole, one of the springs is located between the other end of the piston and the force-bearing surface of the force-sensitive resistor, and the other spring is located between one end of the piston and the other side of the shell. One side of the fixed ring and the side end of the guide column are installed together, and the shells of the multiple sets of binding force monitoring mechanisms are respectively installed at one end of the knee joint orthosis body, and the left binding ropes are respectively installed in the fixed rings of the multiple sets of binding force monitoring mechanisms; the other end of the knee joint orthosis body is installed with multiple fixed cavities, and the right binding ropes are respectively installed in the multiple fixed cavities; the inner end of the leg guard part of the knee joint orthosis body is respectively installed A fixed adsorption belt is installed, and one end of the two leg guards of the knee joint orthosis body are hinged and installed together, a connecting rod is installed on the lower side of the other end of one of the leg guards, and an adjustable resistor A is installed on the upper side of the other end of the other leg guard, the handle of the adjustable resistor A and the lower end of the connecting rod are installed together, a magnet is installed on the inner side of the connecting rod, and at least two reed switches are installed on the upper and lower parts of the outer side of the shell of the adjustable resistor A respectively; the adjustable resistors and vibration motors, binding force monitoring circuits, exercise intensity detection circuits, and exercise data sending circuits of the multiple sets of binding force monitoring mechanisms are installed in a component box, and the component box is installed on the outer side of one of the leg guards; the signal output ends of the multiple sets of binding force monitoring mechanisms are electrically connected to the multi-channel signal input ends of the binding force monitoring circuit, the signal output ends of the adjustable resistor A are electrically connected to the signal input end of the exercise intensity detection circuit, and the signal output ends of the two reed switches are electrically connected to the signal input end of the exercise data sending circuit; the data receiving unit can receive data transmitted wirelessly by the exercise data sending circuit, and can count the number of effective exercises of the patient's knee joint in a unit time.
2. The anti-slip bionic knee orthosis according to claim 1, characterized in that: The reed switch is a normally open contact reed switch, and the reed switch is spaced a distance from the magnet.
3. The anti-slip bionic knee orthosis according to claim 1, characterized in that: In the plurality of binding force monitoring mechanisms, one end of the force sensitive resistor is electrically connected to one end of the adjustable resistor.
4. The anti-slip bionic knee orthosis according to claim 1, characterized in that: The binding force monitoring circuit includes an electrically connected single-chip microcomputer module and an indication sub-circuit. There are multiple sets of indication sub-circuits, each set includes a transistor, a resistor and an indicator light. The positive power input ends of the two indicator lights are connected, the collectors of the two transistors are respectively connected to the negative power input ends of the two indicator lights, one end of the two resistors is respectively connected to the bases of the two transistors, and the emitters of the two transistors are connected. The positive power input end and the negative power input end of the single-chip microcomputer module are respectively connected to the positive power input ends of the indicator lights and the emitters of the two transistors of the four sets of indication sub-circuits, and the multi-channel output end of the single-chip microcomputer module is respectively connected to the other ends of multiple resistors of the multiple sets of indication sub-circuits.
5. The anti-slip bionic knee orthosis according to claim 1, characterized in that: The exercise intensity detection circuit includes an adjustable resistor, a resistor and a transistor, a relay, and a buzzer which are electrically connected. One end of two adjustable resistors is connected, the other end of the first adjustable resistor is connected to one end of the second resistor and one end of the third resistor, the other end of the second adjustable resistor is connected to one end of the third resistor and one end of the fourth resistor, the other end of the second resistor is connected to the base of the first transistor, the other end of the fourth resistor is connected to the base of the second transistor, the other end of the first resistor and the other end of the third resistor are connected to the emitters of the two transistors and the control power input end of the relay, the collector of the second transistor is connected to the negative power input end of the relay, the collector of the first transistor, the normally closed contact end of the relay and the negative power input end of the buzzer are connected, and the positive power input end of the buzzer is connected to the positive power input end of the relay.
6. The anti-slip bionic knee orthosis according to claim 1, characterized in that: The exercise data sending circuit includes a single-chip microcomputer module A and a relay, a GPRS module, and a counter. The power input ends of the single-chip microcomputer module A, the counter, and the GPRS module are respectively connected, the power output end of the single-chip microcomputer module A is connected to the power input end of the relay, the relay control contact end and the normally open contact end are respectively connected to the two contacts under the cumulative counting key of the counter, and the signal output end of the counter is then connected to the signal input end of the GPRS module.
7. The anti-slip bionic knee orthosis according to claim 1, characterized in that: The data receiving unit counts the number of effective knee joint exercises of the patient within a unit time. Within the unit time, when the patient's knee moves forward and backward to a certain angle, the magnet and the two reed switches are close to each other, and the internal contacts of the two reed switches are closed, it is a valid exercise data.
8. The anti-slip bionic knee orthosis according to claim 6, characterized in that: The single-chip microcomputer module and the single-chip microcomputer module A can also be replaced by a small computer system.