CN203724415U - Artificial lower limb passive motion device - Google Patents

Abstract

The utility model discloses an artificial lower limb passive motion device which comprises a base, a movable pedal, aluminum-alloy rails and a pulley. The aluminum-alloy rails are fixedly arranged on the base, and the pulley is fixedly arranged on the lower portion of the movable pedal and embedded in the aluminum-alloy rails. The artificial lower limb passive motion device can be used for function practices of patient after knee arthroplasty, integrates the advantages of electric CPM and unarmed function practices, fully arouses the enthusiasm of function practices of patients, can be used for joint bend and stretch practices on the basis of self control, and has the advantages of being safe and simple in operation method, flexible in function practice time, economical and practical, and the like.

Description

Artificial Lower Limb Passive Mobility Device

technical field

The utility model relates to the technical field of joint rehabilitation medical equipment, in particular to an artificial lower limb passive mover.

Background technique

With the improvement of people's living standards, the prolongation of life expectancy and the gradual increase in the proportion of elderly people, the replacement rate of knee joints is bound to increase. After knee replacement, the main clinical manifestations are pain and limited flexion and extension of the knee joint, and the degree of flexion and extension of the knee joint directly reflects the effect of the operation. At present, some clinical experts advocate the use of electric lower limb mobilizers (electric CPM) for flexion exercises after surgery. Electric CPM gradually "softens" the sticky and stiff knee joint through reciprocating, multiple, and continuous passive flexion and extension, and finally reaches a normal range of motion. In the development of joint surgery for more than 40 years, it has played a very important role. However, with the advancement of the concept and technology of joint surgery, experts have found that electric CPM is easy to cause knee joint pain, swelling and bleeding in the joint cavity, which will seriously It affects postoperative rehabilitation and joint function recovery, and is not suitable for early functional exercise after knee replacement. Some experts advocate the use of bare hands for knee flexion and extension exercises, but the purpose is not strong, and patients are not active in exercising due to postoperative pain, large trauma, and a long time for knee bandaging.

Utility model content

In order to solve the above problems, the applicant designed an artificial lower limb passive mover (artificial CPM) on the basis of electric CPM and manual exercise. Artificial CPM requires the cooperation of multiple organs such as the patient's eyes, hands, and feet, and the whole body exercise while bending the knee joint, which fully mobilizes the compliance of the patient's functional exercise; at the same time, the patient can control the bending angle of the knee joint and the degree of exercise. Time, preventing joint damage caused by excessive angle, excessive exercise time, etc.

The purpose of this utility model is achieved by the following scheme:

The lower limb passive mover described in the utility model includes a base and a pedal, and the base is provided with an aluminum alloy track; the pedal includes a base plate, a pedal and a pulley; one side of the pedal is movable Installed on the upper surface of the bottom plate, it can rotate around the contact point with the bottom plate; the bottom plate is installed on the aluminum alloy track through pulleys, and can perform linear feed motion along the aluminum alloy track; the pedal is equipped with With grip strap.

The side of the side where the pedal is in contact with the bottom plate is designed as a slope, which can rotate around the center of the circle within the range of 0-120°.

The pedal is installed on the upper surface of the bottom plate through a hinge.

The purpose of this utility model can be further realized by following scheme:

The width of the base is 20-40cm, and the length is 60-90cm.

The width of the bottom plate is 20-40cm, and the length is 25-40cm.

The width of described pedal is 20-40cm, and length is 15-25cm.

The utility model can be used for functional exercise for patients after knee joint replacement. It integrates the advantages of electric CPM and manual functional exercise, fully mobilizes the enthusiasm of patients for functional exercise, and can perform joint flexion and extension exercises on the basis of self-control. The utility model has the advantages of safe and simple operation method, flexible time for functional exercise, economical and practical, and the like.

When in use, the patient places the operated limb on the pedal, pulls the grip belt, pulls the pedal to rotate to an appropriate angle, and then uses the action of the bottom plate pulley to make the whole pedal slide forward and backward, and can easily bend the knee joint to the required position. At the same time, you can control the time of exercise at will, without the help of others, to achieve twice the result with half the effort.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, specifically set forth the embodiment of the present utility model

Example 1

As shown in Figure 1, the lower limb passive mover includes a base 1 and a pedal 2, and the base 1 is provided with an aluminum alloy track 3; the pedal 2 includes a base plate 4, a pedal 5 and a pulley 6; One side of the pedal 5 is movably mounted on the upper surface of the base plate 4, and can rotate around the contact point with the base plate 4; the base plate 4 is installed on the aluminum alloy track 3 through a pulley 6, and can be moved The alloy track 3 performs linear feed movement; the pedal 5 is provided with a grip belt 7 .

The side of the side of the pedal 5 in contact with the bottom plate 4 is designed as a slope, which can rotate around the center of the circle within the range of 0-120°. the

The pedal 5 is mounted on the upper surface of the base plate 4 through a hinge 8 .

The width of described base 1 is 20cm, and length is 60cm.

The width of described base plate 4 is 20cm, and length is 25cm.

The width of described pedal 5 is 20cm, and length is 15cm.

The usage method of this embodiment is as follows:

When in use, the patient places the operated limb on the pedal 5, pulls the grip belt 7, pulls the pedal 5 to rotate to an appropriate angle, and then uses the action of the pulley 6 under the bottom plate 4 to make the entire pedal 2 slide back and forth, which can be easily The knee joint can be bent to the desired angle, and at the same time, the exercise time can be controlled at will, without the help of others, so as to achieve twice the result with half the effort.

Example 2

Example 1

As shown in Figure 1, the lower limb passive mover includes a base 1 and a pedal 2, and the base 1 is provided with an aluminum alloy track 3; the pedal 2 includes a base plate 4, a pedal 5 and a pulley 6; One side of the pedal 5 is movably mounted on the upper surface of the base plate 4, and can rotate around the contact point with the base plate 4; the base plate 4 is installed on the aluminum alloy track 3 through a pulley 6, and can be moved The alloy track 3 performs linear feed movement; the pedal 5 is provided with a grip belt 7 .

The side of the side of the pedal 5 in contact with the bottom plate 4 is designed as a slope, which can rotate around the center of the circle within the range of 0-120°. the

The pedal 5 is mounted on the upper surface of the base plate 4 through a hinge 8 .

The width of described base 1 is 40cm, and length is 90cm.

The width of described base plate 4 is 40cm, and length is 40cm.

The width of described pedal 5 is 40cm, and length is 25cm.

The usage method of this embodiment is as follows:

When in use, the patient places the operated limb on the pedal 5, pulls the grip belt 7, pulls the pedal 5 to rotate to an appropriate angle, and then uses the action of the pulley 6 under the bottom plate 4 to make the entire pedal 2 slide back and forth, which can be easily The knee joint can be bent to the desired angle, and at the same time, the exercise time can be controlled at will, without the help of others, so as to achieve twice the result with half the effort.

Example 3

Case 1: Yu Xzhen, female, 67 years old, hospital number 227168, a retired employee of a hospital in Guangxi, was admitted to the hospital due to repeated pain in the right knee joint and limited mobility. On October 18, 2010, the right knee replacement was performed under general anesthesia. On the basis of routine treatment and nursing after the operation, artificial CPM was used to perform knee joint flexion and extension exercises. He was cured and discharged 14 days after the operation. The knee joint HSS score was 45 points before operation, and the HSS score was 85 points before discharge. The operation effect was satisfactory.

Case 2: Lei Xhua, female, 75 years old, a retired employee of a certain railway hospital in Guangxi, hospital number 346688, was admitted to the hospital due to recurrent bilateral knee joint pain and limited mobility. On October 20, 2010, the right knee joint replacement was performed under general anesthesia. On the basis of routine treatment and nursing after the operation, artificial CPM was used to perform knee joint flexion and extension exercises. The preoperative knee joint HSS score was 45 points, and the HSS score before discharge was 90 points, the operation effect is satisfactory.

Case 3: Zheng Xlian, female, 64 years old, hospital number 364345, who lives in Beizhan Road, Liuzhou City, was admitted to the hospital due to repeated pain in the left knee joint and limited mobility. On May 14, 2011, the left knee joint replacement was performed under general anesthesia. On the basis of routine treatment and nursing after the operation, artificial CPM was used to perform knee joint flexion and extension exercises. He was cured and discharged 14 days after the operation. The knee joint HSS score was 40 before operation and 86 before discharge. The operation effect was satisfactory.

Case 4: Liao Xmin, male, 73 years old, hospital number 377579, a retired employee of a cultural and sports bureau in Guangxi, was admitted to the hospital due to repeated bilateral knee pain and limited mobility. On October 15, 2011, double knee joint replacement was performed under general anesthesia. On the basis of routine treatment and nursing after surgery, artificial CPM was used to perform knee joint flexion and extension exercises. He was cured and discharged 14 days after surgery. Before operation, the HSS score of the left knee joint was 45 points on the left side, and 35 points on the right side; before discharge, the HSS score on the left side was 83 points, and the HSS score on the right side was 86 points. The operation effect was satisfactory.

Claims (6)

1. A passive activity device for lower limbs, comprising a base (1) and a pedal (2), characterized in that: the base (1) is provided with an aluminum alloy track (3); the pedal ( 2) Including the base plate (4), pedal (5) and pulley (6); one side of the pedal (5) is movably installed on the upper surface of the base plate (4), and can be The center of the circle rotates; the bottom plate (4) is installed on the aluminum alloy track (3) through the pulley (6), and can perform linear feed motion along the aluminum alloy track (3); the pedal (5) is provided with With grip strap (7). 2. The lower limb passive activity device according to claim 1, characterized in that: the side of the side of the pedal (5) in contact with the bottom plate (4) is designed as a slope, which can surround the center of the circle at 0-120° Rotate within the range. 3. The passive movement device for lower limbs according to claim 1, characterized in that: the pedal (5) is installed on the upper surface of the bottom plate (4) through a hinge (8). 4. The lower limb passive movement device according to claim 1, characterized in that: the base (1) has a width of 20-40cm and a length of 60-90cm. 5. The lower limb passive movement device according to claim 1, characterized in that: the width of the bottom plate (4) is 20-40cm, and the length is 25-40cm. 6. The lower limb passive movement device according to claim 1, characterized in that the pedal (5) has a width of 20-40 cm and a length of 15-25 cm.