Harold L Crowder

US Patent:

20140046450, Feb 13, 2014

Filed:

Oct 22, 2013

Appl. No.:

14/060080

Inventors:

Harold Lloyd Crowder - Concord NC, US

International Classification:

A61F 2/30

US Classification:

623 1811, 29428

Abstract:

A prosthetic joint includes: (a) a first member comprising rigid material and having a perimeter flange defined by an undercut groove, the flange defining a wear-resistant first contact surface having a protruding rim; (b) a second member comprising rigid material and having a perimeter flange defined by an undercut groove, the flange defining a wear-resistant, second contact surface having a protruding rim; and (c) a third member comprising rigid material positioned between the first and second members, the third member defining opposed wear-resistant third and fourth contact surfaces; (d) wherein the first and second contact surfaces bear against the third and fourth contact surfaces, to transfer loads through the member, while allowing pivoting motion between the first and second members; (e) wherein the flanges can deform elastically such that the first and second contact surfaces conform to the third and fourth contact surfaces.

US Patent:

20160338751, Nov 24, 2016

Filed:

May 18, 2016

Appl. No.:

15/157928

Inventors:

- Gastonia NC, US
Harold L. Crowder - Kannapolis NC, US
Michael D. Bissette - Belmont NC, US
Nathan W. Kellar - Belmont NC, US
Mark S. Wabalas - Huntersville NC, US

International Classification:

A61B 17/92

Abstract:

An apparatus for extracting a medical implant from bone includes: a housing; a coupler carried by the housing and configured to be mechanically connected to a medical implant; and a forcing mechanism carried by the housing and operable to apply a cyclic excitation force with a specified amplitude, frequency, and vector to the coupler. Methods are described for using the apparatus to remove and/or implant medical implants.