Granted Patent B1

US 10,583,012 · App. 16/439,639 · Granted Mar 10, 2020

Inventor: Raphael S. F. Longobardi (Old Tappen, NJ)

A61F2/4014A61F2/4059A61F2/4081A61F2002/30878A61F2002/4037A61F2220/0025

Abstract

Claims (70)

1. A modular shoulder prosthesis system comprising:

a baseplate having

a base with a plurality of attachment holes passing therethrough and a pair of notches on opposed outer circumferential sides of said base, said pair of notches extend down from a mounting surface and in from said outer circumferential sides of said base, and

a central stem extending from said base and axially centered with one of said plurality of attachment holes;

a modular component configured to be removably attached to said base, said modular component having a plug for insertion into at least one attachment hole of said base;

a humeral stem having a receiving cavity extending in from one face; and

a modular humeral component configured to cooperate with said modular component, said modular humeral component having a post configured for removable insertion into the receiving cavity of said humeral stem, and

wherein said baseplate is capable of attachment to different modular components and said humeral stem is capable of attachment to different modular humeral components to facilitate both traditional anatomic total shoulder replacement and reverse total shoulder replacement with a change in the modular component and change in the modular humeral component; and

said notches are configured to provide a leverage point to facilitate separation of any attached modular component from said baseplate.

2. The system according to claim 1 , wherein said modular component includes a pair of flanges extending from opposing sides of said modular component, said flanges configured to align with said notches when said modular component is attached to said base and/or configured to engage with an interference fit said notches when said modular component is attached to said base, and

said flanges configured to provide a second leverage point on which to apply leverage for removal of said modular component after installation onto said baseplate.

3. The system according to claim 1 , wherein said modular component includes

a base having a concave surface, and

said plug extends from a surface opposite of said concave surface.

4. The system according to claim 3 , wherein said base of said modular component includes a high-density polyethylene.

5. The system according to claim 1 , wherein said modular humeral component further includes

a base having a receiving cavity,

said plug extends from a surface opposite of said receiving cavity, and

a shell inserted into said receiving cavity.

6. The system according to claim 5 , wherein said base of said modular component includes Cobalt-Chromium and said shell includes a high-density polyethylene.

7. The system according to claim 1 , wherein said modular component includes

a base,

a glenosphere extending from said base, and

said plug extends from a surface of said base opposite said glenosphere.

8. The system according to claim 7 , wherein said glenosphere is approximately a three-quarters sphere.

9. The system according to claim 1 , wherein said modular humeral component includes

a base having an inner head;

an outer shell over said inner head; and

said stem extending from said base on a surface opposing said inner head.

10. The system according to claim 9 , wherein said inner head is a hemi-spherical dome and said outer shell is a hemi-spherical cap that fits over said inner head,

said hemi-spherical cap is configured to slide relative about said hemi-spherical dome to allow for dual mobility between said hemi-spherical cap and said hemi-spherical dome.

11. The system according to claim 9 , wherein said inner head includes Cobalt-Chromium and said outer shell includes a high-density polyethylene.

12. The system according to claim 1 , further comprising a plurality of attachment mechanisms, wherein the attachment holes of said base of said baseplate are configured to engage with said attachment mechanisms.

13. The system according to claim 1 , wherein said post of said modular humeral component is eccentrically offset or manually offsetable from an axial center of said modular humeral component.

14. A modular shoulder prosthesis system comprising:

a baseplate having

a base with a plurality of attachment holes passing therethrough and a pair of notches on opposed outer circumferential sides of said base, said pair of notches extend down from a mounting surface and in from said outer circumferential sides of said base, and

a central stem extending from said base and axially centered with one of said plurality of attachment holes;

a modular component configured to be removably attached to said base, said modular component having a plug for insertion into at least one attachment hole of said base, and

wherein said baseplate is capable of attachment to different modular components to facilitate both traditional anatomic total shoulder replacement and reverse total shoulder replacement with a change in the modular component; and

said notches are configured to provide a leverage point to facilitate separation of any attached modular component from said baseplate.

15. The system according to claim 14 , further comprising a plurality of attachment mechanisms, wherein the attachment holes of said base of said baseplate are configured to engage with said attachment mechanisms.

16. The system according to claim 14 , wherein said modular component includes a pair of flanges extending down from opposing sides of said modular component, said flanges configured to engage with an interference fit said notches when said modular component is attached to said base and to provide a second leverage point on which to apply leverage for removal of said modular component after installation onto said baseplate.

17. The system according to claim 16 , wherein said modular component includes

a base having a concave surface, and

said plug extends from a surface opposite of said concave surface.

18. The system according to claim 16 , wherein said modular component includes

a base,

a glenosphere extending at an angle from said base, and

said plug extends from a surface of said base opposite said glenosphere.

19. A modular shoulder prosthesis system comprising:

a first baseplate configured to attach to a glenoid, said first baseplate having

a base with a plurality of attachment holes passing therethrough and a pair of notches on opposed outer circumferential sides of said base, said pair of notches extend down from a mounting surface and in from said outer circumferential sides of said base, and

a central stem extending from said base and axially centered with one of said plurality of attachment holes;

a modular component configured to be removably attached to said base, said modular component having a plug for insertion into at least one attachment hole of said base;

a second baseplate configured to attach to a humerus, said second baseplate having a receiving cavity extending in from one face; and

a modular humeral component configured to cooperate with said modular component, said modular humeral component having a post configured for removable insertion into the receiving cavity of said second baseplate, and

wherein said first baseplate is capable of attachment to different modular components and said second baseplate is capable of attachment to different modular humeral components to facilitate both traditional anatomic total shoulder replacement and reverse total shoulder replacement with a change in the modular component and change in the modular humeral component;

said first baseplate and said second baseplate are substantially identical; and

said notches of said first baseplate are configured to provide a leverage point to facilitate separation of any attached modular component from said first baseplate.

20. The system according to claim 19 , wherein said modular component includes a pair of flanges extending from opposing sides of said modular component, said flanges configured to engage with an interference fit said notches when said modular component is attached to said base, and a length of said flange is less than or equal to a height of said notch,

said second baseplate includes a base with a plurality of attachment holes passing therethrough and a pair of notches on opposed outer circumferential sides of said base, said pair of notches extend down from a mounting surface and in from said outer circumferential sides of said base, and

wherein said modular humeral component includes a pair of flanges extending from opposing sides of said modular humeral component, said flanges configured to engage with an interference fit said notches of said second baseplate when said modular humeral component is attached to said second baseplate,

said flanges of said modular component configured to provide additional surface area on which to apply leverage for removal of said modular component after installation onto said first baseplate, and

said flanges of said modular humeral component configured to provide additional surface area on which to apply leverage for removal of said modular humeral component after installation onto said second baseplate.

21. The system according to claim 9 , wherein said inner head of said base and said outer shell are configured to slide relative to each other to provide dual mobility.

22. The system according to claim 14 , wherein said modular component includes a pair of flanges extending from opposing sides of said modular component, said flanges configured to engage with an interference fit said notches when said modular component is attached to said base, and a length of said flange is less than or equal to a height of said notch, and

said flanges configured to provide additional surface area on which to apply leverage for removal of said modular component after installation onto said baseplate.

23. The system according to claim 14 , wherein said modular component includes a pair of flanges extending radially out from opposing anterior and posterior sides of said modular component, said flanges configured to align with said notches of said baseplate when said modular component is attached to said base, and said flanges configured to provide additional surface area on which to apply leverage for removal of said modular component after installation onto said baseplate.

24. The system according to claim 14 , wherein said notches are on the anterior and posterior sides of said base.

Assignments (2)

Continuity (1)

Cited By (10)

US 12,193,687 US 12,290,447 US 12,329,659 US 12,396,862 US 12,508,130 US 12,527,667 US 12,527,668 US 12,582,531 US 12,591,216 US 12,605,251