Orthosis joint countershaft structure and method for assisting manufacturing of ankle-foot orthosis

Abstract

The invention discloses a joint countershaft structure of an orthosis. The joint countershaft structure comprises a base, a hollow rod and an adjusting frame, a vertical hollow rod is installed on the base, and scale marks are arranged on the hollow rod in the length direction. The adjusting frame comprises a console and a positioning rod; the control table is arranged on the hollow rod in a sleeving mode. A laser emitter is arranged on the console; the two positioning rods are vertically and symmetrically arranged on the two sides of the control table, the upper ends of the positioning rods are connected with the control table, and scale marks are arranged on the positioning rods. Positioning holes are formed in the lower ends of the positioning rods. The invention further discloses a method for assisting in manufacturing the ankle-foot orthosis based on the orthosis joint countershaft structure. The device has the beneficial effects that the front and back positions of joint shafts on the two sides of the orthosis are consistent by utilizing the positioning rod and the positioning hole in combination with a laser emitter, the heights of the joint shafts on the two sides of the orthosis are consistent by utilizing scale marks on the hollow rod and the positioning rod for positioning, and the positioning accuracy and consistency of the mechanical joint shafts are improved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to an orthosis joint axis structure and a method for assisting the manufacture of an ankle-foot orthosis. Background Art

[0002] In the field of rehabilitation medicine, the positional accuracy of the mechanical joints in dynamic orthoses directly impacts orthotic effectiveness and patient comfort. Based on functional requirements and ergonomics, mechanical joints must meet stringent requirements for equal height on both sides of the joint axis, consistent front-to-back position, and parallel joint surfaces. Failure to do so can easily lead to orthotic failure, patient discomfort, and even secondary injury.

[0003] Currently, the positioning of mechanical joints in dynamic orthoses relies primarily on manual measurement and empirical judgment, with repeated adjustments required to meet specifications. This method is cumbersome and inefficient, making it difficult to ensure high consistency between the joints on both sides. This results in poor joint positioning accuracy, resulting in inconsistent quality in manufactured orthoses and increased production costs and time.

[0004] Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies of the existing technology and provide an orthosis joint axis structure and a method for assisting the production of an ankle-foot orthosis, aiming to improve the accuracy of mechanical joint positioning of a dynamic orthosis.

[0006] The technical solution adopted by the present invention is: an orthosis joint axis structure, including a base, a hollow rod and an adjustment frame; A vertical hollow rod is installed on the base, and scale lines are provided along the length direction of the hollow rod; The adjustment frame includes a console and a positioning rod; The console is sleeved on the hollow rod; A laser transmitter is placed on the console; There are two positioning rods which are vertically symmetrically arranged on both sides of the console. The upper ends of the positioning rods are connected to the console and scale lines are provided on the positioning rods. The lower ends of the positioning rods are provided with positioning holes.

[0007] According to the above solution, the upper end of the hollow rod is also connected to a coaxial vertical extension rod; the console is adapted to the extension rod.

[0008] According to the above solution, scale lines are provided on the extension rod along the length direction.

[0009] According to the above solution, the extension rod is connected to the hollow rod via a snap-fit structure.

[0010] According to the above solution, the console is equipped with a limiting member, which is arranged on the hollow rod or the extension rod.

[0011] According to the above solution, the console is in a ring structure, including an inner ring and an outer ring connected by a connecting rod, and the laser emitter is arranged in the space between the inner ring and the outer ring; the inner ring of the console is adapted to the hollow rod and the extension rod.

[0012] According to the above solution, the base is in a disc-like structure.

[0013] According to the above solution, the length of the hollow rod is 40 - 50 cm.

[0014] According to the above solution, the length of the extension rod is 35 - 45 cm.

[0015] The present invention also adopts a method for assisting in the manufacture of an ankle-foot orthosis based on the orthosis joint pair axis structure as described above. The method is as follows: Place the base on the inner bottom surface of the ankle-foot orthosis negative mold; according to the height parameter of the ankle joint axis to be positioned of the user, connect the extension rod to the hollow rod of the base through a buckle structure, and adjust the overall length of the pair axis structure so that the height between the positioning hole at the lower end of the positioning rod and the foot template is close to the height of the ankle joint axis to be positioned of the user; Coarsely adjust the height of the console to a suitable position on the hollow rod, and fix the console on the hollow rod of the base; install a laser emitter on the console, and the laser emitter emits a vertically downward square laser line. According to the projection of the square laser line on the mold foot template and the reference line of the front and back positions of the orthosis ankle joint axis on the foot template, adjust the position of the base on the foot template so that the front and back positions of the ankle joint axes on both the inner and outer sides of the ankle-foot orthosis are consistent; Fine-tune the height of the console to ensure that the heights of the ankle joint axes on both the inner and outer sides are the same and consistent with the height parameter of the ankle joint axis required by the user; Utilize the positioning hole located at the lower end of the positioning rod to punch holes at corresponding positions on both sides of the leg template of the ankle-foot orthosis mold, providing an accurate reference for the subsequent manufacture of the dynamic orthosis.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention sets a base, connects it to the adjustment frame through the hollow rod on the base, and uses the console to carry the laser emitter; positioning rods are arranged on both sides of the console, and positioning holes are opened at the lower ends of the positioning rods. This pair axis structure combined with the laser emitter makes the front and back positions of the joint axes on both sides of the orthosis consistent, and uses the scale lines on the hollow rod and the positioning rod for positioning to make the heights of the joint axes on both sides of the orthosis consistent. Punching holes in the mold using the positioning holes improves the accuracy and consistency of mechanical joint positioning by a large margin compared to traditional methods, ensuring the manufacturing quality and rehabilitation effect of the orthosis.

[0017] 2. The present invention utilizes a pipe clamp to quickly fix and adjust the frame, simplifies the positioning process, significantly improves the operation efficiency, and reduces the manufacturing time and labor cost.

[0018] 3. The structure of the present invention is simple and convenient to carry. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of a specific embodiment of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the console in this embodiment.

[0021] Figure 3 It is a schematic structural diagram of the positioning rod in this embodiment (the scale lines are not shown).

[0022] Wherein: 1. Base; 2. Connecting rod; 3. Extension rod; 4. Pipe clamp; 5. Console; 6. Positioning hole; 7. Positioning rod; 8. Hollow rod; 9. Outer ring; 10. Inner ring. Detailed Embodiment

[0023] To better understand the present invention, the present invention will be further described below in conjunction with the drawings and specific embodiments.

[0024] An orthosis joint alignment structure includes a base 1, a hollow rod 8 and an adjustment frame; A vertical hollow rod 8 is installed on the base 1, and scale lines are provided along the length direction of the hollow rod 8; The adjustment frame includes a console 5 and a positioning rod 7; The console 5 is sleeved on the hollow rod 8; A laser emitter is placed on the console 5; There are two positioning rods 7, and they are vertically symmetrically arranged on both sides of the console 5. The upper end of the positioning rod 7 is connected to the console 5, and scale lines are provided on the positioning rod 7; positioning holes 6 are opened at the lower ends of the positioning rods 7.

[0025] In the present invention, when the console 5 is adjusted to a suitable position, the staff can use an electric drill to punch and position the molds for making orthoses on both sides of the alignment structure through the positioning holes 6.

[0026] Preferably, a coaxial vertical extension rod 3 is further connected to the upper end of the hollow rod 8. The console 5 is adapted to the extension rod 3, and the console 5 can move up and down along the extension rod 3; scale lines are provided along the length direction of the extension rod 3. In the present invention, the extension rod 3 and the hollow rod 8 are connected by a buckle structure; the design of the extension rod 3 can increase the adjustment range.

[0027] In the present invention, the length of the hollow rod 8 is 40-50 cm, preferably 45 cm; the length of the extension rod 3 is 35-45 cm, preferably 40 cm; the length of the positioning rod 7 is 30-40 cm, preferably 35 cm.

[0028] Preferably, the console 5 is provided with a limiter for limiting the height, and the limiter is provided on the hollow rod 8 or the extension rod 3 .

[0029] Preferably, the console 5 is an annular structure, including an inner ring 10 and an outer ring 9 connected by a connecting rod 2, and the laser emitter is arranged in the space between the inner ring 10 and the outer ring 9; the inner ring 10 of the console 5 is adapted to the hollow rod 8 and the extension rod 3, and the inner ring 10 of the console 5 can move vertically along the hollow rod 8 and the extension rod 3.

[0030] In the present invention, the position-limiting member is a tube clamp 4, which is an existing structure. After the console 5 is adjusted into position on the hollow rod 8 (or extension rod 3), the tube clamp 4 engages the hollow rod 8 (or extension rod 3) below the console 5, preventing the console 5 from moving downward under the action of the tube clamp 4, thereby limiting the position of the console 5. The laser transmitter is an existing mature structure and will not be described in detail here.

[0031] Example like Figure 1 The orthosis joint axis structure shown in the figure includes a base 1, an extension rod 3, a tube clamp 4, a console 5 and a positioning hole 6. The base 1 is a disc-shaped structure with a diameter of 4 cm. The base 1 vertically extends a hollow rod 8 with a length of 45 cm and a diameter of 2 cm. Graduation lines are marked along the length direction of the hollow rod 8. The extension rod 3 is 40 cm long and has graduation lines on it. The extension rod 3 is connected to the hollow rod 8 of the rod base 1 through a snap-fit structure. The tube clamp 4 has a diameter of 2 cm and is provided on the hollow rod 8 to fix the position of the console 5. Figure 2 As shown, the console 5 is an annular structure, including an inner ring 10, an outer ring 9, and three connecting rods 2 connecting the inner ring 10 and the outer ring 9; the inner ring 10 has a diameter of 2.5 cm, which is adapted to the hollow rod 8 and the extension rod 3. The inner ring 10 is sleeved on the outside of the hollow rod 8 (or extension rod 3), so that the console 5 can move up and down along the hollow rod 8 (or extension rod 3) and is limited by the tube clamp 4; the positioning hole 6 is located at the end of the positioning rod 7 and has a diameter of 1 cm. Figure 3 shown.

[0032] In this embodiment, after the extension rod 3 is connected to the hollow rod 8 of the base 1, the height of the axis structure can be adjusted between 45 and 85 cm.

[0033] In this embodiment, a small laser transmitter is installed in the space between the inner ring 10 and the outer ring 9 of the console 5 .

[0034] This embodiment uses the production of an ankle-foot orthosis as an example to illustrate the working principle. The negative mold (i.e., the mold) used to produce the ankle-foot orthosis includes a foot template adapted to the foot and a leg template adapted to the leg.

[0035] A method for manufacturing an ankle-foot orthosis based on an orthosis joint-axis structure, the method comprising: First, place the base 1 on the inner bottom surface of the negative mold of the ankle-foot orthosis (i.e., the foot template of the mold, which has a reference line for the anterior-posterior position of the orthosis's ankle joint axis, the anterior-posterior direction being from toe to heel), as the support foundation for the entire axis alignment structure. The hollow rod 8 extending vertically upward from the center of the base 1 not only provides support but also serves as a reference for the installation and adjustment of subsequent components. Based on the user's desired ankle joint axis height parameter, the extension rod 3 is connected to the hollow rod 8 of the base 1 via a snap-fit structure. The overall length of the axis alignment structure is adjusted so that the height between the positioning hole 6 at the lower end of the positioning rod 7 and the foot template is close to the desired ankle joint axis height. Then, roughly adjust the height of the console 5 to the appropriate position on the hollow rod 8. After the height is adjusted to the right position, use the tube clamp 4 to fix the console 5 to the hollow rod 8 of the base 1. Install a laser transmitter in the platform space between the inner ring 10 and the outer ring 9 of the console 5. The laser transmitter can emit a vertical downward square laser line. According to the projection of the square laser line on the mold foot template and the reference line of the anterior-posterior position of the orthosis ankle joint axis on the foot template, adjust the position of the base 1 on the foot template so that the anterior-posterior position of the ankle joint axis on both sides of the ankle-foot orthosis remains consistent. Next, further fine-tune the height of the console 5 to ensure that the heights of the inner and outer ankle joint axes are the same and consistent with the ankle joint axis height parameters required by the user (the height of the positioning hole 6 can be calculated by the scale lines on the hollow rod 8 and the scale lines on the positioning rod 7); Finally, the positioning holes 6 at the lower end of the positioning rods 7 are used to punch holes at corresponding positions on both sides of the leg template of the ankle-foot orthosis mold, providing an accurate reference for the subsequent production of the dynamic orthosis.

[0036] When the present invention is used to assist in the production of a knee-ankle-foot orthosis, since the knee joint axis is relatively high, the console 5 is mounted on the extension rod 3 via the tube clamp 4, and holes are punched in the leg template of the knee-ankle-foot orthosis mold according to the knee joint axis height parameter; other operations are the same as those for producing the ankle-foot orthosis.

[0037] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An orthosis joint pair axis structure, characterized in that, It includes a base, a hollow rod and an adjustment frame; A vertical hollow rod is installed on the base, and scale lines are provided on the hollow rod along its length direction; The adjustment frame includes a control console and positioning rods; The control console is sleeved on the hollow rod; A laser emitter is placed on the control console; There are two positioning rods, which are vertically symmetrically arranged on both sides of the control console. The upper ends of the positioning rods are connected to the control console, and scale lines are provided on the positioning rods; positioning holes are provided at the lower ends of the positioning rods.

2. The orthosis joint pair axis structure according to claim 1, wherein, A coaxial vertical extension rod is also connected to the upper end of the hollow rod; the control console is adapted to the extension rod.

3. The orthosis joint pair axis structure according to claim 2, characterized in that, Scale lines are provided on the extension rod along its length direction.

4. The orthosis joint pair axis structure according to claim 3, wherein The extension rod and the hollow rod are connected by a snap structure.

5. The orthosis joint pair axis structure according to claim 1, characterized in that, The control console is configured with a limiting member, and the limiting member is provided on the hollow rod or the extension rod.

6. The orthosis joint pair axis structure according to claim 5, characterized in that, The control console is of an annular structure, including an inner ring and an outer ring connected by a connecting rod; the control console is arranged in the space between the inner ring and the outer ring; the inner ring of the control console is adapted to the hollow rod and the extension rod.

7. The orthosis joint pair axis structure according to claim 1, characterized in that, The base is of a disc-shaped structure.

8. The orthosis joint pair axis structure according to claim 1, characterized in that, The length of the hollow rod is 40 - 50 cm.

9. The orthosis joint pair axis structure according to claim 2, wherein, The length of the extension rod is 35 - 45 cm.

10. A method for fabricating an ankle-foot orthosis assisted by the orthosis joint pair axis structure according to any one of claims 2 to 9, characterized in that, The method is as follows: Place the base on the inner bottom surface of the ankle-foot orthosis negative mold; according to the height parameter of the ankle joint axis to be positioned of the user, connect the extension rod to the hollow rod of the base through the snap structure, and adjust the overall length of the axis structure so that the height between the positioning hole at the lower end of the positioning rod and the foot template is close to the height of the ankle joint axis to be positioned of the user; Coarsely adjust the height of the control console to a suitable position on the hollow rod, and fix the control console on the hollow rod of the base; install a laser emitter on the control console. The laser emitter emits a vertical downward square-shaped laser line. According to the projection of the square-shaped laser line on the mold foot template and the reference line of the front and rear positions of the orthosis ankle joint axis on the foot template, adjust the position of the base on the foot template so that the front and rear positions of the ankle joint axes on both the inner and outer sides of the ankle-foot orthosis are consistent; Fine-tune the height of the control console to ensure that the heights of the ankle joint axes on both the inner and outer sides are the same and are consistent with the height parameter of the ankle joint axis required by the user; Utilize the positioning holes located at the lower ends of the positioning rods to drill holes at the corresponding positions on both sides of the leg template of the ankle-foot orthosis mold, providing an accurate reference for the subsequent production of the dynamic orthosis.

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