Upper arm restraining device for medical nursing

Abstract

The invention discloses an upper arm restraining device for medical nursing, belongs to the technical field of medical apparatuses and instruments, and aims to solve the problems that when a patient suffers from stress in a restrained state, the patient usually does not autonomously clench a fist, so that the risks of skin damage and muscle and nerve fatigue are aggravated, and the risk of accidental injury is increased. Two first containing grooves are symmetrically formed in the upper arm support, first connecting supports are rotatably installed in the two first containing grooves, a fixing piece is fixedly connected to the upper arm support, a shell is fixedly connected to the end, away from the upper arm support, of the fixing piece, and a restraining assembly is arranged in the shell. According to the upper arm restraining device for medical nursing, the arms of a patient are effectively supported in an inflation mode, flexible restraining and supporting can be provided for the upper arms of the patient, locking can be conducted when the patient fiercely counteracts, the local restraining strength is enhanced, stable restraining is formed, and the self-injury behavior is effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically relates to an upper arm restraint device for medical care. Background Technique

[0002] In medical environments such as the psychiatry department, emergency department, and intensive care unit, patients often need to be physically or limb-restrained due to altered consciousness, restlessness, or the risk of self-harm or harming others. In order to ensure the smooth progress of patient treatment and nursing work and prevent the interruption or poor effect of treatment caused by non-cooperation during the treatment process, limb restraint devices are often used to limit their range of motion. However, the existing restraint devices still have certain deficiencies in use.

[0003] For example, an upper limb restraint device with the publication number CN214128982U has an arc-shaped limit groove provided on one bracket, and a limit portion adapted to the limit groove is provided on another bracket. The limit portion is slidably disposed in the limit groove, and the limit portion and the limit groove cooperate to limit the relative rotation angle of the two brackets, which can partially restrain the freedom of movement of the elbow joint of the upper limb, effectively reduce the occurrence of accidental extubation, and have less restraint on the arm, being convenient for use and nursing. However, according to clinical observations and research, when patients are stressed in a restrained state, they usually involuntarily clench their fists. This behavior not only may exacerbate the risks of skin damage, muscle and nerve fatigue, but also further increases the anxiety and restlessness of patients, increasing the risk of accidental injuries that may occur when patients try to break free from the restraint device, bringing greater challenges to medical care work.

[0004] Therefore, an upper arm restraint device for medical care is proposed to solve the problems raised above. Summary of the Invention

[0005] The purpose of the present invention is to provide an upper arm restraint device for medical care to solve the problem in the above background technique that when patients in the current market are stressed in a restrained state, they clench their fists. This behavior not only may exacerbate the risks of skin damage, muscle and nerve fatigue, but also further increases the anxiety and restlessness of patients, bringing greater challenges to medical care work.

[0006] To achieve the above object, the present invention provides the following technical solution: A medical care upper arm restraint device, comprising: an upper arm bracket, two first accommodation grooves are symmetrically opened on the upper arm bracket, and a first connection bracket is rotatably installed in each of the two first accommodation grooves. A fixing member is fixedly connected to the upper arm bracket, and one end of the fixing member away from the upper arm bracket is fixedly connected to a housing. A restraint assembly is arranged in the housing. The restraint assembly includes a rotating shaft rotatably arranged in the housing. A limiting disc is fixedly connected to the rotating shaft. A limiting gear disc is fixedly nested and connected to the outer wall of the rotating shaft on the side of the limiting disc. One end of the rotating shaft penetrates through the housing, and a bracket is fixedly connected to the protruding end of the rotating shaft. A forearm bracket is sleeved on the outer side of the end of the bracket away from the housing. Two second accommodation grooves are symmetrically opened on the forearm bracket, and a second connection bracket is rotatably installed in each of the two second accommodation grooves. Contact members are fixedly connected to the side walls of the opposite sides of the first connection bracket and the second connection bracket. Pressing members are movably connected to the first connection bracket and the second connection bracket on the sides of the contact members. A rotating roller is rotatably installed on the second connection bracket, and a rubber layer is fixedly connected to the outer side of the rotating roller. An air cavity is opened on the forearm bracket, and a telescopic rod is movably connected to the outer wall of the forearm bracket above the air cavity. One end of the telescopic rod away from the forearm bracket is fixedly connected to a grip pressure airbag.

[0007] Preferably, the restraint assembly further includes a moving member. The moving member is arranged in the housing, and a slot is opened on the moving member. An air storage bag is arranged in the slot. A first magnet is fixedly nested and connected to the outer side of the air storage bag. One end of the air storage bag away from the first magnet is fixedly connected to a slider, and a second magnet is fixedly connected to the slider. An arc-shaped limiting member is fixedly connected to the side wall of the slider. The end of the moving member away from the slot penetrates through the housing, and a pulling block is fixedly connected to the protruding end of the moving member.

[0008] Preferably, two air storage bags, first magnets and second magnets are symmetrically arranged with respect to the slider, and the first magnet corresponds to the second magnet, and the opposite sides of the first magnet and the second magnet are like magnetic poles. The slider is slidably connected to the slot. The arc-shaped limiting member on the side of the slider is aligned with the limiting gear disc, and teeth matching the limiting gear disc are opened on the arc-shaped limiting member.

[0009] Preferably, the pulling block is slidably connected to the fixing member, and an auxiliary spring is fixedly connected to the side wall of the pulling block. One end of the auxiliary spring away from the pulling block is fixedly connected to the fixing member.

[0010] Preferably, the bracket is slidably connected to the forearm bracket, and a limiting groove is opened on the bracket. Two rectangular grooves are symmetrically opened on the forearm bracket. Two guide grooves are symmetrically opened on the inner side walls of the two rectangular grooves, and locking members matching the limiting groove are arranged in the two rectangular grooves.

[0011] Preferably, the locking member comprises a pressure plate, a side of the pressure plate close to the bracket is provided with a protrusion matching the limiting groove, a toggle block is movably connected to a section of the pressure plate away from the protrusion, and a column is fixedly connected to the side wall of the pressure plate.

[0012] Preferably, the pressure plate is slidably connected to the toggle block, and two columns are symmetrically arranged on the pressure plate, and the ends of the two pressure plates facing away from each other are both extended into the guide groove and are slidably connected to the guide groove, the toggle block is slidably arranged in the rectangular groove, and the outer wall of the toggle block is fixedly connected to a first spring, the first spring is located in the rectangular groove, and the end of the first spring away from the toggle block is fixedly connected to the inner wall of the rectangular groove.

[0013] Preferably, a cavity is provided in the bracket, the cavity is connected with the air cavity through a hose, and a movable rod is slidably connected in the cavity, one end of the movable rod passes through the bracket, and the protruding end of the movable rod is fixedly connected to an arc plate, the arc plate is arranged in the shell, and a slide groove is provided on the arc plate, an L-shaped piece is slidably connected in the slide groove, and the end of the L-shaped piece away from the slide groove is rotatably connected to the traction plate, a push block is fixedly connected to the outer wall of the traction plate, and the side wall of the traction plate is rotatably connected to a connecting shaft, and a limiting ring is rotatably connected to the traction plate, the end of the connecting shaft away from the traction plate is fixedly connected to the inner wall of the shell, and the bottom end of the connecting shaft is rotatably connected to a deflection plate, and the end of the deflection plate close to the limiting disk is movably connected to a brake column.

[0014] Preferably, one end of the deflection plate close to the traction plate is fitted with a push block, and the deflection plate is pushed by the push block to deflect along the axis point, pushing the brake column to fit with the limiting disk, and the limiting disk is provided with a slot matching the brake column, and the brake column and the slot are arranged in an array in multiple numbers, a second spring is connected between the brake column and the traction plate, and the brake column and the traction plate form an elastic expansion and contraction result through the second spring, the end of the limiting ring away from the traction plate is fixedly connected to the shell, and a torsion spring providing a reset elastic force is connected between the limiting ring and the traction plate, and the limiting ring can fit with the limiting disk for limitation.

[0015] Preferably, a hollow structure is provided between the rubber layer and the rotating roller, and an air flow channel is provided on the rotating roller. The hollow layer between the rubber layer and the rotating roller is connected to the air cavity through the air flow channel. The telescopic rod is a hollow structure, and the gripping airbag is connected to the air cavity through the telescopic rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the upper arm restraint device for medical care uses an inflatable method to achieve effective support for the patient's arm, so that it can provide flexible restraint and support for the patient's upper arm, and at the same time can be locked when the patient resists violently, thereby enhancing the local restraint strength, forming a stable restraint, and effectively preventing self-harming behavior. The specific contents are as follows:

[0017] 1. An air storage bag, a first magnet and a second magnet are provided. When the patient's arm is restrained, when the arc-shaped limiter drives the slider to slide along the slot as the patient's arm moves, the slider squeezes the air storage bag to form an elastic buffer space, allowing the patient's arm to move slightly within a limited range, thereby avoiding the oppressive feeling of traditional rigid constraints and relieving muscle stiffness through flexible support. At the same time, when the air storage bag is compressed, the first magnet and the second magnet approach each other due to the displacement of the slider, and the repulsive force of the same magnetic poles is used to generate a progressive reaction force, thereby further enhancing the constraint stability.

[0018] 2. A pressure plate, a toggle block and a column are provided. By pressing the toggle block, the toggle block squeezes the first spring to contract and drives the pressure plate to move. The pressure plate will slide along the guide groove through the column, thereby separating from the limit groove and releasing the limit with the bracket. The position of the forearm support can be adjusted to meet the needs of patients of different body shapes.

[0019] 3. A grip-and-compression airbag is provided. When restraining the patient, the contact piece and the extrusion piece cooperate with each other to fix the restraining wrist strap. When the patient resists violently, he will unconsciously clench his fist. At this time, the grip-and-compression airbag will transport the gas stored inside it to the air cavity, and then enter the hollow layer and cavity between the rubber layer and the rotating roller through the air cavity. The rubber layer expands and pushes the extrusion piece to apply progressive pressure to the restraining wrist strap, thereby effectively preventing the forearm support from accidentally falling off.

[0020] 4. A movable rod and an arc plate are provided. When the gas in the air cavity enters the cavity through the hose, the gas will push the movable rod to move, and the movable rod will drive the L-shaped part to move through the arc plate, so that the L-shaped part drives the traction plate to rotate. The traction plate pulls the limiting ring to fit the outer surface of the limiting disk when rotating, thereby increasing the friction and improving the stability of the restraint device. At the same time, the push block will push the deflection plate to rotate, and the brake column on the deflection plate is inserted into the slot to limit the bracket to prevent the bracket from unexpected axial rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the shaft side structure of the present invention;

[0023] Figure 3 For the present invention Figure 2 Schematic diagram of the large structure of the prescription in A;

[0024] Figure 4 This is a schematic diagram of the main cross-sectional structure of the forearm support of the present invention;

[0025] Figure 5 For the present inventionFigure 4 Schematic diagram of the large structure of the Chinese B prescription;

[0026] Figure 6 It is a schematic diagram of the main cross-sectional structure of the rotating roller of the present invention;

[0027] Figure 7 It is a schematic diagram of the internal structure of the housing of the present invention;

[0028] Figure 8 For the present invention Figure 7 Schematic diagram of the large structure of the Chinese C prescription;

[0029] Figure 9 It is a schematic diagram of the main cross-sectional structure of the moving part of the present invention;

[0030] Figure 10 This is a schematic diagram of the main cross-sectional structure of the shell of the present invention;

[0031] Figure 11 For the present invention Figure 10 Schematic diagram of the large structure of the Chinese D prescription;

[0032] Figure 12 It is a schematic diagram of the overall structure of the bracket of the present invention;

[0033] Figure 13 It is a schematic diagram of the main cross-sectional structure of the deflection plate of the present invention;

[0034] Figure 14 For the present invention Figure 13 Schematic diagram of the overall structure of prescription a.

[0035] In the figure: 1, upper arm bracket; 2, first accommodating groove; 3, first connecting bracket; 4, fixing member; 5, shell; 6, constraint assembly; 601, rotating shaft; 602, limiting plate; 603, limiting toothed plate; 604, moving member; 605, slot; 606, air storage bag; 607, first magnet; 608, slider; 609, second magnet; 610, arc-shaped limiting member; 611, pulling block; 612, auxiliary spring; 7, bracket; 701, limiting groove; 8, forearm bracket; 801, air cavity; 802, rectangular groove; 803, guide groove; 9, second accommodating groove; 10. Second connecting bracket; 11. Contact member; 12. Extrusion member; 13. Rotating roller; 1301. Air flow channel; 14. Rubber layer; 15. Telescopic rod; 16. Grip airbag; 17. Locking member; 1701. Pressure plate; 1702. Toggle block; 1703. Column; 1704. First spring; 18. Cavity; 19. Movable rod; 20. Arc plate; 21. Slide groove; 22. L-shaped member; 23. Pulling piece; 24. Push block; 25. Connecting shaft; 26. Deflection plate; 27. Brake column; 28. Slot; 29. ​​Second spring; 30. Limiting ring. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1: Please refer to Figures 1-14 As shown, the present invention provides a technical solution: a medical care upper arm restraint device, including: an upper arm bracket 1 and a forearm bracket 8.

[0038] With the settings of the upper arm bracket 1 and the forearm bracket 8 in this technical solution, during use, medical staff first place the upper arm bracket 1 and the forearm bracket 8 on the corresponding limb parts of the patient respectively, and through the cooperation of the fixing member 4, the housing 5 and the bracket 7, the restraint of the patient is realized.

[0039] Embodiment 2: The technical content disclosed in this embodiment is an improvement based on the above Embodiment 1. When existing patients have stress in a restrained state, they usually involuntarily clench their fists. This behavior may increase the risk of skin damage, muscle and nerve fatigue, and further enhance the patient's anxiety and uneasiness. When using a racket-type restraint glove, some agitated patients will forcibly turn their palms inside the restraint glove, and the restraint reliability is low. This technical solution is as Figures 1-3 and Figure 6As shown, a restraint binding component is disclosed. On the upper arm bracket 1 provided, two first accommodation grooves 2 are symmetrically opened. In both of the two first accommodation grooves 2, a first connection bracket 3 is rotatably installed. A fixing member 4 is fixedly connected to the upper arm bracket 1. One end of the fixing member 4 away from the upper arm bracket 1 is fixedly connected to a housing 5. A restraint component 6 is arranged in the housing 5. The restraint component 6 includes a rotating shaft 601 rotatably arranged in the housing 5. A restricting disc 602 is fixedly connected to the rotating shaft 601. A restricting gear disc 603 is fixedly nested and connected to the outer wall of the rotating shaft 601 on the side of the restricting disc 602. One end of the rotating shaft 601 penetrates and extends out of the housing 5. A bracket 7 is fixedly connected to the extending end of the rotating shaft 601. A forearm bracket 8 is sleeved on the outer side of the end of the bracket 7 away from the housing 5. Two second accommodation grooves 9 are symmetrically opened on the forearm bracket 8. In both of the two second accommodation grooves 9, a second connection bracket 10 is rotatably installed. Contact members 11 are fixedly connected to the side walls of the opposite sides of the first connection bracket 3 and the second connection bracket 10. Pressing members 12 are movably connected to the first connection bracket 3 and the second connection bracket 10 on the sides of the contact members 11. A rotating roller 13 is rotatably installed on the second connection bracket 10. A rubber layer 14 is fixedly connected to the outer side of the rotating roller 13. An air cavity 801 is opened on the forearm bracket 8. A telescopic rod 15 is movably connected to the outer wall of the forearm bracket 8 above the air cavity 801. One end of the telescopic rod 15 away from the forearm bracket 8 is fixedly connected to a grip pressure airbag 16. The restraint component 6 further includes a moving member 604. The moving member 604 is arranged in the housing 5. A slot 605 is opened on the moving member 604. An air storage bag 606 is arranged in the slot 605. A first magnet 607 is fixedly nested and connected to the outer side of the air storage bag 606. One end of the air storage bag 606 away from the first magnet 607 is fixedly connected to a slider 608. A second magnet 609 is fixedly connected to the slider 608. An arc-shaped limiting member 610 is fixedly connected to the side wall of the slider 608. One end of the moving member 604 away from the slot 605 penetrates and extends out of the housing 5. A pulling block 611 is fixedly connected to the extending end of the moving member 604. Two air storage bags 606, first magnets 607 and second magnets 609 are symmetrically arranged with respect to the slider 608. The first magnet 607 corresponds to the second magnet 609. And the opposite surfaces of the first magnet 607 and the second magnet 609 are like-named magnetic poles. The slider 608 is slidably connected to the slot 605. The arc-shaped limiting member 610 on the side of the slider 608 is aligned with the restricting gear disc 603. And teeth matching the restricting gear disc 603 are opened on the arc-shaped limiting member 610. A hollow structure is arranged between the rubber layer 14 and the rotating roller 13. And an air flow channel 1301 is arranged on the rotating roller 13. The hollow layer between the rubber layer 14 and the rotating roller 13 is communicated with the air cavity 801 through the air flow channel 1301. The telescopic rod 15 is of a hollow structure. And the grip pressure airbag 16 is communicated with the air cavity 801 through the telescopic rod 15.

[0040] In this technical solution, such as Figure 6As shown, by setting the rotating roller 13 and the rubber layer 14, when the gas enters the hollow layer between the rotating roller 13 and the rubber layer 14 from the air flow channel 1301, the rubber layer 14 will expand, thereby squeezing the squeezing member 12 to make it closely contact the contact member 11, effectively preventing the restraint strap from loosening, shifting or slipping during the patient's movement, ensuring that the restraint effect is lasting and reliable, and the expanded rubber layer 14 will fit the patient's skin. At the same time, the rotating roller 13 is rotatably connected to the second connecting bracket 10, avoiding frictional damage to the restraint part caused by the rigidity obstruction of the device.

[0041] It adopts the technical solution as Figures 1-3 shown. First, the upper arm bracket 1 is fitted to the patient's upper arm. Further, the restraint strap is wound around the outside of the patient's arm and passed through the gap between the contact member 11 and the squeezing member 12. Since both the squeezing member 12 and the contact member 11 are arranged in an arc structure, and meshing teeth are provided on the opposite sides of the squeezing member 12 and the contact member 11, and the squeezing member 12 is elastically connected to the first connecting bracket 3, the restraint strap can be prevented from slipping and shifting. The same is true when installing the forearm bracket 8. Moreover, when the patient is in an excited state, the patient will constantly swing the forearm and clench the fist, so that the five fingers of the patient are respectively inserted into the five finger sleeves preset on the grip pressure airbag 16. At this time, by presetting the grip pressure airbag 16 in the patient's hand, when the patient unconsciously clenches, the grip pressure airbag 16 will be squeezed, and the gas in the grip pressure airbag 16 will be transported through the hollow telescopic rod 15 to the air cavity 801, and then enter the hollow layer between the rotating roller 13 and the rubber layer 14 from the air cavity 801, so that the rubber layer 14 expands, and then squeezes the squeezing member 12 on the second connecting bracket 10, making the squeezing member 12 closely contact the contact member 11, further enhancing the fixing effect on the patient's forearm and preventing the patient from breaking free from the restraint due to excited struggling;

[0042] At the same time, when the patient reacts violently and the grip pressure airbag 16 cannot be put into the patient's hand, after fixing the upper arm bracket 1 and the forearm bracket 8 to the patient's limb, the air cavity 801 is inflated through the air inlet preset on the side of the forearm bracket 8 to achieve secondary fixation.

[0043] Embodiment 3: The technical content disclosed in this embodiment is a further improvement based on the above Embodiment 1 and Embodiment 2. When, in order to further solve this technical problem, the technical solution is as Figure 4 、 Figure 5 and Figures 7-14As shown, an adjustment assembly of a restraint device is disclosed. The sliding block 611 provided therein is slidably connected to the fixing member 4, and an auxiliary spring 612 is fixedly connected to the side wall of the sliding block 611. One end of the auxiliary spring 612 away from the sliding block 611 is fixedly connected to the fixing member 4. The bracket 7 is slidably connected to the forearm bracket 8, and a limiting groove 701 is formed in the bracket 7. Two rectangular grooves 802 are symmetrically formed in the forearm bracket 8. Two guide grooves 803 are symmetrically formed on the inner side walls of the two rectangular grooves 802. A locking member 17 matching the limiting groove 701 is provided in each of the two rectangular grooves 802. The locking member 17 includes a pressing plate 1701. A convex block matching the limiting groove 701 is provided on the surface of the pressing plate 1701 close to the bracket 7. A toggle block 1702 is movably connected to a section away from the convex block of the pressing plate 1701. A cylinder 1703 is fixedly connected to the side wall of the pressing plate 1701. The pressing plate 1701 is slidably connected to the toggle block 1702. Two cylinders 1703 on the pressing plate 1701 are symmetrically arranged. One end of each of the two pressing plates 1701 facing away from each other extends into the guide groove 803 and is slidably connected to the guide groove 803. The toggle block 1702 is slidably arranged in the rectangular groove 802. A first spring 1704 is fixedly connected to the outer wall of the toggle block 1702. The first spring 1704 is located in the rectangular groove 802. One end of the first spring 1704 away from the toggle block 1702 is fixedly connected to the inner wall of the rectangular groove 802. A cavity 18 is formed in the bracket 7. The cavity 18 is communicated with the air cavity 801 through a hose. A movable rod 19 is slidably connected in the cavity 18. One end of the movable rod 19 penetrates through the bracket 7. The extending end of the movable rod 19 is fixedly connected to an arc-shaped plate 20. The arc-shaped plate 20 is arranged in the housing 5. A chute 21 is formed in the arc-shaped plate 20. An L-shaped member 22 is slidably connected in the chute 21. One end of the L-shaped member 22 away from the chute 21 is rotatably connected to a traction piece 23. A push block 24 is fixedly connected to the outer wall of the traction piece 23. A connecting shaft 25 is rotatably connected to the side wall of the traction piece 23. A limiting ring 30 is rotatably connected to the traction piece 23. One end of the connecting shaft 25 away from the traction piece 23 is fixedly connected to the inner wall of the housing 5. A deflecting plate 26 is rotatably connected to the bottom end of the connecting shaft 25. One end of the deflecting plate 26 close to the limiting disc 602 is movably connected to a braking column 27. One end of the deflecting plate 26 close to the traction piece 23 is in contact with the push block 24. The deflecting plate 26 is pushed to deflect along the axis point by the push block 24, and the braking column 27 is pushed to be in contact with the limiting disc 602. A card slot 28 matching the braking column 27 is formed in the limiting disc 602. Both the braking column 27 and the card slot 28 are arranged in an array. A second spring 29 is connected between the braking column 27 and the traction piece 23. The braking column 27 and the traction piece 23 form an elastic telescopic structure through the second spring 29. One end of the limiting ring 30 away from the traction piece 23 is fixedly connected to the housing 5. A torsion spring providing a reset elastic force is connected between the limiting ring 30 and the traction piece 23. The limiting ring 30 can be in contact with the limiting disc 602 for limitation.

[0044] In this technical solution, Figure 14 As shown, by using the setting of the push block 24 and the deflection plate 26, when the traction plate 23 rotates, the push block 24 will be driven to squeeze the deflection plate 26, so that the deflection plate 26 drives the brake column 27 to insert into the slot 28, thereby preventing the bracket 7 and the forearm support 8 from deflecting significantly, thereby preventing the patient from breaking free from the restraint, providing more reliable nursing support for medical staff, and reducing the medical risks caused by large-scale limb movements of the patient.

[0045] Its use is as Figure 4 , Figure 5 and Figures 7-13 The technical solution shown in the figure is that the toggle block 1702 is first pressed manually, so that the toggle block 1702 squeezes the first spring 1704 to contract and drives the pressing plate 1701 to move. The pressing plate 1701 drives the column 1703 to slide along the guide groove 803, thereby separating from the limiting groove 701 on the bracket 7. At this time, the forearm support 8 can be pulled out for adjustment, so that it can adapt to the arm sizes of different patients, ensure the restraint effect, and improve the comfort of the patient. After the adjustment is completed, the toggle block 1702 is released, so that the toggle block 1702 is reset under the elastic force of the first spring 1704.

[0046] When the restraint is completed, the patient drives the bracket 7 to rotate when swinging the forearm, the bracket 7 drives the rotating shaft 601 to rotate, and the rotating shaft 601 drives the limiting toothed disc 603 to rotate. Since the limiting toothed disc 603 is meshed with the arc-shaped limiting member 610, the arc-shaped limiting member 610 drives the pulling block 611 to slide up and down along the slot 605. At this time, it is supported by the expanded air storage bag 606, and when the air storage bag 606 is squeezed and moved closer to each other, the first magnet 607 gradually moves closer to the second magnet 609, thereby further enhancing the stability of the restraint system through repulsion.

[0047] When adjusting the angle of the upper arm bracket 1, by pulling the pull block 611, the pull block 611 squeezes the auxiliary spring 612 to contract, and at the same time drives the moving member 604 and the arc-shaped limiter 610 to separate. At this time, the arc-shaped limiter 610 separates from the limiting toothed disc 603, and the limit on the rotating shaft 601 is released. The angle can be adjusted by rotating the bracket 7. After the adjustment is completed, the pull block 611 is released to reset under the elastic force of the auxiliary spring 612.

[0048] Further, when the gas in the squeezed airbag 16 enters the air chamber 801, a part of the gas will enter the cavity 18 through the hose, thereby pushing the movable rod 19 to move. The movable rod 19 will drive the arc-shaped plate 20 to move, so that the arc-shaped plate 20 drives the traction piece 23 to rotate around the connecting shaft 25 as the center point through the L-shaped part 22. Immediately afterwards, the traction piece 23 will pull the limiting ring 30 to rotate, so that the limiting ring 30 fits with the limiting disc 602. Since the limiting disc 602 is arranged in a convex circular structure, the friction between the limiting disc 602 and the limiting ring 30 is increased, which can more effectively prevent the random rotation of the patient's forearm. At the same time, the traction piece 23 will drive the push block 24 to move, so that the push block 24 squeezes the deflection plate 26, and the deflection plate 26 will drive the brake post 27 to move, so that the brake post 27 fits with the limiting disc 602. When the brake post 27 is not aligned with the card slot 28, the brake post 27 will squeeze the second spring 29 and thus retract into the deflection plate 26. As the limiting disc 602 rotates, after the card slot 28 is aligned with the brake post 27, the brake post 27 extends into the card slot 28 under the elastic force of the second spring 29 to limit the limiting disc 602, thereby preventing the bracket 7 from rotating greatly.

[0049] The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An upper arm restraint device for medical care, characterized in that: include: An upper arm bracket (1), wherein two first accommodating grooves (2) are symmetrically provided on the upper arm bracket (1), and first connecting brackets (3) are rotatably installed in the two first accommodating grooves (2), and a fixing member (4) is fixedly connected to the upper arm bracket (1), and the fixing member (4) is fixedly connected to a shell (5) at one end away from the upper arm bracket (1), and a restraining assembly (6) is arranged in the shell (5), and the restraining assembly (6) includes a rotating shaft (601) rotatably arranged in the shell (5), and a limiting disk (602) is fixedly connected to the rotating shaft (601), and a limiting toothed disk (603) is fixedly nested and connected to the outer wall of the rotating shaft (601) on the side of the limiting disk (602), and one end of the rotating shaft (601) extends through the shell (5), and the protruding end of the rotating shaft (601) is fixedly connected to a bracket (7), and the outer side of the end of the bracket (7) away from the shell (5) is sleeved with A forearm bracket (8), wherein two second accommodating grooves (9) are symmetrically provided on the forearm bracket (8), and second connecting brackets (10) are rotatably installed in the two second accommodating grooves (9), and contact pieces (11) are fixedly connected on the side walls of the first connecting bracket (3) and the second connecting bracket (10) on the opposite side, and extrusion pieces (12) are movably connected on the first connecting bracket (3) and the second connecting bracket (10) on the side of the contact piece (11), and a rotating roller (13) is rotatably installed on the second connecting bracket (10), and a rubber layer (14) is fixedly connected to the outer side of the rotating roller (13), and an air cavity (801) is provided on the forearm bracket (8), and a telescopic rod (15) is movably connected to the outer wall of the forearm bracket (8) above the air cavity (801), and a gripping airbag (16) is fixedly connected to the end of the telescopic rod (15) away from the forearm bracket (8).

2. The upper arm restraint device for medical care according to claim 1, characterized in that: The restraining assembly (6) also includes a moving part (604), the moving part (604) is arranged in the shell (5), and a slot (605) is provided on the moving part (604), an air storage bag (606) is arranged in the slot (605), a first magnet (607) is fixedly nested and connected to the outside of the air storage bag (606), an end of the air storage bag (606) away from the first magnet (607) is fixedly connected to a slider (608), a second magnet (609) is fixedly connected to the slider (608), and an arc-shaped limiter (610) is fixedly connected to the side wall of the slider (608), an end of the moving part (604) away from the slot (605) penetrates and extends out of the shell (5), and the extended end of the moving part (604) is fixedly connected to a pull block (611).

3. The upper arm restraint device for medical care according to claim 2, characterized in that: The air storage bag (606), the first magnet (607) and the second magnet (609) are all symmetrically arranged with two of them about the slider (608), and the first magnet (607) corresponds to the second magnet (609), and the opposite sides of the first magnet (607) and the second magnet (609) are poles of the same name, the slider (608) is slidably connected to the slot (605), the arc-shaped limiter (610) on the side of the slider (608) is aligned with the limiting toothed disc (603), and a tooth block matching the limiting toothed disc (603) is provided on the arc-shaped limiter (610).

4. The upper arm restraint device for medical care according to claim 3, characterized in that: The pulling block (611) is slidably connected to the fixing member (4), and an auxiliary spring (612) is fixedly connected to the side wall of the pulling block (611), and one end of the auxiliary spring (612) away from the pulling block (611) is fixedly connected to the fixing member (4).

5. The upper arm restraint device for medical care according to claim 1, characterized in that: The bracket (7) is slidably connected to the forearm support (8), and a limit groove (701) is provided on the bracket (7), and two rectangular grooves (802) are symmetrically provided on the forearm support (8), and two guide grooves (803) are symmetrically provided on the inner side walls of the two rectangular grooves (802), and locking members (17) matching the limit grooves (701) are provided in the two rectangular grooves (802).

6. The upper arm restraint device for medical care according to claim 5, characterized in that: The locking member (17) comprises a pressure plate (1701), a protrusion matching the limiting groove (701) is arranged on a side of the pressure plate (1701) close to the bracket (7), a toggle block (1702) is movably connected to a section of the pressure plate (1701) away from the protrusion, and a column (1703) is fixedly connected to the side wall of the pressure plate (1701).

7. The upper arm restraint device for medical care according to claim 6, characterized in that: The pressure plate (1701) is slidably connected to the toggle block (1702), and two columns (1703) are symmetrically arranged on the pressure plate (1701), and the ends of the two pressure plates (1701) that are away from each other are both extended into the guide groove (803) and are slidably connected to the guide groove (803). The toggle block (1702) is slidably arranged in the rectangular groove (802), and the outer wall of the toggle block (1702) is fixedly connected with a first spring (1704), the first spring (1704) is located in the rectangular groove (802), and the end of the first spring (1704) away from the toggle block (1702) is fixedly connected to the inner wall of the rectangular groove (802).

8. The upper arm restraint device for medical care according to claim 7, characterized in that: The bracket (7) is provided with a cavity (18), the cavity (18) is connected to the air cavity (801) through a hose, and a movable rod (19) is slidably connected in the cavity (18), one end of the movable rod (19) passes through the bracket (7), and the extended end of the movable rod (19) is fixedly connected to an arc plate (20), the arc plate (20) is arranged in the shell (5), and a sliding groove (21) is provided on the arc plate (20), an L-shaped member (22) is slidably connected in the sliding groove (21), and the L-shaped member (22) is away from the sliding groove ( One end of the traction plate (21) is rotatably connected to the traction plate (23), the outer wall of the traction plate (23) is fixedly connected to a push block (24), and the side wall of the traction plate (23) is rotatably connected to a connecting shaft (25), and the traction plate (23) is rotatably connected to a limiting ring (30), the end of the connecting shaft (25) away from the traction plate (23) is fixedly connected to the inner wall of the shell (5), and the bottom end of the connecting shaft (25) is rotatably connected to a deflection plate (26), and the end of the deflection plate (26) close to the limiting disk (602) is movably connected to a brake column (27).

9. The upper arm restraint device for medical care according to claim 8, characterized in that: The end of the deflection plate (26) close to the traction plate (23) is fitted with the push block (24), and the deflection plate (26) is pushed by the push block (24) to deflect along the axis point, so as to push the brake column (27) to fit with the limiting disk (602). The limiting disk (602) is provided with a slot (28) matching the brake column (27), and the brake column (27) and the slot (28) are arranged in an array in plurality. A second spring (29) is connected between the brake column (27) and the traction plate (23), and the brake column (27) and the traction plate (23) form an elastic expansion and contraction result through the second spring (29). The end of the limiting ring (30) away from the traction plate (23) is fixedly connected to the shell (5), and a torsion spring providing a reset elastic force is connected between the limiting ring (30) and the traction plate (23), and the limiting ring (30) can fit with the limiting disk (602) to perform restriction.

10. The upper arm restraint device for medical care according to claim 1, characterized in that: A hollow structure is provided between the rubber layer (14) and the rotating roller (13), and an air flow channel (1301) is provided on the rotating roller (13); the hollow layer between the rubber layer (14) and the rotating roller (13) is connected to the air cavity (801) via the air flow channel (1301); the telescopic rod (15) is a hollow structure, and the gripping airbag (16) is connected to the air cavity (801) via the telescopic rod (15).

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