A positioning device for measuring the foot and ankle orthosis.

TR202505030A3Pending Publication Date: 2026-06-22T C ISTANBUL MEDIPOL UNIVERSITESI
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Patent Information

Application Number
TR202505030
Authority / Receiving Office
TR · TR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-06-22

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Abstract

This invention relates to a positioning device (10) that enables measurement and practical, cost-effective measurement and positioning for foot-ankle orthoses, including patients with contracture or spasticity. With this invention, the shortcomings of the methods used in the current technique when taking measurements in AFO production will be eliminated, and more effective, error-free and convenient measurement will be provided. In addition, a positioning device (10) has been developed that can position the ankle joint at the desired angle, thus ensuring optimal patient-orthosis fit.
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Description

1 TARIFF A positioning device for measuring the foot and ankle orthosis. Technical Area This invention is suitable for foot and ankle orthoses, including for patients with contractures or spasticity. taking measurements from each patient and providing practical, cost-effective measurement methods and 5 It relates to a positioning device that enables positioning. State of the Art Orthotics aim to improve the performance of limbs that have partially or completely lost their function and to provide more These are devices implanted in the body to make the body usable. In cases of body deformities, It is frequently used for corrective purposes in pathologies and musculoskeletal diseases. 10 An ankle-foot orthosis (AFO) supports the ankle and foot area, protecting the ankle joint. It increases stability and provides balance during walking. AFOs are the most frequently prescribed, application They are among the orthoses with the widest range of applications in treatment centers. The orthosis manufacturing process begins with taking measurements of the patient's limb and creating a model of it. There are different methods for taking limb measurements. The most commonly used method is 15 This is the plaster cast impression method, also described as the traditional method. In this method, 3 / 4 of the patient's limb is measured. Before a 2D model is created, the limb is measured using a plaster cast, and a 2D model is obtained. This is done. Then, the inside of this model is filled with plasterboard to create a 3D model. After the necessary correction process, called modeling, is performed on the resulting model, orthosis production begins. The process begins. The selected plastic is heated in the oven until it reaches the desired temperature, then processed. 3 20 The process of capturing the design is done on a three-dimensional model. After this stage, the plastic is extracted using a milling machine. Corrections and final touches are made, and the orthosis is completed. Another measurement method... This method involves taking measurements using laser scanning systems. In this method, the patient's limb is measured using a laser scanning device. The images and numerical data of the patient's limb are processed in a computer environment to create the orthosis. The design is made. After the orthosis design is completed, the measurements are sent to the CNC machine and the limb is 3 25 A three-dimensional model is obtained. The necessary correction process, called modeling, is then performed on the obtained model. After this, the orthosis production process begins. The selected plastic is heated in an oven until it reaches the desired temperature. After arrival, a photocopying process is performed on the processed 3D model. Following this stage, the milling process begins. The plastic, which is processed using a machine, undergoes corrections and final touches, and the orthosis is completed. 2 Although these two measurement methods are the two main methods used today, they also have disadvantages. It is located. In plaster cast measurement, joint angle is determined or the limb is adjusted in the presence of contracture or spasticity. It is not possible to position it in that position, which necessitates further adjustments during the production of the orthosis. This causes difficulties. Laser scanning systems, on the other hand, are expensive. 5 This system is not available in many clinics. Measurements can also be taken using this system when contracture or spasticity is present. There are limitations. The inability to take accurate or desired measurements can affect the orthosis production process. This negatively affects patient compliance and success. Ankle and foot orthoses produced using traditional manufacturing methods are used for lower extremity pathologies and It is the gold standard in the treatment of deformities and offers the advantage of personalized prescriptions. 10 Traditional custom-made ankle and foot orthoses are made by taking a plaster cast impression of the patient's leg and The product is obtained through plastic extrusion after corrections are made to the model. However, making the mold and producing the finished product takes up a lot of time for the orthotician to work on the orthosis. It is a long and delicate process that requires expenditure and can lead to excessive waste. Laser scanning This method of taking measurements is more practical than the plaster cast method, however, when taking measurements from the patient's body, 15 the patient must maintain a stable position, and the lighting in the room where the measurements are taken must be adequate. Obstructing the laser beams is a disadvantage and limitation of this method. Its cost... Due to the large number of applications, laser scanning is not available at every treatment center. Furthermore, not every... In both measurement methods, the presence of contracture or muscle spasm in the ankle joint or in cases where joint movement is restricted, it is not possible to obtain optimal measurements. 20 There is a possibility of deviations from the measurement. In the patent document numbered CN111000329A, which is in the known state of the art, a three-dimensional, The text discusses an adaptive positioning device and its usage method. However, Apart from positioning the patient's ankle, AFO measurement and mold creation. It has no function for this. 25 Brief Description of the Invention The aim of this invention is to eliminate the shortcomings of the methods used when taking measurements in AFO production. a more effective, error-free and convenient way to take measurements The goal is to develop a positioning device. 3 Another aim of the invention is to improve ankle joint movement in the presence of contracture or spasticity. The goal is to ensure that the orthosis measurements are transferred to the correct size. Another aim of the invention is to enable the ankle joint to be positioned at the desired angle, thus The goal is to develop a positioning device that provides optimal patient-orthosis fit. Figure Description 5 Figure 1: A side view of an application of the device that is the subject of the invention. Explanation of References in Figures To better understand the invention, the corresponding numbers in the figures are given below: 10. Positioning device 10 1. Rear part 2. Front part 3. Spring lock system 4. Pneumatic system Detailed Description of the Invention 15 The subject of the invention is the positioning device (10); at least one rear part (1), at least one front part (2), joint At least one user interface where the angle is displayed and the desired adjustments are made, joint It includes an angular sensor that measures the angle, thus determining the desired ankle joint position. The device allows adjustment, monitoring of the joint angle and corresponds to the (10) ankle joint. positioned in the future part, positioned in both the rear part (1) and the front part (2) 20 a device that precisely creates the adjusted joint angle and, once adjusted, locks itself into place. at least one spring lock system (3) that prevents movement and creates air pressure inside the device (10), Heating by blowing air at predetermined temperatures and for a predetermined duration. It performs cooling functions and, depending on whether it is in the open or closed position, uses compressed air. at least one pneumatic system (4) and 25 which includes at least one valve allowing or preventing flow. The device (10) contains at least one battery, preferably rechargeable, which provides energy for its operation. The back piece (1) and the front piece (2) can be positioned inside the device (10) for a patient's leg. It is designed in this way. The rear part (1) and the front part (2) are joined together to complement each other. 4 and is designed to be opened from at least one side. The opening part is preferably made of silicone. It is combined. Preferably the front part (2) is designed as an openable cover. The patient can open it. He places his foot on the foot part of the device (10) through the cover part and the cover closes. The rear part (1) of the device (10) must be made of at least one thermoplastic that can be shaped at an average temperature of 40-45 degrees. After the band (e.g., Orficast) material is adjusted to the patient's limb measurements, the back piece (1) 5 It is designed to be placed on the inner part that will come into contact with the patient's leg. The pneumatic system (4) performs the functions of heating and cooling the thermoplastic tape material. This way, it transfers the leg measurement to the material. The operation of the pneumatic system (4) is preferably as follows: The pneumatic system (4) has at least one cylinder It contains at least one piston. Using air pressure, a piston inside a cylinder 10 This movement causes a piston to move forward or backward inside the cylinder. This causes a force to be generated. This force is applied to a connection point at the outlet of the cylinder. And from this point, mechanical movements are performed. These mechanical movements are sequentially preceded by... Air at a specified temperature is blown into the device (10) for a predetermined period of time. It applies a predetermined force. Afterwards, another predetermined 15 is applied for cooling purposes. It applies air at a certain temperature. Then, thanks to the temperature mechanism, the air cools down and The thermoplastic tape material is made rigid. Here, temperatures, time, and force are important factors; The temperature and time required for the material to take shape are determined accordingly. The subject of the invention is the positioning device (10), rear part (1) made of rigid composite material and semi-rigid It includes a front part (2) made of material. The rigid material is preferably carbon composite. Carbon 20 It is created by adding harder materials to the material. Maintaining the given position for measurement. This provides a semi-rigid material that is transparent, easily moldable, flexible, and low molecular weight. It is a material, preferably ThermoLyn Trolen, a product of the Ottobock company. It is thin, semi-thin. It is a flexible material. It allows the foot shape to be positioned in the front part (2). In one application of the invention, the user interface is in the form of a mobile application. Joint 25 for the patient. Adjustment of the angle, monitoring of the pneumatic system (4) while operating the air pressure and temperature The settings are made through this application. The device (10) communicates with the mobile application. It includes a communication unit that provides wireless communication. In one application of the invention, the device (10) includes an indicator on the spring locking system (3). This indicator shows the ankle joint angle, making it easier to track the angle. It also shows the foot... This also makes it possible to position the wrist at the desired angle. The operating method of the device (10) includes the following steps: - Taking the patient's leg measurements, applying thermoplastic band material suitable for the measurements. 5 cutting and placing the material into the back part (1), - Afterwards, the patient's leg is placed into the back part (1) and the front part (2) closure, - Depending on the degree of contracture or spasm in the patient, the ankle joint is treated beforehand. via the user interface at the specified angle, through the spring-loaded system (3) 10 adjustment and / or at the same time preferably kdldt sdstemdndn (3) üzerdndekd The angle is determined by the indicator, (This may result in incorrect grading. The degree of inclination is a BDR approach, and it involves straining or incorrect movements in the joint. (This largely obstructs the visibility of the positioning.) - After the patient's ankle was brought to the supported degree, the pneumatic system measured (4) 15 almak dçdn aktdf hale getdrdlmesd, - By creating pressure inside the pneumatic system (4) device (10), the leg position ensuring its protection and immobility, - After this stage is completed, the pneumatic system (4) rear part (1) is pre-installed. By heating the material placed there to a specified temperature, it causes the material to heat up, 20 The heated material, along with the air pressure inside, also affects the shape of the patient's leg. to receive, - By switching to cooling from the pneumatic system (4) to a predetermined temperature of the material to allow it to cool and to protect the leg shape given inside, - After this stage, the pneumatic system (4) is deactivated, the front part (1) 25 opening and removal of the device (10) from the patient’s leg, - Removal of the material located in the back piece (1) and thus the patient Taking the leg measurement. 6 This invention has turned all the disadvantages of the traditional plaster measurement method into advantages. Thanks to the positioning device (10), the subject is more accurate and effortless, and also orthosis Measurements will be taken in accordance with biomechanical principles. Industrial Applicability of the Invention This invention is suitable for foot and ankle orthoses for patients with contractures or spasticity, including 5 taking measurements from each patient and providing practical, cost-effective measurement services. It relates to a positioning device (10) which provides positioning and is applicable to industry. This invention is of a nature that applies to state institutions with orthotics and prosthetics application centers and orthotics and prosthetics workshops. It is a device that can be used in hospitals (10). The invention is not limited to the above descriptions; a person skilled in the field can easily identify 10 different versions of this invention. They can present applications. These fall within the scope of the protection sought by the invention through claims. It should be evaluated. 20

Claims

7 REQUESTS 1. Foot - including patients with foot or ankle joint contractures or spasticity. taking measurements from each patient and taking measurements at a practical, cost-effective rate. To ensure proper positioning; the patient's leg is inside the device (10). 5 designed to be positioned in such a way as to complement each other and at least a back piece designed to be opened by at least bdr (1) and at least bdr front part (2), operation of cdhaz (10) at least bdr battery providing dçdn energy, joint angle At least one user interface where the displayed and supported settings are made, additional The BDR angular sensor measures the angle, thus determining the position of the foot joint. adjustable joint angle, which provides the device (10) foot joint. positioned on the corresponding part, both on the rear part (1) and the front part (2) by positioning and adjusting the joint angle, it creates the exact angle and after adjustment at least one spring-loaded system (3) and device (10) that prevents joint movement. creating air pressure inside, at predetermined temperatures and at predetermined A heating and cooling system that performs heating and cooling functions by blowing air for a period of time, and is open or closed. The device that, when in the closed position, allows or prevents the flow of compressed air. at least bdr valve containing at least bdr pneumatdk sdstem (4) characterXze edXlen bdr Positioning device (10).

2. At least bdr sdldnddr dçerdsdnde at least bdr pdston dçeren, using air pressure bdr sdldnddr dçerdsdnde bdr pdston hareketd gerçektdren, bu hareketdn sdldnddr dçerdsdnde bdr pdstonu dlerd 20 or by moving it back and forth, it causes a force to be generated, and this force is derived from... It is applied to the BDR connection point at the exit and mechanical movements occur from this point. The movements performed in this mechanical system occur sequentially at a predetermined temperature. air cdhaza (10) for a predetermined period of time with a predetermined force applied, then for cooling purposes, air at a different, predetermined temperature was introduced at 25°C. The bdr pneumatic system (4) which it applied, is characterized by the system 1'dekd gdbd bdr Positioning device (10).

3. At least one thermoplastic tape material that can take shape at an average temperature of 40-45 degrees. After being adjusted according to the patient's limb measurements, the back piece (1) is placed on the patient's leg. rear piece (1) and 30 designed to be placed in the part that will make contact with the d. 8 pneumatic system (4) which performs heating and cooling functions from thermoplastic tape material. dçermesdyle karakterXze edXlen dstem 1 or 2'dekd gdbd bdr pozdsyonlama cdhazı (10).

4. On the spring-loaded system (3), the angle of the foot joint is shown and the angle is shown. Any of the above-mentioned systems characterized by the BDR indicator content that facilitates it. bdrdndekd gdbd bdr positioning device (10). 5 5. Rear part (1) made of composite material and front part (2) made of semi-composite material dçermesdyle karakterXze edXlen üstükd dstemlerden herhangd bdrdndekd gdbd bdr Positioning device (10).

6. Characterized by being a carbon composite from the material Rdjdt, the system 5'tekd gdbd bdr Positioning device (10). 10 7. Adjustment of the patient's dkdn joint angle, takdbd, pneumatic system (4) while operating air in a modular application where the adjustment of pressure and temperature is done through operations the user interface and mobile application communicate wirelessly. The communication system provided by bdr, characterized by its inclusion in bdrdmd, is one of the systems described above. any positioning device (10). 15 8. The positioning device (10) characterized by the following steps is working method: - Taking the patient's leg measurements and selecting a thermoplastic band material that matches the measurements. cutting and placing the material into the back part (1), - Afterwards, the patient's leg is placed into the back part (1) and the front part 20 (2) closure, - Depending on the degree of contracture or spasm in the patient, the ankle joint is treated beforehand. via the user interface through the spring-loaded system (3) at the specified angle adjustment and / or the angle from the indicator on the kdldt sdstemdndn (3) to be done, 25 - After the patient's ankle is brought to the supported degree, the pneumatic system (4) measures almak dçdn aktdf hale getdrdlmesd, - By creating pressure inside the pneumatic system (4) device (10), the leg position ensuring its protection and immobility, - After this stage is completed, the rear part (1) of the pneumatic system (4) is pre-installed 30 heating the material placed there to a specified temperature, causing it to heat up 9 The heated material, along with the air pressure inside, also affects the shape of the patient's leg. to receive, - By switching to cooling from the pneumatic system (4) to a predetermined temperature of the material to allow it to cool and to protect the leg shape given inside, - After this stage, the pneumatic system (4) is deactivated, the front part (1) 5 opening and removal of the device (10) from the patient’s leg, - Removal of the material located in the back piece (1) and thus the patient Taking the leg measurement. 15 25