High-stability pneumatic knee joint

Abstract

The utility model relates to the technical field of air pressure knee joints, in particular to a high-stability air pressure knee joint which comprises a knee sleeve frame and a sleeve connection groove, one end of the side face of the knee sleeve frame is fixedly connected with a top connection cover, the other end of the inner wall of the knee sleeve frame is provided with a top connection air bag, and the top end of the knee sleeve frame is provided with a first leg sleeve frame. A second leg sleeve frame is arranged at the bottom end of the knee sleeve frame, and a first air control pump machine and a second air control pump machine are arranged on the back of the first leg sleeve frame and the back of the second leg sleeve frame. Through the arrangement of the knee sleeve frame, the sleeve connection groove, the top connection cover, the top connection air bag, the first leg sleeve frame, the second leg sleeve frame, the first air control pump machine, the second air control pump machine, the first air conveying pipe, the second air conveying pipe and the limiting rubber ring, the equipment can carry out adaptive buffering operation with higher stability on an air pressure knee joint; a worker firstly sleeves and installs the knee sleeve frame at a knee joint position through the first leg sleeve frame and the second leg sleeve frame at the upper end and the lower end.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pneumatic knee joint, concretely is a high stability pneumatic knee joint. BACKGROUND

[0002] The human knee joint is composed of the femur or femur, tibia and fibula, and the patella, there is a cartilage disc between the femur and tibia, respectively called medial meniscus and lateral meniscus, the front lower end of the femur has a groove suitable for placing the patella, the surface of these joints is covered with cartilage, which can absorb shock and withstand pressure, the cartilage, especially the meniscus, is the most vulnerable part of the human body during exercise, once the joint is damaged, it will cause joint pain and dysfunction, artificial joint replacement can effectively reconstruct the joint function and improve the quality of life of patients.

[0003] For example, the patent document with the announcement number CN 215839735 U discloses a high-stability intelligent pneumatic knee joint, which relates to the field of knee joint, comprising a first plate, the end of the first plate is integrally provided with a connecting round rod, the end of the connecting round rod is integrally provided with a spherical ball, when the upper joint structure composed of the second plate and the third plate and the lower joint structure composed of the first plate rotate with the spherical ball as the hinge point, the compression rubber block and the first air bag ring and the second air bag ring inside the rubber block are compressed, the gas inside the first air bag ring and the second air bag ring is extruded to form a buffer, avoiding the hard bending between the upper joint structure and the lower joint structure, the protection is strong, and the purpose of air pressure buffer protection is achieved, and when the airflow control device is opened, the gas in the first air bag ring can be filled into the second air bag ring to make the second air bag ring swell and become thick, the first air bag ring remains low pressure, the gas in the second air bag ring is used for buffer pressure relief, the difficulty of gas compression is increased, and the buffering property is increased.

[0004] However, the structure in the actual process is limited by its own structure, and can only adopt a simple air extraction and pressure method to realize the pneumatic buffering operation of the knee joint, but the adaptability of the knee joint is poor, and the equipment cannot be installed between the equipment and the patient, which cannot meet the daily use demand, therefore, a high-stability pneumatic knee joint is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high-stability pneumatic knee joint to solve the problem that the existing structure in the actual process is limited by its own structure, and can only adopt a simple air extraction and pressure method to realize the pneumatic buffering operation of the knee joint, but the adaptability of the knee joint is poor, and the equipment cannot be installed between the equipment and the patient, which cannot meet the daily use demand.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A high stability air pressure knee joint, including knee sleeve frame, the inside of knee sleeve frame is provided with sleeve slot, one end of the side surface of knee sleeve frame is fixedly connected with top cover, the inner wall of knee sleeve frame is provided with top cover air bag on the other end,

[0007] First leg sleeve frame and second leg sleeve frame, the top of knee sleeve frame is provided with first leg sleeve frame, the bottom of knee sleeve frame is provided with second leg sleeve frame, the back of first leg sleeve frame and second leg sleeve frame is provided with first gas control pump machine and second gas control pump machine.

[0008] Preferably, first gas control pump machine and second gas control pump machine are provided with first gas pipe and second gas pipe, and the knee sleeve frame and the second gas pipe are communicated with the top cover air bag.

[0009] Preferably, the inner wall of first leg sleeve frame and second leg sleeve frame is provided with annular air bag, and the inner wall of annular air bag is provided with stretch arc strip on four sides.

[0010] Preferably, the inner wall of annular air bag is provided with top fixed arc plate on four corners, and the inner wall of stretch arc strip and top fixed arc plate is provided with fit inner pad.

[0011] Preferably, the top of knee sleeve frame is provided with first elastic ring, and the bottom of knee sleeve frame is provided with second elastic ring.

[0012] Preferably, the inner wall of knee sleeve frame is provided with limiting rubber ring upwards and downwards.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The high stability air pressure knee joint is provided with knee sleeve frame, sleeve slot, top cover, top cover air bag, first leg sleeve frame, second leg sleeve frame, first gas control pump machine, second gas control pump machine, first gas pipe, second gas pipe and limiting rubber ring, so that the equipment can be used for air pressure knee joint higher stability adaptive buffering operation. In actual use, the staff first installs the knee sleeve frame in the knee joint position through the first leg sleeve frame and the second leg sleeve frame on the upper and lower ends, then synchronously starts the first gas control pump machine on the back of the first leg sleeve frame and the second leg sleeve frame, and performs adaptive inflation and deflation operation on the top cover air bag in the knee sleeve frame through the first gas pipe and the second gas pipe. Then, the top cover air bag performs adaptive buffering toping when the knee joint back in the sleeve slot moves, so that the front of the knee joint can always perform adaptive fastening buffering operation in the top cover on the side of the knee sleeve frame, and the limiting rubber rings on the upper and lower ends of the knee sleeve frame can always limit the upper and lower ends of the knee joint, preventing air pressure position deviation, and reflecting the practicability of the equipment design.

[0015] The high-stability air pressure knee joint further improves the use effect of the equipment as a whole, in the daily process, the staff can set the first leg sleeve frame and the second leg sleeve frame on the upper and lower parts of the patient's knee joint respectively, when the first air control pump machine and the second air control pump machine are started, the annular air bag inside the first leg sleeve frame and the second leg sleeve frame can also be inflated, and then the stretching arc strips on the four sides of the inner wall of the annular air bag can be matched with the top fixed arc plate on the upper and lower parts of the leg, so that the matching inner pad inside the stretching arc strip and the top fixed arc plate can be more matched and tightly connected, and the first elastic ring sleeve and the second elastic ring sleeve at the upper and lower ends of the knee sleeve frame can be used for fine adjustment of the first leg sleeve frame and the second leg sleeve frame, so that the knee joint can be better protected, and the comprehensiveness of the equipment design is embodied. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic view of the structure of the utility model;

[0017] Figure 2 It is a whole schematic view of the knee sleeve frame structure of the utility model;

[0018] Figure 3 It is a whole schematic view of the first leg sleeve frame structure of the utility model;

[0019] Figure 4 It is an enlarged schematic view of the structure of A in the utility model; Figure 1

[0020] In the figure: 1, knee sleeve frame; 2, sleeve joint groove; 3, top joint cover; 4, top joint air bag; 5, first leg sleeve frame; 6, second leg sleeve frame; 7, first air control pump machine; 8, second air control pump machine; 9, first gas pipe; 10, second gas pipe; 11, annular air bag; 12, stretching arc strip; 13, top fixed arc plate; 14, matching inner pad; 15, first elastic ring sleeve; 16, second elastic ring sleeve; 17, limiting rubber ring. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides an embodiment: ​

[0023] A high-stability air pressure knee joint, comprising a knee sleeve frame 1, a sleeve connecting groove 2 is opened in the inside of the knee sleeve frame 1, a top connecting cover 3 is fixedly connected to one end of the side surface of the knee sleeve frame 1, a top connecting air bag 4 is arranged at the other end of the inner wall of the knee sleeve frame 1, a first elastic ring sleeve 15 is arranged at the top end of the knee sleeve frame 1, a second elastic ring sleeve 16 is arranged at the bottom end of the knee sleeve frame 1, a limiting rubber ring 17 is arranged on the inner wall of the knee sleeve frame 1, the first elastic ring sleeve 15 and the second elastic ring sleeve 16 at the upper and lower ends of the knee sleeve frame 1 can be used for fine adjustment of the first leg sleeve frame 5 and the second leg sleeve frame 6 as a whole, so as to provide better protection for the knee joint.

[0024] The first leg sleeve frame 5 and the second leg sleeve frame 6, the first leg sleeve frame 5 is arranged at the top end of the knee sleeve frame 1, the second leg sleeve frame 6 is arranged at the bottom end of the knee sleeve frame 1, the first air control pump 7 and the second air control pump 8 are arranged on the back of the first leg sleeve frame 5 and the second leg sleeve frame 6, the first air conveying pipe 9 and the second air conveying pipe 10 are arranged between the first air control pump 7 and the second air control pump 8, the knee sleeve frame 1 and the second air conveying pipe 10 are in communication with the top connecting air bag 4, the annular air bag 11 is arranged on the inner wall of the first leg sleeve frame 5 and the second leg sleeve frame 6, the stretching arc strip 12 is arranged on the inner wall of the annular air bag 11, the top fixing arc plate 13 is arranged on the inner wall of the annular air bag 11, the inner wall of the stretching arc strip 12 and the top fixing arc plate 13 is provided with the close-fitting inner pad 14, the first air control pump 7 on the back of the first leg sleeve frame 5 and the second leg sleeve frame 6 is started synchronously, the first air conveying pipe 9 and the second air conveying pipe 10 between them are used for air charging and discharging operation to the top connecting air bag 4 in the inside of the knee sleeve frame 1, then the top connecting air bag 4 is used for adaptive buffer top connection when the knee joint in the sleeve connecting groove 2 moves back.

[0025] Working principle: in use, the user first puts the knee sleeve frame 1 through the first leg sleeve frame 5 and the second leg sleeve frame 6 at the upper and lower ends on the knee joint position, and then the first gas control pump 7 at the back of the first leg sleeve frame 5 and the second leg sleeve frame 6 can be started simultaneously to fill and discharge the gas in the first gas conveying pipe 9 and the second gas conveying pipe 10 to the top connecting air bag 4 inside the knee sleeve frame 1, and then the top connecting air bag 4 can adapt to the buffer top connection of the knee joint back in the sleeve groove 2, so that the front of the knee joint can always be adapted to the fastening buffer operation in the top cover 3 on the side of the knee sleeve frame 1, and the limiting rubber ring 17 at the upper and lower ends of the knee sleeve frame 1 can always be limited at the upper and lower ends of the knee joint to prevent the air pressure position from deviating, and in the daily process, the workers can set the first leg sleeve frame 5 and the second leg sleeve frame 6 on the lower legs of the patient's knee joint, and when the first gas control pump 7 and the second gas control pump 8 are started, the annular air bag 11 inside the first leg sleeve frame 5 and the second leg sleeve frame 6 can also be inflated, and then the stretching arc strip 12 on the inner wall of the annular air bag 11 can adapt to the top pressure of the four-corner top fixing arc plate 13 on the calf and thigh, so that the stretching arc strip 12 and the top fixing arc plate 13 inside the close-fitting inner pad 14 can be more adapted to the fastening connection, and the first elastic ring sleeve 15 and the second elastic ring sleeve 16 at the upper and lower ends of the knee sleeve frame 1 can be used for the fine adjustment of the first leg sleeve frame 5 and the second leg sleeve frame 6 as a whole, so as to provide better protection for the knee joint. The above is the whole working principle of the utility model.

[0026] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A high stability pneumatic knee joint comprising a knee sleeve holder (1), characterized in that: The inside of the knee sleeve frame (1) is provided with a sleeve connecting groove (2), one end of the side surface of the knee sleeve frame (1) is fixedly connected with a top connecting cover (3), and the other end of the inner wall of the knee sleeve frame (1) is provided with a top connecting air bag (4); A first leg sleeve frame (5) and a second leg sleeve frame (6) are arranged at the top end of the knee sleeve frame (1), and the bottom end of the knee sleeve frame (1) is provided with the second leg sleeve frame (6); the back of the first leg sleeve frame (5) and the second leg sleeve frame (6) are provided with a first air control pump (7) and a second air control pump (8).

2. The high stability pneumatic knee joint according to claim 1, characterized in that: The first air control pump (7) and the second air control pump (8) are provided with a first air conveying pipe (9) and a second air conveying pipe (10), and the knee sleeve frame (1) and the second air conveying pipe (10) are communicated with the top connecting air bag (4).

3. The high stability pneumatic knee joint according to claim 1, wherein: The inner wall of the first leg sleeve frame (5) and the second leg sleeve frame (6) is provided with an annular air bag (11), and the inner wall of the annular air bag (11) is provided with a stretching arc strip (12) on four sides.

4. The high stability pneumatic knee joint according to claim 3, wherein: The inner wall of the annular air bag (11) is provided with a top fixing arc plate (13) at four corners, and the inner wall of the stretching arc strip (12) and the top fixing arc plate (13) is provided with a close inner pad (14).

5. The high stability pneumatic knee joint according to claim 1, wherein: The top end of the knee sleeve frame (1) is provided with a first elastic ring sleeve (15), and the bottom end of the knee sleeve frame (1) is provided with a second elastic ring sleeve (16).

6. The high stability pneumatic knee joint according to claim 1, wherein: The inner wall of the knee sleeve frame (1) is provided with a limiting rubber ring (17) upwards and downwards.

Images