1
Hansen A Yuan, Chih I Lin, James A Davidson, Laura C Small, Thomas A Carls: Low wear artificial spinal disc. Smith & Nephew, Pravel Hewitt Kimball & Krieger, October 14, 1997: US05676701 (723 worldwide citation)

An artificial spinal disc for surgical placement between adjacent vertebrae including a first component for attaching to a first vertebrae, the first component having a concave recess, with the concave contoured surface having a circumference of 360.degree.. A second component for attaching to a sec ...


2
James A Davidson: Surface hardened biocompatible metallic medical implants. Smith & Nephew Richards, Pravel Hewitt Kimball & Krieger, May 16, 1995: US05415704 (161 worldwide citation)

This invention provides surface hardened, abrasion resistant high strength, biocompatible metal medical implants, in particular, titanium alloy implants which do not include any elements which have been shown or suggested as having short term or long term potential adverse effect from a standpoint o ...


3
James A Davidson: Plastic knee femoral implants. Smith & Nephew Richards, Pravel Hewitt Kimball & Krieger, October 25, 1994: US05358529 (159 worldwide citation)

A knee prosthesis includes plastic femoral and metallic (or ceramic) tibial components. The plastic femoral knee component articulates against a polished metal (e.g. cobalt alloy, titanium alloy, or stainless steel), or preferably ceramic (e.g. alumina, zirconia, nitride, or boride) patella and tibi ...


4
James A Davidson: Stents of enhanced biocompatibility and hemocompatibility. Pravel Hewitt Kimball & Krieger, November 25, 1997: US05690670 (145 worldwide citation)

Cardiovascular and other medical implants fabricated from low-modulus Ti-Nb-Zr alloys to provide enhanced biocompatibility and hemocompatibility. The cardiovascular implants may be surface hardened by oxygen or nitrogen diffusion or by coating with a tightly adherent, hard, wear-resistant, hemocompa ...


5
James A Davidson: Zirconium oxide and zirconium nitride coated stents. Smith & Nephew Richards, Pravel Hewitt Kimball & Krieger, July 22, 1997: US05649951 (143 worldwide citation)

Stents fabricated from a substrate of a low modulus metal coated with blue to black zirconium oxide or zirconium nitride. The coating provides enhanced thrombogenicity, biocompatibility, blood compatibility, corrosion-resistance, friction and microfretting resistance, durability, and electrical insu ...


6
James A Davidson: Bone cement reinforcement and method. Richards Medical Company, Pravel Gambrell Hewitt Kimball & Krieger, April 5, 1988: US04735625 (143 worldwide citation)

A reinforcing technique for bone cement used in the anchoring of prosthetic devices. The reinforced bone cement includes oriented reinforcement formed of a continuous fiber-like material that is embedded in the bone cement between at least a portion of the outer surface of the prosthetic device and ...


7
James A Davidson: Prosthetic implants with bioabsorbable coatings. Smith & Nephew Richards, Pravel Hewitt Kimball & Krieger, October 17, 1995: US05458653 (137 worldwide citation)

A novel coated prosthesis that can be tailored to avoid the problem of bone resorption caused by stress shielding. The permanent, load-bearing skeletal replacement prosthesis is coated or covered with a bioabsorbable polymer at selected sites on its surface so that bone affixation is preferentially ...


8
Richard L Dunn, Danny H Lewis, Thomas W Sander, James A Davidson, Neil B Beals, Yancy L Gill: Phosthetic ligament. Richards Medical Company, Kirkpatrick & Lockhart, December 13, 1988: US04790850 (124 worldwide citation)

A prosthetic ligament assembly includes a nonaugmented prosthetic ligament for permanently replacing a natural ligament spanning first and second body members, such as the femur and tibia, and a bone screw adapted for tensioning the prosthetic ligament during implantation. The prosthetic ligament in ...


9
James A Davidson: Zirconium oxide coated prosthesis for wear and corrosion resistance. Richards Medical Company, Pravel Gambrell Hewitt Kimball & Krieger, August 6, 1991: US05037438 (118 worldwide citation)

Orthopedic implants of zirconium or zirconium-based alloy coated with zirconium oxide to provide low friction, highly wear resistant coatings especially useful in artificial joints, such as hip joints, knee joints, elbows, etc. The invention zirconium oxide coated prostheses are also useful in that ...


10
James A Davidson: Titanium molybdenum hafnium alloy. Fulbright & Jaworski L, March 13, 2001: US06200685 (112 worldwide citation)

This invention describes a corrosion-resistant, high-strength, low-modulus, titanium based alloy having about 5-11 weight percent Mo and about 6-15 weight percent Hf. This alloy is suitable for use in the fabrication of articles for medical and non-medical applications having low modulus, improved c ...