Limb restraining device

Abstract

The utility model relates to the field of medical instruments, in particular to a limb restraining device which comprises a restraining shell, a restraining belt and a locking mechanism. The restraint shell is a semi-wrapped shell conforming to a joint anatomical structure, the restraint strap is arranged on one side of the restraint shell, and the restraint shell comprises a first fixing part and a second fixing part; the first fixing piece is rotationally connected with the second fixing piece, and the rotating range is limited through the locking mechanism. Through cooperative work of the restraint shell, the restraint strap and the locking mechanism, the restraint strap and the restraint shell surround and support joints and fix limbs of a patient, stable restraint force is provided, and the situation that recovery of an affected part is hindered due to excessive distortion or improper stress of the patient is avoided; the first fixing piece and the second fixing piece are rotatably connected through the locking mechanism, a certain degree of flexion adjustment is allowed, and a patient can easily achieve switching between a constraint state and an exercise state by controlling opening and closing of the locking mechanism.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a limb restraint device. Background Art

[0002] In clinical nursing, for patients in intensive care, post-operatively or with impaired consciousness, in order to prevent unplanned extubation due to agitation, unconsciousness and other reasons, traditional restraint tools such as restraint belts, restraint handkerchiefs, and restraint clothing are generally used for protective restraint. Most existing restraint devices only focus on the restraint function itself and fail to fully consider the rehabilitation needs of patients, especially for critically ill patients with long-term courses such as stroke. During the rehabilitation process, they need to persist in limb function training for a long time to promote muscle strength recovery and overall rehabilitation effect. Therefore, there is a need for a new type of restraint device that can take into account the restraint function while assisting patients in limb function training to ensure the effectiveness of rehabilitation.

[0003] CN215080559U discloses a limb restraint device with an exercise function for ICU nursing, comprising a restraint device body, wherein the restraint device body comprises a first connecting plate, a second connecting plate and a rotating shaft, a second connecting plate is arranged on the right side of the back side of the first connecting plate, a connecting through hole is opened on the right side of the front side of the first connecting plate, a rotating shaft is arranged on the left side of the front side of the second connecting plate, a first binding component is arranged on the left side of the front side of the first connecting plate, a fixing component is arranged on the left side of the back side of the first connecting plate, a driving component is arranged on the right side of the front side of the first connecting plate, the second connecting plate is rotatably connected to the first connecting plate via the rotating shaft, a second binding component is arranged on the right side of the front side of the second connecting plate, and a supporting sleeve is arranged on the right side of the back side of the second connecting plate, which can drive the limbs to exercise and ensure the functionality of the limbs, thereby helping the patient's recovery. This type of limb restraint device has the following disadvantages: 1) There is no shell to surround the limbs and support the joints, so it cannot provide stable restraint for the joints, making it difficult to avoid excessive distortion or improper stress on the affected area. Stable restraint is particularly important for patients who have undergone surgery or suffer from ligament injuries (such as anterior / posterior cruciate ligament or medial and lateral collateral ligament injuries), meniscus injuries or osteoarthritis; 2) It is impossible to limit the range of motion of the joints (i.e., the angles of flexion and extension), which is especially important in the early stages of rehabilitation. By limiting movement at specific angles, further damage caused by excessive activity can be avoided, while ensuring that necessary joint activities are performed within a safe range to promote recovery. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the purpose of the utility model is to provide a limb restraint device that can provide a stable restraining force and limit the range of motion of the joint.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A limb restraint device comprises a restraint shell, a restraint belt and a locking mechanism; the restraint shell is a semi-wrapped shell that conforms to the anatomical structure of the joint, the restraint belt is arranged on one side of the restraint shell, and the restraint shell comprises a first fixing member and a second fixing member; the first fixing member is rotatably connected to the second fixing member, and the rotation range is limited by the locking mechanism.

[0007] As a preferred embodiment, the locking mechanism is a latch, which includes a latch seat, a pin hole seat, and a latch rod; the latch seat is fixedly connected to the lower end of the first fixing member, the pin hole seat is fixedly connected to the upper end of the second fixing member, the pin hole seat and the latch seat are correspondingly arranged, and are detachably connected through the latch rod.

[0008] As a preference, it further includes a counter, wherein the lower end of the first fixing member is rotationally connected to the upper end of the second fixing member through gear meshing, and the counter is transmission-connected to the gear.

[0009] As a preference, the limb restraint device also includes a pressure sensor, a speaker and an electronic control module. The pressure sensor is arranged on the locking mechanism, the speaker is arranged on the outside of the restraint shell, and the counter, the pressure sensor and the speaker are electrically connected to the electronic control module respectively.

[0010] As a preferred embodiment, it further comprises a limb joint bending angle measuring device, one end of the limb joint bending angle measuring device is connected to the first fixing member, and the other end of the limb joint bending angle measuring device is connected to the second fixing member.

[0011] As a preferred embodiment, the restraint belt is provided with Velcro.

[0012] As a preferred embodiment, the restraint belt is made of elastic rubber material.

[0013] As a preference, the first fixing member and the second fixing member both include an outer shell and a liner, and the liner is detachably arranged on the inner side of the outer shell.

[0014] Preferably, the shell is made of polycarbonate, carbon fiber or high-strength resin.

[0015] As a preference, the padding is made of memory foam, gel, silicone or fleece.

[0016] In general, the utility model has the following advantages:

[0017] 1. The utility model uses a restraint shell, a restraint belt and a locking mechanism to work together. The restraint belt and the restraint shell surround and support the joint, fix the patient's limbs, provide a stable restraint force, and prevent the patient from being hindered from recovering from the affected part due to excessive twisting or improper stress. The first fixing member is rotatably connected to the second fixing member and is connected through a locking mechanism, allowing a certain degree of flexion adjustment. The patient can easily switch between the restraint state and the exercise state by controlling the opening and closing of the locking mechanism.

[0018] 2. The first fixing member and the second fixing member of the utility model are rotatably connected via a transmission gear. This design not only realizes the adjustability of the range of motion, but is also connected to a counter. When the patient's limbs move (such as flexion or extension), the transmission gear rotates accordingly, and the counter records these movements, thereby quantifying the frequency and amplitude of the limb activities and realizing exercise monitoring.

[0019] 3. The pressure sensor of the utility model is located at the bottom of the pin hole seat, which can sense the switch between the restraint mode and the exercise mode. The data of the pressure sensor is transmitted to the counter through the circuit. After the counter processes the data, it issues a sound reminder through the speaker. This helps patients to understand the exercise status in time, and also enables medical staff to clearly understand the compliance of patients with functional exercises, so as to carry out health education more targetedly and realize real-time feedback.

[0020] 4. The limb joint bending angle measuring device of the utility model is arranged on the inner wall of the constraint shell, which can dynamically measure the joint and truly reflect the bending degree of the joint, which is helpful for patients and medical staff to carry out refined management of the rehabilitation process, evaluate the treatment effect, and adjust the treatment plan in time.

[0021] 5. The restraint belt of the utility model is convenient and quick to wear and adjust the tightness through Velcro, and is made of elastic rubber material. The rubber has good elasticity and durability, can withstand long-term stretching and use, can adapt to different body shapes, and can reduce the pressure on the skin.

[0022] 6. The liner of the utility model is detachably connected to the shell, and the liner can be removed from the shell for replacement and cleaning to keep the skin and the liner clean.

[0023] 7. The outer shell of the restraint shell of the utility model is made of high-strength materials such as polycarbonate, carbon fiber or high-strength resin, which is corrosion-resistant and hard, and can be wiped with a disinfectant to keep the outer shell clean. At the same time, due to the high hardness of the material, its restraint ability is enhanced, ensuring that the structure is stable and durable, and ensuring the safety of the patient.

[0024] 8. The padding of the utility model adopts memory foam, gel, silicone or fleece surface material, which can not only improve the wearing comfort and reduce the risk of pressure sores caused by long-term restraint, but also can be repeatedly cleaned and recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a limb restraint device in an embodiment of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the locking mechanism in the embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the internal structure of the locking mechanism in the embodiment of the utility model;

[0028] Figure 4 is an exploded view of a limb restraint device in an embodiment of the utility model;

[0029] Figure 5 yes Figure 4 A magnified view of point A;

[0030] Figure 6 It is a schematic diagram of the internal structure of the restraining housing in the embodiment of the utility model;

[0031] Figure 7 This is a circuit connection diagram of a counter, a loudspeaker, a pressure sensor, and a limb joint bending angle measuring device in an embodiment of the utility model;

[0032] Figure 8 It is a working flow chart of the loudspeaker in the embodiment of the utility model;

[0033] Wherein: 1: restraint shell, 11: first fixing member, 111: shell, 112: gasket, 113: silicone particles, 114: groove, 12: second fixing member, 121: slide rail, 2: restraint belt, 3: locking mechanism, 31: latch seat, 32: pin hole seat, 33: latch rod, 34, reset button, 35: reset spring, 4: counter, 5: gear, 6: speaker, 7: pressure sensor, 8: Velcro, 9: connecting buckle, 10: limb joint bending angle measuring device. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] like Figures 1 to 7As shown, a limb restraint device includes a restraint shell, a restraint belt and a locking mechanism; the restraint shell is a semi-wrapped shell that conforms to the anatomical structure of the joint, the restraint belt is arranged on one side of the restraint shell, and the restraint shell includes a first fixing member and a second fixing member; the first fixing member is rotatably connected to the second fixing member, and the rotation range is limited by the locking mechanism. The locking mechanism is a latch, and the latch includes a latch seat, a pin hole seat, and a latch rod; the latch seat is fixedly connected to the lower end of the first fixing member, the pin hole seat is fixedly connected to the upper end of the second fixing member, the pin hole seat and the latch seat are arranged correspondingly, and are detachably connected through the latch rod.

[0036] Locking mechanisms are provided on both sides of the connection between the first fixing member and the second fixing member. Specifically, a pin slot is provided on the pin seat, a pin hole is provided on the pin hole seat, a pin rod passes through the pin seat, extends from the pin slot and is connected to the pin hole, restricting the rotation between the first fixing member and the second fixing member, so that the limb cannot be bent, realizing the restraint function; the pin rod is retracted from the pin hole into the pin slot, releasing the locking state between the first fixing member and the second fixing member, so that the limb can be bent, realizing the purpose of exercise.

[0037] As a preferred embodiment, the locking mechanism is a self-elastic bolt. The bolt is provided with a reset structure for the bolt rod to self-elastically reset, the reset structure includes a reset spring and a reset button, the reset spring is sleeved on the outer wall of the bolt rod, the reset button is in transmission connection with the reset spring, by pressing the reset button, the reset spring provides elastic force for the bolt rod, so that the lower end of the bolt rod rebounds from the pin hole seat to the bolt seat, wherein the reset structure can be arranged in a variety of ways, as long as the bolt rod can be self-elastically reset, the self-elastic bolt and the reset structure can be flexibly selected by those skilled in the art according to the needs, and the structure is well known to those skilled in the art, and will not be described in detail here.

[0038] The limb restraint device also includes a counter. The lower end of the first fixing member is rotatably connected to the upper end of the second fixing member through gear meshing, and the counter is transmission-connected to the gear.

[0039] Specifically, the lower end of the first fixing member and the upper end of the second fixing member are both provided with gears, and the gears at the lower end of the first fixing member and the gears at the upper end of the second fixing member mesh with each other; the counter includes a transmission device, a signal input device and a display device, and the transmission device is connected to the gears at the lower end of the first fixing member and the upper end of the second fixing member, and the relative rotation of the first fixing member and the second fixing member is transmitted to the signal input device through the transmission device and converted into a counting action, and finally the value is displayed through the display device. When the patient performs limb flexion and extension movements autonomously, the gears rotate, thereby driving the counter to run, and the counter displays the rotation signal of the gears on the display device, realizing the counting and display functions.

[0040] As a preferred embodiment, the limb restraint device further includes a pressure sensor, a speaker and an electric control module. The pressure sensor is arranged on the locking mechanism, the speaker is arranged on the outside of the restraint housing, and the counter, the pressure sensor and the speaker are electrically connected to the electric control module respectively. The electric control module is pre-set with a control strategy and algorithm. The electric control module receives input signals from the pressure sensor and the counter, and then processes the information and makes corresponding control decisions according to the pre-programmed control strategy and algorithm, and then outputs corresponding instructions to the counter and the speaker, and provides electrical energy to the pressure sensor, the counter and the speaker respectively.

[0041] The pressure sensor of this embodiment is arranged at the bottom of the pin hole seat. When the patient needs to perform flexion and extension exercises, the latch rod is separated from the latch hole, and the latch rod will leave the pressure sensor at the bottom of the pin hole seat. The pressure sensor sends a contact signal to the electronic control module. The electronic control module processes the contact signal according to the pre-programmed control strategy and algorithm, and then sends an output counting instruction to the counter. The counter starts to count according to the rotation of the gear, thereby realizing the function of calculating the number of flexion and extension exercises; when the patient completes the flexion and extension exercise, the latch rod is connected to the latch hole, and the latch rod will contact the pressure sensor at the bottom of the pin hole seat. The pressure sensor sends a contact signal to the electronic control module. The electronic control module processes the contact signal according to the pre-programmed control strategy and algorithm, and then sends an instruction to output the counting result to the counter. The counter sends the counting result information to the electronic control module. The electronic control module processes the counting result information according to the pre-programmed control strategy and algorithm, and then sends an instruction to broadcast the counting result to the speaker. The speaker issues a voice to broadcast the number of flexion and extension exercises of the patient, thereby realizing the function of broadcasting the number of flexion and extension exercises.

[0042] As a preferred embodiment, the device further comprises a limb joint bending angle measuring device, one end of which is connected to the first fixing member, and the other end of which is connected to the second fixing member. The limb joint bending angle measuring device is a flexible device, and when the limb is exercising, the limb joint bending angle measuring device can be rolled up with the bending of the limb joint, so as to read the bending angle of the limb joint when it is bent.

[0043] The limb joint flexion angle measuring device of this embodiment is connected to the speaker signal through the electronic control module. When the patient performs flexion and extension exercises, the limb joint flexion angle measuring device sends the angle information to the electronic control module. The electronic control module processes the angle information according to the pre-programmed control strategy and algorithm, and then sends an instruction to broadcast the angle information to the speaker. The speaker sends a voice to broadcast the bending angle of the patient's limb joint when it is bent, thereby realizing the function of broadcasting the limb joint bending angle.

[0044] For the technical solution of the limb joint bending angle measuring device, please refer to the patent document entitled "A limb joint bending angle measuring device, authorization announcement number CN210749213U".

[0045] The restraint belt is provided with Velcro and is made of elastic rubber.

[0046] The outer walls of both sides of the constraint shell are provided with connecting buckles, one end of the constraint belt is fixed to the right side of the constraint shell through the connecting buckle, and Velcro is set on the other end of the constraint belt. After one end of the constraint belt with Velcro passes through the connecting buckle on the left side of the constraint shell, it is folded back and fixed with Velcro.

[0047] The first fixing member and the second fixing member each include a shell and a liner, and the liner is detachably arranged on the inner side of the shell. The liner is detachably connected to the shell through silica gel particles, and the silica gel particles are adsorbed to the inner side of the shell by the adsorption performance. The shell is made of polycarbonate, carbon fiber or high-strength resin. The liner is made of memory foam, gel, silica gel or velvet surface.

[0048] In this embodiment, the upper end of the bending angle measuring device is fixedly connected to the first fixing member, and the inner wall of the first fixing member housing is provided with a groove corresponding to the upper end of the bending angle measuring device, and the upper end of the bending angle measuring device cooperates with the groove to limit the relative movement of the bending angle measuring device and the first fixing member. The lower end of the bending angle measuring device is movably connected to the second fixing member, and a slide rail corresponding to the lower end of the bending angle measuring device is provided on the inner wall of the second fixing member housing, and the lower end of the bending angle measuring device slides on the second fixing member through the slide rail; or, the lower end of the bending angle measuring device is connected to an elastic hinge (such as a spring), and the lower end of the bending angle measuring device is connected to the inner wall of the second fixing member housing through the elastic hinge.

[0049] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A limb restraint device, characterized in that: It includes a constraint shell, a constraint belt and a locking mechanism; the constraint shell is a semi-wrapped shell that conforms to the anatomical structure of the joint, the constraint belt is arranged on one side of the constraint shell, and the constraint shell includes a first fixing member and a second fixing member; the first fixing member is rotatably connected to the second fixing member, and the rotation range is limited by the locking mechanism.

2. A limb restraint device according to claim 1, characterized in that: The locking mechanism is a latch, which includes a latch seat, a pin hole seat, and a latch rod; the latch seat is fixedly connected to the lower end of the first fixing member, the pin hole seat is fixedly connected to the upper end of the second fixing member, the pin hole seat and the latch seat are correspondingly arranged, and are detachably connected through the latch rod.

3. A limb restraint device according to claim 1, characterized in that: It also includes a counter. The lower end of the first fixing member is rotatably connected to the upper end of the second fixing member through gear meshing, and the counter is transmission-connected to the gear.

4. A limb restraint device according to claim 3, characterized in that: The limb restraint device also includes a pressure sensor, a speaker and an electronic control module. The pressure sensor is arranged on the locking mechanism, the speaker is arranged on the outside of the restraint shell, and the counter, the pressure sensor and the speaker are electrically connected to the electronic control module respectively.

5. A limb restraint device according to claim 1, characterized in that: It also includes a limb joint bending angle measuring device, one end of the limb joint bending angle measuring device is connected to the first fixing member, and the other end is connected to the second fixing member.

6. A limb restraint device according to claim 1, characterized in that: The restraint belt is provided with Velcro.

7. A limb restraint device according to claim 1, characterized in that: The restraint belt is made of elastic rubber.

8. A limb restraint device according to claim 1, characterized in that: The first fixing member and the second fixing member each include an outer shell and a liner, and the liner is detachably arranged on the inner side of the outer shell.

9. A limb restraint device according to claim 8, characterized in that: The shell is made of polycarbonate, carbon fiber or high-strength resin.

10. A limb restraint device according to claim 8, characterized in that: The padding is made of memory foam, gel, silicone, or a fleece surface.

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