Assembled plantar test pad for lower limb force line adjustment
Through the design of the combination sole test pad, the combination of gradient wedge and arch modules and the combination of cushioning materials, the problem that the existing sole insoles cannot adjust the force line of the lower limbs is solved, and the accurate diagnosis of patients with knee osteoarthritis is achieved and treatment effects slow down the development of arthritis.
Patent Information
- Application Number
- CN202411532729.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-01-10
AI Technical Summary
The existing sole insoles cannot adjust the lower limb force line in real time and in a variety of ways, resulting in poor diagnosis and treatment effects in patients with knee osteoarthritis and lack of highly targeted sole pad test problems.
A combination sole test pad is designed, including the basal layer, gradient wedge module, connection module and gradient arch module. Through different parameters and buffering materials, it can adapt to the knee arthritis needs of different patients, combining patient feedback and HKA When the angle changes, a test pad is equipped to meet the adjustment of the lower limb force line.
It has achieved accurate adjustment of the lower limb force line of patients with knee osteoarthritis, slowed down the development of arthritis, reduced the knee varus moment and medial chamber load, and improved the treatment effect and diagnostic efficiency.
Smart Images
Figure CN119279883A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of medical devices, and in particular relates to a modular sole test pad for adjusting the force line of lower limbs. Background Art
[0002] Knee osteoarthritis is one of the common bone and joint diseases. By adjusting the force line of the lower limbs and changing the HKA angle, the force distribution of the medial and lateral condyles of the knee joint can be adjusted, and the load on the arthritis side can be transferred to the healthy side, thereby slowing down the development of arthritis. It is a feasible conservative treatment. At present, plantar insoles are one of the optional treatment methods, but the parameters of the lower limb force line adjustment cannot be clearly determined based on the plantar morphology alone. Patients cannot obtain real-time and diverse pre-experiences, and doctors cannot make a quick and accurate diagnosis. The trial and error cost is high, and the treatment effect is unknown. In order to solve the problem of lack of plantar trial pads for lower limb force line adjustment of patients with knee osteoarthritis in orthopedic outpatient clinics, a modular plantar trial pad for lower limb force line adjustment of patients with knee osteoarthritis is urgently needed. The purpose is to help doctors in the diagnosis and lower limb force line adjustment of patients with knee osteoarthritis. Based on the serialized modular plantar trial pads, the different parameters and functional module combinations of the trial pads are adjusted according to the patient's arthritis condition. Combined with the patient's subjective feedback and HKA angle changes, the final plantar trial pad that meets the lower limb force line adjustment of patients with knee osteoarthritis is deployed to help patients with subsequent precise customization of rehabilitation equipment. Summary of the invention
[0003] In view of this, the present invention provides a modular sole test pad for adjusting the force line of the lower limbs, so as to solve the deficiencies in the prior art.
[0004] The technical solution of the present invention is: a modular plantar test pad for adjusting the force line of the lower limbs, including a base layer, the bottom of which includes two areas of plantar pressure buffer zones, and a functional module layer, which is composed of a gradient wedge module, a connection module and a gradient arch module.
[0005] Preferably, the base layer of the test pad is 2 mm thick, and its bottom is provided with two integrally formed plantar pressure buffering areas at the sole and heel respectively. The buffering area is specifically configured as a groove with a depth of 1 mm, and the function of buffering plantar pressure is achieved by adhering buffering material in the groove.
[0006] Preferably, a magic hook is pasted on the top of the test pad base layer for connecting the functional module layer.
[0007] Preferably, the gradient wedge module can be divided into a base layer and a wedge layer, the base layer is 2 mm thick, and the wedge layer is set with different inclination angles from the connection side to the edge side of the test pad, and the inclination angles are set to six gradients of 0°, 2°, 4°, 6°, 8°, and 10°. Three connecting bolts are set on the side, and the connecting bolts cooperate with the semicircular grooves on the connection module corresponding to the position of the wedge module to achieve lateral connection. Magic hair is pasted on the bottom of the gradient wedge module, which cooperates with the magic hook of the base layer to achieve longitudinal connection.
[0008] Preferably, the gradient arch module can be divided into a base layer and an arch layer, the base layer is 2mm thick, the arch layer is set as a bionic arch with increasing thickness from the connection side to the edge side of the test pad, and the thickness reaches the maximum at the edge side of the test pad. The thickness is set to nine gradients of 0mm, 2mm, 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, and 16mm. Two connecting bolts are set on the side, and the connecting bolts cooperate with the semicircular grooves on the connection module corresponding to the position of the arch module to achieve lateral connection. Magic hair is pasted on the bottom of the gradient arch module, which cooperates with the magic hook of the base layer to achieve longitudinal connection.
[0009] Preferably, the connection module is 2 mm thick and comprises five semicircular grooves to cooperate with the gradient wedge module and the gradient arch module to achieve lateral connection. Magic hair is pasted on the bottom of the connection module to cooperate with the magic hook of the base layer to achieve longitudinal connection.
[0010] Preferably, the test pad size includes international sizes from 35 to 45, that is, Chinese sizes from 225mm to 275mm, and also includes left and right foot test pads. The cases introduced in this patent are all for the left foot, and the right foot is a symmetrical structure of the left foot.
[0011] Preferably, the test pad base layer and the functional module layer are both made of TPE material with a hardness of 83A.
[0012] Preferably, the cushioning material used in the plantar pressure cushioning area of the test pad base layer is EVA foam.
[0013] Compared with the prior art, the modular plantar test pad for adjusting the force line of the lower limbs provided by the present invention can be matched into a variety of combinations by changing different functional modules and different gradient parameters, and is suitable for adjusting the force line of the lower limbs in the diagnosis process of different patients. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional diagram of the test pad of the present invention;
[0015] Figure 2 is a schematic diagram of the test pad assembly of the present invention;
[0016] Figure 3 is a top view of the base layer of the test pad of the present invention;
[0017] Figure 4 is a bottom view of the base layer of the test pad of the present invention;
[0018] Figure 5 It is a three-dimensional schematic diagram of the gradient wedge-shaped module of the test pad of the present invention;
[0019] Figure 6 is a three-dimensional schematic diagram of a test pad connection module of the present invention;
[0020] Figure 7 It is a three-dimensional schematic diagram of the test pad gradient arch module of the present invention. DETAILED DESCRIPTION
[0021] The present invention provides a modular sole test pad for adjusting the force line of the lower limbs. Figures 1 to 7 The present invention is described with reference to the structural schematic diagram of FIG.
[0022] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the technical solutions of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0023] Example 1
[0024] like Figures 1 to 7 The specific embodiment 1 of the present invention is shown as a modular sole test pad for adjusting the force line of the lower limbs, referring to Figure 1 and Figure 2 As shown, it includes a base layer 1, a gradient wedge module 2, a connection module 3 and a gradient arch module 4, wherein:
[0025] Reference Figure 3 and Figure 4 As shown, the bottom surface of the base layer 1 is provided with two integrally formed plantar pressure buffering areas 11 at the sole and the heel, respectively. The buffering area is specifically set as a groove with a depth of 1 mm, and the function of buffering plantar pressure is achieved by adhering a buffering material in the groove;
[0026] Reference Figure 5 As shown, the gradient wedge-shaped module 2 is set with different inclination angles from the connection side to the edge side of the test pad, and the inclination angles are set with six gradients of 0°, 2°, 4°, 6°, 8°, and 10°, and at the same time includes three semicircular connecting bolts 21 that cooperate with the connecting module 3 to achieve lateral connection;
[0027] Reference Figure 6 As shown, the connection module 3 is used to connect the gradient wedge-shaped module 2 and the gradient arch module 4. There are five semicircular grooves distributed on both sides of the connection module 3, of which there are three grooves 31 for connecting the gradient wedge-shaped module 2 and two grooves 32 for connecting the gradient arch module 4;
[0028] Reference Figure 7 As shown, the gradient arch module 4 is set to an arch with increasing thickness from the connection side to the edge side of the test pad, and the thickness reaches the maximum at the edge side of the test pad. The thickness is set to nine gradients of 0mm, 2mm, 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, and 16mm, and it also includes two semicircular connecting bolts 41 that cooperate with the connecting module 3 to achieve lateral connection;
[0029] The test pad size includes international sizes from 35 to 45, that is, Chinese sizes from 225mm to 275mm, and also includes left and right foot test pads. The examples of the present invention are all for the left foot, and the right foot is a symmetrical structure of the left foot;
[0030] In this embodiment, the structural material of the test pad is TPE with a hardness of 83A, and the cushioning material is EVA foam.
[0031] The working principle of the present invention is: by wearing a trial pad on the sole of the patient's foot, the pressure center of the patient's sole can be laterally moved close to the inside of the patient's body, reducing the lever arm formed by the reaction force of the patient's knee joint and the ground, thereby reducing the patient's knee varus moment (KAM), and reducing the load on the medial cavity of the patient's knee joint, thereby slowing down the development of the patient's knee arthritis.
[0032] The specific usage of the present invention is: combining the size and characteristics of the patient's foot and the need for lower limb force line adjustment due to knee arthritis, providing the patient with several gradient wedge modules and gradient arch modules that may be suitable for the patient, assembling them into a lower limb force line adjustment plantar test pad, and the patient performs daily activities such as walking to obtain the patient's subjective feelings and evaluations, and changes in the HKA angle of the lower limbs, and screening to determine the final test pad combination plan.
[0033] A specific implementation case of the present invention is as follows: a hospital receives a patient, and after an imaging scan, the patient is diagnosed with early medial knee osteoarthritis. The patient is then transferred to a gait research laboratory, where a trial pad with different module combinations suitable for the patient's foot shape and size is fitted for the patient. After the patient wears the trial pad, he or she walks through a test trail several meters long at the frequency of daily walking steps. The movement characteristics of the patient's lower limbs while walking are captured by cameras on both sides of the trail. After computer analysis, the changes in the patient's knee varus torque and the HKA angle of the lower limbs before and after wearing the trial pad can be obtained, thereby evaluating the effectiveness of the trial pad. If the wearing effect of the trial pad is not ideal, it is necessary to replace the wedge modules and arch modules of other gradients according to the actual situation. After repeated tests, the trial pad that best suits the patient's current knee arthritis condition is selected, and the wearing comfort of the trial pad is also within the patient's acceptable range. Finally, a combination of trial pads suitable for the patient is determined.
[0034] The above disclosure is only a preferred specific embodiment of the present invention, but the embodiments of the present invention are not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.
Claims
1. A modular sole test pad for adjusting the force line of lower limbs, characterized in that: It includes a test pad base layer, the test pad base layer is located below the test pad functional module layer, and the bottom surface of the test pad functional module layer is connected to the top surface of the test pad base layer through Velcro; The base layer of the test mat contains two areas of plantar pressure buffer zones on its underside; The test mat functional module layer is composed of a gradient wedge module, a connection module and a gradient arch module, wherein the gradient wedge module and the connection module, and the gradient arch module and the connection module are connected by semicircular connecting bolts and connecting grooves, and the gradient wedge module, the connection module and the gradient arch module are all connected in parallel on the same horizontal plane.
2. The modular sole test pad for adjusting the force line of the lower limbs according to claim 1, characterized in that: The thickness of the test pad base layer is 2 mm, and two integrally formed plantar pressure buffering areas are respectively arranged at the sole and the heel of the test pad base layer. The buffering area is specifically set as a groove with a depth of 1 mm, and the function of buffering plantar pressure is achieved by adhering buffering material in the groove.
3. The modular sole test pad for adjusting the force line of the lower limbs according to claim 1, characterized in that: The top of the test pad base layer is pasted with a magic hook, which cooperates with the magic hair pasted on the test pad functional module layer to achieve longitudinal connection.
4. The modular sole test pad for adjusting the force line of the lower limbs according to claim 1, characterized in that: The test pad functional module layer includes a gradient wedge module, which is in the shape of a slender scimitar. The wedge module can be divided into a base layer and a wedge layer. The base layer is 2 mm thick. The wedge layer is set with different inclination angles from the connection side to the edge side of the test pad. The inclination angles are set at six gradients of 0°, 2°, 4°, 6°, 8°, and 10°. There are two semicircular connecting bolts for connection at the base layer corresponding to the sole of the foot, and one semicircular connecting bolt for connection at the corresponding heel. The connecting bolts cooperate with the semicircular grooves at the corresponding positions on the connecting module to achieve horizontal connection. Magic hair is pasted on the bottom of the wedge module, which cooperates with the magic hook pasted on the base layer to achieve vertical connection.
5. The modular sole test pad for adjusting the force line of lower limbs according to claim 1, characterized in that: The test pad functional module layer includes a gradient arch module. The arch module is projected in an arch shape, and its appearance features are bionic arch protrusions of different heights. The arch module can be divided into a base layer and an arch layer. The base layer is 2mm thick. The arch layer is set to an arch with increasing thickness from the connection side to the edge side of the test pad. The thickness of the edge side of the test pad reaches the maximum. The thickness is set to nine gradients of 0mm, 2mm, 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, and 16mm. Two semicircular connecting bolts are set in the base part. The connecting bolts cooperate with the semicircular grooves at the corresponding positions on the connecting module to achieve horizontal connection. Magic hair is pasted on the bottom of the arch module, which cooperates with the magic hook pasted on the base layer to achieve vertical connection.
6. The modular sole test pad for adjusting the force line of lower limbs according to claim 1, characterized in that: The test pad functional module layer includes a connecting module, the thickness of the connecting module is 2 mm, and the connecting module and the gradient wedge-shaped module are provided with three semicircular grooves on the connecting side, which cooperate with the semicircular connecting bolts of the gradient wedge-shaped module to achieve lateral connection; the connecting module and the gradient arch module are provided with two semicircular grooves on the connecting side, which cooperate with the semicircular connecting bolts of the gradient arch module to achieve lateral connection, and magic hair is pasted on the bottom of the connecting module, which cooperates with the magic hook pasted on the base layer to achieve longitudinal connection.
7. The modular sole test pad for adjusting the force line of lower limbs according to claim 1, characterized in that: The test pad sizes include international sizes from 35 to 45, that is, Chinese sizes from 225mm to 275mm, and also include test pads for left and right feet.
8. The modular sole test pad for adjusting the force line of lower limbs according to claim 1, characterized in that: The test pad base layer and the functional module layer are both made of TPE material with a hardness of 83A.
9. The modular sole test pad for adjusting the force line of lower limbs according to claim 1, characterized in that: The cushioning material used in the plantar pressure cushioning area of the test pad base layer is EVA foam.