Manufacturing method for 3D orthopedic insole

A manufacturing method and insole technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of time-consuming processing, waste of material resources, and inability to judge the arrangement of foot bones, so as to improve accuracy and reduce errors Effect

Active Publication Date: 2015-06-10

CHONGQING RONGAN MEDICAL APP CO LTD

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AI-Extracted Technical Summary

Problems solved by technology

2. The patient's individual foot bone arrangement cannot be considered, such as whether there is dislocation of the talonovicular joint and the degree of dislocation, whether there is calcaneus valgus deformity and the degree of valgus, so it is impossible to make an accurate correction design for the deformity

It has the following problems: 1, the basis of shaping is the contour of the patient's foot, rather than the imaging changes of the bone structure of the patient's foot

The measurement of deformity and the design of the orthopedic part of the insole cannot achieve uniform accuracy

2. The insole design is done by the technicians of the brace company, not the doctors. That is, the diagnosis and insole production are done by different departments, resulting in a disconnect. Technicians who lack medical theoretical knowledge cannot combine the clinical design of orthopedic insoles perfectly.

3. The mold taking and product production are completed in multiple steps, so it is difficult to guarantee the accuracy of the product

4. Orthopedics is a long-term process, and it may take a long time to replace orthopedic insoles of different heights and positions. Using the original custom method requires a corresponding number of impressions, which is a great waste of manpower and material resources

It has the following problems: 1. The plantar ...

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Abstract

The invention relates to a manufacturing method for a 3D orthopedic insole. The manufacturing method comprises the following steps: carrying out imageological examination on an ankle on a load bearing position or carrying out imageological examination on a non-load-bearing position of the orthopedic ankle; introducing three-dimensional modeling software into a scanned image to generate three-dimensional models of foot bones and feet; inducing an insole curved surface matched with a sole according to the three-dimensional model of the feet; carrying out orthopedic operation on the insole curved surface according to the three-dimensional model of the feet and the specific types of the foot bones to obtain the orthopedic insole curved surface; and printing the insole corresponding to the orthopedic insole curved surface by a 3D printer. By the aid of the manufacturing method, the insole can be individually customized, and the targeted orthopedic insole is manufactured according to the changes of the feet of patients.

Application Domain

Additive manufacturing apparatusSpecial data processing applications

Technology Topic

Three dimensional modelBiomedical engineering +6

Image

Examples

Experimental program(2)

Example Embodiment

[0037] Example 1:

[0038] The present invention provides a method for manufacturing a 3D orthopedic insole, which includes the following steps:

[0039] (1) Perform imaging examination on the weight-bearing ankle or the non-weight-bearing position of the corrected ankle;

[0040] (2) Import the scanned images into 3D modeling software to generate 3D models of foot bones and feet;

[0041] (3) Derive the insole curved surface that fits the sole of the foot according to the three-dimensional model of the foot;

[0042] (4) Correct the curved surface of the insole according to the three-dimensional model of the foot bone and the specific type of the foot bone to obtain the corrected insole curved surface;

[0043] (5) Print out the insole corresponding to the curved surface of the orthopedic insole by a 3D printer.

[0044] It is to scan the three-dimensional model of the user’s foot, and then derive the surface of the insole that fits the sole of the foot, and then print the insole through a 3D printer, so that the insole completely fits the user’s sole during use, thereby enhancing The comfort level of the user.

[0045] The fully-fitting foot pad can evenly distribute the plantar pressure, avoid local accumulated strain on the plantar, protect the plantar fascia, and prevent its repeated traction from causing plantar fasciitis and calcaneal spurs. Fully fitted insoles can also reduce the chance of falling for the elderly.

[0046] Of course, step 4 can be omitted in the above process.

[0047] The scaphoid index of normal people (belonging to the prior art) is 5.4-6.5 ( figure 2 Between a/b), and some people’s scaphoid index is greater than 6.5, which has a certain impact on normal life.

[0048] Through the three-dimensional model of the foot bone obtained in step 2, the user's scaphoid index is calculated. If the scaphoid index is greater than 6.5, it means that the insole needs to be corrected (step 4).

[0049] The specific orthopedic method is:

[0050] Obtain the arch length and scaphoid height through the three-dimensional model of the foot bone, and calculate the scaphoid index. According to the scaphoid index of a normal person, the height of the scaphoid bone should be calculated, and the height of the foot arch should be raised. In this way, the corresponding curved surface lift height of the insole is calculated.

[0051] When the user uses the insole, the curved surface of the arch of the foot corresponding to the insole is lifted up to a certain height, so that the user's arch is also lifted up, which further causes the user's navicular bone to move upward, thereby reducing the use of The navicular index of the person is within the prescribed range.

[0052] It should be noted that the height that the navicular bone should be raised is equal to the height that the arch of the foot should be raised and the height of the corresponding curved surface of the insole.

[0053] In other words, the correction distance of the insole is equal to the height of the scaphoid when the user uses the insole.

[0054] Through this arrangement, the orthopedic insole obtained by this method has a certain health care effect.

[0055] The orthopedic insole obtained by the above method can also be used for foot shaping for patients with flat feet.

[0056] In step 1, the imaging examination includes X-ray machine, CT machine or magnetic resonance examination machine.

[0057] In step 2, the 3D modeling software is MIMICS.

[0058] The MIMICS software mentioned above is the existing software, and its purpose and function will not be repeated here.

[0059] The 3D printer uses any one of nylon, EVA plastic material, polyurethane foam, thermoplastic elastomer and ABS plastic as a raw material.

Example Embodiment

[0060] Example 2:

[0061] A manufacturing method of 3D orthopedic insoles, including:

[0062] (1) Perform imaging examination on the weight-bearing ankle or the non-weight-bearing position of the corrected ankle;

[0063] (2) Import the scanned images into 3D modeling software to generate 3D models of foot bones and feet;

[0064] (3) Analyze the type of foot bone manually and confirm that the type of foot bone is simple arch collapse, arch collapse with calcaneal valgus and arch collapse with calcaneal valgus, midfoot abduction, and talar navicular joint dislocation. One kind

[0065] (4) Derive the insole curved surface that fits the sole of the foot according to the three-dimensional model of the foot;

[0066] (5) Correct the insole surface according to the three-dimensional model of the foot bone and the specific type of the foot bone to obtain the orthopedic insole surface; at the highest point of the arch of the foot, and the lower edge of the proximal end of the scaphoid, raise the arch of the foot accurately from here, Restore the arch to the anatomical position.

[0067] (5.1) Obtain the arch length and scaphoid height through the three-dimensional model of the foot bone, and calculate the scaphoid index. According to the scaphoid index of a normal person, calculate the height of the scaphoid that should be raised, and further get the foot arch should be raised. The height of the insole is calculated, and the corresponding surface lift height of the insole is calculated;

[0068] (5.2) Set a 15-20mm heel circumference 2 on the corresponding heel of the insole curved surface;

[0069] The heel insole is designed to be horizontal. For the internal rotation of the foot and severe calcaneal valgus, an inclined plane can be designed on the horizontal surface of the bottom of the heel cup to strengthen the correction of calcaneal valgus.

[0070] (5.3) On the inside of the curved surface of the insole, the medial wing 1 extends upward from the back circumference of the heel. The height of the medial wing reaches the middle and lower 1/3 of the talus; it is convex to the outside, and the medial wing extends forward and gradually descends to The middle of the first metatarsal bone;

[0071] (5.4) On the outside of the curved surface of the insole, a lateral wing 3 extends upward from the back circumference of the heel, and its upper edge is located at the tuberosity of the cuboid bone 4. The lateral wing bulges toward the inside with the cuboid proximal calcaneal end as the vertex. The lateral wings extend forward and gradually descend to the middle of the fifth metatarsal;

[0072] (6) Print out the insole corresponding to the curved surface of the orthopedic insole through a 3D printer.

[0073] It should be noted that if the foot bone type is simple arch collapse, the step 5 only needs to proceed to step 5.1.

[0074] For the type of foot bone with arch collapse and calcaneal valgus, step 5 needs to go to step 5.2, that is to say, step 5.1 and step 5.2 with Chinese medicine in step 5 (foot arch collapse with calcaneal valgus must be accompanied by simple Collapse of the arch).

[0075] The back circumference of the heel is designed to strengthen the prevention of calcaneus valgus and pressure on the calcaneus inward and forward. When the talar navicular joint is dislocated, the medial wing is designed. The height of the wing is based on the middle part of the talus and bulges outward, giving the head of the talus an upward and outward thrust to correct the dislocation of the talar navicular joint.

[0076] The thickness of the back wall is set at 15-20mm, mainly considering that the thickness of the heel of the sole is generally not greater than 20mm, so the thickness of the back wall should be controlled within 20mm.

[0077] The specific choice of thickness needs to be determined according to the actual situation of the user.

[0078] For arch collapse with calcaneus valgus, midfoot abduction, and talar navicular joint dislocation, proceed to step 5.4 in step 5.

[0079] When the talar navicular joint is dislocated, the medial wing is designed. The height of the wing is based on the middle part of the talus and bulges outward, giving the head of the talus an upward and outward thrust to correct the dislocation of the talar navicular joint.

[0080] The orthopedic insoles can be made into hard orthopedic insoles, semi-hard orthopedic insoles or soft orthopedic insoles as required.

[0081] Hard orthopedic insoles: Directly print 3/4 insoles with hard materials, such as PP, nylon and glass fiber, without compounding soft materials on the surface.

[0082] Semi-rigid orthopedic insole: The distal end of the printed insole (bottom insole) is about 2cm from the proximal end of the metatarsophalangeal joint, which is 3/4 insole, printed with harder materials, such as PP, nylon and glass fiber, hard EVA, etc. A layer of about 2mm thick soft material, such as EVA, RUBBER, silicone, cowhide, etc., is compounded on the surface of the bottom insole to cushion and absorb the pressure on the foot.

[0083] Soft orthopedic insoles: Directly print with soft nylon, rubber, etc., to print full-length insoles without surface compound materials.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

High precision
Reduce mistakes

Method and apparatus for patterned plasma-mediated laser trephination of the lens capsule and three dimensional phaco-segmentation

ActiveUS20060195076A1High precisionEasy to disassembleLaser surgeryDiagnosticsPhysics3D ultrasound

Owner:AMO DEVMENT

Manufacturing method for 3D orthopedic insole

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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