Implant for removable prosthetic nail
View Patent ↗An assembly for mounting a prosthetic nail for a human or animal digit. The assembly includes at least one transdermal anchor with an interior portion and an exterior portion. The interior portion may be positioned within tissue of the digit, and the exterior portion may extend outside the tissue of the digit. In another aspect, an exterior base may be positioned on a nail bed of the digit, and the exterior base may be coupled to the exterior portion of the transdermal anchor. The base may include a mount for removably a prosthetic nail to the base.
1. A prosthetic nail mount assembly, comprising:
a transdermal anchor with an interior portion and an exterior portion, wherein the interior portion is sized and configured to be positioned within tissue of a digit, and the exterior portion extends outside the tissue of the digit; and
an exterior base sized and configured to be directly positioned on a nail bed of the digit, wherein the exterior base is coupled to the exterior portion of the transdermal anchor;
wherein the exterior base includes a mount for removably coupling the base to a prosthetic nail, wherein the mount of the exterior base includes protrusions extending away from the base that are arranged to engage multiple couplers on the prosthetic nail; and
wherein the interior portion is free from direct bone contact in the digit.
2. The mount assembly of claim 1 , wherein the interior portion defines a through opening for capturing surrounding tissue of the digit.
3. The mount assembly of claim 2 , wherein the interior portion defines multiple through openings, and one of the through openings is tear-drop shaped.
4. The mount assembly of claim 1 , wherein the interior portion includes an arcuate extension at a proximal end of the interior portion for capturing surrounding tissue.
5. The mount assembly of claim 1 , wherein the interior portion includes an angled section angled outwardly to offset a remaining section of the interior portion away from a distal phalanx of the digit.
6. The mount assembly of claim 1 , wherein the transdermal anchor is made of a material that includes a rigid polymeric material.
7. The mount assembly of claim 6 , wherein the transdermal anchor is made primarily of polyetheretherketone.
8. The mount assembly of claim 1 , wherein the protrusions include multiple portions at right angles to each other.
9. The mount assembly of claim 1 , wherein the exterior base includes couplers for engaging corresponding retention members at a distal end of the exterior portion of the transdermal anchor.
10. The mount assembly of claim 1 , wherein the exterior portion is made of a material that includes a pliable polymeric material.
11. The mount assembly of claim 1 , comprising:
one or more additional transdermal anchors adjacent to the nail, wherein the one or more additional transdermal anchors has an interior portion and an exterior portion, wherein the interior portion is sized and configured to be positioned within tissue of the digit, and the exterior portion extends outside the tissue of the digit.
12. The mount assembly of claim 1 , wherein a layer of pliable polymeric material surrounds the prosthetic nail and is positioned between the prosthetic nail and the mount.