Pneumatic rehabilitation restraint equipment and restraint method thereof

Abstract

The invention relates to the technical field of rehabilitation equipment, and discloses pneumatic rehabilitation restraint equipment and a restraint method thereof.The pneumatic rehabilitation restraint equipment comprises a palm restraint used for restraining movement of a palm and fingers through pneumatic drive; the forearm constraint is used for fixing a forearm; the upper arm constraint is used for fixing an upper arm; the wrist joint is used for movably connecting the palm restraint and the forearm restraint and pneumatically driving and adjusting the relative angle between the forearm restraint and the palm restraint; and the elbow joint is used for movably connecting the front arm restraint and the upper arm restraint and pneumatically driving and adjusting the relative angle between the front arm restraint and the upper arm restraint. Multi-posture rehabilitation constraint is achieved through flexible constraint, the constraint posture can be flexibly adjusted, the rehabilitation constraint effect is improved, the use comfort of a patient is improved, and the rehabilitation effect is further improved by inflating and deflating air blocks arranged on the equipment to massage fingers, palms and arms.

Description

Technical Field

[0001] The present invention relates to the technical field of rehabilitation equipment, and particularly to a pneumatic rehabilitation restraint device and a restraint method thereof. Background Art

[0002] Restraint refers to using physical or mechanical devices, materials or tools attached to a patient's body part, making it not easily removable, restricting the patient's free movement or preventing the patient from normally approaching their own body, thus causing harm to the injured part. Protective restraint used clinically is a mandatory nursing operation, aiming to prevent medical interference, prevent self-harm of patients with impaired consciousness, protect restless patients, prevent them from bruising or scratching themselves or others, and prevent accidents such as falling out of bed and extubation. Physical restraint often involves multiple aspects such as the patient's physiology, psychology, ethics, and law. Improper physical restraint may lead to skin damage, impaired peripheral circulation of the limbs, pressure sores, muscle atrophy, infection, decline in cognitive function, decline in physical function, accidental extubation and other improper results. Therefore, for the restraint needs of patients, corresponding restraint measures should be taken in a targeted, simple and effective manner.

[0003] Restraint belts are commonly used restraint tools in clinical practice, and their types include: ① wide bandage restraint belts, ② shoulder restraint belts, ③ knee restraint belts, ④ nylon fastener restraint belts, etc. However, these restraints all have the disadvantages of inconvenient operation and being rigid restraints. The current use of restraint belts has relatively high requirements for nursing staff, and their restraint effects vary depending on whether the operation of the user is correct. Secondly, rigid restraint is not suitable for the restraint needs in various situations. If the restraint method is incorrect, the rehabilitation treatment effect cannot be achieved, and even the physical and mental health of the patient will be affected.

[0004] The existing Chinese patent with the publication number CN119055428A provides an intelligent rehabilitation restraint device and a restraint method. In this intelligent rehabilitation restraint device, the upper arm restraint and the lower arm restraint are respectively hinged to the front and rear ends of the elbow joint restraint; the upper arm restraint is used to fix the upper arm of the human arm close to the shoulder joint, the lower arm restraint is used to fix the lower arm of the human arm close to the wrist, and the elbow joint restraint is used to fix the elbow joint where the upper arm and the lower arm are connected. Starting from the clinical restraint needs, centering around the restraint effect and the nursing needs of medical staff, from the perspective of ergonomics and supported by automation and intelligent sensing technologies, this technology proposes an intelligent rehabilitation restraint device and a restraint method to achieve restraint rehabilitation with intelligent control and perception based on the Internet of Things technology.

[0005] However, this technology lacks restraint on the wrist, palm and each finger. At the same time, the connection structure of the elbow joint is too complex and heavy, resulting in a relatively heavy weight of the overall arm. During implementation, due to the heavy weight, the patient cannot freely rotate the elbow joint, causing inconvenience in movement and low acceptance by the patient. Summary of the Invention

[0006] In order to overcome or alleviate one or more of the above technical problems, the object of the present invention is to provide a pneumatic rehabilitation restraint device and its restraint method. According to the different restraint requirements of the patient's wrist, palm and each finger, different restraint postures can be simply and appropriately adopted to correctly restrain or rehabilitate the patient. At the same time, it has flexibility, good patient acceptance, and achieves better restraint or rehabilitation treatment purposes.

[0007] The present invention provides the following technical solutions:

[0008] The present invention provides a pneumatic rehabilitation restraint device, which includes: a palm restraint for pneumatically driving to restrain the activities of both the palm and fingers; a forearm restraint for fixing the forearm; an upper arm restraint for fixing the upper arm; a wrist joint for movably connecting the palm restraint and the forearm restraint, and pneumatically driving to adjust the relative angle between the forearm restraint and the palm restraint; an elbow joint for movably connecting the forearm restraint and the upper arm restraint, and pneumatically driving to adjust the relative angle between the forearm restraint and the upper arm restraint.

[0009] According to some embodiments, the palm restraint, the wrist joint, and the elbow joint are all made of flexible materials to form a hollow structure. The outer wall of the five fingers of the palm restraint facing outward is serrated; both the wrist joint and the elbow joint are arc-shaped hollow and facing outward, and the outer wall of the arc facing outward is serrated.

[0010] According to some embodiments, a finger fixation is provided at the end of the movable finger of the palm restraint. An interconnected air cavity is provided in the palm restraint, an air port is provided at the edge of the air cavity, the palm root of the palm restraint is hinged to the front end of the forearm restraint, and the air port is externally connected to a pneumatic driving device.

[0011] According to some embodiments, a limiting member is provided at the hinge joint between the palm root of the palm restraint and the front end of the forearm restraint.

[0012] In the above embodiments, the limiting member is used to limit the hinge angle to avoid excessive angle and causing damage to the wrist.

[0013] According to some embodiments, one end of the wrist joint is provided with a wrist joint air port for air charging and discharging; one end of the elbow joint is also provided with an elbow joint air port for air charging and discharging. The wrist joint air port and the elbow joint air port are externally connected to a pneumatic driving device; the forearm restraint includes an adjustable forearm fixing member, and the upper arm restraint includes an adjustable upper arm fixing member; the rear end of the forearm restraint is hinged to the front end of the upper arm restraint.

[0014] According to some embodiments, a limiting member is provided at the hinge joint between the forearm restraint and the upper arm restraint.

[0015] According to some embodiments, on any surface or any combination of surfaces where the palm restraint fits the surface of the hand, the forearm restraint fits the surface of the forearm, and the upper arm restraint fits the surface of the upper arm, a plurality of massage air blocks are arranged in an array. By inflating and deflating the massage air ports connected to the massage air blocks, massage of the corresponding parts is achieved.

[0016] According to some embodiments, the forced restraint fixing member is provided on the back of the forearm restraint and / or the back of the upper arm restraint for fixing the forearm and / or the upper arm to the outside through the strap.

[0017] On the other hand, the present invention provides a restraint method for the above pneumatic rehabilitation restraint equipment, which includes the following steps:

[0018] 1) Adjust the initial posture of the pneumatic rehabilitation restraint equipment to the posture when not worn by the patient;

[0019] 2) Place the pneumatic rehabilitation restraint equipment on the arm part of the patient that needs to be restrained;

[0020] 3) Through the forearm restraint and the upper arm restraint, make the upper arm, forearm and palm of the patient closely fit and fix with the corresponding pneumatic rehabilitation restraint equipment;

[0021] 4) According to the target restraint posture, inflate and deflate the air ports of the palm restraint, the wrist joint and the elbow joint of the pneumatic rehabilitation restraint equipment respectively to drive it to reach the corresponding restraint posture;

[0022] 5) After reaching the restraint posture, if the patient has slight discomfort, improve the comfort of the restraint posture by fine-tuning the air inflow and outflow volume of the corresponding part;

[0023] 6) Complete the restraint.

[0024] According to some embodiments, on any surface or any combination of surfaces where the palm restraint fits the surface of the hand, the forearm restraint fits the surface of the forearm, and the upper arm restraint fits the surface of the upper arm, a plurality of massage air blocks are arranged in an array. After the restraint is completed, if there is a massage need, massage of the corresponding part is performed by inflating and deflating the massage air ports connected to the corresponding massage air blocks.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The pneumatic rehabilitation restraint equipment provided by the present invention breaks through the disadvantages of traditional rigid restraints. It adopts flexible restraint driven by air pressure, and realizes multi-posture rehabilitation restraint by changing the air pressure in the air chambers of each part, improves the effect of rehabilitation restraint, and enhances the comfort of patients during use. In addition, multiple small air chambers are arranged on the restraint surface, and they can be inflated one by one through inflation and deflation to achieve the massage effect on fingers, palms, upper and lower arms, realize multi-posture rehabilitation restraint, and perform comfortable and correct rehabilitation restraint on patients with different needs, thereby improving the rehabilitation effect.

[0027] The restraint method of the pneumatic rehabilitation restraint equipment provided by the present invention is to apply different rehabilitation restraints to patients with different needs by using the pneumatic rehabilitation restraint equipment, so as to achieve the purpose of rehabilitation, improve the restraint effect, reduce the difficulty of restraint operation, and improve the patient's restraint experience. In addition, massage rehabilitation treatment for fingers, wrist joints, elbow joints and related muscle groups can be realized by inflating and deflating the air chambers in the palm restraint, wrist joint and elbow joint respectively, and the operation is simple and effective. Description of the Drawings

[0028] Figure 1 It is an overall schematic diagram with the palm facing down of the pneumatic rehabilitation restraint equipment provided by an embodiment of the present invention.

[0029] Figure 2 It is an overall schematic diagram with the palm facing up of the pneumatic rehabilitation restraint equipment provided by an embodiment of the present invention.

[0030] Figure 3 It is a schematic diagram of the palm restraint with the palm facing down provided by an embodiment of the present invention.

[0031] Figure 4 It is a schematic diagram of the palm restraint with the palm facing up provided by an embodiment of the present invention.

[0032] Figure 5 It is a cross-sectional view of the palm restraint provided by an embodiment of the present invention.

[0033] Figure 6 It is a longitudinal-sectional view of the palm restraint provided by an embodiment of the present invention.

[0034] Figure 7 It is a schematic diagram of the finger bending of the palm restraint provided by an embodiment of the present invention.

[0035] Figure 8 It is a schematic diagram of the structure of the pneumatic rehabilitation restraint equipment with the palm facing down provided by an embodiment of the present invention.

[0036] Figure 9 It is a schematic diagram of the structure of the pneumatic rehabilitation restraint equipment with the palm facing up provided by an embodiment of the present invention.

[0037] Figure 10A longitudinal sectional view of the wrist joint provided by an embodiment of the present invention.

[0038] Figure 11 A side view of the pneumatic rehabilitation restraint equipment provided by an embodiment of the present invention in a straight-line posture.

[0039] Figure 12 A side view of the elbow joint and wrist joint of the pneumatic rehabilitation restraint equipment provided by an embodiment of the present invention in a bent posture.

[0040] Figure 13 An axonometric view of the elbow joint and wrist joint of the pneumatic rehabilitation restraint equipment provided by an embodiment of the present invention in a bent posture.

[0041] Figure 14 A schematic diagram of the finger restraint in a bent posture provided by an embodiment of the present invention.

[0042] In the figure:

[0043] 1. Palm restraint; 1-1. Finger air inlet; 1-2. Connecting handle; 1-3. Movable finger; 1-4. Air cavity; 1-5. Finger fixation; 1-6. Palm massage air block; 1-7. Massage air inlet.

[0044] 2. Forearm restraint; 2-1. Wrist joint air inlet; 2-2. Wrist joint connection; 2-3. Forearm forced restraint fixing part; 2-4. Forearm massage air inlet; 2-5. Forearm massage air block.

[0045] 3. Upper arm restraint; 3-1. Elbow joint air inlet; 3-2. Elbow joint connection; 3-3. Upper arm forced restraint fixing part; 3-4. Upper arm massage air inlet; 3-5. Upper arm massage air block.

[0046] 4. Wrist joint; 4-1. Wrist joint air inlet; 4-2. Wrist joint air cavity.

[0047] 5. Elbow joint; 6. Forearm fixing part; 7. Upper arm fixing part. Detailed implementation manners

[0048] The present invention will be described in detail below in conjunction with the embodiments and the drawings. However, it should be understood that the embodiments and the drawings are only used for an exemplary description of the present invention, and do not constitute any limitation to the protection scope of the present invention. All reasonable transformations and combinations within the scope of the inventive concept of the present invention fall within the protection scope of the present invention.

[0049] The present invention will be further described below in conjunction with the drawings.

[0050] Embodiment 1

[0051] As Figures 1-2, this embodiment provides a pneumatic rehabilitation restraint device. In this restraint device, the palm restraint 1 is used to fix the palm, the forearm restraint 2 is used to fix the forearm, the upper arm restraint 3 is used to fix the upper arm, the wrist joint 4 is used to drive the relative angular movement of the palm restraint 1 and the forearm restraint 2, the elbow joint 5 is used to drive the relative angular movement of the forearm restraint 2 and the upper arm restraint 3, the forearm fixing member 6 is annular and is used to fix the forearm, and the upper arm fixing member 7 is annular and is used to fix the upper arm.

[0052] As Figures 3-4 and Figure 7 , the palm restraint 1 includes a finger air port 1-1, a connecting handle 1-2, movable fingers 1-3, an air cavity 1-4, finger fixation 1-5, palm massage air blocks 1-6, and a massage air port 1-7. The finger air port 1-1 is used to inflate or deflate the air cavity 1-4 to bend the five movable fingers 1-3. The connecting handle 1-2 is used to connect the forearm restraint 2. The finger fixation 1-5 is used to restrain the fingers so that the fingers fit with the palm restraint 1. The massage air port 1-7 is used to inflate the multiple palm massage air blocks 1-6 arranged on the palm, and make them gradually expand to achieve a massage effect.

[0053] As Figure 4 shown, multiple palm massage air blocks 1-6 are distributed on the palm restraint 1, and the palm massage air blocks 1-6 communicate with each other. By inflating and deflating the massage air port 1-7, they expand and contract to achieve the effect of squeezing the palm, thereby simulating the massage of the palm.

[0054] As Figure 5 shown, the palm restraint 1 and the air cavity 1-4 are distributed on the palm and five fingers, and its finger air port 1-1 communicates with the air cavity 1-4.

[0055] As Figure 6 shown, the movable fingers 1-3 of the palm restraint 1 are composed of a serrated thin-wall structure. This structure has a bending characteristic, which is reflected in that when the finger air port 1-1 is inflated, the inside of the movable fingers 1-3 expands, and the expansion length of the serrated side is longer, while the expansion length of the straight side is shorter. Therefore, the whole movable fingers will bend towards the straight side and return to the original state when deflated. The finger fixation 1-5 fixes the fingers, and will restrain the fingers to bend along with the movable fingers 1-3 when the palm restraint 1 bends. As Figure 7 shown, it is a schematic diagram of the bent movable fingers 1-3 of the palm restraint 1 after inflating the finger air port 1-1.

[0056] As Figures 8-9, in the pneumatic restraint, the forearm restraint 2 and the upper arm restraint 3 are arranged with the same air ports. Taking the forearm restraint 2 as an example, it is provided with a wrist joint air port 2-1 and a wrist joint connection 2-2. The wrist joint air port 2-1 is connected to the wrist joint air cavity 4-2. The forearm forced restraint fixing member 2-3 is used to pass through the strap and bundle it with an external fixture so that the forearm is restricted by the external fixture and cannot move freely, meeting the requirements of clinical forced restraint, and is set on the back of the forearm restraint 2; in addition, there are also a forearm massage air port 2-4 and a forearm massage 2-5. Among them, the wrist joint connection 2-2 is used to connect with the connection handle 1-2 of the palm restraint 1. Similarly, the elbow joint connection 3-2 is used to connect with the connection handle of the forearm restraint 2. The forearm massage air port 2-4 is connected to the forearm massage air block 2-5, and the forearm massage air blocks 2-5 are arranged in an array on the inner side of the forearm restraint 2, and are similar to the palm massage air blocks 1-6 and communicate with each other. By inflating and deflating the forearm massage air port 2-4, the expansion and contraction of the forearm massage air blocks 2-5 can be realized, squeezing and relaxing the arm to achieve the massage effect. Similarly, the upper arm massage air port 3-4 is connected to the upper arm massage air blocks 3-5, and the upper arm massage air blocks 3-5 are arranged in an array on the inner side of the upper arm restraint 3, and are similar to the palm massage air blocks 1-6 and communicate with each other. The forearm forced restraint fixing member 2-3 is used to restrain when it is necessary to be forcibly bundled and fixed on the hospital bed or a certain object to completely restrict the movement of the arm. The strap is passed through the forearm forced restraint fixing member 2-3 and bundled and fixed with the fixture. Similarly, one end of the upper arm restraint 3 is also provided with an upper arm forced restraint fixing member 3-3 for passing through the strap to fix the upper arm.

[0057] As Figure 10 shown, the wrist joint 4 includes a wrist joint air port 4-1 and a wrist joint air cavity 4-2. The wrist joint air port 4-1 is communicated with the wrist joint air port 2-1. When inflating the wrist joint air port 2-1, the gas passes through the wrist joint air port 4-1 and fills the wrist joint air cavity 4-2. Its bending principle is the same as that of the movable finger 1-3. The expansion length of the serrated side is longer than that of the arc side. Therefore, after the wrist joint air cavity 4-2 is filled with gas, it bends reversely towards the arc side.

[0058] As Figures 11-12 shown, after the wrist joint 4 and the elbow joint 5 are inflated, they both bend reversely towards the arc side, and drive the relative angular movement of the palm restraint 1 and the forearm restraint 2, and drive the relative angular movement of the forearm restraint 2 and the upper arm restraint 3.

[0059] As Figures 12-13 , the palm restraint 1 and the forearm restraint 2, the forearm restraint 2 and the upper arm restraint 3 are all rigidly connected by connection handles, so that they can rotate around the axis of the connection handle cylinder. The palm restraint 1 can control its bending by inflating the finger air port 1-1 and control the hand to be flat by deflating, as Figure 14, the degree of palm bending can be flexibly adjusted by inflating and deflating the finger air inlet 1-1, which is applicable to various situations. The structures of the wrist joint 4 and the elbow joint 5 are the same, and their operating mechanisms are similar. Taking the wrist joint 4 as an example, the wrist joint 4 can change the bending degree of the wrist joint 4 by inflating and deflating through the wrist joint air inlet 2-1, thereby changing the relative angle between the palm restraint 1 and the forearm restraint 2. Similarly, the bending degree of the elbow joint 5 can be changed by inflating and deflating through the elbow joint air inlet 3-1, thereby changing the relative angle between the forearm and the upper arm. In this embodiment, multi-posture rehabilitation restraint can be achieved by the associated use of various components of the pneumatic equipment.

[0060] The pneumatic rehabilitation restraint equipment provided in this embodiment includes the following characteristics:

[0061] 1) The bending degree of the palm restraint 1 can be controlled by the amount of inflation, realizing palm restraint in different postures.

[0062] 2) The bending degrees of the elbow joint 5 and the wrist joint 4 can be controlled by the amount of inflation, realizing posture restraint at different angles between the forearm and the palm in different postures. Bending angle limits are set at the connecting handle 1-2, the wrist joint connection 2-2, and the elbow joint connection 3-2 to prevent excessive bending angles, which may cause great discomfort to the patient or damage the patient's joints due to excessive bending.

[0063] 3) Forearm massage air blocks 2-5 and upper arm massage air blocks 3-5 are arranged on both the forearm restraint 2 and the upper arm restraint 3. By inflating and deflating through the forearm massage air inlet 2-4 and the upper arm massage air inlet 3-4, the expansion and contraction of the air blocks are controlled to achieve the massage effect and improve the rehabilitation effect.

[0064] 4) The forearm fixing member 6 and the upper arm fixing member 7 are provided with adjustable annular buckles, which can flexibly adjust the fixing comfort level.

[0065] 5) The pneumatic rehabilitation restraint equipment is respectively driven by multiple pneumatic devices. By continuously inflating or deflating, it can assist the patient in moving the upper limb, thereby meeting the rehabilitation requirements, which is different from the disadvantage of rigid restraint that can only fix and restrain.

[0066] Since this equipment is pneumatically driven, only by repeating the inflation and deflation actions on different parts can the movement of that part be achieved, thereby realizing the rehabilitation exercise of specific parts:

[0067] Firstly, finger rehabilitation can be achieved by inflating and deflating the palm restraint 1;

[0068] Secondly, wrist joint rehabilitation can be achieved by inflating and deflating the wrist joint 4;

[0069] Thirdly, elbow joint rehabilitation can be achieved by inflating and deflating the elbow joint 5.

[0070] 6) The pneumatic rehabilitation restraint equipment can achieve multi-posture restraint and can meet the different restraint needs of patients.

[0071] 7) The pneumatic restraint only needs to control the inflation volume to change the restraint posture, and the operation is convenient and simple.

[0072] Embodiment 2

[0073] The restraint method of the pneumatic rehabilitation restraint equipment provided based on Embodiment 1 in this embodiment includes the following steps:

[0074] 1) Adjust the initial posture of the pneumatic rehabilitation restraint equipment to the state where the patient is not wearing it, so that the patient can easily accept wearing.

[0075] 2) Place the pneumatic rehabilitation restraint equipment on the arm part of the patient that needs to be restrained.

[0076] 3) Through the adjustable forearm fixing member 6 and upper arm fixing member 7, adjust the fixing length so that the patient's upper arm, forearm and palm are closely attached and fixed to the pneumatic rehabilitation restraint equipment correspondingly.

[0077] 4) According to the actual state of the patient, inflate the palm restraint 1, wrist joint 4, and elbow joint 5 of the pneumatic rehabilitation restraint equipment respectively to make them reach the corresponding restraint postures.

[0078] 5) After reaching the restraint posture, if the patient has slight discomfort, the comfort of the restraint posture can be improved by fine-tuning the inflation and deflation volume.

[0079] 6) Complete the restraint.

[0080] 7) After completing the restraint, if there is a massage need, inflate and deflate the massage air ports 1-7, forearm massage air ports 2-4, and upper arm massage air ports 3-4 to realize the massage of the palm, fingers and arm.

[0081] This embodiment controls the rehabilitation restraint posture pneumatically, providing a flexible restraint device with simple operation, effective work, and capable of achieving different restraint postures for different restraint requirements. The device can change the restraint posture and restraint force according to the patient's comfort. It can also realize the rehabilitation treatment of the patient's fingers, wrist joints, elbow joints and related muscle groups by inflating and deflating the palm restraint 1, wrist joint 4, and elbow joint 5, with simple and effective operation. And it can realize the massage of the palm, fingers and arm by inflating and deflating the massage air ports 1-7, forearm massage air ports 2-4, and upper arm massage air ports 3-4.

[0082] The above embodiments are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, the improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A pneumatic rehabilitation restraint device, characterized in that: It includes: A palm restraint, which is used to restrain the movement of both the palm and the fingers by pneumatic drive; A forearm restraint, wherein the forearm restraint is used to fix the forearm; An upper arm restraint, wherein the upper arm restraint is used to fix the upper arm; A wrist joint, used for movably connecting the palm constraint and the forearm constraint, and pneumatically driving to adjust the relative angle between the forearm constraint and the palm constraint; The elbow joint is used to flexibly connect the forearm constraint and the upper arm constraint, and pneumatically drive to adjust the relative angle between the forearm constraint and the upper arm constraint.

2. The pneumatic rehabilitation restraint device according to claim 1, characterized in that: The palm restraint, the wrist joint and the elbow joint are all hollow structures made of flexible materials. The outer wall of the five fingers of the palm restraint facing outwards is serrated; the wrist joint and the elbow joint are both hollow arc-shaped facing outwards, and the outer wall of the arc facing outwards is serrated.

3. The pneumatic rehabilitation restraint device according to claim 2, characterized in that: The movable finger ends of the palm restraint are provided with finger fixations, the palm restraint is provided with interconnected air cavities, the edges of the air cavities are provided with air ports, the base of the palm restraint is hinged to the front end of the forearm restraint, and the air ports are externally connected to a pneumatic drive device.

4. The pneumatic rehabilitation restraint device according to claim 3, characterized in that: A limiting piece is provided at the hinged joint between the base of the palm restraint and the front end of the forearm restraint.

5. The pneumatic rehabilitation restraint device according to claim 2, characterized in that: One end of the wrist joint is provided with a wrist joint air port for inflation and deflation; one end of the elbow joint is also provided with an elbow joint air port for inflation and deflation, and the wrist joint air port and the elbow joint air port are externally connected to a pneumatic drive device; the forearm restraint includes an adjustable forearm fixing part, and the upper arm restraint includes an adjustable upper arm fixing part; the rear end of the forearm restraint is hinged to the front end of the upper arm restraint.

6. The pneumatic rehabilitation restraint device according to claim 5, characterized in that: A limiting piece is provided at the hinged joint of the forearm restraint and the upper arm restraint.

7. The pneumatic rehabilitation restraint device according to claim 1, characterized in that: Any surface or any combination of the surfaces of the palm constraint fitting the hand, the forearm constraint fitting the forearm, and the upper arm constraint fitting the upper arm is provided with a plurality of massage air blocks arranged in an array, and massage of the corresponding parts is achieved by inflating and deflating the massage air ports connected to the massage air blocks.

8. The pneumatic rehabilitation restraint device according to claim 7, characterized in that: The forced restraint fixing part is arranged on the forearm restraint back and / or the upper arm restraint back, and is used to fix the forearm and / or the upper arm to the outside world through the strap.

9. A restraint method for a pneumatic rehabilitation restraint device according to any one of claims 1 to 8, characterized in that: The following steps are involved: 1) adjusting the initial posture of the pneumatic rehabilitation restraint equipment to the posture when the patient is not wearing it; 2) placing the pneumatic rehabilitation restraint equipment on the patient's arm area that needs to be restrained; 3) The patient's upper arm, forearm and palm are closely fitted and fixed to the pneumatic rehabilitation restraint equipment through the forearm restraint and the upper arm restraint; 4) According to the target restraint posture, the air ports of the palm restraint, the wrist joint, and the elbow joint of the pneumatic rehabilitation restraint equipment are inflated and deflated respectively to drive them to reach the corresponding restraint posture; 5) After reaching the restraint posture, if the patient feels slight discomfort, the comfort of the restraint posture can be improved by fine-tuning the air intake and exhaust volume of the corresponding parts; 6) Complete the constraints.

10. The constraint method according to claim 9, characterized in that: Any surface or any combination of surfaces including the surface of the palm constraint that fits the hand, the surface of the forearm constraint that fits the forearm, and the surface of the upper arm constraint that fits the upper arm, is provided with a plurality of massage air blocks arranged in an array. After the constraint is completed, if there is a need for massage, the corresponding massage air ports connected to the massage air blocks are inflated and deflated to massage the corresponding parts.

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