This application claims the benefit and priority from U. S. Provisional Patent Application, filed, the contents and disclosure of both are incorporated herein by reference for all purposes.
This invention relates to equine shoes. More specifically, it relates to an equine shoe structure and assembly that provides a cushioning effect on the hoof and legs, covers substantially all the underside of a hoof, provides an upper concave surface shaped to mate with a rounded shaped equine hoof.
Equine with laminitis or other diseases or abnormalities of the hoof require special hoof treatment. When an equine suffers laminitis, the lamina of the hoof is weakened and the position of the coffin bone seems to shift from its normal of parallel to the ground to an angled position. In fact, it is believed that the coffin bone does not actually shift but that the hoof shifts due to the weakened lamina. The shift of the position of the coffin bone is very damaging and often fatal to an equine.
Generally, correction of the shift and relief for the equine may be accomplished by proper trimming of the hoof and/or special rocker shoes (or attachments to shoes) or boots that reposition the hoof/coffin bone positions.
It has been found that trimming the hoof to a rounded shape (as by trimming to toe and heel) and attachment of a rocker shoe is especially effective in repositioning the coffin bone/hoof positions and gives very positive results.
What is needed is an equine shoe having an upper concave shape to mate with the rounded shape of a trimmed equine hoof. The present invention provides such a shaped shoe and a method of constructing such a shoe.
This invention is an equine, dual density, hoof shaped polymer shoe that generally covers the substantially the entire underside of a hoof. The shoe is sloped on the underside to allow the hoof to roll forward, or to the side, without unnecessary bending, thus allowing an equine to find a comfortable natural position to relieve stress on a sore, injured or diseased hoof. The structure is dual density polymer construction (having a top and a bottom section of differing densities) with a relatively narrow hard section on the top section and a thicker softer section below, the harder component attaches to the hoof and acts to stabilize the softer lower section. Copper or other solid medical components may be bonded into the top side (side in contact with the hoof when in use).
The topside of the solid structures is formed into a concave structure shaped to mate with a rounded under-surface of an equine hoof, the rounded shape formed in the hoof to provide a rocker shape to reposition the slope of the coffin bone. The rounded shape of the hoof is formed by trimming the hoof to a shape determined by observing a radiograph image of the hoof to allow a desired repositioning of the coffin bone. It has been found advantageous to shape the underside of an equine hoof, particularly if the hoof is diseased with laminitis, to ideally position the slope of the coffin bone to its natural position parallel to the ground. The position of the coffin bone is determined by observing radiographs of the hoof. Rounding the underside of the hoof, and attaching an equine shoe with a concave top surface that mates with the round shape of the hoof allows precise location of the coffin bone to achieve both comfort and healing relief for a laminitic equine hoof. The hoof (and attached shoe) may be rounded front to back but also side to side to correct any misalignment of the hoof and coffin bone. There are significant advantages when a hoof is so rounded and combined with a rocker bottom shoe.
The invention is also a structure to shape the topside of a polymeric equine shoe.
The shoes of this invention are dual density (different densities of a top section and a bottom section) polymer shoes such as those described in U.S. Pat. No. 10,548,304 issued Feb. 4, 2020. Shoes such as those described in
The shoe is sloped on the underside to allow the hoof to roll forward, or to the side, without unnecessary bending, thus allowing an equine to find a comfortable natural position to relieve stress on a sore, injured or diseased hoof. The structure is dual density construction with a relatively thin hard section on the top section and a thicker softer section below. The harder section attaches to the hoof and acts to stabilize the softer lower section. Copper or other solid medical components may be bonded into the top side (side in contact with the hoof when in use). The disclosure and drawings of U.S. Pat. No. 10,548,304 issued Feb. 4, 2020 and U.S. D897,052 issued Sep. 22, 2020 are incorporated herein by reference for all purposes.
In the present invention the top side of the solid structures as described above are shaped to form a concave structure shaped to mate or conform with a rounded undersurface of an equine hoof. It has been found to be advantageous to shape the underside of an equine hoof, particularly if the hoof is diseased with laminitis, to ideally position the equine coffin bone relative to the ground and provide for a “rocker” action that allows the hoof to rotate with less stress. The position of the coffin bone is determined by observing radiographs of the hoof to determine an optimum position of the coffin bone. Rounding the underside of the hoof, and attaching a polymer shoe with a concave upper side (positioned next to the underside of the rounded hoof) facilitates achieving a precise location of the coffin bone to provide both comfort a but healing relief fora laminitic equine hoof.
Referring to the drawings and pictures,
In one embodiment, for polyurethane shoes of a composition as described in U.S. Pat. No. 10,548,304 issued Feb. 4, 2020, the shoe is heated to about 300° F. to soften the hard polymer top section of the shoe.
In operation, a polymer shoe is heated to a desire temperature, placed in the recessed area of the device and the plunger activated to push the desired shape into the topside of the shoe and the entire device with the shoe is submerged in a water bath to quickly cool the heated shaped shoe and thus fix the concave shape in the topside of the shoe.
In the foregoing specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes can be made thereto without departing from the broader spirit and scope of the invention as set forth in the appended claims. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense. Therefore, the scope of the invention should be limited only by the appended claims.
Number | Date | Country | |
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63327319 | Apr 2022 | US |