An abduction apparatus

EP4456837A4Pending Publication Date: 2025-12-31BAHCESEHIR UNIVERSITY
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Patent Information

Application Number
EP2022917054
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2021-12-27
Filing Date
2022-12-27
Publication Date
2025-12-31

AI Technical Summary

Technical Problem

Current abduction pads after total hip replacement surgery are not adjustable according to the patient's height and weight, leading to inadequate hip opening and increased risk of prosthesis dislocation, which can result in additional surgeries, prolonged hospital stays, and increased morbidity and mortality.

Method used

An adjustable abduction apparatus comprising an upper body, lower body, belts, belt bands, angle adjustment mechanism, and a waist belt, allowing for customizable length, width, and angle adjustments to maintain optimal 15°-20° hip opening, with movable gear for walking and secure fixation.

Benefits of technology

The apparatus ensures stable hip abduction and reduced risk of prosthesis dislocation by providing a customizable and ergonomic solution that maintains the recommended hip opening during walking, thereby enhancing surgical outcomes and reducing healthcare costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to an abduction apparatus (1), adjustable according to the patient's height and weight in order to keep the lower extremity opening fixed after hip replacement surgery, characterized by at least one upper body (2), at least one lower body (3), at least one belt (4) extending from the lower body (3) to surround the legs, at least one belt band (5) for securing the belt (4) to the leg, at least one button (6) placed on the upper body (2), the lower body (3) and the sides for adjusting the width and length, at least one angle adjustment mechanism (7) one end of which is connected with the left leg and the other end with the right leg and which is for adjusting the angle between the two legs and fixing it at the set angle, at least one movable gear (8) for the right and left leg side edges to move freely back and forth during walking, at least one waist belt (9) placed in the waist cavity of the patient so that the upper body (2) does not fall during walking, at least one waist belt fixing member (10) for fixing the waist belt (9).
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Description

[0001] AN ABDUCTION APPARATUS

[0002] Field of the Invention

[0003] The present invention relates to an abduction apparatus adjustable according to the patient's height and weight to keep the hip abducted after hip replacement.

[0004] Background of the Invention

[0005] Today, in parallel with the increase in musculoskeletal problems due to the prolongation of life expectancy, the number of total hip replacement (THR) surgeries is gradually increasing. Total hip replacement surgery is the replacement of a severely damaged hip with an artificial joint. It is a surgical treatment method applied for degenerative joint disease, rheumatoid arthritis, advanced ages of developmental hip dislocation and femoral neck fracture. The main purpose of the application of surgical treatment is to increase the functional level and quality of life by means of reducing pain and increasing stabilization and movement capacity.

[0006] In extreme movements that exceed the limits of the prosthesis, dislocation may occur in the prosthesis. Therefore, care should be taken against the signs of dislocation of the prosthesis. The stability / continuity of the femoral part in the acetabular socket is quite important to prevent the prosthesis dislocation. Physicians and nurses help prevent the dislocation of the prosthesis by training the patient on how to abduct the leg. In addition, a pad is placed between the legs of the patients to keep the hip in abduction after total hip replacement applications. Pads used for this purpose in clinics are generally simple. For this purpose, position pads with different features for the problem have also been developed over the years. Although the developed position pads are more effective than other pads in the hip abduction process, they do not fully meet the needs due to their lack of individual-based adjustment feature, not being easy to use, and not being ergonomic.

[0007] In the state of the art, the apparatus and pads used today after total hip replacement surgery are not adjustable according to the patient's height and weight in order to provide a gap between the lower extremities. The disadvantage of these products is that they are not formed according to a certain standard. They cannot be specifically adjusted for each individual. Since it is not adjustable according to the height and weight of the patient, difficulties are encountered in the process of use. The pads that are used are especially large for short patients and insufficient for tall patients. It is a disadvantage that hip opening cannot be achieved at the recommended 15°-20° angle. Due to this disadvantage, this product, length and width of which can be adjusted according to height and weight, is needed. In addition, pads used in clinical areas do not have the feature of being adjustable according to individual’s characteristics, adjusting the degree between the legs, standing use and movable side leg sections for standing use.

[0008] The products used today are standard and cannot be adjusted according to the height and weight of the patient. In addition, it cannot provide the recommended opening during standing and walking, in other words, it does not allow the patient's movement. In this case, the recommended 15°-20° extremity opening cannot be achieved and maintained. Failure to provide proper extremity opening after total hip replacement surgeries causes dislocation of the prosthesis, resulting in failure to achieve the expected result from the surgery, maybe a second surgery, an increase in the cost of care, longer occupation of hospital beds, and increased morbidity and mortality.

[0009] The Problems Solved with the Invention The objective of the present invention is to provide an abduction apparatus to keep the patient's lower extremity opening fixed after hip replacement surgery.

[0010] The objective of the present invention is to provide an abduction apparatus which can be adjusted according to the height and weight of the patient in order to adjust the lower extremity opening after hip replacement.

[0011] The objective of the present invention is to provide an abduction apparatus which allows the patient to walk without disrupting the lower extremity opening after hip replacement.

[0012] Detailed Description of the Invention

[0013] An abduction apparatus developed to fulfill the objective of the present invention is illustrated in the accompanying figures wherein,

[0014] Figure 1 is the perspective view of the abduction apparatus according to the invention in closed form.

[0015] Figure 2 is the perspective view of the abduction apparatus according to the invention in open form.

[0016] The components shown in the figures are each given reference numbers as follows:

[0017] 1. Abduction apparatus

[0018] 2. Upper body

[0019] 3. Lower body

[0020] 4. Belt

[0021] 5. Belt band

[0022] 6. Button

[0023] 7. Angle adjustment mechanism 8. Gear

[0024] 9. Waist belt

[0025] 10. Waist belt fixing member

[0026] An abduction apparatus (1), adjustable according to the patient's height and weight in order to keep the lower extremity opening fixed after hip replacement surgery, essentially comprises at least one upper body (2), at least one lower body (3), at least one belt (4) extending from the lower body (3) to surround the legs, at least one belt band (5) for securing the belt (4) to the leg, at least one button (6) placed on the upper body (2), the lower body (3) and the sides for adjusting the width and length, at least one angle adjustment mechanism (7) one end of which is connected with the left leg and the other end with the right leg, and which is for adjusting the angle between the two legs and fixing it at the set angle, at least one movable gear (8) for the right and left leg side edges to move freely back and forth during walking, at least one waist belt (9) placed in the waist cavity of the patient so that the lower body (3) does not fall during walking, at least one waist belt fixing member (10) for fixing the waist belt (9).

[0027] The abduction apparatus (1) of the present invention relates to being adjustable according to the height and weight of the patient in order to keep the lower extremity opening fixed after hip replacement surgery. The abduction apparatus (1) comprises at least one upper body (2).

[0028] The abduction apparatus (1) comprises at least one lower body (3). The lower body (3) is in an inverted V shape and the middle part of the lower body (3) is hollow. The edges of the lower body (3) corresponding to the legs are in the form of grooves. Therefore, the legs are easily placed on the lower body (3).

[0029] The abduction apparatus (1) comprises at least one belt (4) for surrounding the legs. The belt (4) ensures that the patient's leg and the apparatus (1) are connected. In a preferred embodiment of the invention, there are a total of six belts (4), two on the left leg and two on the right leg and one from the waist and one passing between the legs. There is a belt band (5) in order to use the belt (4) by fixing it to the leg. The belt band (5) preferably comprises an adhesive material.

[0030] The abduction apparatus (1) comprises a button (6) for adjusting and fixing the length and width of the apparatus. In the preferred embodiment of the invention, the apparatus (1) comprises 10 buttons (6). Said buttons (6) are positioned on the upper body (2), on the sides and on the lower body (3). There are integrated gear and rail systems in the mechanism of the buttons (6), and they allow the lengthening and shortening of the leg positioning apparatus (1) according to the patient's characteristics. By means of the buttons (6), the length and width of the parts where the button (6) is located are adjusted with an interlocking system. In addition, there is a lock system so that the determined dimensions do not change.

[0031] The abduction apparatus (1) comprises at least one angle adjustment mechanism (7). It enables to determine the degree of the opening between the legs in the middle part of the apparatus (1). There is preferably an angle table thereon on which the angle measurements are shown. The lock on the angle adjustment mechanism (7) enables the mechanism to be locked at the determined angle of the opening between the legs by pressing the two buttons (6) on the angle adjustment mechanism (7) simultaneously for 5 seconds.

[0032] The abduction apparatus (1) comprises at least one movable gear (8) for the right and left leg side edges to move freely back and forth during walking. The width of the upper body (2) is minimum 15 cm. Its width becomes maximum 20 cm with the button (6) thereon.

[0033] The right side length of the apparatus (1) is minimum 45 cm. Its length becomes maximum 70 cm with the button (6) thereon. It has two belt (4) connections thereon. Its length is adjusted according to the patient's height with the buttons (6) thereon.

[0034] The width of the lower body (3) is minimum 15 cm. Its width becomes maximum 46 cm with the button (6) thereon. Its width is adjusted according to the patient's weight with the buttons (6) thereon.

[0035] The left side length of the apparatus (1) is minimum 45 cm. Its length becomes maximum 70 cm with the button (6) thereon. It has two belt (4) connections thereon. Its length is adjusted according to the patient's height with the buttons (6) thereon.

[0036] The abduction apparatus (1) comprises at least one waist belt (9) placed in the waist cavity of the patient so that the lower body (3) does not fall during walking. In a preferred embodiment of the invention, there is a waist belt fixing member (10) connected with the waist belt (9), passing between the legs and providing fixation to the waist belt (9). The waist belt fixing member (10) increases the patient's connection with the apparatus (1) when the patient is standing. It is closed by means of the adhesive band thereon.

[0037] The apparatus (1) has an open and closed form. Its closed form is placed between the lower extremities of the patient. There are ten buttons (6) to provide effective extremity opening. There are integrated gear and rail systems in the mechanism of the buttons (6), and they allow the lengthening and shortening of the knee positioning apparatus according to the patient's characteristics. By using the buttons (6), the length and width of the parts where they are located are adjusted with an interlocking system. Using the buttons (6) on the upper and lower body (2,3), the width of the apparatus (1) is adjusted according to the patient's weight and the recommended hip opening of 15°-20°. The upper body (2) is minimum 15 cm and maximum 20 cm, the lower part is minimum 15 cm and maximum 46 cm. Using the buttons (6) on the right and left side, the length of the apparatus is adjusted according to the patient's height. The length of the right and left sides is minimum 45 cm and maximum 70 cm. It comprises only six belt (4) (two on the right leg and two on the left leg, and one from the waist and one passing between the legs for better fixation of the apparatus in standing use) connections which provide fixation. In the middle part of the apparatus, there is an angle adjustment mechanism (7) which allows to determine the degree of opening between the legs, on which angle measures are located, which can be adjusted and locked at the determined angle. In the process of using the apparatus (1) while standing, there is a movable gear (8) part which allows the side edges of the right and left legs to move freely back and forth during walking and which facilitates walking.

[0038] The apparatus (1) comprises at least one waist belt (9) to ensure the connection of the patient with the lower body (3) while standing. The waist belt (9) is fixed by placing it in the waist cavity. There is at least one waist belt fixing member (10) between the waist belt (9) and the lower body (3).

Claims

CLAIMS An abduction apparatus (1), adjustable according to the patient's height and weight in order to keep the lower extremity opening fixed after hip replacement surgery, characterized by- at least one upper body (2),- at least one lower body (3),- at least one belt (4) extending from the lower body (3) to surround the legs,- at least one belt band (5) for securing the belt (4) to the leg,- at least one button (6) placed on the upper body (2), the lower body (3) and the sides for adjusting the width and length,- at least one angle adjustment mechanism (7) one end of which is connected with the left leg and the other end with the right leg, and which is for adjusting the angle between the two legs and fixing it at the set angle,- at least one movable gear (8) for the right and left leg side edges to move freely back and forth during walking,- at least one waist belt (9) placed in the waist cavity of the patient so that the upper body (2) does not fall during walking,- at least one waist belt fixing member (10) for fixing the waist belt (9). An abduction apparatus (1) according to claim 1, characterized by lower body (3) whose edges on which the legs are placed are groove-shaped. An abduction apparatus (1) according to claim 1 or claim 2, characterized by at least one belt band (5) comprising adhesive material. An abduction apparatus (1) according to any of the preceding claims, characterized by at least one angle adjustment mechanism (7) comprising an8angle table which shows the angle measurements thereon for adjusting the lower extremity opening.9

Citation Information

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