CN111920561A - Auxiliary device is corrected to knee joint - Google Patents

Abstract

The invention discloses an auxiliary device for knee joint correction, comprising a strap capable of covering the knee joint and a pressurizing bag for providing pressure to the knee joint. A positioning hole is provided, and two sides of the strap are connected with connecting straps for fixing the strap; the pressurized bag is connected to the outer surface of the strap, and the interior of the pressurized bag is filled with filler. The invention has a good effect in the rehabilitation treatment of knee flexion deformity, the use of the device of the invention can effectively reduce the pressure of the patellofemoral joint during the treatment process, and reduce the tenderness of the patient's anterior knee area during compression. The number of pressurizing bags is used to adjust the pressurized pressure, which ensures the treatment effect and the comfort of the patient, and will not cause additional damage due to excessive pressure, which is helpful for the patient to recover as soon as possible. At the same time, the device of the present invention can ensure continuous pressurization. The effect of correction can effectively avoid the occurrence of secondary injuries such as pressure ulcers.

Description

A kind of knee joint correction auxiliary device

technical field

The invention relates to the field of medical rehabilitation equipment, in particular to a knee joint correction auxiliary device.

Background technique

The purpose of total knee arthroplasty is to relieve joint pain, correct joint deformity, and improve the functional state of the affected knee, thereby improving the quality of daily life of patients after surgery. Rehabilitation activities before and after surgery can maximize the range of motion of the knee joint and improve the function of the prosthetic knee joint. Treatment during operation and postoperative rehabilitation exercise will have a direct impact on the improvement of postoperative knee function. It should attract the attention of the surgeon and make the patient fully understand it. Comprehensive and adequate rehabilitation is important for the success of total knee replacement surgery. The main purpose of postoperative rehabilitation exercises is to strengthen the flexor and extensor muscles around the knee joint, improve the range of motion of the knee joint, and promote the recovery of overall physical strength and state. Active or passive knee exercises can prevent postoperative joint adhesions, improve local or entire lower extremity blood circulation, and reduce postoperative complications. Through walking or other coordination training, improve the balance and coordination of muscle strength and soft tissue around the knee joint, and ensure the stability of the joint. Through joint activity training, the range of motion and function of the knee joint is close to that of ordinary people, so that it can meet the needs of daily activities and participation in some social activities. At the same time, it can improve the mental and psychological outlook of patients and stimulate a healthy enthusiasm for life. However, since some patients undergoing knee arthroplasty will have different degrees of knee flexion deformity after surgery, which will lead to imbalance of muscle strength, which will have a certain impact on the daily life of patients, so early rehabilitation treatment is extremely important. At present, there are few rehabilitation devices for flexion deformity correction after knee arthroplasty, and some devices are complicated to operate and expensive to use, and may cause a second injury to the patient during use, such as heel pressure ulcers and wounds. pressure injuries, etc.

To sum up, how to conveniently and safely realize the correction of flexion deformity after knee arthroplasty is an urgent problem for those skilled in the art to solve.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a knee joint correction auxiliary device, which is simple to operate by one person, convenient and practical, reusable, low in production cost, and greatly reduces the burden on doctors and patients. And it can be adjusted at any time according to your own situation, and the effect is accurate. It can effectively reduce the pressure of the patellofemoral joint, reduce the tenderness of the patient's anterior knee area during compression, prolong the patient's use of the device, greatly improve the use effect, and help the patient to recover as soon as possible. Convenient In clinical application and promotion, especially for the correction of flexion deformity after knee replacement, the correction effect is good, and there is no side effect.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

A knee joint correction auxiliary device, comprising a strap that can cover the knee joint and a pressure bag that provides pressure to the knee joint, the strap center is provided with a positioning hole that can expose the knee joint patella, and Connecting straps for fixing the strap are connected on both sides of the strap; the pressurized bag is connected to the outer surface of the strap, and the interior of the pressurized bag is filled with filler.

The design idea of the above technical scheme is that the flexion deformity of the knee joint, especially the flexion deformity after knee joint replacement, requires the patient to perform rehabilitation treatment with the help of auxiliary devices, and the existing device structure and operation are complicated, which may easily lead to the patient's second Second injury, the present invention simplifies the device structure and operation process under the premise of ensuring the effect of rehabilitation treatment through the design of the strap and the pressure bag, and applies pressure to the knee joint of the patient through the weight of the strap and the pressure bag to achieve the correction effect. At the same time, the present invention is also provided with a positioning hole on the strap, on the one hand, it is beneficial for the patient to quickly find the fixed position of the device when operating by himself, and plays the role of fixing the strap and preventing the strap from being displaced, on the other hand, it can also effectively It can reduce the pressure on the patellofemoral joint and reduce the tenderness of the patient's anterior knee area during compression, which can effectively prolong the patient's use of the device and improve the use effect.

As a further improvement of the above technical solution:

The center of the pressurizing bag is provided with a hollow hole having the same size as the circular positioning hole, and the positions of the hollow hole and the positioning hole are completely corresponding. The corresponding hollow holes on the compression bag can disperse the pressure of the compression bag on the patella, effectively reduce the pressure on the patellofemoral joint, further reduce the tenderness of the patient's anterior knee area during compression, prolong the time for the patient to use the device, and improve the use effect. At the same time, the hollow hole on the pressure bag is designed corresponding to the positioning hole, which can ensure the uniform force of the knee joint, and can also ensure the pressure of the patella during compression, reduce the pain of the patient, and ensure the comfort of use.

The inner surface of the strap is covered with a non-slip pad. By arranging a non-slip pad on the inner surface of the strap, it can be ensured that when the patient is undergoing correction, the pressure bag will not fall off with a slight change in body position, thereby ensuring the effect of continuous pressure correction and avoiding injury.

Velcro is arranged on the pressurized bag and the strap, and the pressurized bag is connected with the strap by the Velcro. The above connection method enables the patient to choose whether to connect the pressurized bag according to their own feeling and body feedback, and also facilitates the storage and storage of the device.

The knee joint correction auxiliary device includes a plurality of the compression bags, the plurality of compression bags are stacked layer by layer, and the positions of the hollow holes of the plurality of compression bags are completely corresponding. The above design enables the patient to adjust the compression pressure at any time by increasing or decreasing the number of compression bags, which ensures the patient's treatment effect and comfort in use, and avoids the problem of additional damage caused by excessive pressure.

The plurality of pressurized bags are connected by Velcro. The above-mentioned connection method enables the patient to conveniently and quickly increase or decrease the pressure bag according to their own feeling and body feedback, and also facilitates the storage and storage of the device.

The filler is sand or rice. The above-mentioned filler can provide the required weight for the pressurizing bag, and the particles are small, which can ensure that the knee joint is evenly stressed during pressurization, and prevent the patient from suffering secondary injuries.

It also includes a lower limb protection pad, the lower limb protection pad is a groove structure with a circular arc in cross section, and one end of the lower limb protection pad is wider than the other end. The additional lower limb protection pad can provide pressure to the patient under the knee joint to cooperate with the pressure above the knee joint to achieve better treatment effect, and the structure of the lower limb protection pad conforms to the lower limb anatomy of the human body with thick thighs and thin calves The structure fits the physiological curvature of the lower limbs, which can protect the heel of the patient and avoid the secondary injury of the heel pressure ulcer during the treatment process.

The inner surfaces of both ends of the lower limb protection pad are provided with a plurality of cylindrical protrusions. The cylindrical protrusion in the lower extremity protection pad helps to reduce the compression of the lower extremity blood vessels by the compression bag during use, helps the blood return of the lower extremity, and improves the use time and comfort of the patient.

The lower limb protection pad is composed of a three-layer structure of an inner surface layer, a middle layer and an outer surface layer from the inside to the outside; The inner surface layer is a silica gel layer or a sponge layer, the middle layer is a silica gel layer or a sponge layer, and the outer surface layer is a polyphenylene sulfide layer or a polyvinyl chloride layer. The use of different materials to form a multi-layer structure can ensure that the lower limb protection pad can not only give corresponding pressure through the relatively hard outer surface, but also ensure the comfort of the patient during use through the soft inner surface, play a protective role, and avoid secondary injuries. .

Both ends of the lower limb protection pad are provided with fixing belts. By setting the fixing belt, the force exerted by the lower limb protection pad on the knee joint can be increased, the correction effect can be enhanced, and at the same time, it can be ensured that the pad will not shift during use, which is beneficial to single person use and can avoid secondary injuries.

Both the fixing belt and the connecting belt are fixed by Velcro.

The weight of each pressurized bag is 0.5-3 kg. If the weight of the compression bag is too light, there will be no correction effect. If the weight of the compression bag is too heavy, the volume of the compression bag will be too large, which is not conducive to the stability of the device during use and the convenience of the patient's operation. Correction cannot be guaranteed.

Compared with the prior art, the present invention has the advantages that: the present invention has a good effect on the rehabilitation treatment of knee flexion deformity, and the use of the device of the present invention can effectively reduce the pressure on the patellofemoral joint during the treatment process, and reduce the pressure on the patellofemoral joint. The tenderness in the anterior knee area of the patient prolongs the time that the patient uses the device, greatly improves the use effect, and helps the patient to recover as soon as possible. At the same time, the device of the present invention can ensure the effect of continuous compression and correction, and can effectively avoid secondary injuries such as pressure ulcers. At the same time, the patient can easily and quickly adjust the compression pressure at any time by increasing or decreasing the number of compression bags, which ensures the patient's treatment effect and comfort of use, and will not cause additional damage due to excessive pressure.

Description of drawings

Fig. 1 is the top view of embodiment 1 bandage;

Fig. 2 is the bottom view of embodiment 1 bandage;

Fig. 3 is the front view of embodiment 1 bandage;

4 is a top view of the pressurized bag of Example 1;

5 is a bottom view of the pressurized bag of Example 1;

6 is a front view of the pressurized bag of Example 1;

7 is a schematic diagram of the connection form between the strap and the pressurized bag in Example 1;

8 is a schematic diagram of the overall structure of the lower limb protection pad in Example 1;

FIG. 9 is a schematic diagram of the three-layer structure of the lower limb protection pad in Example 1. FIG.

illustration:

1. Strap; 2. Compression bag; 3. Positioning hole; 4. Connecting belt; 5. Filling; 6. Hollow hole; 7. Anti-skid pad; 8. Velcro; 9. Lower limb protection pad; 10. Cylindrical protrusion; 11, inner surface layer; 12, middle layer; 13, outer surface layer; 14, fixing belt.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1:

As shown in FIGS. 1-9 , a knee joint correction auxiliary device in this embodiment includes a strap 1 , a compression bag 2 and a lower limb protection pad 9 . The two sides of the strap 1 are connected with connecting straps 4, the center of the strap 1 is provided with a circular positioning hole 3 that is consistent with the shape and size of the patella, the outer ends of the strap 1 are each provided with a Velcro 8, and the inner surface is provided with a non-slip pad 7. The connecting tape 4 is also provided with a Velcro 8, and the connecting tapes 4 on both sides are pasted to each other through the Velcro 8. The filling 5 in the pressurized bag 2 is sand or rice, and the weight of a single pressurized bag 2 is 2kg. There is a circular hollow hole 6 in the center of the pressurizing bag 2, and the positions of the hollow hole 6 and the positioning hole 3 are completely corresponding. There is a Velcro 8 on each end of the upper surface, and two corresponding positions on the lower surface. Velcro 8. The lower limb protection pad 9 has an arc-shaped cross section, which fits the physiological curvature of the lower limb. A plurality of cylindrical protrusions 10 are arranged on the thigh and calf side in the arc-shaped groove of the lower limb protection pad 9 . The lower limb protection pad 9 is composed of a three-layer structure, the inner surface layer 11 is an extrusion layer, and the extrusion layer is provided with several cylindrical convex structures 10, the middle layer 12 is a flexible support layer, and the outer surface layer 13 is a rigid support Floor. The extrusion layer and the flexible support layer are made of silicone material, sponge material or a combination thereof. The rigid support layer is made of polyphenylene sulfide (PPS) and polyvinyl chloride (PVC). The upper and lower ends of the lower limb protection pad 9 are respectively provided with fixing straps 14, and the fixing straps 14 are also provided with a Velcro 8. The fixing range of the Velcro can be adjusted according to the actual use situation to meet the needs of patients of all ages to the greatest extent.

This embodiment can be applied to patients with knee flexion deformity after knee replacement surgery or knee flexion deformity caused by other factors such as rheumatoid joints. The usage method is as follows:

(1) Before use, first place the lower limb protection pad 9 in the device under the affected limb, and the patient lies on the bed so that the entire lower limb is placed in the groove of the lower limb protection pad 9, and then the lower limb protection pad 9 The fixing straps 14 at the upper and lower ends are tightened to prevent the lower limb protection pad 9 from moving during use;

(2) Place the strap 1 on the knee joint so that the patella of the affected knee is located in the positioning hole 3, and then pass the connecting straps 4 on both sides of the strap 1 around the knee joint of the affected limb and the lower limb protection pad under the knee joint The board 9 is fixed firmly by the Velcro 8 arranged on the board 9 after adjusting the tightness according to the size of the patient's affected limb;

(3) Place the pressurized bag 2 on the strap 1, align the hollow hole 6 on the pressurized bag 2 with the positioning hole 3 on the strap 1, and finally connect it through the Velcro 8 at the corresponding position on it, The number of pressurized bags 2 can be increased or decreased according to the actual situation. After a period of compression, the compression bag 2 can be removed, and the knee joint can be treated with ice.

The advantage of this embodiment is that, by arranging a non-slip pad 7 on the lower surface of the strap 1 and cooperating with the lower limb protection pad 9 for fixed pressure, the pressure bag 2 will not change slightly with the body position when the patient is rectified. And fall, to ensure a continuous pressure correction effect, and the heel is protected by the lower limb protection pad 9, there will be no secondary damage such as pressure sores. In this embodiment, the patient can conveniently and quickly adjust the compression pressure at any time by increasing or decreasing the number of the compression bags 2 , which ensures the patient's treatment effect and usage comfort, and will not cause additional damage due to excessive pressure. In this embodiment, a positioning hole 3 is creatively arranged in the center of the strap 1 and a hollow hole 6 is arranged in the center of the pressure bag 2, which can effectively reduce the pressure on the patellofemoral joint, reduce the tenderness of the patient's anterior knee area during compression, and prolong the time for the patient to use the device. , which greatly improves the use effect and helps patients recover as soon as possible.

The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and transformations obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims (10)

1. The knee joint correction auxiliary device is characterized by comprising a bandage (1) capable of covering the knee joint and a pressurizing bag (2) for providing pressure for the knee joint, wherein a positioning hole (3) capable of exposing the patella of the knee joint is formed in the center of the bandage (1), and connecting belts (4) for fixing the bandage (1) are connected to two sides of the bandage (1); the pressurizing bag (2) is connected to the outer surface of the bandage (1), and the pressurizing bag (2) is filled with filler (5).

2. The knee joint correction auxiliary device according to claim 1, characterized in that the center of the pressurizing bag (2) is provided with a hollowed hole (6) with the same size as the circular positioning hole (3), and the positions of the hollowed hole (6) and the positioning hole (3) are completely corresponding.

3. The knee joint correction auxiliary device according to claim 2, characterized in that the pressurizing bag (2) and the strap (1) are provided with magic tapes (8), and the pressurizing bag (2) is connected with the strap (1) through the magic tapes (8).

4. The knee joint correction assistance device according to claim 3, characterized by comprising a plurality of said compression pockets (2), wherein said compression pockets (2) are stacked one on top of the other, and the positions of the hollowed-out holes (6) of said compression pockets (2) are completely corresponding.

5. The knee joint orthosis according to claim 4, wherein the plurality of compression pockets (2) are connected by a hook and loop fastener (8).

6. Knee joint correction assistance device according to claim 1, characterized in that the inner surface of the strap (1) is covered with a non-slip mat (7).

7. Knee joint orthosis according to claim 1, characterized in that the filler (5) is sand or rice.

8. The knee joint correction auxiliary device according to any one of claims 1 to 7, further comprising a lower limb protection pad (9), wherein the lower limb protection pad (9) has a groove structure with a circular arc-shaped cross section, two ends of the lower limb protection pad (9) are a thigh end and a shank end respectively, and the thigh end is wider than the shank end.

9. The knee joint correction assistance device according to claim 8, characterized in that the inner surfaces of both ends of the lower limb protection plate (9) are provided with a plurality of cylindrical protrusions (10).

10. The knee joint correction assistance device according to claim 8, characterized in that the lower limb protection pallet (9) is constituted by a three-layer structure of an inner surface layer (11), an intermediate layer (12) and an outer surface layer (13) from inside to outside; the inner surface layer (11) is a silica gel layer or a sponge layer, the middle layer (12) is a silica gel layer or a sponge layer, and the outer surface layer (13) is a polyphenylene sulfide layer or a polyvinyl chloride layer.

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