Insole with a neuroma pad
View Patent ↗Footwear including an insole formed for relieving pressure on a common digital nerve of a foot. The insole has heel, mid and forefoot sections. The forefoot section of the insole is formed with a pad having a neuroma pad section which underlies the third and fourth metatarsal heads of the foot, so that when a bottom of the foot is placed on the insole, the neuroma pad section applies an upward force to the bottom of the foot sufficient to spread the third and fourth metatarsal heads away from one another and thereby relieve pressure on the third common digital nerve to reduce the risk of neuroma. In other embodiments, the pad is formed as a separate pad for placement in footwear. An insole designed for use with thonged footwear is also disclosed.
1. An insole formed for relieving pressure on a third common digital nerve of a foot, comprising
a heel section,
a mid section,
a forefoot section, and
a pad on the forefoot section comprising a metatarsal pad section having a front edge adapted to underlie one or more of the second, third and fourth metatarsal necks of the foot, and a neuroma pad section projecting forward from said front edge of the metatarsal pad section between the third and fourth metatarsal heads, said neuroma pad section having a width such that it underlies adjacent portions of the third and fourth metatarsal heads of the foot but does not underlie the second and fifth metatarsal heads of the foot whereby when a bottom of the foot is placed on the insole, the neuroma pad section applies an upward force to the bottom of the foot sufficient to spread the third and fourth metatarsal heads away from one another and thereby relieve pressure on said third common digital nerve between said third and fourth metatarsal heads.
2. An insole as set forth in claim 1 wherein said neuroma pad section has a width less than the combined widths of said third and fourth metatarsal heads.
3. An insole as set forth in claim 1 wherein said neuroma pad section is elongate and extends forward from the metatarsal pad section beyond the metatarsal phalangeal joints of the third and fourth metatarsals.
4. An insole as set forth in claim 1 wherein said neuroma pad section is generally rectangular in shape and projects in a direction generally parallel to the third and fourth toes.
5. An insole as set forth in claim 1 wherein the neuroma pad section has a width only slightly more than the spacing between the third and fourth metatarsal heads.
6. An insole as set forth in claim 1 wherein said insole and said pad are molded as an integral unit.
7. An insole as set forth in claim 1 wherein said insole has a skived peripheral edge.
8. An insole as set forth in claim 1 wherein said insole has a bottom surface formed with cushioning elements thereon.
9. An insole as set forth in claim 8 wherein said cushioning elements cover substantially the entire bottom surface of the insole.
10. An insole as set forth in claim 8 wherein said cushioning elements have an inherent anti-slip characteristic to hold the insole in place when placed in footwear.
11. An insole as set forth in claim 1 wherein said insole has a bottom surface with anti-slip characteristics.
12. An insole as set forth in claim 11 wherein said insole bottom surface has textured areas to provide said anti-slip characteristics.
13. An insole as set forth in claim 1 further comprising one or more cut lines indicating where the insole can be cut to accommodate feet of different size.
14. An insole as set forth in claim 13 wherein said one or more cut lines are on the heel and the forefoot sections of the insole.
15. An insole as set forth in claim 1 wherein the front edge of said metatarsal pad section underlies said second, third and fourth metatarsal necks of the foot, and wherein said neuroma pad section has opposite sides extending forward from said front edge of the metatarsal pad section.
16. An insole as set forth in claim 1 wherein the neuroma pad section has a width greater than the spacing between the third and fourth metatarsal heads but less than a distance across the third and fourth metatarsal heads.
17. An insole as set forth in claim 16 wherein the neuroma pad section has a planar top surface.
18. An insole as set forth in claim 17 wherein the neuroma pad section has opposite side edges inclined inwardly from bottom to top.