Knee joint straightening exercise device for patient after total knee arthroplasty

Abstract

The utility model discloses a knee joint straightening exercise device for a patient after total knee arthroplasty, and aims to solve the problems that in the prior art, heavy objects such as sandbags or salt bags are easy to slip off when applied to knee positions, the weight of the sandbags or the salt bags is not easy to control, bruises are easy to cause if the heavy objects are too heavy, and the knee joint straightening exercise device is inconvenient to use. The technical problems that a salt bag or a sand bag is tightly wound and fixed through multiple layers of adhesive tapes or bandages, comfort is poor, complications and even local skin necrosis can occur seriously, and ice compress pain relieving and bleeding stopping operation on knee joints is troublesome are solved. The knee joint straightening exercise device comprises a base, a supporting plate is installed on the top face of the base, a sliding groove is formed in the outer surface of the supporting plate, and a lifting plate is arranged above the supporting plate. The comfort degree of the water bag pressing the legs of the patient is increased, the downward pressing force of the legs of the patient can be visually checked, and bruises caused by excessive pressure are prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical auxiliary appliance, concretely relates to a knee joint straightening exercise device for patients after total knee arthroplasty. BACKGROUND

[0002] Knee replacement is a joint replacement surgery, which is very common in orthopedic surgery. Simply put, it is to replace the damaged cartilage in the knee joint that affects the normal movement of the joint and the drum surface below it with a prosthetic component designed by man. The knee replacement surgery often encounters problems of limb extension dysfunction, which affects normal walking and overall quality of life. Therefore, it is required to perform straightening rehabilitation exercise on the knee joint of the limb after knee replacement surgery. The conventional exercise method is to apply a heavy object (such as a standard weight sandbag or salt bag) to the knee position to press the leg straight. However, the salt bag or sandbag is easy to slip off, and it is difficult to achieve the purpose of straightening the leg. Moreover, the weight of the sandbag or salt bag is not easy to control, and if the weight is too heavy, it may easily cause pressure injury, affecting the postoperative recovery of the patient. The use of multiple layers of adhesive tape or bandage to tightly fix the salt bag or sandbag causes the adhesive tape or bandage to be in close contact with the patient's leg skin, which is uncomfortable and may even cause local skin necrosis. Ice compress is needed for pain relief and hemostasis of the knee joint, which requires the adhesive tape or bandage to be unwound and the sandbag or salt bag to be removed before ice compress can be performed. Therefore, a new knee joint straightening exercise device for patients after total knee arthroplasty is designed to overcome the above technical defects. SUMMARY

[0003] (1) Technical problem to be solved

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a knee joint straightening exercise device for patients after total knee arthroplasty, which aims to solve the technical problems of the prior art, such as the easy slipping of sandbags or salt bags and other heavy objects applied to the knee position, the difficulty in controlling the weight of the sandbag or salt bag, the easy pressure injury caused by excessive weight, the use of multiple layers of adhesive tape or bandage to tightly fix the salt bag or sandbag, the poor comfort, the serious complications and even local skin necrosis, and the cumbersome operation of ice compress for pain relief and hemostasis of the knee joint.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the utility model provides a kind of full knee joint replacement postoperative patient knee joint straightening exercise device, the knee joint straightening exercise device includes base, the top surface of base is equipped with support plate, and the outer surface of support plate is equipped with sliding slot, the top of support plate is provided with lifting plate, the outer surface of lifting plate is equipped with support, and support is slidably installed in the inside of sliding slot, the outer surface of support is equipped with screw hole, screw hole is threadedly connected with screw rod, and the bottom end of screw rod is rotatably connected with base, the lower portion of lifting plate is provided with pressing plate, and pressure sensor is arranged between pressing plate and lifting plate, and the both ends of pressure sensor are fixedly connected with the outer surface of pressing plate and lifting plate, the top surface of lifting plate is equipped with display, and pressure sensor is electrically connected with display, the bottom surface of pressing plate is fixedly connected with water bag, and connecting head is installed through the outer surface of water bag, and valve is installed through the outer surface of connecting head, the outer surface of lifting plate is equipped with positioning hole, the top surface of pressing plate is fixedly connected with positioning column, and positioning column is slidably installed in the inside of positioning hole.

[0007] When the knee joint straightening exercise device of the present technical solution is used, ice water is injected into the water bag through the connecting head to close the valve and seal, so that the patient can conveniently perform ice compress treatment, the patient's leg is placed below the water bag on the base, then the screw rod is rotated, the handle is rotated in the screw hole to drive the lifting plate to descend, the lifting plate descends with the pressure sensor, the pressing plate and the water bag, the water bag descends and presses on the patient's leg, the ice water in the water bag performs ice compress analgesic operation on the patient's leg, and in the soft state and the ice water fluid state of the water bag, the water bag is shaped according to the change of the patient's leg, the comfort degree of the water bag pressing on the patient's leg is increased, the lifting plate descends with the pressure sensor, the pressing plate and the water bag, the water bag is in contact with the patient's leg, the pressure sensor between the lifting plate and the pressing plate is compressed on the display to display the pressure, the pressure of the patient's leg is directly observed, and pressure injury is prevented due to excessive pressure.

[0008] Preferably, the outer surface of the support is provided with a limiting hole, a limiting column is slidably installed in the inside of the limiting hole, and the bottom end of the limiting column is fixedly connected with the top surface of the base. By the setting of the limiting column and the limiting hole, the positioning of the support is realized, and the stability of the support is increased.

[0009] Further, the top surface of the base is fixedly connected with a soft pad, and the material of the soft pad is silica gel. By the setting of the soft pad, the patient's leg is placed on the soft pad, and the comfort degree of the patient's leg when placed is increased.

[0010] Further, the outer surface of the base is fixedly connected with an arc-shaped baffle. By the setting of the arc-shaped baffle, the patient's leg placed on the base is blocked, and the patient's leg is prevented from sliding and separating from the base.

[0011] Further, the top end of the screw rod is fixedly connected with a handle, and the outer surface of the handle is sleeved with an anti-skid sleeve. Through the handle and the anti-skid sleeve, the screw rod is convenient to rotate, and the problem of hand slipping when the user rotates the screw rod is prevented.

[0012] (3)Beneficial effects

[0013] Compared with the prior art, the beneficial effects of the utility model lie in:

[0014] The utility model discloses a connecting head injects ice water into the water bag and closes the valve seal, and patients are convenient to carry out ice compress treatment, the patient's leg is placed below the water bag on the pedestal, then rotates the screw rod, the handle rotates in the screw hole and drives the lifting plate to descend, the lifting plate descends and takes down the pressure sensor, the pressing plate and the water bag, the water bag is pressed on the patient's leg, and the ice water in the water bag carries out ice compress analgesic operation on the patient's leg, under the water bag soft state and ice water fluid state, the water bag is shaped according to the patient's leg change shape and is shaped, the comfort degree when the water bag is pressed on the patient's leg is increased, the lifting plate is lowered and takes down the pressure sensor, the pressing plate and the water bag, the water bag is in contact with the patient's leg, the pressure sensor is compressed on the display and shows the pressure between the lifting plate and the pressing plate, the patient's leg is directly viewed and the pressure degree is directly viewed, and the pressure injury is prevented due to excessive pressure. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic view of the knee joint straightening exercise device of the utility model;

[0016] Figure 2 It is the three-dimensional structure schematic view of the knee joint straightening exercise device of the utility model;

[0017] Figure 3 It is the three-dimensional structure schematic view of the knee joint straightening exercise device of the utility model;

[0018] Figure 4 It is the three-dimensional structure schematic view of the knee joint straightening exercise device of the utility model;

[0019] Figure 5 It is the three-dimensional structure schematic view of the knee joint straightening exercise device of the utility model;

[0020] Figure 6 It is the three-dimensional structure schematic view of the knee joint straightening exercise device of the utility model; Figure 1 It is the three-dimensional structure schematic view of the knee joint straightening exercise device of the utility model;

[0021] The marks in the drawings are: 1, base; 2, soft pad; 3, water bag; 4, arc baffle; 5, positioning hole; 6, pressing plate; 7, lifting plate; 8, positioning column; 9, support; 10, limiting column; 11, wire hole; 12, lead screw; 13, handle; 14, limiting hole; 15, display; 16, support plate; 17, sliding groove; 18, pressure sensor; 19, connector; 20, valve. DETAILED DESCRIPTION

[0022] The specific embodiment is a knee joint straightening exercise device for patients after total knee arthroplasty, and its structural schematic diagram is shown in the figure. Figures 1-6 The knee joint straightening exercise device includes a base 1, the top surface of the base 1 is provided with a support plate 16, the outer surface of the support plate 16 is provided with a sliding groove 17, the upper side of the support plate 16 is provided with a lifting plate 7, the outer surface of the lifting plate 7 is provided with a support 9, the support 9 is slidingly installed in the inside of the sliding groove 17, the outer surface of the support 9 is provided with a wire hole 11, the inside of the wire hole 11 is threadedly connected with a lead screw 12, the bottom end of the lead screw 12 is rotationally connected with the base 1, the lower side of the lifting plate 7 is provided with a pressing plate 6, a pressure sensor 18 is arranged between the pressing plate 6 and the lifting plate 7, the two ends of the pressure sensor 18 are fixedly connected with the outer surfaces of the pressing plate 6 and the lifting plate 7, the top surface of the lifting plate 7 is provided with a display 15, the pressure sensor 18 is electrically connected with the display 15, the bottom surface of the pressing plate 6 is fixedly connected with a water bag 3, the outer surface of the water bag 3 is penetratedly installed with a connector 19, the outer surface of the connector 19 is penetratedly installed with a valve 20, the outer surface of the lifting plate 7 is provided with a positioning hole 5, the top surface of the pressing plate 6 is fixedly connected with a positioning column 8, and the positioning column 8 is slidingly installed in the inside of the positioning hole 5.

[0023] The outer surface of the support 9 is provided with a limiting hole 14, the inside of the limiting hole 14 is slidingly installed with a limiting column 10, and the bottom end of the limiting column 10 is fixedly connected with the top surface of the base 1. Through the arrangement of the limiting column 10 and the limiting hole 14, the positioning of the support 9 is realized, and the stability of the support 9 is increased. The top surface of the base 1 is fixedly connected with a soft pad 2, and the material of the soft pad 2 is silica gel. Through the arrangement of the soft pad 2, the patient's leg is placed on the soft pad 2, and the comfort of the patient's leg when placed is increased. The outer surface of the base 1 is fixedly connected with an arc baffle 4. Through the arrangement of the arc baffle 4, the patient's leg placed on the base 1 is blocked, and the patient's leg is prevented from sliding and separating from the base 1.

[0024] In addition, the top end of the lead screw 12 is fixedly connected with a handle 13, and the outer surface of the handle 13 is sleeved with an anti-skid sleeve. Through the arrangement of the handle 13 and the anti-skid sleeve, the rotation of the lead screw 12 is facilitated, and the problem of hand slipping when the user rotates the lead screw 12 is prevented.

[0025] Working principle: when the knee straightening exercise device of the technical scheme is used, ice water is injected into the water bag 3 through the connecting head 19, the valve 20 is closed and sealed, the patient is facilitated to perform ice compress treatment, the patient's leg is placed below the water bag 3 on the base 1, then the lead screw 12 is rotated, the handle 13 is rotated inside the lead hole 11 to drive the lifting plate 7 to descend, the lifting plate 7 descends with the pressure sensor 18, the pressing plate 6 and the water bag 3, the water bag 3 descends and presses on the patient's leg, the ice water in the water bag 3 performs ice compress analgesic operation on the patient's leg, under the soft state and the ice water fluid state of the water bag 3, the water bag 3 is shaped according to the change of the patient's leg, the comfort degree when the water bag 3 presses on the patient's leg is increased, the lifting plate 7 descends with the pressure sensor 18, the pressing plate 6 and the water bag 3, the water bag 3 is in contact with the patient's leg, the pressure sensor 18 between the lifting plate 7 and the pressing plate 6 is compressed on the display 15 to display the pressure, the pressure of the patient's leg is directly viewed, and the pressure injury caused by excessive pressure is prevented.

[0026] All the technical features in the embodiment can be freely combined according to actual needs.

[0027] The above embodiment is a preferred implementation scheme of the utility model, in addition, the utility model can be realized in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A device for post total knee arthroplasty patient knee extension exercises, the device comprising a base (1), characterised in that: The top surface of the base (1) is provided with a support plate (16), and the outer surface of the support plate (16) is provided with a sliding groove (17); the upper portion of the support plate (16) is provided with a lifting plate (7), and the outer surface of the lifting plate (7) is provided with a support (9) which is slidingly installed in the sliding groove (17); the outer surface of the support (9) is provided with a screw hole (11), and the screw hole (11) is threadedly connected with a lead screw (12) whose bottom end is rotatably connected with the base (1); the lower portion of the lifting plate (7) is provided with a pressing plate (6), and a pressure sensor (18) is arranged between the pressing plate (6) and the lifting plate (7); the outer surfaces of the two ends of the pressure sensor (18) are fixedly connected with the pressing plate (6) and the lifting plate (7), respectively; and the top surface of the lifting plate (7) is provided with a display (15) which is electrically connected with the pressure sensor (18).

2. A post-total knee arthroplasty patient knee extension exercise device according to claim 1, wherein: The bottom surface of the pressing plate (6) is fixedly connected with a water bag (3), and the outer surface of the water bag (3) is penetratingly provided with a connecting head (19) which is penetratingly provided with a valve (20) on the outer surface.

3. A post-total knee arthroplasty patient knee extension exercise device according to claim 2, wherein: The outer surface of the support (9) is provided with a limiting hole (14), and the limiting hole (14) is slidingly installed with a limiting column (10) whose bottom end is fixedly connected with the top surface of the base (1).

4. A post-total knee arthroplasty patient knee extension exercise device according to claim 3, wherein: The top surface of the base (1) is fixedly connected with a soft pad (2) which is made of silica gel.

5. A post-total knee arthroplasty patient knee extension exercise device according to claim 4, wherein: The outer surface of the lifting plate (7) is provided with a positioning hole (5), and the top surface of the pressing plate (6) is fixedly connected with a positioning column (8) which is slidingly installed in the positioning hole (5).

6. A post-total knee arthroplasty patient knee extension exercise device according to claim 5, wherein: The outer surface of the base (1) is fixedly connected with an arc-shaped baffle (4).

7. A post-total knee arthroplasty patient knee extension exercise device according to claim 6, wherein: The top end of the lead screw (12) is fixedly connected with a handle (13), and the outer surface of the handle (13) is sleeved with an anti-skid sleeve.

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