Limb exercise device

Abstract

The utility model discloses a limb exercise device, relates to the technical field of medical instruments, and aims to solve the technical problems that when devices such as a hand-muscle developer or a bouncy ball are used for exercising in the prior art, the exercise effect is poor, and the accuracy of adjusting grip strength by the device is not high. Wherein one side of the connecting ring is provided with an anti-resistance adjusting device, the anti-resistance adjusting device comprises a silica gel layer internally provided with a cavity of an elastic air bag, the elastic air bag is connected with an inflation and deflation device, and one side of the connecting ring is provided with a back cushion which is used for limiting the hand of a patient, can be inflated and deflated and is connected with the elastic air bag through an air delivery pipe. The back cushion is further provided with a limiting device matched with the hand of a patient, and the limiting device is matched with the back cushion. By the adoption of the connecting ring, the silica gel layer, the elastic air bag, the back cushion and the like, when a patient carries out fist-clenching exercise, the patient can carry out fist-clenching and palm stretching two-way exercise, the exercise effect is improved, the grip strength can be finely adjusted according to the grip strength of the patient, and practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a limb exercise device. Background Art

[0002] Arteriovenous fistulas are known as the "golden lifeline" for patients with kidney diseases such as renal failure. They are a commonly used vascular access method for maintenance hemodialysis patients, offering advantages such as safety, adequate blood flow, and a reduced risk of infection. Arteriovenous fistulas are typically created by anastomosing a vein and artery at a specific location on the arm. Exercises are then used to increase the thickness of the fistula's walls, promoting its maturation and ultimately forming a vascular access suitable for hemodialysis.

[0003] After the fistula surgery is completed, the main exercise is functional exercise, and different functional exercises are performed according to the postoperative time. For example, finger exercises can be performed 2 days after surgery, arm exercises can be performed 3 days after surgery, fist exercises can be performed 4 days after surgery, wrist joint exercises can be performed two weeks after surgery, arm binding and fist exercises can be performed three weeks after surgery, and wrist joint rotation exercises can be performed two weeks after stitches are removed.

[0004] In the process of training internal fistula, it is also necessary to use devices such as handgrips or elastic balls to conduct resistance grip training for patients. In the process of making a fist, the handgrips or elastic balls provide resistance for the patient to make a fist, but in the process of extending the patient's fist, the handgrips or elastic balls do not provide pressure on the patient's palm, so that in a cycle of making a fist and extending the palm, the patient can only exercise half of the process, and the effect of the exercise is limited. In addition, as the internal fistula continues to mature, the resistance required by the patient is also increasing. The handgrips adjust the grip strength by twisting the adjustment device on the handgrips to change the elasticity of the spring on the handgrips. This adjustment method is relatively complicated and cannot be fine-tuned for different patients. The adaptability of the device is not high. Utility Model Content

[0005] The utility model discloses a limb exercise device, which aims to solve the technical problems in the prior art of using devices such as grippers or elastic balls for exercise, resulting in poor exercise effects and low accuracy in adjusting grip force.

[0006] In order to solve the above-mentioned technical problems, the technical solutions adopted by the present invention are as follows:

[0007] A limb exercise device includes a connecting ring, a resistance adjustment device is provided on one side of the connecting ring, the resistance adjustment device includes a silicone layer, a cavity is provided in the silicone layer, an elastic airbag is provided in the cavity, the elastic airbag is connected to an inflation and deflation device, a back pad is provided on one side of the connecting ring for limiting the patient's hands, the back pad is an inflatable and deflation structure, the back pad is connected to the elastic airbag through an air supply pipe, and the back pad is also provided with a limiting device that cooperates with the patient's hands, and the limiting device cooperates with the back pad.

[0008] After adopting this technical solution, when the patient's glove is connected to the connecting ring, the palm of the hand contacts the resistance adjustment device and pinches the silicone layer in the resistance adjustment device, and the back of the hand contacts the back pad. By making a fist with the patient's palm, the silicone layer can be squeezed, and then the elastic airbag set in the silicone layer is squeezed, so that the gas in the elastic airbag enters the inflatable and deflated back pad through the air supply tube. After the back pad is inflated, it cooperates with the limit device to cover and limit the patient's palm that has made a fist. When the patient extends his palm, he needs to squeeze the already inflated back pad to make the gas in the back pad enter the elastic airbag again through the air supply tube. This reciprocating process can exercise the patient's fist and palm extension processes. Compared with single fist training, it has a higher training effect, improves the efficiency of training, and saves patients time. By filling an inflatable and deflable elastic airbag with different amounts of gas, the pressure inside the elastic airbag is changed, thereby changing the patient's grip strength when pinching and squeezing the elastic airbag. The grip strength can be finely set for patients with different grip strengths or for the same patient in different recovery exercise periods, thereby improving the practicality and usability of the device.

[0009] Among them, the limiting device includes several limiting plates, one end of each limiting plate is connected to the connecting ring, and the other end is provided with a finger ring. The limiting plates and the finger rings are both elastic structures, and one side of each limiting plate abuts against the back pad.

[0010] With this technical solution, the patient's fingers can be inserted into the finger rings, and the limit plates can move with the patient's hand movements, ensuring that the back pad always fits the patient's hand position, such as aligning with the outstretched palm or covering the patient's fist. The dual action of the finger rings and the limit plates can limit the position of the back pad, forcing the patient to exert work and squeeze the back pad when extending their palm to continue the next round of fist-clenching and palm-extending exercises, thereby enhancing the patient's exercise effect. Both the limit plates and the finger rings are elastic structures, and the finger rings can adjust to the thickness of the fingers of different users, further improving the practicality of the device.

[0011] Wherein, the finger ring is slidably connected to the limiting plate.

[0012] With this technical solution, a slide groove is provided on the limit plate, which is slidably connected to a slider, which is connected to the finger ring. The finger ring can slide on the limit plate, making the device suitable for patients with different finger lengths, increasing the adaptability of the device and saving hospital treatment costs to a certain extent.

[0013] The shape of the back pad matches the shape of the back of the patient's hand, and the end of the back pad matches the second knuckle of the patient's finger. The end of the back pad close to the finger is arranged in the finger ring.

[0014] After adopting this technical solution, the shape of the back pad matches the shape of the back of the patient's hand, and the end portion matches the second knuckle of the patient's finger and is placed in the finger ring, which can reduce the contact area between the back pad and the patient's hand, make the patient's hand skin breathable, and increase the patient's comfort when using the device. In addition, the end portion of the back pad matches the second knuckle of the patient's finger, which can reduce the material usage of the back pad itself, thereby saving the cost of the device.

[0015] The back pad is arranged perpendicular to the side of the connecting ring, an air supply channel is provided in the connecting ring, the air supply pipe is provided in the air supply channel, and is sealed and connected to the back pad through the air supply port at the side end of the connecting ring.

[0016] This technical solution utilizes a rigid gas delivery channel within the connecting ring, ensuring that the tube's diameter does not change during gas transport due to compression or other factors, potentially impacting gas delivery efficiency. A back pad is positioned perpendicular to the side of the connecting ring, aligning with the patient's hand for increased comfort and enhancing the aesthetic appeal of the device.

[0017] Among them, the inflation and deflation device includes an inflation and deflation port arranged on the elastic airbag, and the inflation and deflation port is connected to the outside world after passing through the connecting ring. A sealing cover that cooperates with the inflation and deflation port is provided on the connecting ring, and the sealing cover is detachably connected to an inflation and deflation pump with an inflation and deflation pipe.

[0018] After adopting this technical solution, different masses of gas can be filled into the elastic airbag through the inflation and deflation port and the sealing cover, causing the elastic airbag to expand, thereby making the silicone layer connected to the elastic airbag larger, making it easier for different patients to hold the resistance adjustment device for exercise. The setting of the sealing cover can also prevent gas from escaping directly from the inflation and deflation port, thereby ensuring the stability of the device during use.

[0019] Wherein, the connecting ring is provided with a valve cooperating with the gas pipe.

[0020] After adopting this technical solution, the diameter of the gas supply tube at the valve can be adjusted through the valve, changing the flow rate of the gas at the same time, so that the gas in the elastic airbag moves to the back pad, or the gas in the back pad moves to the elastic airbag. The process will last for a period of time, so that the patient needs to continue to exert force and maintain it during this time, thereby increasing the effect of exercise and promoting the maturation of the fistula.

[0021] Wherein, a switch is provided at the connection point between the air delivery pipe and the elastic airbag, and the switch is an elastic layer. When the elastic airbag is pinched and deformed, the elastic layer opens.

[0022] After adopting this technical solution, the change of the elastic layer switch relies on the patient squeezing the silicone layer when making a fist, causing the elastic airbag inside the silicone layer to deform, and then the elastic layer deforms accordingly, leaking out an opening, and the gas diffuses from the opening. The operation is simple and easy to implement.

[0023] Wherein, the silicone layer and the elastic airbag are both spindle-shaped structures.

[0024] After adopting this technical solution, the spindle-shaped structure better fits the current state of the human palm, which can increase the patient's comfort during fist-clenching exercises. Structurally, the spindle-shaped structure is more compact and exquisite, meeting the requirements of ergonomic design aesthetics.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] (1) The device uses a connecting ring, a silicone layer, an elastic airbag, and a back pad connected to the elastic airbag. When the patient performs a fist-clenching exercise, the extension of the palm can also be resisted, so that the patient can achieve the purpose of two-way exercise during the fist-clenching exercise, thereby increasing the exercise effect. The grip strength can be finely adjusted according to the patient's grip strength, thereby increasing the practicality of the device.

[0027] (2) The finger ring can slide on the limit plate and the limit plate and finger ring with elastic structure can be adaptively adjusted according to the hand conditions of different patients, such as the length of fingers, thereby increasing the practicality of the device.

[0028] (3) A valve is used to control the flow rate of gas entering the back pad or elastic air bag through the gas tube at the same time, so that the patient needs to exert force continuously and maintain it during the time of gas flow, thereby increasing the effect of exercise and promoting the maturation of fistula.

[0029] (4) The shuttle-shaped structure of the elastic airbag and silicone layer is more in line with the current state of the human palm, which can increase the patient's comfort during fist-clenching exercises. In addition, the shuttle-shaped structure is more compact and exquisite in structure, which meets the requirements of ergonomic design aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0031] Figure 1 This is a front view structural diagram of a limb exercise device of the present invention;

[0032] Figure 2 This is a schematic diagram of the top view of a limb exercise device and a person wearing it.

[0033] Reference numerals

[0034] 1-finger ring, 2-limiting plate, 3-resistance adjustment device, 301-silicone layer, 302-sealing cover, 303-inflating and deflating port, 304-elastic airbag, 305-switch, 306-air pipe, 307-air port, 4-connecting ring, 5-back pad. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and indicated in the accompanying drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0036] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] The following combination Figure 1-Figure 2 The utility model is described in detail.

[0038] Example 1

[0039] like Figure 1-2As shown, a limb exercise device includes a connecting ring 4, and a resistance adjustment device 3 is provided on one side of the connecting ring 4. The resistance adjustment device 3 includes a silicone layer 301, and a cavity is provided in the silicone layer 301. An elastic airbag 304 is provided in the cavity. The elastic airbag 304 is connected to an inflation and deflation device. A back pad 5 for limiting the patient's hand is provided on one side of the connecting ring 4. The back pad 5 is an inflatable and deflation structure. The back pad 5 is connected to the elastic airbag 304 through an air supply pipe 306. The back pad 5 is also provided with a limiting device that cooperates with the patient's hand, and the limiting device cooperates with the back pad 5.

[0040] In this embodiment, the connecting ring 4 is made of silicone material, which is elastic and not easily deformed, and can adapt to patients with different palm sizes, thereby increasing the practicality of the device.

[0041] In this embodiment, the silicone layer 301 and the connecting ring 4 are integrally formed.

[0042] In this embodiment, the back pad 5 is sealed and adhered to the connecting ring 4 .

[0043] In this embodiment, two air delivery pipes 306 are provided, and the two air delivery pipes 306 are symmetrically arranged on the elastic airbag 304 and are integrally formed with the elastic airbag 304. The air delivery pipes 306 are sealed and adhered to the back pad 5.

[0044] When the patient's glove is connected to the connecting ring 4, the palm of the hand contacts the resistance adjustment device 3 and pinches the silicone layer 301 therein, while the back of the hand contacts the back pad 5. By clenching the palm of the patient's hand into a fist, the silicone layer 301 is squeezed, which in turn squeezes the elastic airbag 304 disposed therein. The gas in the elastic airbag 304 enters the inflatable and deflable back pad 5 through the air supply tube 306. After inflation, the back pad 5 cooperates with the limiting device to cover and limit the position of the patient's palm.

[0045] When the patient extends his palm, he needs to squeeze the back pad 5 that has been filled with gas so that the gas in the back pad 5 can enter the elastic air bag 304 again through the gas supply pipe 306. In this way, the patient can exercise both the process of clenching the fist and extending the palm. Compared with single fist clenching training, it has a higher training effect, improves the efficiency of training, and saves the patient's time.

[0046] By filling the inflatable and deflable elastic airbag 304 with different amounts of gas, the pressure inside the elastic airbag 304 is changed, thereby changing the patient's grip strength when pinching and squeezing the elastic airbag 304. The grip strength can be finely set for patients with different grip strengths or for the same patient in different recovery exercise periods, thereby improving the practicality and usability of the device.

[0047] In this embodiment, the limiting device includes several limiting plates 2, one end of each limiting plate 2 is connected to the connecting ring 4, and the other end is provided with a finger ring 1. The limiting plates 2 and the finger ring 1 are both elastic structures, and one side of each limiting plate 2 is in contact with the back pad 5.

[0048] In this embodiment, one end of each limiting plate 2 connected to the connection 4 is adhered, and adhered to the side of the connecting ring 4 away from the silicone layer 301. The adhesion makes the two contacting surfaces flat at the connection, which can improve the patient's usage experience.

[0049] In this embodiment, the limiting plate 2 is an elastic silicone plate, the finger ring 1 is an elastic band, the finger ring 1 is sleeved on the elastic plate 2, and the elastic plate 2 contacts the back pad 5 on the side close to the silicone layer 301.

[0050] The patient's fingers can be sleeved on the finger ring 1, and the limiting plate 2 can move along with the movement of the patient's hand, so that the back pad 5 always fits the position of the patient's hand, such as aligning with the extended palm position or covering the patient's fist. Therefore, under the dual action of each finger ring 1 and the limiting plate 2, the position of the back pad 5 can be restricted, so that the patient needs to squeeze the back pad 5 when extending the palm, so that the palm can be extended to perform the next round of fist-clenching and palm-extending exercise, thereby increasing the patient's exercise effect.

[0051] The limiting plate 2 and the finger ring 1 both adopt an elastic structure, which can change with the thickness of the fingers of different patients, further improving the practicality of the device.

[0052] In this embodiment, the finger ring 1 is slidably connected to the limiting plate 2 .

[0053] In this embodiment, a sliding groove is provided on the limiting plate 2 , a slider is slidably connected to the sliding groove, the slider is connected to the finger ring 1 , and the slider is adhered to the finger ring 1 .

[0054] In this embodiment, the inner side wall of the finger ring 1 is adhered to the slider, and the limiting plate is arranged in the inner side wall of the finger ring 1.

[0055] Finger ring 1 can slide on limit plate 2, allowing the device to adapt to patients with different finger lengths, increasing the device's adaptability. Furthermore, the position adjustment accuracy of finger ring 1 can be increased during adjustment, improving the patient's experience and potentially saving hospital treatment costs.

[0056] In this embodiment, the shape of the back pad 5 matches the shape of the back of the patient's hand, and the end of the back pad 5 matches the second knuckle of the patient's finger. The end of the back pad 5 close to the finger is arranged in the finger ring 1.

[0057] In this embodiment, the back pad 5 is in contact with a side of the limiting plate 2 close to the back pad 5 .

[0058] The shape of the back pad 5 matches the shape of the back of the patient's hand, and the end portion matches the second knuckle of the patient's finger and is placed in the finger ring 1, which can reduce the contact area between the back pad 5 and the patient's hand, make the patient's hand skin breathable, and increase the patient's comfort when using the device. In addition, the end portion of the back pad 5 matches the second knuckle of the patient's finger, which can reduce the material usage of the back pad 5 itself, thereby saving the cost of the device.

[0059] In this embodiment, the back pad 5 is arranged perpendicular to the side of the connecting ring 4, and an air supply channel is provided in the connecting ring 4. The air supply pipe 306 is provided in the air supply channel and is sealed and connected to the back pad 5 through the air supply port 307 at the side end of the connecting ring 4.

[0060] In this embodiment, there are five gas delivery ports 307, which match the positions of the patient's five fingers. The gas delivery ports 307 are connected to the gas delivery channel. The gas delivery ports 307 pass through the connecting ring 4 close to one end of the back pad 5 and are sealed and adhered to the connecting ring 4. Five air inlets that match the gas delivery ports 307 are provided at the sealed adhesion between the back pad 5 and the connecting ring 4. Each of the gas delivery pipes 306 is adhered to the gas delivery pipeline at the two gas delivery ports 307 close to the two ends.

[0061] In this embodiment, the gas delivery channel and the connecting ring 4 are integrally formed.

[0062] The gas delivery channel adopts a hard silicone structure and is arranged in the connecting ring 4, which can ensure that the diameter of the gas delivery pipe 306 will not change due to squeezing or other factors during the process of transporting gas, thereby affecting the gas delivery efficiency.

[0063] The back pad 5 is vertically arranged on the side end of the connecting ring 4. Firstly, it fits the patient's hand structure and can increase the comfort of use. Secondly, it can increase the beauty of the device and conform to the aesthetic design.

[0064] In this embodiment, the inflation and deflation device includes an inflation and deflation port 303 arranged on the elastic airbag 304. The inflation and deflation port 303 passes through the connecting ring 4 and is connected to the outside world. The connecting ring 4 is provided with a sealing cover 302 that cooperates with the inflation and deflation port 303. The sealing cover 302 is detachably connected to an inflation and deflation pump with an inflation and deflation pipe.

[0065] In this embodiment, the sealing cover 302 is adhered to the connecting ring 4 .

[0066] Through the inflation / deflation port 303 and the sealing cover 302, the elastic airbag 304 can be filled with gases of different masses to expand the elastic airbag 304, thereby enlarging the silicone layer 301 connected to the elastic airbag 304, making it easier for different patients to hold the resistance adjustment device 3 for exercise. The setting of the sealing cover 302 can also prevent gas from escaping directly from the inflation / deflation port 303, thereby ensuring the stability of the device during use.

[0067] The specific usage of this utility model is as follows:

[0068] Reference Figure 1-Figure 2 To use the device, first open the sealing cover 302 on the connecting ring 4 and inflate the elastic airbag 304 through the inflation / deflation port 303, adjusting the pressure inside the elastic airbag 304 to match the patient's grip strength. Then, close the sealing cover 302, and then place the connecting ring 4 over the patient's hand, placing the back pad 5 in contact with the back of the patient's hand and the second knuckle. Slide the finger ring 1 so that it aligns with the patient's second knuckle, and finally place the finger ring 1 over the patient's hand. Alternatively, first slide the finger ring 1 so that it aligns with the patient's second knuckle, and then place the device over the corresponding position on the patient's hand. Finally, inflate the elastic airbag 304 until the gas fills the elastic airbag 304, the air delivery tube 306, and the back pad 5.

[0069] The patient's hand grasps the resistance adjustment device 3, squeezing the silicone layer 301. This causes the gas inside the elastic airbag 304 to further inflate the back pad 5 through the air supply tube 306, causing the back pad 5 to further expand. During this process, the patient's palm gradually forms a fist shape, and the back pad 5 gradually covers, squeezes, and restricts the fist. The back pad 5 half-covers the fist, particularly contacting the backs of the fingers and part of the back of the hand. When the patient extends their palm, the patient's hand squeezes the back pad 5, and the gas is once again transported back to the elastic airbag 304 through the air supply tube 306. The patient needs to use force to resist the pressure of the elastic airbag 304 and back pad 5 when extending their palm and making a fist in order to perform the corresponding training. Therefore, the training effect is better. By changing the amount of gas in the elastic airbag 304, the pressure inside the elastic airbag 304 can be precisely changed, thereby cooperating with patients with different grip strengths, and the device has better accuracy and practicality.

[0070] Example 2

[0071] This embodiment is basically the same as embodiment 1, except that: in this embodiment, a switch 305 is provided at the connection point between the air pipe 306 and the elastic airbag 304. The switch 305 is an elastic layer. When the elastic airbag 304 is pinched and deformed, the elastic layer opens.

[0072] In this embodiment, the elastic airbag 304 is connected to the air delivery tube 306 via a retaining ring. The retaining ring is larger than the air delivery tube 306 and communicates with the air delivery tube 306 and the elastic airbag 304. The elastic layer is disposed on the side of the elastic airbag 304 near the retaining ring and matches the size and shape of the elastic airbag 304. One end of the elastic layer is adhered to the elastic airbag 304, while the other end is disconnected. When the elastic airbag 304 is inflated, the elastic layer's size matches the elastic airbag 304 and is larger than the retaining ring, preventing gas from escaping from the elastic airbag 304. When the elastic airbag 304 is squeezed, the elastic layer deforms toward the side near the retaining ring, opening an opening and allowing gas to pass through and be delivered to the back pad 5. When the back pad 5 is squeezed, only one end of the elastic layer adheres to the elastic airbag 304. The pressure from the gas being squeezed out of the back pad 5 opens the elastic layer, allowing gas to re-enter the elastic airbag 304.

[0073] The change of the switch 305 relies on the patient squeezing the silicone layer 301 when making a fist, causing the elastic airbag 304 inside the silicone layer 301 to deform, and then the elastic layer deforms accordingly, leaking out an opening, and the gas diffuses from the opening. The operation is simple and easy to implement.

[0074] Example 3

[0075] This embodiment is basically the same as the embodiment 1, except that: in this embodiment, a valve cooperating with the gas pipe 306 is provided on the connecting ring 4 .

[0076] In this embodiment, two valves are provided, and the valves are provided at both ends of the connecting ring 4 close to the elastic airbag 304 .

[0077] The diameter of the gas supply tube 306 at the valve can be adjusted through the valve to change the flow rate of the gas at the same time, so that the gas in the elastic airbag 304 moves to the back pad 5, or the gas in the back pad 5 moves to the elastic airbag 304. The process will last for a period of time, so that the patient needs to continue to exert force and maintain it during this time, thereby increasing the effect of exercise and promoting the maturation of the fistula.

[0078] Example 4

[0079] This embodiment is substantially the same as the first embodiment, except that: in this embodiment, the silicone layer 301 and the elastic airbag 304 are both fusiform structures.

[0080] The spindle-shaped structure is more in line with the current state of the human palm and can increase the patient's comfort during fist-clenching exercises. Structurally, the spindle-shaped structure is more compact and exquisite, meeting the requirements of ergonomic design aesthetics.

[0081] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A limb exercise device, characterized in that: The invention comprises a connecting ring (4), a resistance adjusting device (3) is arranged on one side of the connecting ring (4), the resistance adjusting device (3) comprises a silicone layer (301), a cavity is arranged in the silicone layer (301), an elastic air bag (304) is arranged in the cavity, the elastic air bag (304) is connected to an inflation and deflation device, a back pad (5) for limiting the position of a patient's hand is arranged on one side of the connecting ring (4), the back pad (5) is an inflatable and deflation structure, the back pad (5) is connected to the elastic air bag (304) through an air supply pipe (306), and a limiting device for cooperating with the patient's hand is also arranged on the back pad (5), and the limiting device cooperates with the back pad (5).

2. A limb exercise device according to claim 1, characterized in that: The limiting device comprises a plurality of limiting plates (2), one end of each limiting plate (2) is connected to a connecting ring (4), and the other end is provided with a finger ring (1), the limiting plate (2) and the finger ring (1) are both elastic structures, and one side of each limiting plate (2) is in contact with the back pad (5).

3. A limb exercise device according to claim 2, characterized in that: The finger ring (1) is slidably connected to the limiting plate (2).

4. A limb exercise device according to claim 2, characterized in that: The shape of the back pad (5) matches the shape of the back of the patient's hand, and the end of the back pad (5) matches the second knuckle of the patient's finger. The end of the back pad (5) close to the finger is arranged in the finger ring (1).

5. A limb exercise device according to any one of claims 1 to 4, characterized in that: The back pad (5) is arranged perpendicular to the side of the connecting ring (4), and a gas transmission channel is arranged in the connecting ring (4). The gas transmission pipe (306) is arranged in the gas transmission channel and is sealed and connected to the back pad (5) through a gas transmission port (307) at the side end of the connecting ring (4).

6. A limb exercise device according to any one of claims 1 to 4, characterized in that: The inflation and deflation device comprises an inflation and deflation port (303) arranged on the elastic airbag (304); the inflation and deflation port (303) passes through the connecting ring (4) and is communicated with the outside; the connecting ring (4) is provided with a sealing cover (302) cooperating with the inflation and deflation port (303); the sealing cover (302) is detachably connected to an inflation and deflation pump with an inflation and deflation pipeline.

7. A limb exercise device according to any one of claims 1 to 4, characterized in that: The connecting ring (4) is provided with a valve that cooperates with the gas delivery pipe (306).

8. A limb exercise device according to any one of claims 1 to 4, characterized in that: A switch (305) is provided at the connection point between the air delivery pipe (306) and the elastic airbag (304); the switch (305) is an elastic layer, and when the elastic airbag (304) is pinched and deformed, the elastic layer opens.

9. A limb exercise device according to any one of claims 1 to 4, characterized in that: The silica gel layer (301) and the elastic airbag (304) are both shuttle-shaped structures.

Images