John J Demakas

US Patent:

20070156145, Jul 5, 2007

Filed:

Dec 30, 2005

Appl. No.:

11/322821

Inventors:

John Demakas - Spokane WA, US
Brent Johnston - Spokane WA, US

International Classification:

A61F 2/30

US Classification:

606069000

Abstract:

The invention includes skeletal support structures. The structures can be spinal plates (such as cervical plates), rods, hooks, vertebral spacers, vertebral structural replacement, or screws; and can be formed of aromatic polyamide material (such as para-aramid). The screws and/or hooks can contain pores configured to receive growing bone to enhance union of the screws and/or hooks with skeletal material. The invention also includes therapeutic constructions containing non-metallic structures attached to vertebrae through non-metallic fasteners.

US Patent:

20070161985, Jul 12, 2007

Filed:

Dec 5, 2005

Appl. No.:

11/295181

Inventors:

John Demakas - Spokane WA, US
Brent Johnston - Spokane WA, US

International Classification:

A61F 2/30

US Classification:

606061000

Abstract:

The invention includes screws configured to directly engage bones, with such screws including pores configured to receive bone structure grown from the bone to enhance union of the screw with the bone. The screws can be, for example, pedicle screws, and in some aspects can have bone-growth-stimulating material and/or bone cement within the pores. The invention also includes methods of attaching implants to skeletal regions. Such methods can include screwing a porous screw into the bone, allowing bone structure to grow from the bone into the porous screw, and subsequently fastening an implant to the porous screw.

US Patent:

20070154514, Jul 5, 2007

Filed:

Nov 22, 2006

Appl. No.:

11/562728

Inventors:

John J. Demakas - Spokane WA, US
Brent W. Johnston - Spokane WA, US
Anderson Collins - Corinth TX, US

International Classification:

A61F 2/28

US Classification:

424423, 623 1611

Abstract:

The invention includes skeletal support structures. The structures can be spinal plates (such as cervical plates), rods, hooks, vertebral spacers, vertebral structural replacement, joint replacement prosthetics, or screws; and can be formed of a carbon/metal matrix encapsulated with pyrocarbon. The screws and/or hooks can contain pores configured to receive growing bone to enhance union of the screws and/or hooks with skeletal material. The invention also includes therapeutic constructions containing structures attached to vertebrae through fasteners.