Implantable joint assembly featuring debris entrapment chamber subassemblies along with opposing magnetic fields generated between articulating implant components in order to minimize frictional force and associated wear

• US 8,926,705 B2
• Filed: 10/01/2012
• Issued: 01/06/2015
• Est. Priority Date: 05/10/2010
• Status: Expired due to Fees

• Current Assignee: Linares Medical Devices, LLC
• Original Assignee: Linares Medical Devices, LLC
• Inventors: Linares, Miguel A., Linares, Miguel A. Jr.
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): Mathew, Seema
• Application Number:
  US13/632,512
• Publication Number:
  US 20130030537A1
• Time in Patent Office: 827 Days
• Field of Search: 623/18.11, 623/21.13, 623/21.16, 623/2.17, 623/21.18, 623/16.11, 623/18.12, 623/20.2, 623/20.23, 623/201.11, 623/21.15, 623/23.39
• US Class Current: 623/18.12
• CPC Class Codes: A61F 2/02 Prostheses implantable into the body closure means for urethra or rectum or for artificial body openings therefor A61F2/0004
• CPC Class Codes: A61F 2/08 Muscles; Tendons; Ligaments sutures A61B17/04
• CPC Class Codes: A61F 2/30771 applied in original prostheses, e.g. holes or grooves
• CPC Class Codes: A61F 2/30965 Reinforcing the prosthesis by embedding particles or fibres during moulding or dipping
• CPC Class Codes: A61F 2/32 for the hip
• CPC Class Codes: A61F 2/38 for elbows or knees
• CPC Class Codes: A61F 2/3804 for elbows
• CPC Class Codes: A61F 2002/30079 magnetic
• CPC Class Codes: A61F 2002/30673 Lubricating means, e.g. synovial pocket
• CPC Class Codes: A61F 2002/30682 Means for preventing migration of particles released by the joint, e.g. wear debris or cement particles
• CPC Class Codes: A61F 2002/30807 Plurality of blind bores
• CPC Class Codes: A61F 2002/30823 having the shape of a reverse dovetail
• CPC Class Codes: A61F 2002/30827 Plurality of grooves
• CPC Class Codes: A61F 2002/30934 Special articulating surfaces
• CPC Class Codes: A61F 2002/30937 with cut-outs
• CPC Class Codes: A61F 2002/30971 Laminates, i.e. layered products

Abstract

A multi-component joint assembly incorporated into reconditioned end surfaces established between a first bone and opposing second bone. A first component is anchored into a reconditioned end surface of the first bone and exhibits a first exposed support surface. A second component is anchored into a reconditioned end surface of at least one of radius and ulna bones and exhibits a second exposed support surface. An intermediate component is supported in articulating fashion between the first and second anchored components. A plurality of micro debris entrapment chamber subassemblies are incorporated into the components and communicate with at least one of the articulating surfaces for isolating and capturing debris resulting from joint wear.

Claims

1. A multi-component joint assembly incorporated into reconditioned end surfaces established between a first bone and at least one opposing second bone, said assembly comprising:

a first component adapted to being anchored into the reconditioned end surface of the first bone and exhibiting a first exposed support surface;

a second component is adapted to being anchored into a reconditioned end surface of at least one of the second bones and exhibiting a second exposed support surface;

an intermediate component supported in at least one of eccentric or rotational articulating fashion between said first and second anchored components; and

a plurality of micro debris entrapment chamber subassemblies incorporated into at least one of said components and communicating with at least one of said articulating surfaces for isolating and capturing debris resulting from joint wear, each of said entrapment chamber subassemblies further including a constricted perimeter location separating a joint zone entryway with an enlarged interior, a pair of rubberized membranes secured to perimeter edge locations of said entryway location being caused to be inwardly deflected in response to in-flow pressure forces resulting from normal joint articulation, resulting in pass through of said debris into said enlarged interiors.

2. The joint assembly as described in claim 1, further comprising said membranes incorporating a magnetically charged zone for exerting an attraction force on a metallic or polymeric/metallic shaving or particle.

3. The joint assembly as described in claim 1, said intermediate component further comprising a spherical shaped component.

4. The joint assembly as described in claim 1, each of said anchored components further exhibiting a concave surface for supporting said intermediate component.

5. The joint assembly as described in claim 1, each of said first, second and intermediate components further being constructed of at least one of a metal, plastic, polymer or composite material.

6. A multi-component joint assembly incorporated into reconditioned end surfaces established between a first bone and at least one opposing second bone, said assembly comprising:

a first component adapted to being anchored into the reconditioned end surface of the first bone and exhibiting a first exposed support surface;

a second component adapted to being anchored into a reconditioned end surface of at least one of the second bones and exhibiting a second exposed support surface;

an intermediate component supported in at least one of eccentric or rotational articulating fashion between said first and second anchored components;

an electromagnetic force established between said intermediate component and at least one of said first and second anchored components includes opposite polarities established between at least a surface layer of said intermediate component and said anchored components in order to create a cushioning and impact force reducing layer along articulating surfaces between said components; and

said intermediate component further including a spherical shaped element including a continuously recharging core electromagnet, an insulating layer surrounding said core electromagnet, with at least one polarity charged external layer, an algorithm integrated into said core electromagnet and, in response to varying joint load impact forces determined at said articulating interface established between said intermediate component and anchored components, generating an adjustable opposing force in order to maintain a desired separation profile between said components.

7. The joint assembly as described in claim 6, said intermediate component further comprising a spherical shaped element incorporating a core magnet exhibiting a first polarity which defines a static electromagnetic generating force along with an outer surface layer exhibiting an opposite polarity.

8. The joint assembly as described in claim 6, further comprising outer layers associated with each of said anchored components exhibiting an opposing force generating polarity relative to a polarity associated with said intermediate component.

9. An artificial elbow implant assembly incorporated into reconditioned opposing end surfaces of each of an upper humerus bone and lower radius and ulna bones, said implant assembly comprising:

a first implant component adapted to being anchored into the reconditioned end surface of the humerus bone and exhibiting a first concave shaped and magnetically chargeable surface layer;

second and third components adapted to being anchored into the reconditioned end surfaces of each of the radius and ulna bones in opposing fashion to said first implant component, said second and third components exhibiting second and third concave shaped and magnetically chargeable surface layers; and

a spherical shaped intermediate component incorporating a core magnet and supported in an articulating fashion between said magnetically chargeable surface layers such that, in response to alternating a polarity charge applied to said magnetically chargeable surface layers and said core magnet, a continuous and separating cushion force is created between said components resulting in reduction in inter-abrading friction and increased wear life a plurality of micro debris entrapment chamber subassemblies incorporated into at least one of said components and communicating with at least one of said articulating surfaces for isolating and capturing debris resulting from joint wear, wherein each of said entrapment chamber subassemblies further comprises a constricted perimeter location separating a joint zone entryway with an enlarged interior, a pair of rubberized membranes secured to perimeter edge locations of said entryway location being caused to be inwardly deflected in response to in-flow pressure forces resulting from normal joint articulation, resulting in pass through of said debris into said enlarged interiors.

10. The implant assembly as described in claim 9, further comprising said membranes incorporating a magnetically charged zone for exerting an attraction force on a metallic or polymeric/metallic shaving or particle.

11. The implant assembly as described in claim 9, said spherical shaped intermediate component further comprising a pair of outer most magnetically charged layers surrounding said core magnet and in opposing electromagnetic force communicating fashion with said magnetically chargeable surface layers of said first, second and third implant components.