Flatfoot paravicular ostealgia protection 3D printing combined insole
By introducing shock-absorbing and protective units into the insole, the problems of insufficient shock absorption and inadequate protection of the accessory navicular bone during exercise in existing insoles are solved, achieving better shock absorption and accessory navicular bone protection, and improving user comfort.
Patent Information
- Application Number
- CN202520224420.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-13
AI Technical Summary
Existing insoles do not provide adequate shock absorption during exercise and cannot effectively protect the accessory navicular bone, resulting in pain issues not receiving sufficient attention.
A 3D-printed composite insole comprising a shock-absorbing unit and a protective unit has been designed. The shock-absorbing unit provides cushioning through internal fixing grooves, cushioning elements, and auxiliary shock-absorbing balls, while the protective unit protects the protruding parts of the subnavicular bone through a subnavicular bone support pad and grooves.
It improves shock absorption during exercise, reduces pain at the protruding part of the accessory navicular bone, and provides better comfort and protection.
Smart Images

Figure CN223653329U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to insole technical field, especially in kind of flat foot accessory tarsal bone pain prevention 3D printing combination insole. BACKGROUND
[0002] Accessory tarsal bone pain syndrome is a common chronic foot pain, and the accessory tarsal bone is considered as normal variation in clinic, and the disease is generally ignored. In fact, the occurrence of accessory tarsal bone is due to the appearance of a ossification center between the proximal side of scaphoid bone or scaphoid distal joint, and it is not combined with the scaphoid bone during development, thereby forming or combining to form a local prominent accessory tarsal bone. Generally, it is treated by correcting insole and correcting shoes.
[0003] Through the search in the publication (announcement) No. CN220832104U, a kind of severe flat foot, heel valgus correction insole is disclosed, which relates to insole field. The severe flat foot, heel valgus correction insole, the upper surface of the insole surface layer is inclined to rise in the middle waist outside, forming an arch support layer, which is used to adapt to the bone morphology at the arch, providing support for the arch of flat foot, the lower surface of the insole surface layer is provided with a buffer pad, and the buffer pad includes a buffer layer, a bottom plane layer and an inclined plane layer, the bottom plane layer and the inclined plane layer are arranged below the buffer layer, and the bottom plane layer is located at the heel. The severe flat foot, heel valgus correction insole, the arch support layer can provide support for the arch of flat foot, and the bottom plane layer at the heel can provide strong support for the medial side of calcaneus, and correct severe flat foot, stiff flat foot, accessory tarsal bone protrusion and calcaneus valgus.
[0004] Although the above-mentioned scheme provides strong support for the medial side of calcaneus, and corrects severe flat foot, stiff flat foot, accessory tarsal bone protrusion and calcaneus valgus, the insole has limitations in material and thickness, and the shock absorption effect during exercise is not obvious. Therefore, we propose a kind of flat foot accessory tarsal bone pain prevention 3D printing combination insole. UTILITY MODEL CONTENTS
[0005] The main purpose of the utility model is to provide a kind of flat foot accessory tarsal bone pain prevention 3D printing combination insole, which solves the problem of the insole due to its material and thickness limitation, and the shock absorption effect during exercise is not obvious by setting the damping unit and the protection unit.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] A kind of flat foot accessory tarsal bone pain prevention 3D printing combination insole, including main unit, further including damping unit in the main unit, protection unit being arranged on the upper of main unit, and connecting unit being arranged at the bottom of main unit;
[0008] The damping unit comprises a fixed groove opened in the inside of the main unit, a buffer piece arranged in the fixed groove, and an auxiliary damping ball installed at the bottom of the main unit.
[0009] The protection unit comprises a secondary navicular support pad installed at the top of the main unit, and a secondary navicular groove opened at the top of the secondary navicular support pad.
[0010] Preferably, the main unit comprises a buffer pad, a contact pad installed at the top of the buffer pad, and a bottom layer support pad installed at the bottom of the buffer pad.
[0011] Preferably, the main unit further comprises a ventilation hole opened at the top of the buffer pad.
[0012] Preferably, the buffer piece comprises an elastic ring installed at the bottom wall of the fixed groove, and a wave-shaped elastic sheet installed in the inside of the elastic ring.
[0013] Preferably, the connecting unit comprises an anti-skid groove opened at the bottom of the bottom layer support pad, a bonding groove opened at the bottom of the bottom layer support pad, and a glue block installed at the bottom of the bonding groove.
[0014] Preferably, the surface of the buffer pad is provided with anti-skid lines.
[0015] Preferably, the damping unit further comprises a damping pad installed at the bottom of the bottom layer support pad.
[0016] Compared with the prior art, the utility model has the advantages of the following:
[0017] In the utility model, when the user walks, the foot part can extrude the wave-shaped elastic sheet through the elastic ring, and the wave-shaped elastic sheet rebounds quickly when the foot part is lifted, so that the foot part can be better supported and buffered, the damping effect is improved, the wearing is more comfortable, and the damping effect during movement is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;
[0019] Figure 2 It is a top view structure schematic diagram of the utility model;
[0020] Figure 3 It is a three-dimensional structure schematic diagram of the utility model; Figure 2 It is a sectional structure schematic diagram of the utility model at A-A; It is a three-dimensional structure schematic diagram of the utility model;
[0021] Figure 4 It is the front view structure schematic diagram of the utility model;
[0022] Figure 5 It is the lower view structure schematic diagram of the utility model.
[0023] In the drawing:
[0024] 1, main unit; 101, buffer pad; 102, contact pad; 103, bottom support pad; 104, air hole;
[0025] 2, damping unit; 201, buffer piece; 2011, elastic ring; 2012, wave-shaped elastic sheet; 202, auxiliary damping ball; 203, damping pad;
[0026] 3, protection unit; 301, vice tarsal support pad; 302, vice tarsal groove;
[0027] 4, connecting unit; 401, anti-skid groove; 402, adhesive block. DETAILED DESCRIPTION
[0028] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments. Embodiment 1
[0029] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a flat foot vice tarsal pain protection 3D printing combined shoe pad, comprising a main unit 1, further comprising a damping unit 2 inside the main unit 1, a protection unit 3 arranged above the main unit 1, and a connecting unit 4 arranged at the bottom of the main unit 1;
[0030] As shown in Figure 3 , the damping unit 2 comprises a fixed groove opened in the inside of the main unit 1, a buffer piece 201 arranged in the fixed groove, and an auxiliary damping ball 202 installed at the bottom of the main unit 1, the arrangement of the auxiliary damping ball 202 can make the impact received by the user during exercise smaller;
[0031] As shown in Figure 2 , the protection unit 3 comprises a vice tarsal support pad 301 installed at the top of the main unit 1, and a vice tarsal groove 302 opened at the top of the vice tarsal support pad 301, the arrangement of the vice tarsal groove 302 facilitates the wrapping protection of the contralateral vice tarsal convex part.
[0032] As shown in Figure 1As shown in the drawings, the main unit 1 includes a buffer pad 101, a contact pad 102 mounted on the top of the buffer pad 101, and a bottom support pad 103 mounted on the bottom of the buffer pad 101. The bottom support pad 103 is provided to provide support for the smooth operation of the entire insole.
[0033] As shown in the drawings, Figure 3 The main unit 1 also includes a ventilation hole 104 opened on the top of the buffer pad 101. The ventilation hole 104 allows air between the foot and the buffer pad 101 to flow quickly with the outside.
[0034] As shown in the drawings, Figure 3 The buffer 201 includes an elastic ring 2011 mounted on the bottom wall of the fixed groove, and a wave-shaped elastic sheet 2012 mounted inside the elastic ring 2011. The wave-shaped elastic sheet 2012 allows for smoother walking.
[0035] As shown in the drawings, Figure 1 The surface of the buffer pad 101 is provided with anti-skid lines to prevent the user's foot from slipping on the insole.
[0036] As shown in the drawings, Figure 5 The shock absorption unit 2 also includes a shock absorption pad 203 mounted on the bottom of the bottom support pad 103. The shock absorption pad 203 provides foot cushioning during exercise.
[0037] When the user is walking, the foot will press the wave-shaped elastic sheet 2012 through the elastic ring 2011. When the foot is lifted, the wave-shaped elastic sheet 2012 will quickly rebound, allowing the foot to be better supported and cushioned, improving the shock absorption effect and making the wearer more comfortable. Embodiment 2
[0038] As shown in the drawings, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A flat foot accessory tarsal pain prevention 3D printing combined insole includes a main unit 1, a shock absorption unit 2 inside the main unit 1, a protection unit 3 arranged above the main unit 1, and a connection unit 4 arranged at the bottom of the main unit 1.
[0039] As shown in the drawings, Figure 3 The shock absorption unit 2 includes a fixed groove opened in the main unit 1, a buffer 201 arranged inside the fixed groove, and an auxiliary shock absorption ball 202 mounted on the bottom of the main unit 1. The auxiliary shock absorption ball 202 allows the user to experience less impact during exercise.
[0040] As shown in the drawings, Figure 2As shown, the protection unit 3 includes a secondary navicular support pad 301 mounted on the top of the main unit 1, and a secondary navicular recess 302 opened on the top of the secondary navicular support pad 301. The secondary navicular recess 302 is provided to facilitate the wrapping protection of the protruding part of the contralateral secondary navicular.
[0041] As shown in the Figure 1 As shown, the main unit 1 includes a buffer pad 101, a contact pad 102 mounted on the top of the buffer pad 101, and a bottom support pad 103 mounted on the bottom of the buffer pad 101. The bottom support pad 103 provides support for the stable operation of the entire insole.
[0042] As shown in the Figure 3 As shown, the main unit 1 further includes a ventilation hole 104 opened on the top of the buffer pad 101. The ventilation hole 104 allows the air between the foot and the buffer pad 101 to flow rapidly with the outside.
[0043] As shown in the Figure 3 As shown, the buffer 201 includes an elastic ring 2011 mounted on the bottom wall of the fixed groove, and a wave-shaped elastic sheet 2012 mounted inside the elastic ring 2011. The wave-shaped elastic sheet 2012 makes walking more stable.
[0044] As shown in the Figure 4 As shown, the connection unit 4 includes an anti-skid groove 401 opened on the bottom of the bottom support pad 103, an adhesive groove opened on the bottom of the bottom support pad 103, and an adhesive block 402 mounted on the bottom of the adhesive groove. The adhesive block 402 facilitates the quick connection and installation of the insole and the shoe.
[0045] As shown in the Figure 1 As shown, the surface of the buffer pad 101 is provided with anti-skid lines. The anti-skid lines prevent the lateral sliding between the user's foot and the insole.
[0046] As shown in the Figure 5 As shown, the shock absorption unit 2 further includes a shock absorption pad 203 mounted on the bottom of the bottom support pad 103. The shock absorption pad 203 provides foot cushioning during exercise.
[0047] When the contact pad 102 contacts and supports the user's foot, the secondary navicular support pad 301 can leave a certain recess space for the protruding part of the contralateral secondary navicular through the secondary navicular recess 302 on the inner side wall, thereby reducing the pain caused by the extrusion of this part. The secondary navicular is wrapped and protected.
[0048] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A 3D-printed composite insole for protecting against accessory navicular bone pain in flat feet, comprising a main body unit (1), characterized in that, It also includes a shock-absorbing unit (2) inside the main body unit (1), a protective unit (3) disposed above the main body unit (1), and a connecting unit (4) disposed at the bottom of the main body unit (1). The shock absorption unit (2) includes a fixing groove opened inside the main body unit (1), a buffer (201) set inside the fixing groove, and an auxiliary shock absorption ball (202) installed at the bottom of the main body unit (1). The protective unit (3) includes a sub-navicular support pad (301) installed on the top of the main unit (1) and a sub-navicular groove (302) formed on the top of the sub-navicular support pad (301).
2. The 3D-printed composite insole for protecting against accessory navicular bone pain in flat feet according to claim 1, characterized in that: The main unit (1) includes a buffer pad (101), a contact pad (102) installed on top of the buffer pad (101), and a bottom support pad (103) installed at the bottom of the buffer pad (101).
3. The 3D-printed composite insole for protecting against accessory navicular bone pain in flat feet according to claim 2, characterized in that: The main body unit (1) also includes a vent (104) on the top of the buffer pad (101).
4. The 3D-printed composite insole for protecting against accessory navicular bone pain in flat feet according to claim 3, characterized in that: The buffer (201) includes an elastic ring (2011) installed on the bottom wall of the fixed groove, and a wave-shaped spring sheet (2012) installed inside the elastic ring (2011).
5. The 3D-printed composite insole for protecting against accessory navicular bone pain in flat feet according to claim 1, characterized in that: The connecting unit (4) includes an anti-slip groove (401) formed at the bottom of the bottom support pad (103), an adhesive groove formed at the bottom of the bottom support pad (103), and an adhesive block (402) installed at the bottom of the adhesive groove.
6. A 3D-printed composite insole for protecting against accessory navicular bone pain in flat feet according to claim 2, characterized in that: The surface of the buffer pad (101) is provided with anti-slip texture.
7. The 3D-printed composite insole for protecting against paranaculum pain in flat feet according to claim 2, wherein the shock-absorbing unit (2) further includes a shock-absorbing pad (203) installed at the bottom of the bottom support pad (103).
Citation Information
Patent Citations
Correcting insole for severe flatfoot and heel ectropion
CN220832104U